|
| Investigation on Roof Caving Characteristic of Goaf in Huangshan Copper Nickel Mine |
|
Received:March 19, 2020
Revised:March 25, 2020
Accepted:April 01, 2020
Published Online:January 29, 2021
|
| View Full Text View/Add Comment Download reader |
| DOI： |
| KeyWord:goaf; roof fall; microseismic monitoring |
| Author | Institution |
| HE Deqiang |
Xinjiang Yakesi Resource Development Co., Ltd |
| shifeng |
BGRIMM Technology Group |
| WANG Ping |
BGRIMM Technology Group |
| CAI Yongshun |
BGRIMM Technology Group |
| YUAN Bensheng |
BGRIMM Technology Group |
| LIU Qiang |
BGRIMM Technology Group |
|
| Hits: 1921 |
| Download times: 818 |
| Abstract: |
| In the mining process of 30 # orebody in Huangshan copper nickel mine, there was a hidden danger that the overlying roof of the goaf was connected with the 32 # orebody goaf and collapsed to the surface. In order to grasp the Characteristic of roof caving in the goaf during the mining of 30 # orebody, the network layout optimization and wave velocity correction were carried out to form an online monitoring system that meted the actual needs of the mine based on the microseismic monitoring system. The temporal and spatial evolutions of microseismic events were analyzed and the abnormal changes of microseismic events were observed, the spatial distribution range of microseismic events was delineated, the roof caving characteristic was obtained. The microseismic events had a trend of continuous development to the 32 # collapse area, and the on-site appearance was consistent with the observation results, provided the basis for the follow-up hidden danger treatment. |
| Close |
|
|
|