检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
机构地区:[1]安徽理工大学能源与安全学院,安徽淮南232001 [2]国投新集能源股份有限公司口孜东矿,安徽阜阳236153
出 处:《中国安全生产科学技术》2013年第8期22-26,共5页Journal of Safety Science and Technology
摘 要:为了采取合理的瓦斯抽采技术,实现矿井安全高效开采,对朱集矿13-1煤瓦斯基本参数进行了现场和实验室测定,得出了瓦斯含量、瓦斯压力、放散初速度,透气性系数、坚固性系数等参数,并对测定结果进行了理论分析,得出了这些参数的基本规律。结果表明:随着开采深度的增加,在一定深度范围内,其瓦斯压力、瓦斯含量呈线性增长,瓦斯压力与瓦斯含量都比较大;煤层钻孔瓦斯衰减系数较大,该煤层的透气性系数较小,D、K值小于其临界值,可判断出该煤层为难抽煤层且有突出危险性。To accomplish safe and efficient coal mining through appropriate gas extraction technology, the basic pa- rameters of coal and gas of ZhuJi 13-1 coal mine were determined with field and laboratory measurement. The pa- rameters including gas content, gas pressure, initial relief velocity, permeability coefficient, consistent coefficient and other parameters were measured, and the basic law of these parameters were obtained after theoretically'analy- sis. The results showed that: in a certain range of depth, gas pressure is high and gas content is great, and both in- crease linearly with the increase of mining depth; the attenuation coefficient of boreholes in coal seam is big and permeability coefficient of the coal seam is small ; value of D, K is smaller than the critical value, which determines that the gas drainage is difficult and the coal seam is in danger of outburst.
分 类 号:X936[环境科学与工程—安全科学]
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.15