煤矿安全2019，Vol.50Issue(6)：266-271,6.DOI:10.13347/j.cnki.mkaq.2019.06.064
高地应力隧道爆破卸压残余应力方程验证研究
Verification Study on Residual Stress Equation of Pressure Relief in Blasting of High Ground Stress Tunnel
摘要
Abstract
High geo-stress rock burst has obvious characteristics such as suddenness, ejection and continuity, which is extremely harmful to tunnel construction. According to the preliminary calculation of the residual stress equation of blasting pressure in previous studies, combined with the actual case of rock burst in a tunnel of Sichuan-Tibet line, the theoretical method and numerical simulation FLAC3D method are used to analyze and summarize the residual stress variation law after tunnel blasting. The rationality and feasibility of the residual stress equation for pressure relief are verified. Comparing the results, it is found that the residual stress equation of blasting in hard rock and hard rock tunnel has good feasibility, and can better evaluate the application effect of blasting pressure relief.关键词
高地应力/岩爆/爆破卸压/残余应力/数值模拟Key words
high ground stress/rock burst/blasting and pressure relief/residual stress/numerical simulation分类
矿山工程引用本文复制引用
WEI Meng,YUAN Chenhan,JIANG Yong,SU Tao,YUAN Chenxin..高地应力隧道爆破卸压残余应力方程验证研究[J].煤矿安全,2019,50(6):266-271,6.基金项目
国家自然科学基金资助项目(41572358) （41572358）
