[1]陈鸽,朱俊高,袁荣宏,等.风干与饱和堆石料强度与变形特性试验研究[J].西安建筑科技大学学报(自然科学版),2019,51(06):853-858,872.[doi:10.15986/j.1006-7930.2019.06.012]
　CHEN Ge,ZHU Jungao,et al.Experimental study on strength and deformation characteristics of dry and saturated coarse-grained soils[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2019,51(06):853-858,872.[doi:10.15986/j.1006-7930.2019.06.012]
点击复制

风干与饱和堆石料强度与变形特性试验研究()
分享到：

西安建筑科技大学学报（自然科学版）[ISSN:1006-7930/CN:61-1295/TU]

卷:
51
期数:
2019年06期
页码:
853-858,872
栏目:
出版日期:
2019-12-31

文章信息/Info

Title:
Experimental study on strength and deformation characteristics of dry and saturated coarse-grained soils
文章编号:
1006-7930(2019)06-0853-06
作者:
陈鸽1; 2; 朱俊高1; 2; 袁荣宏3; 王龙1; 2
(1.河海大学 岩土力学与堤坝工程教育部重点实验室，江苏 南京210098；2.河海大学 岩土工程科学研究所，江苏 南京210098；3.张家港市金厦房地产开发公司,江苏 张家港 215600)
Author(s):
CHEN Ge1;  2;  ZHU Jungao1; 2;  YUAN Ronghong3;  WANG Long1; 2
(1. Key Laboratory of Ministry of Education for Geotechanics and Embankment Engineering, Hohai University, Nanjing 210098, China; 2. Geotechnical Research Institute, Hohai University, Nanjing 210098, China；3.Zhangjiagang Jinsha Real Estate Co.,Ltd, Zhangjiagang 215600, China)
关键词:
粗粒土; 风干样; 饱和样; 强度特性; 变形特性; 颗粒破碎
Keywords:
coarse-grained soil;  air-dried sample;  saturated sample;  strength characteristics;  deformation characteristics;  particle breakage
分类号:
TU411
DOI:
10.15986/j.1006-7930.2019.06.012
文献标志码:
A
摘要:
风干和饱和状态下粗粒土的强度和变形特性有显著差异.为研究此差异，对两河口心墙坝堆石料风干样及饱和样进行了三轴固结排水试验，对比分析了其风干样及饱和样的强度特性、变形特性差异.试验结果表明：风干样与饱和样的峰值偏应力与围压呈显著的幂函数关系，且随着围压的增大，两者差值逐渐增大；同一围压下，风干样的内摩擦角大于饱和样，但两者的差值随着围压的增大而减小，内摩擦角差值与围压的关系可以用幂函数来描述；在相同围压下，同一轴变对应的风干样体应变及侧向应变均小于饱和样，且风干样的颗粒破碎率小于饱和样，两者的颗粒破碎率均随着围压的增大而线性增加.
Abstract:
The strength and deformation characteristics of coarse-grained soil under air-dried and saturated conditions are significantly different. The triaxial consolidation tests were carried out to study the difference between air-dried samples and saturated samples of rockfill materials in the core wall dam of the two estuary. The strength and deformation characteristics of them were compared and analyzed. The results show that there is a significant power function relationship between peak deflection stress and confining pressure of them, and the difference between them increases gradually with the increase of confining pressure. The internal friction angle of airdried sample is large than that of saturated sample, but the difference between them decreases with the increase of confining pressure. The relationship between the difference of internal friction angle and confining pressure can be described by power function. Under the same confining pressure and axial strain, the volume strain and lateral strain of the air-dried samples are smaller than those of the saturated samples. Under the same confining pressure, the particle breakage rate of air-dried samples is less than that of saturated samples, while the particle breakage rate of them increase linearly with the increasing confining pressure.

参考文献/References:

［1］黄斌,傅旭东,谭凡,等.含水率对滑带土强度及变形影响试验研究［J］.岩土力学,2012,33(9):2613-2618.

HUANG Bin, FU Xudong, TAN Fan, et al. Experimental study of relationship between water content and strength or deformation of slip soil［J］. Rock and Soil Mechanics, 2012, 33(9):2613-2618.
［2］陈东霞,龚晓南,马亢.厦门地区非饱和残积土的强度随含水量变化规律［J］.岩石力学与工程学报,2015,34(S1): 3484-3490.
CHEN Dongxia, GONG Xiaonan, MA Kang. Variation of the shear strength of Xiamen unsaturated residual soils with water content ［J］. Chinese Journal of Rock Mechanics and Engineering, 2015, 34(S1):3484-3490.
［3］保华富,屈智炯.粗粒料的湿化特性研究［J］.成都科技大学学报,1989(1):23-30.
BAO Huafu, QU Zhijiong. The study of wetting properties for coarse materials ［J］. Journal of University of Science and Technology of Chengdu, 1989(1):23-30.
［4］李鹏,李振,刘金禹.粗粒料的大型高压三轴湿化试验研究［J］.岩石力学与工程学报,2004(2):231234.\
LI Peng, LI Zhen,LIU Jinyu. Slaking test study of coarse aggregate under high triaxial stress condition ［J］. Chinese Journal of Rock Mechanics and Engineering, 2004(2): 231-234.
［5］陶庆东,何兆益,贾颖.基于大三轴试验的土石混合体强度特性与影响因素［J］.科学技术与工程,2019,19(26):310-318.
TAO Qingdong, HE Zhaoyi, JIA Ying. Strength characteristics and influencing factors of soilrock mixture based on large triaxial test ［J］. Science Technology and Engineering, 2019, 19(26):310-318.
［6］汪良峰,汪斌,陈生水,等.尾矿库筑坝土石料大型三轴试验与力学模型研究［J］.岩土工程学报,2018,40(S2):157161.
WANG Liangfeng, WANG Bin, CHEN Shengshui, et al. Largescale triaxial tests and modelling mechanical behaviors of soilrock fill materials for a mine tailings dam ［J］. Chinese Journal of Geotechnical Engineering, 2018, 40(S2):157-161.
［7］卢廷浩.土力学［M］. 第二版. 南京：河海大学出版社，2005.
LU Tinghao. Soil mechanics ［M］. 2nd ed. Nanjing: Hohai University Press. 2005.
［8］左永振,程展林,姜景山,等.粗粒料湿化变形后的抗剪强度分析［J］.岩土力学,2008,29(S1):559562.
ZUO Yongzhen, CHENG Zhanlin, JIANG Jingshan, et al. Analysis of shearing strength after wetting deformation of coarsegrained materials ［J］. Rock and Soil Mechanics, 2008, 29(S1):559-562.
［9］左元明,张文茜,沈珠江.小浪底坝石料浸水变形特性研究［C］//第一届华东岩土工程学术大会论文集：无锡:［S.l］.1990:8.
ZUO Yuanming, ZHANG Wenqian, Shen Zhujiang. Study on deformation characteristics of Xiaolangdi rockfill materials in Water［C］//Proceedings of the First East China Geotechnical Engineering Conference: Wuxi: ［S.l］.1990:8.
［10］张智,屈智炯.粗粒土湿化特性的研究［J］.成都科技大学学报,1990(5):51-56.
ZHANG Zhi, QU Zhijiong. The study of wetting properties of coarse grained soils［J］. Journal of University of Science and Technology of Chengdu, 1990(5):51-56.
［11］中华人民共和国水利部.土工试验规程: SL237-1999［S］.北京:中国水利水电出版社,1999.
Ministry of Water Rescources of the Peoples of China. Specification of soil test: SL2371999［S］.Beijing: China Water Power Press, 1999.
［12］徐志华,孙大伟,张国栋.堆石料应力-应变特性大型三轴试验研究［J］.岩土力学,2017,38(6):1565-1572.
XU Zhihua, SUN Dawei, ZHANG Guodong. Study on stress-strain behavior of rockfill using large-scale triaxial tests［J］.Rock and Soil Mechanics, 2017, 38(6):1565-1572.
［13］钱家欢，殷宗泽. 土工原理与计算［M］. 第二版. 北京：中国水利水电出版社，1996.
QIAN Jiahuan, YIN Zongze. Principle and calculation of geotechnical engineering ［M］. 2nd ed. Beijing: China Water Power Press, 1996.
［14］ MARSAL R J．Mechanical properties of rockfill ［C］//In Embankment dam engineering. Casagrand volume，New York: Wiley，1973，109-200.
［15］ EINAV I. Breakage mechanicspart I: theory ［J］. Journal of the Mechanics and Physics of Solids, 2007, 55(6): 1274-1297.
［16］姚世恩. 复杂应力路径下粗粒土在湿化作用下的颗粒破碎研究［D］.大连: 大连理工大学,2018.
YAO Shien. Study on particle breakage of coarse granular soil under wetting effect in the complex stress path ［D］. Dalian: Dalian University of Technology, 2018.

相似文献/References:

[1]刘容地,郑建国,李致远.砂砾石与混凝土接触面力学性能的试验研究[J].西安建筑科技大学学报(自然科学版),2013,45(06):834.[doi:10.15986/j.1006-7930.2013.06.014]
　LIU Rong-di,ZHENG Jian-guo,LI Zhi-yuan.Experimental research on mechanical properties of interface between concrete and gravel[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2013,45(06):834.[doi:10.15986/j.1006-7930.2013.06.014]
[2]刘凤云,邵珠山,张硕成,等.击实功对粗颗粒填料冻胀特性影响的试验研究[J].西安建筑科技大学学报(自然科学版),2018,50(06):834.[doi:10.15986/j.1006-7930.2018.06.011]
　LIU Fengyun,SHAO Zhushan,ZHANG Shuocheng,et al.Experiment study on compaction energy influence of frost heaving properties on coarse grained soil[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2018,50(06):834.[doi:10.15986/j.1006-7930.2018.06.011]
[3]高 智,魏玉峰,金磊磊.基于M-C方法的粗粒土剪切排列分布演化机理研究[J].西安建筑科技大学学报(自然科学版),2020,52(06):873.[doi:10.15986/j.1006-7930.2020.06.014 ]
　GAO Zhi,WEI Yufeng,JIN Leilei.Research on the evolution of coarse-grained soil on permutation distribution based on M-C model[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2020,52(06):873.[doi:10.15986/j.1006-7930.2020.06.014 ]

备注/Memo

备注/Memo:
收稿日期:2019-03-14修改稿日期:2019-11-20
基金项目:国家自然科学基金项目(51479052)
第一作者:陈鸽(1994-)，女，博士生，主要从事土体基本性质及本构关系研究，E-mail:834267597@qq.com
通信作者:朱俊高(1964-)，男，博士，教授、博士生导师，主要从事土体基本性质及本构关系、土石坝工程研究，E-mail: zhujungao@hhu.edu.cn
更新日期/Last Update: 2020-01-21