碎石桩复合地基中超孔隙水压力长消的计算方法  

CALCULATION METHOD OF GENERATION AND DISSIPATION OF EXCESS PORE WATER PRESSURE IN STONE COLUMNS FOUNDATION

作　　者：张艳美[1] 张旭东[1] 张鸿儒[2] 

机构地区：[1]中国石油大学(华东)储运与建筑工程学院,东营257061 [2]北京交通大学,北京100044

出　　处：《工业建筑》2007年第3期56-59,94,共5页Industrial Construction

基　　金：国家自然科学基金资助项目(G50278003);中国石油大学校基金资助项目(Y061515)。

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。Based On single permeable boundary condition of stone columns composite foundation, the dynamic pore pressure increasing ratio as force source is expressed as the function of depth and time, the general analytic solution of generation and dissipation of excess pore water pressure in stone columns composite foundation is developed under seismic loading. Based on some existing dynamic pore pressure calculation models, the specific analytic solution is developed and analytic solution of dissipation of residual pore water pressure is developed.

关 键 词：碎石桩复合地基 解析解 超孔隙水压力 

分 类 号：TU473.12[建筑科学—结构工程]