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CALCULATION METHOD OF GENERATION AND DISSIPATION OF EXCESS PORE WATER PRESSURE IN STONE COLUMNS FOUNDATION
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摘要: 针对碎石桩复合地基的单面透水边界条件,将作为力源项的动孔压增长率表达成为时间与深度的函数,给出地震荷载作用下碎石桩复合地基中超孔隙水压力产生和消散的解析解;结合几种实用的动孔压计算模式,并给出不同动孔压计算模式下解析解的具体表达式以及地震结束后残余孔压场消散的解析解表达式。Abstract: Basedon single permeable boundary condition of stone columns composite foundation, the dynamic pore pressureincreasing ratio as force source is expressed as the function of depth and time, the general analytic solution of generation anddissipation of excess pore water pressure in stone columns composite foundation is developed under seismic loading. Basedon some existing dynamic pore pressure calculation models, the specific analytic solution is developed and analytic solutionof dissipation of residual pore water pressure is developed.
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