Effect of heterogeneity on occurrence of zonal disintegration around deep underground openings

• 作 者: Jia Peng Zhu Wancheng Zhang Sh
• 机 构: CollegeofResourcesandCivilEngineering
• 出 处: 矿业科学技术学报：英文版
• 发表日期: 2014年6期
• 关键词: 异质性 地下洞室 深部 分区 碎裂 FLAC3D 拉伸破坏 数字代码 Deep rock mass Heterogeneity Zonal disintegra
• 基金项目: This work was supported by the National Natural Science Foun- dation of China （Nos. 51304036, 51222401 and 51174045）, the Fundamental Research Funds for the Central Universities of China（Nos. N1201010

By utilizing the two numerical codes RFPA3 D and FLAC3 D, the effect of heterogeneity on failure mode and failure mechanism of rock around deep underground excavations under tri-axial stress is analyzed. It is found that zonal disintegration is a large sc