论文部分内容阅读
边坡稳定性的影响因素很多,露天转地下开采中边坡的失稳破坏通常是在坡跟出现较大的塑性区而发生破坏。介绍了高边坡支护中的一种新型支护方式-锚拉坡跟墙支护。坡跟墙设计主要针对边坡提前进入塑性区的部位,通过锚杆将坡跟墙与底部人工境界矿柱连接起来共同提高坡跟墙的抗倾覆力。通过数值模拟对比分析,锚拉坡跟墙支护一定程度上增加了坡脚的稳定性,提高了边坡的稳定安全系数。
There are many factors that influence the slope stability. The instability of the slope in the underground mining is usually caused by the plastic zone in the slope. A new type of supporting method in high slope support is introduced. The design of the wedge heel wall mainly aims at the location where the slope enters the plastic zone in advance, and the slope-heel wall and the bottom artificial pillar are connected by the anchor rod to jointly improve the anti-overturning of the wedge wall. Through the numerical simulation comparative analysis, the stability of the slope foot is improved to a certain extent by the anchor slope and the wall support, and the stability safety factor of the slope is increased.