采场调压数学模型在煤矿火区治理中的应用

Application of the Mathematical Model for Pressure Adjustment in Controlling the Fire Zone in Coal Mines

采场调压可改变采场内气体流动的状况，抑制采空区自然发火。笔者采用Ｗａｒｄ 非线性运动方程，建立采场调压数学模型，利用有限元法对其进行求解。通过对小恒山煤矿东正巷出口的调压进行计算机模拟，从而掌握火区内部参数的变化趋势，及时预测调压潜力及效果，指导调压措施的进一步实施。

Pressure adjustment in the mining field could change the state of air flow and control the spontancous fire in the goaf.Based on Ward′s nonlinear motion equation,a mathematical model for air pressure adjustment in the mining field is established and computed by the finite element technique.According to the computer simulation of air pressure adjustment at the exit of Dongzheng entry in Xiaohengshan mine,variable tendency of the inside parameter in the fire zone has been obtained and the potentiallity and effect of air pressure adjustment are forecasted in time,so that further implementation of the measure of the pressure adjustment could be guided.