真空联合堆载预压下软土路基的位移和孔压监测分析

魏家鸣 王清 王剑平 杨杰 单博

魏家鸣, 王清, 王剑平, 杨杰, 单博. 2012: 真空联合堆载预压下软土路基的位移和孔压监测分析. 工程地质学报, 20(1): 116-122.
引用本文: 魏家鸣, 王清, 王剑平, 杨杰, 单博. 2012: 真空联合堆载预压下软土路基的位移和孔压监测分析. 工程地质学报, 20(1): 116-122.
WEI Jiaming, WANG Qing, WANG Jianping, YANG Jie, SHAN Bo. 2012: ANALYSIS ON DISPLACEMENT AND POREWATER PRESSURE OF SOFT SOIL FOUNDATION UNDERVACUUM-SURCHARGE PRELOADING. JOURNAL OF ENGINEERING GEOLOGY, 20(1): 116-122.
Citation: WEI Jiaming, WANG Qing, WANG Jianping, YANG Jie, SHAN Bo. 2012: ANALYSIS ON DISPLACEMENT AND POREWATER PRESSURE OF SOFT SOIL FOUNDATION UNDERVACUUM-SURCHARGE PRELOADING. JOURNAL OF ENGINEERING GEOLOGY, 20(1): 116-122.

真空联合堆载预压下软土路基的位移和孔压监测分析

基金项目: 

国家自然科学基金项目(49972089 40372122, 40911120044, 40902077, 40372122, 2011J014)资助

详细信息
    作者简介:

    魏家鸣,主要从事工程地质方面的研究.Email: wjmlsfy@163.com

  • 中图分类号: U416

ANALYSIS ON DISPLACEMENT AND POREWATER PRESSURE OF SOFT SOIL FOUNDATION UNDERVACUUM-SURCHARGE PRELOADING

  • 摘要: 根据某一级公路软土路基的各类监测数据结果,详细地分析了地表沉降、孔隙水压力、土体水平位移等随时间和空间的变化规律,结果表明:淤泥层的沉降量占路基总沉降量的65%,低液限黏土层(15m以下)的水平位移较小,这与其土体强度较大有关; 由于过快的填筑速率可能促使总的超静孔隙水压力大于0,所以在堆载过程中需要对孔压数据进行密切观测,以防止路基失稳; 加固区30m以外基本无地表水平位移,软基处理过程不会对江堤安全性产生影响; 结合孔压和土体分层沉降可知,真空联合堆载预压的有效影响深度可以达到排水板以下2m的范围。
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出版历程
  • 收稿日期:  2011-07-01
  • 修回日期:  2011-11-24
  • 刊出日期:  2012-02-25

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