Research on experiment and numerical simulation for similar material specimensof parallel multi-joint rock mass

被引：0

作者：

Zhao, Chenglong ^{[1
]}

Zhu, Weishen ^{[1
,2
]}

Li, Shucai ^{[1
,2
]}

Zhang, Dunfu ^{[2
]}

机构：

[1] Shandong University, Research Center of Geotechnical and Structural Engineering, Jinan, China

[2] Shandong University, School of Civil and Hydraulic Engineering, Jinan, China

来源：

Energy Education Science and Technology Part A: Energy Science and Research | 2014年 / 32卷 / 06期

关键词：

Rock mechanics - Deformation - Polyvinyl chlorides - Fracture mechanics - Compression testing - Numerical methods - Numerical models;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

A rock-like cement mortar material with high strength, convenient matching, and high brittleness isadopted to conduct compression tests and the multi-joint specimen is prepared by pre-embedding PVC sheets. The expansion and penetration processes of multiple joints are studied, and the impact of joints on rock mechanical properties is discussed. The test results show that the specimen failure process is mainly divided into four stages, that the jointed specimen and complete specimen have different crack initiation positions and significantly distinct failure modes, that the weakening effect on rock strength is connected with the number of joints, and that the specimen's post-peak deformability is enhanced. The discontinuous deformation analysis for rock failure (DDARF) method is adopted to conduct numerical simulation on the preceding test. The simulation results agree well with the test. © Sila Science. All Rights Reserved.

引用

页码：4699 / 4706