摘要
对正阳隧道的Ⅳ级围岩情况下的围岩和支护结构的稳定性进行了二维的平面弹塑性有限元计算,分析了围岩中的应力、变形、塑性区以及初期支护和二次衬砌结构的承载能力,得出了相应的结论,为二车道分离式隧道支护参数的优化设计提供了参考依据。
It makes 2-D plastic limit unit calculation on the stability of tunnel rock and supporting structure under Zhengyang IV rock conditions, analyzes the stress, deforming, plastic area, early protection as well as secondary brick structure capacity, draws relative conclusions, can be reference for optimized design of double-way separated supporting parameters.
出处
《山西建筑》
2007年第29期301-302,共2页
Shanxi Architecture
关键词
隧道
有限元分析
围岩
支护结构
应力
tunnel, limit unit analysis, rock, supporting structure, stress
