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Test bench for prestressed anchor cable anchorage

A technology of prestressed anchor cables and test benches, which is applied in the field of mechanical test benches, can solve problems such as complex service conditions and inability to test the service life of anchor cables and anchors, and achieve the effect of accurate calculation data

Inactive Publication Date: 2011-06-08
SHANDONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Coupled with the increasingly complex service conditions, relying on the current simple static load tension and relaxation tests can no longer make a reasonable and safe test for the service life of anchor cables and anchors.

Method used

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  • Test bench for prestressed anchor cable anchorage
  • Test bench for prestressed anchor cable anchorage
  • Test bench for prestressed anchor cable anchorage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] Such as figure 1 As shown, the prestressed cable anchor mechanical performance test bench of the present invention is composed of a static load hydraulic pump station 18, a fatigue load loading power source device 19, a test bench clamping device, a data detector 22 and a computer 21. among them:

[0017] The static load hydraulic pump station 18 adopts a traditional hydraulic pump station with a working pressure greater than 5MP.

[0018] The fatigue load loading power source device 19 is a device that applies dynamic load to the anchor cable anchor. The structure of the fatigue load loading power source device 19 is as figure 2 Shown. It is mainly composed of a motor 24, a belt transmission device 25 (including two pulleys and a belt), a crank 26, a connecting rod 27, a piston pump cylinder 28 and a piston 29. The motor 24 connects the motor shaft with the first pulley shaft through the flat key, and transmits torque to the second pulley through the belt; the second pu...

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PUM

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Abstract

The invention discloses a test bench for a prestressed anchor cable anchorage, which comprises a static load hydraulic pump station, a fatigue load loaded power source device, a test bench clamping device, a data detecting instrument and a computer; when the static load hydraulic pump station is started, a pull force is generated to the prestressed anchor cable anchorage by a piston to carry out a static pressure loading test; and when the fatigue load loaded power source device is started, a dynamic pressure is generated by a piston pump to generate a pulsating load with a certain frequency for the piston to carry out a dynamic pressure loading test. The test bench solves the problem of static load pull force and fatigue detection of the anchor cable anchorage and has accurate and visualdata through the computation of a computer program, thereby analyzing and predicting the safe service life of the prestressed anchor cable anchorage and performing an important action on effectively reinforcing geotechnical engineering.

Description

Technical field [0001] The invention relates to a mechanical test bench. Background technique [0002] Prestressed anchor cable technology is one of the fastest growing and most widely used slope protection technologies in recent years. Especially for mountainous expressways, sections with a large number of excavations in subgrade engineering, high cutting slopes, and poor geological conditions, generally use prestressed anchor cable ground beams, which are used to fix the steel strands in the deep stable ground through drilling and grouting. In the structure, the steel strand is stretched on the surface to be reinforced to generate prestress to reinforce the rock and soil to reach a stable state or improve the structure of the internal stress condition to ensure the stability of the high slope of the roadbed. [0003] With the development of pre-stress technology in China, pre-stressed cable anchors have been widely promoted in construction and construction, so the mechanical per...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/10G01N3/34G01M13/00
Inventor 张建中胡建明栾兆群宋庆军
Owner SHANDONG UNIV OF SCI & TECH
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