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Research on quick judgment method of classification of expansive soil in field
Author(s): WANG Qingwei1, ZENG Bin1, LIU Qingbing1, HUANG Dingqiang2, DONG Zhongping2
Pages: 31-
35
Year: 2013
Issue:
5
Journal: Yangtze River
Keyword: 膨胀土; 膨胀潜势; 野外快速判别; 引江济汉工程;
Abstract: 为探索膨胀土的野外快速判别方法,以南水北调中线引江济汉工程膨胀土渠坡段为例,选取土体颜色、地层岩性、粘着程度、结核物含量4个野外速判因子,并根据部分已确定的膨胀土分级结果,反分析了各因子的分级敏感度与权重,建立了膨胀土野外快速判定多因子权重专家打分系统。经验证,该专家打分系统可实现膨胀土膨胀潜势的野外快速判别,具有较好的适用性,可为膨胀土地区工程勘察及治理方案的设计提供有益的指导。
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