Construction Scheme of Railway Engineering Track

Uploaded on: 2018-04-17 09:37:07 come from: Road and bridge municipal administration / Road and bridge construction design / construction plan

zero

3.96 points

XX project is located in XX, including two parts: passenger station reconstruction and new construction. 0.03 km of new track laying on the main line, 71.73 km of station track laying, 140 sets of new turnouts and 71.7 km of track bed laying; Reconstruction and demolition of 2.88 km of lines, repaving of 0.41 km, demolition of 10 groups of turnouts, repaving of 2 groups, and paving of 2.88 km of track beds.

Railway engineering track construction scheme - Figure 1

Railway engineering track construction scheme - Figure 2

Railway engineering track construction scheme - Figure 3

Railway engineering track construction scheme - Figure 4

Railway engineering track construction scheme - Figure 5

Click to download the source file now

Special statement: This material belongs to the sharing uploaded by users Downloaded content, only for learning, not for commercial use. If there is any copyright problem, please timely contact Station delete!

Collection

WeChat code scanning and sharing

Click to share

Related recommendations

Blasting construction of anchored piles in railway engineering programme

[Project overview] The left side of the line is 380m long. A retaining wall between cutting piles is set, 342m long. Anchor piles are set. The pile section is 1.5 × 2m. The pile spacing (middle middle) is 6m. The short side of the pile is arranged along the line direction. A total of 58 C30 reinforced concrete piles are used. The length of the starting and ending piles is 9m and the rest are 11m. 　

Topic: railway engineering Blasting construction scheme Engineering blasting
Construction of test section of double block ballastless track of [Henan] railway project programme (China Railway)_
The surface layer of subgrade bed in this section is 40cm thick and filled with graded crushed stone. The transition section of road and bridge is filled with graded crushed stone containing 3~5% cement. The bottom soil of subgrade bed is filled with improved soil containing 5~7% cement. The subgrade foundation is treated with cement soil compaction piles, column hammer expansion piles, CFG piles. The pile top is paved with a 0.8-1.0m thick 28 lime soil cushion with two layers of two-way geogrid with tensile strength not less than 80KN/m.

Topic: Construction method of double block ballastless track Test section construction scheme Special construction scheme for test section
Analysis on Fine Adjustment Technology of Ballastless Track in Railway Engineering
5.1 Preparations (1) CPIII resurvey comprehensively resurvey the CPIII control points, restore the defective points, and protect them in the process. Each sleeper is required to be uniquely numbered. The number shall be uniformly printed in black ink to the outside of the sleeper. The specific numbering and printing method shall be in accordance with the unified standard of the headquarters. Measure the five key elements of the curve, and mark the curve control point on the outside of each rail....... 5.2. Track measurement (1) Use the track inspection trolley to measure the track one by one sleeper continuously....... (2) Before measurement, the total station setting accuracy should meet the requirements, and the instrument should be checked. The station setting error shall be controlled within 0.7 mm, and the special section can be controlled within Imrn; The direction error shall be controlled within 1.0 seconds, and the special section can be controlled within 1.4 seconds...... (3) The track in the section shall be measured continuously, and the overlapping length of two measurements shall not be less than 8 sleepers when measured in batches. The station turnout shall be measured separately, and the overlapping length with the lines at both ends shall not be less than 150 m. The overlapping length of track detection between sections shall not be less than 150m............ (4) The track inspection trolley shall be used to continuously measure the stars of each track sleeper. The length of each measurement shall not exceed 60m. A folder shall be established at each station. When the error of station change is small, data can be collected continuously, but the overlapping mileage section must be indicated. The measurement shall be carried out twice, and the station shall be set at the wrong position. For the section with abnormal measurement results, the feeler gauge and 1m straight steel ruler shall be used on site to timely recheck the status of rails and fasteners, find out the reasons, confirm the reliability of the measurement results, and provide a basis for the next adjustment...... According to the measurement data, the trial calculation personnel shall comprehensively analyze and evaluate the track accuracy and linear sections, and determine the section or location to be adjusted, And issue formal disclosure to each track adjustment team, requiring both parties to sign for backup

Topic: Railway track construction technology Construction technology analysis of soft surrounding rock in railway tunnel Track Technical Specifications
Electrical construction organization of railway engineering programme
This document is the electrical construction organization scheme of railway engineering. The content is detailed and can be used for reference.

Topic: Construction organization scheme for electrical installation Railway construction survey scheme Construction Scheme for Railway Electrification Reconstruction
Construction of test section of double block ballastless track of [Henan] railway project programme (China Railway)
The construction of double block ballastless track in this test section starts from XX268+196.99 and ends at XX269+475.36, with a total length of 1278.37m, including two road bridge transition sections of xx grand bridge and xx grand bridge. The surface layer of subgrade bed in this section is 40cm thick and filled with graded crushed stone. The transition section of road and bridge is filled with graded crushed stone containing 3~5% cement. The bottom soil of subgrade bed is filled with improved soil containing 5~7% cement. The subgrade foundation is treated with cement soil compaction piles, column hammer expansion piles, CFG piles, and the pile top is paved with 0.8~1.0m thick piles

Topic: Construction method of double block ballastless track Test section construction scheme Special construction scheme for test section
Construction of a temporary access road of Taiyuan Zhongyin Railway Project programme
Catalog I, Project Brief IV Personnel and machinery allocation of the construction team Measures for Environmental Protection and Civilized Construction· ······················17

Topic: Construction Scheme for Temporary Access Road in Sichuan Construction Scheme for Temporary Access Road of Municipal Pipe Network Construction scheme for temporary access road to the site
Waterproof and drainage construction of railway engineering tunnel programme
Contents 1. Description of preparation 2. 1.1 Basis of preparation 2. Purpose of preparation 2. Construction principles 2. 3. Main measures for tunnel waterproofing and drainage 2. 4. Waterproof and drainage at portal 3. 5. Treatment of initial concrete leakage 4. 6. Waterproof and drainage construction 5 6.1 General provisions 5 6.2 Construction process 5 6.3 Setting of drainage blind ditch 5 6.4 Construction of non-woven fabric and waterproof board 6. 6. Protection of waterproof board 8 6.6 Construction joints Waterproof treatment measures for deformation joints 8 6.7 Construction regulations for waterstop 10 6.8 Construction regulations for waterstop 11 7 Filling grouting 11 8 Precautions for waterproof and drainage construction 11

Topic: Construction Scheme of Railway Tunnel Summary of railway tunnel construction Code for Construction of Railway Tunnel
Secondary lining construction of railway engineering tunnel programme
Table of Contents 1. Preparation Description 2. 1.1 Preparation Basis 2. 1.2 Preparation Principles 2. 1.3 Preparation Scope 2. 2. Construction Scheme 2. 3. Construction Regulations for Secondary Lining 3. 4 Secondary lining construction 4 4.1 Construction technical specification 4 4.2 Technical requirements for formwork trolley 5 4.3 Arch wall construction method 5 5 Reinforcement engineering 7 5.1 Process flow 7 5.2 Construction preparation 7 5.3 Preparation of batching certificate 8 5.4 Reinforcement processing 8 5.5 Reinforcement welding 9 5.6 Reinforcement binding 11 5.7 Reinforcement installation 11 5.8 Reinforcement quality assurance 11 6 Backfilling grouting behind secondary lining 12 6.1 Grouting hole 12 6.2 Grouting slurry preparation 13 6.3 Grouting pressure 13 6.4 Precautions for grouting construction 13 6.5 Grouting management 13 7. Quality assurance measures for secondary lining 14 7.1 Correct formwork erection 14 7.2 Quality assurance measures for secondary lining concrete 14 8. Safety assurance measures 14

Topic: Construction Scheme of Railway Tunnel Construction Scheme of Tunnel Secondary Lining Special construction scheme for tunnel secondary lining
Construction of comprehensive grounding test section of a railway project programme
The starting and ending mileage of the comprehensive grounding test section of XX section of the second double line from XX to XX is DK971+000 ～ DK974+000. The dry area where the second double line XX section of XX is located has long dry season and short rainy season, less and concentrated precipitation, high soil resistivity, and the natural grounding body is difficult to meet the requirement that the grounding resistance is not more than 1 ohm. Through the comprehensive grounding system test, relevant basic data and data are collected to provide a basis for the preparation of the implementation plan for the comprehensive grounding system of the whole line.

Topic: Test section construction scheme Construction contract of test section Construction scheme of c20 retaining wall test section
Practical construction of mixing pile in a railway project programme
The practical construction organization design scheme of mixing pile in a railway project is detailed and can be downloaded by netizens.

Topic: Tunnel implementation scheme Practical construction scheme for t beam installation Practical construction organization design of railway engineering
Winter construction of a section of Nanjiang reconstructed railway project programme
The railway project enters the winter construction period when the average temperature (the average value of the highest and lowest temperature or the average value of the outdoor temperature at 6:00, 14:00 and 21:00 local time) of the day and night on the construction site is lower than+5 ℃ for three consecutive days or the minimum temperature reaches - 3 ℃. The construction of this section in winter must be carried out in strict accordance with this plan for the construction of the prefabrication plant, culvert extension, subgrade, beam and bridge works of Ku'a Additional Second Section of South Xinjiang Railway.

Topic: Construction Scheme of Railway in Winter Construction Scheme for Installation of a Section of Bridge Reconstruction construction scheme
Construction of subgrade test section in a section of railway engineering programme
The line of XX East - XX South Section of XXXX Railway Passage starts from XX East Station of XX Line in the west and ends at XX South Station in the east. The construction mileage of bid XX of China Railway XX Bureau is XX1247+632~XX1279+800, and the length of main subgrade line is 29.65km. When selecting the test section, taking into account the actual situation of the site surface cleaning and the subgrade section between structures, the test section for earthwork subgrade filling in this section is XX1250+486.70~XX1250+623.34, with a length of 136.64m, a minimum filling height of 3.5m and a maximum filling height of 6.45m. It is organized and implemented by the first division.

Topic: Construction Scheme for Test Section of Stone Subgrade Test section of subgrade works Summary of subgrade test section construction
Graded Crushed Stone Construction for Road Bridge Transition Section of Railway Engineering programme
The transition section below the base layer of Chengdu Chongqing Railway Passenger Dedicated Line shall be filled with graded crushed stone (mixed with 3% cement). The appropriate filler gradation and compaction machinery, the loose paving thickness and rolling process of different fillers, the control range of the optimal water content of fillers, the optimal machinery matching and construction organization shall be determined through the process test, and the reasonable process flow and construction method shall be determined, Guide the overall filling construction of subgrade transition section in the next step.

Topic: Transitional construction scheme Construction Scheme of Railway Bridge Model construction scheme of road section
Construction of one inserted turnout in railway engineering programme
In the track laying base, a set of right turnout J1 (J1 is 50kg/m-12 concrete sleeper turnout) is temporarily inserted at the auxiliary curve K134+453.915 behind the No. 12 turnout of the arrival departure track of XX South Station, introduced into the track laying base, and then JXX turnout (J3 is 50kg/m-9 concrete sleeper turnout) and safety line are set on the lead-in line. J1 and JXX turnouts are incorporated into the station interlocking of XX South Station and are managed by the station and equipment management department. Route XX of XX South Station is inserted into the turnout. Turnout insertion time: according to the time of overall relocation, cutover and interlocking commissioning of the signal building of the newly built XX South Station, 9:00~14:40, September 24, 2009, it is determined that 9:00~12:00, September 24, 2009 is the construction time of turnout insertion. Driving conditions: slow down construction 40 minutes before the blockade, with a speed limit of 25 km/h. After the opening, the first train has a speed limit of 15 km/h and is not a passenger train, the second train has a speed limit of 25 km/h, and the third train has a speed limit of 45 km/h. Equipment handover: after the line is opened, it will be automatically handed over to the equipment management unit after 24 hours of maintenance.

Topic: Construction scheme of steel structure plug-in column base Construction Scheme for Crossing Railway Construction Scheme of Railway in Rainy Season
Temporary power supply construction of a railway project in Zhengzhou programme
The newly-built T-beam prefabrication yard is located at the southwest corner of the intersection of the new 107 National Highway and Zhengbian Road, covering an area of 85 mu T beam prefabrication yard is divided into 4 areas: (1) production supporting area: mainly including office and power distribution room. (2) Reinforcement fabrication and storage area: (3) beam fabrication area: (4) beam storage area:

Topic: Construction Scheme for Temporary Power Supply of Railway Engineering Concrete construction scheme for railway engineering Railway engineering survey
Temporary power supply construction of a reconstructed railway project programme
Description This project is to reconstruct the railway in the northwest of a province. The starting and ending mileage of this section is ～, long. The main work includes demolition works, subgrade works, bridges and culverts, tracks and other comprehensive works in front of the station. This power utilization scheme is a temporary power utilization scheme for railway. Different from the temporary power utilization scheme for building construction sites, this scheme is described from the surrounding environment and power facilities. The design is reasonable, especially the scheme of sectionalized and multi-point transformer layout, which is specific and instructive. Various measures for electric equipment are also in place. In addition, the distribution box, cable line and switch box are also described in detail. 14 pages in total.

Topic: Construction Scheme for Temporary Power Supply of Railway Engineering Code for engineering survey of reconstructed railway Concrete construction scheme for railway engineering
Electrical Construction Organization of Fengfu Railway Project programme
Electrical Construction Organization Scheme of Fengfu Railway Project Electrical Construction Organization Scheme of Fengfu Railway Project Electrical Construction Organization Scheme of Fengfu Railway Project

Topic: Construction organization scheme for electrical installation Railway construction survey scheme Construction Scheme for Railway Electrification Reconstruction
Electrical construction organization of a railway project section programme
From Hengfeng Station K0+000 (＝ Shanghai Kunming K596+057.860) to Nanping South Station K250+564.108, the existing line is 250.172km long, including 67.608km in Jiangxi Province and 182.564km in Fujian Province; Hengfeng Relief Line K0+000 (＝ Shanghai Kunming K596+018.480) to K7+410.771 (＝ Fengfu Line K2+882.681), the existing line is 7.411km long, belonging to Jiangxi Province; Shangrao connecting line K0+000 (＝ Shanghai Kunming K562+008.450) to K35+558.953 (＝ Fengfu Line K22+603.616), the existing line is 38.917km long and belongs to Jiangxi Province; Nanping north-south west connecting line K0+000 (＝ Fengfu Line K249+814.285) to K0+535.709 (＝ Outer South Line K27+221.088), the existing line is 0.536km long, belonging to Fujian Province; Pre station and post station works involved in the above scope

Topic: Construction organization scheme for electrical installation Railway construction survey scheme Construction Scheme for Railway Electrification Reconstruction
[Sichuan] Railway engineering subgrade protection and drainage construction programme (Reclaimed water)
Catalog I, Preparation Instructions 2, Quality Objectives 3, Safety Objectives 3, Environmental Protection, Water and Soil Conservation Objectives 3, V, Project Introduction 4, Main Construction Parts and Quantities 12, VII, Construction Technical Requirements 14, VIII, Resource Allocation 18, IX, Construction Preparation 19, Construction Technology and Methods 20, XI, Inspection and Test 36, XII, Duration Assurance Measures 37, XIII Construction measures in special seasons 40 XIV. Construction organization structure and quality assurance 41 X Safety assurance system, safety assurance measures 44 XVI. Environmental protection and water and soil conservation measures 51 XVII. Civilized construction measures 54

Topic: Construction Scheme for Railway Subgrade Drainage Construction Scheme of Road Reclaimed Water Works Construction scheme for subgrade protection in rainy season
Secondary lining construction of railway engineering tunnel programme
Table of Contents 1. Preparation Description 2. 1.1 Preparation Basis 2. 1.2 Preparation Principles 2. 1.3 Preparation Scope 2. 2. Construction Scheme 2. 3. Construction Regulations for Secondary Lining 3. 4 Secondary lining construction 4 4.1 Construction technical specification 4 4.2 Technical requirements for formwork trolley 5 4.3 Arch wall construction method 5 5 Reinforcement engineering 7 5.1 Process flow 7 5.2 Construction preparation 7 5.3 Preparation of batching certificate 8 5.4 Reinforcement processing 8 5.5 Reinforcement welding 9 5.6 Reinforcement binding 11 5.7 Reinforcement installation 11 5.8 Reinforcement quality assurance 11 6 Backfilling grouting behind secondary lining 12 6.1 Grouting hole 12 6.2 Grouting slurry preparation 13 6.3 Grouting pressure 13 6.4 Precautions for grouting construction 13 6.5 Grouting management 13 7. Quality assurance measures for secondary lining 14 7.1 Correct formwork erection 14 7.2 Quality assurance measures for secondary lining concrete 14 8. Safety assurance measures 14

Topic: Construction Scheme of Railway Tunnel Construction Scheme of Tunnel Secondary Lining Special construction scheme for tunnel secondary lining
Construction of railway engineering subgrade adjacent to existing line programme
Ning'an main line DK81+580 ～ DK82+964.98, corresponding to the existing line mileage of k107+137 ～ k108+522, the main line foundation treatment form is prestressed pipe piles, and a 50cm gravel cushion layer is set on the pile cap. The main content of subgrade construction is the cushion layer filling and subgrade filling. The minimum distance between the subgrade filling sideline and the center of the existing line is 6.58m; DK83+004.48～DK83+890， The corresponding mileage of the existing line is k108+561.5 ～ k109+515, and the foundation treatment form of the main line is CFG piles. A 50cm gravel cushion layer is set on the pile top. The main content of subgrade construction is the cushion layer filling and subgrade filling. The minimum distance between the subgrade filling sideline and the center of the existing line is 7.56m; DK83+890 ～ DK84+151 section corresponds to the existing line mileage of k109+515 ～ k109+776. The main line foundation is treated by prestressed pipe piles. A 50 cm C30 concrete raft is set on the pile top. The nearest distance between the subgrade filling edge line on the raft and the center of the existing line is 10.58 m. Subgrade construction mainly includes raft construction and subgrade filling.

Topic: Safety construction scheme for existing railway lines Construction scheme of pebble road Construction scheme of rainy season road
Various tunnel construction programme Method (new railway engineering sheet pile wall)
Various construction schemes and methods for tunnels (pile sheet wall of new railway project) Various construction schemes and methods for tunnels (pile sheet wall of new railway project)

Topic: Construction method of railway tunnel Special construction scheme for new tunnel Construction Scheme of New Railway Station Building Project
Special construction of subgrade transition section of railway engineering programme (China Railway)
The subgrade of this section is located in XX District, XX City. The starting and ending mileage of the construction site is XX8+382.72~XX11+561.87. The total length is 3179.15m, the maximum excavation depth is 11.45m, and the maximum filling height is 16.25m. The surface layer of embankment subgrade bed in this section is filled with graded crushed stone with a thickness of 0.7m; The bottom layer of subgrade bed is filled with 2.3mA thick group B filler. The surface layer of the cutting subgrade bed is filled with graded crushed stone with a thickness of 0.6m; The lower part is replaced with 0.2m medium coarse sand sandwiched with a layer of composite geomembrane. The soil layer and the bottom layer of the completely weathered rock bed are replaced with 0.9m improved road soil mixed for improvement. The strongly weathered and weakly weathered rock bed is not replaced. The surface layer of subgrade bed in half embankment and half cutting section shall be filled with 0.7m thick graded crushed stone; Excavate and replace 1.0mA and group B fillers below the surface of the subgrade bed. The bottom surface is made into an outward 4% one-way drainage slope, and a drainage ditch is set outside the slope toe.

Topic: Special construction scheme for subgrade transition section Technical disclosure of subgrade transition section construction China Railway Special Construction Scheme
Special construction for subgrade protection of railway engineering programme
Division I of Civil Engineering Bid II of XX Railway starts at XX Railway Station and ends at No. 63 abutment of XX2 super large bridge (DK174+750 - DK183+327 DK204+027----DK249+062)。 The total length of the route is 53.612km; After deducting five major bridges and extra large bridges, the total length of the route is 48.432 km.

Topic: Special construction scheme for highway subgrade protection Special construction scheme for protection Special construction scheme for temporary protection
Construction of subgrade slope protection for high-speed railway engineering programme
The XX passenger dedicated line project contracted by the Second Work Area of the Project Management Department of XX Section of XX Passenger Dedicated Line of XX Public Transport Bureau is located in the middle east of XX Province, passing through 2 prefecture level cities (XX City, XX City), 4 towns (XX Town, XX Town, XX Tun Town XX Town), the starting and ending mileage of the line is changed to XX12+036.7-XX36+638.12 (including two sections of subgrade changed to XX369+400 - XX369+330.74 and XX7+941.65 - XX8+311.82), the total length of the line is about 25km, and it is a comprehensive section of bridges, stations, tunnels and subgrade.

Topic: High speed protection construction scheme Construction Scheme of Railway Protection Works Construction scheme of high-speed railway
Construction of Overhead Contact System Protection for Railway Engineering programme
The new railway XX to XX passenger dedicated line project is a part of the national medium and long-term railway network planning. This section is the first section of the new railway XX to XX passenger dedicated line project. The starting mileage of the third division of our project department is DK28+438 ～ DK34+670, and the main line is 6.232km long. The D2 section of the newly-built XX to XX passenger dedicated railway XX west crossing XX expressway crosses the southeast loop line to the downward connecting line in the XX direction of XX line. The starting mileage is DKXX+459.24~DKXX+680.94. It is designed as a continuous beam bridge with one connection and three spans (60+100+60) m, and the pier numbers are 432 #~435 #. The main span is 100m, and the main span is inclined to span the existing southeast loop line to the downward connecting line of XX direction of XX line. The included angle between the bridge center line and the existing railway is 18.7 °, and the intersection mileage is DKXX+558.19 (i.e. the existing connecting line mileage LDK15+297.40). See Annex I for the plan of continuous beam bridge site.

Topic: Special construction scheme for net protection Construction Scheme for Protective Door of Railway Tunnel Construction Scheme for Railway Safety Protection
Special construction for prefabrication of railway engineering protective fence programme
1. Type of protective fence: (1) 1.8m high reinforced concrete protective fence plus 0.5m fence roll cage; (2) 2.2m high reinforced concrete protective fence plus 0.5m fence roll cage; (3) Add fence roll cage outside the 2.7m high reinforced concrete protective fence metal mesh (with corner); (4) 1.8m high reinforced concrete protective fence; (5) 1.8m high reinforced concrete column metal mesh protective fence.

Topic: Special construction scheme for protective fence Technical disclosure of railway protective fence construction Technical disclosure of concrete protective fence
Special construction for subgrade slope protection of railway engineering programme
The starting mileage of this section is from XX to XX, the total length of the subgrade is 8.82km, and when the height of the embankment (cutting) is greater than 3.0m, the arch skeleton (clear distance 3.0m * 3.0m) is used for slope protection. M10 mortar rubble toe protection is set at the lower part of the skeleton, and C15 rubble concrete is used for the toe wall, and C15 concrete is cast in situ on the toe wall, and hollow bricks are laid in the skeleton for protection. Expansion joints shall be set every 15.02m along the line, with a width of 0.02m. The joints shall be filled with asphalt hemp tendons in full section, and steps with a width of 0.6m shall be set every 100m.

Topic: Special construction scheme for subgrade slope protection Special construction scheme for railway safety protection Special construction scheme for temporary protection
Winter construction of a section of Nanjiang reconstructed railway project programme ..
The railway project enters the winter construction period when the average temperature (the average value of the highest and lowest temperature or the average value of the outdoor temperature at 6:00, 14:00 and 21:00 local time) of the day and night on the construction site is lower than+5 ℃ for three consecutive days or the minimum temperature reaches - 3 ℃. The construction of this section in winter must be carried out in strict accordance with this plan for the construction of the prefabrication plant, culvert extension, subgrade, beam and bridge works of Ku'a Additional Second Section of South Xinjiang Railway.

Topic: Construction Scheme of Railway in Winter Construction Scheme for Installation of a Section of Bridge Reconstruction construction scheme
[Zhejiang] Special construction of subgrade transition section of railway engineering programme (China Railway)
The subgrade of this section is located in XX District, XX City. The starting and ending mileage of the construction site is XX8+382.72~XX11+561.87. The total length is 3179.15m, the maximum excavation depth is 11.45m, and the maximum filling height is 16.25m. The surface layer of embankment subgrade bed in this section is filled with graded crushed stone with a thickness of 0.7m; The bottom layer of subgrade bed is filled with 2.3mA thick group B filler. The surface layer of the cutting subgrade bed is filled with graded crushed stone with a thickness of 0.6m; The lower part is replaced with 0.2m medium coarse sand sandwiched with a layer of composite geomembrane. The soil layer and the bottom layer of the completely weathered rock bed are replaced with 0.9m improved road soil mixed for improvement. The strongly weathered and weakly weathered rock bed is not replaced. The surface layer of subgrade bed in half embankment and half cutting section shall be filled with 0.7m thick graded crushed stone; Excavate and replace 1.0mA and group B fillers below the surface of the subgrade bed. The bottom surface is made into an outward 4% one-way drainage slope, and a drainage ditch is set outside the slope toe.

Topic: Special construction scheme for subgrade transition section Technical disclosure of subgrade transition section construction China Railway Special Construction Scheme
Construction of bridge and culvert abutment back backfill transition section of a railway project programme
The total length of WZ railway from WCW to ZD and from ZD to ZDB is 26 km. 43 culverts are designed for the whole line, including 33 rectangular culverts, 4 slab culverts and 6 box culverts. There are 4 bridges in total along the line, including 1 box bridge, 1 small bridge, and over crossing the highway; There are 2 medium bridges, which are used to cross river channels and cross existing roads.

Topic: Special construction scheme for subgrade transition section Transitional construction scheme Code for filling of transition section of railway bridge and culvert
Construction of railway engineering subgrade adjacent to existing line programme
Ning'an main line DK81+580 ～ DK82+964.98, corresponding to the existing line mileage of k107+137 ～ k108+522, the main line foundation treatment form is prestressed pipe piles, and a 50cm gravel cushion layer is set on the pile cap. The main content of subgrade construction is the cushion layer filling and subgrade filling. The minimum distance between the subgrade filling sideline and the center of the existing line is 6.58m; DK83+004.48～DK83+890， The corresponding mileage of the existing line is k108+561.5 ～ k109+515, and the foundation treatment form of the main line is CFG piles. A 50cm gravel cushion layer is set on the pile top. The main content of subgrade construction is the cushion layer filling and subgrade filling. The minimum distance between the subgrade filling sideline and the center of the existing line is 7.56m; DK83+890 ～ DK84+151 section corresponds to the existing line mileage of k109+515 ～ k109+776. The main line foundation is treated by prestressed pipe piles. A 50 cm C30 concrete raft is set on the pile top. The nearest distance between the subgrade filling edge line on the raft and the center of the existing line is 10.58 m. Subgrade construction mainly includes raft construction and subgrade filling. DK85+150～+305， The mileage of the corresponding existing line is k110+850 ～ k111+100, and the foundation treatment form is pipe pile, the nearest distance from the center of the temporary maintenance line is 20.31m; The existing mileage of DK85+305~+360CFG pile treatment section is k111+100~+160, and the shortest distance from the temporary locomotive line is 23.34m.

Topic: Safety construction scheme for existing railway lines Construction scheme of pebble road Construction scheme of rainy season road
Construction of subgrade test section in a section of railway engineering programme (China Railway Construction Corporation)
The line of XX East - XX South Section of XXXX Railway Passage starts from XX East Station of XX Line in the west and ends at XX South Station in the east. The construction mileage of bid XX of China Railway XX Bureau is XX1247+632~XX1279+800, and the length of main subgrade line is 29.65km. When selecting the test section, taking into account the actual situation of the site surface cleaning and the subgrade section between structures, the test section for earthwork subgrade filling in this section is XX1250+486.70~XX1250+623.34, with a length of 136.64m, a minimum filling height of 3.5m and a maximum filling height of 6.45m. It is organized and implemented by the first division. The slope protection subgrade of section XX1250+486.70~XX1250+623.34 is flat and open. The vegetation is mainly cultivated land and partially forest land, with a coverage rate of about 95%. The geological structure is not developed. The design filling engineering measure is to fill the surface layer of subgrade bed with group A filler, 0.6 m thick; The bottom layer of the subgrade bed is filled with group A and B fillers with a thickness of 1.9m; Group C and above fillers shall be filled below the subgrade bed. Before embankment filling, 0.3-0.6m thick topsoil shall be removed and compacted before filling.

Topic: Construction Scheme for Test Section of Stone Subgrade Test section of subgrade works Summary of subgrade test section construction
Construction of subgrade slope protection for high-speed railway engineering programme (CCCC)
The XX passenger dedicated line project contracted by the Second Work Area of the Project Management Department of XX Section of XX Passenger Dedicated Line of XX Public Transport Bureau is located in the middle east of XX Province, passing through two prefecture level cities (XX City, XX City), four towns (XX Town, XX Town, XX Tun Town XX Town), the starting and ending mileage of the line is changed to XX12+036.7-XX36+638.12 (including two sections of subgrade changed to XX369+400 - XX369+330.74 and XX7+941.65 - XX8+311.82), the total length of the line is about 25km, and it is a comprehensive section of bridges, stations, tunnels and subgrade. The subgrade construction sites undertaken in this work area include the following subgrade sections: XX369+330.74 - XX369+400.00, XX7+942.84 - XX8+371.03, XX12+036.7 - XX13+997.27, XX18+820.69-XX21+920.91, XX24+817.81-XX26+142.5, XX26+695.5 - XX26+980.6, XX33+056.37-XX34+730 (incomplete drawings), XX36+440-XX36 +638.18。 Slope protection mainly adopts plant protection, cast-in-place arch skeleton, prefabricated hexagonal hollow block and anchor bolt frame protection. Main quantities of subgrade slope protection: 43696m3 of arch skeleton cast-in-situ C25 concrete, 2016 m3 of C25 concrete precast blocks, 695 m3 of C30 anchor bolt frame cast-in-situ concrete, 758157 Amorpha fruticosa trees, and 9400m2 of grass planting.

Topic: High speed protection construction scheme Construction Scheme for Medium Bridge of Expressway Construction Scheme of Railway Protection Works
Special construction for prefabrication of railway engineering protective fence programme (China Railway)
1. Type of protective fence: (1) 1.8m high reinforced concrete protective fence plus 0.5m fence roll cage; (2) 2.2m high reinforced concrete protective fence plus 0.5m fence roll cage; (3) Add fence roll cage outside the 2.7m high reinforced concrete protective fence metal mesh (with corner); (4) 1.8m high reinforced concrete protective fence; (5) 1.8m high reinforced concrete column metal mesh protective fence. 2. The sections applicable to various types and the total length of the fence XXXX Intercity Railway Project Division I undertook XX uplink reroute project XX+200-XX+600, XX+300-XX+000 section, XX double line bypass XX22+317 - XX24+089 section to use 1.8m high reinforced concrete column metal mesh protective fence; For XX+692.94-XX24+085.94 section of XX main line, the type of reinforced concrete protective fence with a height of 2.2m plus 0.5m fence roll cage is used; The total length of protective fence of XX intercity railway line is 26078m, including L1=2800m of XX+200 - XX+000 section, L2=14393 of XX+692.94-XX24+085.94XX main section, L3=2488.35m across XX super major bridge, L4=47.22m across XX bridge medium bridge, L5=243.4m across XX river bridge, L6=1867.35m across XX river bridge, L7=4 * 70 * 2=560m guardrails are set at the front and rear of each bridge abutment, and L8=780.88 guardrails are set at the side slopes of the wing walls of frame bridges and culverts, XX double track bypass section XX22+317-XX24+089, L9=1772m. Total length of guardrail=L1+(L2-L3-L4-L5-L6+L9) * 2+L7+L8=26078m.

Topic: Special construction scheme for protective fence Technical disclosure of railway protective fence construction Technical disclosure of concrete protective fence
Special construction of subgrade blasting for intercity railway project programme (China Railway Construction Corporation)
The construction pipe section undertaken by the First Project Department of the Construction Headquarters of XX Intercity Railway is located in XX District and XX City, with the starting and ending mileage of XX+900 ～ XX+100, and the length of 22.2 km; There are 18 bridges in this pipeline section with a total length of 12.56km, including 10 super major bridges with a length of 10.288km and 7 major bridges with a length of 2.272km; There are three tunnels with a total length of 1.345km, including 670m, 290m and 385m XX tunnels; The subgrade is 8.295km long, with 23 frame culverts; There is one beam yard, which supplies XX+537.55 ～ XX+505 (XX tunnel entrance), 396 beams are fabricated and erected, and the length of ballastless track bed is 22.2km.

Topic: Special construction scheme for railway subgrade blasting China Railway Special Construction Scheme Special construction scheme for blasting
Construction of an electrified railway project programme
In the construction scheme of an electrified railway project, this project is the post station construction of the capacity expansion and reconstruction project of Dazhou Dazhou Dazhou Dazhou Railway. The capacity expansion and reconstruction project of Dazhou Dazhou Railway starts from Sanhui Town in the east and ends in Chengdu in the west. It is an important part of the Shanghai Wuhan Chengdu passenger transport corridor, one of the planned "four vertical and four horizontal" express routes.

Topic: Construction Scheme for Railway Electrification Reconstruction Construction scheme of electrification project Construction scheme of railway engineering
Special safety construction of high piers of super large railway bridges programme
The bridges in this section are located in XX County, XX City, and belong to XX District in the coastal area. They are mainly designed to span XX Stream, XX Provincial Highway, XX Provincial Highway, and XX Stream. Most of the pier shafts are high piers, and the main types of high piers are: double track round ended hollow piers, with the main piers of XX Bridge (5 # and 6 # piers) as the highest, and the pier height is 48.5m; Double track round ended solid pier, with the No. 2 pier of XX Bridge as the highest, 27m high; Single track round ended solid pier, with the No. 2 pier of XX Bridge as the highest, with a pier height of 31.35m.

Topic: Special safety construction scheme for super large bridge Model construction scheme for super large bridge Construction Scheme for Demolition of Super Major Bridge
Winter construction of continuous beam of newly-built railway bridge programme
There are four prestressed concrete continuous box girders in the construction pipe section of our division: the south bank super large bridge (40+64+40) m continuous girder, the Punan high-speed bridge (40+72+40) m continuous girder, the Qinkou super large bridge (40+56+40) m continuous girder and the (40+64+40) m continuous girder. Light diamond hanging basket is used for cantilever casting. The bridge sites are located at xxxx and xxx respectively. According to the meteorological data of the bridge site from 1970 to 2010, the average first frost day is December 1, and the average last frost day is February 23. The extreme minimum temperature generally occurs in January, usually between - 3 ℃ and - 8 ℃, and the lowest value in 30 years is - 8.7 ℃. In winter, the wind is northerly. According to the construction plan, continuous beams need to be constructed in winter. In order to reduce the impact of low temperature environment in winter on the construction and ensure the construction quality and progress of the project, winter construction measures are formulated according to the project conditions within the jurisdiction of our project division and relevant specifications and technical requirements.

Topic: Winter construction scheme of railway continuous beam Construction Scheme of Continuous Beam of High Speed Bridge T beam winter construction scheme
Winter construction of railway engineering programme Word version (31 pages in total)
According to the Code for Thermal Design of Civil Buildings (GB50176), Qingdao is a cold area near the Yellow Sea. It has both monsoon climate and marine climate. The temperature is high in winter, slowly warming up in spring, less hot weather in summer, and slow cooling in autumn. The annual average temperature of Qingdao is 12.3 ℃. The hottest month occurs in August. The monthly average temperature is 25.3 ℃, and the extreme maximum temperature is 38.9 ℃; The coldest month occurs in January, with monthly average temperature of - 0.9 ℃ and extreme minimum temperature of - 16.9 ℃. The maximum depth of frozen soil is 0.7m.

Topic: Winter construction scheme of railway engineering Railway engineering survey Railway engineering data