A deep rock mass blasting stress-strain visualization device and method

By using transparent rock specimens, a true triaxial dynamic and static loading system, high-pressure mixed oil blasting, and a dynamic photoelastic observation system, the problems of high ground stress simulation and optical observation interference in deep rock blasting were solved, and full-field visualization observation of the deep rock and soil blasting process was realized.

CN122409384APending Publication Date: 2026-07-17NANJING TECH UNIV +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NANJING TECH UNIV
Filing Date
2026-05-19
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies are insufficient to realistically simulate high ground stress environments in deep rock blasting, and optical observations during blasting are affected by explosion light and debris, resulting in significant discrepancies between experimental results and actual field conditions.

Method used

By employing transparent rock specimens, a transparent true triaxial dynamic-static combined loading system, a high-pressure mixed oil blasting system, and a dynamic photoelastic observation system, combined with a synchronous control and data analysis system, we can achieve three-dimensional stress field simulation of deep rock and soil and visualization of the entire blasting stress-strain process.

Benefits of technology

It enables full-field, real-time, and quantitative visualization of the blasting process in deep rock and soil, avoiding interference from explosion light and debris, and improving the accuracy and reliability of experimental data.

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Abstract

本发明公开了深部岩土体爆破应力应变可视化装置,包括透明岩石试件、透明真三轴动静组合加载系统、高压混合油爆破系统、动态光弹观测系统和同步控制与数据分析系统,高压混合油爆破系统包括设置在透明岩石试件中心的储油腔体、高速电磁阀、爆破触发阀及爆破孔,储油腔体内储存有高压混合油,且储油腔体通过管路依次经由所述高速电磁阀、爆破触发阀与爆破孔连通,用于在触发时将高压混合油瞬时注入爆破孔以产生冲击波。本发明利用动静耦合加载系统模拟深部岩体的高地应力状态,反应深部爆破环境,搭配高速相机与光学过滤系统捕捉爆破应力波传播过程,直观呈现试样破坏全过程;通过高压油物理释放方式规避爆炸光、碎屑干扰,提升动态光弹成像效果。
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