摘要
膨胀岩特殊的物理力学性质给隧道带来严重的工程问题。以秀山隧道为工程背景,通过理论推导得到了湿度应力场和温度应力场之间的关系,并且利用有限元软件的温度应力模块模拟得到了不同膨胀级别、不同加固范围、不同膨胀范围时不同断面形式下支护结构的受力特征,优化了支护断面形状。
The special physical and mechanical properties of expansive surrounding rock result in great construction difficulties in the construction of tunnels. With the Xiushan Tunnel as a practical engineering example, the relationship between the temper- ature stress field and the moisture stress field is theoretically deduced in the paper,with the temperature stress module of the fi- nite element analysis software used to simulate the various forced characteristics of the supporting structures with different forms of cross-section,in the surrounding rock of different expansiveness, with different reinforced ranges and different expan- ding ranges so as to optimize the shape of the supporting cross-section.
出处
《国防交通工程与技术》
2015年第3期25-28,共4页
Traffic Engineering and Technology for National Defence
关键词
膨胀岩隧道
温度应力场
数值计算
支护结构
断面优化
tunnels in expansive surrounding rock
temperature stress fields
numerical calculation
supporting structures
opti-mization of the cross-section
