山岭隧道层状岩体岩爆机理与防控技术研究  

Mechanism and Prevention-control Technology of Rock Burst in Layered Rock Mass of Mountain Tunnel

作　　者：邹翀 潘岳 王华 ZOU Chong;PAN Yue;WANG Hua(Guangdong Provincial Key Laboratory of Intelligent Monitoring and Maintenance of Tunnel Structure,Guangzhou,Guangdong 511458,China;China Railway Tunnel Consultants Co.,Ltd.,Guangzhou,Guangdong 511458,China)

机构地区：[1]广东省隧道结构智能监控与维护企业重点实验室,广东广州511458 [2]中铁隧道勘察设计研究院有限公司,广东广州511458

出　　处：《施工技术（中英文）》2022年第18期90-95,共6页Construction Technology

基　　金：中国中铁股份有限公司科技研究开发计划重大专项:高原超长深埋极端复杂地质隧道钻爆法修建技术体系与应用(cz02-专项-02);中国中铁股份有限公司科技研究开发计划重点课题:高地应力隧道解重构理论与技术深化研究(2021-重点-44)。

摘　　要：岩体中结构面的存在降低了岩体的完整性与整体强度,对岩体的力学特性起着控制性作用,对岩爆的产生也有着不可忽视的影响。某山岭隧道围岩发育有大量产状近水平的结构面,在极高地应力作用下,岩爆频繁发生。以某山岭隧道岩爆案例作为分析对象,建立了层状岩体脆断失稳的临界应力计算公式,结合能量理论分析研究了层状岩体发生岩爆的力学机制和影响因素,在此基础上提出了岩爆防控措施。The existence of structural planes in rock mass reduces the integrity and overall strength of rock mass. The mechanical properties of the rock mass play a controlling role and also have a significant influence on the occurrence of rock burst. A large number of near horizontal structural planes are developed in the surrounding rock of a mountain tunnel, and rock burst occurs frequently under the action of extremely high in-situ stress. In this paper, based on the formula of critical stress for brittle fracture instability of layered rock mass, the mechanical mechanism and influencing factors of rock burst are analyzed and studied combined with energy theory. On this basis, the prevention-control measures of rock burst are put forward.

关 键 词：隧道工程 层状岩体 岩爆 机理 防控 

分 类 号：U458[建筑科学—桥梁与隧道工程]