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投稿时间:2018-12-03 修订日期:2018-12-11
投稿时间:2018-12-03 修订日期:2018-12-11
中文摘要: 为了得到铜山口铜矿露天采场南部与西部边坡的稳定性,采用RocPlane2.0分析软件对边坡台阶进行了平面破坏稳定性研究。研究结果表明:(1)受力在I~Ⅵ条件下,边坡的安全系数依次降低;在张裂隙、爆破振动力、地震力各影响因素的控制对比下,地震力对边坡稳定性的影响较大。(2)南部边坡与西部边坡台阶高度为12m下,坡面角≤75°时,6种受力情况边坡的安全系数均大于许用安全系数,边坡台阶不会发生平面破坏;台阶高度为24m下,坡面角≤75°时,6种受力情况边坡的安全系数均大于许用安全系数,边坡台阶不会发生平面破坏。(3)建议在台阶并段开采(24m)时,其台阶的坡面角为75°。研究结果可为矿山安全生产设计提高参考。
Abstract:In order to obtain the stability of the South and west slope of Tongshankou copper mine open pit, the plane failure stability of the slope step was studied by using RocPlane 2.0 analysis software. The results show that: (1) under the condition of I~VI, the safety factor of slope decreases in turn; under the control of tension fissure, blasting vibration force and seismic force, the influence of seismic force on slope stability is greater. (2) When the height of the step of the southern slope and the western slope is 12 m and the slope angle is less than 75 degrees, the safety factor of the slope under six loading conditions is greater than the allowable safety factor, and the slope step will not be damaged in plane. When the height of the step is 24 m and the slope angle is less than 75 degrees, the safety factor of the slope under six kinds of stress conditions is greater than the allowable safety factor, and the slope step will not occur plane damage. (3) It is suggested that the slope angle of the step is 75 degrees when the bench section is mined (24m). The results can be used for reference in mine safety production design.
文章编号:20181203002 中图分类号: 文献标志码:
基金项目:
作者 | 单位 | 邮编 |
王飞飞* | 长沙矿山研究院有限责任公司 | 410012 |
邹平 | 长沙矿山研究院有限责任公司 | 410012 |
孟中华 | 长沙矿山研究院有限责任公司 | 410012 |
李爱兵 | 长沙矿山研究院有限责任公司 | 410012 |
刘正宇 | 长沙矿山研究院有限责任公司 | 410012 |
虎万杰 | 长沙矿山研究院有限责任公司 | 410012 |
马增 | 长沙矿山研究院有限责任公司 | 410012 |
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