Steel sheet pile supporting structure and construction method thereof

Abstract

The invention provides a steel sheet pile supporting structure applied to the technical field of pit foundation supporting engineering construction and further relates to a steel sheet pile supportingconstruction method. The steel sheet pile supporting structure is characterized in that an abdominal cavity (2) capable of penetrating through a steel sheet pile (1) is formed in the steel sheet pile(1), a drill rod (3) is movably installed in the abdominal cavity (2), and the upper end of the drill rod (3) is connected with a motor; and a drill bit (4) is installed at the lower end of the drillrod (3) and is of an inverted-cone-shaped structure, a conveying pipeline (5) of a hollow structure is arranged inside the drill rod (3), a spray head (6) is arranged inside the drill bit (4) and communicates with the conveying channel (5), and multiple spray holes (7) communicating the spray head (6) with the outside of the drill bit (4) are further formed in the drill bit (5). According to thesteel sheet pile supporting structure, the problem that drilling of the steel sheet pile into a gravel layer and other hard stratums is difficult can be solved, disturbance caused by pulling out of the steel sheet pile to surrounding soil is reduced, and operation efficiency of the steel sheet pile is improved.

Description

technical field [0001] The invention belongs to the technical field of pit foundation support engineering construction, and more specifically relates to a steel sheet pile support structure, and also relates to a steel sheet pile support construction method. Background technique [0002] The steel sheet pile support structure has the advantages of strong bearing capacity, good water tightness, simple construction, efficient operation, and recyclable materials. It meets the requirements of structural safety, energy saving and environmental protection, and is widely used in support structures in various fields of construction projects. However, the steel sheet pile support in the prior art is mainly suitable for weak strata such as silty soil, silt, and silty clay. If hard strata such as gravel layers are encountered, the driving of the steel sheet pile will be affected. After the support works are completed, when the steel sheet piles are pulled out, the surrounding soil will...

AI Technical Summary

Problems solved by technology

However, the steel sheet pile support in the prior art is mainly suitable for weak strata such as muddy soil, silt, silty clay, etc., if it encounters hard strata such as gravel layers, it will affect the driving of steel sheet piles.

After the support works are completed, when the steel sheet piles are pulled out, the surrounding soil will also be disturbed

Therefore, existing technologies cannot effectively meet the needs

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