负温对土动剪切模量阻尼比的影响规律

doi:10.13722/j.cnki.jrme.2015.1176

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (438 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要以我国引进的首台低温共振柱仪为依托，研究不同负温下冻结土的初始剪切模量、剪切模量比和阻尼比非线性曲线的变化规律和模式。对低温共振柱仪试验技术进行研究，结果显示，采用常温试验方法进行低温共振柱试验，会导致结果离散过大，通过试验确定围压介质、冻结时间等试验条件和参数。同时，采用更符合客观实际的围压、固结和冻结方式，以粉土为样本，在室温和不同负温下进行对比试验。结果表明：负温对土的初始模量和剪切模量比影响显著，0 ℃～－4.0 ℃为敏感段，－4.0 ℃后为平稳段；敏感段内，随负温增加，初始剪切模量呈Boltzmann函数形式急速增加，参考剪应变则呈Boltzmann函数形式迅速下降，平稳段上，二者随负温增加分别平稳上升和下降；负温下阻尼比曲线在剪应变小于一定值时高于常温曲线，而在大于该应变时常温试验曲线则超过负温曲线；负温对最大阻尼比有较大影响，随负温增大，最大阻尼比呈指数形式降低。该试验采用专门的低温共振柱仪完成，围压、固结和冻结条件更接近客观实际，得到的负温对土动剪切模量阻尼比的影响模式更真实可靠，可为季冻土区抗震规范中设计谱修正以及季冻土区重大工程抗震设计中获得合理地震动输入提供依据。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	于啸波1
	孙锐1
	袁晓铭1
	孟上九1
	2
	王淼1
	孙义强2

关键词 ：土力学, 低温共振柱试验, 围压介质, 冻结时间, 初始剪切模量, 剪切模量比, 阻尼比

Abstract：The initial shear modulus，modulus ratio and damping ratio of frozen soil at different negative temperatures were experimentally investigated with the low temperature resonant column apparatus(LTRCA). The test results showed that conventional resonant column testing applied to the low- temperature samples resulted in large errors. The test parameters such as the frozen duration and the confining medium were determined. The negative temperature was found to have significant impact on the initial modulus and shear modulus ratio which was sensitive between －4 ℃ to 0 ℃ and stayed stable when lower than －4 ℃. When the temperature decreased in the sensitive interval，the initial modulus increased rapidly obeying the Boltzmann function，while the reference strain decreased sharply obeying also the Boltzmann function. In the stable interval，they changed smoothly. Below a certain strain，the damping ratio at the normal temperature was lower than that at low temperature. When the strain exceeded a certain strain，the damping ratio of normal test was larger than that of low temperature test. The negative temperature had significant influence on the maximum damping ratio，which decreased exponentially with the temperature decreasing.

Key words： soil mechanics low temperature resonant column test confining medium freezing duration initial shear modulus shear modulus ratio damping ratio

引用本文:

于啸波1，孙锐1，袁晓铭1，孟上九1，2，王淼1，孙义强2. 负温对土动剪切模量阻尼比的影响规律[J]. 岩石力学与工程学报, 2016, 35(7): 1452-1465.
YU Xiaobo1，SUN Rui1，YUAN Xiaoming1，MENG Shangjiu1，2，WANG Miao1，SUN Yiqiang2. Influence of negative temperature on dynamic shear modulus and damping ratio of soil. , 2016, 35(7): 1452-1465.

链接本文:

https://rockmech.whrsm.ac.cn/CN/10.13722/j.cnki.jrme.2015.1176 或 https://rockmech.whrsm.ac.cn/CN/Y2016/V35/I7/1452

[1]	马巍，王大雁. 中国冻土力学研究50 a回顾与展望[J]. 岩土工程学报，2012，34(4)：625-640.(MA Wei，WANG Dayan. Studies on frozen soil mechanics in China in past 50 years and their prospect[J]. Chinese Journal of Geotechnical Engineering，2012，34(4)：625-640.(in Chinese))
[2]	徐学燕，仲丛利，陈亚明，等. 冻土的动力特性研究及其参数确定[J]. 岩土工程学报，1998，20(5)：80-84.(XU Xueyan，ZHONG Congli，CHEN Yaming，et al. Research on dynamic characters of frozen soil and determination of its parameters[J]. Chinese Journal of Geotechnical Engineering，1998，20(5)：80-84.(in Chinese))
[3]	徐学燕，仲丛利. 冻土动弹模、动泊桑比的确定[J]. 哈尔滨建筑工程学院学报，1997，30(4)：23-29.(XU Xueyan，ZHONG Congli. The determination of dynamic elastic modulus and dynamic Poisson?s ratio of frozen soil[J]. Journal of Harbin University of Civil Engineering and Architecture，1997，30(4)：23-29.(in Chinese)) " target="_blank">
[4]	XIONG F，YANG Z H，XU G. Seasonally frozen soil effects on the dynamic behavior of building structures[DB/OL]. http：// www.iitk.ac.in/ nicee/wcee/article/14_S09-005.pdf，2008-10-12/ 2015-8-25. " target="_blank">
[5]	袁晓铭，孙锐，孙静，等. 常规土类动剪切模量比和阻尼比试验研究[J]. 地震工程与工程振动，2000，20(4)：133-139.(YUAN Xiaoming，SUN Rui，SUN Jing，et al. Laboratory experimental study on dynamic shear modulus ratio and damping ratio of soils[J]. Earthquake Engineering and Engineering Vibration，2000，20(4)：133-139.(in Chinese)) " target="_blank">
[6]	陈国兴，谢君斐，张克绪. 土的动模量和阻尼比的经验估计[J]. 地震工程与工程振动，1995，15(1)：73-83.(CHEN Guoxing，XIE Junfei，ZHANG Kexu. The empirical evaluation of soil moduli and damping ratio for dynamic analysis[J]. Earthquake Engineering and Engineering Vibration，1995，15(1)：73-83.(in Chinese)) " target="_blank">
[7]	孙锐，陈红娟，袁晓铭. 土的非线性动剪切模量比和阻尼比不确定性分析[J]. 岩土工程学报，2010，32(8)：1 228-1 235.(SUN Rui，CHEN Hongjuan，YUAN Xiaoming. Uncertainty of non-linear dynamic shear modular ratio and damping ratio of soils[J]. Chinese Journal of Geotechnical Engineering，2010，32(8)：1 228-1 235.(in Chinese)) " target="_blank">
[8]	何昌荣. 动模量和阻尼的动三轴试验研究[J]. 岩土工程学报，1997，19(2)：42-51.(HE Changrong. Dynamic triaxial test on modulus and damping[J]. Chinese Journal of Geotechnical Engineering，1997，19(2)：42-51.(in Chinese))
[9]	冯秀丽，叶银灿，马艳霞，等. 动荷载作用下海底粉土的孔压响应及其动强度[J]. 青岛海洋大学学报，2002：32(2)：429-433.(FENG Xiuli，YE Yincan，MA Yanxia，et al. Silt pore pressure response and dynamic strength under dynamic loading[J]. Periodical of Ocean University of China，2002，32(2)：429-433.(in Chinese)) " target="_blank">
[10]	陈国兴，刘雪珠. 南京及邻近地区新近沉积土的动剪切模量和阻尼比的试验研究[J]. 岩石力学与工程学报，2004，23(8)：1 403-1 410. (CHEN Guoxing，LIU Xuezhu. Testing study on ratio of dynamic shear moduli and ratio of damping for recently deposited soils in Nanjing and its neighboring areas[J]. Chinese Journal of Rock Mechanics and Engineering，2004，23(8)：1 403-1 410.(in Chinese)) " target="_blank">
[11]	骆亚生，田堪良. 非饱和黄土的动剪模量与阻尼比[J]. 水利学报，2005，36(7)：830-834.(LUO Yasheng，TIAN Kanliang. Dynamic shear modulus and damping ratio of unsaturated loess[J]. Journal of Hydraulic Engineering，2005，36(7)：830-834.(in Chinese)) " target="_blank">
[12]	吕悦军，唐荣余，沙海军. 渤海海底土类动剪切模量比和阻尼比试验研究[J]. 防灾减灾工程学报，2003，23(2)：35-42.(LU Yuejun，TANG Rongyu，SHA Haijun. Experimental study on dynamic shear modulus ratio and damping ratio of the soils of Bohai seafloor[J]. Journal of Disaster Prevention and Mitigation Engineering，2003，23(2)：35-42.(in Chinese)) " target="_blank">
[13]	尚守平，卢华喜，任慧，等. 粉质粘土动剪切模量的试验对比研究[J]. 岩土工程学报，2006，28(3)：410-414.(SHANG Shouping，LU Huaxi，REN Hui，et al. Comparative study on dynamic shear modulus of silty clay[J]. Chinese Journal of Geotechnical Engineering，2006，28(3)：410-414.(in Chinese))
[14]	蔡袁强，梁旭，李坤. 水泥土-土复合试样的动力特性[J]. 水力学报，2004，(10)：19-25.(CAI Yuanqiang，LIANG Xu，LI Kun. Dynamic characteristics of composite sample of cemented clay-clay[J]. Journal of Hydraulic Engineering，2004，(10)：19-25.(in Chinese)) " target="_blank">
[15]	王汝恒，贾彬，邓安福，等. 砂卵石土动力特性的动三轴试验研究[J]. 岩石力学与工程学报，2006，25(增2)：4 059-4 064.(WANG Ruheng，JIA Bin，DENG Anfu，et al. Dynamic triaxial testing study on dynamic characteristics of sandy pebble soil[J]. Chinese Journal of Rock Mechanics and Engineering，2006，25(Supp.2)：4 059-4 064.(in Chinese)) " target="_blank">
[16]	American Society of Testing Materials. D4015—92 Standard test methods for modulus and damping of soils by the resonant-column method[S]. Philadelphia：American Society for Testing and Materials，2000. " target="_blank">
[17]	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 Specification of soil test[S]. Beijing：China Water Power Press，1999.(in Chinese)) " target="_blank">
[18]	AL-HUNAIDI M O，CHEN P A ，RAINER J H，et al. Shear moduli and damping in frozen and unfrozen clay by resonant column test[J]. Canadian Geotechnical Journal，1996，33(3)：510-514. " target="_blank">
[19]	齐吉琳，马巍，孙崇绍，等. 张掖地区季节冻土场地上的地震动效应[J]. 岩石力学与工程学报，2005，24(12)：2 082-2 088.(QI Jilin，MA Wei，SUN Chongshao，et al. Seismic response analysis of seasonally frozen ground of Zhangye area[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(12)：2 082-2 088.(in Chinese)) " target="_blank">
[20]	朱占元. 青藏铁路列车行驶多年冻土场地路基振动反应与振陷预测[博士学位论文][D]. 哈尔滨：哈尔滨工业大学，2009.(ZHU Zhanyuan. Train-induced vibration response and subsidence prediction of permafrost subgrade along Qinghai—Tibet railway[Ph. D. Thesis][D]. Harbin：Harbin Institute of Technology，2009.(in Chinese)) " target="_blank">
[21]	张锋. 深季节冻土区重载汽车荷载下路基动力响应与永久变形[博士学位论文][D]. 哈尔滨：哈尔滨工业大学，2012：31-58.(ZHANG Feng. Dynamic response and permanent of subgrade influenced by heavy truck load in deep seasonally frozen region[Ph. D. Thesis][D]. Harbin： Harbin Institute of Technology，2012：31-58.(in Chinese)) " target="_blank">
[22]	SHAN W，JIANG H，HU Z G，et al. Island permafrost degrading process and deformation characteristics of expressway widen subgrade foundation[J]. Disaster Advances，2012，5(4)：827-832. " target="_blank">
[23]	中华人民共和国国家标准编写组. GB/T50123—1999土工试验方法标准[S]. 北京：中国计划出版社，1999.(The National Standards Compilation Group of People?s Republic of China. GB/T50123—1999 Standard of soil test method[S]. Beijing：China Planning Press，1999. (in Chinese)) " target="_blank">
[24]	王晓霞. 高压下硅油的布里渊散射和拉曼散射研究[硕士学位论文][D]. 长春：吉林大学，2014：34-39.(WANG Xiaoxia. Brillouin scattering and Raman scattering on silicon oil under high pressure[M. S. Thesis][D]. Changchun：Jilin University，2014：34-39.(in Chinese)) " target="_blank">
[25]	何平，朱元林，张家懿，等. 饱和冻结粉土的动弹模与动强度[J]. 冰川冻土，1993，15(1)：170-174.(HE Ping，ZHU Yuanlin，ZHANG Jiayi，et al. Dynamic elastic modulus and dynamic strength of saturated frozen silt[J]. Journal of Glaciology and Geocryology，1993，15(1)：170-174.(in Chinese))
[26]	王大雁，朱元林，赵淑萍，等. 超声波法测定冻土动弹性力学参数试验研究[J]. 岩土工程学报，2002，24(5)：612-615.(WANG Dayan，ZHU Yuanlin，ZHAO Shuping，et al. Study on experimental determination of the dynamic elastic mechanical parameters of frozen soil by ultrasonic technique[J]. Chinese Journal of Geotechnical Engineering，2002，24(5)：612-615.(in Chinese))
[27]	范菊红. 动荷载作用下人工冻土力学特性及本构模型研究[硕士学位论文][D]. 淮南：安徽理工大学，2012：13-23.(FAN Juhong. Experimental research and engineering application of the artificially frozen soil dynamic constitutive model[M. S. Thesis][D]. Huainan：Anhui University of Science and Technology，2012：13-23.(in Chinese)) " target="_blank">
[28]	张照太. 深土冻土力学性能试验研究及工程应用[硕士学位论文][D]. 淮南：安徽理工大学，2006.(ZHANG Zhaotai. The mechanical properties tests in deep frozen soil and calculation of frozen wall[M. S. Thesis][D]. Huainan：Anhui University of Science and Technology，2006.(in Chinese)) " target="_blank">
[29]	严晗，王天亮，刘建坤，等. 反复冻融条件下粉砂土动力学参数试验研究[J]. 岩土力学，2014，35(3)：683-688.(YAN Han，WANG Tianliang，LIU Jiankun，et al. Experimental study of dynamic parameters of silty soil subjected to repeated freeze-thaw[J]. Rock and Soil Mechanics，2014，35(3)：683-688.(in Chinese)) " target="_blank">
[30]	王静. 季冻区路基土冻融循环后力学特性研究及微观机理分析[博士学位论文][D]. 长春：吉林大学，2012：29-32.(WANG Jing. Research on the mechanical properties of subgrade soil after several freeze-thaw cycles in seasonally frozen soil region and microscopic mechanism analysis[Ph. D. Thesis][D]. Changchun：Jilin University，2012：29-32.(in Chinese)) " target="_blank">
[31]	李顺群，高凌霞，柴寿喜. 冻土力学性质影响因素的显著性和交互作用研究[J]. 岩土力学，2012，33(4)：1 173-1 177.(LI Shunqun，GAO Lingxia，CHAI Shouxi. Significance and interaction of factors on mechanical properties of frozen soil[J]. Rock and Soil Mechanics，2012，33(4)：1 173-1 177.(in Chinese)) " target="_blank">
[32]	周家作，谭龙，韦昌富，等. 土的冻结温度与过冷温度试验研究[J]. 岩土力学，2015，36(3)：777-785.(ZHOU Jiazuo，TAN Long，WEI Changfu，et al. Experimental research on freezing temperature and super-cooling temperature of soil[J]. Rock and Soil Mechanics，2015，36(3)：777-785.(in Chinese)) " target="_blank">
[33]	HARDIN B O，DRNEVICH V P. Shear modulus and damping in soils：Measurement and parameter effects[J]. Journal of the Soil Mechanics and Foundations Division，ASCE，1972，98(6)：603-624. " target="_blank">
[34]	张宇，余飞，陈善雄，等. CAS-1模拟月壤动剪切模量与阻尼比的试验研究[J]. 岩土力学，2014，35(1)：74-82.(ZHANG Yu，YU Fei，CHEN Shanxiong，et al. Experimental study of dynamic shear modulus and damping ratio of CAS-1 lunar soil simulant[J]. Rock and Soil Mechanics，2014，35(1)：74-82.(in Chinese)) " target="_blank">
[35]	宋全杰，李海波，李俊如，等. 强风化花岗岩动力学参数的试验研究[J]. 岩土力学，2013，34(4)：1 031-1 036.(SONG Quanjie，LI Haibo，LI Junru，et al. Experimental study of dynamic properties of highly weathered granite[J]. Rock and Soil Mechanics，2013，34(4)：1 031-1 036.(in Chinese)) " target="_blank">
[36]	李永强，景立平，梁海安，等. 土体动剪切模量测定及非线性拟合方法研究[J]. 世界地震工程，2010，(增1)：247-252.(LI Yongqiang，JING Liping，LIANG Haian，et al. Testing and nonlinear fitting of dynamic shear modulus of soil[J]. World Earthquake Engineering，2010，(Supp.1)：247-252.(in Chinese)) " target="_blank">