煤田地质与勘探Issue(5)：13-16,24,5.DOI:10.3969/j.issn.1001-1986.2014.05.004
基于力能分析的平煤五矿己四采区煤与瓦斯突出危险性预测
Outburst prediction in Ji 4# mining district in Pingdingshan No.5 mine based on force and energy analysis
张明杰 1付帅 2田加加1
作者信息
- 1. 河南理工大学安全科学与工程学院，河南焦作 454003
- 2. 河南省瓦斯地质与瓦斯治理重点实验室-省部共建国家重点实验室培育基地，河南焦作 454003
- 折叠
摘要
Abstract
According to the prediction data of gas content and gas pressure of Ji 15# coal seam of Pingdingshan No.5 mine, from the view of force and energy, the influence of ground stress and gas as well as coal strength on coal and gas outburst is analyzed. It is found that under action of ground stress, elastic potential energy is much higher than gas expansion energy in the seam in Ji 4# mining district, i.e., ground stress mainly composed of tectonic stress is the major factor influencing outburst. In combination with the geological factors in the district and gas desorption of the seam, it is determined that the bottom index for coal and gas outburst risk area is gas content 5.4 m3/t in raw coal, or the absolute gas pressure is 0.79 MPa .The bottom index corresponds to the seam floor of elevation -600 m. Therefore the areas above-600 m do not have outburst risk and there exist outburst risk below -600 m. The study results guide effectively the gas control in the coal mine.关键词
煤与瓦斯突出/弹性潜能/瓦斯膨胀能/可解吸瓦斯量Key words
coal and gas outburst/elastic potential energy/gas expansion energy/gas desorption分类
矿业与冶金引用本文复制引用
张明杰,付帅,田加加..基于力能分析的平煤五矿己四采区煤与瓦斯突出危险性预测[J].煤田地质与勘探,2014,(5):13-16,24,5.
