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ya shui shi yan de yi xiang ge xin shui ya zu sai qi
Author(s): 
Pages: 44
Year: Issue:  10
Journal: Hydrogeology and Engineering Geology

Keyword:  阻塞器压水试验水压橡皮球勘探队支撑作用双管方法管子配置;
Abstract: <正> 在改进压水试验的阻塞方法中,我院各勘探队巳普遍采用“单管”代替“双管”,以便利上下管子和阻塞操作步骤。但是,用这个方法时在阻塞器下面的试验段中,必须配置长度等于试段长的钻桿起“支撑作用”,当孔口加压时,橡皮球才能压扁而阻
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