Construction Method for Removing Anchor Bar Obstacles During Grooving Process of Underground Diaphragm Wall

A technology of underground diaphragm wall and construction method, which is applied in the direction of excavation, sheet pile wall, foundation structure engineering, etc. It can solve the problems affecting the safety of surrounding buildings and structures, the collapse of groove walls, etc., and achieve the purpose of preventing hole collapse and requiring small site space , to ensure the effect of stability

Active Publication Date: 2017-05-03
ZHEJIANG GUOFENG GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a construction method for removing anchor rod obstacles in the process of forming an underground diaphragm wall, which mainly solves the conventional steel pipe used in the prior art and directly uses a groove forming machine to remove anchor rods, which may easily cause the wall of the groove to collapse Accidents, technical problems affecting the safety of surrounding buildings and structures, etc.

Method used

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  • Construction Method for Removing Anchor Bar Obstacles During Grooving Process of Underground Diaphragm Wall
  • Construction Method for Removing Anchor Bar Obstacles During Grooving Process of Underground Diaphragm Wall

Examples

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Embodiment

[0049] Embodiment: The construction method of removing the anchor bar obstacle in the process of forming the underground diaphragm wall in this example, the steps are:

[0050] A. Construction preparation:

[0051] a. Level the site, reasonably arrange the material shed and the installation location of machinery and equipment, the location of water and electricity connectors and drainage ditch, and shorten the distance of high-pressure hoses as compactly as possible;

[0052] b. Calibrate the hole position according to the design;

[0053]c. Set up temporary sheds to store a certain amount of materials;

[0054] d. Mechanical maintenance, dry running, load running, test spraying;

[0055] B. Rig in place:

[0056] The frame of the drilling rig is made of welded section steel. The lower part is made of two thicker steel pipes as a platform and a moving roller. The steel pipes are underlaid with square wood. The frame is placed stably on the platform, the drill pipe is verti...

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Abstract

The invention relates to a construction method for removing anchor rods, in particular to a construction method for removing anchor rod obstacles in a grooving process of an underground diaphragm wall. By means of the construction method, the technical problems that in the prior art, the anchor rods are removed directly through a grooving machine by the adoption of conventional steel pipes, groove wall collapse accidents are caused easily, and the safety of surrounding buildings and structures is influenced can be solved. The construction method comprises the steps of conducting construction preparation, placing a drilling machine in place, conducting drilling, spreading a drilling rod, manufacturing grout, conducting grouting operation, moving a machine, conducting secondary grouting, conducting maintenance to designed strength, conducting cutting through grooving machine and conducting acceptance check.

Description

technical field [0001] The invention relates to a construction method for removing anchor rods, in particular to a construction method for removing anchor rod obstacles during the process of forming an underground continuous wall. Background technique [0002] With the advancement of urban modernization, the density of buildings in the city is also increasing, high-rise buildings are constantly being built, and the excavation depth of foundation pits is getting deeper and deeper. The price is getting higher and higher, and the third is because it meets the needs of civil air defense. Now the investors of buildings have gradually begun to develop underground space. Nowadays, it is common to build basements with one to two floors, and even now there are basements with three to four floors or five to six floors. [0003] Therefore, when the support problem of deep foundation pit excavation is in the space and the surrounding complex environment, the underground diaphragm wall ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D17/06E02D5/18
Inventor 汪强俞文灿沈建良俞文钧
Owner ZHEJIANG GUOFENG GRP
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