采空区下近距离煤层综采工作面支架载荷分析  

Support Load Analysis of Fully-mechanized Mining Face in Close Distance Coal Seam Under Goaf

作　　者：郭帅[1] 孔宪法[1] 康天合[1] 王成帅[1] 

机构地区：[1]太原理工大学采矿工艺研究所,山西太原030024

出　　处：《煤矿安全》2013年第5期214-217,共4页Safety in Coal Mines

基　　金：山西省科技攻关(工业)资助项目(2011032101504)

摘　　要：基于采空区下近距离煤层采高和顶板岩层结构,按照支架的力源将采空区下近距离煤层开采时顶板分为"直接顶岩层+垮落带岩层"、"直接顶岩层+垮落带岩层+裂隙带岩层"、"直接顶岩层+基本顶岩层+垮落带岩层"、"直接顶岩层+基本顶岩层+垮落带岩层+裂隙带岩层"4种类型。针对不同类型顶板结构,运用相应的力学模型分析其支架-围岩关系,计算采空区下近距离煤层工作面载荷,确定支架的工作阻力,给出定量的计算公式。Based on mining height and the roof strata structure of close distance coal seam under goal, the roof is divided into four types according to the power source of the support ： immediate roof strata and caving zone strata, immediate roof strata and caving zone strata and fractured zone strata, immediate roof strata and basic roof strata and caving zone strata, immediate roof strata and basic roof strata and caving zone strata and fractured zone strata. According to different types of roof strata structure, support and surrounding relation- ship is analyzed by using corresponding mechanical models. The working face load of close distance coal seam under goat＂ is calculated, and then the working resistance of support is determined. The proposed quantitative calculation formula is also verified in the field of engineering practice.

关 键 词：采空区 近距离煤层 支架载荷 垮落带 裂隙带 

分 类 号：TD353[矿业工程—矿井建设]