基于状态参数的筑坝粗粒土本构模型

魏匡民; 陈生水; 李国英; 傅中志

doi:10.11779/CJGE201604009

基于状态参数的筑坝粗粒土本构模型 English Version

魏匡民^1,2,
陈生水^1,2,
李国英^1,2,
傅中志^1,2

1.南京水利科学研究院岩土工程研究所，江苏南京210024;
2.水利部土石坝破坏机理与防控技术重点实验室，江苏南京210029

基金项目: 水利部公益性行业专项经费项目（201501035）; 国家自然科学基金重大研究计划项目（91215301）; 中国博士后科学基金项目（2015M571777）; 国家自然科学基金青年科学基金项目（51509163）

详细信息

作者简介:
魏匡民(1985- ),男,博士,南京水利科学研究院博士后,主要从事土石材料本构关系与数值计算等方面的研究工作。E-mail: weikuangming2341@163.com。

中图分类号: TU43；TV641
计量
- 文章访问数: 0360
- HTML全文浏览量: 0
- PDF下载量: 0365
出版历程
- 修回日期: 2015-03-21
- 发布日期: 2016-04-24

Constitutive model for coarse-grained dam materials considering state parameter

1. Geotechnical Engineering Department, Nanjing Hydraulic Research Institute, Nanjing 210024, China;
2. Key Laboratory of Failure Mechanism and Safety Control Techniques of Earth-Rock Dam of the Ministry of Water Resources, Nanjing 210029, China

摘要

摘要: 粗粒土的应力应变关系与其密实度有着密切的关系。当前常用的粗粒土本构模型无法考虑密实度对其力学行为的影响,在粗粒土三轴试验基础上建议了一个基于状态参数的粗粒土双屈服面模型,推导了其应力应变表达式。该模型能够反映不同初始孔隙比条件下粗粒土的峰值强度、剪胀性、应变硬化或软化规律。通过与多组粗粒土三轴试验结果比较,验证了模型的适应性。
- 粗粒料 /
- 本构模型 /
- 状态参数 /
- 堆石坝
Abstract: The stress-strain relationship of coarse-grained soils is closely related to soil density. The regular constitutive model cannot consider the effect of initial void ratio on mechanical behaviors of coarse-grained soils. In this paper, a two-yield-surface model is proposed for coarse-grained soils based on triaxial tests. The two-yield-surface model using a state parameter so that can reflect the influence of soil density on the peak stress ratio, dilatancy rule, strain hardening or softening rule in shearing of coarse-grained soils. The stress-strain expressions of this model were also deduced. Several kind of coarse-grained soils test results were used to verify the adaptability of the proposed model, results showed that the model predictions are consistent with test results.
- coarse-grained soil /
- constitutive model /
- state parameter /
- rockfill dam

HTML全文

参考文献(24)

[1]	陈生水, 傅中志, 韩华强. 一个考虑颗粒破碎的堆石料弹塑性本构模型[J]. 岩土工程学报, 2011, 33(10): 1489-1495. (CHEN Sheng-shui, FU Zhong-zhi, HAN Hua-qiang. An elastoplastic model for rockfill materials considering particle breakage[J]. Chinese Journal of Geotechnical Engineering, 2011, 33(10): 1489-1495. (in Chinese))
[2]	OLDECOP L A, ALONSO E E. A model for rockfill compressibility[J]. Géotechnique, 2001, 51(2): 127-140.
[3]	姚仰平, 黄冠, 王乃东. 堆石料的应力-应变特性及其三维破碎本构模型[J]. 工业建筑, 2011, 41(9): 12-17. (YAO Yang-ping, HUANG Guan, Wang Nai-dong. Stress-strain characteristic and three-dimensional constitutive model of rockfill considering crushing[J]. Industrial Construction, 2011, 41(9): 12-17. (in Chinese))
[4]	WANG Z, DAFALIAS Y F, LI X. State pressure index for modeling sand behavior[J]. Journal of Geotechnical and Geoenvironmental Engineering, 2002, 128(6): 511-519.
[5]	JEFFERIES M G. Nor-Sand: A simple critical state model for sand[J]. Géotechnique, 1993, 43(1): 91-103.
[6]	WU W, BAUER E, KOLYMBAS D. Hypoplastic constitutive model with critical state for granular materials[J]. Mechanics of Materials, 1996, 23(1): 45-69.
[7]	LING H I, LIU H. Pressure-level dependency and densification behavior of sand through generalized plasticity model[J]. Journal of Engineering Mechanics, 2003, 129(8): 851-860.
[8]	LING H I, YANG S. Unified sand model based on the critical state and generalized plasticity[J]. Journal of Engineering Mechanics, 2006, 132(12): 1380-1391.
[9]	丁树云, 蔡正银, 凌华. 堆石料的强度与变形特性及临界状态研究[J]. 岩土工程学报, 2010: 248-252. (DING Shu-yun, CAI Zheng-yin, LING Hua. Strength and deformation characteristics and critical state of rock fill [J]. Chinese Journal of Geotechnical Engineering, 2010, 32(2): 248-252. (in Chinese))
[10]	刘恩龙, 覃燕林, 陈生水. 堆石料的临界状态探讨[J]. 水利学报, 2012, 43(5): 505-511. (LIU En-long, TIAN Yan-lin, Chen sheng-shui. Investigation on critical state of rockfill materials[J]. Journal of Hydraulic Engineering, 2012, 43(5): 505-511. (in Chinese))
[11]	XIAO Y, LIU H, CHEN Y. State-dependent constitutive model for rockfill materials[J]. International Journal of Geomechanics, 2014, 15(5): 1-15.
[12]	DAFALIAS Y F, MANZARI M T, DAFALIAS Y F. A critical state two-surface plasticity model for sands[J]. Géotechnique, 1997, 47(2): 255-272.
[13]	贾华. 粗粒土加载与回弹特性试验及邓肯模型适用性研究[D]. 南京: 河海大学. 2009. (JIA Hua. Study of loading and unloading properties of coarse-grained soils and adaptability of Duncan-Chang model[D]. Nanjing: Hohai University, 2009. (in Chinese))
[14]	程展林, 吴良平,丁红顺. 粗粒土组构之颗粒运动研究[J]. 岩土力学, 2007(增刊1): 29-33. (CHENG Zhan-lin, WU Liang-ping, DING Hong-shun. Research on movement of particle of fabric of granular material[J]. Rock and Soil Mechanics, 2007(S1): 29-33. (in Chinese))
[15]	刘映晶, 王建华, 尹振宇. 考虑级配效应的粒状材料本构模拟[J]. 岩土工程学报, 2015, 37(2): 299-305. (LIU Ying-jing, WANG Jian-hua, YIN Zhen-yu. Constitutive modeling for granular materials considering grading effect[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(2): 299-305. (in Chinese))
[16]	孙海忠, 黄茂松. 考虑颗粒破碎的粗粒土临界状态弹塑性本构模型[J]. 岩土工程学报, 2010, 32(8): 1284-1290. (SUN Hai-zhong, HUANG Mao-song. Critical state elasto-plastic model for coarse granular aggregates incorporating particle breakage[J]. Chinese Journal of Geotechnical Engineering, 2010, 32(8): 1284-1290. (in Chinese))
[17]	JAN Y Y. A critical state plasticity model for granular soils[D]. West Lafayette: Purdue University, 1997.
[18]	LI X S, DAFALIAS Y F. Dilatancy for cohesionless soils[J]. Géotechnique, 2001, 50(4): 729-730.
[19]	WAN R G, GUO P J. A simple constitutive model for granular soils: modified stress-dilatancy approach[J]. Computers and Geotechnics, 1998, 22(2): 109-133.
[20]	PIETRUSZCZAK S, STOLLE D F E. Modeling of sand behavior under earthquake excitation[J]. International Journal for Numerical and Analytical Method in Geomechanics, 1987, 11(3): 221-240.
[21]	ROWE P W. The stress-dilatancy relation for static equilibrium of an assembly of particles in contact[J]. Deviatoric Stress, 1962, 269(1339): 500-527.
[22]	王占军, 陈生水, 傅中志. 堆石料流变的黏弹塑性本构模型研究[J]. 岩土工程学报, 2014, 36(12): 2188-2194. (WANG Zhan-jun, CHEN Shen-shui, FU Zhong-zhi. Viscoelastic- plastic constitutive model for creep deformation of rockfill materials[J]. Chinese Journal of Geotechnical Engineering, 2014, 36(12): 2188-2194. (in Chinese))
[23]	BAUER E, FU Z, LIU S. Influence of pressure and density on the rheological properties of rockfills[J]. Frontiers of Structural & Civil Engineering, 2012, 6(1): 25-34.
[24]	朱晟, 魏匡民, 林道通. 筑坝土石料的统一广义塑性本构模型[J]. 岩土工程学报, 2014, 36(8): 1394-1399. (ZHU Sheng, WEI Kuang-min, LIN Dao-tong. Generalized plasticity model for soil and coarse-grained dam materials[J]. Chinese Journal of Geotechnical Engineering, 2014, 36(8): 1394-1399. (in Chinese))