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yong keng ce fa ce ding ji yan gei shui du
Author(s): 
Pages: 201-202
Year: Issue:  4
Journal: Underground Water

Keyword:  给水度风化裂隙基岩裂隙水测定试坑发育影响测试方法计算方法钻探技术钻探取芯;
Abstract: <正> 目前对于砂层给水度的测试计算方法较多,但基岩裂隙水给水度的测试方法较少,且弊病很多。例如文献中介绍的以统计岩芯的裂隙代替给水度的方法,钻探取芯率法,取出的岩芯多少,岩芯裂隙是否保持原状等,除受裂隙发育影响外,还与钻探技术和设备有根大关系,不能反映客观实际。再如
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