A review of fracture mechanic behaviors of rocks containing various defects
作者机构：Department of Geotechnical EngineeringCollege of Civil EngineeringTongji UniversityShanghai 200092China Key Laboratory of Geotechnical and Underground EngineeringMinistry of EducationTongii UniversityShanghai 200092China
出 版 物：《Underground Space》 (地下空间（英文）)
年 卷 期：2023年第12卷第5期
页 面：102-115页
核心收录：
学科分类：08[工学] 080104[工学-工程力学] 0815[工学-水利工程] 0801[工学-力学（可授工学、理学学位）]
基 金：supported by the National Key Research and Development Program of China (Grant No.2019YFC1509702)
主 题：Rock mechanics Preexisting defects Failure patterns Fracture characteristics
摘 要：The existence of defects in a rock mass is a vital factor complicating the mechanical response of the rock mass under *** characteristics of defects control the rock mass’s mechanical *** report reviews the experimental studies on the influence of simulating the internal defects of rock mass’s mechanical *** effects of preexisting defects(shape,size,number,angle,and other factors)on the mechanical properties and failure modes of the rock are investigated from the perspectives of rock failure and fracture *** fracture propagation mechanisms of different defective rock masses are analyzed by studying the stress state of different defective rock masses under uniaxial *** the defective rock samples with varying inclination angles are destroyed,the relationship among the compressive strength,the fracture propagation,and the failure characteristics is *** primary findings are as *** increase in the size and number of defects rapidly damages the mechanical properties of the rock and intensifies defect penetration and *** rock mechanics characteristics of fissured rocks with different inclination angles show two primary variations:one is a continuous increase,and the other is a decrease followed by an *** result is strongly related to the failure pattern of rocks with preexisting *** investigation is crucial for further studying the failure modes of complex defective rock masses and the geotechnical engineering related to defective rocks.
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