Establishing time-dependent model of deformation modulus caused by bedrock excavation rebound by inverse analysis method
Establishing time-dependent model of deformation modulus caused by bedrock excavation rebound by inverse analysis method作者机构：1. Hohai University Nanjing 210098 China 2. National Engineering Research Center of Water Resources Efficient Utilization and Engineering Safety Nanjing 210098 China 3. Nanjing Hydraulic Research Institute Nanjing 210029 China
出 版 物：《Science China(Technological Sciences)》 (中国科学（技术科学英文版）)
年 卷 期：2008年第51卷第S2期
页 面：1-7页
核心收录：
学科分类：081803[工学-地质工程] 08[工学] 0818[工学-地质资源与地质工程]
基 金：Supported by the National Natural Science Foundation of China (Grant Nos.50539110, 50809025,50539010,50579010,50539030) the National Science and Technology Supporting Plan (Grant Nos.20006BAC14B03,2008BAB29B06,2008BAB29B03)
主 题：dam base rebound deformation modulus inverse analysis method time-dependent model Xiaowan Hydropower Station
摘 要：Rock rebound relaxation deformation,or even rock burst,caused by the excavation of dam base and abutment or high rock slope affects their stability and results in the fall of mechanical properties of the *** an inverse analysis method was proposed in this paper to establish the time-dependent model of deformation modulus caused by excavation *** basic principle is based on the combination of observed data of the excavation rebound deformation of dam abutment or rock slope,and the calculated rebound deformation by FEM under ground stress at the corresponding time in the excavation *** norm of the residuals of observed data and calculated data are taken as the objective ***,the time-dependent model of bedrock deformation modulus can be *** method displays its significance in the design of excavation,construction and operation management of dam base and high slope.
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