论文部分内容阅读
重庆市涪陵区厚层软硬相间公路高边坡的详细调查发现,不同的岩层产状,不同开挖方向其斜坡变形破坏模式不同。本文根据野外实例总结了不同岩层产状与开挖方向对应的破坏模式,平缓层状斜坡破坏方式有滑塌式崩塌、倾倒式崩塌和坠落式崩塌;中倾角层状斜坡破坏方式有顺层滑移和崩塌;高陡倾角层状斜坡坡破坏方式有滑移式崩塌和坠落式崩塌。表明斜坡变形破坏地质力学模式与斜坡岩体结构之间存在着密切的成生联系。通过对不同倾角的斜坡岩体破坏方式研究,可以达到系统评价预测斜坡稳定性的目的;通过公路开挖对不同产状岩层可能造成灾害的预期,可以采用不同的预防措施,避免大型灾害的发生。
A detailed survey of the high slope of the thick soft-hard highway in Fuling District of Chongqing found that different rock production patterns and different slope deforming modes are different in different excavation directions. Based on the field examples, this paper summarizes the failure modes corresponding to the occurrence and the excavation direction of different rock strata. The failure modes of smooth stratified slope include collapse collapse, collapse collapse and fall collapse. Migration and collapse; sloping collapse and falling collapse occurred in layered steep slopes with high steep dip. It shows that there is a close relationship between geomechanics model of slope deformation and failure and rock mass slope structure. Through the study on the failure mode of slope rock mass with different dip angles, the purpose of systematically evaluating and predicting the slope stability can be achieved. Different measures can be taken to prevent the occurrence of large-scale disasters by highway excavation, .