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Analysis of waterproof construction scheme for open cut tunnel The main structure of D1K178+570~+870 tunnel is lined with straight wall and flat bottom arch shaped open cut tunnel. The arch, side wall and bottom plate of the whole tunnel lining are made of waterproof concrete, and the impermeability grade is not lower than P8. The whole tunnel is fully waterproof, the outer edge of lining is paved with self-adhesive waterproof boards, the arch is single-sided self-adhesive waterproof boards, the side wall and bottom plate are double-sided self-adhesive waterproof boards -
[Chengdu] Waterproof construction scheme of open cut airport tunnel The main structure of D1K178+570~+870 tunnel is lined with straight wall and flat bottom arch shaped open cut tunnel. The arch, side wall and bottom plate of the whole tunnel lining are made of waterproof concrete, and the impermeability grade is not lower than P8. The whole tunnel is fully waterproof, the outer edge of lining is paved with self-adhesive waterproof boards, the arch is single-sided self-adhesive waterproof boards, the side wall and bottom plate are double-sided self-adhesive waterproof boards -
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. -
Final construction scheme for formwork support of open cut tunnel The side wall of the main structure is supported by triangular truss and fixed by anchor bolts. The top plate is supported by a red scaffold. The side wall and top plate panels are made of 18mm thick composite wood plywood. Bowl buckle scaffold shall be used for plate support, and the density of vertical pole of roof support shall be 0.6 × 0.9m. Cross bridging shall be set on the horizontal and vertical surfaces of the scaffold system for reinforcement, as shown in the following chapters. -
Construction organization design and construction scheme of open cut tunnel In accordance with the technical standards, geological data and detailed data of surrounding buildings, ground and underground pipelines specified in the design, the project strictly and carefully completes the deep foundation pit construction organization design (including the monitoring measures of the surrounding environment) and construction operation procedures, and formulates corresponding emergency measures for water leakage and slope instability that may be encountered during excavation. -
Special construction scheme for steel support of open cut tunnel foundation pit Special construction scheme for steel support of foundation pit of open cut tunnel The plane position of the tunnel is near XXXX, Jieyang City. The tunnel is divided into two sections, open cut and concealed construction. The mileage of the starting section from the entrance to XXXX station is DK110+820~DK112+662.269, with a length of 1842.269m. The starting section from the end of XXXX station to the exit section DK113+248.2 -
Waterproof construction scheme and quality control of cable tunnel This section is the L2 line of the project, and the electric power stake numbers are 1+960-2+616.4, 2+779.6 - 2+955.3, 3+042.4 - 3+290 sections of the electric power tunnel. Among them, 1+960-2+260 sections adopt the shallow buried excavation construction method, and the main line structure is 2.6 m × 2.9 m single hole composite lining structure, 300 m long -
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. -
SBS waterproof construction scheme of a project The project has one underground floor and four underground floors. The foundation form is a combination of reinforced concrete raft foundation and strip foundation, reinforced concrete frame structure, with a building area of 4221m2 above ground, 1055m2 underground, a total building area of 5276m2, the highest point of the building of 17.4m, and a height of 4.2m, 3.3m, and 3.4m above ground. Underground I -
Roof waterproof coiled material construction scheme A project has a building height of 30.9m, one floor underground, eight floors above the ground (nine floors locally), and a building area of 21772 m2. The full frame class II office complex building is a flat thermal insulation coiled material accessible roof with an area of about 5000 ㎡, many layers, many nodes, and internal gutters. It is difficult to construct. In order to ensure that the roof and gutters do not leak, it is crucial to the construction quality of coiled material waterproofing, -
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 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: -
Construction scheme of a tunnel access road 1. The height difference between the original access road and the portal is too large. The end of the existing No. 3 access road is below the portal of a tunnel, and the height difference with the portal pavement is 15.4m. It must be extended to the portal pavement. The retaining wall at the end of the access road collapsed, making it difficult to restore it; 2. After surveying and setting out, the position of the 3 # abutment on the left track of a bridge is at zk116+989.75 -
Construction scheme of bamboo cutting open cut tunnel of a tunnel Xx tunnel is one of the key control projects of xx highway. The tunnel is located in the separated subgrade section and is set as the up and down left and right line tunnels. The distance between the portal lines is 39 meters, of which the left line tunnel is 4090 meters long and the right line tunnel is 4060 meters long. xx is responsible for the construction of the tunnel entrance direction (left line L=2550 m, right line length=2515 m), and xx is responsible for the construction of the tunnel exit -
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 -
Waterproof construction scheme of a project in Chengdu （2） Operation condition 1. The base course (insulation layer, leveling layer) for laying the waterproof layer shall be completed, inspected and accepted, and the acceptance procedures for concealed works shall be completed. The surface shall be cleaned, the residual mortar hard blocks and protruding parts shall be removed, leveled, repaired and polished; The internal and external corners shall be made into arc or obtuse angle; The connection between the roof and the protruding roof structure should be made with a radius of 10 -
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 -
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 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 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 of rigid waterproof roof At present, rigid and flexible waterproof methods are mostly adopted. Rigid waterproof is easy to crack and leak due to temperature difference and strain; Flexible waterproof, mostly organic materials such as asphalt and linoleum, easy to aging and short life. -
Special scheme for open cut tunnel construction This data is a special plan for open cut tunnel construction, with a total of 60 pages, which is detailed and accurate, and is only for reference. -
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 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 -
Roof waterproof technical construction scheme Roof waterproof technology construction scheme Roof waterproof technology construction scheme Roof waterproof technology construction scheme -
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" -
Waterproof construction scheme of National Theatre 1. Waterproof project overview Waterproof project is one of the key points of the project quality control. During the construction, strict monitoring and management shall be carried out, and practical waterproof construction measures shall be taken to ensure the quality of waterproof construction. There are many corners and joints in the basement, and there are many deformation joints, construction joints, post pouring strips, through wall pipes and other special parts. The daughter wall flashing, rainwater outlets, roof internal corners, sanitation -
Classic roof waterproof construction scheme According to the architectural design, the project is divided into two sections, I and II. Section I is a four storey distribution building with a roof area of about 330m2; Section II is a ten storey main building with a roof area of about 1230m2. The roof of section II is scattered, including standard floor roof (elevation 41.800), water tank room roof (elevation 44.000), elevator machine room roof (elevation 46.000), 5# -
Underground waterproof construction scheme of a project The underground waterproof construction scheme of a project has detailed description, which can be used for reference and download. -
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 -
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. -
Waterproof construction scheme of fire pool JS cement-based waterproof coating+polyethylene polypropylene fiber, this practice abandons the common practice of SBS high polymer modified asphalt roll, because the fire pool is relatively closed, this process is used instead, which meets both construction requirements and safety requirements. -
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 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.
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one Auxiliary construction scheme of open cut tunnel -
two Civilized construction scheme of open cut tunnel -
three Construction scheme of municipal open cut tunnel -
four Construction scheme for secondary lining of open cut tunnel -
five Construction scheme of open cut power tunnel -
six First piece construction scheme of open cut tunnel -
seven Formwork construction scheme of open cut tunnel -
eight Special construction scheme for open cut tunnel