Construction method of prestressed pipe pile with vertical water discharge grooves

Abstract

The invention particularly relates to a construction method of a prestressed pipe pile with vertical water discharge grooves, and is used for solving the problems in the traditional construction of the prestressed pipe pile, such as sedimentation, bearing capability reduction and pollution to the construction field. The construction method comprises the following steps of a. uniformly distributing water discharge grooves on external circumference of the prestressed pipe pile, and arranging a V-shaped groove between two adjacent water discharge grooves, wherein the V-shaped groove is communicated with the two adjacent water discharge grooves; b. installing a water accumulation protection drum with an opening at the bottom at the insertion position of the prestressed pipe pile, wherein a water guide pipe communicated with the water accumulation protection drum is arranged on sidewall of the water accumulation protection drum and a control valve is arranged on the water guide pipe; c. inserting the prestressed pipe pile along the opening of the water accumulation protection drum, wherein pore water enters the water discharge grooves under the action of pressure, the pore water in the water discharge grooves rises and is discharged through the water guide pipe; and d. installing the water accumulation protection drum to the insertion position of next prestressed pipe pile. The construction method has reasonable and reliable structure design, not only can reduce insertion resistance to improve construction progress rate, but also has good effect of inhibiting sedimentation after construction, and has the advantages of simpleness in structure and easiness in implementation and control.

Description

technical field [0001] The invention relates to a construction method of a prestressed pipe pile, in particular to a construction method of a prestressed pipe pile with a vertical drainage groove. Background technique [0002] The technology of prestressed pipe piles to strengthen soft soil foundation is a mature technology developed and widely applied in recent years. In the development process of prestressed pipe pile technology, large-scale factory batch production has been realized by using centrifugal forming technology, and industrialization has been initially formed; the use of impact or static pressure equipment for penetration construction has formed a mature construction method; in high-speed railways, Highways, high-rise buildings and other fields have been considered by the design department as an economical and practical soft foundation treatment important technical program comparison object. [0003] However, this technology still has the following disadvantag...

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Problems solved by technology

[0004] The present invention provides a prestressed pipe pile with a vertical drainage groove in order to solve the problems of subsidence due to small friction with soft soil, gap between the pipe pile and soft soil to reduce bearing capacity and pollute the construction site during construction. Construction method of stress pipe pile

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