Construction method for reducing sinking of steel sheet piles with piles and improving overall stability of foundation pit

Abstract

The invention discloses a construction method for reducing sinking of steel sheet piles with piles and improving overall stability of a foundation pit. The method comprises the steps that a rope screwing connecting part is arranged at the set position of the top of each steel sheet pile to be constructed; a prefabricated gravity type anchor system is arranged at the safe position outside the construction range of the steel sheet piles; and the steel sheet piles are constructed in sequence, when each steel sheet pile is driven to the preset elevation, the rope screwing connecting part on the steel sheet pile is connected through a steel wire rope, and the other end of the steel wire rope is fixed to the prefabricated gravity type anchor system. The construction method is applied to protection of a retaining wall, a bridge building cofferdam, a foundation municipal engineering wading section and the like, and has the beneficial effects that operation is easy, the effect is obvious, the construction period is shortened, the engineering cost is reduced, safety and feasibility are achieved, and the quality is guaranteed; and deformation of the steel sheet piles in the steel sheet pile construction process can be greatly reduced, disturbance of a cofferdam soil body is reduced, the integrity and stability of the steel sheet piles are improved, the foundation pit construction safety is guaranteed, and the piling time is shortened.

Description

technical field [0001] The invention belongs to the technical field of building construction, and relates to a construction method for reducing the sinking of steel sheet piles with piles and improving the overall stability of foundation pits. Background technique [0002] In recent years, the application of steel sheet piles in my country's construction has become more and more extensive, and the demand has continued to increase. The steel sheet pile has its own characteristics of high strength, light weight, and simple construction, etc. It is widely used in flood control, bridge construction cofferdam protection, foundation municipal engineering wading section cofferdam reinforcement, etc. In the process of steel sheet pile support for deep foundation pit slope and steel sheet pile for cofferdam reinforcement, due to the large vertical length of the steel sheet pile, the interlocking of the lock joints produces a large vertical friction force. It is easy to cause single ...

AI Technical Summary

Problems solved by technology

Due to the repeated application of steel sheet piles, it is easy to cause deformation and damage to the steel sheet piles, and the soil of the cofferdam is frequently disturbed, which is time-consuming and labor-intensive, and the cost is high

Images