摘要
放顶煤技术的特点是投资少,单产高,地质条件适应性强,特别是对不规则的工作面,可将呆滞的块段很好地采出。同时,具有降低巷道掘进量、降低开采成本、减少工作面搬家次数等优点。根据鹤煤三矿的实际情况和影响综放工作面顶煤冒放性的主要因素,采用了模糊评价方法,对顶煤的冒放性进行了综合评价与分类。
Top coal caving technology is characterized by low investment,high yield and high adaptability of geological conditions.In particular,when encounter anomalistic face,top coal caving technology could do better in mining.Simultaneously,the volume of tunnel excavation,the cost of mining and the frequency of face moving are reduced.In this paper,combined with the actual situation of Hebi No.3 Coal Mine and the main factors influencing the top coal capability of fully-mechanized caving face,the top coal capability of fully-mechanized caving face was evaluated and classified by fuzzy evaluation.
出处
《中州煤炭》
2011年第2期26-28,48,共4页
Zhongzhou Coal
关键词
放顶煤
影响因素
顶板特征
模糊评价
top coal caving
affected factors
roof features
fuzzy evaluation
