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Anchor rod or anchor rope support stress test method and device

A technology for anchor cable support and stress testing, which is applied in the direction of measuring devices, using stable torsion to test material strength, and applying stable tension/compression to test material strength, etc., can solve the stress test of anchor rod or anchor cable support There is no effective way to achieve the effect of easy operation and realization, low cost, and scientific and reasonable design

Inactive Publication Date: 2011-02-02
TIANDI SCI & TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is no effective way to test the supporting stress of anchor rods or anchor cables at home and abroad.

Method used

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  • Anchor rod or anchor rope support stress test method and device
  • Anchor rod or anchor rope support stress test method and device
  • Anchor rod or anchor rope support stress test method and device

Examples

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Embodiment Construction

[0032] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0033] Such as figure 1 Shown is the flow chart of the anchor rod or anchor cable support stress testing method of the embodiment of the present invention, and the present embodiment includes the following steps:

[0034] Step 10, grinding the coal rock samples selected in the coal mine into coal rock powder, and mixing the coal rock powder with water and additives to make filling materials;

[0035] In this step, coal rock samples are selected in the coal mine, and the coal rock samples are screened and ground to make coal rock powder. The selected additives are used to bond the coal rock powder to simulate the strength of the coal rock mass in the coal mine. The additiv...

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PUM

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Abstract

The invention discloses an anchor rod or anchor rope support stress test method and device. The method comprises the following steps: preparing coal powder through the coal selected from a coal well, mixing the coal powder, water and additive to obtain filling material; preparing solid model through the filling material; installing a plurality of anchor rods or anchor ropes on one surface of the model; embedding a stress sensor between the anchor rods or anchor ropes; fixing the anchor rods on the model through screws, or fixing the anchor ropes on the model through anchoring members; installing a support plate between the screws or anchoring members and model, installing an anchor rod or anchor rope force tester between the support plate and the model, installing a plurality of displacement sensors on the support plate; using a torque spanner to perform hierarchical load to the anchor rods or using expansion device to perform hierarchical load to the anchor ropes, and recording the load and indications of the stress sensor and displacement sensor until reaching the maximal load of the anchor rods or anchor ropes. The invention can effectively test the support stress of anchor rods or anchor ropes and is easy to implement.

Description

technical field [0001] The invention relates to the field of mine support, in particular to a stress testing method and device for anchor rod or anchor cable support. Background technique [0002] Bolt support technology has been widely used at home and abroad, because the bolt support significantly improves the roadway support effect, reduces the roadway support cost, and reduces the labor intensity of workers, so the bolt support technology is an important tool for coal mines to achieve efficient production one of the key technologies. [0003] The stress on the anchor rod or anchor cable body has been studied at home and abroad, and the force monitoring on the anchor rod or anchor cable can be carried out not only in the laboratory, but also in the underground environment. The traditional method of laboratory force testing for anchor rods or anchor cables is to insert anchoring agent into a steel pipe of rated size, insert the anchor rod or anchor cable into the steel pi...

Claims

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Application Information

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IPC IPC(8): G01N3/08G01N3/02G01N3/22G01L1/00
Inventor 康红普吴拥政蔡嘉芳
Owner TIANDI SCI & TECH CO LTD
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