堆石料广义塑性模型研究

卞士海; 李国英; 魏匡民; 周健

doi:10.11779/CJGE201706004

堆石料广义塑性模型研究 English Version

卞士海^1,2,3,
李国英^2,3, ,,
魏匡民^2,3,
周健¹

1. 同济大学地下建筑与工程系,上海 200092;
2.南京水利科学研究院岩土工程研究所,江苏南京 210024;
3. 水利部土石坝破坏机理与防控技术重点试验室,江苏南京 210024

基金项目: 水利部公益性行业专项经费项目（201501035）; 国家自然科学基金青年科学基金项目（51509163）

详细信息

作者简介:
卞士海(1987- ),男,博士研究生,主要从事粗粒土本构关系研究。E-mail: bsh2013@tongji.edu.cn。

通讯作者:
李国英，E-mail：gyli@nhri.cn

中图分类号: TV641
计量
- 文章访问数: 0242
- HTML全文浏览量: 0
- PDF下载量: 0191
出版历程
- 收稿日期: 2016-06-13
- 发布日期: 2017-06-24

Generalized plasticity model for rockfill materials

1. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China;
2. Geotechnical Engineering Department, Nanjing Hydraulic Research Institute, Nanjing 210024, China;
3. Key Laboratory of Earth-Rock Dam Failure Mechanism and Safety Control Techniques, Ministry of Water Resources, Nanjing 210024, China

摘要

摘要: 通过分析试验资料和以往研究成果,修正了堆石料不同围压下剪切过程峰值应力比表达式,论述了塑性模量对平均应力的依赖性。基于广义塑性理论框架,借鉴Lade-Duncan单屈服面模型中引入塑性功定义硬化规律的思路,对塑性模量进行了修正,提出了一种改进的广义塑性模型。为了验证改进方法的合理性,塑性模量改进方法被应用于刘恩龙模型,同时使用提出的修正广义塑性模型预测了另外两种堆石料试验。不同围压下模型的预测结果与试验结果吻合较好,表明修正的模型可以较好地预测堆石料的应力-应变特性。
- 广义塑性模型 /
- 塑性功 /
- 塑性模量 /
- 三轴试验 /
- 模型验证
Abstract: Based on the experimental results and previous studies, the stress ratio at the failure (M_f) under different confining pressures is modified, and the pressure dependency of plastic modulus is discussed. Considering the idea that the hardening rule of Lade-Duncan single yield surface model is defined by introducing plastic work to yield surface expression, the plastic modulus is modified using the plastic work within the framework of the generalized plasticity theory, and a modified P-Z model is proposed. To check the validity of the improved method, the modified approach is applied to the constitutive model by Liu et al., and the modified P-Z model is employed to simulate the other two triaxial tests on rockfill materials. Satisfactory agreement between the numerical and experimental results under different confining pressures confirms the capability of the modified model in improving the prediction of stress-strain behaviour of rockfill materials.
- generalized plasticity model /
- plastic work /
- plastic modulus /
- triaxial test /
- model validation

HTML全文

参考文献(25)

[1]	ZIENKIEWICZ O C, MROZ Z. Generalized plasticity formulation and applications to geomechanics[C]// Mechanics of Engineering Materials. New York, 1984: 655-679.
[2]	PASTOR M, ZIENKIEWICZ O C. A generalized plasticity, hierarchial model for sand under monotonic and cyclic loading[C]// Numerical Methods in Geomechanics. London, 1986: 131-150.
[3]	PASTOR M, ZIENKIEWICZ O C, CHAN A H C. Generalized plasticity and the modeling of soil behavior[J]. International Journal for Numerical and Analytical Methods in Geomechanics, 1990, 14: 151-190.
[4]	邹德高, 徐斌, 孔宪京, 等. 基于广义塑性模型的高面板堆石坝静、动力分析[J]. 水力发电学报, 2011, 30(6): 109-116. (ZOU De-gao, XU Bin, KONG Xian-jing, et al. Static and dynamic analysis of high concrete-faced rockfill dam based on generalized plastic model[J]. Journal of Hydroelectric Engineering, 2011, 30(6): 109-116. (in Chinese))
[5]	LING H I, LIU H. Pressure-level dependency and densification behavior of sand through a generalized plasticity model[J]. J Eng Mech, 2003, 129(8): 851-860.
[6]	LING H I, YANG S. Unified sand model based on the critical state and generalized plasticity[J]. J Eng Mech, 2006, 132(12): 1380-1391.
[7]	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))
[8]	王占军, 陈生水, 傅中志. 堆石料剪胀特性与广义塑性模型[J]. 岩土力学, 2015, 36(7): 1931-1938. (WANG Zhan-jun, CHEN Sheng-shui, FU Zhong-zhi. Dilatancy behaviors and generalized plasticity constitutive model of rockfill materials[J]. Rock and Soil Mechanics, 2015, 36(7): 1931-1938. (in Chinese))
[9]	朱晟, 魏匡民, 林道通. 筑坝土石料的统一广义塑性本构模[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))
[10]	WEI K M, ZHU S. A generalized plasticity model to predict behaviors of the concrete-faced rock-fill dam under complex loading conditions[J]. European Journal of Environmental and Civil Engineering, 2013, 17(7): 579-597.
[11]	NAKAI T. An isotropic hardening elastoplastic model considering the stress path dependency in three-dimensional stresses[J]. Soils and Foundations, 1989, 29: 119-139.
[12]	LIU H, ZOU D. An associated generalized plasticity framework for modeling gravelly soils considering particle breakage[J]. Journal of Engineering Mechanics (ASCE), 2013, 139(5): 606-615.
[13]	LIU H, ZOU D, LIU J. Constitutive modeling of dense gravelly soils subjected to cyclic loading[J]. International Journal for Numerical and Analytical Methods in Geomechanics, 2014, 38: 1503-1518.
[14]	刘恩龙, 陈生水, 李国英, 等. 堆石料的临界状态与考虑颗粒破碎的本构模型[J]. 岩土力学, 2011, 32(增刊2): 148-154. (LIU En-long, CHEN Sheng-shui, LI Guo-ying, et al. Critical state of rockfill materials and a constitutive model considering grain crushing[J]. Rock and Soil Mechanics, 2011, 32(S2): 148-154. (in Chinese))
[15]	XIAO Y, LIU H, CHEN Y, et al. Testing and modeling of the state-dependent behaviors of rockfill material[J]. Comput Geotech, 2014, 61: 153-165.
[16]	XIAO Y, LIU H, CHEN Y, et al. State-dependent constitutive model for rockfill materials[J]. Int J Geomech, 2015, 04014075.
[17]	LI X S, DAFALIAS Y F. Dilatancy for cohesionless soils[J]. Géotechnique, 2000, 50(4): 449-60.
[18]	姚仰平, 万征, 陈生水. 考虑颗粒破碎的动力UH 模型[J]. 岩土工程学报, 2011, 33(7): 1036-1044. (YAO Yang-ping, WAN Zheng, CHEN Sheng-shui. Dynamic UH model considering particle crushing[J]. Chinese Journal of Geotechnical Engineering, 2011, 33(7): 1036-1044. (in Chinese))
[19]	YAO Y P, YAMAMOTO H, WANG N D. Constitutive model considering sand crushing[J]. Soils and Foundations, 2008, 48(4): 603-608.
[20]	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))
[21]	YAO Y P, SUN D A, MATSUOKA H. A unified constitutive model for both clay and sand with hardening parameter independent on stress path[J]. Computers and Geotechnics, 2008, 35: 210-222.
[22]	邹德高, 付猛, 刘京茂, 等. 粗粒料广义塑性模型对不同应力路径适应性研究[J]. 大连理工大学学报, 2013, 53(5): 702-709. (ZOU De-gao, FU Meng, LIU Jing-mao, et al. Study of adaptability of generalized plastic model of coarse grained soil under various stress paths[J]. Journal of Dalian University of Technology, 2013, 53(5): 702-709. (in Chinese))
[23]	LADE P V, DUNCAN J M. Elastoplastic stress-strain theory for cohesionless soil[J]. Journal of the Geotechnical Engineering Division, 1975, 101(10): 1037-1053.
[24]	杨光, 孙逊, 于玉贞, 等. 不同应力路径下粗粒料力学特性试验研究[J]. 岩土力学, 2010, 31(4): 1118-1122. (YANG Guang, SUN Xun, YU Yu-zhen, et al. Experimental study of mechanical behavior of a coarse-grained material under various stress paths[J]. Rock and Soil Mechanics, 2010, 31(4): 1118-1122. (in Chinese))
[25]	朱晟, 王永明, 胡祥群. 免疫遗传算法在土石坝筑坝粗粒料本构模型参数反演中的应用研究[J]. 岩土力学, 2010, 31(3): 961-966. (ZHU Sheng, WANG Yong-ming, HU Xiang-qun. Application of immune genetic algorithm to back analysis for parameters in model of rockfill dam coarse grain materials[J]. Rock and Soil Mechanics, 2010, 31(3): 961-966. (in Chinese))

施引文献

资源附件(0)

计量

文章访问数:
HTML全文浏览量: 0
PDF下载量:
被引次数: 0

堆石料广义塑性模型研究 English Version

作者简介: 卞士海(1987- ),男,博士研究生,主要从事粗粒土本构关系研究。E-mail: bsh2013@tongji.edu.cn。

通讯作者: 李国英，E-mail：gyli@nhri.cn

计量

出版历程

Generalized plasticity model for rockfill materials

计量

出版历程

目录

作者简介:
卞士海(1987- ),男,博士研究生,主要从事粗粒土本构关系研究。E-mail: bsh2013@tongji.edu.cn。

通讯作者:
李国英，E-mail：gyli@nhri.cn