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nan shui bei diao zhong xian he nan duan huang tu zhuang tu di zhi te xing yan jiu
Author(s): 
Pages: 104-105
Year: Issue:  9
Journal: YELLOW RIVER

Keyword:  黄土状土湿陷变形渗透溶滤变形南水北调中线工程;
Abstract: 南水北调中线工程河南段黄土状土分布长度约330 km,沿线黄土状土中易溶盐、有机质含量较低,碳酸盐含量分布不均.对80组试验数据进行统计表明:研究区黄土状土存在渗透溶滤变形,计算湿陷变形时,对溶滤变形系数大于0.4%的黄土状土,可认为具有溶滤变形特征,应计入渗透溶滤变形量;而时溶滤变形系数小于0.4%的黄土状土,可不计入溶滤湿陷变形量.
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