|本期目录/Table of Contents|

[1]刘军,李宁,吴锦旗,等.不同孔径排放钻孔有效影响半径的时空响应[J].中国安全生产科学技术,2019,15(8):82-87.[doi:10.11731/j.issn.1673-193x.2019.08.013]
 LIU Jun,LI Ning,WU Jinqi,et al.Temporal and spatial response of effective influence radius based on drainage borehole with different diameters[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2019,15(8):82-87.[doi:10.11731/j.issn.1673-193x.2019.08.013]
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不同孔径排放钻孔有效影响半径的时空响应
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
15
期数:
2019年8期
页码:
82-87
栏目:
职业安全卫生管理与技术
出版日期:
2019-08-31

文章信息/Info

Title:
Temporal and spatial response of effective influence radius based on drainage borehole with different diameters
文章编号:
1673-193X(2019)-08-0082-06
作者:
刘军12李宁1吴锦旗3杨通1
(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,河南 焦作 454003;
3.山西兰花科创玉溪煤矿有限责任公司,山西 晋城 048214)
Author(s):
LIU Jun12LI Ning1WU Jinqi3YANG Tong1
(1.School of Safety Science and Engineering,Henan Polytechnic University,Jiaozuo Henan 454003,China;
2.State Key Laboratory Cultivation Base for Gas Geology and Gas Control,Jiaozuo Henan 454003,China;
3.Yuxi Coal Mine,Shanxi Lanhua Coal Industry G
关键词:
超前排放钻孔排放半径时空效应数值模拟
Keywords:
advanced drainage borehole drainage radius temporal and spatial effect numerical simulation
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2019.08.013
文献标志码:
A
摘要:
针对矿井在施工排放钻孔局部防突措施时,已知排放时间,如何确定排放钻孔孔径和钻孔间距这一难题,提出一种钻屑量和钻屑瓦斯解吸指标现场测试法,结合数值模拟计算,确定不同孔径排放钻孔有效排放半径随时间的变化规律。研究结果表明:同一孔径排放钻孔,随着排放时间的增加,有效排放半径呈幂指数增大;不同孔径排放钻孔,随着排放钻孔直径的增加,有效排放半径呈幂指数增大。研究结论对矿井选取合适的排放钻孔孔径及布置参数具有指导意义。
Abstract:
Aiming at the difficult problem for the mine to determine the drainage borehole diameter and borehole spacing under given drainage time when constructing the local outburst prevention measures of drainage borehole,a field test method for the amount and the gas desorption index of drill cuttings was proposed.Combined with the numerical simulation calculation,the variation laws of the effective drainage radius of drainage borehole with different diameters against time were determined.The results showed that for the drainage borehole with the same diameter,the effective drainage radius presented the power exponential increase with the increase of drainage time.While for the drainage borehole with different diameters,the effective drainage radius presented the power exponential increase with the increase of diameter of the drainage borehole.The results have the guiding significance for the mine to select the appropriate diameter and layout parameters of drainage borehole.

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备注/Memo

备注/Memo:
收稿日期: 2019-06-03;数字出版日期: 2019-08-28
* 基金项目: 高等学校重点科研项目应用研究计划(19B440004,19B620001);河南省高校基本科研业务费专项资金(NSFRF180426,NSFRF180430)
作者简介: 刘军,博士,副教授,主要研究方向为瓦斯地质及瓦斯灾害防治的教学与科研工作。
更新日期/Last Update: 2019-09-04