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http://dx.doi.org/10.7474/TUS.2015.25.4.359

Pattern of Shear-induced Fracture Development in en Echelon Array : Discrete-element Approach  

Kwon, Soondal ((주)희송지오텍 자원환경사업부)
You, Seungwan (대우인터내셔널 석유가스탐사실)
Kwon, Sanghoon (연세대학교 지구시스템과학과)
Kim, Ki-seog ((주)희송지오텍)
Publication Information
Tunnel and Underground Space / v.25, no.4, 2015 , pp. 359-372 More about this Journal
Abstract
Rock masses include various rock discontinuities such as faults, joints, and bedding planes. These discontinuities appear as complex structures in geometry. In this study, growth patterns of fractures between two stepping shear fracture tips are numerically modeled using PFC2D (Particle Flow Code). The numerical model showed not only incipient growth of fractures at the tips of preexisting fractures but also subsequent growth of the new fractures. It is observed from all of the experiments that the incipient fractures are tensile cracks developed at $30{\sim}57^{\circ}$ to the preexisting fractures and the subsequent growth of these fractures were at low angles to the preexisting fractures this study.
Keywords
Shear fracture; Discrete-element code; PFC; Numerical experiment; Fracture growthoints set;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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