无砂砼小桩处理软土和黄土高填方路基的对比分析  

Comparison on thick-fill highway foundation over weak soil and collapsible loess processed by Non-Sand-Mini-Pile(NSMP)

作　　者：郭院成[1] 刘海涛[1] 张浩华 

机构地区：[1]郑州大学土木工程学院,河南郑州450002 [2]郑州市市政工程管理处,河南郑州450002

出　　处：《河南科学》2003年第5期524-527,共4页Henan Science

基　　金：河南省科技攻关资助项目(0224620011)

摘　　要：根据高填方路基的工程特点及无砂砼小桩复合地基技术特点,研究分析了软土高填方路基处理过程中,下部软弱土层中孔隙水压力和有效应力的变化规律,以及黄土地区高填方路基处理过程中的内力和变形特点,采用应力路径法对比研究了软土路基和黄土路基采用无砂砼小桩处理时的优化设计问题,可供同类工程参考。Based on the analysis of features of thickfill highway foundation and the characteristics of NonSandMiniPile(NSMP) composite foundation, the evolution procedure of pore water pressure and effective stress in bed weak soil in the course of foundation processing are studied in detail. Meanwhile, the same items in collapsible loess foundation are determined. The stress path method is applied in the comparison study on weak soil and collapsible loess foundation. In addition, the optimization design solution is suggested. The conclusion may be used as the reference for the similar projects.

关 键 词：软土 黄土 高填方路基 有效应力 应力路径 优化设计 

分 类 号：TU472[建筑科学—结构工程]