Skip-mining type wangeviry stope branch roadway filling and coal mining method

摘要

A skip-mining type wangeviry stope branch roadway filling and coal mining method. A transportation main roadway (1) and stope branch roadways (2) are arranged by adopting a wangeviry coal mining method. A plurality of stope branch roadways are divided into multiple mining stages, based on which the stope branch roadways are skip-mined; and coal pillars are not reserved among the stope branch roadways. The transportation main roadway is a main transportation channel, and the stope branch roadways are coal mining roadways. All the stope branch roadways are sequentially stoped in a skip-mining manner according to the designed mining sequence and are sequentially and timely filled. The coal never stoped or the filled stope branch roadways is/are used as supports for controlling roofs at the two sides of the stope branch roadways, and the stope branch roadways are sequentially stoped according to a plurality of mining stages, and finally the coal pillar-free mining is realized. The method takes full advantages of the wangeviry coal mining method and the filling coal mining method, thus effectively controlling mining-induced overlaying strata fractures and ground surface settlement. The safe and efficient stopping of pressed coal under buildings, railways and water bodies is realized and therefore the surface subsidence is controlled effectively. Meanwhile, the coal mining under water protection conditions is realized, and the method is simple and easy to implement and has a good effect.