基于剩余能量释放速率指数的煤岩组合体冲击倾向性判定

doi:10.13722/j.cnki.jrme.2022.0882

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

Download: PDF (1063 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract Coal-rock bursting liability is the natural attribute and the key influencing factor of coal-rock rockburst disasters. The coal-rock combined body was taken as the research object to accurately judge the bursting liability of coal and rock，and the uniaxial cyclic loading and unloading test was carried out on the coal-rock combined body，The elastic strain energy of the combined body under different stress levels was obtained，and the function between the elastic strain energy and the stress level was established. A new method for calculating elastic strain energy at peak stress time was proposed. A residual energy release rate index that comprehensively considers the peak strength，elastic strain energy，energy dissipation of the failure process and failure time of the specimen was proposed based on this，and the bursting liability judgment interval was given in combination with the existing indicators，and the rationality was verified. The results show that：(1) With the increase of the stress，the elastic strain energy shows a “slow-fast-slow” growth law，which corresponds to the compaction stage，elastic stage and plastic stage of the stress-strain curve. (2) The evolution laws of input energy density，elastic strain energy and dissipated energy density are similar to the evolution law of stress，all increasing with the increase of the stress. The increase of input energy density is the largest，and the increase of dissipated energy density is the smallest. (3) The elastic strain energy of the combined body at different stress levels was obtained through the experiment，and the functional relationship between the elastic strain energy and the stress level was established，that is，the square of the stress at any time had a good linear relationship with the elastic strain energy. A new method for calculating elastic strain energy at peak stress time was proposed. (4) Considering the peak strength of the specimen，elastic strain energy，energy dissipation in the failure process and failure time and other factors，a new bursting liability identification index was proposed：the residual energy release rate index WT，which is the ratio of the residual energy obtained by subtracting the post-peak dissipative energy density from the pre-peak elastic strain energy and the dynamic failure time represents the energy release in unit time when the coal-rock is impacted and damaged. This index is closely related to compressive strength Rc，bursting energy index KE，elastic energy index WET，and dynamic failure time DT. The evaluation interval of the residual energy release rate index WT was given：when WT≤0，the coal rock has no bursting liability；when 0＜WT≤14.5，the coal rock has a weak bursting liability；when WT＞14.5，the coal rock has a strong bursting liability. (5) The multi-sample method was used to verify the rationality of the proposed residual energy release rate index WT. This index was used to evaluate the bursting liability of coal seams in 8 mining areas，the results show that the evaluation accuracy of the residual energy release rate index WT is as high as 93.75%. The proposed new index to evaluate the bursting liability of coal rock has high accuracy and good rationality，which can reflect the actual bursting liability of coal and rock，and has good promotion and application value.

Key words： rock mechanics bursting liability coal-rock combined body elastic strain energy residual energy release rate rationality verification

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	CHEN Guangbo1
	2
	LI Tan1
	2
	ZHANG Guohua3
	LI Jianwei1
	LIU Gang3
	HE Yongliang4
	5
	LI Yuan1

Cite this article:

CHEN Guangbo1,2,LI Tan1, et al. Determination of bursting liability of coal-rock combined body#br# based on residual energy release rate index[J]. , 2023, 42(6): 1366-1383.

URL:

http://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2022.0882 OR http://rockmech.whrsm.ac.cn/EN/Y2023/V42/I6/1366

[1]	袁亮. 深部采动响应与灾害防控研究进展[J]. 煤炭学报，2021，46(3)：716-725.(YUAN Liang. Research progress of mining response and disaster prevention and control in deep coal mines[J]. Journal of China Coal Society，2021，46(3)：716-725.(in Chinese))
[21]	王超. 基于有效冲击能量速率的煤层冲击倾向性指数研究[J]. 煤矿开采，2017，22(5)：9-12.(WANG Chao. Study of coal seam rock burst tendency index under effectively impact energy rate[J]. Coal Mining Technology，2017，22(5)：9-12.(in Chinese))
[6]	齐庆新，窦林名. 冲击地压理论与技术[M]. 徐州：中国矿业大学出版社，2008：58-70.(QI Qingxin，DOU Linming. Theory and technology of rockburst[M]. Xuzhou：China University of Mining and Technology Press，2008：58-70.(in Chinese))
[16]	郭建卿，苏承东. 不同煤试样冲击倾向性试验结果分析[J]. 煤炭学报，2009，34(7)：897-902.(GUO Jianqing，SU Chengdong. Analysis on experimental results of rock burst tendency of different coal samples[J]. Journal of China Coal Society，2009，34(7)：897-902. (in Chinese))
[26]	GONG F Q，YAN J Y，LI X B，et al. A peak-strength strain energy storage index for bursting proneness of rock materials[J]. International Journal of Rock Mechanics and Mining Science，2019，117：76-89.
[36]	吴兴荣，窦林名. 坚硬煤岩组合条件下冲击矿压发生机制[J]. 煤矿开采，2006，11(4)：70-72.(WU Xingrong，DOU Linming. Mechanism of rock burs tunder the combined conditions of hard coal and hard rock[J]. Coal Mining Technology，2006，11(4)：70-72.(in Chinese))
[42]	陈绍杰，尹大伟，张保良，等. 顶板-煤柱结构体力学特性及其渐迚破坏机制研究[J]. 岩石力学与工程学报，2017，36(7)：1 588-1 598. (CHEN Shaojie，YIN Dawei，ZHANG Baoliang，et al. Mechanical characteristics and progressive failure mechanism of roof-coal pillar structure[J]. Chinese Journal of Rock Mechanics and Engineering，2017，36(7)：1 588-1 598.(in Chinese))
[46]	宫凤强，赵英杰，王云亮，等. 煤的冲击倾向性研究进展及冲击地压“人-煤-环”三要素机制[J]. 煤炭学报，2022，47(5)：1 974-2 010. (GONG Fengqiang，ZHAO Yingjie，WANG Yunliang，et al. Research progress of coal bursting liability indices and coal burst“Human-Coal-Environment”three elements mechanism[J]. Journal of China Coal Society，2022，47(5)：1 974-2 010.(in Chinese))
[48]	宫凤强，潘俊锋，江权. 岩爆和冲击地压的差异解析及深部工程地质灾害关键机制问题[J]. 工程地质学报，2021，29(4)：933-961. (GONG Fengqiang，PAN Junfeng，JIANG Quan. The difference analysis of rock burst and coal burst and key mechanisms of deep engineering geological hazards[J]. Journal of Engineering Geology，29(4)：933-961.(in Chinese))
[3]	齐庆新，潘一山，李海涛，等. 煤矿深部开采煤岩动力灾害防控理论基础与关键技术[J]. 煤炭学报，2020，45(5)：1 567-1 584.(QI Qingxin，PAN Yishan，LI Haitao，et al. Theoretical basis and key technology of prevention and control of coal-rockdynamic disasters in deep coal mining[J]. Journal of China Coal Society，2020，45(5)：1 567-1 584.(in Chinese))
[4]	姜耀东，潘一山，姜福兴，等. 我国煤炭开采中的冲击地压机制和防治[J]. 煤炭学报，2014，39(2)：205-213.(JIANG Yaodong，PAN Yishan，JIANG Fuxing，et al. State of the art review on mechanism and prevention of coal bumps in China[J]. Journal of China Coal Society，2014，39(2)：205-213.(in Chinese))
[11]	中华人民共和国国家标准编写组. GB/T25217. 1—2010冲击地压测定、监测与防治方法第1部分：顶板岩层冲击倾向性分类及指数的测定方法[S]. 北京：国家煤炭工业局行业管理司，2010.(The National Standards Compilation Group of People?s Republic of China. GB/T25217.1—2010 Methods for test，monitoring and prevention of rock burst-Part 1：Classification and laboratory test method on bursting liability of rock[S]. Beijing：State Administration of Coal Industry，2010.(in Chinese))
[13]	ZHANG J，FU B，LI Z，et al. Criterion and classification for strain mode rockbursts based on five-factor comprehensive method[C]// Harmonising Rock Engineering and the Environment. Boca Raton：CRC Press，2011：562-563.
[14]	陈岩，郭保华. 屈服度与冲击性指标BIM关系的试验研究[J]. 地下空间与工程学报，2013，9(增1)：1 507-1 510.(CHEN Yan，GUO Baohua. Experimental study on the relationship between yield degree and BIM[J]. Chinese Journal of Underground Space and Engineering，2013，9(Supp.1)：1 507-1 510.(in Chinese))
[23]	WANG J A，PARK H D. Comprehensive prediction of rockburst based on analysis of strain energy in rocks[J]. Tunnelling and Underground Space Technology，2001，16(1)：49-57.
[24]	AUBERTIN M，GILL D E，SIMON R. On the use of the brittleness index modified (BIM) to estimate the post-peak behavior of rocks，rock mechanics[J]. Aqua Fennica，1994，12(10)：945-952.
[9]	丁鑫，肖晓春，潘一山，等. 煤岩本构关系与冲击倾向指标的力学分析[J]. 地下空间与工程学报，2020，16(5)：1 371-1 382.(DING Xin，XIAO Xiaochun，PAN Yishan，et al. Coal constitutive relation and mechanical analysis of its impact tendency index[J]. Chinese Journal of Underground Space and Engineering，2020，16(5)：1 371-1 382.(in Chinese))
[19]	郭然，于润沧. 新建有岩爆倾向硬岩矿床采矿技术研究工作程序[J]. 中国工程科学，2002，4(7)：51-55.(GUO Ran，YU Runcang. Working procedure of developing a new deep hard-rock burst-prone deposit[J]. Engineering Science，2002，4(7)：51-55.(in Chinese))
[29]	陈光波，李谭，杨磊，等. 不同煤岩比例及组合方式的组合体力学特性及破坏机制[J]. 采矿与岩层控制工程学报，2021，3(2)：84-94.(CHEN Guangbo，LI Tan，YANG Lei，et al. Mechanical properties and failure mechanism of combined bodies with different coal-rock ratios and combinations[J]. Journal of Mining and Strata Control Engineering，2021，3(2)：84-94.(in Chinese))
[31]	陈光波，秦忠诚，张国华，等. 受载煤岩组合体破坏前能量分布规律[J]. 岩土力学，2020，41(6)：2 021-2 033.(CHEN Guangbo，QIN Zhongcheng，ZHANG Guohua，et al. Law of energy distribution before failure of a loaded coal-rock combined body[J]. Rock and Soil Mechanics，2020，41(6)：2 021-2 033.(in Chinese))
[33]	齐庆新，彭永伟，李宏艳，等. 煤岩冲击倾向性研究[J]. 岩石力学与工程学报，2011，30(增1)：2 736-2 742.(QI Qingxin，PENG Yongwei，LI Hongyan，et al. Study of bursting liability of coal and rock[J]. Chinese Journal of Rock Mechanics and Engineering，2011，30(Supp. 1)：2 736-2 742.(in Chinese))
[34]	李纪青，齐庆新，毛德兵，等. 应用煤岩组合模型方法评价煤岩冲击倾向性探讨[J]. 岩石力学与工程学报，2005，24(增1)：209-214. (LI Jiqing，QI Qingxin，MAO Debing，et al. Discussion on evaluation method of bursting liability with composite model of coal and rock[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(Supp.1)：209-214.(in Chinese))
[39]	肖晓春，金晨，赵鑫，等. 组合煤岩冲击倾向电荷判据试验研究[J]. 岩土力学，2017，38(6)：1 620-1 628.(XIAO Xiaochun，JIN Chen，ZHAO Xin，et al. Experimental study on the charge criterion of coal-rock bodies burst tendency[J]. Rock and Soil Mechanics，2017，38(6)：1 620-1 628.(in Chinese))
[41]	左建平，谢和平，孟冰冰，等. 煤岩组合体分级加卸载特性的试验研究[J]. 岩土力学，2011，32(5)：1 287-1 296.(ZUO Jianping，XIE Heping，MENG Bingbing，et al. Experimental research on loading-unloading behavior of coal-rock combination bodies at different stress levels[J]. Rock and Soil Mechanics，2011，32(5)：1 287-1 296.(in Chinese))
[43]	尹大伟，陈绍杰，邢文彬，等. 不同加载速率下顶板-煤柱结构体力学行为试验研究[J]. 煤炭学报，2018，43(5)：1 249-1 257.(YIN Dawei，CHEN Shaojie，XING Wenbin，et al. Experimental study on mechanical behavior of roof-coal pillar structure body under different loading rates[J]. Journal of China Coal Society，2018，43(5)：1 249-1 257.(in Chinese))
[44]	中华人民共和国国家标准编写组. GB/T50266－99工程岩体试验方法标准[S]. 北京：中国计划出版社，1999.(The National Standards Compilation Group of the People’s Republic of China. GB/T50266－99 Standard for test methods of engineering rock mass[S]. Beijing：China Planning Press，1999.(in Chinese))
[7]	BOLER F M，BILLINGTON S，ZIPF P K. Seismological and energy balance constraints on the mechanism of a catastrophic bump in the cliffs coal mining district，Utah，USA[J]. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts，1997，34(1)：27-43.
[15]	RICHARD S. Analysis of fault-slip mechanisms in hard rock mining[Ph. D. Thesis][D]. Montreal：McGill University，1999.
[17]	李庶林，冯夏庭，王泳嘉，等. 深井硬岩岩爆倾向性评价[J]. 东北大学学报，2001，22(1)：60-63.(LI Shulin，FENG Xiating，WANG Yongjia，et al. Evaluation of rock burst proneness in a deep hard rock mine[J]. Journal of Northeastern University：Natural Science，2001，22(1)：60-63.(in Chinese))
[25]	SINGH S P. Burst energy release index[J]. Rock Mechanics and Rock Engineering，1988，21(2)：149-155.
[27]	唐礼忠，潘长良，王文星. 用于分析岩爆倾向性的剩余能量指数[J]. 中南工业大学学报：自然科学版，2002，33(2)：129-132.(TANG Lizhong，PAN Changliang，WANG Wenxing. Surplus energy index for analysing rock burst proneness[J]. Journal of Central South University of Technology：Science and Technology，2002，33(2)：129-132.(in Chinese))
[35]	陆菜平. 组合煤岩的强度弱化减冲原理及其应用[博士学位论文][D]. 北京：中国矿业大学，2008.(LU Caiping. Intensity weakening theory for rockburst of compound coal-rock and its application[Ph. D. Thesis][D]. Beijing：China University of Mining and Technology，2008.(in Chinese))
[37]	刘波，杨仁树，郭东明，等. 孙村煤矿－1100 m水平深部煤岩冲击倾向性组合试验研究[J]. 岩石力学与工程学报，2004，23(14)：2 402-2 408.(LIU Bo，YANG Renshu，GUO Dongming，et al. Burst-prone experiments of coal-rock combination at －1 100 m level in suncun coal mine[J]. Chinese Journal of Rock Mechanics and Engineering，2004，23(14)：2 402-2 408.(in Chinese))
[45]	王宝学，杨同，周磊. 岩石力学实验指导书(修订版)[M]. 北京：北京科技大学出版社，2008：18-21.(WANG Baoxue，YANG Tong，ZHOU Lei. Experimental instruction of rock mechanics(revised version)[M]. Beijing：Beijing University of Science and Technology Press，2008：18-21.(in Chinese))
[47]	GONG F Q，WANG Y L，WANG Z G，et al. A new criterion of coal burst proneness based on the residual elastic energy index[J]. International Journal of Mining Science and Technology，2021，31(4)：553-563.
[2]	潘一山，代连朋，李国臻，等. 煤矿冲击地压与冒顶复合灾害研究[J]. 煤炭学报，2021，46(1)：112-122.(PAN Yishan，DAI Lianpeng，LI Guozhen，et al. Study on compound disaster of rock burst and roof falling in coal mines[J]. Journal of China Coal Society，2021，46(1)：112-122.(in Chinese))
[18]	WU Y，ZHANG W. Evaluation of the bursting proneness of coal by means of its failure duration[M]. Rotterdam：A. A. Balkema，1997：285-288.
[28]	唐礼忠，王文星. 一种新的岩爆倾向性指标[J]. 岩石力学与工程学报，2002，21(6)：874-878.(TANG Lizhong，WANG Wenxing. New rock burst proneness index[J]. Chinese Journal of Rock Mechanics and Engineering，2002，21(6)：874-878.(in Chinese))
[5]	姜耀东，赵毅鑫. 我国煤矿冲击地压的研究现状：机制、预警与控制[J]. 岩石力学与工程学报，2015，34(11)：2 188-2 204.(JIANG Yaodong，ZHAO Yixin. State of the art：investigation on mechanism，forecast and control of coal bumps in China[J]. Chinese Journal of Rock Mechanics and Engineering，2015，34(11)：2 188-2 204.(in Chinese))
[8]	卢志国，鞠文君，高富强，等. 基于非线性储能与释放特征的煤冲击倾向性指标[J]. 岩石力学与工程学报，2021，40(8)：1 559-1 569. (LU Zhiguo，JU Wenjun，GAO Fuqiang，et al. Bursting liability index of coal based on nonlinear storage and release characteristics of elastic energy[J]. Chinese Journal of Rock Mechanics and Engineering，2021，40(8)：1 559-1 569.(in Chinese))
[10]	张志镇，高峰，林斌，等. 岩石冲击倾向与其波速变化的相关性研究[J]. 岩石力学与工程学报，2012，31(增2)：3 527-3 532. (ZHANG Zhizhen，GAO Feng，LIN Bin，et al. Correlation study of rock burst tendency and ultrasonic velocity[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(Supp.2)：3 527-3 532.(in Chinese))
[12]	中华人民共和国国家标准编写组. GB/T25217.1—2010冲击地压测定、监测与防治方法第2部分：煤的冲击倾向性分类及指数的测定方法[S]. 北京：国家煤炭工业局行业管理司，2010.(The National Standards Compilation Group of People´s Republic of China. GB/T25217.1—2010 Methods for test，monitoring and prevention of rock burst-Part 2：Classification and laboratory test method on bursting liability of coal[S]. Beijing：State Administration of Coal Industry，2010.(in Chinese))
[20]	潘一山，耿琳，李忠华. 煤层冲击倾向性与危险性评价指标研究[J]. 煤炭学报，2010，35(12)：1 975-1 978.(PAN Yishan，GENG Lin，LI Zhonghua. Research on evaluation indices for impact tendency and danger of coal seam[J]. Journal of China Coal Society，2010，35(12)：1 975-1 978.(in Chinese))
[22]	宫凤强，闫景一，李夕兵. 基于线性储能规律和剩余弹性能指数的岩爆倾向性判据[J]. 岩石力学与工程学报，2018，37(9)：1 993-2 014. (GONG Fengqiang，YAN Jingyi，LI Xibing，et al. A new criterion of rock burst proneness based on the linear energy storage law and the residual elastic energy index[J]. Chinese Journal of Rock Mechanics and Engineering，2018，37(9)：1 993-2 014.(in Chinese))
[30]	陈光波，李谭，张国华，等. 煤岩组合体破坏前能量积聚规律试验研究[J]. 煤炭学报，2021，46(增1)：174-186.(CHEN Guangbo，LI Tan，ZHANG Guohua，et al. Experimental study on the law of energy accumulation before failure of coal-rock combined body[J]. Journal of China Coal Society，2021，46(Supp. 1)：174-186.(in Chinese))
[32]	齐庆新，史元伟，刘天泉. 冲击地压粘滑失稳机制的实验研究[J]. 煤炭学报，1997，22(2)：34-38.(QI Qingxin，SHI Yuanwei，LIU Tianquan. Mechanism of instability caused by viscous sliding in rock burst[J]. Journal of China Coal Society，1997，22(2)：34-38.(in Chinese))
[38]	牟宗龙，王浩，彭蓬，等. 岩-煤-岩组合体破坏特征及冲击倾向性试验研究[J]. 采矿与安全工程学报，2013，30(6)：841-847. (MU Zonglong，WANG Hao，PENG Peng，et al. Experimental research on failure characteristics and bursting liability of rock-coal-rock sample[J]. Journal of Mining and Safety Engineering，2013，30(6)：841-847.(in Chinese))
[40]	中华人民共和国国家标准编写组. GB/T25217.3—2019冲击地压测定、监测与防治方法第3部分：煤岩组合试件冲击倾向性分类及指数的测定方法[S]. 北京：国家煤炭工业局行业管理司，2019.(The National Standards Compilation Group of People?s Republic of China. GB/T25217.3—2019 Methods for test，monitoring and prevention of rock burst-Part 3：Classification and laboratory test method on bursting liability of coal[S]. Beijing：State Administration of Coal Industry，2019.(in Chinese))