摘要
结合弓长岭井下铁矿无底柱分段崩落法沿脉进路大断面出矿方案 ,应用计算机力学数值模拟分析软件 RFPA2 D,对几种不同位置和断面出矿巷道的稳定性进行模拟与分析 ,其结果既能改善矿石回收指标 ,又能保证安全的巷道断面及位置 ,并在矿山生产实际中得到验证。
On the basis of the method used in Gong Chang Ling Underground Ore for large section drawing project of arranging mining entrance along ore vein with sublevel caving method and the application of the software RFPA 2D of computer and mechanics numerical simulation tests, this paper simulates and analyzes the stability of entrance along ore vein of different places and sections in order to determine the place and section of entrance along ore vein which can improve target of ore withdrawal and guarantee safety.
出处
《矿业快报》
2004年第3期17-19,共3页
Express Information of Mining Industry
关键词
无底柱分段崩落
大断面巷道
围岩稳定性
数值模拟
铁矿
Large cross section entrance
Stability of surrounding rock
Numerical simulation method of RFPA 2D
