极薄煤层采煤方法分类与适用条件分析

The Analysis of Mining Methods Classification and Applicable Conditions in Ultra-thin Coal

在对国内极薄煤层开采技术的现状和发展趋势调查分析的基础上,从采场布置形式、采空区处理方式、回采工艺、回采工作面有无作业人员4个维度对现有的极薄煤层的采煤方法进行了分类,并从煤层赋存条件、设备性能、生产规模、管理水平等8个方面分析选择极薄煤层采煤方法的影响因素,总结各种落煤方法、顶板管理方式、运输方法的适用条件,提出煤厚在0.5~0.8 m及0.5 m以下选择极薄采煤方法的建议。

In this paper,the mining method of the existing ultra-thin coal seam is classified based on the current situation analysis and development trend of domestic thin seam mining technology.The clas-sification includes 4 dimensions：stope layout form,goaf treatment,mining technique,and the workers quantity in the working face.The factors affecting ultra -thin mining methods were analyzed from coal seam conditions,equipment performance,production scale,management level,and so on.Various coal drop method,roof management and the applicable conditions of transportation method were given. The selection of mining method for coal seam thickness in 0.5m ~0.8m and 0.5m below was pro-posed.