三峡库区某煤矿码头岸坡渗流场分析与稳定性评价  

Seepage Field and Stability Analysis for a Bank Slope of Coal Mine Wharf in the Three Gorges Reservoir Area

作　　者：袁海龙 汤罗圣[2] 

机构地区：[1]中交第二航务工程勘察设计院有限公司,武汉430071 [2]中国地质大学工程学院,武汉430074

出　　处：《安全与环境工程》2012年第6期51-54,共4页Safety and Environmental Engineering

基　　金：国家自然科学基金青年基金项目(41101515/D011002)

摘　　要：由于三峡工程的建设,在库区进行码头建设必须考虑库水位调度对岸坡稳定性的影响。本文以重庆奉节县某煤矿码头的实际工程为例,基于饱和-非饱和渗流理论,采用有限元数值模拟方法,分别模拟计算与分析了静态库水位、库水位上升和库水位下降几种工况下岸坡的渗流场,并在此基础上采用剩余推力法计算得到岸坡不同工况下最危险滑动面的位置和相应的稳定性系数,据此对岸坡稳定性进行了评价,以为库区码头设计及施工提供依据。Water level fluctuation is an important factor of bank slope stability and should be taken into consideration in the construction of wharf in a reservoir area, such as the Three Gorges reservoir area in China. In this paper,a coal mine wharf project in Fengjie,Chongqing is taken as an example. Based on the saturation and unsaturation seepage theory,the seepage field of bank slope under different water levels is analyzed using finite element numerical simulation, including 145 m, 175 m and the fluctuations between the two levels, and then the bank slope stability is calculated by residual thrust method. The slide surface with the lowest stability is found from different water levels, and the stability variation is also obtained. The stability is finally assessed and feasible controlling suggestion is provided in the paper as the reference for wharf construction in reservoir area.

关 键 词：码头 岸坡 渗流场 稳定性评价 三峡库区 

分 类 号：X45[环境科学与工程—灾害防治] P642.22[天文地球—工程地质学]