摘要
针对百色百矿集团东怀煤矿软岩地质条件下,煤炭资源回收率低、回收成本高等问题,基于沿空留巷技术基础,在13I08工作面和13I09工作面进行沿空成巷相关技术探索,提出了联合支护切顶成巷技术,有效地减小围岩变形,并通过对刮板槽机尾和超前支架可伸缩性的改造,解决了采煤机切割不到底板及机尾空顶等问题,取得良好的成巷效果。与沿空留巷技术相比,可少掘进一条巷道,获得了良好的经济效益,同时也为南方软岩条件矿井高效开采提供新思路、新方法。
In view of the problems of low recovery rate and high recovery cost of coal resources under the soft rock geological conditions of Donghuai Coal Mine of Baisebai Mine Group,based on the technology of gob side entry retaining,the technology of gob side entry forming is explored in 13I08 and 13I09 working faces,and the technology of combined support and roof cutting is put forward to effectively reduce the deformation of surrounding rock.Through the analysis of the scalability of scraper slot tail and leading support and compared with the technology of retaining roadway along the goaf,it can drive one roadway less and get good economic benefits.At the same time,it also provides new ideas and new methods for efficient mining in soft rock conditions in South China.
作者
葛磊松
刘燕祥
陈达常
王平
李鹏
任恒
Ge Leisong;Liu Yanxiang;Chen Dachang;Wang Ping;Li Peng;Ren Heng(Baise Guangxi Mining Group Co.,Ltd.,Baise 533000,China;Work Safety Key Lab on Prevention and Control of Gas and Roof Disasters for Southern Goal Mines,Hunan University of Science and Technology,Xiangtan 411201,China;School of Resources,Environment and Safety Engineering,Hunan University of Science and Technology,Xiangtan 411201,China)
出处
《矿业工程研究》
2020年第1期20-25,共6页
Mineral Engineering Research
基金
国家自然科学基金资助项目(51804114,51774130)
湖南科技大学科研启动基金资助项目(E51770)
湖南科技大学矿业工程博士后研究基金资助项目(E61803)。
关键词
软岩地质
沿空成巷
切顶卸压
降本增效
soft rock geology
roadway formation along goaf
roof cutting and pressure relief
cost reduction and efficiency enhancement
