温控动三轴试验装置的研制及应用

doi:10.13722/j.cnki.jrme.2014.1370

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Abstract To investigate the effect of temperature on the dynamic characteristics of soil，a temperature-controlled cyclic triaxial test system was developed by using combined heating apparatus. The system can precisely realize linear，hierarchical control of sample temperature in the range of 10～100℃. Then，the saturated silt soft clay in Ningbo area is taken for example，and a series of application tests for dynamic characteristics under different temperatures are preliminarily carried out，which validate the effectiveness and reliability of the system. Test results showed that characteristics and development of hysteretic curves under different temperature is consistent with that of general triaxial test system. With the increase of temperature，plastic cumulative strain，dynamic damping ratio and dynamic pore pressure of the soft clay decreased and inversely for dynamic elastic modulus，and the incremental values for above parameters were gradually reduced with the increasing of temperature，from which the hot hardened features is revealed. Furthermore，normalized result of cumulative plastic strain and temperature is exponential.

Key words： Temperature control system Dynamic characteristics Dynamic damping ratio Dynamic elastic modulus

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http://www.rockmech.org/EN/10.13722/j.cnki.jrme.2014.1370 OR http://www.rockmech.org/EN/Y2015/V34/I07/6

[8]	白冰，陈星欣. 一种用于饱和土的热固结试验装置及其应用[J]. 岩土工程学报，2011，33(6)：896-900.(BAI Bing，CHEN Xingxin. A test apparatus for the thermal consolidation of saturated soil and its application[J]. Chinese Journal of Geotechnical Engineering，2011，33(6)：896-900.(in Chinese))
[9]	蔡国庆，赵成刚，白冰，等. 温控非饱和土三轴试验装置的研制及其应用[J]. 岩土工程学报. 2012，34(6)：1 013-1 020.(CAI Guoqing，ZHAO Chenggang，BAI Bing，et al. Development and application of a temperature-controlled triaxial test system for unsaturated soils[J]. Chinese Journal of Geotechnical Engineering，2012，34(6)：1 013-1 019.(in Chinese)) " target="_blank">
[5]	SULTAN N，DELAGE P，CUI Y J. Temperature effects on the volume change behaviour of Boom clay[J]. Engineering Geology，2002，64：135-145. " target="_blank">
[10]	CEKEREVAC C，LALOUI L. Experimental study of thermal effects on the mechanical behaviour of a clay[J]. International Journal for Numerical and Analytical Methods in Geomechanics，2004，28：209-228. " target="_blank">
[12]	ABUEL-NAGA H M，BERGADO D T，BOUAZZA A，et al. Thermomechanical model for saturated clays[J]. Ge´otechnique. 2009，59(3)：273-278 " target="_blank">
[14]	KAGAWA T. Modulus and damping factors of soft marine clays[J]. Journal of Geotechnical Engineering，1992，118(9)：1 360-1 375． " target="_blank">
[16]	黄博，丁浩，陈云敏，等. 交通荷载作用后粉质黏土不排水强度特性试验研究[J]. 岩石力学与工程学报，2010，29(2)：3 986-3 993.(HUANG Bo，DING Hao，CHEN Yunmin. Experimental study of undrained strength property of saturated silty clay after traffic load[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(2)：3 986-3 993.(in Chinese)) " target="_blank">
[18]	郭林，蔡袁强，王军，等. 长期循环荷载作用下温州结构性软黏土的应变特性研究[J]. 岩土工程学报，2012，12：2 249-2 254. (GUO Lin，CAI Yuanqiang，WANG Jun，GU Chuan，et al. Long-term cyclic strain behavior of Wenzhou structural soft clay[J]. Chinese Journal of Geotechnical Engineering，2012，12：2 249-2 254.(in Chinese)) " target="_blank">
[4]	DE-BRUYN D，THIMUS J F. The influence of temperature on mechanical characteristics of Boom clay：the results of an initial laboratory program[J]. Engineering Geology，1996，41：117-126. " target="_blank">
[1]	MITCHELL J K，CAMPANELLA R G. Creep studies in saturated clays[C]. ASTM-NRC of Canada，Symposium of Laboratory Shear Testing of Soils，Ottawa，Canada，1963，STP 361，ASTM，90-103. " target="_blank">
[2]	DEMARS K P，CHARLES R D. Soil volume changes induced by temperature cycling[J]. Canadian Geotechnical Journal，1982，19：188-194. " target="_blank">
[3]	KUNTIWATTANAKUL P，TOWHATA I，OHISHI K，et al. Temperature effects on undrained shear characteristics on clay[J]. Soils and Foundations，1995，35(1)：427-441. " target="_blank">
[6]	ABUEL-NAGA H M，BERGADO D T，LIM B F. Effect of temperature on shear strength and yielding behavior of soft Bangkok clay[J]. Soils and Foundations，2007，47(3)：423-436. " target="_blank">
[7]	陈正汉，谢云，孙树国，等.温控土工三轴仪的研制及其应用[J].岩土工程学报，2005，27(8)：928-933.(CHEN Zhenghan，XIE Yun，SUN Shuguo，et al. Temperature controlled triaxial apparatus for soils and its application[J]. Chinese Journal of Geotechnical Engineering，2005，27(8)：928-933.(in Chinese))
[19]	焦贵德，赵淑萍，马巍. 冻融循环后高温冻结粉土在循环荷载下的动力特性试验研究[J]. 土木工程学报，2010，43(12)：107-112(JIAO Guide，ZHAO Shuping，MA Wei. Experimental study of the dynamic characteristics of warm frozen silt after freeze thaw cycles under cyclic loading[J]. China Civil Engineering Journal，2010，43(12)：107-112.(in Chinese)) " target="_blank">
[11]	白冰，陈星欣. 热-冷反复变化过程中饱和黏性土的热固结试验研究[J]. 工程力学，2011，28(10)：139-144.(BAI Bing，CHEN Xingxin. Experimental study on the thermal consolidation of saturated clay under cyclic heating and cooling[J]. Engineering Mechanics，2011，28(10)：139-144.(in Chinese))
[13]	AYATO Tsutsumi，HIROYUKI Tanaka. Combined effects of strain rate and temperature on consolidation behavior of clayey soils[J]. Soils and Foundations. 2012，52(2)：207-215 " target="_blank">
[15]	ZHOU Jian，GONG Xiaonan. Strain degradation of saturated clay under cyclic loading[J]. Canadian Geotechnical Journal，2001，38：208-212. " target="_blank">
[17]	王军，谷川，蔡袁强，等. 动三轴试验中饱和软黏土的孔压特性及其对有效应力路径的影响[J]. 岩石力学与工程学报，2012，31(6)：1 290-1 296(WANG Jun，GU Chuan，CAI Yuanqiang，YANG Fang. Behavior of pore water pressure in dynamic triaxial tests of saturated soft clay and its effect on effective stress path[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(6)：1 290-1 296.(in Chinese)) " target="_blank">
[20]	罗飞，赵淑萍，马巍，等. 青藏冻结黏土滞回曲线形态特征的定量研究[J]. 岩石力学与工程学报，2013，01：208-215.(LUO Fei，ZHAO Shuping，MA Wei，et al. Quantitative research on morphological characteristics of hysteretic curves of Qinghai-tibet frozen clay[J]. Chinese Journal of Rock Mechanics and Engineering，2013，01：208-215.(in Chinese)) " target="_blank">