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A method of installation and disassembly of soil nail wall support

An installation method and soil nailing wall technology, applied in excavation, sheet pile wall, construction and other directions, can solve the problems of resource waste installation, slope deformation, damage, etc. Effect

Active Publication Date: 2021-05-25
BEIJING URBAN CONSTR EXPLORATION & SURVEYING DESIGN RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] To sum up, there are problems in the prior art: waste of resources and difficulty in installation, there is a gap between the panel and the soil, which may easily cause slope deformation or even damage

Method used

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  • A method of installation and disassembly of soil nail wall support
  • A method of installation and disassembly of soil nail wall support
  • A method of installation and disassembly of soil nail wall support

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specific Embodiment

[0055] According to the installation and dismounting method of above-mentioned a kind of soil nailing wall support, a specific embodiment of the present invention is as follows:

[0056] The invention relates to an assembly-type preloaded GFRP composite material soil nail wall support construction method. All components of the soil nail wall are standard parts and can be prefabricated in a factory, and the components only need to be assembled on site. Soil nail drilling is carried out on the pre-supported slope surface. Each row of longitudinal holes is required to be on a straight line, and each row of horizontal holes is required to be on the same line. Soil nails, and then sequentially assemble GFRP joints, GFRP nuts, air bags or air bags, GFRP panels, connecting rods and pressure plates. Among them, the function of the air bag or the air bag is to make the panel and the slope closely fit, preload by inflating, and bear the earth pressure. After the support is completed, d...

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Abstract

An embodiment of the present invention provides a method for installing and disassembling soil nail wall support. The installation method includes: constructing soil nails on the surface of the soil, installing soil nail joints on the soil nails, and the soil nails are hollow cylindrical Slurry holes are designed on the circumferential surface of the soil nails; the assembly parts of the airbag and the panel are installed between two rows of soil nails, the airbag is between the soil surface and the panel, the edge of the assembly part has a groove, and the groove is clamped On the side of the soil nail joint; lay a connecting rod on the outer surface of the panel, connect the two ends of the connecting rod to the soil nail joint respectively, install a pressure plate above the soil nail joint connected with the connecting rod; inject grout into the interior of the soil nail , the slurry flows out through the overflow hole and is consolidated with the soil; the airbag is inflated to make the airbag fully loaded, so that the panel is closely attached to the slope soil; the assembly efficiency and assembly quality are improved by the invention, and the supporting materials can be recovered at the same time And soil nail wall components are used for multiple reuse, resource saving, green and environmental protection.

Description

technical field [0001] The invention relates to the field of construction engineering, in particular to a method for installing and dismantling soil nail wall support. Background technique [0002] The soil nailing wall support method is simple to install and low in cost, and is widely used in foundation pit engineering. However, the supporting materials currently used are steel bars and concrete. These materials are for one-time use, and they are directly buried in the ground when they are used up. The soil nail wall left in the ground not only causes waste of resources, but also brings difficulties to the installation of surrounding projects, and the surface layer of the slope is made of on-site braided steel bars. The net is formed by spraying concrete, which is not only easy to cause dust, but also has a long installation period, which is not conducive to the stability of the slope or foundation pit. [0003] In recent years, some scholars and experts have begun to eng...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D17/04E02D5/76E02D15/04
CPCE02D5/765E02D15/04E02D17/04
Inventor 张建全刘军周与诚柳颂丹金涛涛王思锴李芳凝牛大伟侯苏伟宋晔阚生雷尹利洁李克蓬王向兰
Owner BEIJING URBAN CONSTR EXPLORATION & SURVEYING DESIGN RES INST
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