Preparation before construction of vibrating immersed tube gravel pile
Preparation before construction of vibrating immersed tube gravel pile & NBSP; The vibration-immersed tube gravel pile method is a method that uses the vibration-immersed tube to form holes, and adds hard particles to the tube, and forms the gravel pile after the pipe is pulled out and vibration-sealed to treat the foundation. The pile diameter can reach 1200mm, and the pile length can reach more than 40m.
Details >Key points of vibration immersed tube gravel pile construction
The vibration-immersed tube rubble pile method is a method that uses the vibration-immersed tube to form holes, and adds hard particles to the tube, and forms the rubble pile after the pipe is pulled out and vibration-sealed to treat the foundation. The pile diameter can reach 1200mm, and the pile length can reach more than 40m. Vibration immersed tube gravel pile test pile construction
Details >Application of vibrating immersed tube gravel pile
The vibration-immersed tube scree pile method adopts the vibration-immersed tube to form holes, and adds hard particles to the tube, and forms the scree pile after pipe drawing and vibration compaction to treat the foundation. The pile diameter of Shanghai strong foundation large-diameter vibration-immersed tube scree pile can reach 1200mm, and the pile length can reach more than 40m.
Details >Foundation pit supporting construction scheme - foundation pit excavation principle
Considering the characteristics of the surrounding environment and the stress of the horizontal support system of this project, the principle of excavation of foundation pit supporting construction is as follows: 1. Before earthwork excavation of foundation pit supporting construction, detailed earthwork excavation construction organization design should be prepared. 2, foundation pit supporting construction earthwork excavation should strictly implement the principle of "stratification, segmentation, symmetry and balance".
Details >A large area soft foundation treatment project for an EPC municipal project
This project is located in wenzhou city binhai new city core zone, north from sea avenue, south to binhai ten six-way Yu Tianrui avenue, west, east check jin-hai yu, six projects including coastal 13 road, binhai eight-way, sea, road, sea, five four, a total of four municipal road and bridge, for the design, procurement and construction (EPC) turnkey project. The present situation of the site is formed by the reclamation of the tidal flats. The soil is basically silt about 23~30m below the surface, and silty clay about 30~75m below the surface.
Details >Quality assurance measures for construction of biaxial mixing pile
Quality assurance measures for biaxial mixing pile construction: 1. Hole setting out error is less than 50mm, pile vertical error is less than 1/100.
Details >Construction scheme of three - axis cement - soil mixing pile for Shanghai strong foundation
1. Surveying and laying out according to the coordinate reference (control) point provided by the owner (or the general contractor), carry out the setting out positioning and engineering survey according to the design drawing, and make the permanent point and temporary point marks. The survey technology review list shall be completed after setting out and line, and the next procedure shall be carried out after the general contractor and supervision unit check and pass.
Details >Drilling scheme of composite pile construction with strong foundation in Shanghai
Shanghai strong foundation strength composite pile construction drilling scheme: 1, cement soil mixing pile construction depth range, all the drill pipe using cross blade.
Details >Establishment of plane measurement control network
1. The general survey control network submitted by the urban surveying and mapping department or unit cannot be directly used as the first level plane control network. The control network must be encrypted or auxiliary measures can be used.
Details >Large diameter vibrating immersed tube rubble pile
Large-diameter vibrating immersed tube crushed stone pile is a deep and large-diameter dense pile body composed of crushed stone formed by sinking the steel feed pipe into the design depth by using high-power vibrating hammer as the driving force, filling the gravel into the hopper and silo, and then pulling out the feed pipe through vibration. Compared with the traditional technology of gravel pile, Shanghai Qiangqiang has mature construction technology and experience, and has dozens of gravel pile construction equipment, which has been successfully used in many large-scale foundation treatment projects at home and abroad.
Details >Hong Kong airport is the biggest challenges facing the third runway construction aspect, before the project starts, sea DCM (mixing pile), land DCM (mixing pile), PVD (drain) in the sea, land gravel pile foundation treatment technology such as are for Japan, South Korea, the monopoly of international advanced technology, before and after the tender, the foreign counterparts enterprises of our country executes strict technology blockade. For this reason, the strong foundation has carried on the thorough research. After more than two years of continuous fighting day and night, countless scientific research, testing and adjustment, we have overcome the difficulties of equipment manufacturing and construction technology of PVD (drainage board) engineering ship, DCM (mixing pile) engineering ship, onshore gravel pile machine, and onshore DCM pile machine, and successfully mastered the core technology.