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就难采煤层的涵义及其分类进行了较为全面的阐述 ,同时研究确定了各种类型难采煤层的定量化指标 ,依据这些定量化指标可以明确地区分煤层开采的难易程度 ,为煤层的进一步开发开采技术经济评价提供必要的基础数据 .
The meaning and classification of hard-to-seams are discussed in detail. At the same time, the quantitative indexes of various types of hard-to-seams are determined. Based on these quantitative indexes, the difficulty of coal seam mining can be clearly distinguished. The further development of coal seam mining technical and economic evaluation provide the necessary basic data.