热–水–力耦合条件下深部砂岩冲击动力学特性试验研究

doi:10.13722/j.cnki.jrme.2020.0205

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摘要为探究“三高一扰动”特殊环境下切顶卸压无煤柱自成巷顶板砂岩切缝的动态力学性能，利用自主设计的岩土体动态冲击力学试验系统，对粉砂岩进行不同热–水–力耦合条件下的冲击压缩试验，研究动态应力–应变特征、动变形模量与加载率关系、以及加载率、轴压、围压、渗透水压、温度、吸收能与峰值应力和峰值应变的动态力学性能，利用扫描电镜(Scanning Electron Microscopy，SEM)研究粉砂岩试样断口面微观结构。研究结果表明：(1) 在不同的动荷载作用下，粉砂岩试样的峰值应力和峰值应变均随轴压、围压、渗透水压、温度的升高而不断增大，脆性逐渐减弱而延性逐渐增强，变形破坏总体分为压密、弹性变形、塑性变形和破坏4个阶段；(2) 动变形模量随着加载率的增大呈现出先增大后减小的发展趋势，动变形模量136 GPa左右为一个临界阈值；(3) 轴压、围压、水和温度对砂岩在热–水–力耦合特定环境下的动态冲击力学性能具有一定的增强效应；(4) 随着峰值应变的增加，粉砂岩试样的吸收能呈线性增加趋势，其破碎变形与吸收能呈正相关。

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	邹宝平1
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	罗战友1
	徐付军3
	丁浩楠1
	陶志刚2
	何满潮2

关键词 ：岩石力学；深部砂岩；热&ndash, 水&ndash, 力耦合；动态冲击；无煤柱自成巷；温度；渗透水压；围压

Abstract：In order to appropriately understand the dynamic mechanical behavior of sandstone sampled by roof cutting non-pillar mining method in deep coal mines under some special conditions including high geo-temperature，high hydraulic pressure and high ground stress，the impact compression test under thermal- hydraulic-mechanical coupling condition is carried out using a self-developed triaxial dynamic impact mechanics testing system. The dynamic stress-strain characteristics and the correlation between the dynamic deformation modulus and the loading rate，as well as the dependence of the peak stress/strain on the loading rate，the axial and confining pressures，the hydraulic pressure，the temperature and the absorption energy， are investigated，and the micromorphology of sandstone fractures after testing is examined by scanning electron microscopy(SEM). The results reveal that both the peak stress and the peak strain of siltstone proportionally increase with increasing the axial pressure，the confining pressure，the hydraulic pressure and temperature，accompanied a tendency from brittleness to ductility，and that the deformation process siltstone can be divided into four stages including compaction deformation，elastic deformation，plastic deformation and failure. With increasing the loading rate，the dynamic deformation modulus gradually increases and then decreases with a critical value of 136 GPa. It is also found that the axial and confining pressures，the hydraulic pressure and the temperature have significant enhancement effect on the mechanical properties of sandstone under dynamic loading. Moreover，the absorption energy of siltstone increases linearly with increasing the peak strain，and the crushing deformation is proportionally correlated with the absorption energy.

Key words： rock mechanics deep sandstone thermal-hydraulic-mechanical coupling dynamic impact non-pillar mining temperature hydraulic pressure confining pressure

引用本文:

邹宝平1，2，罗战友1，徐付军3，丁浩楠1，陶志刚2，何满潮2. 热–水–力耦合条件下深部砂岩冲击动力学特性试验研究[J]. 岩石力学与工程学报, 2020, 39(9): 1750-1761.
ZOU Baoping1，2，LUO Zhanyou1，XU Fujun3，DING Haonan1，TAO Zhigang2，HE Manchao2. Experimental study on impact dynamic characteristics of deep sandstone under thermal-hydraulic-mechanical coupling conditions. , 2020, 39(9): 1750-1761.

链接本文:

http://rockmech.whrsm.ac.cn/CN/10.13722/j.cnki.jrme.2020.0205 或 http://rockmech.whrsm.ac.cn/CN/Y2020/V39/I9/1750

[32]	陈菲，何川，邓建辉. 高地应力定义及其定性定量判据[J]. 岩土力学，2015，36(4)：971-980.(CHEN Fei，HE Chuan，DENG Jianhui. Concept of high geostress and its qualitative and quantitative definitions[J]. Rock and Soil Mechanics，2015，36(4)：971-980.(in Chinese))
[3]	何满潮，宋振骥，王安，等. 长壁开采切顶短壁梁理论及其110工法——第三次矿业科学技术变革[J]. 煤炭科技，2017，(1)：1-9.(HE Manchao，SONG Zhenqi，WANG An，et al. Theory of longwall mining by using roof cuting shortwall team and 110 method—the third mining science and technology reform[J]. Coal Science and Technology Magazine，2017，(1)：1-9.(in Chinese))
[12]	顾超，许金余，孟博旭，等. 高温作用后2种层理砂岩的动态力学试验及细观分析[J]. 煤炭学报，2019，44(9)：2 710-2 720. (GU Chao，XU Jinyu，MENG Boxu，et al. Dynamic mechanical behavior and mesoscopic analysis of two layered sandstone after high temperature[J]. Journal of China Coal Society，2019，44(9)：2 710- 2 720.(in Chinese))
[21]	武仁杰，李海波. SHPB 冲击作用下层状千枚岩多尺度破坏机制研究[J]. 爆炸与冲击，2019，39(8)：105-114.(WU Renjie，LI Haibo. Multi-scale failure mechanism analysis of layered phyllitesubject to impact loading[J]. Explosion and Shock Waves，2019，39(8)：105-114. (in Chinese))
[27]	SELYUTINA N S，PETROV Y V. Fracture of saturated concrete and rocks under dynamic loading[J]. Engineering Fracture Mechanics，2020，DOI：10.1016/j.engfracmech.2018.11.052.
[30]	陆银龙，王连国，唐芙蓉，等. 煤炭地下气化过程中温度-应力耦合作用下燃空区覆岩裂隙演化规律[J]. 煤炭学报，2012，37(8)：1 292-1 298.(LU Yinlong，WANG Lianguo，TANG Furong，et al. Fracture evolution of overlying strata over combustion cavity under thermal-mechanical interaction during underground coal gasification[J]. Journal of China Coal Society，2012，37(8)：1 292-1 298.(in Chinese))
[1]	何满潮，谢和平，彭苏萍，等. 深部开采岩体力学研究[J]. 岩石力学与工程学报，2005，24(16)：2 803-2 813.(HE Manchao，XIE Heping，PENG Suping，et al. Study on rock mechanics in deep mining engineering[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(16)：2 803-2 813.(in Chinese))
[10]	石恒，王志亮，李鸿儒. 实时温度下中细粒花岗岩动力响应与吸能特性试验研究[J]. 岩石力学与工程学报，2017，36(6)：1 443- 1 451.(SHI Heng，WANG Zhiliang，LI Hongru. Experimental study on dynamic response and energy-absorbing property of medium-fine grained granite under actual temperature[J]. Chinese Journal of Rock Mechanics and Engineering，2017，36(6)：1 443-1 451.(in Chinese))
[19]	LI M，LIN G，ZHOU W，et al. Experimental study on dynamic tensile failure of sandstone specimens with different water contents[J]. Shock and Vibration，2019，DOI：10.1155/2019/7012752.
[28]	WANG H Y，DYSKIN A，DIGHT P，et al. Review of unloading tests of dynamic rock failure in compression[J]. Engineering Fracture Mechanics，2020，DOI：10.1016/j.engfracmech.2018.12.022.
[2]	王亚军，何满潮，张科学，等. 无煤柱自成巷开采巷道矿压显现特征及控制对策[J]. 采矿与安全工程学报，2018，35(4)：677-685.(WANG Yajun，HE Manchao，ZHANG Kexue，et al. Strata behavior characteristics and control countermeasures for the gateroad surroundings in innovative non-pillar mining method with gateroad formed automatically[J]. Journal of Mining and Safety Engineering，2018，35(4)：677-685.(in Chinese))
[4]	何满潮，高玉兵，杨军，等. 无煤柱自成巷聚能切缝技术及其对围岩应力演化的影响研究[J]. 岩石力学与工程学报，2017，36(6)：1 314-1 325.(HE Manchao，GAO Yubing，YANG Jun，et al. An energy-gathered roof cutting technique in no-pillar mining and its impact on stress variation in surrounding rocks[J]. Chinese Journal of Rock Mechanics and Engineering，2017，36(6)：1 314-1 325.(in Chinese))
[6]	高玉兵，杨军，张星宇，等. 深井高应力巷道定向拉张爆破切顶卸压围岩控制技术研究[J]. 岩石力学与工程学报，2019，38(10)：2 045-2 056.(GAO Yubing，YANG Jun，ZHANG Xingyu，et al. Study on surrounding rock control of roadways in deep coal mines based on roof cutting and pressure release technology by directional tensile blasting[J]. Chinese Journal of Rock Mechanics and Engineering，2019，38(10)：2 045-2 056.(in Chinese))
[8]	陈上元，赵菲，王洪建，等. 深部切顶沿空成巷关键参数研究及工程应用[J]. 岩土力学，2019，40(1)：332-342.(CHEN Shangyuan，ZHAO Fei，WANG Hongjian，et al. Determination of key parameters of gob-side entry retaining by cutting roof and its application to a deep mine[J]. Rock and Soil Mechanics，2019，40(1)：332-342.(in Chinese))
[11]	吴明静，平琦，张号. 高温状态下加载速率对砂岩动态力学特性影响的实验研究[J]. 科学技术与工程，2018，18(24)：281-287.(WU Mingjing，PING Qi，ZHANG Hao. Experimental study of effects of loading rates on sandstone dynamic mechanical properties at high temperature[J]. Science Technology and Engineering，2018，18(24)：281-287.(in Chinese))
[5]	何满潮，郭鹏飞，张晓虎，等. 基于双向聚能拉张爆破理论的巷道顶板定向预裂[J]. 爆炸与冲击，2018，38(4)：795-803.(HE Manchao，GUO Pengfei，ZHANG Xiaohu，et al. Directional pre-splitting of roadway roof based on the theory of bilateral cumulative tensile explosion[J]. Explosion and Shock Waves，2018，38(4)：795-803.(in Chinese))
[7]	马新根，何满潮，李钊，等. 复合顶板无煤柱自成巷切顶爆破设计关键参数研究[J]. 中国矿业大学学报，2019，48(2)：236-246. (MA Xingen，HE Manchao，LI Zhao，et al. Key parameters of gob-side entry retaining automatically formed by roof cutting and blasting in compound roof condition[J]. Journal of China University of Mining and Technology，2019，48(2)：236-246. (in Chinese))
[9]	高龙山，徐颖，吴帮标，等. 温度损伤大理岩不同含水条件下的动态压缩特性研究[J]. 岩石力学与工程学报，2018，37(增2)：3 826-3 833.(GAO Longshan，XU Ying，WU Bangbiao，et al. Dynamic compression strength of thermal damaged Fangshan marble on dry and saturated conditions[J]. Chinese Journal of Rock Mechanics and Engineering，2018，37(Supp.2)：3 826-3 833.(in Chinese))
[14]	宫凤强，李夕兵，刘希灵，等. 一维动静组合加载下砂岩动力学特性的试验研究[J]. 岩石力学与工程学报，2010，29(10)：2 076-2 085. (GONG Fengqiang，LI Xibing，LIU Xiling，et al. Experimental study of dynamic characteristics of sandstone under one-dimensional coupled static and dynamic loads[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(10)：2 076-2 085.(in Chinese))
[16]	唐礼忠，刘涛，王春，等. 动力荷载对围压卸载下岩石动态变形模量的影响[J]. 爆炸与冲击，2018，38(6)：1 353-1 363. (TANG Lizhong，LIU Tao，WANG Chun，et al. Study on dynamic deformation modulus of rock under confining pressure unloading and dynamic loading[J]. Explosion and Shock Waves，2018，38(6)：1 353- 1 363.(in Chinese))
[18]	褚夫蛟，刘敦文，陶明，等. 基于核磁共振的不同含水状态砂岩动态损伤规律[J]. 工程科学学报，2018，40(2)：144-151.(CHU Fujiao，LIU Dunwen，TAO Ming，et al. Dynamic damage laws of sandstone under different water bearing conditions based on nuclear magnetic resonance[J]. Chinese Journal of Engineering，2018，40(2)：144-151.(in Chinese))
[20]	LU A H，HU S C，LI M，et al. Impact of moisture content on the dynamic failure energy dissipation characteristics of sandstone[J]. Shock and Vibration，2019，https：// doi. 10.1155/2019/6078342.
[23]	王兴渝，朱哲明，邱豪，等. 冲击荷载下层理对页岩内裂纹扩展行为影响规律的研究[J]. 岩石力学与工程学报，2019，38(8)： 1 542-1 556.(WANG Xingyu，ZHU Zheming，QIU Hao，et al. Study of the effect of stratifications on crack propagation behaviors in shale under impacting loads[J]. Chinese Journal of Rock Mechanics and Engineering，2019，38(8)：1 542-1 556.(in Chinese))
[25]	王春，程露萍，唐礼忠，等. 高静荷载下卸载速率对岩石动力学特性及破坏模式的影响[J]. 岩石力学与工程学报，2019，38(2)：217-225.(WANG Chun，CHENG Luping，TANG Lizhong，et al. Effects of the unloading rate on dynamic characteristic and failure modes of rock under high static loads[J]. Chinese Journal of Rock Mechanics and Engineering，2019，38(2)：217-225.(in Chinese))
[13]	XU S L，SHAN J F，ZHANG L，et al. Dynamic compression behaviors of concrete under true triaxial confinement：an experimental technique[J]. Mechanics of Materials，2020，DOI：10.1016/j.mechmat.2019.103220.
[15]	宫凤强，李夕兵，刘希灵. 三维动静组合加载下岩石力学特性试验初探[J]. 岩石力学与工程学报，2011，30(6)：1 179-1 190. (GONG Fengqiang，LI Xibing，LIU Xiling. Preliminary experimental study of characteristics of rock subjected to 3D coupled static and dynamic loads[J]. Chinese Journal of Rock Mechanics and Engineering，2011，30(6)：1 179-1 190.(in Chinese))
[17]	闻名，许金余，王鹏，等. 水分与冻融环境下岩石动态拉伸试验及细观分析[J]. 振动与冲击，2017，36(20)：6-11.(WEN Ming，XU Jinyu，WANG Peng，et al. Split tensile tests and mesostructure analyses on red-sandstone under moisture and freeze-thaw conditions[J]. Journal of Vibration and Shock，2017，36(20)：6-11.(in Chinese))
[22]	杨仁树，李炜煌，方士正，等. 层状复合岩体冲击动力学特性试验研究[J]. 岩石力学与工程学报，2019，38(9)：1 747-1 757. (YANG Renshu，LI Weiyu，FANG Shizheng，et al. Experimental study on impact dynamic characteristics of layered composite rocks[J]. Chinese Journal of Rock Mechanics and Engineering，2019，38(9)：1 747-1 757.(in Chinese))
[24]	王梦想，汪海波，宗琦. 冲击荷载作用下煤矿泥岩能量耗散试验研究[J]. 煤炭学报，2019，44(6)：1 716-1 725.(WANG Mengxiang，WANG Haibo，ZONG Qi. Experimental study on energy dissipation of mudstone in coal mine under impact loading[J]. Journal of China Coal Society，2019，44(6)：1 716-1 725.(in Chinese))
[26]	蔚立元，朱子涵，孟庆彬，等. 循环加卸载损伤大理岩的动力学特性[J]. 爆炸与冲击，2019，39(8)：60-70.(YU Liyuan，ZHU Zihan，MENG Qingbin，et al. Dynamic characteristics of marble damaged by cyclic loading[J]. Explosion and Shock Waves，2019，39(8)：60-70.(in Chinese))
[31]	周子龙，蔡鑫，周静，等. 不同加载率下水饱和砂岩的力学特性研究[J]. 岩石力学与工程学报，2018，37(增2)：4 069-4 075. (ZHOU Zilong，CAI Xin，ZHOU Jing，et al. Mechanical properties of saturated sandstone under different loading rates[J]. Chinese Journal of Rock Mechanics and Engineering，2018，37(Supp.2)：4 069-4 075.(in Chinese))
[29]	代仁平，郭学彬，宫全美，等. 隧道围岩爆破损伤防护的霍普金森压杆试验[J]. 岩土力学，2011，32(1)：77-83.(DAI Renping，GUO Xuebin，GONG Quanmei，et al. SHPB test on blasting damage protection of tunnel surrounding rock[J]. Rock and Soil Mechanics，2011，32(1)：77-83.(in Chinese))