水泥土桩加固不同干密度液化土孔隙水压力分析  

ANALYSIS ON PORE WATER PRESSURE OF DIFFERENT DRY DENSITIESLIQUEFIED SOILREINFORCED BY SOIL-CEMENT PILE

作　　者：牛琪瑛[1] 李如凯[1] 徐增杰[1,2] 申俊敏[3] 

机构地区：[1]太原理工大学建筑与土木工程学院,山西太原030024 [2]山东省水利勘察设计院,山东济南250013 [3]山西省交通科学研究院,山西太原030006

出　　处：《工程力学》2012年第A01期141-144,161,共5页Engineering Mechanics

基　　金：国家自然科学基金项目(50578104);山西省自然科学基金项目(2006011046);山西省交通厅科技项目(10-1-06)

摘　　要：该文通过室内模拟地震荷载,对水泥土桩加固不同干密度液化土进行振动台试验,得出不同干密度条件的未加固或加固地基土在相同埋深处的孔隙水压力变化规律,探讨水泥土桩在不同干密度条件下抗液化效果,揭示出水泥土桩加固液化土复合地基的排水效果不明显,抗液化性能不佳,提示在工程应用中要慎重选择。With simulation seismic loads in a laboratory, the vibration table experiment of the liquefied soil improved by soil-cement piles are carried on. a variety of pore water pressure of non-improved and improved soil under the same buried depths and different dry density is utilized to discuss liquefaction effects of soil-cement pile at different dry density. It is revealed that the drainage effects of soil-cement piles is not evident and the liquefaction effects of is not considerable. It should be carefully chosen in engineering applications.

关 键 词：水泥土桩 振动台 干密度 孔隙水压力 抗液化效果 

分 类 号：TU473.1[建筑科学—结构工程]