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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: -
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 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. -
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 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. -
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. -
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 -
[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 of headrace tunnel The construction scheme of the headrace tunnel is rich and detailed, and can be downloaded for reference and study by netizens. -
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" -
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 -
[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. -
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 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 -
Special construction scheme for crossing railway Our project department undertakes all construction tasks, with the starting and ending stake numbers from N1 to N42. The total length of this construction section is 13.009km, and there are 42 iron towers in total. The project is a double circuit, including 23 tangent towers, 2 terminal towers, 8 steel pole towers and 9 tension towers. The highest tower in this section is 61.4m. The lightest tower is 10.7845t, and the heaviest tower is 64.9 -
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 -
Summary of various construction schemes and methods for tunnels Various construction schemes and methods for tunnels Various construction schemes and methods for tunnels -
Special construction scheme for karst cave treatment The starting and ending mileage of the tunnel project between Nanguanling Town Station and Nanguanling Station of Dalian Metro Phase I Project is DK39+493.801 ～ DK40+951.924, with a total length of 1458.813 meters. The main construction task of Lot 204 is DK40+093.801-DK40+951.024, with a total length of 857.2 -
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 -
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. -
Construction Scheme of Dalian Metro Karst Cave Construction Scheme of Dalian Metro Karst Cave -
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. -
Construction Scheme of Highway Gas Tunnel Table of Contents Chapter I Background of Scheme Preparation ――――――― 3 Chapter II XX Gas Tunnel Special Construction Scheme ―― 41. Establishment of XX Tunnel Gas Work Area Construction Management Organization ―― 42. Construction Ventilation ―― 5 III -
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 plan of tunnel organization in a city The 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. -
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 Qiling Tunnel Support The new Qiling Tunnel of Ganzhou Shenzhen Railway is located in Xiaojinkou Street, Huizhou City, Guangdong Province. The entrance and exit mileage of the tunnel is respectively DK354+520 ～ DK354+846, with a total length of 326m. The boundary mileage of the light and dark tunnels is respectively DK354+576 and DK354+811. The entrance and exit of the tunnel are hat brim oblique cut portal (entrance L=18m, exit -
Special safety construction scheme for tunnel Special safety construction scheme for tunnel -
Special construction scheme for tunnel ventilation There are four tunnels in this contract section, namely Wubixi Tunnel (819m), Aiping Tunnel (892m), Xikouwei Tunnel (629m) and Xiucun Tunnel (2724m). 1) Wubixi Tunnel is a separate tunnel with curved section. The horizontal curve radius of the left line is 1490 meters, and the right line is 1400 meters. The stake number at the entrance of the right track is YK154+461 -
Tunnel excavation and support construction scheme The tunnels in this section are located from Zhupingpu Township to Tuqiao Township, Zhijiang County, Hunan Province, including four tunnels, namely, Yangjiawan 1, Yangjiawan 2, Zhaojiawan 1, and Zhaojiawan 2. The main line is 5614m long. The project overview of each tunnel is as follows: -
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 -
Construction Scheme of a Tunnel in Chongtian Yuanzi Chongtianyuanzi Tunnel is an important part of the first contract section of Chongqing Songji Yangtze River Water Lifting Project, and also a key control project of our contract section. The starting mileage of the tunnel is K10+043.38, and the ending mileage is K10+201.35. The cross section of the tunnel body is circular, with a diameter of D2000.
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one Construction Scheme for Crossing High Speed -
two Special construction scheme for crossing frame -
three Construction scheme of karst cave pile foundation -
four Construction scheme of pile foundation karst cave -
five Sand blowing construction scheme for tunnel karst cave -
six Grouting construction scheme for tunnel karst cave -
seven Construction Scheme for Tunnel Karst Cave Plugging -
eight Construction Scheme for Tunnel Karst Cave Treatment