陡倾外层状岩石边坡的破坏机制与开挖模拟

陡倾外层状岩石边坡的破坏机制与开挖模拟 English Version

1.School of Civil Engineering Architecture Beijing Jiaotong University Beijing 100044 China 2.College of Civil Engineering and Architecture Beijing Polytechnic University Beijing 100022 China 3.Institute of Engineering Geology Chengdu University of Technology Chengdu 610059 China

摘要: 陡倾外层状岩石边坡由于滑移-弯曲变形所形成的滑坡是石灰岩山区高速公路挖方边坡失稳的一种复杂的地质模式。通过实例,深入地分析了这类边坡产生变形破坏的地质力学机制与过程,用离散单元法对开挖过程和最终稳定性进行了数值模拟和分析,并提出了具有代表性的工程整治措施。
- 山区高速公路 /
- 挖方边坡 /
- 滑移-弯曲 /
- 离散单元法
Abstract: The failure of steep overdip stratified slope is generally caused by slidingbending in unstable cutting slopes of highway in limestone mountainous area. Based on the case study, the geomechanical mechanism and process of the deformation and failure for this kind of slope are illustrated,and discrete element method is used in modeling the excavation effect and final stability of the slope. According to the failure mechanism, a typical reinforcement remedial design of the slope is proposed.
- highway in mountainous area /
- cutting slope /
- sliding and bending /
- discrete element method