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[1]曹文涛,杨增强,张连昆,等.高压水射流卸压防治复合动力灾害机理及应用[J].中国安全生产科学技术,2020,16(2):18-23.[doi:10.11731/j.issn.1673-193x.2020.02.003]
 CAO Wentao,YANG Zengqiang,ZHANG Liankun,et al.Mechanism and application of pressure relief with highpressure water jet to prevent and control compound dynamic disaster[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2020,16(2):18-23.[doi:10.11731/j.issn.1673-193x.2020.02.003]
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高压水射流卸压防治复合动力灾害机理及应用
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
16
期数:
2020年2期
页码:
18-23
栏目:
学术论著
出版日期:
2020-02-29

文章信息/Info

Title:
Mechanism and application of pressure relief with highpressure water jet to prevent and control compound dynamic disaster
文章编号:
1673-193X(2020)-02-0018-06
作者:
曹文涛杨增强张连昆李常浩
(1.运城职业技术学院 矿山工程系,山西 运城 044000;
2.中国矿业大学(北京) 能源与矿业学院,北京 100083;
3.山西潞安集团 余吾煤业有限公司,山西 长治 046100)
Author(s):
CAO Wentao YANG Zengqiang ZHANG Liankun LI Changhao
(1.Department of Mining Engineering,Yuncheng Polytechnic College,Yuncheng Shanxi 044000,China;
2.College of Energy and Mining,China University of Mining and TechnologyBeijing,Beijing 100083,China;
3.Yuwu Mining Co.,Ltd.,Lu’an Group,Changzhi Shanxi 046100,China)
关键词:
高压水射流卸压增透复合动力灾害高瓦斯冲击地压
Keywords:
high pressure water jet pressure relief and permeability enhancement compound dynamic disaster high gas rock burst
分类号:
X936;TD353
DOI:
10.11731/j.issn.1673-193x.2020.02.003
文献标志码:
A
摘要:
为研究高压水射流卸压防治复合动力灾害的可行性,以余吾煤业高瓦斯矿井东翼采区内首采N2105工作面工程地质条件为背景,通过现场调研、理论分析、数值模拟和工业性试验等方法,对N2105进风平巷两帮采取高压水射流卸压防治效果进行了研究。结果表明:对巷帮煤体采取高压水射流卸压技术,煤体在高压水射流的冲击力和扰动应力波共同作用下瞬间发生破坏;巷帮侧支承应力分布曲线由原有的“单高峰值”转变为“内低外高双峰值”,受以上支承应力变化的影响,底板煤岩体内难以形成范围较大且连续的塑性应力状态区;现场电磁辐射和矿压监测结果表明高压水射流技术对煤层卸压增透效果显著,降低了巷道发生复合动力灾害的可能性。研究结果可为同类矿井复合动力灾害的防治提供参考和借鉴。
Abstract:
In order to study the feasibility of pressure relief with highpressure water jet to prevent and control the compound dynamic disasters,taking the engineering geological conditions of the first mining N2105 working face in the east wing mining area of Yuwu high gas mine as the background,the prevention and control effect of pressure relief with highpressure water jet at both sides of N2105 intake entry was studied by means of field investigation,theoretical analysis,numerical simulation and industrial test.The results showed that when adopting the pressure relief technology with highpressure water jet on the coal body at roadway side,the coal body destroyed instantaneously under the combined effect of impact force and disturbed stress wave by the highpressure water jet.The distribution curve of bearing stress at roadway side converted from the original “single high peak value” to “low internal and high external peak values”.It was difficult to form the large and continuous plastic stress state area in the bottom coal body due to the influence of bearing stress.The field monitoring results of electromagnetic radiation and mine pressure showed that the highpressure water jet technology had significant effect on the pressure relief and permeability enhancement of coal seam,and reduced the possibility of compound dynamic disasters in the roadway.The research conclusions can provide reference for the prevention and control of compound disasters in similar mines.

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备注/Memo

备注/Memo:
收稿日期: 2019-10-27;网络首发日期: 2020-02-28
* 基金项目: 山西省高等学校科技创新项目(20161121);运城职业技术学院科研项目(KY2016-7)
作者简介: 曹文涛,硕士,讲师,主要研究方向为安全技术及工程、煤矿灾害防治。
更新日期/Last Update: 2020-03-16