基于岩石工程系统的煤层底板突水机制

Coal Seam Floor Water Inrush Principle Based on Rock Engineering System

为了系统描述煤层底板突水渗流-应力耦合作用机制,引入相互作用过程矩阵,提出优化的岩石工程系统方法,构建了煤层底板突水网络系统。突水网络主对角元素包括采掘工程、应力场、岩体结构和渗流场;系统分为工程活动、采掘活动扰动效应、渗流应力耦合矩阵和水害综合控制方法等4个功能区。研究表明:采掘活动产生一系列并行和时变的影响,是突水发生的诱因;突水通道的形成和演化是渗流-应力耦合作用过程,不同底板岩体结构具有不同的突水发生机制;底板水害防治要从系统的观点出发综合考虑不同因素的影响,在RES网络中施加合理干扰。研究结果可以为复杂水害问题的分析提供思路和方法。

In order to system description of coal seam floor water inrush interstifial flow and stress coupling principle,and interaction process matrix was introduced in,and optimal rock engineering system method was put forward,coal seam water inrush net system was built.The mainly diagonal elements of water inrush net included mining engineering,stress field,rock structure and interstifial flow field,system was classified as four functional zones,which is about engineering,disturbing effect of mining,interstifial flow,stress coupling matrix and water disaster synthetic control and so on.The studying results showed that some paralleled and time variation influence that induced by mining were inducement of water inrush,water channel formation and evolution was process of interstifial flow stress coupling process,different floor rock structure different water inrush principle,and floor water disaster control should synthetic consider different factors influence,and rational disturbing should be added in RES network.The results could referenced for complex water disaster control.