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| Study on the stability of large diameter deep hole stope backfill mining method |
| Received:March 04, 2020 Revised:March 12, 2020 |
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| DOI： |
| KeyWord:Large diameter deep hole; Stability of stope; Surface displacement |
| Author | Institution |
| XU Weilan |
北京国信安科技术有限公司 |
| SUN Fei |
黑龙江多宝山铜业股份有限公司 |
| HE Weijian |
黑龙江多宝山铜业股份有限公司 |
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| Abstract: |
| According to the characteristics of the stope stope with large diameter and deep hole numerical simulation of stope mining and the overall backfill effect was carried out in this paper. Through analyzing the structural parameters of stope, stress distribution, vertical displacement and stability of plastic zone, the safety in mining period was verified. Meanwhile, through analysis of the stability of backfill after mining and the surface displacement , the protection limit of the surface structure is carried out. To sum up, this paper holds that it is necessary to study the mining stability of large diameter deep hole stope backfill mining method, which aggrandizes mine’s economic, environmental and social benefits in the construction and operation period.. |
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