[1]孙昱,张炜超,任浩,等.黄土动力塑性变形特性的试验研究及定量分析[J].地震工程与工程振动,2019,39(04):139-147.[doi:10.13197/j.eeev.2019.04.139.suny.014]
 SUN Yu,ZHANG Weichao,REN Hao,et al.Experimental research and quantitative analysis of dynamic plastic deformation characteristics of loess[J].EARTHQUAKE ENGINEERING AND ENGINEERING DYNAMICS,2019,39(04):139-147.[doi:10.13197/j.eeev.2019.04.139.suny.014]
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黄土动力塑性变形特性的试验研究及定量分析
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《地震工程与工程振动》[ISSN:/CN:]

卷:
39
期数:
2019年04
页码:
139-147
栏目:
论文
出版日期:
2019-09-30

文章信息/Info

Title:
Experimental research and quantitative analysis of dynamic plastic deformation characteristics of loess
作者:
孙昱1 张炜超2 任浩2 孙军杰3 张创军1
1. 陕西省地震局 乾陵地震台, 陕西 咸阳 713300;
2. 陕西省地震局 应急中心, 陕西 西安 710068;
3. 中国地震局 兰州地震研究所, 甘肃 兰州 730000
Author(s):
SUN Yu1 ZHANG Weichao2 REN Hao2 SUN Junjie3 ZHANG Chuangjun1
1. Qianling Seismostation, Earthquake Administration of Shanxi Province, Xianyang 713300, China;
2. The Emergency Center, Earthquake Administration of Shanxi Province, Xi’an 710068, China;
3. Lanzhou Institute of Seismology, China Earthquake Administration, Lanzhou 730000, China
关键词:
非饱和黄土动荷载残余应变动三轴试验
Keywords:
unsaturated loessdynamic loadresidual straindynamic triaxial tests
分类号:
TU411;TU435;P315.9
DOI:
10.13197/j.eeev.2019.04.139.suny.014
摘要:
根据室内动三轴试验结果,得到了黄土的含水量、孔隙比、试验振次、固结应力比等关键参量对黄土震陷变形的影响特性;通过对黄土震陷的时程曲线进行分析,描绘了黄土在发生塑性变形过程时的发展规律;在原状非饱和黄土的残余变形定量研究中对黄土震陷的几个基本参数及其主要影响因素进行了分析,实现了不同含水量下原状非饱和黄土震陷残余应变数学模型的建立,并对黄土体塑性破坏的力学机制进行了分析。
Abstract:
According to the results of indoor dynamic triaxial tests, the influence of key parameters such as water content, void ratio, trial vibration times and consolidation stress ratio on loess seismic subsidence is obtained. In the paper, by the analysis on the time history curves of loess subsidence, the development laws of loess in the course of plastic deformation is depicted; several basic parameters and their main influencing factors of loess subsidence are analyzed in the quantitative study of residual deformation of intact unsaturated loess. As a result, we realize the establishmentof the mathematical model which can describe the residual strain of intact unsaturated loess subsidence with different water content, and analyze the mechanical mechanism of plastic damage of loess.

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相似文献/References:

[1]王强,邵生俊,邵帅,等.黄土的动力损伤耗能机制和变形特性的研究[J].地震工程与工程振动,2015,35(06):160.[doi:10.13197/j.eeev.2015.06.160.wangq.022]
 WANG Qiang,SHAO Shengjun,SHAO Shuai,et al.Deformation behaviors and energy dissipation mechanism of loess under dynamic damage[J].EARTHQUAKE ENGINEERING AND ENGINEERING DYNAMICS,2015,35(04):160.[doi:10.13197/j.eeev.2015.06.160.wangq.022]

备注/Memo

备注/Memo:
收稿日期:2018-11-1;改回日期:2019-5-20。
基金项目:国家自然科学基金项目(51779234);中国地震局地震应急青年重点任务(CEAEDEM201915);中国地震局监测、预测、科研三结合课题(CEA-JC/3JH-172704)
作者简介:孙昱(1989-),女,工程师,硕士研究生,主要从事黄土动力学特性及地震监测预报方面的研究.E-mail:stusy0904@163.com
更新日期/Last Update: 1900-01-01