温、湿控制粗粒料大型三轴仪的研制及应用

doi:10.13722/j.cnki.jrme.2020.0945

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摘要为了研究温、湿环境对粗粒料力学特性的影响，研制可以精准控制温度和湿度的粗粒料大型三轴试验仪。该试验仪通过控制压力室水温的方法实现试样的温度控制，通过循环恒湿蒸汽的蒸汽平衡法实现试样的湿度控制。提出一套控制粗粒料温、湿度的三轴试验方法，包括恒温、恒湿养护联合循环恒温、恒湿蒸汽的粗粒料湿度高效控制方法，考虑变温、变压对外体变量测影响的外体变修正方法，以及粗粒料试样温控可靠性的检测方法。利用该仪器对千枚岩粗粒料进行控制温、湿度的三轴剪切及流变试验，并探讨温、湿度对粗粒料力学特性影响的内在机制。结果表明，新研制的试验仪可精准实现粗粒料温、湿度控制，温度及湿度的升高会弱化粗粒料的力学特性。

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	毛航宇1
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	刘斯宏1
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	沈超敏1
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	王柳江1
	2
	初文婷1
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关键词 ：土力学, 粗粒料, 温、湿度控制, 三轴试验, 流变试验

Abstract：To investigate the influence of the temperature and the relative humidity on the mechanical behaviour of coarse granular materials，a large-scale triaxial apparatus，which can accurately control the temperature and the relative humidity of coarse granular materials，was developed. Temperature control was achieved by controlling water temperature in the pressure chamber and relative humidity control was achieved by circulating water vapor in the sample. A set of methods for controlling the temperature and humidity of coarse granule materials in triaxial test were proposed，including the rapid relative humidity control method for coarse granular materials，the method to modify the external volume change measurement considering the influence of varying temperature and confining pressure，and the reliability detection method for sample temperature control. A series of triaxial shear and creep tests by controlling the temperature and the relative humidity were performed for phyllite coarse granular materials，meanwhile the internal mechanism of temperature and humidity effect on the mechanical properties of coarse granular materials was discussed. The results show that the new apparatus can accurately control the temperature and the relative humidity of coarse granular materials and that the increase of the temperature or the relative humidity would weaken the mechanical properties of coarse granular materials.

Key words： soil mechanics')" href="#">

soil mechanics coarse granular materials temperature and relative humidity control triaxial test ')" href="#">creep test

引用本文:

毛航宇1，2，刘斯宏1，2，沈超敏1，2，王柳江1，2，初文婷1，2. 温、湿控制粗粒料大型三轴仪的研制及应用[J]. 岩石力学与工程学报, 2021, 40(6): 1258-1266.
MAO Hangyu1，2，LIU Sihong1，2，SHEN Chaomin1，2，WANG Liujiang1，2，CHU Wenting1，2. Development and application of a temperature-humidity controlled large triaxial apparatus for coarse granular materials. , 2021, 40(6): 1258-1266.

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http://rockmech.whrsm.ac.cn/CN/10.13722/j.cnki.jrme.2020.0945 或 http://rockmech.whrsm.ac.cn/CN/Y2021/V40/I6/1258

[18]	ZHANG B Y，ZHANG J H，SUN G L. Deformation and shear strength of rockfill materials composed of soft siltstones subjected to stress，cyclical drying/wetting and temperature variations[J]. Engineering Geology，2015，190：87-97.
[20]	易洪，李占元，任长青. 饱和盐溶液标准相对湿度表(国际建议)介绍[C]// 第七届全国湿度与水分学术交流会暨第五届气湿敏学术交流会. 南京：[s. n.]，1998：70-72.(YI Hong，LI Zhanyuan，REN Changqing. Introduction of standard relative humidity tables for saturated salt solutions(international recommendations)[C]// The 7th National Humidity and Moisture Academic Exchange Meeting and the 5th Gas and Moisture Sensitive Academic Exchange Meeting. Nanjing：[s. n.]，1998：70-72.(in Chinese))
[1]	王永鑫，邵生俊，王智，等. 真三轴剪切作用下粗粒料卸荷特性的研究[J]. 岩石力学与工程学报，2020，39(7)：1 503-1 512. (WANG Yongxin，SHAO Shengjun，WANG Zhi，et al. Experimental study on the unloading characteristics of coarse aggregate under true triaxial shear loading[J]. Chinese Journal of Rock Mechanics and Engineering，2020，39(7)：1 503-1 512.(in Chinese))
[8]	李广信. 堆石料的湿化试验和数学模型[J]. 岩土工程学报，1990，12(5)：58-64.(LI Guangxin. Study on wetting of rock fill[J]. Chinese Journal of Geotechnical Engineering，1990，12(5)：58-64.(in Chinese))
[11]	张清振，袁会娜，张其光，等. 堆石料干湿循环变形特性试验研究[J]. 水力发电学报，2015，34(12)：33-41.(ZHANG Qingzhen，YUAN Huina，ZHANG Qiguang，et al. Experimental study on deformation characteristics of rock-fill material under cyclic drying-wetting[J]. Journal of Hydraulic Engineering，2015，34(12)： 33-41.(in Chinese))
[3]	孔宪京，宁凡伟，刘京茂，等. 基于超大型三轴仪的堆石料缩尺效应研究[J]. 岩土工程学报，2019，41(2)：255-261.(KONG Xianjing，NING Fanwei，LIU Jingmao，et al. Scale effect of rockfill materials using super large triaxial tests[J]. Chinese Journal of Geotechnical Engineering，2019，41(2)：255-261.(in Chinese))
[10]	沈广军，殷宗泽. 粗粒料浸水变形分析方法的改进[J].岩石力学与工程学报，2009，28(12)：2 437-2 444.(SHEN Guangjun，YIN Zongze. Improvement of wetting deformation analysis method of coarse-grained materials[J]. Chinese Journal of Rock Mechanics and Engineering，2009，28(12)：2 437-2 444.(in Chinese))
[13]	丁艳辉，袁会娜，张丙印. 堆石料非饱和湿化变形特性试验研究[J]. 工程力学，2013，30(9)：139-143.(DING Yanhui，YUAN Huina，ZHANG Bingyin. Unsaturated wetting deformation characteristics of rockfill materials[J]. Engineering Mechanics，2013，30(9)：139-143. (in Chinese))
[6]	ZHANG Y，BUSCARNERA G. Breakage mechanics for granular materials in surface-reactive environments[J]. Journal of the Mechanics and Physics of Solids，2018，112：89-108.
[16]	CHÁVEZ C，ROMERO E，ALONSO E E. A rockfill triaxial cell with suction control[J]. Geotechnical Testing Journal，2009，32(3)：1-13.
[21]	孙德安，何家浩，高游. 广吸力范围内压实红黏土的强度特性[J].岩土力学，2017，38(增2)：51-56.(SUN Dean，HE Jiahao，GAO You. Strength characteristics of compacted lateritic clay in a wide range of suction[J]. Rock and Soil Mechanics，2017，38(Supp.2)：51-56.(in Chinese))
[23]	李雪梅，李红文，方华建. 基于大型直剪试验的粗粒料颗粒破碎对比研究[J]. 岩石力学与工程学报，2015，34(增1)：3 581-3 587.(LI Xuemei，LI Hongwen，FANG Huajian. Comparative study of crushing of coarse-grained soils by large-scale direct shear tests[J]. Chinese Journal of Rock Mechanics and Engineering，2015，34(Supp.1)：3 581-3 587.(in Chinese))
[26]	ZHANG Y D，BUSCARNERA G. A rate-dependent breakage model based on the kinetics of crack growth at the grain scale[J]. Géotechnique，2017，67(11)：953-967.
[28]	曹平，杨慧，江学良，等. 水岩作用下岩石亚临界裂纹的扩展规律[J]. 中南大学学报：自然科学版，2010，41(2)：649-654.(CAO Ping，YANG Hui，JIANG Xueliang，et al. Subcritical crack growth of rock during water-rock interaction[J]. Journal of Central South University：Science and Technology，2010，41(2)：649-654.(in Chinese))
[4]	ALONSO E E，ROMERO E E，ORTEGA E. Yielding of rockfill in relative humidity-controlled triaxial experiments[J]. Acta Geotechnica，2016，11(3)：455-477.
[14]	OLDECOP L A，ALONSO E E. A model for rockfill compressibility[J]. Géotechnique，2001，51(2)：127-139.
[24]	BROEK D. Elementary engineering fracture mechanics[M]. Dordrecht：Martinus Nijhoff，1986：1-540.
[2]	刘斯宏，邵东琛，沈超敏，等. 一个基于细观结构的粗粒料弹塑性本构模型[J]. 岩土工程学报，2017，39(5)：777-783.(LIU Sihong，SHAO Dongchen，SHEN Chaomin，et al. Microstructure-based elastoplastic constitutive model for coarse-grained materials[J]. Chinese Journal of Geotechnical Engineering，2017，39(5)：777-783. (in Chinese))
[5]	王蕴嘉，周梦佳，宋二祥. 考虑颗粒破碎的堆石料湿化变形特性离散元模拟研究[J]. 工程力学，2018，35(增1)：217-222.(WANG Yunjia，ZHOU Mengjia，SONG Erxiang. DEM simulation of wetting deformation characteristics of rockfill considering particle breakage[J]. Engineering Mechanics，2018，35(Supp.l)：217-222.(in Chinese))
[7]	沈珠江. 抗风化设计——未来岩土工程设计的一个重要内容[J].岩土工程学报，2004，26(6)：866-869.(SHEN Zhujiang. Weathering resistant design—An important aspect of future development of geotechnical engineering design[J]. Chinese Journal of Geotechnical Engineering，2004，26(6)：866-869.(in Chinese))
[9]	魏松，朱俊高. 粗粒料三轴湿化颗粒破碎试验研究[J]. 岩石力学与工程学报，2006，25(6)：1 252-1 258.(WEI Song，ZHU Jungao. Study on wetting breakage of coarse-grained materials in triaxial test[J]. Chinese Journal of Rock Mechanics and Engineering，2006，25(6)：1 252-1 258.(in Chinese))
[12]	张丹. 软岩粗粒土的增湿及干湿循环试验研究[硕士学位论文][D]. 北京：清华大学，2007.(ZHANG Dan. Study of moistening and wetting-drying experiment of coarse-grained weak rock[M. S. Thesis][D]. Beijing：Tsinghua University，2006.(in Chinese))
[15]	OLDECOP L A，ALONSO E E. Theoretical investigation of the time-dependent behaviour of rockfill[J]. Géotechnique，2007，57(3)：289-301.
[17]	石北啸，蔡正银，陈生水. 温度变化对堆石料变形影响的试验研究[J]. 岩土工程学报，2016，38(增2)：299-305.(SHI Beixiao，CAI Zhengyin，CHEN Shengshui. Experiments on influence of temperature on deformation of rock fills[J]. Chinese Journal of Geotechnical Engineering，2016，38(Supp.2)： 299-305.(in Chinese))
[19]	孙国亮，孙逊，张丙印. 堆石料风化试验仪的研制及应用[J]. 岩土工程学报，2009，31(9)：1 462-1 466.(SUN Guoliang，SUN Xun，ZHANG Bingyin. Development and application of weathering test apparatus for rockfill[J]. Chinese Journal of Geotechnical Engineering，2009，31(9)：1 462-1 466.(in Chinese))
[22]	中华人民共和国行业标准编写组. SL237—1999土工试验规程[S]. 北京：中国水利水电出版社，1999.(The Professional Standards Compilation Group of People¢s Republic of China. SL237—1999 code for geotechnical test[S]. Beijing：China Water and Power Press，1999.(in Chinese))
[25]	ATKINSON B K. Subcritical crack growth in geological materials[J]. Journal of Geophysical Research：Solid Earth，1984，89(B6)：4 077-4 114.
[27]	NARA Y，MORIMOTO K，YONEDA T，et al. Effects of humidity and temperature on subcritical crack growth in sandstone[J]. International Journal of Solids and Structures，2011，48(7/8)：1 130-1 140.