摘要
应用ANSYS结构分析软件,模拟了思林水电站通航建筑物高边坡的地形、地质条件以及开挖的过程,建立边坡开挖的有限元计算分析模型,分析边坡在自然状态、分级开挖以及锚杆支护加固等工况下的应力、变形及其整体稳定性。定义单元的局部安全系数,得到了边坡开挖加固后稳定安全系数的分布。根据计算成果,指出现设计加固措施可以保证边坡稳定,无需增加其他工程措施。
By use of the ANSYS,the software of finite element structure analysis,a finite element analysis model is set up for slope excavation,and the landform and geological condition and excavation process of Silin Hydropower Station’s navigation lock are simulated in detail.The stress,displacement and factor of safety of slope stability are analyzed under different conditions such as the natural condition,excavation step by step and reinforcement by anchor rod etc.Based on the definition of local factor of safety of element,the distribution of factor of safety of slope stability is obtained for before and after reinforcement during excavation.According to the calculation result,it is shown that the slope is stable under the designed engineering measure and without other reinforcement measure.
作者
徐力群
沈振中
俞凯加
吕军
XU Li-qun;SHEN Zhen-zhong;YU Kai-jia;LÜ Jun(College of Water Conservancy and Hydropower Engineering,Hohai University,Nanjing 210098,China;Guiyang Hydropower Investigation Design and Research Institute,Guiyang 550002,China)
出处
《岩土力学》
EI
CAS
CSCD
北大核心
2008年第S01期42-46,共5页
Rock and Soil Mechanics
关键词
岩体边坡
分级开挖
有限元
局部安全系数
稳定
rock slope
stage excavation
finite elements
local factor of safety
stability
作者简介
徐力群,男,1983年生,博士研究生,研究方向为水工结构工程。E-mail:xuliqun6.2@163.com
