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| Composite supporting technology of trench bottom structure |
| Received:February 02, 2015 Revised:February 10, 2015 |
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| DOI： |
| KeyWord:soft rock; trench bottom structure; composite support of sparging and anchoring net; bolt supporting theory |
| Author | Institution |
| LI Qiang |
长沙矿山研究院有限责任公司 |
| 李明宇 |
哈密和鑫矿业图拉尔根铜镍矿 |
| 李向东 |
长沙矿山研究院有限责任公司 |
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| Abstract: |
| This paper experimented and studied the supporting method and effect of stope bottom structure under the condition of soft and broken rocks in Tulargen Copper-Nickel Mine. Based on the principle of modern supporting structure, it put forward the composite supporting technology scheme according to the ore-rock and practical conditions. Depend on the functions of roadway and its damage degree affected by the deep hole blasting, selected the targeted supporting method. Through composite supporting technology to maximize self-bearing capability of surrounding rock, which can keep the stability of the bottom structure under the action of supporting system and surrounding rocks. This kind of supporting technology can greatly increased the stability of roadway and reduced the supporting cost, which provided a strong guarantee for the mine’s safe and high efficient mining, and given some technical reference for the formation and supporting method of trench bottom structure in similar mines. |
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