Hydraulic connection-board pile board and method for reinforcing it and forming large feet pile

Abstract

The invention relates to a hydraulic sheeting pile plate and the reinforcing and big-footed pile forming method. And the hydraulic sheeting pile plate comprises frame sheet, trough sheet and the hydraulic distribution tube installed at the bottom end, where the frame sheet or trough sheet pile plate is vertically equipped with through holes for installing sand feed guide tube and water guide tube; and the reinforcing method comprises: A. hydraulically inserting the hydraulic sheeting pile plate into the stratum; B. before insertion into the stratum, placing the sand feed guide tube and water guide tube in the through holes; C. removing the water guide tube, and connecting the sand feed guide tube with the ground sand transporting pipeline so that the water flow carries the powdered sand to enter through the sand transporting tube and sand feed guide tube into the space between the hydraulic sheeting pile plate and the stratum to form reinforcement layer compatible with the stratum; D. removing the sand transporting pipeline and the sand feed guide tube for backup. And the big-footed pile forming method comprises: hydraulically putting the hydraulic sheeting pile plate to the preset depth of the stratum, installing the spraying pipe with lateral holes in the water guide tube installing through hole to spray water flow in all directions, expanding the space and pouring cement mortar into the expanded space to form the big-footed pile.

Description

1. Technical field [0001] The invention relates to bridge piles, wharf piles and various pile foundation projects, in particular to a hydraulic inserting pile plate and a method for reinforcing and forming a bigfoot pile. 2. Background technology [0002] The existing hydraulic-inserted pile slabs use water jetting to cut the stratum and then let the pile slabs enter the stratum. The gap between the pile slab and the stratum is gradually filled by the natural deposition of sediment. It is a process to restore the bearing capacity of the pile foundation. Therefore, it has a certain influence on the initial bearing capacity of the pile slab. In particular, the use of hydraulic insert frame slabs and grooved slabs to construct pile foundation projects has the advantages of reducing the dead weight of pile slabs and increasing the pressure-bearing area, which is conducive to optimizing the structure and controlling the cost of the project. However, due to the increase of the st...

AI Technical Summary

Problems solved by technology

However, due to the increase of the stratum area cut by the pile slab into the stratum, the volume of the space that needs to be filled with sand increases accordingly, and it is sometimes difficult to meet the needs of the project simply by relying on natural silt backfilling methods.

For some pile foundation projects built on soft ground and some projects that need to greatly improve the bearing capacity of the pile foundation, the traditional method is to rely on explosive reaming to form large piles or simply rely on deepening the depth of the pile legs to increase the bearing capacity , but the cost is high and the speed is slow

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