【摘要】 在对比水电规范和建筑规范中地震液化判断方法异同的基础上,分析坝基液化条件土石坝拟静力法计算抗滑稳定的边界条件;进一步对地基中存在可液化土的土石坝的二维拟静力法参数选取时,如何考虑超静孔隙水压力影响,提出了基于三维动力计算成果的3种分析计算方法,文章推荐了其中2种简化算法,可直接应用已成软件进行计算,具有简单有效、实用性强的特点,并在工程实例中进行了验证。更多还原

【Abstract】 Based on comparison of the determination methods for earthquake liquefaction in hydropower specification and in architectural specification,the boundary conditions for calculation of stability against sliding by 2D pseudo-static method of the earth-rockfill dam under condition of the dam foundation liquefaction are analyzed. How to consider impacts from the excess pore water pressure,furthermore,three analysis and calculation methods based on 3D dynamic calculation results are proposed when the 2D pseudo-static method based shear parameter of earth-rockfill dam with possible liquefaction soil in its foundation is selected. Two of the three simplified calculation methods in the paper are recommended. The produced software can be directly applied for calculation. They feature simple,effective and strongly practical as well as are verified in engineering practice.更多还原