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中国公路学报
CHINA JOURNAL OF HIGHWAY AND TRANSPORT
2007 Vol.20 No.1 P.7-13

数字化期刊

素混凝土桩和搅拌桩处理城市道路路基的原位试验

朱世哲  陈秀亮  徐日庆 

摘 要:在较差地质条件、不同填筑材料情况下,用素混凝土桩和搅拌桩进行了城市道路路基处理的原位试验,分析了超孔隙水压力、桩间土分层沉降、附加有效应力、路基深层土的侧向位移等数据.结果表明:在正常荷载作用下,素混凝土桩复合地基浅层应力向桩体集中,并通过桩向深层扩散,桩顶和桩底的刺入较为明显,有单桩效应;而对于搅拌桩,大部分桩间土和桩没有相对位移,形成了一个加固整体,应力在桩顶和桩底较集中,大部分荷载传到了桩底桩间土和下卧层中.
关键词:道路工程;城市道路路基;试验研究;素混凝土桩;搅拌桩;单桩效应;加固整体
分类号:U416.1 文献标识码:A

文章编号:1001-7372(2007)01-0007-07

In-situ Experiment on Urban Road Subgrade Improved by Plain Concrete Pile and Mixed-in-place Pile

ZHU Shi-zhe  CHEN Xiu-liang  XU Ri-qing 

基金项目:国家自然科学基金项目(50678158)
作者简介:朱世哲(1978-),男,湖北郧西人,工学博士研究生,E-mail:zhushizhe@163.com.
作者单位:朱世哲(浙江大学,土木工程学系,浙江,杭州,310027) 
     陈秀亮(杭州经纬建筑工程有限公司,浙江,杭州,310027) 
     徐日庆(浙江大学,土木工程学系,浙江,杭州,310027) 

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收稿日期:2006年6月2日

出版日期:2007年1月31日

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