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Model tests on compacting effect of jacked group piles near slope top
Author(s): ZHAN Le, LI Jing-pei, RAO Ping-ping
Pages: 150-
153
Year: 2010
Issue:
S2
Journal: Chinese Journal of Geotechnical Engineering
Keyword: 模型试验; 群桩; 边坡; 均质砂土; 挤土效应;
Abstract: 本模型试验在边坡坡顶邻近处,连续贯入4根模型桩,边坡介质为均质砂土。研究边坡坡顶邻近处群桩的压入对边坡土体位移的影响规律。压桩仪器采用改装的手摇式静力触探仪,整个压桩和边坡变形过程由数码相机拍摄记录,通过后期用图像处理软件处理实验有效照片,可得每一根桩的压入所对应的整个边坡土体位移状态变化情况,其状态变化情况由边坡土体中每一点的径向和纵向位移体现。根据实验数据,比较群桩压入过程中每一根桩对均质砂土边坡位移场的影响大小和影响范围,得出群桩压入过程对边坡土体位移的影响规律。
Citations
System Exception