Steel plate pile and support construction method for foundation pit

Abstract

The invention discloses a steel plate pile and a support construction method for a foundation pit, wherein the steel plate pile comprises a steel plate, the steel plate is a strip-shaped and both endsof the steel plate are provided with a lock catch matching part, the steel plate is sunken inwards in the middle part of the vertical side face near the lock catch matching part to form a first groove along the height of the steel plate, which is vertical through, and whose cross section is T-shaped; an H-shaped steel, which comprises a web plate and a pair of wing plates which are vertically fixed on two sides of the H-shaped steel, the H-shaped steel includes a first wing plate and a second wing plate that are equal in width to the steel plate, and the H-shaped steel is matched with the inner side portion of the first groove, and the first wing plate is provided with a lock catch matching part at both ends, the vertical side of the outer side of the first wing plates sunken inwards to form a second groove, which is vertical through, and whose cross section is T-shaped; the second wing plate is clamped in the first groove, and the steel plate and the H-shaped steel are spliced to form an H-shaped steel sheet pile. The steel plate pile has the advantages of convenient construction, stable structure, and the like, and the steel plate pile can be widely applied to the technical field of steel sheet pile and foundation pit support construction method.

Description

technical field [0001] The invention relates to the technical field of steel sheet piles and foundation pit support construction methods. More specifically, the present invention relates to a steel sheet pile and a foundation pit support construction method. Background technique [0002] In the conventional foundation pit supporting process, there are following defects: 1, the side wall construction of the pit foundation is troublesome. 2. The lower end of the steel sheet pile is bent toward the inner side of the easy-phase foundation pit under the action of earthwork pressure. 3. The support structure is unstable and various guiding mechanisms need to be installed. [0003] However, the construction method using existing U-shaped steel sheet piles for support usually includes the following steps: (1) inserting U-shaped steel sheet piles 021 into the soil layer 01 to form a support structure; (2) excavating the soil layer, and digging To the design elevation of the first l...

AI Technical Summary

Problems solved by technology

[0002] In the conventional foundation pit support process, there are the following defects: 1. The side wall construction of the pit foundation is troublesome

2. The lower end of the steel sheet pile is bent toward the inner side of the easy-phase foundation pit under the action of earthwork pressure. 3. The support structure is unstable and requires a variety of guiding mechanisms

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