A Construction Method for Reinforcement Treatment of Soft Foundation Steel Pipe Pile in Confined Space

A technology of limited space and construction method, applied in infrastructure engineering, drilling equipment and methods, sheet pile wall, etc. problems such as the verticality of steel pipe piles to achieve the effect of light weight, small footprint and small length
CN105951749BActive Publication Date: 2018-04-03SINOHYDRO BUREAU 14 CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
SINOHYDRO BUREAU 14 CO LTD
Publication Date
2018-04-03

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Abstract

The invention discloses a construction method for reinforcement treatment of a soft foundation steel pipe pile in a confined space. By means of the construction method for reinforcement treatment of the soft foundation steel pipe pile in the confined space, construction is easy, convenient and fast. The construction method comprises the following steps of (1) assembly of drilling equipment, (2) drilling operation, (3) cleaning of the steel pipe pile, (4) grouting preparation, (5) grouting operation and (6) forming of the steel pipe pile. By means of the construction method, spatial constraints are avoided, operation is easy and convenient, and secondary disturbance to existing buildings is prevented.
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Description

Technical field

[0001] The invention relates to the technical field of civil construction, in particular to a construction method for strengthening treatment of soft foundation steel pipe piles in a confined space. Background technique

[0002] In engineering construction, soft foundations such as gravel backfill areas and sedimentary layers are often encountered. At present, the conventional treatment methods for steel pipe piles on soft foundations in China are generally large and medium-sized equipment to perform dynamic tamping, hammering, and hydraulic pressure on the steel pipe piles. With limited space and restricted boundary conditions, it is difficult for large and medium-sized equipment to operate, and it is likely to cause secondary disturbance to the original foundation, which will bring disadvantages to the safety and stability of the building itself. Moreover, in soft foundations, steel pipe piles tend to tilt into the ground with low resistance, it is difficult to ...

Claims

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