煤层顶板（coal seam roof），是指正常层序的含煤地层剖面中覆盖在煤层上面的岩层。
...地球科学-科研基金网 关键词：煤层顶板；岩石力学性质；沉积岩体结构；地质力学模型；顶板稳定性 [gap=2384]Keywords：coal roof;rock mechanical property;sedimentary rock mass structure;geological and mechani..
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煤层顶板岩性特征是影响瓦斯含量产生局部变化的因素之一。
Lithological characteristics of the seam roof are one of factors, which lead gas content to change partially.
通过对刘桥矿区6煤层顶板岩层的岩性和岩性组合结构的分析，确定了不同区域的稳定性情况。
Through analysis of lithologic character and composite structure of roof rock of No. 6 coal layer in Liuqiao Coal Mine, the stability of roof rock in different zones are assessed.
通过调查研究，提出了煤层顶板工程地质分类方案，此方案简单易行，验证可靠，适用于煤田勘探阶段。
Based on the investigation and research, a new plan of engineering geology classification is put forward. The plan is easy and reliable, suitable to the exploration stage.
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