[公路铁路地基]discussion about sand drain and stone column [复制链接]

Hi,everyone, one of my friends are doing some work on treatment of highway base. He is confusing about the application of sand drain and stone column. mw 28E\U  
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for those who knew these technology very well, please discuss the advantage and disadvantage of two methods. it will be better to talk about the calculation implication. 5tlRrf  
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thanks a lot for your participation. dQj/Sr  

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