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Anchor rod pull-out test device

A technology of pull-out test and anchor rod, which is applied in the direction of measuring device, applying stable tension/pressure to test the strength of materials, instruments, etc., and can solve the problem that a single reaction pad cannot correctly reflect the pull-out force of the anchor rod.

Pending Publication Date: 2021-01-05
CHINA RAILWAY 20 BUREAU GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to provide a bolt pullout test device, which aims to solve the technical problem that the single reaction backing plate in the prior art cannot correctly reflect the pullout force of the bolt

Method used

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  • Anchor rod pull-out test device
  • Anchor rod pull-out test device
  • Anchor rod pull-out test device

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Embodiment Construction

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0036] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.

[0037] In the present in...

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Abstract

The invention discloses an anchor rod pull-out test device, and relates to the field of anchor rod pull-out test detection. The device comprises: a lower counter-force base plate and an upper counter-force base plate which are oppositely arranged, wherein the lower counter-force base plate is provided with a first anchor rod hole; a plurality of connecting beams arranged between the lower counter-force base plate and the upper counter-force base plate, wherein the connecting beams are arranged in the circumferential direction of the first anchor rod hole, and the two ends of each connecting beam are fixedly connected with the lower counter-force base plate and the upper counter-force base plate correspondingly; and a hollow jack fixedly connected to the upper counter-force base plate. Thedrill hole where the anchor rod on the working face is located is located in the orthographic projection of the first anchor rod hole on the working face. By adopting the anchor rod pull-out test device provided by the invention, the pull-out force measured by the hollow jack can be prevented from being influenced by the friction force between the anchor rod and a grouting body.

Description

technical field [0001] The invention relates to the field of bolt pullout test detection, in particular to a bolt pullout test device. Background technique [0002] In the traditional anchor pullout test, a simple single-piece reaction backing plate is usually used to install a hollow jack for the test, but when the diameter of the central hole of the traditional single-piece reaction backing plate is small, the displacement of the grouting body and The movement is limited by a single reaction backing plate, and the test data cannot truly reflect the pull-out force of the anchor but will be affected by the friction between the anchor and the grouting body. Contents of the invention [0003] The main purpose of the present invention is to provide a bolt pullout test device, aiming at solving the technical problem that a single reaction backing plate in the prior art cannot correctly reflect the pullout force of the bolt. [0004] In order to achieve the above object, a kin...

Claims

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Application Information

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IPC IPC(8): G01N3/10G01N3/02
CPCG01N3/10G01N3/02G01N2203/0003G01N2203/0017G01N2203/0048G01N2203/0252G01N2203/0676
Inventor 罗宗帆雷升祥李国良任少强田殿军王飞赵晓勇李金魁张欢王平安左转玲崔润兵冯振宁
Owner CHINA RAILWAY 20 BUREAU GRP
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