富水条件下冲击煤体钻屑法试验研究

doi:10.13722/j.cnki.jrme.2022.0215

Abstract
Figure/Table
References (0)
Related Citation (15)

Download: PDF (5038 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract Under the influence of Luohe Formation aquifers in Shaanxi Binchang and Yonglong mining areas，the drilling index is difficult to clearly reflect the stress state of coal mass，which leads to the failure of drilling method and affects effective monitoring and pre-warning of rock burst. Taking natural and water-containing coal mass as the research object，the coal drilling test under different stress levels was carried out by using the self-developed triaxial loading and drilling platform to explore the mechanical response，borehole effect，evolution law of stress and energy，and damage failure mode of the water-containing coal mass. The results show that：(1) With the increase of the moisture content，the damage failure mode changes from“point-like”friction damage between microstructures to interlayer slip，dislocation and friction with weak structural planes. The number of cracks in the horizontal and vertical directions increase. (2) The frequency of dynamic response is positively correlated with the moisture content. Compared with natural coal body，the elastic energy storage capacity of water-bearing coal body decreases. For dynamic event，the incubation process is shortened，the frequency is increased but the magnitude of single energy release is reduced. (3) the damage of boreholes of natural coal structure is divided into three stages as movement concentration，crack initiation and crack penetration. With the increase of the moisture content，the sample only shows the characteristics of the first two stages. (4) The damage range of borehole deformation is positively correlated with the moisture content. When the moisture content is 1.4%，2.3%，and 3.7%，respectively，the damage radius along the borehole center is 2.03，2.98，and 3.36 times the drilling radius. The test results can provide reference for the correction of drilling index and disaster control under rich water condition.

Key words： mining engineering rock burst drilling method water-bearing coal mass triaxial compression test acoustic emission

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	ZHU Guangan1
	LIU Haiyang1
	SHEN Wei2
	LIU Huan1
	JIANG Qipeng1
	SU Boru1

Cite this article:

ZHU Guangan1,LIU Haiyang1,SHEN Wei2, et al. Experimental research on burst-prone coal mass of drilling method under rich water condition[J]. , 2022, 41(12): 2417-2431.

URL:

http://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2022.0215 OR http://rockmech.whrsm.ac.cn/EN/Y2022/V41/I12/2417

[2]	赵本均. 冲击矿压及防治[M]. 北京：煤炭工业出版社，1995：345–374.(ZHAO Benjun. Rockburst and prevention[M]. Beijing：Coal Industry Press，1995：345–374.(in Chinese))
[7]	勃罗纳. 煤层极限应力[J]. 矿业译丛，1983，1(1)：20–28.(BRONA G. Ultimate stress of coal seam[J]. Mining Translations，1983，1(1)：20–28.(in Chinese))
[9]	潘一山. 煤体钻粉理论的研究[J]. 阜新矿业学院学报，1985，7(增1)：91–97.(PAN Yishan. Research on the theory of drilling cuttings method for measuring coal body drilling powder[J]. Journal of Fuxin Mining Institute，1985，7(Supp.1)：91–97.(in Chinese))
[5]	陈峰，潘一山，李忠华，等. 利用钻屑法对卸压钻孔措施效果的分析评价[J].岩土工程学报，2013，35(增2)：266–270.(CHEN Feng，PAN Yishan，LI Zhonghua，et al. Analysis and evaluation of effects of borehole pressure relief measures by drilling cutting method[J]. Chinese Journal of Geotechnical Engineering，2013，35(Supp.2)：266–270.(in Chinese))
[11]	陈峰. 利用钻屑法预测冲击地压危险性的试验研究[硕士学位论文][D]. 阜新：辽宁工程技术大学，2014.(CHEN Feng. Experimental study on prediction of rock burst hazard by drilling cuttings method[M. S. Thesis][D]. Fuxin：Liaoning Technical University，2014.(in Chinese))
[13]	中华人民共和国国家标准编写组. GB/T 25217.6—2019 冲击地压测定、监测与防治方法第6部分：钻屑监测方法[S]. 北京：中国标准出版社，2019.(The National Standards Compilation Group of People?s Republic of China.GB/T 25217.6—2019 Measurement，monitoring and prevention methods of rock burst—Part 6：Drilling cuttings monitoring method[S]. Beijing：Standards Press of China，2019.(in Chinese))
[16]	王文，李化敏，顾合龙. 三维动静组合加载含水煤样强度特征试验研究[J]. 岩石力学与工程学报，2017，36(10)：2 406–2 414. (WANG Wen，LI Huamin，GU Helong. Experimental study of strength characteristics of water-saturated coal specimens under 3D coupled static-dynamic loadings[J]. Chinese Journal of Rock Mechanics and Engineering，2017，36(10)：2 406–2 414.(in Chinese))
[18]	朱广安，窦林名，丁自伟. 超应力卸载作用下煤样冲击破坏试验研究[J]. 煤炭学报，2018，43(5)：1 258–1 271.(ZHU Guangan，DOU Linming，DING Ziwei. Experimental study on rock burst of coal samples under overstress and triaxial unloading[J]. Journal of China Coal Society，2018，43(5)：1 258–1 271.(in Chinese))
[22]	李振雷，何学秋，窦林名，等. 煤冲击破坏过程规律及同源声电响应特征[J].岩石力学与工程学报，2019，38(10)：2 057–2 068.(LI Zhenlei，HE Xueqiu，DOU Linming，et al. Bursting failure behavior of coal and response of acoustic and electromagnetic emissions[J]. Chinese Journal of Rock Mechanics and Engineering，2019，38(10)： 2 057–2 068.(in Chinese))
[27]	唐春安，唐世斌. 岩体中的湿度扩散与流变效应分析[J]. 采矿与安全工程学报，2010，27(3)：292–298.(TANG Chun?an，TANG Shibin. Humidity diffusion and rheological behavior of rock under humidity condition[J]. Journal of Mining and Safety Engineering，2010，27(3)：292–298.(in Chinese))
[3]	窦林名，赵从国，杨思光. 煤矿开采冲击矿压灾害防治[M]. 徐州：中国矿业大学出版社，2006：91–93.(DOU Linming，ZHAO Congguo，YANG Siguang. Prevention and treatment of rock burst disaster in coal mining[M]. Xuzhou：China University of Mining and Technology Press，2006：91–93.(in Chinese))
[14]	茅献彪，陈占清，徐思朋，等. 煤层冲击倾向性与含水率关系的试验研究[J]. 岩石力学与工程学报，2001，20(1)：49–52.(MAO Xianbiao，CHEN Zhanqing，XU Sipeng，et al. Experimental study on the relation between the burst tendency and water content in coal seam[J]. Chinese Journal of Rock Mechanics and Engineering，2001，20(1)：49–52.(in Chinese))
[25]	李舜酩，郭海东，李殿荣. 振动信号处理方法综述[J].仪器仪表学报，2013，34(8)：1 907–1 915.(LI Shunming，GUO Haidong，LI Dianrong. A survey of vibration signal processing methods[J]. Journal of Instrumentation，2013，34(8)：1 907–1 915.(in Chinese))
[29]	孟召平，彭苏萍，傅继彤. 含煤岩系岩石力学性质控制因素探讨[J].岩石力学与工程学报，2002，21(1)：102–106.(MENG Zhaoping，PENG Suping，FU Jitong. Study on control factors of rock mechanics properties of coal-bearing formation[J]. Chinese Journal of Rock Mechanics and Engineering，2002，21(1)：102–106.(in Chinese))
[1]	窦林名，何学秋. 冲击矿压防治理论与技术[M]. 徐州：中国矿业大学出版社，2001：133–140.(DOU Linming，HE Xueqiu. Theory and technology of rockburst prevention[M]. Xuzhou：China University of Mining and Technology Press，2001：133–140.(in Chinese))
[4]	窦林名，田鑫元，曹安业，等. 我国煤矿冲击地压防治现状与难题[J]. 煤炭学报，2022，47(1)：152–171.(DOU Linming，TIAN Xinyuan，CAO Anye，et al. Present situation and problems of coal mine rock burst prevention and control in China[J]. Journal of China Coal Society，2022，47(1)：152–171.(in Chinese))
[6]	佩图霍夫H M. 煤矿冲击地压[M]. 北京：煤炭工业出版社， 1980：35–49.(PETUKHOV H M. Coal mine rock burst[M]. Beijing：Coal Industry Press，1980：35–49.(in Chinese))
[8]	赵阳升，梁纯升，刘成丹. 钻屑法测量围岩压力的探索[J]. 岩土工程学报，1987，9(2)：106–112.(ZHAO Yangsheng，LIANG Chunsheng，LIU Chengdan. Exploration on measuring surrounding rock pressure by drilling cuttings method[J]. Chinese Journal of Geotechnical Engineering，1987，9(2)：106–112.(in Chinese))
[10]	赵本钧，章梦涛. 钻屑法的研究和应用[J]. 辽宁工程技术大学学报，1985，7(增1)：13–28.(ZHAO Benjun，ZHANG Mengtao. Research and application of drilling cuttings method[J]. Journal of Liaoning University of Engineering and Technology，1985，7(Supp. 1)：13–28.(in Chinese))
[12]	曲效成，姜福兴，于正兴，等. 基于当量钻屑法的冲击地压监测预警技术研究及应用[J]. 岩石力学与工程学报，2011，30(11)：2 346– 2 351.(QU Xiaocheng，JIANG Fuxing，YU Zhengxing，et al. Rockburst monitoring and precaution technology based on equivalent drilling research and its applications[J]. Chinese Journal of Rock Mechanics and Engineering，2011，30(11)：2 346–2 351.(in Chinese))
[17]	何江. 煤矿采动动载对煤岩体的作用及诱冲机制研究[博士学位论文][D]. 徐州：中国矿业大学，2013.(HE Jiang. Research of mining dynamic loading effect and its induced rock burst in coal mine[Ph. D. Thesis][D]. Xuzhou：China University of Mining and Technology，2013.(in Chinese))
[19]	王常彬，曹安业，井广成，等. 单轴受载下岩体破裂演化特征的声发射CT成像[J]. 岩石力学与工程学报，2016，35(10)：2 044–2 053. (WANG Changbin，CAO Anye，JING Guangcheng，et al. Evolution characteristics of rock fracture under uniaxial loading by combining acoustic emission and CT imaging[J]. Chinese Journal of Rock Mechanics and Engineering，2016，35(10)：2 044–2 053.(in Chinese))
[21]	艾婷，张茹，刘建锋，等. 三轴压缩煤岩破裂过程中声发射时空演化规律[J]. 煤炭学报，2011，36(12)：2 048–2 057.(AI Ting，ZHANG Ru，LIU Jianfeng，et al. Space-time evolution rules of acoustic emission locations under triaxial compression[J]. Journal of China Coal Society，2011，36(12)：2 048–2 057.(in Chinese))
[23]	沈威. 煤层巷道掘进围岩应力路径转换及其冲击机制研究[博士学位论文][D]. 徐州：中国矿业大学，2018.(SHEN Wei. Study on stress path trans-formation and impact mechanism of surrounding rock in coal seam roadway excavation[Ph. D. Thesis][D]. Xuzhou：China University of Mining and Technology，2018.(in Chinese))
[28]	贾海梁，王婷，项伟，等. 含水率对泥质粉砂岩物理力学性质影响的规律与机制[J]. 岩石力学与工程学报，2018，37(7)：1 618–1 628. (JIA Hailiang，WANG Ting，XIANG Wei，et al. Influence of water content on the physical and mechanical behaviour of argillaceous siltstone and some microscopic explanations[J]. Chinese Journal of Rock Mechanics and Engineering，2018，37(7)：1 618–1 628.(in Chinese))
[30]	王红胜. 沿空巷道窄帮蠕变特性及其稳定性控制技术研究[博士学位论文][D]. 徐州：中国矿业大学，2011.(WANG Hongsheng. Research on the creep property and its stability control technology of gob-side entry's narrow side[Ph. D. Thesis][D]. Xuzhou：China University of Mining and Technology，2011.(in Chinese))
[15]	陈田. 水对煤样力学性质与破坏形式的影响[硕士学位论文][D]. 徐州：中国矿业大学，2017.(CHEN Tian. Effects of water on mechanical properties of and failure modes in coal[M. S. Thesis][D]. Xuzhou：China University of Mining and Technology，2017.(in Chinese))
[20]	CAO A，WANG C，JING G，et al. Passive velocity tomography for mudstone under uniaxial compression using acoustic emission[J]. Geosciences Journal，2016，21(1)：93–109.
[24]	王常彬. 真三轴加卸载条件下煤样应力能量演化特征与破裂损伤规律[硕士学位论文][D]. 徐州：中国矿业大学，2017.(WANG Changbin. Stress-energy evolution characteristics and fracture damage law of coal samples under true triaxial loading and unloading conditions[M. S. Thesis][D]. Xuzhou：China University of Mining and Technology，2017.(in Chinese))
[26]	丁康，陈健林，苏向荣. 平稳和非平稳振动信号的若干处理方法及发展[J]. 振动工程学报，2003，16(1)：5–14.(DING Kang，CHEN Jianlin，SU Xiangrong. Several processing methods and development of stationary and nonstationary vibration signals[J]. Journal of Vibration Engineering，2003，16(1)：5–14.(in Chinese))