粗粒料湿化变形特性研究

周雄雄; 迟世春; 贾宇峰

doi:10.11779/CJGE201910020

粗粒料湿化变形特性研究 English Version

周雄雄^{1, 2},
迟世春^1,2, ,,
贾宇峰^{1, 2}

1. 大连理工大学海岸与近海工程国家重点实验室,辽宁大连 116024;
2. 大连理工大学建设工程学部水利工程学院工程抗震研究所,辽宁大连 116024

基金项目: 国家重点研发计划项目（2016YFB0201001）

详细信息

作者简介:
周雄雄(1990—),男,博士研究生,主要从事土石坝变形研究工作。E-mail:zxx3090911095@163.com。

通讯作者:
迟世春，E-mail：schchi@dlut.edu.cn

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- 文章访问数: 254
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出版历程
- 收稿日期: 2018-09-24
- 发布日期: 2019-10-24

Wetting deformation characteristics of coarse granular materials

ZHOU Xiong-xiong^{1, 2},
CHI Shi-chun^1,2, ,,
JIA Yu-feng^{1, 2}

1. State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China;
2. Institute of Earthquake Engineering, School of Hydraulic Engineering, Faculty of Infrastructure Engineering, Dalian University of Technology, Dalian 116024, China

摘要

摘要: 粗粒料作为建筑材料广泛使用于大坝、路基等变形控制要求较高的基础设施建设中,其中,使用过程中的湿化变形尤为重要。通过分析粗粒料单线法湿化试验数据发现,湿化体变与湿化轴变的比值 $k$ 、平均主应力 $p$ 和广义剪应力 $q$ 三者满足扭面关系。当 $k$ 恒定时,此扭面变为 $p$ - $q$ 平面内一条经过原点的直线。利用上述发现推导出了 $k$ 的计算公式,其形式为q/p的对数函数。利用该文提出的湿化体变与湿化轴变比值的计算方法和湿化轴变与湿化应力水平的双曲线关系,拟合了三轴湿化试验数据,发现该文给出的计算湿化变形的方法不仅能够体现湿化体变的湿缩现象,还能体现湿胀现象,而且模拟值与试验数据拟合度较高。
- 粗粒料 /
- 湿化变形 /
- 扭面关系 /
- 平均主应力 /
- 广义剪应力
Abstract: As the coarse granular materials are widely used in dams and roadbeds with high requirements for deformation control, it is critical to study the wetting deformation of the coarse granular materials. By analyzing the existing research results, a torsional plane relationship is put forward among the mean principal stress $p$ , the generalized shear stress $q$ and the ratio of wetting volumetric strain to wetting axial strain $k$ . When $k$ is constant, the torsional plane becomes a straight line through the origin in the $p$ - $q$ plane. Using the above findings, the formula for calculating k is deduced, which is in the form of logarithmic function of q/p. To illustrate its rationality and practicability, some triaxial wetting tests are numerically simulated using the proposed relationships. The results show that the law and the proposed method for calculating the wetting strain of coarse granular materials are reasonable and practical.
- coarse granular material /
- wetting deformation /
- torsional plane relationship /
- mean principal stress /
- generalized shear stress

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参考文献(24)

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施引文献(16)

期刊类型引用(9)

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3.	张宏洋，马聪，刘建龙，孙亚东，宋子屹，丁泽霖，韩鹏举. 土石坝粗粒料的湿化动力特性试验研究. 水电能源科学. 2023(05): 63-66+75 . 百度学术
4.	叶晓峰，周伟，马刚，郭喆. 基于反演参数的心墙堆石坝坝顶裂缝成因研究. 武汉大学学报(工学版). 2022(03): 220-228 . 百度学术
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7.	姜燊燊，迟世春. 粗粒料的湿化变形三轴试验研究. 水利与建筑工程学报. 2020(02): 137-141+163 . 百度学术
8.	殷坤垚，杜秦文，刘辉. 软岩填料湿化变形规律. 科学技术与工程. 2020(13): 5363-5368 . 百度学术
9.	杨培浩，张爱军. 粗粒土的湿化变形规律研究. 水利水电技术. 2020(07): 132-138 . 百度学术