Panel extraction and safety analysis of hanging wall orebody under high-steep slope

被引：0
|
作者：
Xu S. [1 ]
An L. [1 ]
Liu D. [1 ]
Li Y. [1 ]
Lu D. [1 ,2 ]
机构：
[1] Key Laboratory of Ministry of Education on Safe Mining of Deep Metal Mines, Northeastern University, Shenyang, 110819, Liaoning
[2] Shandong Gold Guilaizhuang Gold Mine Co Ltd, Linyi, 276000, Shandong
来源：
An, Long (anLong@mial.neu.edu.cn) | 2018年 / China University of Mining and Technology卷 / 35期
关键词：
Hanging wall orebody; High-steep slop; Safety analysis; Stability; Under transport road;
D O I：
10.13545/j.cnki.jmse.2018.03.019
中图分类号：
学科分类号：
摘要：
To enhance the recovery of hanging wall orebody and to avoid the instability of slopes during extraction, the example of the hanging wall orebody recovery project in the east slope transportation road of Guilaizhuang gold mine in Shandong Province is analyzed. In light of problems such as: high-steep slope; consistent transportation road service and slope stability maintenance, it is designed to reinforce the slope firstly and then the panel extraction of hanging wall orebody with cut and fill method is applied. When recovering the resources of the hanging wall orebody, the partition operation of hanging wall orebody under the transportation road with the high intensive artificial filling object can also be obtained. By the finite element statistical analysis, the slope and transportation path stability are studied from both the dynamics and statics aspects. The dynamic calculation shows that the maximum vibration velocity and displacement deformation of the transportation road and the slope after blasting can meet the safety requirements and the blasting operation could not affect the safety of the slope and the trans portation road. The statics calculation from excavation and unloading shows that the displacement deformation and the tensile stress of the slope in the process of mining resource recovery are very small, which does not lead to the instability of the road and the slope. Therefore, the partition access with cut and fill method can be used to realize the safe and efficient recovery of hanging wall resources. The research of this paper can provide references for recovering mineral hanging wall resources under the similar conditions. © 2018, Editorial Board of Journal of Mining and Safety Engineering. All right reserved.
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页码：582 / 588
页数：6
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