基于LUSAS的水工隧洞衬砌计算分析  

Calculation and Analysis of Hydraulic Tunnel Lining Project Based on LUSAS

作　　者：陈晓年[1] 王美斋[1] 肖豫[1] 

机构地区：[1]黄河勘测规划设计有限公司,河南郑州450003

出　　处：《人民黄河》2013年第4期118-119,共2页Yellow River

摘　　要：以国外某引水式电站引水隧洞为例,采用大型有限元程序LUSAS,以美国规范为标准进行隧洞衬砌的有限元计算。计算结果很好地反映了隧洞衬砌结构的受力情况,隧洞在围岩压力、水压力、自重等荷载作用下,在内水压力不大的情况下以受压为主,此时衬砌结构为偏心受压构件,主要由轴力控制,且最大轴力一般发生在衬砌的底部,若能增大此处混凝土的受压面积则可有效减少配筋。Taking a foreign diversion tunnel of a diversion power station as an example, using the large finite element program LUSAS and according to the United States of Ameriea standards, the paper calculated tunnel lining by finite element method. The calculation results reflect the stress eon- dition of tunnel lining structure. In the aetion of surrounding rock pressure, water pressure and self-weight, the tunnel mainly receives eompression under small internal water pressure. The lining structure mainly for eccentric eompression members, mainly eontrolled by the axial force, and the maximum axial torce generally occurs in the lining bottom. Therefore, increasing the compression area of concrete can reduce reinforcement.

关 键 词：LUSAS 水工隧洞 混凝土衬砌 内力配筋 

分 类 号：TV672[水利工程—水利水电工程]