煤矿安全2018，Vol.49Issue(2)：159-162,4.DOI:10.13347/j.cnki.mkaq.2018.02.043
新集二矿1#煤层开采采空区侧向卸压瓦斯排放宽度研究
Study on Gas Emission Width of Pressure Relief Along the Lateral Direction of Goaf in 1# Coal Seam of Xinji No.2 Mine
徐遵玉1
作者信息
- 1. 瓦斯灾害监控与应急技术国家重点实验室,重庆400037;中煤科工集团重庆研究院有限公司,重庆400037
- 折叠
摘要
Abstract
In order to study the pressure relief range and gas emission width after extraction of stope,according to the gas geological condition of Xinji No.2 Mine 1# coal seam,field measurement of gas content,drilling cuttings and analytical indexes are carried out along the lateral direction of the goaf in 210108 stope,combined with the numerical simulation results,the width of lateral pressure relief range is determined.The results of field test data and numerical simulation show that the width of gas unloading pressure in the 210108 working face of 1# coal seam is 0 to 12 m;the lateral vertical stress within the range of 0 to 10 m from the goaf is the stress reduction zone;combined with the actual situation of the field,it is determined that the pressure relief width of this surface is 10 m.关键词
采空区侧向/支承压力/卸压范围/瓦斯排放/残余瓦斯含量/钻屑量Key words
lateral direction of goaf/abutment pressure/pressure relief range/gas emission/residual gas content/drillings volume分类
矿业与冶金引用本文复制引用
徐遵玉..新集二矿1#煤层开采采空区侧向卸压瓦斯排放宽度研究[J].煤矿安全,2018,49(2):159-162,4.
