Method for accurately positioning impacting hole-drilling and pile grouting

A technology for bored piles and precise positioning, which is used in sheet pile wall, foundation structure testing, construction, etc., can solve the problems of unstable operation, inaccurate positioning, etc. Quality, the effect of preventing slumping

Inactive Publication Date: 2018-04-13
CHONGQING CONSTR ENG GRP +1
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Problems solved by technology

[0003] In order to solve the technical problems such as inaccurate positioning and unstable operation when t

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  • Method for accurately positioning impacting hole-drilling and pile grouting
  • Method for accurately positioning impacting hole-drilling and pile grouting
  • Method for accurately positioning impacting hole-drilling and pile grouting

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[0032] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0033] Such as figure 1 As shown, a method for accurately positioning percussion bored piles in the present invention includes:

[0034] Step S101: Determine the position of the hole, use the total station to locate the position of the pile hole, pull the cross-hair nails to place four control piles according to the position of the pile hole, and draw the contour line of the cast-in-place pile based on the four control piles to facilitate drilling The pile must be protected accurately to prevent disturbance during the construction process.

[0035] Step S102, bury the protective tube, dig the protective tu...

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Abstract

The invention discloses a method for accurately positioning impacting hole-drilling and pile grouting. The method comprises the steps of measuring a hole position, burying a protective casing, preparing mud, drilling a hole, checking the hole, cleaning the hole for the first time, manufacturing and installing a reinforcing cage, installing a guide pipe, cleaning the hole for the second time and grouting concrete. According to the method for accurately positioning impacting hole-drilling and pile grouting, the pile hole can be accurately positioned through the design of guard piles, so that theconstruction of a drilling machine is facilitated; the protective casing is buried so that the hole opening can be protected and ground stones can be prevented from falling into the hole, meanwhile,the level of the mud can be ensured, and the collapse of the hole can be prevented; and the hole is cleaned twice so that the sediment at the bottom of the hole can be effectively removed, the groutedpile body is not prone to be broken and filled with the mud, and the quality of the pile body is guaranteed.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to a method for accurately positioning percussion bored piles. Background technique [0002] Cast-in-situ pile refers to the pile hole formed in the foundation soil by means of mechanical drilling, steel pipe extrusion or manual excavation at the project site, and a pile made by placing a steel cage and pouring concrete in it. According to different hole-forming methods, Cast-in-situ piles can be divided into several categories such as immersed pipe piles, bored piles and bored piles. Among them, bored piles are the most widely used. Due to the shortcomings of inaccurate positioning and unstable operation in the existing drilling and pouring methods, the pile body after pouring is prone to broken piles, diameter shrinkage, and mud inclusions, etc. Poor perfusion will affect the quality of the pile body. Contents of the invention [0003] In order to solve the technical...

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Application Information

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IPC IPC(8): E02D5/38E02D33/00
CPCE02D5/38E02D33/00
Inventor 刘平周波万飞冉鹏陈彦君房志华
Owner CHONGQING CONSTR ENG GRP
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