千米深井围岩松动圈范围的研究
Shandong Coal Science and Technology（2011）
Abstract
为了更加合理的设计唐口矿井千米埋深巷道支护,有效控制巷道变形,采用YTJ20型岩层钻孔探测仪对千米埋深的围岩松动圈进行了直观测量,得出了超千米埋深条件下的松动圈范围,是浅埋深条件下松动圈范围的数倍。
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Key words
Loose circle,Well,Research
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