Effective stress law for rock masses and its application in impoundment analysis based on deformation reinforcement theory

作     者：CHENG Li LIU Yao-ru PAN Yuan-wei YANG Qiang LV Zheng 程立;刘耀儒;潘元炜;杨强;吕征

作者机构：State Key Laboratory of Hydroscience and Hydraulic Engineering(Tsinghua University)Beijing 100084China Schlumberger Technologies(Beijing)Ltd.Beijing 100015China 

基　　金：Projects(51323014,51479097,51279086)supported by the National Natural Science Foundation of China Project(2016-KY-2)supported by the State Key Laboratory of Hydroscience and Hydraulic Engineering,China 

出 版 物：《Journal of Central South University》 (中南大学学报（英文版）)

年 卷 期：2018年第25卷第1期

页      码：218-229页

摘      要：Reservoir impoundment is related to several hydraulic engineering concerns,including irreversible valley contractions,landslides and reservoir-induced ***,these phenomena,such as valley contractions,are hardly to be explained by the conventional *** scientific understanding of water effects during impoundment and their hazards to hydraulic structure are *** effective stress law for fissured rock masses is introduced in the elasto-plastic model employing the Drucker-Prager criterion and implemented in the three dimension(3D)nonlinear finite element method(FEM)program Three-dimensional FINite Element(TFINE).The slope deforms towards river-way during impoundment since the increasing pore pressure in fissures changes stress state and leads to additional plastic deformation in the rock *** value of Biot coefficient and the influence of water on rock materials are discussed in ***,the mechanism of slope deformation during the impoundment of Jinping-I arch dam is revealed,and the deformation is accurately *** application of the effective stress law provides a method to consider stress assessment,deformation evaluation and stability estimate of hydraulic structures during the impoundment *** is a beneficial exploration and an improvement of hydraulic engineering design.

主 题 词：effective stress law elasto-plastic FEM model Biot coefficient impoundment valley contractions 

学科分类：081504[081504] 08[工学] 0815[工学-矿业类] 

核心收录：

D　O　I：10.1007/s11771-018-3731-x

馆 藏 号：203283066...