Distribution patterns of rock mass displacement in deeply buried areas induced by active fault creep slip at engineering scale

作     者：ZHANG Chuan-qing LIU Xiao-yan ZHU Guo-jin ZHOU Hui ZHU Yong WANG Chao 张传庆;刘小岩;朱国金;周辉;朱勇;王超

作者机构：State Key Laboratory of Geomechanics and Geotechnical EngineeringInstitute of Rock and Soil MechanicsChinese Academy of SciencesWuhan 430071China University of Chinese Academy of SciencesBeijing 100049China Power China Kunming Engineering Corporation LimitedKunming 650000China 

基　　金：Project(U1865203)supported by the Key Projects of the Yalong River Joint Fund of the National Natural Science Foundation of China Projects(41941018,51879135)supported by the National Natural Science Foundation of China 

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

年 卷 期：2020年第27卷第10期

页      码：2849-2863页

摘      要：Active fault creep slip induces deformation of rock mass buried deeply in fault zones that significantly affect the operational safety of long linear projects passing through *** distribution patterns of rock masses in active fault zones which have been investigated previously are the key design basis for such ***,a discrete element numerical model with different fault types,slip time,dip angles,and complex geological features was established,and then the creep slip for normal,reverse,and strike-slip faults were simulated to analyze the displacement distribution in the fault rock mass.A disk rotation test system and the corresponding laboratory test method were developed for simulating rock mass displacement induced by creep slippage of faults.A series of rotation tests for softand hard-layered specimens under combined compression and torsional stress were conducted to verify the numerical results and analyze the factors influencing the displacement *** S-shaped displacement distribution independent of fault dip angle was identified corresponding to reverse,normal,and strike-slip *** results indicated that the higher the degree of horizontal extrusion,the softer the rock mass at the fault core,and the higher the degree of displacement concentration in the fault core;about 70%of the creep slip displacement occurs within this zone under 100 years of creep slippage.

主 题 词：active faults creep slip displacement distribution patterns discrete element rotation test 

学科分类：0810[工学-土木类] 081406[081406] 0806[工学-电气类] 081401[081401] 08[工学] 0805[工学-能源动力学] 0703[理学-化学类] 0814[工学-地质类] 0812[工学-测绘类] 082301[082301] 0823[工学-农业工程类] 

核心收录：

D　O　I：10.1007/s11771-020-4514-8

馆 藏 号：203988827...