The paper has introduced shallow department stratum enclose but not emit water and deep department stratum not enclosing but emits water.

• 冻结工程中水文孔作为井筒的眼睛,是判断井筒交圈与否的重要手段。 本文介绍了泉店煤矿副井井筒在冻结过程中,浅部地层交圈但未冒水,而深部地层未交圈但水文孔水位冒出管口特殊情况下。