【作者】 朱铭； 周瑞光； 尹代勋； 成彬芳； 张福松； 刘强； 罗信华；

【Author】 Zhu Ming~a,Zhou Ruiguang~a,Yin Daixun~b,Cheng Bingfang~a,Zhang Fusong~a, Liu Quang~a,Luo Xinhua~b a.Institute of Geology and Geophysics,Chinese Academy of sciences,Beijing 100029;b.Nantong mining bureau, b.Nantong mining bureau,Zhongqing,China.6308022

【机构】 中国科学院地质与地球物理研究所； 南桐矿务局；

【摘要】 岩石、岩体中稀有气体氦、氩的发射能反映地质体中现存的应力状态,通过对重庆南桐矿区鱼田堡煤矿煤体应力状态与煤、瓦斯突出关系的研究表明:(1)从抽放孔瓦斯中所测的结果表明,在被卸压煤层的应力集中带He明显的发射,在量值上比空气高几十倍,而且可以随应力集中带的迁移而迁移。(2)氩的组分和同位素的峰值则位于应力释放的位置。(3)在回采面上,氦与氩的变化在瓦斯突出的预测上可以构成重要的数据对:它们对应力状态的响应比瓦斯的响应灵敏度高得多。(4)在抽放孔中氦、氩、甲烷的等值图对于显示煤体(包括其他地质工程体)应力相对大小与方向随时间、空间的动态变化也十分有意义,具有潜在的利用价值。更多还原

【Abstract】 the emanation of helium and argon in rock and geological body can represented the reality situation of the stress.The result of study on relationship between the coal body stress and gasses emanation in YuTianbao mine,Nantong coal field,Chongqing,China show that:（1） in the stress concentration zoneis is located in coal seam of destressed,helium is not only obviously emanation and its quantity value is more larger than in air by more ten times and but also its anomaly peak is shifted as moving the stress concentration zone;（2） the peak values of the composition and isotope of argon are located in the transitional zone and the stress relieving zone;（3） it is probable to utilize helium and argon as an important couple of data to predict the outburst accident on the stop face of coal,because they are much sensitive than coal gas for the ability to respond stress;（4） it is a potential worth that to utilize the isograms ofδHe,⁴⁰Ar/³⁶Ar,δAr and CH₄%to study the relative scale and the dynamic change of the stress in coal body（including another geologic engineering） in extracting hole.更多还原