| 上硬下软岩质边坡破坏特征及加固措施 |
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| 引用本文： | 王卫中,丁心香.上硬下软岩质边坡破坏特征及加固措施[J].路基工程,2019,0(6):47. |
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| 作者姓名： | 王卫中 丁心香 |
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| 作者单位： | 河南省交通规划设计研究院股份有限公司,郑州450000;公路地质病害防治技术河南省工程实验室,郑州450000;河南省交通规划设计研究院股份有限公司,郑州,450000 |
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| 基金项目： | 河南省交通运输厅科技项目:基于北斗高精度定位的区域性路基灾害防治关键技术研究（2019J-2-14） |
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| 摘 要： | 为了探讨龙源电厂场区道路工程中，上硬下软结构边坡破坏特征和加固措施，运用数值模拟分析了边坡开挖对此类坡体结构坡体变形及坡体应力的影响，并结合工程实例分析此类边坡变形特征和加固措施。结果表明:①上硬下软的坡体结构以及上部硬岩结构面的发育是坡体变形失稳的主要内在因素。坡体开挖后临空面的形成是坡体变形失稳的必要条件；②为防止坡体结构为上硬下软的边坡破坏，必须加固软岩，防止软岩变形，稳固坡脚。
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| 关 键 词： | 道路工程 边坡 数值分析 破坏特征 加固措施 |
| 收稿时间： | 2019-01-08 |
Failure Properties of Top Hard-bottom Soft Rock Slope and the Reinforcement Measures |
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| Abstract: | In order to explore the failure properties of and the reinforcement measures for the top hard-bottom soft slope in the road engineering of Longyuan Power Plant, the effects of the excavation on the deformation and stress of such slope were analyzed by means of numerical simulation and, in relation to engineering examples, the slope deformation characteristics and the reinforcement measures were studied. The result shows that, ① as to top hard-bottom soft slope, the development of such structure and the upper structural plane in hard rock is the main intrinsic factor leading to deformation and instability of the slope, while the free face formed after the excavation is the necessary condition; ② for the purpose of preventing the slope failure, the soft rock must be reinforced to avoid deformation and stabilize the slope toe. |
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