Effect of seismic waves on the hydro-mechanical properties of fractured rock masses

作     者：Meysam Lak Alireza Baghbanan Hamid Hashemolhoseini Meysam Lak Alireza Baghbanan Hamid Hashemolhoseini

作者机构：Department of Mining Engineering Isfahan University of Technology (IUT) Isfahan Iran Department of Civil Engineering Isfahan University of Technology (IUT) Isfahan Iran 

出 版 物：《Earthquake Engineering and Engineering Vibration》 (地震工程与工程振动（英文刊）)

年 卷 期：2017年第16卷第3期

页      面：525-536页

核心收录：

学科分类：070801[理学-固体地球物理学] 07[理学] 0818[工学-地质资源与地质工程] 0708[理学-地球物理学] 0815[工学-水利工程] 0813[工学-建筑学] 0802[工学-机械工程] 0814[工学-土木工程] 0801[工学-力学（可授工学、理学学位）] 

主　　题：wave transmission earthquake dynamic analysis discrete fracture network permeability UDEC 

摘      要：The transmission of seismic waves in a particular region may influence the hydraulic properties of a rock mass, including permeability, which is one of the most important. To determine the effect of a seismic wave on the hydraulic behavior of a fractured rock mass, systematic numerical modeling was conducted. A number of discrete fracture network（DFN） models with a size of 20 m × 20 m were used as geometrical bases, and a discrete element method（DEM） was employed as a numerical simulation tool. Three different boundary conditions without（Type Ⅰ） and with static（Type Ⅱ） and dynamic（Type Ⅲ） loading were performed on the models, and then their permeability was calculated. The results showed that permeability in Type Ⅲ models was respectively 62.7% and 44.2% higher than in Type I and Type Ⅱ models. This study indicates that seismic waves can affect deep earth, and, according to the results, seismic waves increase the permeability and change the flow rate patterns in a fractured rock mass.