Caving Mining of Steeply Inclined Narrow Veins and Supporting Mechanism of Caved Rock

被引：1
作者：
An L. [1 ]
Wang R.-D. [2 ]
Hou P.-Y. [1 ]
Liang R.-Y. [1 ]
机构：
[1] Key Laboratory of Ministry of Education for Safe Mining of Deep Metal Mines, Northeastern University, Shenyang
[2] WeiHai Gemho Digital Mining Technology Co., Ltd., Weihai
来源：
Dongbei Daxue Xuebao/Journal of Northeastern University | 2019年 / 40卷 / 02期
关键词：
Caving mining method; Numerical simulation; Stability of surrounding rock; Steeply inclined narrow vein; Sublevel height;
D O I：
10.12068/j.issn.1005-3026.2019.02.024
中图分类号：
学科分类号：
摘要：
Based on the gold mine in Jinchanggouliang, taking advantage of the supporting role of caved rock, a caving mining method was proposed for steeply inclined narrow veins. Using numerical simulation method, the support mechanism action of caved rock for surrounding rock was studied and the influence of sublevel height on the supporting effect of caved rock was analyzed. The calculation results are as follows: the stability of surrounding rock increases significantly by the caving mining method compared with the open stope method and the volume of plastic zone decreases by 58.4%.With the increase of the sublevel height, the support effect of caved rock decreases slightly. The research result provides a new way for mining the broken orebody with steeply inclined narrow veins based on caving mining method. The feasibility and rationality of the caving mining method are also verified. © 2019, Editorial Department of Journal of Northeastern University. All right reserved.
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页码：278 / 283
页数：5
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