This article introduces the concept and principle of a expert system of roofsupport, its process of developing, main function and its guiding meaning in coal mine production is also contained.
The underhand slice stoping method, with reinforced concrete for roofsupport, is recommended to mine narrow veins where the mining technological conditions are very complicated.
针对采矿技术条件复杂的薄矿脉开采，推荐采用有钢筋混凝土护顶的下向分层充填采矿法。
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Thereby it can be seen that the load of Shi ge-jie mine coal pillar roof with sheet character and fluctuate character are the key factors of support selecting.