基于能量释放率的不同赋存深度砂岩脆性指数研究

doi:10.13722/j.cnki.jrme.2020.0608

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摘要为建立表征不同赋存深度砂岩脆性指数，以布尔台矿不同赋存深度砂岩试样为研究对象，开展单轴压缩试验，针对不同赋存深度试样应力–应变曲线特征，从应力–应变正负相关性出发，构建不同赋存深度试样应力–应变曲线能量演化模型。基于能量释放率，建立满足不同赋存深度试样脆性指数，并进行理论验证。结果表明：不同赋存深度试样对应4种曲线形态，I与IV类曲线位于最浅和最深赋存深度，分别为101.6～203.2和509.8～589.3 m，II类曲线分布于各个深度，III类曲线分布主要集中于406.4～589.3 m。不同赋存深度下不同曲线形态对应4种能量演化方式，总应变能整体呈“S”型曲线增长，弹性能演化曲线与应力–应变曲线相似，II与III类曲线的耗散能随应变增加呈台阶式增长，IV类曲线耗散能随应变增加呈“L”型增长，其中表面能和释放弹性能两者与塑性能随应变增加交替产生。脆性指数整体上随赋存深度的增加而增大，且与赋存深度呈二次函数关系，对应平均值分别为0.77，1.01，0.93，3.66，9.94，11.55，IV类曲线的最大能量释放率与脆性指数远大于其他3种曲线形态，平均值分别为555.27，30.98。同时，不同赋存深度砂岩脆性分区有较大差异，赋存深度为101.6，317.3 m时，砂岩层为弱脆性；赋存深度为203.24 m时，砂岩层为中脆性；赋存深度为406.42，589.35 m时，砂岩层为强脆性。

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	赵毅鑫1
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	王小良1
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	郭延定3
	郝宪杰1
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关键词 ：岩石力学, 砂岩, 赋存深度, 脆性指数, 能量释放率, 能量演化

Abstract：To establish brittleness index of sandstone at different buried depths，the uniaxial compression test was carried out on the rock samples from different depths in Buertai coal mine. According to the stress-strain curve characteristics of rock samples at different buried depths，an energy evolution model of the stress-strain curve at different buried depths was constructed based on the positive and negative correlation of stress and strain. Based on the energy release rate，the brittleness index of rock samples at different buried depths was established and verified theoretically. The results show that rock samples at different buried depths correspond to four types of curves. Types I and IV curves are located at the shallowest and deepest buried depths，101.6–203.2 m and 509.8–589.3 m respectively. Type II curve is distributed at various depths，and type III curve is mainly distributed at 406.4–589.3 m. Different curve shapes at different depths correspond to four energy evolution models. The total strain energy increases in a“S”shape，and the elastic energy evolution curve is similar to the stress-strain curve. The dissipation energy of types II and III curves increases step by step with increasing the strain，and the dissipation energy of type IV curve increases in a“L” shape with increasing the strain，in which both surface energy and released elastic energy alternate with plastic energy while the strain increases. The brittleness index increases with increasing the buried depth, showing a quadratic function relationship. The corresponding average values are 0.77，1.01，0.93，3.66，9.94 and 11.55 respectively. The maximum energy release rate and brittleness index of type IV curve with average values of 555.27 and 30.98 respectively are much higher than those of the other three curves. In addition，brittleness index partitions of sandstones from different buried depths are quite different. The sandstone layer is weak brittleness when the buried depths are 101.6 m and 317.3 m，medium brittleness for 203.24 m depth and strong brittleness at the buried depths of 406.42 m and 589.35 m.

Key words： rock mechanics sandstone buried depth brittleness index energy release rate energy evolution

引用本文:

赵毅鑫1，2，王小良1，2，郭延定3，郝宪杰1，2. 基于能量释放率的不同赋存深度砂岩脆性指数研究[J]. 岩石力学与工程学报, 2021, 40(2): 248-262.
ZHAO Yixin1，2，WANG Xiaoliang1，2，GUO Yanding3，HAO Xianjie1，2. Brittleness index of sandstones from different buried depths based on energy release rate#br#. , 2021, 40(2): 248-262.

链接本文:

http://rockmech.whrsm.ac.cn/CN/10.13722/j.cnki.jrme.2020.0608 或 http://rockmech.whrsm.ac.cn/CN/Y2021/V40/I2/248

[3]	SINGH S P. Brittleness and the mechanical winning of coal[J]. Mining Science and Technology，1986，3(3)：173-180.
[22]	刘恩龙，沈珠江. 岩土材料的脆性研究[J]. 岩石力学与工程学报，2005，24(19)：329-333.(LIU Enlong，SHEN Zhujiang. Study on brittleness of geomaterials[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(19)：329-333.(in Chinese))
[1]	周家文，杨兴国，符文熹，等. 脆性岩石单轴循环加卸载试验及断裂损伤力学特性研究[J]. 岩石力学与工程学报，2010，29(6)：1 172-1 183.(ZHOU Jiawen，YANG Xingguo，FU Wenxi，et al. Experimental test and fracture damage mechanical characteristics of brittle rock under uniaxial cyclic loading and unloading conditions[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(6)：1 172-1 183. (in Chinese))
[5]	YARALI O，KAHRAMAN S. The drillability assessment of rocks using the different brittleness values[J]. Tunnelling and Underground Space Technology，2011，26(2)：406-414.
[6]	赵金洲，任岚，沈骋，等. 页岩气储层缝网压裂理论与技术研究新进展[J]. 天然气工业，2018，38(3)：1-14.(ZHAO Jinzhou，REN Lan，SHEN Cheng，et al. Latest research progresses in network fracturing theories and technologies for shale gas reservoirs[J]. Natural Gas Industry，2018，38(3)：1-14.(in Chinese))
[9]	ALTINDAG R. Brittleness and drillability Comment on the evaluation of rock brittleness concept on rotary blast drill holes in the Journal of the SAIMM[J]. Journal of the Southern African Institute of Mining and Metallurgy，2003，103(8)：531-541.
[11]	VAUNAT J，LEROUEIL S. Analysis of post-failure slope movements within the framework of hazard and risk analysis[J]. Natural Hazards，2002，26(1)：81-107.
[19]	YAGIZ S. Assessment of brittleness using rock strength and density with punch penetration test[J]. Tunnelling and Underground Space Technology，2009，24(1)：66-74.
[21]	陈吉，肖贤明. 南方古生界3套富有机质页岩矿物组成与脆性分析[J]. 煤炭学报，2013，38(5)：822-826.(CHEN Ji，XIAO Xianming. Mineral composition and brittleness of three sets of paleozoic organic-rich shales in China south area[J]. Journal of China Coal Society，2013，38(5)：822-826.(in Chinese))
[29]	张军，艾池，李玉伟，等. 基于岩石破坏全过程能量演化的脆性评价指数[J]. 岩石力学与工程学报，2017，36(6)：31-45. (ZHANG Jun，AI Chi，LI Yuwei，et al. Brittleness evaluation index based on energy variation in the whole process of rock failure[J]. Chinese Journal of Rock Mechanics and Engineering，2017，36(6)：31-45.(in Chinese))
[31]	LI H G，LI H M. Mechanical properties and acoustic emission characteristics of thick hard roof sandstone in Shendong coal field[J]. International Journal of Coal Science and Technology，2017，4(2)：147-158.
[39]	张志镇，高峰. 单轴压缩下岩石能量演化的非线性特性研究[J]. 岩石力学与工程学报，2012，31(6)：1 198-1 207.(ZHANG Zhizhen，GAO Feng. Research on nonlinear characteristics of rock energy evolution under uniaxial compression[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(6)：1 198-1 207.(in Chinese))
[41]	张传庆，卢景景，陈珺，等. 岩爆倾向性指标及其相互关系探讨[J]. 岩土力学，2017，38(5)：1 397-1 404.(ZHANG Chuanqing，LU Jingjing，CHEN Jun，et al. Discussion on rock burst proneness indexes and their relation[J]. Rock and Soil Mechanics，2017，38(5)：1 397-1 404.(in Chinese))
[7]	刘国军，鲜学福，周军平，等. 页岩受载变形特性及矿物组分对岩石脆性影响实验[J]. 煤炭学报，2016，41(增2)：369-375.(LIU Guojun，XIAN Xuefu，ZHOU Junping，et al. Experimental study the impact of loading deformation characteristics and mineral composition on shale rock brittleness[J]. Journal of China Coal Society，2016，41(Supp.2)：369-375.(in Chinese))
[17]	ALTINDAG R. Evaluation of drill cuttings in prediction of penetration rate by using coarseness index and mean particle size in percussive drilling[J]. Geotechnical and Geological Engineering，2004，22(3)：417-425.
[27]	KIDYBI?SKI A. Bursting liability indices of coal[J]. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts，1981，18(4)：295-304.
[37]	ZHANG Z P，XIE H P，ZHANG R，et al. Deformation damage and energy evolution characteristics of coal at different depths[J]. Rock Mechanics and Rock Engineering，2019，52：1 491-1 503.
[2]	夏英杰，李连崇，唐春安，等. 基于峰后应力跌落速率及能量比的岩体脆性特征评价方法[J]. 岩石力学与工程学报，2016，35(6)：1 141-1 154.(XIA Yingjie，LI Lianchong，TANG Chun'an，et al. Rock brittleness evaluation based on stress dropping rate after peak stress and energy ratio[J]. Chinese Journal of Rock Mechanics and Engineering，2016，35(6)：1 141-1 154.(in Chinese))
[4]	陈国庆，吴家尘，蒋万增，等. 基于弹性能演化全过程的岩石脆性评价方法[J]. 岩石力学与工程学报，2020，39(5)：901-911.(CHEN Guoqing，WU Jiachen，JIANG Wanzeng，et al. An evaluation method of rock brittleness based on the whole process of elastic energy evolution[J]. Chinese Journal of Rock Mechanics and Engineering，2020，39(5)：901-911.(in Chinese))
[10]	ATICI U，ERSOY A. Correlation of specific energy of cutting saws and drilling bits with rock brittleness and destruction energy[J]. Journal of Materials Processing Technology，2009，209(5)：2 602-2 612.
[12]	MARTIN C D. Brittle failure of rock materials: test results and constitutive models[J]. Canadian Geotechnical Journal，1996，33(2)：378-378.
[14]	LAWN B R，MARSHALL D B. Hardness toughness and brittleness：an indentation analysis[J]. Journal of the American Ceramic Society，1979，62(7-8)：347-350.
[20]	JARVIE D M，HILL R J，RUBLE T E，et al. Unconventional shale-gas systems: the mississippian barnett shale of north-central texas as one model for thermogenic shale-gas assessment[J]. AAPG Bulletin，2007，91(4)：475-499.
[24]	李庆辉，陈勉，金衍，等. 页岩脆性的室内评价方法及改进[J]. 岩石力学与工程学报，2012，31(8)：1 680-1 685.(LI Qinghui，CHEN Mian，JIN Yan，et al. Indoor evaluation method for shale brittleness and improvement[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(8)：1 680-1 685.(in Chinese))
[30]	李化敏，李回贵，宋桂军，等. 神东矿区煤系地层岩石物理力学性质[J]. 煤炭学报，2016，41(11)：2 661-2 671.(LI Huamin，LI Huigui，SONG Guijun，et al. Physical and mechanical properties of the coal-bearing strata rock in Shendong coal field[J]. Journal of China Coal Society，2016，41(11)：2 661-2 671.(in Chinese))
[32]	林斌，徐冬. 深部岩石力学参数随赋存深度变化规律研究[J]. 安徽理工大学学报：自然科学版，2017，37(6)：52-59.(LIN Bin，XU Dong. Study on the law of mechanical parameters of rock in deep coal bearing strata[J]. Journal of Anhui University of Science and Technology：Natural Science，2017，37(6)：52-59.(in Chinese))
[34]	EHRENBERG S N，NADEAU P H，STEEN Ø. Petroleum reservoir porosity versus depth：Influence of geological age[J]. AAPG Bulletin，2009，93(10)：1 281-1 296.
[40]	TARASOV B，POTVIN Y. Universal criteria for rock brittleness estimation under triaxial compression[J]. International Journal of Rock Mechanics and Mining Sciences，2013，59：57-69.(in Chinese))
[8]	HUCKA V，DAS B. Brittleness determination of rocks by different methods[J]. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts，1974，11(10)：389-392.
[13]	史贵才，葛修润，卢允德. 脆塑性岩石应力脆性跌落系数的试验研究[J]. 常州工学院学报，2009，22(增1)：1-6.(SHI Guicai，GE Xiurun，LU Yunde. Research on coefficent of brittle stress drop of brittle-plastic rocks[J]. Journal of Changzhou Institute of Technology，2009，22(Supp.1)：1-6.(in Chinese))
[15]	QUINN J B，QUINN G D. Indentation brittleness of ceramics: a fresh approach[J]. Journal of Materials Science，1997，32(16)：4 331-4 346.
[16]	HAJIABDOLMAJID V，KAISER P. Brittleness of rock and stability assessment in hard rock tunneling[J]. Tunnelling and Underground Space Technology Incorporating Trenchless Technology Research，2003，18(1)：35-48.
[18]	ØYVIND D. Prediction of brittle failure for TBM tunnels in anisotropic rock：a case study from northern norway[J]. Rock Mechanics and Rock Engineering，2016，49(6)：2 131-2 153.
[23]	RICKMAN R，MULLEN M，PETRE E，et al. A practical use of shale petrophysics for stimulation design optimization: all shale plays are not clones of the Barnett shale[R]. [S.l.]：SPE 115258，2008.
[25]	周辉，孟凡震，张传庆，等. 基于应力-应变曲线的岩石脆性特征定量评价方法[J]. 岩石力学与工程学报，2014，33(6)：1 114-1 122. (ZHOU Hui，MENG Fanzhen，ZHANG Chuanqing，et al. Quantitative evaluation of rock brittleness based on stress-strain curve[J]. Chinese Journal of Rock Mechanics and Engineering，2014，33(6)：1 114-1 122. (in Chinese))
[26]	DAS B，HUCKA V. Laboratory investigation of penetration properties of the complete coal series[J]. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts，1975，12(7)：213-217.
[28]	TARASOV B G，RANDOLPH M F. Super brittleness of rocks and earthquake activity[J]. International Journal of Rock Mechanics and Mining Sciences，2011，48(6)：888-898.
[33]	满轲，周宏伟. 不同赋存深度岩石的动态断裂韧性与拉伸强度研究[J]. 岩石力学与工程学报，2010，29(8)：1 657-1 663.(MAN Ke，ZHOU Hongwei. Research on dynamic fracture toughness and tensile strength of rock at different depths[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(8)：1 657-1 663.(in Chinese))
[35]	赵毅鑫，刘斌，杨志良，等. 神东矿区不同赋存深度沉积岩抗拉强度与断裂韧度研究[J]. 煤炭学报，2019，44(6)：1 732-1 741. (ZHAO Yixin，LIU Bin，YANG Zhiliang，et al. Tensile strength and fracture toughness of sedimentary rocks at different buried depths in Shendong coal field[J]. Journal of China Coal Society，2019，44(6)：1 732-1 741.(in Chinese))
[36]	周宏伟，谢和平，左建平，等. 赋存深度对岩石力学参数影响的实验研究[J]. 科学通报，2010，55(34)：3 276-3 284.(ZHOU Hongwei，XIE Heping，ZUO Jianping，et al. Experimental study of the effect of depth on mechanical parameters of rock[J]. Chinese Science Bulletin，2010，55(34)：3 276-3 284.(in Chinese))
[38]	赵忠虎，鲁睿，张国庆. 岩石破坏全过程中的能量变化分析[J]. 矿业研究与开发，2006，26(5)：8-11.(ZHAO Zhonghu，LU Rui，ZHANG Guoqing. Analysis on energy transformation for rock in the whole process of deformation and fracture[J]. Mining Research and Development，2006，26(5)：8-11.(in Chinese))