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ji yan hui zhuan zuan tan zhong yan ceng fu shui xing de pan duan
Pages: 23-24
Year: Issue:  6
Journal: Geotechnical Investigation & Surveying

Keyword:  富水性岩层钻进钻探水位变化岩心采取率判断基岩地下水位进尺;
Abstract: <正> 根据基岩回转钻探中的一些现象,可用来判断岩层的富水性,其方法如下: 一、钻进感觉可根据掉钻、别钻、跳钻、进尺快慢等钻进感觉,并结合水位变化、返水情况用来判断岩层的富水性(表1)。
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