类土质岸坡渗流稳定性的修正传递系数法——以三峡库区凉水井滑坡为例

发布时间：2018-03-22 15:51

本文选题：渗流驱动力　切入点：修正传递系数法　出处：《重庆师范大学学报(自然科学版)》2017年05期 　论文类型：期刊论文

【摘要】：【目的】提出考虑渗流驱动力作用下的岸坡稳定的修正传递系数法。【方法】分析《重庆市地质灾害防治工程设计规范》(DB50 5029-2004)(后简称《规范》)中三峡库区岸坡渗流驱动力计算方法的不足,建立类土质岸坡渗流驱动物理模型,提出岸坡渗流驱动力精细化计算方法,考虑渗流驱动力修正了类土质岸坡稳定性计算的传递系数法。【结果】三峡库区凉水井滑坡实例分析表明,《规范》中的方法和本文方法得到的稳定系数分别为1.061和1.074,《规范》中的方法关于渗流驱动力计算过于保守。【结论】考虑渗流驱动力精细化计算方法对于大型、特大型岸坡稳定性计算具有实际工程意义。
[Abstract]:[objective] to put forward a modified transfer coefficient method for slope stability considering seepage driving force. [methods] to analyze the seepage displacement of bank slope in the three Gorges Reservoir area under the "Design Code for Geological disaster Prevention and Control Engineering in Chongqing" (DB50 5029-2004). The shortage of dynamic calculation method, The physical model of the seepage driving force of the soil-like bank slope is established, and the fine calculation method of the seepage driving force of the bank slope is put forward. Considering the seepage driving force, the transfer coefficient method for calculating the stability of soil-like bank slope is modified. [results] the analysis of the landslide in Liangshui well in the three Gorges Reservoir area shows that the stability coefficient obtained by the method and the present method are 1.061 and 1.061, respectively. The calculation of seepage driving force is too conservative in the method in 1.074. [conclusion] considering the fine calculation method of seepage driving force for large scale, The calculation of slope stability is of practical engineering significance.
【作者单位】：重庆交通大学岩土工程研究所;中国地质调查局地质灾害防治技术中心;中国地质科学院探矿工艺研究所;
【基金】：重庆市自然科学基金重点项目(No.csct2013JJB30001) 国土资源部公益性行业科研项目(No.201511051) 中国地质调查项目(No.DD20160278)
【分类号】：P642.22;TV223

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