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Anchor rod axial force visual monitoring and early warning device and monitoring and early warning method thereof

A technology for monitoring and early warning and axial force, applied in the direction of measuring devices, measuring force, elastic deformation force measurement through measuring gauges, etc., can solve the problems of cumbersome operation, limited scope of application, high cost, etc. Wide-ranging, low-cost effects

Inactive Publication Date: 2020-06-09
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the shortcomings in the above-mentioned background technology, the present invention proposes a visual monitoring and early warning device for bolt axial force and its monitoring and early warning method, which solves the problems of high cost, cumbersome operation, and limited scope of application in the existing bolt axial force monitoring device. question

Method used

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  • Anchor rod axial force visual monitoring and early warning device and monitoring and early warning method thereof
  • Anchor rod axial force visual monitoring and early warning device and monitoring and early warning method thereof
  • Anchor rod axial force visual monitoring and early warning device and monitoring and early warning method thereof

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Effect test

Embodiment 1

[0042] Embodiment 1, a visual monitoring and early warning device for the axial force of a bolt, such as figure 1 and 5 As shown, the top cover 1 and the bottom cover 2 are included, the anchor rod 8 passes through the top cover 1 and the bottom cover 2, the end of the anchor rod 8 is provided with a nut 6, and the top cover 1 and the bottom cover 2 are clamped between the nut 6 and the rock. Between the body and the top cover 1 can slide up and down in the bottom cover 2.

[0043] Such as figure 2 As shown, a rotating shaft 4 and a compression spring 5 are arranged between the top cover 1 and the bottom cover 2, and the two ends of the rotating shaft 4 are respectively connected to the top cover 1 and the bottom cover 2 in rotation, and the rotating shaft 4 can be opposite to the top cover 1 and the bottom cover. 2 Horizontal rotation. Such as Figure 4 As shown, the center of the rotating shaft 4 is provided with a shaft hole 4-2, such as image 3 As shown, the top co...

Embodiment 2

[0047] Embodiment 2, a visual monitoring and early warning device for the axial force of a bolt. The early warning mark on the fan blade 4-3 includes at least one axial force threshold range, which can pass through the detection hole under different stress states of the bolt 8. 1-3 Different axial force threshold intervals were observed.

[0048] Other structures of this embodiment are the same as those of Embodiment 1.

Embodiment 3

[0049] Embodiment 3, a visual monitoring and early warning device for axial force of a bolt. Different patterns are set in different axial force threshold intervals. The patterns include barcodes or / and two-dimensional codes or / and images, and the patterns can be in any form. As long as it can meet the needs of differentiation.

[0050] Other structures of this embodiment are the same as those of Embodiment 2.

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Abstract

The invention discloses an anchor rod axial force visual monitoring and early warning device and a monitoring and early warning method thereof. The technical problems that an existing anchor rod axialforce monitoring device is high in cost, tedious in operation, limited in application range and the like are solved. The anchor rod axial force visual monitoring and early warning device comprises atop cover and a bottom cover; an anchor rod penetrates through the top cover and the bottom cover; a nut is arranged at the end part of the anchor rod; the top cover and the bottom cover are clamped between the nut and a rock mass; a rotating shaft and a compression spring are arranged between the top cover and the bottom cover; two ends of the rotating shaft are rotationally connected with the top cover and the bottom cover respectively; a clockwork spring is arranged between the rotating shaft and the top cover or / and the bottom cover, a sliding groove is formed in the rotating shaft, the groove bottom of the sliding groove is a rotating slope, a sliding column connected with the rotating slope in an abutting mode is arranged on the top cover or the bottom cover, fan blades are arrangedon the rotating shaft, early warning marks are arranged on the fan blades, and monitoring holes corresponding to the early warning marks are formed in the top cover or / and the bottom cover. The anchorrod axial force visual monitoring and early warning device is low in cost, simple to operate and wide in application range.

Description

technical field [0001] The invention belongs to the technical field of axial force monitoring devices, in particular to a visual monitoring and early warning device for axial force of a bolt and a monitoring and early warning method thereof. Background technique [0002] Anchor is a rod system structure for rock and soil reinforcement. One end is connected to engineering structures, and the other end goes deep into the ground. Through the longitudinal tension of the anchor rod body, the stability of rock and soil is realized. During the service period of bolted slopes, foundation pits, mines, mines, tunnels, and underground projects, timely and accurate monitoring of the bolting quality is very important for the stability of the structure and the safety of the project. significance. [0003] In order to monitor the bolt axial force accurately and effectively, many researchers have proposed a large number of monitoring principles and methods, such as fiber grating bolt dynam...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L1/04
CPCG01L1/042
Inventor 毕程程白中坤李鹏于少辉李洋王宁王薛霞李明芳
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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