岩石高温高压两刚一柔型真三轴时效力学试验系统研制与应用

doi:10.13722/j.cnki.jrme.2021.0151

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摘要为研究深部地下工程岩体在高温高压条件下开挖响应问题，自主研制岩石高温高压两刚一柔型真三轴时效力学试验系统。该系统主要包括用于施加最大主应力()和中间主应力()的刚性应力加载系统，施加最小主应力()的柔性应力加载系统，温度伺服控制系统及可扩展部分；在和方向上刚性加载力最高2 000 kN，方向柔性加载的最大压力为70 MPa。该系统设计采用50 mm×50 mm×100 mm的标准岩石试样，可在最高250 ℃的长时高温下进行真三轴、蠕变以及循环加卸载等多种应力路径试验。应用该系统研究高温(60 ℃，100 ℃，150 ℃，200 ℃)高压(= 30 MPa，= 20 MPa)条件下北山花岗岩强度与变形特征、高温条件下锦屏大理岩真三轴蠕变行为。结果表明，北山花岗岩峰值强度和弹性模量随温度升高而呈现出先增大后减小的趋势，转折点出现在150 ℃。锦屏大理岩80 ℃下真三轴蠕变曲线可明显观察到衰减蠕变、稳定蠕变和加速蠕变过程。该系统为认知高温高压下岩石真三轴力学特性提供了一种新的有效手段。

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	刘造保1
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	王川1
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	周宏源1
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	沈挽青1
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	邵建富1
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关键词 ：岩石力学, 真三轴试验, 高温高压耦合, 变形破坏, 岩石蠕变

Abstract：In order to study the excavation response of deep underground engineering rock masses under high temperature and high-pressure conditions，a true triaxial rheological test system of the“two rigid and one flexible” type was independently developed for carrying out experiments on rocks under high temperature and high pressure. The system mainly includes two rigid stress loading components respectively for applying maximum principal stress() and intermediate principal stress()，a flexible stress loading system for applying minimum principal stress()，a temperature servo control system and some extensible parts. The rigid loading force in the directions of and is up to 2 000 kN and the maximum pressure of the flexible loading in the direction is 70 MPa. The system is designed for a standard rock sample with three edges respectively of 50 mm×50 mm×100 mm，and can perform various types of high-temperature stress loading tests such as true triaxial，creep，and cyclic loading and unloading. The system was used to study the strength and deformation characteristics of Beishan granite under high temperature(60 ℃，100 ℃，150 ℃，200 ℃) and high pressure(= 30 MPa，= 20 MPa) true triaxial loading conditions，and the true triaxial creep behaviour of Jinping marble under high-temperature conditions. The results show that the peak strength and elastic modulus of Beishan granite first increase and then decrease with increasing temperature，and the turning point appears at 150 ℃. The true triaxial creep curve of Jinping marble at 80 ℃ obviously exhibits the attenuation creep，stable creep and accelerated creep process. The system provides a new effective method for characterization of the true triaxial mechanical properties of rocks under coupled high temperature and high-pressure condition.

Key words： rock mechanics true triaxial test high-temperature and high-pressure coupling deformation and failure rock creep

引用本文:

刘造保1，2，王川1，2，周宏源1，2，沈挽青1，2，邵建富1，2. 岩石高温高压两刚一柔型真三轴时效力学试验系统研制与应用[J]. 岩石力学与工程学报, 2021, 40(12): 2477-2486.
LIU Zaobao1，2，WANG Chuan1，2，ZHOU Hongyuan1，2，SHEN Wanqing1，2，SHAO Jianfu1，2. A true triaxial time-dependent test system with two rigid and one flexible loading frame for rock under real-time high temperature and high#br# pressure and its application. , 2021, 40(12): 2477-2486.

链接本文:

http://rockmech.whrsm.ac.cn/CN/10.13722/j.cnki.jrme.2021.0151 或 http://rockmech.whrsm.ac.cn/CN/Y2021/V40/I12/2477

[4]	MOGI K. Effect of the triaxial stress system on rock failure[J]. Rock Mechanics in Japan，1970，(1)：53-55.
[1]	潘自强，钱七虎. 我国高放废物地质处置战略研究[J]. 中国核电，2013，6(3)：194-196.(PAN Ziqiang，QIAN Qihu. Research on geological disposal strategy of high-level radioactive waste in my country[J]. China Nuclear Power，2013，6(3)：194-196.(in Chinese))
[2]	谢和平，杨仲康，邓建辉. 粤港澳大湾区地热资源潜力评估[J]. 工程科学与技术，2019，51(1)：1-8.(XIE Heping，YANG Zhongkang，DENG Jianhui. Evaluation of geothermal resources potential in the Guangdong-Hong Kong-Macao greater bay area[J]. Engineering Science and Technology，2019，51(1)：1-8.(in Chinese))
[3]	谢和平，高峰，鞠杨. 深部岩体力学研究与探索[J]. 岩石力学与工程学报，2015，34(11)：2 161-2 178.(XIE Heping，GAO Feng，JU Yang. Research and exploration of deep rock mechanics[J]. Chinese Journal of Rock Mechanics and Engineering，2015，34(11)：2 161-2 178.(in Chinese))
[5]	FENG X T，ZHANG X W，KONG R，et al. A novel Mogi type true triaxial testing apparatus and its use to obtain complete stress-strain curves of hard rocks[J]. Rock Mechanics and Rock Engineering，2016，49(5)：1 649-1 662.
[7]	FENG X T，HAIMSON B，LI X C，et al. ISRM suggested method：determining deformation and failure characteristics of rocks subjected to true triaxial compression[J]. Rock Mechanics and Rock Engineering，2019，52(6)：2 011-2 020.
[9]	LI M，YIN G，XU J，et al. A novel true triaxial apparatus to study the geomechanical and fluid flow aspects of energy exploitations in geological formations[J]. Rock Mechanics and Rock Engineering，2016，49(12)：4 647-4 659.
[10]	SUN Q，ZHANG W Q，XUE L，et al. Thermal damage pattern and thresholds of granite[J]. Environmental Earth Sciences，2015，74(3)：2 341-2 349.
[12]	YAO M D，RONG G，ZHOU C B，et al. Effects of thermal damage and confining pressure on the mechanical properties of coarse marble[J]. Rock Mechanics and Rock Engineering，2016，49(6)：2 043-2 054.
[6]	FENG X T，ZHAO J，ZHANG X W，et al. A novel true triaxial apparatus for studying the time-dependent behaviour of hard rocks under high stress[J]. Rock Mechanics and Rock Engineering，2018，51(9)：2 653-2 667.
[17]	FRASH L P，GUTIERREZ M. Development of a new temperature controlled true-triaxial apparatus for simulating enhanced geothermal systems(EGS) at the laboratory scale[C]// 37th Workshop on Geothermal Reservoir Engineering. Stanford，USA：Stanford University，2012：SGP-TR-194.
[8]	INGRAHAM M，ISSEN K，HOLCOMB D. Response of Castlegate sandstone to true triaxial states of stress[J]. Journal of Geophysical Research：Solid Earth，2013，118(2)：536-552.
[14]	YE G L，NISHIMURA T，ZHANG F. Experimental study on shear and creep behaviour of green tuff at high temperatures[J]. International Journal of Rock Mechanics and Mining Sciences，2015，79：19-28.
[16]	赵阳升，万志军，张渊，等. 20 MN伺服控制高温高压岩体三轴试验机的研制[J]. 岩石力学与工程学报，2008，25(1)：1-8. (ZHAO Yangshang，WAN Zhijun，ZHANG Yuan，et al. Research and development of 20 MN servo-controlled rock triaxial testing system with high temperature and high pressure[J]. Chinese Journal of Rock Mechanics and Engineering，2008，25(1)：1-8.(in Chinese))
[18]	马啸，马东东，胡大伟，等. 实时高温真三轴试验系统的研制与应用[J]. 岩石力学与工程学报，2019，38(8)：1 605-1 614. (MA Xiao，MA Dongdong，HU Dawei，et al. A real-time high- temperature true triaxial test system and its application[J]. Chinese Journal of Rock Mechanics and Engineering，2019，38(8)：1 605- 1 614.(in Chinese))
[19]	MA X，WANG G，HU D，et al. Mechanical properties of granite under real-time high temperature and three-dimensional stress[J]. International Journal of Rock Mechanics and Mining Sciences，2020，136：104521.
[21]	NASSERI M，GOODFELLOW S，LOMBOS L，et al. 3-D transport and acoustic properties of Fontainebleau sandstone during true-triaxial deformation experiments[J]. International Journal of Rock Mechanics and Mining Sciences，2014：69：1-18.
[11]	MASRI M，SIBAI M，SHAO J F，et al. Experimental investigation of the effect of temperature on the mechanical behavior of Tournemire shale[J]. International Journal of Rock Mechanics and Mining Sciences，2014，70：185-191.
[13]	AKDAG S，KARAKUS M，TAHERI A，et al. Effects of thermal damage on strain burst mechanism for brittle rocks under true-triaxial loading conditions[J]. Rock Mechanics and Rock Engineering，2018，51(6)：1 657-1 682.
[15]	许江，彭守建，尹光志，等. 含瓦斯煤热流固耦合三轴伺服渗流装置的研制及应用[J]. 岩石力学与工程学报，2010，29(5)：907-914.(XU Jiang，PENG Shoujian，YIN Guangzhi，et al. Development and application of triaxial servo-controlled seepage equipment for thermo-fluid-solid coupling of coal containing methane[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(5)：907-914.(in Chinese))
[20]	张帆，唐永生，刘造保，等. COx黏土岩三轴压缩蠕变特性及速率阈值试验研究[J]. 岩石力学与工程学报，2017，36(3)：644-649.(ZHANG Fan，TANG Yongsheng，LIU Zaobao，et al. Experimental study on creep characteristics and rate threshold of COx clay rock under triaxial compression[J]. Chinese Journal of Rock Mechanics and Engineering，2017，36(3)：644-649.(in Chinese))
[22]	WONG L N Y，ZHANG Y，WU Z. Rock strengthening or weakening upon heating in the mild temperature range?[J]. Engineering Geology，2020，272：105619.