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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: -
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 -
Special construction scheme for soft foundation treatment This paper introduces the concrete scheme of the construction of powder jet pile and drainage board to reduce the subgrade settlement in the construction scheme. -
Special construction scheme for embankment foundation treatment The special construction scheme for embankment foundation treatment is to remove the obstacles within the red line, remove the unqualified soil, sundries, sludge on the surface, and drain the original surface water. Before removing the sludge, the depth and nature of the sludge shall be explored, and safety technical measures shall be taken. The depth of foundation clearing shall not be less than 0.3m, and the removed spoil, sundries, waste residue, etc. shall be transported to the designated site for stacking. The topsoil of the existing embankment must be removed -
[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 -
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 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 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 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 multi arch tunnel This data is the special construction scheme of multi arch tunnel, and the content is shown for the reference of 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" -
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 -
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 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 pile foundation treatment This project includes 6 prison buildings, 1 confinement room and kennel, 1 hospital and the enclosure of the supervision area; The objects of the second survey are education and learning rooms, command center and standby rooms, family meeting building, AB door, registration room, passageway, guard room, supervision area and administrative area walls. The total aboveground building area is 34854.4m2, the building floor area is 9859.3m2, and the underground -
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 Golsi Tunnel Golsi Tunnel is a two-way super long single hole tunnel, and the parallel tunnel is provided with a through parallel heading (referred to as horizontal heading for short) as a ventilation duct and rescue channel. The main tunnel mileage is 2770m from K11+900 to K14+700, and the parallel pilot tunnel mileage is 2787m from PK11+913 to PK14+700. The total length of the double tunnel is 5557m. Tunnel setting 3 -
Special construction scheme for subgrade soft foundation treatment Zunyi North Ring Expressway (Mengziqiao Leli Section) is an important part of Zunyi Ring Expressway in Guizhou Provincial Expressway Network Planning, and is the connecting line project of Lanhai Expressway and Hangzhou Ruili Expressway in Zunyi City, the national expressway network. It will improve the regional road network, form Zunyi traffic hub, and expand the development space of Zunyi downtown, Accelerate regional urbanization and industry -
Special Construction Scheme for Lujiaba Tunnel Entry Lujiaba Tunnel 1 is located about 600m south of Xuantan Village, Jiangkou Town, Liuba County, Hanzhong City. The tunnel is designed as separate left and right tracks. The left line tunnel is 230.00m long, with the entrance chainage of ZK146+060 and the exit chainage of ZK146+290; Right line tunnel entrance stake number YK146+020, exit stake number YK146+290 -
Special construction scheme tunnel blasting (1) K25+561 ～ K25+750 (189m of Grade V surrounding rock) The surrounding rock is mainly eluvial silty clay, strongly and moderately weathered tuff and fault fracture zone. The engineering property of silty clay is poor. The lithology of strongly weathered tuff is soft, and the lithology of moderately weathered rock is hard. Affected by faults, the rock mass is broken~extremely broken. The groundwater type is mainly bedrock fissure water, and the water volume is poor -
Special construction scheme for shallow buried tunnel The starting point of Lot II of Huandao Road (Aoshan Road Gaodian No. 2 Road Section) Project is under Haidi Road, and the ending point is connected to the left and right auxiliary roads of Xinglin Bridge in the direction of Chang'an Road. The stake number range is ZK1+738 ～ ZK2+870, YK1+740～YK2+892.270， The total length of the line is 1.152km. The tunnel works of this project are the control works of the whole project, -
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 low gas tunnel The MHSS-1 bid section of the key control project of the new Mengxi Central China railway coal transport corridor is located in Yanchang County, Yan'an City, with the starting and ending mileage of DK379+531 ～ DK391+427, and the total length of 11.896km. Yangshan Tunnel, as the key control project of this section, is a single hole double track tunnel with a total length of 11.668km -
Special construction scheme of Guangshan Tunnel -- the latest (1) Jinning Hongta Expressway is an important part of the infrastructure construction of Kunming and Yuxi. The implementation of the project has made the road networks of Kunming and Yuxi more perfect. It is one of the important regional road networks of the two cities, an important part of Yuxi Ring Expressway, and an important section of Kunming Moxi Expressway. The starting station of the expressway route is K0+ -
Special construction scheme for tunnel with unfavorable geology Two tunnels are arranged in this contract section, namely XX tunnel (the second half) and XX tunnel (the first half). 1. XX Tunnel is a four lane expressway tunnel with left and right lines separated, located in the east of XX Village, XX Township, XX County, XX Province. The starting and ending stake number of the left line of the tunnel is ZK+130-ZK4+725, with a total length of 595m, which belongs to a medium stone tunnel. Right line -
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 highway tunnel penetration Tuliling Tunnel of Phase I Highway Reconstruction Project of Heishidu Daoshichong Section of Provincial Highway 318 is a single hole two-way road tunnel. The highway class is Class II highway. The mileage of the tunnel is K33+725 ～ K35+863, with a length of 2138m. It is located on a curve without superelevation. The radius of the circular curve is 600m and 1000m respectively. Double sided slopes are used. The longitudinal plane of the tunnel is two-way -
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 -
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. -
Special Construction Scheme for Nanhan Tunnel Portal Nanhan Tunnel is a separated long tunnel, with the starting mileage of ZK1+810 and the ending mileage of ZK4+220 on the left side, and the total length of 2410m; The right side starts at K1+750 and ends at K4+215, with a total length of 2465m and a total length of 4875m. R1=5.5m clearance lining section is adopted, with inner contour clearance width of 11.0m and clearance height of 7 -
Special construction scheme for large deformation of tunnel The inclined shaft work area of Changping Tunnel belongs to the high and middle mountain tectonic denudation landform. The surface is covered with silty clay and breccia soil of slope eluvium with a thickness of 0~8m, and some parts are thicker. The underlying bedrock is Triassic schistose basalt, and some parts are mixed with tuff. The geological structure of the survey area is complex, the neotectonic movement is strong, and the surface is not developed. It is mainly slope groove water, and the groundwater is relatively developed, It is mainly bedrock fissure water, -
Special construction scheme for tunnel excavation (revised) YQZQ-10 The starting and ending mileage of our department is D1K239+355.98~D1K290+554.27, which is located between Goujiang, Zunyi City and Xifeng County, Guiyang City. The main line is 51.198km long. It includes 26 tunnels with a total length of 17545m. It belongs to the central and eastern edge of Yunnan Guizhou Plateau, with an altitude of 800-1000m -
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 tunnel invert and 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 construction Hongwen Tunnel is located in Lijiang City, Yunnan Province. The tunnel is located in the middle and lower part of the mountain slope, belonging to the tectonic erosion and dissolution middle mountain landform area. The terrain is relatively steep. The surrounding rock structure of the tunnel is basically limestone. The possibility of karst is mentioned in the design drawings and instructions. The groundwater level within the construction scope is deep, Through field survey and communication with local villagers, it is known that the groundwater level is about 500 meters -
Temporary construction section III of tunnel special construction scheme The TJ03 bid section of Lin'an Jiande Section of Linjin Expressway is located in Lin'an District and Tonglu County, Hangzhou. The starting stake is K36+400. The Tianmuxi Bridge is set to cross the Tianmuxi River and the provincial highway S208. A long tunnel is set to cross Baowu, then Wucun Bridge and Wujiawu Tunnel are set to cross the valley, then the Fenshui River Bridge is set to cross the Fenshui River, and then the Fenghuang Mountain and Zhongtai Mountain tunnels are set to the end of the bid,
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one Special construction scheme for tunnel karst cave -
two Special construction scheme for karst cave treatment -
three Sand blowing construction scheme for tunnel karst cave -
four Grouting construction scheme for tunnel karst cave -
five Construction Scheme for Tunnel Karst Cave Plugging -
six Construction Scheme for Tunnel Karst Crossing -
seven Construction Scheme for Foundation Karst Cave Treatment -
eight Special construction scheme for pile foundation karst cave