采场破碎煤体注浆加固渗流规律研究

为了解决日益增多的煤矿中煤壁片帮事故，用化学树脂浆进行注浆煤体加固．在采场煤体破碎机理研究基础上以支承压力峰值点为分界点将采场注浆区分为塑性区和弹性区两个渗透物理模型来对煤体注浆加固渗流规律进行研究．把塑性区破碎煤体作为各向同性介质来建立注浆物理模型，基于塑性区渗透物理模型、质量守恒和达西定律建立了塑性区注浆渗流数学模型，通过插值方法对模型进行了解算，得到了塑性区浆液渗流规律，并在现场进行了破碎煤壁注浆加固试验和注浆渗流规律解算，结果表明通过化学树脂浆进行塑性区煤体注浆加固是可行的．

Seepage Law of Grouting for Reinforcing Fractured Coal in Mining Face

The pressed grouting consolidation is widely used to deal with the increasing rib spalling disaster of coal face.Based on the fracture mechanism of coal seams,two seepage physical models,plastic zone model and elastic zone model were put forward according to the classification of coal faces by the peak point of abutment pressure.The grouting seepage law of fractured seam was studied.By regarding the fractured seam as a isotropic medium,the seepage physical plastic zone was also described.The resin seepage mathematics model of plastic zone was established based on the seepage physical model,mass conservation and Darcy law.The grouting law was obtained by resolving the mathematics model with the interpolation method.The fractured seam injecting consolidation test was carried out in practice and the seepage mathematics model of the test was also resolved.The results show that the fractured seam consolidation with chemical resin is feasible.