探讨动水关阀的类型、功能、工艺流程和正常及应急工况下的实现方法，并对增强其控制可靠性提出建议。
The types, functions, technological flow of dynamic water shut-off valve and the implementation method under both normal and urgent conditions are investigated.
干燥与饱水岩样的动、静泊松比变化规律性较差。
The variation of their dynamic and static Poisson's ratios is not regular.
得出结论：在岩性和构造适宜地段，红层中可以赋存较为丰富的地下水，它们常通过采动裂隙引发突水事故，从而对煤矿的安全生产造成威胁。
Then reach a conclusion that the red bed can store plentiful ground water in some suitable areas with lithologic and structural conditions. As a important source of filling mine shaft, it oft...
得出结论：在岩性和构造适宜地段，红层中可以赋存较为丰富的地下水，它们常通过采动裂隙引发突水事故，从而对煤矿的安全生产造成威胁。
Then reach a conclusion that the red bed can store plentiful ground water in some suitable areas with lithologic and structural conditions. As a important source of filling mine shaft, it oft...
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