NUMERICAL ANALYSIS OF STABILITY OF ROCK MASS IN SH|RENGOU IRON MINE, TANGSHAN CITY, FROM OPEN-PIT TO UNDERGROUND MINING
This paper examines the stability of the rock mass during the transition from open pit to underground mining of the Shirengou Iron Mine. This was analysed asing 2D Realistic Failure Process Analysis system (RFPA2D). In order to get a reasonable thickness of the barrier pillars, the process of failure for rock mass was modeled, and the deformation and stress changes induced by open excavation were predicted. Eventually, optional mining schemes and measures to control the spalling and caving of rock masses were proposed. These results enable the operators to make the most efficient use of resources both for ground support and excavations, as well as to address safety issues, which are of top priority.
TIAN-HUI MA CHUN-AN TANG LIAN-CHONG LI YONG-BIN ZHANG
Center for Rock Instability and Seismicity Research, Dalian University of Technology Dalian, 116024, P.R.China
国际会议
The 7th International Symposium on Rockburst and Seismicity in Mines(2009年第七届国际岩爆与微振动性学术研讨会)
大连
英文
1247-1250
2009-08-21（万方平台首次上网日期，不代表论文的发表时间）