NUMERICAL SIMULATION OF ROCK BREAKING MECHANISM BY DISC CUTTER

被引：0
|
作者：
Yu, Yue [1 ]
Tang, Chun-An [1 ]
Liang, Zheng-Zhao [1 ]
Su, Peng-Cheng [2 ]
Deng, Li-Ying [2 ]
机构：
[1] Dalian Univ Technol, Ctr Rock Instabil & Seism Res, Dalian 116024, Peoples R China
[2] North Heavy Ind Grp Ltd Co, Shenyang 110004, Peoples R China
来源：
CONTROLLING SEISMIC HAZARD AND SUSTAINABLE DEVELOPMENT OF DEEP MINES: 7TH INTERNATIONAL SYMPOSIUM ON ROCKBURST AND SEISMICITY IN MINES (RASIM7), VOL 1 AND 2 | 2009年
基金：
中国国家自然科学基金;
关键词：
FRAGMENTATION;
D O I：
暂无
中图分类号：
Q14 [生态学（生物生态学）];
学科分类号：
071012 ; 0713 ;
摘要：
In this study, the rock breaking mechanism by disc cutter was investigated by using numerical method-RFPA 2D. Rock fracture process induced by a single indenter, double indenters and three indenters were simulated respectively. There were about four stages, powder body appeared, the formation of the powder nuclear body, the initiation and propagation of cracks, and broken blocks occurred respectively. And we carried out the disc cutter spacing optimization study when the multi-indenters function in rock; which would provide useful information for the design of Full Face Rock Tunnel Boring Machine and the arrangement of the indenters.
引用
收藏
页码：1275 / 1280
页数：6
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