循环移动轮载下粗粒土路基填料永久变形特性及安定分析

doi:10.13722/j.cnki.jrme.2020.0165

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摘要针对常规的恒定围压动三轴试验仅能模拟路基土动应力场中的循环偏应力等不足，为更真实地反映移动轮载下路基土的长期变形性能和破坏机制，采用应力路径斜率、应力路径长度、最小平均主应力等变量的不同组合，模拟循环偏应力和循环围压耦合下的动态应力路径，开展基层和底基层粗粒土填料的一系列恒定围压和循环围压动三轴试验，探究不同动态应力路径下粗粒土路基填料轴向累积塑性应变随荷载循环作用次数的变化规律。针对已有安定状态判定准则未能准确界定永久变形行为不同阶段且未能考虑循环围压效应等不足，提出基于Savitzky-Golay滤波法的永久变形行为不同阶段划分方法，采用循环围压条件下永久变形试验结果对现有安定准则进行了改进，结果表明该新判定准则具有较好的准确性和普适性。

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	郑可扬1
	2
	肖源杰1
	3
	王萌1
	王斌4
	严金龙4
	陈晓斌1
	3
	叶新宇1

关键词 ：土力学, 粗粒土填料, 循环荷载, 循环围压动三轴试验, 永久变形, 安定分析

Abstract：Conventional repeated load triaxial(RLT) tests can only simulate the cyclic load pulsed vertically. In order to study long-term deformation and failure mechanisms due to moving wheel loads more realistically，a series of RLT tests with both constant and variable confining pressure levels were conducted on typical base and subbase unbound granular materials. Different realistic in-situ stress paths defined by stress path slope，stress path length and minimum mean principal stress were applied. The coupling effect of cyclic deviatoric and confining stress components on the accumulation of the axial plastic strain was explored. Considering that the existing shakedown criteria for permanent deformation behavior cannot accurately distinguish different stages of permanent deformation behavior and are established from traditional RLT tests with constant confining pressure，a new criterion was proposed to address such insufficiencies. The improved accuracy and applicability of the modified shakedown analysis method and its criteria were confirmed by the realistic stress path test results obtained in this study.

Key words： rock mechanics coarse-grained embankment materials repeated loading variable confining pressure triaxial tests permanent deformation shakedown analysis

引用本文:

郑可扬1，2，肖源杰1，3，王萌1，王斌4，严金龙4，陈晓斌1，3，叶新宇1. 循环移动轮载下粗粒土路基填料永久变形特性及安定分析[J]. 岩石力学与工程学报, 2020, 39(9): 1930-1943.
ZHENG Keyang1，2，XIAO Yuanjie1，3，WANG Meng1，WANG Bin4，YAN Jinlong4，CHEN Xiaobin1，3，YE Xinyu1. Permanent deformation characteristics and shakedown analysis of coarse-grained embankment materials under moving wheel loads#br#. , 2020, 39(9): 1930-1943.

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http://rockmech.whrsm.ac.cn/CN/10.13722/j.cnki.jrme.2020.0165 或 http://rockmech.whrsm.ac.cn/CN/Y2020/V39/I9/1930

[1]	AASHTO. The AASHTO road tests，reports 5，pavement research[R]. Special Report 61E. Washington D C：Highway Research Board，1962：1 152-1 157.
[8]	BROWN S F. Soil mechanics in pavement engineering[J]. Geotechnique，1996，46(3)：383-426.
[2]	XIAO Y J，TUTUMLUER E，MISHRA D. Performance evaluations of unbound aggregate permanent deformation models for different aggregate physical properties[J]. Transportation Research Record Journal of the Transportation Research Board，2015，2525：20-30.
[5]	罗强，刘钢，张良，等. 循环荷载作用下基床填料累积变形演化状态特征及试验验证[J]. 铁道学报，2016，38(7)：110-116. (LUO Qiang，LIU Gang，ZHANG Liang，et al. Characteristics of cumulative deformation evolution state of subgrade filler under cyclic loading and experimental verification[J]. Journal of the China Railway Society，2016，38(7)：110-116.(in Chinese))
[4]	高启聚，姚祖康. 粒料基层设计指标和控制模型研究[J]. 公路交通科技，2016，33(5)：39-45.(GAO Juxian，YAO Zukang. Study on design index and model for controlling permanent deformation of granular base course[J]. Journal of Highway and Transportation Research and Development，2016，33(5)：39-45.(in Chinese))
[13]	周文权，冷伍明，刘文劼，等. 低围压循环荷载作用下饱和粗粒土的动力特性与骨干曲线模型研究[J]. 岩土力学，2016，37(2)：415-422.(ZHOU Wenquan，LENG Wuming，LIU Wenjie，et al. Dynamic behavior and backbone curve model of saturated coarse-grained soil under cyclic loading and low confining pressure[J]. Rock and Soil Mechanics，2016，37(2)：415-422.(in Chinese))
[22]	GARCIA R，HERRMNAN J. Shakedown of unbound granular material[J]. Granul Matter，2005，(7)：109-118.
[31]	CEN-European Committee for Standardization. Cyclic load triaxial test for unbound mixtures[S](European Standard：EN 13286-7-2004). Brussels，CEN-European Committee for Standardization，2004.
[7]	王常晶，陈云敏. 移动荷载引起的地基应力路径变化及主应力轴旋转[J]. 岩石力学与工程学报，2007，26(8)：1 698-1 704.(WANG Changjing，CHEN Yunmin. Stress state variation and principal stress axes rotation of ground induced by moving loads[J]. Journal of Rock Mechanics and Engineering，2007，26(8)：1 698-1 704.(in Chinese))
[9]	ISHIKAWA T，SEKINE E，MIURA S. Cyclic deformation of granular material subjected to moving-wheel loads[J]. Canadian Geotechnical Journal，2011，48(5)：691-703.
[11]	谢婉丽，王家鼎，张林洪. 土石粗粒料的强度和变形特性的试验研究[J]. 岩石力学与工程学报，2005，24(3)：430-437.(XIE Wanli，WANG Jiading，ZHANG Linhong. Testing study on characteristics of strength and deformation for coarse materials[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(3)：430-437.(in Chinese))
[16]	龙尧，张家生，丁建源，等. 粗粒土路基循环荷载试验及累积变形模型研究[J]. 振动与冲击，2017，36(16)：128-133.(LONG Yao，ZHANG Jiasheng，DING Jianyuan，et al. The cyclic load experiment and an accumulated deformation model for coarse- grained soil filling[J]. Journal of Vibration and Shock，2017，36(16)：128-133.(in Chinese))
[18]	GU C，WANG J，CAI Y Q，et al. Deformation characteristics of overconsolidated clay sheared under constant and variable confining pressure[J]. Soils and Foundations，2016，56(3)：427-439.
[20]	孙磊，王军，谷川，等. 循环偏应力和循环围压耦合效应对饱和软黏土变形特性的影响[J]. 岩土工程学报，2015，37(12)：2 198-2 204.(SUN Lei，WANG Jun，GU Chuan，et al. Coupling effects of cyclic deviator stress and cyclic confining pressure on deformation behaviour of saturated clay[J]. Chinese Journal of Geotechnical Engineering，2015，37(12)：2 198-2 204.(in Chinese))
[25]	WERKMEISTER S，DAWSON A R，WELLNER F. Permanent deformation behavior of granular materials and the shakedown concept[R]. [S. l.]：Transportation Research Record，2001：75-81.
[27]	XIAO Y J，ZHANG Z，CHEN L X，et al. Modeling stress path dependency of cyclic plastic strain accumulation of unbound granular materials under moving wheel loads[J]. Materials and Design，2018，137(1)：9-21.
[29]	中华人民共和国行业标准编写组. JTG E40—2007公路土工试验规程[S]. 北京：人民交通出版社，2007.(The Professional Standard Compilation Group of the People′s Republic of China. JTG E40—2007 Test method of soils for highway engineering[S]. Beijing：China Communications Press，2007.(in Chinese))
[34]	张明东，曹颖，吴博洋，等. 基于Savitzky-Golay算法的地磁去扰研究[J]. 微波学报，2018，34(增2)：474-476.(ZHANG Mingdong，CAO Ying，WU Boyang，et al. Research on the Savitzky- Golay algorithm in geomagnetic disturbance[J]. Journal of Microwave Science，2018，34(Supp.2)：474-476. (in Chinese))
[36]	TAO M J，MOHAMMAD L N，NAZZAL M D，et al. Application of shakedown theory in characterizing traditional and recycled pavement base materials[J]. Journal of Transportation Engineering，2010，136(3)：214-222.
[6]	KIM I T，TUTUMLUER E. Unbound aggregate rutting models for stress rotations and effects of moving wheel loads[J]. Transportation Research Record Journal of the Transportation Research Board，2005，1913：41-49.
[15]	王龙，解晓光，巴恒静. 长期动载下级配碎石的塑性变形与临界应力[J]. 同济大学学报：自然科学版，2010，38(9)：1 293-1 297. (WANG Long，XIE Xiaoguang，BA Hengjing. Critical stress and plastic deformation of graded aggregate material under long-term dynamic repeat load[J]. Journal of Tongji University：Natural Science，2010，38(9)：1 293-1 297.(in Chinese))
[24]	WERKMEISTER S. Permanent deformation behaviour of unbound granular materials in pavement constructions[Ph. D. Thesis][D]. Dresden，Germany：University of Technology，2003.
[33]	FANG H，LIU Q T，MO L T，et al. Characterization of three-stage rutting development of asphalt mixtures[J]. Construction and Building Materials，2017，154(nov.15)：340-348.
[3]	LENG W M，XIAO Y J，NIE R S，et al. Investigating strength and deformation characteristics of heavy-haul railway embankment materials using large-scale undrained cyclic triaxial tests[J]. International Journal of Geomechanics，2017，17(9)：04017074.1-04017074.13.
[12]	冷伍明，周文权，聂如松，等. 重载铁路粗粒土填料动力特性及累积变形分析[J]. 岩土力学，2016，37(3)：728-736.(LENG Wuming，ZHOU Wenquan，NIE Rusong，et al. Analysis of dynamic characteristics and accumulative deformation of coarse-grained soil filling of heavy-haul railway[J]. Rock and Soil Mechanics，2016，37(3)：728-736. (in Chinese))
[21]	陈存礼，谢定义，高鹏. 球应力往返作用下饱和砂土变形特性的试验研究[J]. 岩石力学与工程学报，2005，24(3)：513-520. (CHEN Cunli，XIE Dingyi，GAO Peng. Testing study on deformation characteristics of saturated sand under repeated spherical stress[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(3)：513-520.(in Chinese))
[30]	PEREZ I，MEDINA L，GALLEGO J. Plastic deformation behaviour of pavement granular materials under low traffic loading[J]. Granular Matter，2010，12(1)：57-68.
[10]	刘萌成，高玉峰，刘汉龙，等. 堆石料变形与强度特性的大型三轴试验研究[J]. 岩石力学与工程学报，2003，22(7)：1 104-1 111. (LIU Mengcheng，GAO Yufeng，LIU Hanlong，et al. Large-scale triaxial test study on deformation and strength characteristics of rockfill materials[J]. Chinese Journal of Rock Mechanics and Engineering，2003，22(7)：1 104-1 111.(in Chinese))
[14]	王康宇，庄妍，耿雪玉. 铁路路基粗粒土填料临界动应力试验研究[J]. 岩土力学，2020，41(6)：1-9.(WANG Kangyu，ZHUANG Yan，GENG Xueyu. Experimental research on critical dynamic stress of coarse-grained soil in railway subgrade[J]. Rock and Soil Mechanics，2020，41(6)：1-9.(in Chinese))
[17]	李翀，何昌荣，王琛，等. 粗粒料大型三轴试验的尺寸效应研究[J]. 岩土力学，2008，29(增1)：563-566.(LI Chong，HE Changrong，WANG Chen，et al. Study of scale effect of large-scale trixial test of coarse-grained materials[J]. Rock and Soil Mechanics，2008，29(Supp.1)：563-566.(in Chinese))
[19]	谷川. 基于循环围压应力路径的饱和软粘土动力特性试验研究[博士学位论文][D]. 杭州：浙江大学，2012.(GU Chuan. Study on the dynamic behavior of saturated clays based on the stress paths with variable confining pressure[Ph. D. Thesis][D]. Hangzhou：Zhejiang University，2012.(in Chinese))
[23]	JOHNSON K L. Plastic flow residual stress and shakedown in rolling contact[C]// Proceedings of the Second International Symposium on Contact Mechanics and Wear of Rail/Wheel systems. Waterloo，Canada：University of Waterloo Press，1986：83-97.
[26]	ABU-FARSAKH M，SOUCI G，VOYIADJIS G Z，et al. Evaluation of factors affecting the performance of geogrid-reinforced granular base material using repeated load triaxial tests[J]. Journal of Materials in Civil Engineering，2012，24(1)：72-83.
[28]	CHEN W B，FENG W Q，YIN J H，et al. Characterization of permanent axial strain of granular materials subjected to cyclic loading based on shakedown theory[J]. Construction and Building Materials，2019，198(FEB.20)：751-761.
[32]	AHARI A S，FOROUGH S A，KHODAII A，et al. Modeling the primary and secondary regions of creep curves for sbs-modified asphalt mixtures under dry and wet conditions[J]. Journal of Materials in Civil Engineering，2014，26(5)：904-911.
[35]	PEREZ I，MEDINA L，ROMANA M G. Permanent deformation models for a granular material used in road pavements[J]. Construction and Building Materials，2006，20(9)：790-800.