地震荷载下水泥土循环剪切特性研究

doi:10.13722/j.cnki.jrme.2015.0944

Abstract
Figure/Table
References (17)
Related Citation (15)

Download: PDF (2464 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract Based on the failure mechanism of cement-soil pile group under seismic loading，the dynamic cyclic shear tests of cement-soil were carried out by using GDS dynamic simple shear apparatus to study the effect of cement ratio and cyclic stress ratio on dynamic deformation，dynamic strength and degradation characteristics. The results indicated that the dynamic shear strain developed more slowly and the dynamic strength was gradually increased with the cement ratio increasing. However，the results of the increase of cyclic stress ratio were opposite. It was shown that the critical cyclic stress ratios were 0.267，0.286 and 0.327 for the cement-soil with cement ratio of 5%，10% and 15%，respectively. Using the failure criteria of turning strain and the method of normalization， the model between cyclic stress ratio and failure number was established. The degradation index of cement-soil reduced with the increase of cyclic stress ratio and cyclic number under cyclic loading，and the Semi-logarithmic model could more accurately describe the degradation characteristics of cement-soil.

Key words： soil mechanics seismic loading cement-soil dynamic deformation dynamic strength degradation index

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	LI Pu
	FAN Henghui
	SHI Xiang
	LIU Gang

Cite this article:

LI Pu,FAN Henghui,SHI Xiang, et al. Study on cyclic shear characteristics of cement-soil under seismic loading[J]. , 2016, 35(S2): 4227-4234.

URL:

https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2015.0944 OR https://rockmech.whrsm.ac.cn/EN/Y2016/V35/IS2/4227

[1]	谢定义. 土动力学[M]. 西安：西安交通大学出版社，1998：234-240.(XIE Dingyi. Soil dynamics[M]. Xi¢an：Xi¢anJiaotong University Press，1998：234-240.(in Chinese))
[2]	王军，郑晓，蔡袁强，等.应变控制下水泥土动静力特性试验[J].浙江大学学报：工学版，2010，44(10)：1857-1862.(WANG Jun，ZHENG Xiao，CAI Yuanqiang，et al. Experimental research on static and dynamic characteristics of cement soil under strain control[J]. Journal of Zhejiang University：Engineering Science，2010，44(10)：1857-1862.(in Chinese))
[3]	张敏霞，徐平，简文彬.动荷载作用下水泥土的疲劳寿命分析[J].岩土力学，2010，31(4)：1264-1268.(ZHANG Minxia，XU Ping，JIAN Wenbin. Analysis of cemented soil fatigue life under dynamic load[J]. Rock and Soil Mechanics，2010，31(4)：1264-1268.(in Chinese))
[4]	简文彬，黄春香，吴维青，等.水泥土的疲劳试验研究[J].岩石力学与工程学报，2004，23(11)：1949-1953.(JIANWenbin，HUANG Chunxiang，WUWeiqing，et al. Research on fatigue behavior of cement-sodium-silicate-grouted soil[J]. Chinese Journal of Rock Mechanics and Engineering，2004，23(11)：1949-1953.(in Chinese))
[5]	陈善民，王立忠. 水泥土动力特性室内试验及复合地基抗震特性分析[J]. 浙江大学学报：工学版，2000，34(4)：398-403.(CHEN Shanmin，WANG Lizhong. Experimental determination of dynamic properties of cement-treated soil and earthquake behavior of composite foundation[J]. Journal of Zhejiang University：Engineering Science，2000，34(4)：398-403.(in Chinese))
[6]	CONSOLIN C，VIANA DAFONSECAA，CRUZ R C，et al. Fundamental parameters for the stiffness and strength control of artificially cemented sand[J]. Journal of Geotechnical and GeoenvironmentalEngineering，2009，135(9)：1347-1353.
[7]	ACARY B，EI-TAHIRA E. Low strain dynamic properties of artificially cemented sand[J]. Journal of Geotechnical Engineering，1986，112(11)：1001-1015.
[8]	SHARMAS S，FAHEYM. Evaluation of cyclic shear strength of two cemented calcareous soils[J].Journal of Geotechnical and GeoenvironmentalEngineering，2003，129(7)：608-618.
[9]	SHARMAS S，FAHEYM. Degradation of stiffness of cemented calcareous soil in cyclic triaxial tests[J]. Journal of Geotechnical and Geoenvironmental Engineering，2003，129(7)：619-629.
[10]	LIYANAPATHIRANAD S，CARTERJ P，LIUM D，et al. Numerical modelling of soft ground improved with cement[J]. Geotechnical Special Publication，2006，44(152)：37-44.
[11]	CLOUGHG W，IWABUCHIJ，RADN S，et al. Influence of cementation on liquefaction of sands[J]. Journal of Geotechnical Engineering，1989，115(8)：1102-1117.
[12]	SUBRAMANIAMP，BANERJEES. Factors affecting shear modulus degradation of cement treated clay[J]. Soil Dynamics and Earthquake Engineering，2014，65(65)：181-188.
[13]	MOSESG G，RAOS N，RAOP N. Undrained strength behaviour of a cemented marine clay under monotonic and cyclic loading[J]. Ocean Engineering，2003，30(14)：1765-1789.
[14]	侍倩. 土工试验与测试技术[M]. 北京：化学工业出版社，2005：216-226.(SHI Qian. Soil testing and measuring technology[M]. Beijing：Chemical Industry Press，2005：216-226.(in Chinese))
[15]	谷川，蔡袁强，王军. 地震P波和S波耦合的变围压动三轴试验模拟[J]. 岩土工程学报，2012，34(10)：1903-1909.(GU Chuan，CAI Yuanqiang，WANG Jun. Coupling effects of P-waves and S-waves based on cyclic triaxial tests with cyclic confining pressure[J]. Chinese Journal of GeotechnicalEngineering，2012，34(10)：1 903-1 909.(in Chinese))
[16]	IDRISSI M，SINGHR D，DOBRYR. Nonlinear behavior of soft clays during cyclic loading[J]. Journal of the Geotechnical Engineering Division，1978，104(12)：1427-1447.
[17]	YASUHARAK，HYDEA F L，TOYOTAN，et al. Cyclic stiffness of plastic silt with an initial drained shear stress[C]//Proceedings of theGeotechnique Symp. on Pre-failure Deformation of Geomterials. London：Thomas Telford Ltd.，1998：373-382.