| 复杂反倾岩质边坡的稳定性分析方法研究 |
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| 引用本文： | 王林峰,陈洪凯,唐红梅.复杂反倾岩质边坡的稳定性分析方法研究[J].岩土力学,2014,35(Z1):181-188. |
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| 作者姓名： | 王林峰 陈洪凯 唐红梅 |
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| 作者单位： | 重庆交通大学 岩土工程研究所，重庆 400074 |
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| 基金项目： | 国家自然科学基金资助(No.11272185;No.51108488)；2013年重庆高校创新团队建设计划资助(No. KJTD201305)；重庆交通大学地质资源与地质工程重点学科专项经费资助(No.2013D-1)。 |
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| 摘 要： | 以坡体内含有多组结构面的复杂反倾岩质边坡为研究对象,考虑结构面未将岩块与母岩彻底分离的情况,建立了复杂反倾岩质边坡的稳定性分析方法。首先,根据岩层的受荷状态和岩层间的接触关系,建立各岩层的挠度计算方法。然后,以岩层的挠度为关联变量建立方程组,通过求解方程组得到各岩层间的层间荷载,进而量化了边坡内各岩块后部结构面受到的荷载,并据此构建了各结构面的断裂力学模型。利用该模型并基于断裂力学建立了各岩块的稳定系数计算方法。最后,通过算例分析表明文中建立的复杂反倾岩质边坡稳定分析方法得到的结果与边坡实际破坏形态基本一致。
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| 关 键 词： | 复杂反倾岩坡 稳定性 多组结构面 断裂力学 |
| 收稿时间： | 2014-01-24 |
Stability analysis method for complex anti-inclined rock slopes |
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| WANG Lin-feng
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CHEN Hong-kai
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TANG Hong-mei.Stability analysis method for complex anti-inclined rock slopes[J].Rock and Soil Mechanics,2014,35(Z1):181-188. |
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| Authors: | WANG Lin-feng CHEN Hong-kai TANG Hong-mei |
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| Institution: | Institute of Geotechnical Engineering, Chongqing Jiaotong University, Chongqing 400074, China |
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| Abstract: | For the complex anti-inclined rock slope with many groups of fissures, considering the block and parent rock isn’t completely separated by fissures, a stability analysis method for it is proposed. At first, based on the rock layer’s bearing mode and contact relationship, a rock layer’s deflection calculation method is established. Then taking the rock layer’s deflection for relation variables, the calculation equations are built. Through solving the equations, the interlayer’s load can be obtained. So the loads on the rock block’s fissures are quantified; and accordingly a fracture mechanics model is established. Through fracture mechanics, rock block’s stability analysis method is established. At last, through a case study, it is shown that the results calculated by the proposed method agree well with the actual situations. |
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| Keywords: | complex anti-inclined rock slopes stability groups of fissures fracture mechanics |
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