| Based on the analysis by synthesis of rock mechanics and geomechanics, the mechanisum of dynamic disaster on Xuandong Coal mine was studied. The three key points, power producer, function medium and the induced factors were offered. The crustal stress was measured by stress relieving method. The geomechanics laws of gas to Xuandong Coal mine was analysed through the theory of slab structure and areal geology evolution. The control and prevention measures to dynamic disaster were formulated, and the three-dimensional gas drawing system was builded. The study will clear and definite the mechanics of dynamic disaster in further, which also had significance on the improving to the forecast and prevention level of dynamic disaster. |
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