|Table of Contents|

Test on shear strength criterion of soft soil under cyclic loading(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2009年06期
Page:
54-58
Research Field:
Publishing date:
2009-12-20

Info

Title:
Test on shear strength criterion of soft soil under cyclic loading
Author(s):
LEI Hua-yang; JIANG Yan; LU Pei-yi
Department of Civil Engineering,Tianjin University,Tianjin 300072,China
Keywords:
geotechnical engineering;  traffic loading;  soft soil;  structural characteristic;  failure criterion of strain;  dynamic strength
PACS:
TU442
DOI:
-
Abstract:
A series of cyclic triaxial shear tests were performed on soft soil in Tianjin city, which reveals the law of axial strain and pore water pressure under dynamic loading. The appropriate failure criterion of dynamic strain is discussed, meanwhile the difference of cyclic strength under different standards is given. The results show that: the critical dynamic stress ratio of structural soft clay is not a fixed value, which reduces when the pressure increases; when the confinement pressure is below the structural yield stress, the influence of different failure criterions of strain on the dynamic strength is little, when the pressure increases, the impact will be more obvious, but with the increase of cyclic number, the dynamic strength under different failure criterions of strain tends to a stable value; so using a turning point as the failure criterion of strength is feasible. 1 tab, 3 figs, 19 refs.

References:

［1］魏汝龙.软粘土的强度和变形［M］.北京:人民交通出版社,1987.
[2]Guo T Q,Prakash S.Liquefaction of silts and siltclay mixtures［J］.Journal of Geotechnical and Geoenvironmental Engineering,1999,125(8):706710.
[3]Timothy D S,Scott M O.Liquefactioon resistance using CPT and field case histories［J］.Journal of Geotechnical Engineering,1995,121(12):856869.
[4]程国勇，王建华，张献民.饱和砂土的剪切波速与其抗液化强度关系研究［J］.岩土力学，2007,28(4):689693. CHENG Guoyong,WANG Jianhua,ZHANG Xianmin.Experimental study on quantitative relationship between shear wave velocity and cyclic liquefaction resistance of saturated sand［J］.Rock and Soil Mechanics,2007，28(4)：689693.
[5]Andrus R D,Stokoe K H.Liquefaction resistance of soils from shearwave velocity［J］.Journal of Geotechnical and Geoenvironmental Engineering,2000,126(11):10151025.
[6]柯瀚，陈云敏，周燕国，等.动态三轴试验确定砂土抗液化强度［J］.土木工程学报，2004,37(9):4854. KE Han,CHEN Yunmin,ZHOU Yanguo，et al.Evaluation of liquefaction resistance by means of dynamic triaxial tests with shear wave velocity measurement ［J］.China Civil Engineering Journal,2004，37(9)：4854.
[7]白冰,周健.周期荷载作用下粘性土变形及强度特性述评［J］.岩土力学，1999，20(3)：8490. BAI Bing,ZHOU Jian.Some problems on behavior of saturated clay under cyclic loading［J］.Rock and Soil Mechanics,1999，20(3)：8490.
[8]阎澍旺.往复荷载作用下重塑软粘土的变形特性［J］.岩土工程学报，1991，13(1)：4853. YAN Shuwang.The deformation behavior of remold soft clay under cyclic loading ［J］.Chinese Journal of Geotechnical Engineering,1991，13(1)：4853.
[9]蒋军.循环荷载作用下粘土应变速率试验研究［J］.岩土工程学报，2002，24(4)：529531. JIANG Jun.Study on the strain rate of clay under cyclic loading ［J］.Chinese Journal of Geotechnical Engineering,2002，24(4)：529531.
[10]周建,龚晓南.循环荷载作用下饱和软粘土应变软化研究［J］.土木工程学报，2000，33(5)：7578. ZHOU Jian,GONG Xiaonan.Study on strain soften in saturated soft clay under cyclic loading ［J］.China Civil Engineering Journal,2000，33(5)：7578.
[11]Yasuhara K，Hirao K,Flhyde A.Effects of cyclic loading on untrained strength and compressibility of clay［J］.Soils and Foundations，1992，32(1)：100116.
[12]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)：3948. HE Changrong.Dynamic triaxial test on modulus and damping［J］.Chinese Journal of Geotechnical Engineering，1997，19(2)：3948.
[13]王建荣，张振中，王峻，等.振动频率对原状黄土动本构关系的影响［J］.西北地震学报，1999，21（3）：310314. WANG Jianrong,ZHANG Zhenzhong,WANG Jun,et al.Effect of vibration frequency on dynamic constitutive relationship of loess［J］.Northwestern Seismological Journal，1999，21(3)：310314.
[14]陈存礼，胡再强.强夯地基黄土的动力特性参数及其与振动频率的关系［J］.西安理工大学学报，1998，14（2）：216220. CHEN Cunli,HU Zaiqiang.Dynamic characteristics parameters and their relation to vibrofrequency of dynamicallycompacted foundation loess ［J］. Journal of Xi’an University of Technology，1998，14(2)：216220.
[15]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 Xiaoming,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.
[16]廖红建，宋丽，杨政，等.往返荷载下粘性土的强度及取值标准试验研究［J］.岩土力学，2001，22(1)：1620. LIAO Hongjian，SONG Li，YANG Zheng，et al.Experiment study on shear strength and yield criterion of cohesive soils under repeated loads［J］.Rock and Soil Mechanics，2001，22(1)：1620.
[17]谢定义.土动力学［M］.西安：西安交通大学出版社，1988.
[18]王国欣，肖树芳，周旺高.原状结构性土先期固结压力与结构强度的确定［J］.岩土工程学报，2003，25（2）：249251. WANG Guoxin,XIAO Shufang,ZHOU Wanggao.Determination of preconsolidation pressure and structural strength of undisturbed structural soils［J］.Chinese Journal of Geotechnical Engineering,2003，25(2)：249251.
[19]沈珠江.结构性粘土的堆砌体模型［J］.岩土力学，2000，21（1）：14. SHEN Zhujiang.A masonry model for structured clays［J］.Rock and Soil Mechanics,2000，21(1)：14. (上接第23页) 参考文献： References:［1］卢铁瑞.立交桥桥面防水层性能研究及应用［J］.石油沥青，1996,10(1):3745. LU Tierui.The properties researches and application of waterproof layer in the deck of interchange［J］.Asphalt，1996,10(1):3745.
[2]刘贤惠,武泽锋,李巍,等.同步碎石封层技术简介［J］.东北公路,2003,26(1）：2124. LIU Xianhui,WU Zefeng,LI Wei,et al.Synchronous crushed stone seal coat technology［J］.Northeastern Highway,2003,26(1）:2124.
[3]张新荣，焦生杰.同步碎石封层技术与设备［J］.筑路机械与施工机械化，2004，21（11）：14. ZHANG Xinrong,JIAO Shengjie.Synchronous pavement surface dressing and equipment［J］.Road Machinery & Construction Mechanization,2004，21（11）：14.
[4]屈娜.同步碎石用于桥面防水粘结层的研究［D］.西安:长安大学,2007.
[5]吴耀东,吴玉辉,李想,等.桥面防水层性能试验研究［J］.北方交通,2008(2)：101104. WU Yaodong,WU Yuhui,LI Xiang,et al.Research on test of deck waterproof layer for property［J］.Northern Communications,2008(2)：101104.
[6]张占军.水泥混凝土桥面沥青混凝土铺装结构研究［D］.西安：长安大学，2000.
[7]祝海燕,王选仓.旧水泥路面薄层沥青罩面结构层间剪应力分析［J］.辽宁省交通高等专科学校学报，2006,8(4):12. ZHU Haiyan,WANG Xuancang.Shearing stress analysis of thin asphalt overlays on old cement concrete pavement［J］.Journal of Liaoning Provincial College of Communications,2006,8(4):12.
[8]蒋维祥,魏为成.水泥混凝土桥面防水粘结层研究综述［J］.公路交通技术，2007(增刊):8790. JIANG Weixiang,WEI Weicheng.Study on waterproof binding layer on concrete bridge pavement［J］.Technology of Highway and Transport,2007(S):8790.

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Last Update: 2009-12-20