地质通报2012，Vol.31Issue(2)：337-342,6.
典型隧道断面形态对拟建滇西大理至瑞丽铁路高黎贡山隧道稳定性影响的数值模拟分析
Stability analysis of tunnels of the Gaoligong Mountain for Dali-Ruili railway, western Yunnan Province
摘要
Abstract
The Dali-Ruili railway constitutes the critical part of the Trans-Asian railway system. It runs through the southern stretch of the Hengduan Mountains with complicated topographic and geological conditions. The engineering stability of the Gaoligong Mountain deep-lying extra-long tunnel has long been a thorny problem affecting route choice and road construction. Based on regional geology, stress measurements, and rock mechanism, the authors conducted finite element calculation of the stress distribution of tunnel profiles, created stress-distribution images, and evaluated the impact of the shape of the tunnel profile on stress distribution, by using ANSYS software. The authors also made an analysis of country rock stability from different tunnel profiles and calculated the ratio between the strength and the stress of the wall rock. In the end, a comprehensive estimation is made concerning tunnel stability on different profiles, and some key problems are put forward which deserve attention in tunnel design and construction.关键词
大理-瑞丽铁路/高黎贡山超长深埋隧道/有限元分析/隧道稳定性/应力计算Key words
Dali-Ruili railway/ Gaoligong Mountain tunnel/ finite element analysis/ tunnel stability/ stress calculation分类
建筑与水利引用本文复制引用
王薇,王连捷,孙东生,吴中海,乔子江..典型隧道断面形态对拟建滇西大理至瑞丽铁路高黎贡山隧道稳定性影响的数值模拟分析[J].地质通报,2012,31(2):337-342,6.基金项目
中国地质调查局地质调查项目《泛亚铁路大理至瑞丽沿线地质构造综合研究》(编号:1212010814054)、《云南1∶5万马厂幅、道街坝幅区域地质调查》(编号:1212010784004)和基本科研业务费项目《成果集成与战略研究(2011-2012》(编号:DZLXJK201113) （编号:1212010814054）
