Dynamic performance testing system

Abstract

The invention discloses a dynamic performance testing system, which is used for testing dynamic performance of an anchor rod or an anchor cable and comprises a main unit and a testing control device. The main unit comprises a vertical framework, a clamping device, a hammer dropping device, a lifting device and a protection device, wherein the clamping device is arranged on the top of the vertical framework and used for clamping the top end of a sample perpendicularly, the bottom end of the sample is provided with a tray, the hammer dropping device is used for dropping a hammer from a set height of the vertical framework to impact the tray, the lifting device is used for lifting the hammer dropping device at the bottom of the vertical framework to a set height, the protection device is used for physical protection and isolation so as to reduce personal harms and noise. The testing control device is used for controlling parameter selection, lifting and dropping of hammer dropping of the hammer dropping device, analyzes real-time impact data sensed by a force sensor of the tray when the hammer drops perpendicularly from the force sensor and outputs testing results. The dynamic performance testing system has advantages of universality and accurate and reliable testing results.

Description

technical field [0001] The invention relates to a dynamic performance testing system, in particular to a dynamic performance testing system for indoor testing of the dynamic performance of constant-resistance large-deformation anchors (cables) and other common anchors (cables). Background technique [0002] In recent years, with the rapid development of the national economy, the demand for energy from all walks of life is increasing. my country's open-pit mines have gradually entered the deep mining stage, involving a large number of slopes, active faults, and caverns in the fields of mining, water conservancy, and transportation. Surrounding rock stability issues. [0003] At present, our country is in a period of rapid development of various engineering constructions, and many disasters have also occurred in the process of mining of mineral resources and underground engineering construction: such as rock bursts, rock bursts, landslides and other disasters. For the control ...

AI Technical Summary

Problems solved by technology

However, since the instability of most rock and soil reinforcement structures is caused by large elastic-plastic deformation, the support and reinforcement concept based on the traditional prestressed anchor (cable) system has been unable to adapt to rock and soil (slope rock mass, tunnel surrounding rock, etc.) ) large deformation evolution law, resulting in accidents such as part of the end of the anchor rod breaking, the middle part of the anchor cable (rod) breaking, multiple repairs in the support area, and the failure of the steel frame torsion and failure during the roadway support process.

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