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[1]田宇,高魁,李亮,等.爆破扰动不含断层煤岩及逆断层煤岩裂隙演化对比实验*[J].中国安全生产科学技术,2023,19(5):86-92.[doi:10.11731/j.issn.1673-193x.2023.05.012]
　TIAN Yu,GAO Kui,LI Liang,et al.Comparative test on fracture evolution of coal rock without fault and with reverse fault under blasting disturbance[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2023,19(5):86-92.[doi:10.11731/j.issn.1673-193x.2023.05.012]
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爆破扰动不含断层煤岩及逆断层煤岩裂隙演化对比实验*
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
19
期数:
2023年5期
页码:
86-92
栏目:
职业安全卫生管理与技术
出版日期:
2023-05-31

文章信息/Info

Title:
Comparative test on fracture evolution of coal rock without fault and with reverse fault under blasting disturbance
文章编号:
1673-193X(2023)-05-0086-07
作者:
田宇; 高魁; 李亮; 李梦娣
（1.安徽理工大学 安全科学与工程学院，安徽 淮南 232001；
2.安徽理工大学 煤矿安全高效开采省部共建教育部重点实验室，安徽 淮南 232001)
Author(s):
TIAN Yu;  GAO Kui;  LI Liang;  LI Mengdi
(1.School of Safety Science and Engineering，Anhui University of Science and Technology,Huainan Anhui 232001,China;2.Key Laboratory of Safety and High-efficiency Coal Mining,Ministry of Education,Anhui University of Science and Technology,Huainan Anhui 232
关键词:
逆断层; 爆破应力波; 松软煤层; 煤与瓦斯突出
Keywords:
reverse fault;  blasting stress wave;  soft coal seam;  coal and gas outburst
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2023.05.012
文献标志码:
A
摘要:
为分析爆破应力波在不含断层煤岩以及逆断层构造煤岩中的传播衰减规律，采用理论分析、相似模拟实验和数值模拟相结合的方法研究爆破应力波对不含断层煤层和逆断层构造煤岩的损伤破坏特征。研究结果表明：爆破应力波传播到构造区域时，透射的压缩波作用于松软煤体和断层面岩体；反射的拉伸波反作用于坚硬岩体，使得逆断层模型中的相应测点的水平测值比不含断层煤层模型增大约10%，垂直测值减小约15%，在靠近松软煤体一侧岩体内形成贯通裂纹。爆破振动的累积损伤使不同煤岩介质交界面破坏最为严重,最终裂纹扩展到逆断层下盘煤层内，造成煤体损伤。研究结果可为防止爆破诱导含断层区域发生瓦斯突出事故提供有效参考。
Abstract:
In order to analyze the propagation and attenuation law of blasting stress wave in coal and rock without fault and with reverse fault structure,the damage and failure characteristics of blasting stress wave to coal and rock without fault and with reverse fault structure were studied by the combined methods of theoretical analysis,similar simulation experiment and numerical simulation.The results showed that when the blasting stress wave propagated to the structural area,the transmitted compression wave acted on the soft coal body and the fault surface rock mass.The reflected tensile wave reacted on the hard rock mass,which made the horizontal measured value of the corresponding measuring point in the reverse fault model increase by about 10% and the vertical measured value reduce by about 15% compared with the coal seam model without fault.The penetrating crack was formed in the rock mass near the soft coal side.The cumulative damage of blasting vibration made the interface between different coal and rock media most seriously damaged.Finally,the crack propagated into the coal seam at footwall of reverse fault,resulting in coal body damage.The research results can provide effective reference for preventing the gas outburst accidents in fault-containing areas induced by blasting.

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相似文献/References:

[1]乔国栋,高魁,郑明亮,等.穿层爆破中控制孔对裂隙扩展作用机理试验研究[J].中国安全生产科学技术,2020,16(7):68.[doi:10.11731/j.issn.1673-193x.2020.07.011]
　QIAO Guodong,GAO Kui,ZHENG Mingliang,et al.Experimental study on action mechanism of control holes on cracks propagation in cross-seam blasting[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2020,16(5):68.[doi:10.11731/j.issn.1673-193x.2020.07.011]

备注/Memo

备注/Memo:
收稿日期： 2022-04-28
* 基金项目： 安徽省自然科学基金项目（2208085ME125）；安徽省高校优秀青年人才支持计划项目（gxyq2022016）；国家自然科学基金项目(51604010)；安徽理工大学2021年研究生创新基金项目（2021cx2020）
作者简介： 田宇，硕士研究生，主要研究方向为瓦斯灾害防治。
通信作者： 高魁，博士，副教授，主要研究方向为矿井瓦斯防治。
更新日期/Last Update: 2023-06-12