地下洞室块体稳定安全标准及其应用的研究  

Study on Safety Standard and its Application of Block Stability in Underground Caverns

作　　者：石广斌[1] 王明疆[2] 赵靖伟[2] SHI Guangbin;WANG Mingjiang;ZHAO Jingwei(Xi＇an University of Architecture and Technology,Xi＇an 710054,China;Powerchina Northwest Engineering Corporation Limited,Xi＇an 710065,China)

机构地区：[1]西安建筑科技大学,西安710054 [2]中国电建集团西北勘测设计研究院有限公司,西安710065

出　　处：《西北水电》2018年第5期39-44,共6页Northwest Hydropower

基　　金：科研项目:中国电建集团重大科技项目;合同编号: CHC-KJ-2010-08

摘　　要：块体理论在大型地下洞室围岩稳定和岩质边坡稳定分析中已得到广泛应用,但到目前为止,国内外对块体的稳定评价还没有一个系统的安全标准。文章通过对工程规范规定的边坡滑动稳定安全系数和已建工程块体稳定分析所采用的安全系数的统计与分析、块体类别及其稳定性工况分析、影响块体稳定因素等一系列的专项分析和研究,提出了一个系统的块体安全评价标准,经工程实践检验是可行的。本次研究所取得的成果对工程规范在此方面的修订,具有重要的参考价值。The block theory is widely applied in stability analysis of surrounding rock of large underground caverns and rock slopes. As of today, but, no one systematic standard for the block stability assessment is available in China and abroad. Through statistic and analysis on safety factors for the sliding slope stability specified in codes and these applied in the block stability analysis of the built projects,block types and analysis on the operating conditions for stability, factors impacting block stability, a systematic standard for block safety assessment is proposed. It is proved feasible through engineering practice. These study achievements are with significant value for code revision in this regard.

关 键 词：地下洞室 块体 稳定评价 安全标准 

分 类 号：U453.2[建筑科学—桥梁与隧道工程] TU452[交通运输工程—道路与铁道工程]