综放复采工作面过空巷合理放煤方式模拟  

Simulation of Top Coal Drawing Ways of Fully Mechanized Caving and Repeated Mining Face Passing Through Abandoned Roadway

作　　者：刘丹[1] 

机构地区：[1]重庆电子工程职业学院,重庆401331

出　　处：《煤矿安全》2017年第6期173-175,179,共4页Safety in Coal Mines

摘　　要：为研究综放复采工作面过大断面空巷时合理放煤方式,以松藻煤业2101综放复采工作面为研究背景,采用计算机模拟对比分析了综放复采工作面过大断面空巷时的3种放煤方式的放煤效果。模拟结果表明:模拟顶煤总量为29.17 t时,当复采工作面前方有大断面空巷时,采用一采一放放煤方式可使顶煤放出27.17 t,放出率与含矸量分别为91%、15%,为3种放煤方式中最高。In order to research the way of top coal drawing in fully mechanized caving and repeated mining face passing through abandoned roadway with large section, taking 2101 fully mechanized caving and repeated mining face of Songzao Coal Mine as the background, computer simulation is used to compare and analyze the effect of three ways of top coal drawing when fully mecha- nized caving and repeated mining face passes through abandoned roadway with large section. The results show that when the simu- lated top coal reserve is 29.17 t, the top coal can be discharged up to 27.17 t by using one coal caving method. The releasing rate and the waste rock content is 91% and 15% respectively.

关 键 词：综放复采工作面 大断面空巷 放煤方式 顶煤运移 PFC模拟 

分 类 号：TD823.49[矿业工程—煤矿开采]