摘要
岩爆作为深埋隧洞开挖后常见的一种地质灾害,严重威胁着施工人员和现场设备的安全。从岩性与应力两个方面入手,结合实际情况和现场试验,采用可拓综合评判对某隧道岩爆等级进行预测。岩性方面的指标采用现场岩石力学试验确定,应力方面的指标采用空芯包体法地应力测量和有限元数值模拟计算确定,通过对比分析和现场实际验证,该评价结果合理,对后期施工起到了很好的指导作用。
Rock-burst is a hazard for highly buried tunnels and cravens, which always threatens the safety of workers and the equipment. Both the lithology and the geostress combined with field test were mainly considered to predict the rock-burst level of a hydro-tunnel. The lithology parameters were determined by rock mechanics and the geostress pa- rameters were determined by measurement using the hollow inclusion method and FEM simulation. The method proved to be good for guiding the construction by the comparison of prediction and field results.
出处
《山东大学学报（工学版）》
CAS
北大核心
2012年第2期58-63,共6页
Journal of Shandong University（Engineering Science）
关键词
水工隧洞
岩爆
可拓综合评判
高地应力
hydro-tunnels
rock-burst
extensible comprehensive evaluation
high geostress
