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Method for protecting and reinforcing anchor rope of steel pipe pile

A technology of steel pipe piles and anchor cables, which is applied in the field of protection and reinforcement of steel pipe piles and anchor cables, to achieve the effects of reducing impact, effective and fast construction, and less environmental pollution

Inactive Publication Date: 2010-12-08
THE FIFTH ENG CO LTD OF CHINA TIESIJU CIVIL ENG GRP
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AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a steel pipe pile anchor cable protection and reinforcement method, which solves the problem of reinforcing and protecting the buildings next to the open-cut foundation pit before the construction of the open-cut foundation pit, and can effectively ensure the safety of the building

Method used

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  • Method for protecting and reinforcing anchor rope of steel pipe pile
  • Method for protecting and reinforcing anchor rope of steel pipe pile
  • Method for protecting and reinforcing anchor rope of steel pipe pile

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specific Embodiment

[0037] A station of a subway line 5 has a total length of 315m. One side of the foundation pit is parallel to a certain railway. In order to ensure the safety of the railway during construction, the railway was protected and reinforced before excavation of the foundation pit to prevent the subgrade from sinking and moving toward the subway foundation pit.

[0038] The railway is reinforced by steel pipe piles and prestressed anchor cables. like image 3 As shown, a row of φ600 steel pipe piles is inserted longitudinally along the south side of the railway, with a thickness of t=12mm and a spacing of 900mm. There are 314 piles in total, with a depth of 10 meters. The interval is 3φ15 steel strand prestressed anchor cables, the single anchor cable is 24 meters long, the distance is 1.8 meters, the anchor cable anchor section is 14 meters long, and the free section is 10 meters long.

[0039] After the protection and reinforcement was completed, the normal station foundation pi...

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Abstract

The invention relates to a method for protecting and reinforcing an anchor rope of a steel pipe pile. The method comprises the following steps of: inserting the steel pipe pile, wherein the steel pipe pile is a steel pipe of which the diameter is between 400 and 600 millimeters; accurately positioning the steel pipe and inserting the steel pipe into a formation until the steel pipe reaches a designed position; constructing a top beam on the top of the steel pipe pile, erecting a formwork, binding a reinforcing steel bar and pouring concrete on the top of the steel pipe pile and connecting the top of the steel pipe pile into a whole to form the top beam; and constructing the anchor rope on the top of the steel pipe pile, forming holes through the top beam by using a down-the-hole drill, drilling holes and constructing the anchor rope. The problem of the reinforcement and protection of a building before foundation pit construction is solved, and the safety of the building can be ensured effectively. The method has the characteristics of short construction time, safety, low cost, a small amount of environmental pollution and no need for special construction machinery.

Description

technical field [0001] The invention relates to a method for protecting and reinforcing steel pipe pile anchor cables, in particular to a method for protecting and reinforcing steel pipe pile anchor cables for buildings adjacent to the open excavation foundation pit before the construction of the open excavation foundation pit. Background technique [0002] In modern cities, with the development of the economy, the cities continue to become large and super large. In order to ensure convenient urban transportation and make full use of underground space, more and more subways are being built, and the application prospects are very broad. [0003] In urban construction, the site is small, and there are often various buildings around the foundation pit. The construction must be completed while ensuring the safety of surrounding buildings. Especially when the building has a bias effect on the foundation pit, it is necessary to reinforce the surrounding buildings in advance. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/04E02D5/76
Inventor 白伟孙爱军刘二龙付国才鲍俊捷
Owner THE FIFTH ENG CO LTD OF CHINA TIESIJU CIVIL ENG GRP
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