一种可视化的锚杆室内拉拔试验装置和试验方法

By designing a visualized indoor pull-out test device for anchor bolts, and combining confining pressure loading and multiple monitoring systems, the problem of the inability to simulate stress environment and monitor strain across the entire range in existing technologies has been solved. This enables dynamic monitoring of anchor bolts under different stress environments and research on the action mechanism of various types of anchor bolts.

CN116754367BActive Publication Date: 2026-07-17CHINA RAILWAY 18TH BUREAU GRP CO LTD +3

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA RAILWAY 18TH BUREAU GRP CO LTD
Filing Date
2023-05-24
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies lack a testing device that can simulate different stress environments in anchor pull-out tests, is applicable to various types of rock and soil materials, observe the effects of different pull-out rates, and achieve real-time monitoring of strain across the entire range.

Method used

A visualized indoor pull-out test device for anchor bolts is provided, including a confining pressure loading system, an anchor bolt pull-out system, and a strain monitoring system. Utilizing a three-dimensional frame, loading jacks, a transparent loading plate, stress monitors, strain monitors, and a non-contact full-field strain monitor, it simulates the actual engineering environment and monitors the strain changes of the anchor bolts and rock mass in real time.

Benefits of technology

It enables dynamic monitoring of anchor bolts under different stress environments, observes the impact of different pull-out rates on the anchoring system, is suitable for studying the action mechanism of various types of anchor bolts, and has a simple structure and is easy to operate.

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Abstract

本发明公开了一种可视化的锚杆室内拉拔试验装置和试验方法,装置的围压加载系统的立体框架内设置有加锚岩体,透明加载板围设在加锚岩体的横向外周各侧面,各加载千斤顶的活动杆与透明加载板连接,加锚岩体内设置有定位孔道,锚杆拉拔系统的待测锚杆穿设在定位孔道内并通过浆体固定,拉拔千斤顶与待测锚杆连接;监测系统的应力监测器用于监测待测锚杆的应力值,应变监测器用于监测加锚岩体的应变值,非接触全场应变监测器用于监测加锚岩体的平面应变场变化。本发明所提供的装置能够反映真实的应变场变化,且围岩在锚杆施加、作用过程中的应力应变动态变化能实现同步监测,适合于开展不同拉拔速率影响的研究。
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