Distribution of lateral floor abutment pressure in a stope

In order to study the distribution of lateral floor abutment pressure at a working face,we first used elasticity theory to establish a distribution model of lateral floor abutment pressure and then analysed its distribution.Second,we established a three-dimensional numerical simulation model of the Haizi Coal Mine No.86 mining area by using FLAC^（3D）（ITASCA Consulting Group） software.We investigated the distribution of lateral floor abutment pressure of a stope,which indicated that the position of abutment pressure peak varies at different floor depths.We then determined the rational reinforcement range of a floor roadway,based on the conclusion reached earlier.Finally,we used our conclusions in support of the No.86 mining area crossing-roadway.The supported crossing-roadway remained stable when mining the upper workface,which validates the accuracy of our numerical simulation and provides a future reference for the support of span-roadways under similar conditions.

为了在一个工作学习侧面的地板桥墩压力的分发，面对，我们首先使用了弹性理论建立侧面的地板桥墩压力的一个分发模型然后分析了它的分发。第二，我们由使用 FLAC3D (ITASCA 商量组) 建立了 Haizi 煤矿号码 86 采矿区域的一个三维的数字模拟模型软件。我们调查了采矿场的侧面的地板桥墩压力的分发，它显示桥墩压力山峰的位置在不同地板深度变化。我们然后决定了一条地板车道的合理加强范围，基于更早得出的结论。最后，我们在号码 86 采矿区域的支持使用了我们的结论十字路口车道。支持的十字路口车道的仍然是的马厩什么时候采矿上面的 workface，它验证我们的数字模拟的精确性并且在类似的条件下面为跨度车道的支持提供一本未来参考书。