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运用孔隙裂隙弹性体理论,结合损伤力学、断裂力学和矿山压力理论,以动态变化的分析思想和实测资料,研究了注浆及采动对岩体孔隙-裂隙类型升降变化的影响;注浆加固使工作面底板岩体类型由导水的IV,III型转为不导水的II,I型;采动则使工作面底板岩体类型在局部地点由不导水的II,I型转换为导水的IV,III型,从而形成“垂直、小范围”的导水通道;构建了注浆加固工作面底板突水“孔隙-裂隙升降型”力学模型.
Based on the theories of damage mechanics, fracture mechanics and mine pressure, with the dynamic changing theory and measured data, the influence of grouting and mining on the variation of rock mass fissure-fractured type was studied. The grouting reinforcement So that the type of floor rock is changed from water-conducting type IV and III to non-water-conducting type II and I. Mining makes the rock mass type of working face floor be converted from non-water-conducting type II and I to And the water-conducting channels IV and III form a “vertical and small-scale” aqueduct. The mechanics model of “water hole-crevice lift” is established by grouting to reinforce the floor water inrush of the working face.