| 水驱型层状岩质边坡破坏机理的讨论 |
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| 引用本文： | 符贵军,袁继国,任伟中,陈浩. 水驱型层状岩质边坡破坏机理的讨论[J]. 科学技术与工程, 2017, 17(4) |
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| 作者姓名： | 符贵军 袁继国 任伟中 陈浩 |
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| 作者单位： | 中国科学院武汉岩土力学研究所,西安理工大学,中国科学院武汉岩土力学研究所,中国科学院武汉岩土力学研究所 |
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| 摘 要： | 水驱型层状岩质边坡的破坏是一个渐进的过程。以断裂力学为理论基础,推导了边坡后缘裂隙充水的临界深度公式;分析了滑坡发生初期内部微裂纹的贯通机制;对顺层赋水边坡的层间破坏给出了解释。研究结果表明,水对坡体的影响在相当长的时间里是以物理化学作用为主,层状岩体破坏的临界长度与坡角、孔隙率、层厚、水头和水力坡降有关,内水压力的骤然升高会加速边坡失稳,据此提出了新的治理思路。
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| 关 键 词： | 岩质边坡；充水深度；水力驱动；层间破坏 |
| 收稿时间： | 2016-07-09 |
| 修稿时间： | 2016-08-14 |
THE DISCUSSION OF THE FAILURE MECHANISM IN THE HYDRAULIC-DRIVEN LAYERED ROCK SLOPE |
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| Fu Guijun,Yuan Jiguo,Ren Weizhong and Chen Hao. THE DISCUSSION OF THE FAILURE MECHANISM IN THE HYDRAULIC-DRIVEN LAYERED ROCK SLOPE[J]. Science Technology and Engineering, 2017, 17(4) |
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| Authors: | Fu Guijun Yuan Jiguo Ren Weizhong Chen Hao |
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| Abstract: | Abstract: The failure of the hydraulic-driven layered rock slope is a gradual process. Based on the fracture mechanic, it deduce the formula of critical depth which water-filled in the slope; analyze the mechanism through micro-cracks in the initial stage of the landslide; explain the reason of fracture between layers. The results show that , in a long time, water influences the slope by physical and chemical effect. The critical length of layer is related to angle of slope, porosity, thick, hydro-static pressure and hydraulic gradient slope.A sudden increase pressure of water accelerates the slope failure. According to above, put forward the new idea of governance. |
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| Keywords: | rock slope water-filled depth hydraulic-driven fracture of layers |
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