[1]张 锐,王 亮,高 杰,等.岩浆岩圈闭区煤层钻屑瓦斯解吸指标敏感性研究[J].西安科技大学学报,2018,(03):417-425.[doi:10.13800/j.cnki.xakjdxxb.2018.0311]
 ZHANG Rui,WANG Liang,GAO Jie,et al.Desorption index sensitivity of drilling cuttings of coal seams in igneous rock trap area[J].Journal of Xi'an University of Science and Technology,2018,(03):417-425.[doi:10.13800/j.cnki.xakjdxxb.2018.0311]
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岩浆岩圈闭区煤层钻屑瓦斯解吸指标敏感性研究(/HTML)
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西安科技大学学报[ISSN:1672-9315/CN:61-1434/N]

卷:
期数:
2018年03期
页码:
417-425
栏目:
出版日期:
2018-05-15

文章信息/Info

Title:
Desorption index sensitivity of drilling cuttings of coal seams in igneous rock trap area
文章编号:
1672-9315(2018)03-0417-09
作者:
张 锐1王 亮13高 杰2王小蕾1陈大鹏1高 尚1
1.中国矿业大学 安全工程学院,江苏 徐州 221116; 2.宁夏理工学院 建筑与环境学院,宁夏 石嘴山,753000; 3.中国矿业大学 煤矿瓦斯与火灾防治教育部重点实验室,江苏 徐州 221116
Author(s):
ZHANG Rui1WANG Liang13GAO Jie2WANG Xiao-lei1CHEN Da-peng1GAO Shang1
(1.School of Safety Engineering,China University of Mining and Technology,Xuzhou 221116,China; 2.School of Architectural Environment,Ningxia Institute of Science and Technology,Shizuishan 753000,China; 3.Key Laboratory of Coal Mine Gas and Fire Prevention and Control,Xuzhou 221116,China)
关键词:
安全科学与工程 钻屑瓦斯解吸指标 岩浆岩 敏感性 迫近度
Keywords:
safety science and engineering desorption index of drilling cuttings igneous rock sensitivity proximity
分类号:
TD 713
DOI:
10.13800/j.cnki.xakjdxxb.2018.0311
文献标志码:
A
摘要:
为研究岩浆热演化区域煤层钻屑瓦斯解吸指标的敏感性,建立杨柳煤矿10煤层岩浆岩圈闭区煤层敏感指标体系,论文采用实验室实验和现场考察相结合的研究方法对岩浆岩圈闭的104,106采区突出预测指标(钻屑瓦斯解吸指标K1,Δh2)的敏感性进行系统研究。结果表明:岩浆岩圈闭区域10煤层瓦斯初始解吸量大,初始解吸速度快,第1 min及第3~5 min瓦斯解吸量随瓦斯压力的变化符合幂指数关系; 依据Δh2指标计算所得的第3~5 min瓦斯解吸量与实测的瓦斯解吸量平均误差为23.30%,而依据K1指标计算的第1 min瓦斯解吸量与实测的瓦斯解吸量平均误差56.22%; 依据Δh2指标计算所得的第3~5 min瓦斯解吸量与实测的瓦斯解吸量平均误差更小,即表明Δh2指标更敏感。同时,现场实测的78组钻屑瓦斯解吸指标结果也表明Δh2指标迫近度方差和标准差较大、对工作面推进过程中的地应力及突出危险程度变化反映能力更强,即Δh2指标更加敏感。因此,结合现场考察和实验室测定结果,将Δh2作为10煤层岩浆岩圈闭区主要敏感指标,K1指标作为辅助指标。
Abstract:
In order to study the sensitivity of coal seam gas desorption indexes of drilling cuttings in magmatic thermal evolution zone and establish a sensitive index system of the No.10 coal seam in the igneous rock trap area,we adopt the methods of combining the laboratory experiments and field investigation to systematically research the sensitivity of the outburst prediction indexes(drilling cuttings gas desorption index K1 and Δh2)in the No.104,106 mining area.The results show that the gas initial desorption volume of the No.10 coal seam is large,and the initial desorption speed is very fast in igneous rock trap area.The gas desorption variation of the first 1 min and during the 3~5 min with the gas pressure are fitting the line with the power index relationship.The average error of gas desorption between the calculation results of Δh2 index and measured gas desorption was 23.30%,while the average error between the calculation of K1 index and measured gas desorption was 56.22%,which show that the Δh2 index is more sensitive.Furthermore,the 78 groups field observations measuring results of drilling cuttings gas desorption indexes also show that the proximity variance and standard deviation of the Δh2 index are larger,which could more exactly reflect the variations of the ground stress and the outburst risk level in the mining process of working face and verify the Δh2 index is more sensitive.Based on the above results,Δh2 was used as the main sensitive index,and K1 was used as the auxiliary index for the No.10 coal seam in the igneous rock trap area.

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备注/Memo

备注/Memo:
收稿日期:2017-09-28 责任编辑:杨泉林
基金项目:国家重点研发计划项目(2016YFC0801406); 国家自然科学基金(51674252); 江苏高校“青蓝工程”项目(苏教师[2016]15号); 江苏省高校优秀中青年教师和校长境外研修计划资助(苏教办师[2015]7号)
通信作者:王 亮(1982-),男,江苏连云港人,博士,教授,E-mail:liangw1982@126.com
更新日期/Last Update: 2018-06-30