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A positioning device and positioning method for the drilling of steel arch anchor bolts for the initial support of tunnels

A technology of positioning device and steel arch, which is used in the direction of support device, tunnel, installation of anchor rod, etc.

Active Publication Date: 2021-07-06
CHINA RAILWAY NO 9 GRP NO 7 ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The purpose of this application is to provide a positioning device and positioning method for the drilling of steel arch anchor bolts for the initial support of tunnels, so as to solve or alleviate the problems in the above-mentioned prior art

Method used

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  • A positioning device and positioning method for the drilling of steel arch anchor bolts for the initial support of tunnels
  • A positioning device and positioning method for the drilling of steel arch anchor bolts for the initial support of tunnels
  • A positioning device and positioning method for the drilling of steel arch anchor bolts for the initial support of tunnels

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Embodiment Construction

[0046] The present application will be described in detail below with reference to the accompanying drawings and embodiments. Each example is provided by way of explanation of the application, not limitation of the application. In fact, those skilled in the art will recognize that modifications and variations can be made in the present application without departing from the scope or spirit of the application. For example, features illustrated or described as part of one embodiment can be used on another embodiment to yield a still further embodiment. Accordingly, it is intended that the present application cover such modifications and variations as come within the scope of the appended claims and their equivalents.

[0047]In the description of this application, the terms "vertical", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", " The orientation or positional relationship indicated by "top", "bottom", etc. is based on the orient...

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Abstract

The application belongs to the technical field of tunnels, and in particular relates to a positioning device and a positioning method for the drilling of steel arch bolts for the initial support of tunnels, including a positioning mechanism and a fastening mechanism. After the positioning device is installed, the guide pipe of the positioning mechanism is used as the anchor Rod positioning hole, the drilling rig drills through the positioning hole, remove the positioning device after drilling, insert the anchor rod into the anchor rod positioning hole, then grout the anchor rod, and fix the anchor rod and the steel arch frame connect. The application can meet the width requirements of different I-beams, and can accurately control the drilling angle, thereby accurately controlling the installation angle of the anchor rod.

Description

technical field [0001] The application belongs to the technical field of tunnels, and in particular relates to a positioning device and a positioning method for drilling anchor rods of steel arch frames for primary support in tunnels. Background technique [0002] In the existing tunnel primary support steel arch construction method, there are the following problems: [0003] When there is no drilling positioning device, drill holes directly according to the relative position. After the steel arch is installed, use an air-leg type pneumatic drill on both sides of the steel frame to drill the anchor bolt or anchor pipe hole according to the designed angle, and then use the anchor bolt (Anchor pipe), using U-shaped steel bar or L-shaped steel bar to weld the anchor rod or anchor pipe to the steel arch. [0004] The drilling position and drilling angle of this method are not easy to grasp, and it is easy to cause the drilling angle to be inconsistent with the design, the drill...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B7/04E21B7/06E21B15/04E21D11/18E21D20/00E21D20/02
CPCE21B7/04E21B7/06E21B15/04E21D11/18E21D20/003E21D20/02
Inventor 陈岩王振东刘洋李振兵景晓军金万旭王涛涛张霄汉吴佳骏申超宇张航彭红岩
Owner CHINA RAILWAY NO 9 GRP NO 7 ENG CO LTD
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