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Special construction scheme for Aiba tunnel lining This construction scheme focuses on "detailed description, easy understanding, easy acceptance, safety and quality assurance", and is prepared in accordance with the guiding ideology of "feasible construction scheme, advanced construction technology, reasonable construction organization, appropriate measures and strong guarantee" and the following principles. -
Special construction scheme for Aiba tunnel lining Aiba Tunnel is a separated long tunnel, with the starting and ending stake numbers of ZK22+280 ～ ZK23+430 on the left line, and the total length of 1150m, including 900m of Grade IV surrounding rock and 240m of Grade V surrounding rock; The starting and ending stake numbers of the right line are YK22+280 ～ YK23+480, with a total length of 1200m, including 930m for Grade IV surrounding rock and 260m for Grade V surrounding rock; Portal type -
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 -
Special construction scheme for tunnel excavation Jinshan Tunnel belongs to hilly landform with large topographic relief. The natural slope gradient at the entrance and exit is about 23~33 °. The surrounding rock of the tunnel body is tuff lava of Jurassic Nanyuan Formation, which belongs to hard rock. The rock mass is generally relatively complete, which is favorable to the stability of the surrounding rock of the tunnel body. The stability of the surrounding rock of the tunnel portal is poor, so support and detection measures should be strengthened during excavation -
Special construction scheme for tunnel secondary lining The tunnel is designed according to the principle of the New Austrian Tunneling Method, and the structure is a composite lining type composed of anchor, mesh, shotcrete and steel arch frame, which combines the initial support with the secondary formwork concrete; C30 waterproof concrete is used for the secondary lining, and the impermeability grade is not less than S8. Ordinary C25 concrete is used for inverted arch. The inner contour of the tunnel main tunnel and emergency parking area is generally in the form of three center circle and curved side wall; Arch wall adopts 1.5mm thick composite type -
Special Construction Scheme for Jinfeng Tunnel Shaft Excavation This section is the MZTJ-4 contract section of Phase I civil works of Yicheng Baokang section of Hubei Mazhu Expressway. The starting and ending mileage of the line is K90+302~K99+900, with a total length of 9.598km. Jinfeng Tunnel is a separate tunnel, left tunnel ZK98+678~K101+045, 2367m long, right tunnel YK98+650 -
Special construction scheme for tunnel excavation Xinwu Tunnel passes through structural denuded hills. The starting and ending mileage of the left line tunnel is ZK83+926 ～ ZK86+427, with a length of 2501m. The portal at the inlet end is of bamboo cutting type. The design elevation of the portal at the outlet end is 354.471, and the portal at the outlet end is of bamboo cutting type. The design elevation of the portal is 296.948m, the gradient is - 2.3%, and the maximum burial depth of the tunnel is about 226.3m; -
Special construction scheme for tunnel secondary lining This contract is the XXXXXXXXXXXXXXXXXXXXXXXXXX contract section, with a total length of 7.113km. XX tunnel is a separate tunnel. The starting and ending stakes of the right line are K64+252 ～ K67+162, with a total length of 2910m, including 1670m for Grade III surrounding rock, 930m for Grade IV surrounding rock, and 310m for Grade V surrounding rock; Left line starting and ending stake No. ZK6 -
Special construction scheme for secondary lining of highway tunnel The contract is the XXXXXXXXXXXXXXXXXXXXXXXXXX contract section, with a total length of 7.113km. XX tunnel is a separate tunnel. The starting and ending stakes of the right line are K64+252 ～ K67+162, with a total length of 2910m, including 1670m for Grade III surrounding rock, 930m for Grade IV surrounding rock, and 310m for Grade V surrounding rock; Left line starting and ending stake No. ZK64 -
[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 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 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 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. -
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 -
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. -
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 -
Special construction scheme for 3-5km tunnel Shigushan Tunnel is located near Jintao Town, Nan'an City. The starting and ending stakes are ZK7+643 ～ ZK13+648 (6005m long) on the left and YK7+647 ～ YK13+652 (6005m long) on the right. The tunnel and A2 section are divided at the left line ZK10+480 (the right line YK10+500) for about half of their construction -
Special construction scheme for blasting of a tunnel The Mashan Tunnel starts from Yangfantian Village, Houzhai Town, Yiwu City, Zhejiang Province and ends at Maodianqiao Village, Houzhai Town, Yiwu City. The starting and ending mileage of the Mashan Tunnel is K312+680 ～ K316+269 (DK114+900 ～ DK118+489), with a total length of 3589m and a maximum burial depth of 244m. Mashan Tunnel is adjacent to the existing Yiwu Tunnel of Shanghai Kunming Railway, and the entrance end is -
Construction scheme for tunnel excavation Shiyaowan Tunnel 2 is located in the south of Shiyao Village, Yebao Town, Qin'an County, Gansu Province. The tunnel runs through the mountain on the left bank of Hulu River. The entrance is arranged on the hillside on the east side of G207 National Highway, and the exit is arranged on the hillside about 20m on the east side of G207 National Highway. The tunnel entrance and exit are adjacent to G207, so the traffic is convenient. Left line tunnel is 1488m long (ZK171+295 ～ ZK172 -
Special construction scheme for tunnel invert secondary lining The length and form of the tunnel, and the main surrounding rock grade. The vehicle crosswalk and pedestrian crosswalk are arranged. Tunnel construction clearance, height of construction clearance. Tunnel construction clearance of emergency parking area, height of construction clearance. Construction clearance of crosswalk. Clearance of pedestrian crossing tunnel. -
Special construction scheme for tunnel lighting This project is: the 2017 Rural Road Safety and Life Protection Project in Wencheng County (Yihua Line Xiekou Tunnel, Wenqing Road Daxueling Tunnel, Guangming Tunnel, Lishan Tunnel Lighting Energy Saving Reconstruction). -
Special construction scheme for mountain tunnel The construction of Hangzhou Zizhi Tunnel (Zijingang Road Zhijiang Road) Civil Engineering Lot II is mainly composed of four parts, namely, the main tunnel, the south ramp, the ramp connection road and the tunnel management room. The main tunnel is K1+530~K3+550 on the west line of tunnel 1 #, with a length of 2020m, and K1+570~K3+555 on the east line of tunnel 1 #, with a length of 1 -
Special construction scheme for composite lining tunnel with bolt shotcrete support For the xxxxx project, the main line starts at K6+600 of xx highway and starts at K0+000. The line is laid along the mountains and lakes in the northwest, along the outside of xx and xx villages. The new xx bridge crosses Qiandao Lake, the xx tunnel passes through Tuogao Mountains, and the rest is laid along the existing xx highway, ending at about K13+000 of xx highway (i.e. Zhufengkou Jinfeng -
Special construction scheme for separate tunnel excavation Bailongshan Tunnel is located in Yushe Township, Shuicheng County, Liupanshui City. It is a separate tunnel with a total length of 4025m and a maximum buried depth of 328m. Our bid section is the second half of Bailongshan Tunnel. The exit portal of Duge section is end wall type. The starting and ending stakes of the right line are K202+650-K204+675, with a total length of 2025m. The exit section is curve R-900, and the longitudinal slope is -1.54 -
Special construction scheme for tunnel excavation of highway reconstruction tunnel 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 secondary lining of separated tunnel This contract is the XXXXXXXXXXXXXXXXXXXXXXXXXX contract section, with a total length of 7.113km. XX tunnel is a separate tunnel. The starting and ending stakes of the right line are K64+252 ～ K67+162, with a total length of 2910m, including 1670m for Grade III surrounding rock, 930m for Grade IV surrounding rock, and 310m for Grade V surrounding rock; Left line starting and ending stake No. ZK6 -
Special construction scheme for the first piece of tunnel excavation The scope of preparation of the construction scheme of this first project is Chixi Tunnel excavation project of the second contract section of Majitang Anhua Expressway in Hunan Province: excavation of Class V surrounding rock tunnel body K13+600-K13+603, excavation of Class IV surrounding rock tunnel body K13+696.5-K13+699.5, and excavation of Class III surrounding rock tunnel body K14+090-K14+093. -
Special construction scheme for tunnel excavation Bailongshan Tunnel is located in Yushe Township, Shuicheng County, Liupanshui City. It is a separate tunnel with a total length of 4025m and a maximum buried depth of 328m. Our bid section is the second half of Bailongshan Tunnel. The exit portal of Duge section is end wall type. The starting and ending stakes of the right line are K202+650-K204+675, with a total length of 2025m. The exit section is curve R-900, and the longitudinal slope is -1.54 -
Special construction scheme for tunnel initial support and secondary lining safety Special construction scheme for tunnel primary support and secondary lining safety (final version) Special construction scheme for tunnel primary support and secondary lining safety (final version) -
Special construction scheme for lining reinforcement of tunnel works XX dam tunnel is a single hole separated tunnel, and the left line is located on the left turning circular curve. The left tunnel starts from ZK18+564 to ZK18+804, with a total length of 240m and a longitudinal slope of -2.95%. The landform of XX dam tunnel belongs to the tectonic denudation middle mountain landform. The mountain is steep and the valleys are crisscross, presenting the natural landscape of mountains and valleys. In general, the mountain trend -
Special construction scheme for secondary lining of tunnel works There are Longwuxia Tunnel 4 and Longwuxia Tunnel 5 in this section, with a total length of 7191m. The specific situation is as follows: Longwuxia Tunnel 4 is located in the tectonic denuded middle mountain landform area, outside the west wing of the arc fold belt of the Qilu Helan Mountain shaped structural system, and the line is located in the Jianzha Tongren depression belt, with relatively developed fold faults. The general elevation of tunnel site area is 2195~2510m -
Special construction scheme for the first piece of tunnel excavation This contract section is the second contract section of Majitang Anhua Expressway, located in Anhua County, Yiyang City, starting from K9+260 (ZK9+263.624), Yunling Village, Yangjiaotang Town, Anhua County, and ending at K20+040, Jinhu Village, Lengshi Town, Anhua County, with a total length of 10.781km. Chixi Tunnel is located in Yeyatang Village, Anhua County, and its landform belongs to low mountains and hills -
Word for special construction scheme of highway reconstruction tunnel excavation 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 excavation (complete content+layout) Jinshan Tunnel is located at * * Mountain, * * Town, * * County, * * City. It is a separate tunnel on the expressway from * * to * * connection line of the expressway network in the economic zone on the west side of the Straits - Anxi section of Quanzhou. The design load class is highway I. Jinshan Tunnel belongs to hilly landform with undulating terrain. The natural slope gradient at the entrance and exit is about 23~33 °. The surrounding rock of tunnel body is Jurassic Nanyuan Formation -
Construction Scheme for Secondary Lining of Baishaoyang Tunnel Construction Scheme for Secondary Lining of Baishaoyang Tunnel -
Special construction scheme for tunnel safety The special construction scheme for tunnel safety, a very comprehensive special construction scheme for tunnel safety, is worthy of reference.
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one Safety construction scheme for tunnel body -
two Special construction scheme for tunnel excavation -
three Special construction scheme for tunnel safety -
four Tunnel lining reinforcement construction scheme -
five Tunnel lining thickening construction scheme -
six Construction Scheme of Subway Tunnel Lining -
seven Tunnel lining grouting construction scheme -
eight Tunnel lining replacement construction scheme