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Construction Scheme of Shield End Reinforcement in Subway Section The section from xx station to xx east station includes shield section and mine method section. In this section, one air shaft and two shield lifting shafts (underground excavation section) are set, and the shield reaches and starts. In order to ensure the construction safety of the starting shield, the upper and lower soil mass of the starting tunnel should be reinforced. The double pipe jet grouting pile with a diameter of 800 ㎜ and a spacing of 600 ㎜ shall be used for reinforcement. -
Horizontal reinforcement scheme of metro shield construction end According to the site excavation geology, the vault and arch bottom of the end tunnels of the Science Park Station and Shahe East Station are located in the sand layer. The original design ends are reinforced with jet grouting piles to stop water. According to the actual construction experience, the jet grouting piles are in the clay layer and gravelly sandy cohesive soil, and the effect of jet grouting cannot fully guarantee the water stop and stability requirements of the end soil mass. Drawing on the successful experience of other projects, the end reinforcement scheme of the Science Park station is proposed to be adopted -
Construction Scheme for Shield Head Reinforcement in Subway Section (High Pressure Jet Grouting Pile) The double pipe jet grouting pile with a diameter of 800 ㎜ and a spacing of 600 ㎜ shall be used for reinforcement. The plane size of the single track reinforcement area at the starting end of the shield is 12m long, 8m wide, and the single pile is 12m long; The plane size of the single track reinforcement area where the shield machine reaches the end is 12m long, 9m wide and 12m long for a single pile. -
Construction scheme for soil reinforcement of tunnel portal at the end of metro shield section The shield starts from the west end of XX Station and arrives at the east end of XX South Road Station. After passing through XX South Road Station, the shield starts at the west end of XX South Road Station for the second time. The stability of the soil mass at the beginning and at the end of the shield is a key to the start and arrival of the shield machine. The success and failure of the reinforcement of the soil mass at the end directly affect whether the shield machine can safely start and arrive; Shield departure and arrival -
Special construction scheme for advanced horizontal grouting of metro shield section end reinforcement According to the geological survey data, the geological conditions from bottom to top at the end reinforcement of the shield launching shaft are as follows:<8-2>strongly weathered metasandstone,<8-1>completely weathered metasandstone,<6-2>hard plastic eluvium,<3-1>muddy clay,<3-4>medium coarse sand& -
Construction scheme for soil reinforcement of end tunnel portal of Jiangxi metro shield section The number of construction machinery and construction machinery shall be reasonably selected according to the schedule, construction site conditions and construction technology, and the construction team shall be organized in advance to ensure that the soil reinforcement is completed on time with quality and quantity guaranteed. -
[Guangdong] Special Construction Scheme for Micro pile End Reinforcement in Metro Shield Construction (China Railway) (1) Ensure the stability of the upper end stratum, shield shaft structure and the safety of the hoisting operation during the shield machine hoisting operation; (2) Improve the stability of the tunnel body stratum after the portal reinforcement is cut, and ensure the safety of the shield starting construction; (3) Reduce the permeability of ground water in the end stratum to prevent excessive loss of ground water when the shield starts. -
Special construction scheme for advanced horizontal grouting of shield section end reinforcement of Guangdong Metro According to the geological conditions and water plugging construction requirements, the grouting materials are mainly ordinary sulphoaluminate cement single slurry, supplemented by ordinary Portland cement, ordinary cement water glass double slurry, HSC ultra-fine cement slurry, TGRM cement slurry and ordinary sulphoaluminate salt water slurry. During the construction process, the material type and proportion shall be selected and adjusted according to the water inflow and the formation slurry absorption. -
Construction Scheme for Foundation Reinforcement of High Pressure Jet Grouting Pile at the End of Shield Tunnels The shield construction of XX section of XX Metro Line 2 has two sections, namely, the section from XX station (original XX road station) to XX station (original XX road station) and the section from XX station (original XX road station) to XX station. -
Construction Scheme for Foundation Reinforcement of High Pressure Jet Grouting Pile at the End of Shield Tunnels in and out of Guangdong Metro The project will select personnel with strong technical strength to participate in the construction, and at the same time, there is a complete set of management and assessment methods for the construction team. The construction team will be assessed in terms of quality, duration, reputation and service, so as to fundamentally ensure the quality of the workers required by the project, thus laying a solid foundation for the project quality objectives. -
[Anhui] Construction Scheme for Reinforcement of Shield Tunnels in and out of the Tunnel End Shaft (Page 24) There are 3 stations and 3 sections in XX section of civil works of Phase II Project of XX Rail Transit Line 1. The stations are XX Road Station, XX Road Station and XX Road Station; The sections are from the end of the test section to XX Road Station, from XX Road Station to XX Road Station, and from XX Road Station to XX Road Station. In order to ensure the safe entry and exit of the shield, the soil mass at the end shaft of the tunnel must be good -
[Anhui] Construction Scheme for Reinforcement of Shield Tunnels in and out of the Tunnel End Shaft (Page 24)_ There are 3 stations and 3 sections in XX section of civil works of Phase II Project of XX Rail Transit Line 1. The stations are XX Road Station, XX Road Station and XX Road Station; The sections are from the end of the test section to XX Road Station, from XX Road Station to XX Road Station, and from XX Road Station to XX Road Station. In order to ensure the safe entry and exit of the shield, the soil mass at the end shaft of the tunnel must be good -
Reinforcement scheme of metro shield passing through the end The station is an island platform with a width of 14m. The main structure is a double-layer three span frame structure. The total length of the station is 195m. The station is a transfer station of Line 17 in the long term. The transfer node is reserved in the middle. The transfer node is three floors underground. The width of the standard section of the station is 23.52m and the height is 13.61m. Top plate at the center of station calculation platform -
Construction scheme of shield machine end triple pipe high-pressure rotary jet grouting pile After 28 days of soil consolidation, the strength qu ≥ 0.8MPa, and the permeability coefficient K ≤ 10-6cm/s. The diameter of jet grouting pile is 1000mm, the spacing is 850mm, the occlusion is 150mm, the verticality deviation is not more than 5%, and the pile positioning deviation is not more than 50mm. The cement used for the section end reinforced jet grouting pile is P O42.5 ordinary silicate -
High pressure rotary jet grouting pile construction scheme (shaft end reinforcement of south line) High pressure jet grouting pile construction scheme (reinforcement of shaft ends on the south line), project overview, general construction arrangement, construction methods, quality standards and inspection measures, quality, safety and environmental assurance measures, flood control, fire fighting and security assurance measures, and jet grouting pile construction plan -
Construction Scheme for Reinforcement of End Shaft of Metro Project There are 3 stations and 3 sections in Civil Works Lot 9 of Phase II Project of xx Rail Transit Line 1, including Yungu Road Station, Nanning Road Station and Guiyang Road Station; The sections are from the end of the test section to Yungu Road Station, from Yungu Road Station to Nanning Road Station, and from Nanning Road Station to Guiyang Road Station. -
Nanjing Metro Shield Construction Scheme Nanjing Metro Shield Construction Scheme -
Construction scheme of cement powder spraying pile reinforcement Deep cement mixing piles with diameter of Ф 500 and length of 6.7m are used for foundation treatment of the project. P32.5 ordinary Portland cement is used as the main raw material cement, mixed with triethanolamine early strength agent, with the spraying amount of 55KG/M, and the pile body is not re sprayed with 4.0m. The design requires that the strength of cement soil is 1.8Mpa, and the bearing capacity of composite foundation is 110kn/m2 -
High pressure rotary jet grouting pile reinforcement construction scheme The project site is located at the north side of Guangfulin Road, Songjiang District, Shanghai, the west side of the planned Longteng Road, the east side of the planned Longyue Road, and the south side of the planned Yinhe Road. It is invested by Shanghai Longning Real Estate Development Co., Ltd. The whole site is equipped with an underground garage, which is divided into two parts: the south part is the first floor underground, and the north part is the second floor underground. At present, the garage in the south area has been excavated, and the enclosure structure in the north area has also been largely constructed -
Construction scheme and process of planting reinforcement The chemical anchor bolt and chemical planting glue fastening system can make the post planting reinforcement and anchor bolt show the same mechanical behavior as the pre embedding. Shenzhen Shengu Building Reinforcement Technology Co., Ltd. specializes in the special project of seismic reinforcement and reinforcement of building structures, The company owns the integrated overall solution of product process, construction process, design creative process and integrated fastening system services in the seismic strengthening and reinforcement industry of building structures -
Foundation pit retaining wall reinforcement construction scheme This project is a resettlement housing project with two floors of basement, and the main body is 18 floors. The retaining wall pile position is a single row of piles, the pile diameter is 1m, and the depth of the foundation pit is about 9.5m. The retaining wall of the original foundation pit is severely deformed, and it needs to be reinforced if it exceeds the warning value! -
Special construction scheme for demolition and reinforcement Special construction scheme for demolition and reinforcement -
Construction scheme for reinforcement and reconstruction of a school Main processes: carbon fiber cloth, steel bonding, steel wrapping, beam column section enlargement, rebar planting, cutting. -
Shield segment assembly construction scheme Prefabricated segments are transported by trolley to the shield machine and assembled under the assembly machine, and the segment assembly process of curve section and special section. -
Construction scheme of shield tunnel portal The shield tunnel shall be assembled with the same segments, and the specific requirements are as follows: (1) The lining shall be prefabricated reinforced concrete segments, which shall be assembled in staggered joints. (2) Each ring is composed of 1 capping block F (center angle 21.5 °), 2 adjacent blocks L (center angle 68 °) and 3 standard fast blocks B (center angle 67.5 °), with a ring width of 1200mm. (3) Tunnel -
Reinforcement construction scheme and technical measures Based on the seismic mechanism of the structure, seismic strengthening can be divided into the methods of reducing the seismic action, increasing the seismic capacity of the structure, and multi defense line seismic strengthening. The reduction of seismic action is mainly achieved by increasing the structural period or increasing the structural damping. It is generally applied to the seismic strengthening of large public buildings, and the strengthening methods to increase the seismic capacity of structures, such as increasing the seismic performance of walls -
Construction Scheme for House Reconstruction and Reinforcement 1. This project is the reconstruction project of Block D apartment in Tianjiao Garden, Machang Road, Tianjin. The building, built in 1997, is a four storey brick concrete structure with sloping roof. 2. The storey height of the building is 2.900m, and the structural elevation of the highest point of the roof is 14.120m. The building and roof are cast-in-place reinforced concrete slabs. 3. The seismic fortification category of buildings is Class C; The seismic fortification intensity is -
Construction scheme for danger removal and reinforcement of a reservoir In the construction scheme for danger removal and reinforcement of a reservoir, the upstream reservoir (hereinafter referred to as the upper reservoir) is located in the xxxxxx irrigation area at the lowest reaches of the xxx river basin, on the south bank of the xxx river, and on the west bank of xx, about 110km southeast of xxx city, and more than 50km east of xx town. -
Construction scheme of reinforcement planting No. Project Content 1 Project Name: Beijing xxxxxxxxx Project Lot C1 Structure Reinforcement Project 2 Project Location: 100 meters diagonally opposite to the government of xxxx Town, Haidian District, Beijing 3 Designer: Beijing xxxx Design and Research Institute Co., Ltd. 4 Supervisor: Beijing xxxx Supervision Co., Ltd. 5 General Contractor -
Construction Scheme for Steel Beam Reinforcement of Clubhouse (1) This project is the steel structure reinforcement project of the 30th and 31st floors of the Bund Club. As the functions and layout of each floor of the building have changed from the original building plan, it is necessary to make holes in the concrete floor and the original steel beam web. According to the design institute's new building functions, the entire structure is calculated and analyzed as a whole, the original structural steel beams are strengthened, and the holes on both sides of the steel beam web are stiffened -
Concrete column reinforcement construction scheme According to the Design Scheme for Reinforcement of Water Supply and Return Pipe Supports of the Plant Heat Supply Network, the water supply and return pipe supports of the plant heat supply network are reinforced to meet the load requirements after the pipe capacity is increased -
The construction scheme includes steel clad reinforcement The scaffold with enlarged beam section shall be erected with fastener type steel pipe scaffold, which shall bear various vertical and horizontal loads during construction. Therefore, the scaffold must have sufficient bearing capacity, rigidity and stability. No instability, collapse, deformation, inclination, shaking or distortion beyond the allowable requirements will occur under various loads during construction to ensure safe construction. -
Construction Scheme for Structural Reinforcement of Main Building The project is located in Changshu Shanghu Scenic Area, which is the reconstruction and reinforcement project of the original Baosteel Resort. Its main construction content: beam and slab structure carbon fiber reinforcement, beam and column section construction, etc. This project is a structural reinforcement and reconstruction project, with a building area of about 6218m2. -
Construction scheme for reservoir reinforcement The first stage of danger removal and reinforcement works includes anti-seepage and reinforcement of earth dam, heightening and widening of dam body at emergency spillway section and reconstruction of spillway gate. The construction organization plan of the above projects is still implemented according to the overall construction organization design plan. The overall construction organization is as follows: 7.1.1 Project conditions Nanshan Reservoir is located in Xizhu Town, Luoyang City, Henan Province, 7 from Zhangzhu Town -
Construction scheme of cement powder spraying pile reinforcement// Deep cement mixing piles with diameter of Ф 500 and length of 6.7m are used for foundation treatment of the project. P32.5 ordinary Portland cement is used as the main raw material cement, mixed with triethanolamine early strength agent, with the spraying amount of 55KG/M, and the pile body is not re sprayed with 4.0m. The design requires that the strength of cement soil is 1.8Mpa, and the bearing capacity of composite foundation is 110kn/m2 -
Concrete structure reinforcement construction scheme This project is a new xxxx building project, with two floors underground and 31 floors (27 floors of the office building) of the above ground scientific research incubation building, and a frame shear wall structure. Since the commercial concrete standard curing test block for 28 days failed to meet the design requirements, the entity was tested by a qualified testing agency entrusted, and some columns and shear walls with C60 concrete and C50 concrete poured on the second floor of the basement and on the ground were still -
Construction scheme of curtain grouting reinforcement The newly-built special thread Ershan Tunnel for Yuanzhou Wangwa Railway is located in Liangmao District, Huangtu, the suburb of Guyuan, Ningxia. It is a single track tunnel for industrial and enterprise class I railway. The starting mileage of the tunnel is DK5+345, and the ending mileage is DK11+788. The total length of the tunnel is 6443m, with 2 inclined shafts, and the total length is 2074m. The tunnel is located in a weak water rich area. Tunnel construction is divided into 4 operation teams -
Reinforcement construction scheme (word format) (1) This project is ------------. Due to the change of the function and layout of each floor of the building and the original building plane, the whole structure is calculated and analyzed according to the new building function of the design institute, and the parts with insufficient bearing capacity of the original structural members (foundation slab, wall, column, beam, slab, etc.) are reinforced by increasing the section and sticking steel plates. Three steel buildings are added -
Construction Scheme for Tunnel Reinforcement Construction Scheme for Tunnel Reinforcement -
Construction Scheme for Reinforcement of Existing Culvert The reconstructed and reinforced culvert is located in the K3+703.275 ～ K14+484.834 double simple road utilization and reconstruction section. It passes through Xinxing, Baisha and Taiping villages and towns. The current road is a two-way six lane road with a full width of 40m. The 8m central green belt is reconstructed into a pavement. After reconstruction, the main lane is a two-way eight lane road, and the right side is the heavy load standard. Due to K7+2
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one Winter construction scheme of shield machine -
two Construction scheme of shield tunnel -
three Safe construction scheme of shield machine -
four Construction scheme for shield machine installation -
five Construction Scheme for Shield Demolition -
six Waterproof construction scheme of shield machine -
seven Special construction scheme for shield machine -
eight Winter shield construction scheme