...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International Journal of Rock Mechanics and Mining Sciences >New stability calculation method for rock slopes subject to flexural toppling failure
【24h】

New stability calculation method for rock slopes subject to flexural toppling failure

机译：岩石斜坡的新稳定性计算方法弯曲膨胀失效

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Flexural toppling is one of the main failure modes of natural and manmade anti-dip layered rock slopes. Based on cantilever slab tensile theory, the failure mechanism of flexural toppling was analyzed. A toppling slope is divided into three parts: the stability, tensile and shear zones. By considering this failure mechanism, a new stability analysis method for slopes against flexural toppling failure is proposed using equilibrium theory. In addition, a sensitivity analysis is performed to investigate the locations of possible failure surfaces and zones as well as changes in the stability of anti-dip rock slopes under different conditions. The results show that the positions of the inter-column forces have almost no effect on the stability factor but affect the areas of the tensile zone and the shear zone. The angle of the most dangerous potential failure surface increases with increasing dip angle and slope height, whereas the stability factor is negatively correlated with the dip angle and slope height but is positively correlated with the layer thickness. The failure mode is essentially flexural toppling when the layer thickness is small, but the failure mode gradually transitions to shear-sliding with increasing layer thickness. Finally, a real case study is analyzed using this method, and the calculated results are consistent with the actual conditions.
机译：弯曲倒装是天然和人造防浸分层岩石斜坡的主要故障模式之一。基于悬臂板拉伸理论，分析了弯曲膨胀的故障机理。倒装斜率分为三个部分：稳定性，拉伸和剪切区。通过考虑这种故障机制，提出了一种利用平衡理论提出针对弯曲膨胀失效的新稳定性分析方法。另外，进行灵敏度分析以研究可能的失效表面和区域的位置以及在不同条件下的防倾岩斜率的稳定性变化。结果表明，柱间力的位置几乎没有对稳定性因子的影响，而是影响拉伸区和剪切区的区域。最危险的电位失效表面的角度随着倾角和斜率高度的增加而增加，而稳定性因子与倾角和斜率高度负相关，但与层厚度呈正相关。当层厚度小时，故障模式基本上是弯曲的倾倒，但故障模式逐渐过渡到具有增加的层厚度的剪切滑动。最后，使用该方法分析实际情况研究，计算结果与实际条件一致。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号