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Construction method of subway station entrance and exit guard posts

A construction method and technology for subway stations, applied in excavation, infrastructure engineering, construction, etc., can solve problems such as insufficient stability of marking lines, unclear dividing lines, interference of drawn lines, etc., and achieve long marking duration and accurate marking , The effect of easy construction

Active Publication Date: 2019-08-02
广州穗岩土木科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The deficiencies in the above-mentioned prior art are: in the process of pouring the guide wall, templates need to be used; Clear, affecting the next construction

Method used

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  • Construction method of subway station entrance and exit guard posts
  • Construction method of subway station entrance and exit guard posts
  • Construction method of subway station entrance and exit guard posts

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Embodiment 1, a construction method for occlusal retaining piles of a subway station, comprises the following steps:

[0039] The first step is to draw the line.

[0040] In this embodiment, the marking operation steps are: clear the site on the surface of the pre-excavated foundation pit, plan the excavation location of the foundation pit on the site, and the location where the surrounding protection piles need to be constructed, and draw a line on the predetermined position, There are connecting columns 6 fixed at the four apexes of the foundation pit, and thin lines 7 are tied on the connecting columns 6, so that the thin lines 7 bypass the four connecting columns 6 in turn to form four dividing lines suspended on the ground. The interior is where the retaining piles are dug.

[0041] The connecting post 6 includes a fixed nail 60 inserted on the ground, and a wire winding post 61 fixed on the fixed nail 60 away from the ground. The winding rod 611 on the plate 610...

Embodiment 2

[0058] Embodiment 2, the difference between this embodiment and Embodiment 1 is: in the first step, the operation of marking is to draw a dividing line on the soft ground with objects such as pens or steel bars or branches on the ground. In the embodiment, practical steel bars are used to draw lines on the ground.

Embodiment 3

[0059] Embodiment 3, the difference between this embodiment and embodiment 1 is:

[0060] In the second step, the first body 1 is fixedly connected to the second body 2, and the first body 1 is fixedly connected to the third body 3. During installation, the first body 1 and the second body 2 are fixed to each other and placed in the guide wall groove Inside.

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PUM

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Abstract

The invention discloses a construction method of subway station entrance and exit guard posts, and relates to a construction method of guard posts, and the key points of the technical scheme are as follows: the construction method comprises the following steps: 1, scribing; 2, manufacturing a guide wall; and thirdly, carrying out drilling and pouring, wherein the construction mode of scribing is that a connecting column is fixed to the end of the preset position, a fine line is wound around the connecting column to form a boundary line, the connecting column comprises a fixing nail inserted into the ground and a line winding column fixed to the end, away from the ground, of the fixing nail, and the fine line is wound around a winding column. According to the invention, the construction efficiency is improved through the convenient installation of the template.

Description

technical field [0001] The invention relates to a construction method for a protective pile, in particular to a construction method for a protective pile at an entrance and exit of a subway station. Background technique [0002] Subway stations are generally underground, and foundation pits need to be excavated at the entrances and exits of subway stations. The existing foundation pit construction method is as follows: mark the position where the pit needs to be dug, pour protective piles around the foundation pit, and use To prevent the collapse of the side wall of the foundation pit or water seepage from the outside of the foundation pit to the inside of the foundation pit. [0003] In order to improve the strength of the retaining pile, there is an existing occlusal retaining pile, which allows two adjacent concrete columns to form a staggered occlusal state, thereby improving the supporting strength of the retaining pile. [0004] The construction method of the existing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/04
CPCE02D17/04
Inventor 王欢
Owner 广州穗岩土木科技股份有限公司
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