Soft soil foundation large scale steel float lock head construction method
A soft soil foundation and construction method technology, which is applied in the direction of basic structure engineering, ship locks, and ship lifting devices, can solve the problems of long construction period, high engineering difficulty, and high cost, and achieve saving construction materials, good water-stop effect, Engineering quality reliable results
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[0017] Example
[0018] Take a new ship lock project as an example. The geological conditions are soft soil foundation and the front water depth is about -10.0m. The specific construction steps are as follows:
[0019] 1. Excavation and dredging of foundation trench
[0020] The foundation trench is excavated to -14.2m, with a width of 30m, and a slope that meets the design requirements to remove silt.
[0021] 2. Drive precast piles
[0022] Using water piling boats to drive piles, elevation control, penetration check, 600×600mm prefabricated large square piles with a length of 38m are driven into the soft soil layer under the foundation trench.
[0023] 3. Stone dumping and leveling
[0024] There are two stone layers 200mm on the bottom of the foundation bed, and a 1.8m concrete cushion layer is poured on the riprap layer. The concrete cushion layer needs to be wrapped around the top of the pile head and scraped, and then the top layer is cast straight through about 80mm of blo...
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