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Practices on dynamic prevention and control of pressure bump in high stress zone of Sanhejian Mine

ZHAO Yu-sheng (Sanhejian Mine,Xuzhou Coal Mining Administration Group Corporation Ltd.,Xuzhou 221613,China)  
The paper introduced the dynamic prevention and control method for pressure bump in Sanhejian Mine.The technical practices on the pressure bump prevention and control method were successfully made in No.9202 coal mining face with a potential of pressure bump in high stress zone.
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