砾石颗粒形状对砂砾土动剪切模量和阻尼比影响的试验研究

doi:10.13722/j.cnki.jrme.2014.s2.101

Abstract
Figure/Table
References (19)
Related Citation (15)

Download: PDF (1452 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract The effects of effective confining pressure，consolidation ratio，gravel content and grain breakage on the shear modulus and damping ratio of gravel have been studied. However，only little work focused on the effect of the granule shape. Thus，the dynamic triaxial tests under different confining pressures were performed on the gravel specimens to investigate the effect of the granule shape on the shear modulus and damping ratio using a hollow cylinder apparatus(HCA)，which is developed by GDS Instruments Ltd.，United Kingdom. These specimens were made by two kinds of gravel(i.e.，with angular and round grains) with the same grain composition and relative density 45%. The results indicate that the gravel with the round shape has a higher shear modulus than that with the angular one when the confining pressure is higher than 300 kPa or the shear strain amplitude is greater than 7×10－4. The gravel content(content of grains，whose diameter is bigger than 5 mm) corresponding to the maximum shear modulus is called the critical gravel content P5cr，and the P5cr of the angular sample is higher than that of the round one. Conversely，the damping ratio of the angular sample is greater than that of the round one when the shear strain amplitude is larger than 2×10－4.

Key words： soil mechanics gravel granule shape dynamic shear modulus damping ratio critical gravel content

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	SUN Tian1
	2
	CHEN Guoxing1
	2
	WANG Binghui1
	2
	LI Xiaojun2
	3

Cite this article:

SUN Tian1,2,CHEN Guoxing1, et al. EXPERIMENTAL RESEARCH OF EFFECT OF GRANULE SHAPE ON SHEAR MODULUS AND DAMPING RATIO OF GRAVEL[J]. , 2014, 33(S2): 4211-4218.

URL:

https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2014.s2.101 OR https://rockmech.whrsm.ac.cn/EN/Y2014/V33/IS2/4211

[1]	中国地质科学研究院. 中华人民共和国地质图集地层简表[M]. 北京：地质出版社，1976：1-11(Chinese Academy of Geological Sciences.Geological atlas of people¢s republic of China[M]. Beijing：Geological Press，1976：1-11.(in Chinese))
[2]	郭庆国. 粗粒土的工程应用[M]. 郑州：黄河水利出版社，1998：1-18.(GUO Qingguo. Engineering characteristics and application of coarse-grained soil[M]. Zhengzhou：Yellow River Conservancy Press，1998：1-18.(in Chinese))
[3]	王爱萍，耿晔，金锦，等．张峰水库堆石坝料的动力特性研究[J].华北水利水电学院学报，2005，26(3)：16-18.(WANG Aiping，GENG Ye，JIN Jin，et al.Study on dynamic characteristics of rock filling materials of Zhangfeng reservoir[J].Journal of NorthChina Institute of Water Conservancy and Hydroelectric Power，2005，26(3)：16-18.(in Chinese))
[4]	凌华，傅华，蔡正银，等.坝料动力变形特性试验研究[J].岩土工程学报，2009，31(12)：1920-1924.(LING Hua，FU Hua，CAI Zhengyin，et al.Experimental study on dynamic deformation behaviors of dam materials[J].Chinese Journal of GeotechnicalEngineering，2009，31(12)：1920-1924.(in Chinese))
[5]	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)：4059-4064.(WANG Ruheng，JIA Bin，DENG Anfu，et al.Dynamic triaxial testing study on dynamic characteristics of sandy pebble soil[J].Chinese Journal ofRock Mechanics and Engineering，2006，25(Supp.2)：4059-4064. (in Chinese))
[6]	刘汉龙，杨贵，陈育民.筑坝反滤料动剪切模量和阻尼比影响因素试验研究[J].岩土力学，2010，31(7)：2030-2034.(LIU Hanlong，YANG Gui，CHEN Yumin.Experimental study of factors influencing dynamic shear modulus and damping ratio of dam inverted filler[J].Rock and Soil Mechanics，2010，31(7)：2030-2034.(in Chinese))
[7]	ROLLINS K M，EVANS M D，DIEHL N B，et al.Shear modulus and damping relationships for gravels[J].Journal of Geotechnical and GeoenvironmentalEngineering，1998，124(5)：396-405.
[8]	HARDIN B O，KALINSKI M E.Estimating the shear modulus of gravelly soils[J].Journal of Geotechnical and Geoenvironmental Engineering，2005，131(7)：867-875.
[9]	SAHAPHOL T，MIURA S.Shear moduli of volcanic soils[J].Soil Dynamics and Earthquake Engineering，2005，25(2)：157-165.
[10]	常晓林，马刚，周伟，等. 颗粒形状及粒间摩擦角对堆石体宏观力学行为的影响[J]. 岩土工程学报，2012，34(4)：646-653. (CHANG Xiaolin，MA Gang，ZHOU Wei，et al.Influences of particle shape and inter-particle friction angle on macroscopic response of rockfill[J]. Chinese Journal of Geotechnical Engineering，2012，34(4)：646-653.(in Chinese))
[11]	刘东，谢婷蜓，马刚，等. 颗粒形状对堆石体真三轴数值试验力学特性的影响[J]. 水电能源科学，2011，29(9)：68-72(LIU Dong，XIE Tingting，MA Gang，et al. Numerical simulation of true triaxial test for behavior of rockfill based on grain shape[J]. Water Resources and Power，2011，29(9)：68-72.(in Chinese))
[12]	QIAN X，GRAY D，WOODS R. Voids and Granulometry effects on shear modulus of unsaturated sands[J]. Journal of Geotechnical Engineering，1993，119(2)：295-314.
[13]	MEIDANI M，SHAFIEE A，HABIBAGAHI G，et al.Granule shape effect on the shear modulus and damping ratio of mixed gravel and clay[J].IranianJournal of Science andTechnology，Transaction B，Engineering，2002，32(B5)：501-518.
[14]	曹振中. 汶川地震液化特征及砂砾土液化预测方法研究[博士学位论文][D]. 哈尔滨：中国地震局工程力学研究所，2010.(CAOZhenzhong. Characteristics of soil liquefactionin great Wenchuan earthquakeand procedures for gravelly soilliquefactionevaluation[Ph. D. Thesis][D]. Harbin：Institute of Engineering Mechanics，China Earthquake Administration，2010.(in Chinese))
[15]	HARDINBO，DRNEVICHVP. Shear modulus and dampingin soils：design equations and curves[J]. Journal of the Soil Mechanics and Foundations Division.，1972，98(7)：667-692.
[16]	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 for soil test method[S]. Beijing：China Planning Press，1999.(in Chinese))
[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：中国计划出版社，1999.(The ProfessionalStandards Compilation Group of People¢s Republic of China. SL237—1999Specification of soil test[S]. Beijing：China Planning Press，1999.(in Chinese))
[18]	潘华，陈国兴. 动态围压下空心圆柱扭剪仪模拟主应力轴旋转应力路径能力分析[J]. 岩土力学，2011，32(6)：1 701-1 707.(PAN Hua，CHEN Guoxing. Analysis of capabilities of HCA to simulate stress paths for principal stressrotation under dynamic confining pressure[J].Rock and Soil Mechanics，2011，32(6)：1 701-1707.(in Chinese))
[19]	孙田，陈国兴，周恩全，等. 深层海床粉质黏土动剪切模量和阻尼比试验研究[J]. 土木工程学报，2012，45(增1)：9-14.(SUN Tian，CHEN Guoxing，ZHOU Enquan，et al. Experimental research on the dynamic shear modulus and the damping ratio of deep-seabed marine silty clay[J]. China Civil Engineering Journal，2012，45(Supp.1)：9-14. (in Chinese))