大采高工作面甩刀把技术方案设计与选择研究
Design and selection of abandonment technology in large mining height working face
王成真1
作者信息
- 1. 晋能控股装备制造集团 煤炭事业部,山西 晋城 048006
- 折叠
摘要
为了解决大采高工作面甩刀把技术难题,结合大采高工作面煤壁易片帮、设备大型化、矿压显现剧烈、撤架通道断面大等特点,提出了提前停采法、直接贯通法、充填贯通法三种甩刀把技术方案.根据长平矿4321 大采高工作面甩刀把工程实际,运用价值工程理论对三种技术方案的价值系数进行了分析计算,分析结果表明:充填贯通法价值系数要高于其他两种技术,为该工作面甩刀把施工作业的最优技术方案.现场实践证明:充填贯通法具有施工工艺简单、工期短、资源回收率高、安全保障程度高等优点,能够实现大采高工作面安全、高效、快速甩刀把的目的.
Abstract
Aiming at solving the difficulties of abandonment technology in large mining height face,based on the conditions of rib spalling,equipment up-sizing,mine pressure intensifying and big section of dismantling gateway,three plans for abandonment technology was put forward,including advanced stopping mining method,direct breakthrough method and filling breakthrough method.According to the engineering practice of abandonment technology in No.4321 high mining height working face at Changping Mine,the value coefficients for three plans were analyzed and calculated using value engineering theory.The results show that the value coefficient of the filling breakthrough method is higher than other two methods,which is the optimal technical plan of the three in this working face.Practice shows that the filling breakthrough method has the advantages of simple construction technology,short construction period,high resource recovery rate and high level of security,which can achieve the goal of safe,efficient and fast abandoning in large mining height working face.
关键词
大采高/刀把式工作面/直接贯通法/充填贯通法/价值工程Key words
large mining height/"knife handle"working face/direct breakthrough method/filling breakthrough method/value engineering引用本文复制引用
出版年
2024
NETL
NSTL
万方数据