上覆硬厚岩层破断规律的机械模拟实验研究

Flexible Network Spread Network Technology in Thirling on the Fully Mechanized Mining Face

采用机械模拟试验方法,研究了硬厚岩层破断时的支承应力及覆岩运移。研究表明:硬厚岩层强度高、破断扰度大,作为主关键层控制其上覆岩层运动,破断前积聚大量弹性能,在采空区边缘形成较高的应力集中区,破断后能量瞬间释放,且在短时间内迅速下沉,极易造成压架和围岩大变形等问题,诱发冲击地压,需加强破断前后支护。

In view of the face at the end of the mining through traditional spread has many short comings,this paper presents a flexible network web mining through at the end of the process, to be shipped, hanging net, put the key working procedure such as network, curtains and networking is introduced in detail. The 22304 Fully Mechanized Coal Face god field using flexible network linking practice shows that the flexible net web technology can guarantee the engineering quality, to ensure the safety of personnel, create the good conditions for mining equipment safe retreat, has good application value in Shigetai Coal Mine of Shendong Mining Group.