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Special Construction Scheme for Tunnel Undercrossing Community The right line of the main line of an interval tunnel crosses the 23 # building section of xx community on the side. The support parameters are: Ф 42 advance small conduit to advance the reinforcement of the 150 ° range of the tunnel crown. The circumferential spacing is 0.3m, the longitudinal spacing is 3.0m, and the external angle is 10-20 °. Seamless steel pipe with outer diameter of Ф 42mm, wall thickness of 3.5mm and length of 3.5m shall be adopted. The front end of the steel pipe is tapered -
Construction Scheme for Underpass Tunnel (Final) Yuanhua Road South Extension - The old Shuanghua Road node underpass tunnel project is located in the south of Chengdu City, and the line is north-south. It is an important node project of the municipal project of the "three vertical and one horizontal" Yuanhua Road South Extension in Tianfu New Area. The underpass tunnel starts at K9+460, ends at K9+950, and the total length of the underpass tunnel is 490m, of which the north retaining wall section is 125m long, and the south retaining wall section is 490m long -
This data is the construction scheme of the underpass tunnel The construction project of the 6th Fujiang Bridge (Yuanjiabadu Bridge) in Suining City is located in the main urban area of Suining City, Sichuan Province. The route starts about 300m west of the S306 line (Yongbei line) K7+090, crosses the Quhe River eastward, and then lays viaducts along the Hongqiao Street corridor, successively crossing the Quhe Road, Suizhou North Road, Binjiang North Road, and Hexi Flood Embankment to the west bank of the Fujiang River. The new Fujiang Bridge crosses the Fujiang River -
Construction scheme of a small spacing tunnel The inlet and outlet wall rocks are mainly loose low liquid limit clay and strongly weathered mudstone, and the lithology is loose and cataclastic; The surrounding rock in the middle is argillaceous siltstone, mudstone mixed with fine siltstone, which belongs to soft rock. It is slightly affected by the structure. The rock is weakly weathered, with slightly developed fissures - not developed, the rock mass is relatively complete, and some sections are broken, showing block masonry structure and block stone mosaic structure. -
Various construction schemes and methods for tunnels Various construction schemes and methods of tunnels Various construction schemes and methods of tunnels See the appendix for details -
Construction Scheme of Tunnel Undercrossing Expressway Xxx tunnel crosses xx expressway under DK77+660 ～ DK77+760, with a total length of 100m. The section DK77+660 ～ DK77+760 is an uphill of 3.0 ‰, and the surrounding rock is Grade V. The engineering geology is silty clay, coarse breccia soil shale, strongly weathered, broken rock mass, developed joints and poor rock mass conditions. There is bedrock fissure water in rainy season. -
Winter Construction Scheme of Hebei Tunnel 1、 Specific contents of thermal insulation for winter construction The thermal insulation shed set up at the tunnel portal is made of color steel plates. The interior is first supported by steel pipe scaffolding, and then the color steel plates are respectively fixed on the steel pipes. It is firmly set up. The front is the gate with a curtain, and the surrounding is strictly closed. The concrete can be effectively prevented from freezing only when the temperature in the shed is above 12 ℃. -
Construction Scheme for Entrance of Dalashan Tunnel The engineering geological conditions at the entrance are generally poor. The temporary side invert excavation can be sloped at 1:1.5, and the measures of supporting before entering the tunnel can be taken. The surrounding rock at the entrance section is Grade V. The excavation method is double side heading method, and large pipe shed+anchor bolt support is adopted. -
Winter construction scheme of tunnel and subgrade 1. Due to unfavorable construction conditions and environment, winter construction is the season of frequent engineering quality accidents, especially concrete engineering. -
[Fujian] Special construction scheme for a tunnel According to the requirements of the Code for Design of Highway Tunnels (JTG D70-2004), in order to facilitate the connection between the left and right tunnels and the rescue and escape in case of accidents, a transverse passage should be set between the separated left and right tunnels. In case of fire and other accidents in the tunnel, the left and right tunnels are mutual rescue and escape routes. There are 3 cross passages for vehicles and 12 cross passages in the xx tunnel of the contract section -
Construction Scheme for Fault and Broken Tunnel Crossing fault tunnels and fracture zones brings different difficulties to tunnel construction. When encountering faults and fracture zones during construction, it is necessary to first find out the dip angle, strike, width of fracture zone, rock fragmentation degree, groundwater activity and other relevant conditions of the fault, so as to correctly select construction methods and formulate construction measures, carefully analyze and study the design geological data, -
Model construction scheme of a tunnel The project has high quality requirements, many underground obstacles and main cross operations, large traffic flow, the construction site is located in a busy downtown area, with a wide range of cooperation with adjacent parties, and the construction period is tight, so the construction is difficult. -
Special construction scheme for tunnel entry The entrance of XXX tunnel is located in XX Town, XX County, XX Province. The maximum buried depth of the tunnel is 588m. The rock in the deep buried section (more than 490m) is squeezed under the action of high ground stress, which is prone to rockburst, which is adverse to tunnel construction. XXX tunnel entrance is designed as a 100km/h double track tunnel, and the inner contour adopts "Tunnel (civil engineering and ventilation) SIVF-1-1" -
Special construction scheme for multi arch tunnel This data is the special construction scheme of multi arch tunnel, and the content is shown for the reference of netizens. -
Construction scheme of rock burst geological tunnel The data is the construction organization scheme of rock burst geological tunnel, which is complete and worth reference and can be downloaded by designers. -
Construction scheme of headrace tunnel The construction scheme of the headrace tunnel is rich and detailed, and can be downloaded for reference and study by netizens. -
Construction Scheme of Tunnel Secondary Lining The tunnel special waterproof roll is set between the tunnel shotcrete and the formwork concrete. Before laying the waterproof layer, a buffer layer is laid on the shotcrete surface. The buffer layer is made of 300g/m2 geotextile, and then the tunnel special waterproof roll is laid. The laying method is as follows: foundation surface inspection: use the working platform to cut the exposed anchor bolts, steel bar heads and other iron parts of the support, and use mortar to plaster them into a circular surface to prevent them from puncturing -
Construction scheme information of a tunnel There is one tunnel (Tiesuoguan Tunnel) in the contract section, which is an integral double arch tunnel with a central wall. The total length of the tunnel is 257m, and the tunnel clearance (width × height) is 2 × 9.75 × 5m. The tunnel is located in a circular curve with a radius of R=3435.91m. The tunnel is argillaceous siltstone with sandy mudstone, and the surrounding rock is classified as Class II. The underground water of the tunnel mainly comes from -
Construction scheme of a multi arch tunnel Construction scheme of double arch tunnel Construction scheme of double arch tunnel Construction scheme of double arch tunnel Construction scheme of double arch tunnel -
Blasting construction scheme of diversion tunnel According to the reply of Yuzhong County Development and Reform Bureau on the feasibility study report of Qingcheng Town Irrigation Water Source Project (YFGG [2016] No. 230), the total irrigation area of the project is 11400 mu, including 3200 mu for gravity irrigation, 4400 mu for low lift irrigation and 3600 mu for high lift irrigation. The total construction period is 12 months. Main construction contents include diversion tunnel -
Summary of various construction schemes and methods for tunnels Various construction schemes and methods for tunnels Various construction schemes and methods for tunnels -
Construction Scheme of Zhujiang New Town Tunnel Zhujiang New Town Tunnel Construction Scheme.doc, with detailed contents, can be downloaded by netizens for reference. Guangzhou Zhujiang New Town Road Project Jinsui Road Huaxia Road Pedestrian Tunnel No. 8 Tunnel Project is located at the intersection of Jinsui Road and Huaxia Road in Zhujiang New Town, including an open circular underground square and four corner pedestrian tunnels. -
Construction Scheme of a Tunnel at Tizi Mountain Construction scheme of a tunnel at Tizi Mountain Construction scheme of a tunnel at Tizi Mountain Construction scheme of a tunnel at Tizi Mountain -
[Hainan] Tunnel Blasting Construction Scheme_ XX Tunnel of XX East Railway is located in XX Town, XX City. There are no large buildings around the construction site, which is conducive to tunnel construction. 2. Project overview XX tunnel has a total length of 2525m, and the excavated fault surface reaches 152m2, including 280m of Grade III surrounding rock, 400m of Grade IV surrounding rock, 1085m of Grade V surrounding rock, and 760m of open cut section. 3. Tunnel excavation construction method -
[Hebei] Tunnel construction scheme in winter_ To ensure the quality, progress and safety of winter construction of Contract Section LJ-S10 of Baoding Section of Zhangjiakou Zhuozhou Expressway. According to the construction period requirements, the main construction contents in the winter of 2012 are: excavation of the underground tunnel at the exit of Nanyu Tunnel, initial lining, leveling layer construction, secondary lining construction, cable trough construction, and portal construction; Construction of Zhuangzi tunnel portal. -
Construction plan of tunnel organization in a city Smooth blasting of upper bench and presplitting blasting of lower bench are adopted for stone tunnels, and over excavation is strictly controlled. For soft rock and broken rock stratum, the excavation principle of shallow hole multi circulation, advance support, strong support and early closure shall be implemented. -
Construction scheme of a small spacing tunnel The tunnel is a small spacing tunnel with a single length of 582m. The maximum burial depth is 48m, the portal wall is poured with C20 concrete, and the pavement inside the tunnel is made of 240mm thick cement concrete -
Special construction scheme tunnel blasting Hexi Tunnel is located in Xiuning County, Huangshan City, Anhui Province. The tunnel is low on both sides and high in the middle. The terrain fluctuates greatly, with the highest elevation of about 535m. The landform is dominated by middle and low mountains. The vegetation along the line is mainly young trees, shrubs and weeds, which grow densely. The cultivated land is mainly alluvial land with a small amount of dry land. -
Construction Scheme of a Tunnel in Liushugou The groundwater is mainly bedrock fissure water, which is directly recharged by atmospheric precipitation and discharged to the river valley by seepage. The predicted water inflow of the tunnel is 89.8m3/d, the underground water has little impact on the tunnel project, and there is water dripping during construction. The terrain at the entrance and exit of the tunnel is relatively gentle, the natural slope is stable, and there is no adverse geological phenomenon such as collapse and landslide. The engineering geological condition of the entrance slope is good -
Construction Scheme of a Tunnel in Liaoning Province The surface of the tunnel entrance section is a gentle slope landform, with a terrain slope angle of 3 °~7 °. The terrain is relatively flat and open, belonging to a shallow buried section. The surface of the tunnel exit is a steep slope landform with a terrain slope angle of 36 °~38 °. The terrain is relatively steep and the construction site is relatively narrow. Therefore, the tunnel concrete mixing station is set with a 75m3/h mixing station at the tunnel entrance and a 50m3/h mixing station at the exit. -
Construction Scheme for Auxiliary Cavern of a Tunnel The starting and ending mileage of a tunnel is YDK403+585 ～ YDK408+286, with a total length of 4701m. The line is designed to be one-way uphill with a gradient of 10.3 ‰. The main lithology in the tunnel is marlstone, argillaceous limestone, limestone interbedded, shale and coal seam, and diabase intrusions are exposed in some sections. The main surrounding rock type of tunnel body is Class III 3780 -
Tunnel body excavation construction scheme 1 Huangxi Tunnel is located in Bashan, Chengkou County, with the starting and ending stake numbers of K17+790 ～ K18+440 and a total length of 650m; The designed pavement elevation is 729.259m. Longitudinal gradient - 2.0%. The tunnel interface size adopts the form of three center circle inner contour, the tunnel span is 7.68m, the tunnel height is 6.2m, and it is a single tunnel two-way Class IV highway tunnel. Design running speed -
Special construction scheme for tunnel karst The tunnel is located in Zezhou County, Jincheng City, with the entrance mileage of DK302+700 and the exit mileage of DK316+121, with a total length of 13421m. The plane position of Jueshan tunnel line is shown in the figure below. -
Special construction scheme for highway tunnel Catalog 1. Tunnel overview 3. Overall construction scheme of tunnel works 3. Construction of portal and open cut tunnel works 4. Advance large pipe shed support construction 9. Advance conduit support construction 13. Advance anchor rod construction 15. Tunnel excavation 15. 8. Initial support 24. Invert arch and floor construction 31. 10. Waterproofing and -
Special construction scheme for gas tunnel Yan'an Tunnel is located from Jianhua Town, Ansai County, Yan'an City, Shaanxi Province to Liangcun Township, Baota District, Yan'an City. The nearby villages are Shegou Village, Sanglinwan Village, Jianhua Town, Zhangjiagou Village and Sigou Village, Liangcun Township. The tunnel entrance mileage is DK305+100, the exit mileage is DK314+298, the total length of the tunnel is 9198m, and the maximum burial depth of the tunnel is 228.3m. Our work area undertakes Yan'an -
Tunnel lining construction scheme Dayaoding Tunnel is designed as a double hole, double track and small clear distance tunnel. The design starting and ending mileage of the left track is K165+925 ～ K166+470, with a total length of 535m. The maximum burial depth of the tunnel is about 62.23m. The starting and ending mileage of the right track is K165+930 ～ K166+465, with a total length of 535m. The maximum burial depth of the tunnel is about 131.15m. It belongs to medium tunnel and is small net -
Construction Scheme for Tunnel Reinforcement Construction Scheme for Tunnel Reinforcement -
Construction Scheme for Tunnel Karst Cave Treatment According to the regional structural data, F15 and F16 faults are mainly developed near the site, which are briefly described as follows: -
Tunnel shotcrete construction scheme Tunnel building boundary: the width of the carriageway is 3 × 3.75m, the width of the left side is 0.5m, the width of the right side is 1.0m, the width of the left side maintenance road is 0.75m, the width of the right side maintenance road is 1.0m, and the clear height is 5m. Z5-1 and Z5-1 (b) wet shotcrete of this tunnel are C25 early strength concrete with a thickness of 30cm, and Z4-1 (b) wet shotcrete -
Construction Scheme for Reconstruction of Yinwamo Tunnel The existing Yinwamo tunnel is a short tunnel on the Tianlan Line, which was constructed by the 12th Joint Operation Engineering Team in 1952 and then used by the Baolan Line 2. The Lanzhou hub project passes double deck container goods, but the clear height above the rail surface of the Yinwamo tunnel is about 6.0m, which does not meet the clearance height for passing double deck containers (the minimum height is 7.82m). The height of rail surface remains unchanged
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one Construction unit price of tunnel fireproof coating -
two Quotation for tunnel fire retardant coating construction -
three How to construct tunnel coating -
four Construction Scheme of Municipal Underpass Tunnel -
five Special construction scheme for underpass tunnel -
six Construction scheme of pump station for underpass tunnel -
seven Construction Scheme for Tunnel Undercrossing Road -
eight Construction Scheme for Tunnel Undercrossing Railway