复杂开采条件下低品位镍矿安全高效回采方案研究
Study on Safety and Efficient Mining Scheme for Low Grade Nickel Ore Under Complex Mining Conditions
h-分层厚度；L-拉底空间跨度；R-岩梁端部竖向集中应力；σh-岩梁端部水平集中应力；σv-岩梁所受的垂直应力；Q-岩梁所受剪切力；M-岩梁所受弯矩
复杂开采条件下低品位镍矿安全高效回采方案研究 |
| 谭宝会,王永定,张志贵,龙卫国,李斌,何建元,龚臻 |
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Study on Safety and Efficient Mining Scheme for Low Grade Nickel Ore Under Complex Mining Conditions |
| Baohui TAN,Yongding WANG,Zhigui ZHANG,Weiguo LONG,Bin LI,Jianyuan HE,Zhen GONG |
| 图4 胶结充填体分层横梁受力示意图 h-分层厚度；L-拉底空间跨度；R-岩梁端部竖向集中应力；σh-岩梁端部水平集中应力；σv-岩梁所受的垂直应力；Q-岩梁所受剪切力；M-岩梁所受弯矩 |
| Fig.4 Stress diagram of cemented backfill layered beam |
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