随机地震荷载作用下黄土震陷的影响因素研究

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (322 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract Certain earthquake wave with 10% exceeding probability in the following 50 years of the field is input as vibration wave to conduct the dynamic test firstly. The residual dynamic strain calculation expression is amended based on the test results. According to repeating verifications of a great many groups of test data，it is shown that there is good correlation between the amended expression and test results. Secondly，Through controlling the correlative parameters of power spectrum and envelope function of artificially synthesized seismic histories，earthquake waves with different predominant frequencies and effective times are obtained to control the axial stress of dynamic triaxial test. The effects of predominant frequency and effective time on the residual strain of loess are studied. The study results show that the sample suffering the earthquake acceleration wave with higher predominant frequency and longer effective time indicate larger residual strain under the same dynamic stress. In addition，moisture content and consolidation ratio have greater effect on the residual strain of loess. Under the same dynamic stress，the sample with higher moisture content and suffering higher consolidation ratio would produce more seismic residual strain.

Key words： soil mechanics stochastic seismic load seismic subsidence of loess residual strain predominant frequency effective time

Received: 15 April 2011

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors

Cite this article:

URL:

https://rockmech.whrsm.ac.cn/EN/Y2011/V30/I9/1924

[1] МЕДВЕДЕВ C B. 地震小区划[M]. 黄秀铭译. 北京：地震出版社，1981：93–94.(МЕДВЕДЕВ C B. Seismic regionalization[M]. Translated by HUANG Xiuming. Beijing：Earthquake Press，1981：93–94.(in Chinese)) [2] 陈永明，石玉成，徐晖平，等. 1995年永登地震黄土震陷变形特征及其形成机制[J]. 西北地震学报，2000，22(4)：465–470.(CHEN Yongming，SHI Yucheng，XU Huiping，et al. Deformation characteristic of seismic subsidence and its formation mechanism of loess induced by the Yongdeng earthquake in 1995[J]. Northwestern Seismological Journal，2000，22(4)：465–470.(in Chinese)) [3] 张冬丽，王兰民. 1995年永登地震山体变形计算机模拟与机制分析[J]. 西北地震学报，2003，25(1)：77–81.(ZHANG Donglin，WANG Lanmin. Computer-aided analogue and mechanism analysis of deformation of hill ground induced by Yongdeng earthquake in 1995[J]. Northwestern Seismological Journal，2003，25(1)：77–81.(in Chinese)) [4] 张振中，张冬丽，刘红玫. 黄土震陷灾害典型震例的综合研究[J]. 西北地震学报，2005，27(1)：36–42.(ZHANG Zhenzhong，ZHANG Dongli，LIU Hongmei. Comprehensive study on seismic subsidence of loess under earthquake[J]. Northwestern Seismological Journal，2005，27(1)：36–42.(in Chinese)) [5] 巫志辉，方彦. 原状黄土在增湿时的震陷特性[C]// 中国振动工程学会第三届土动力学会议论文集. 上海：同济大学出版社，1990：285–290.(WU Zhihui，FANG Yan. Characteristic of intact loess seismic subsidence in environment of increasing moisture content[C]// Proceedings of the 3rd Soil Dynamics Congress of China Vibration Engineering Society. Shanghai：Tongji University Press，1990：285–290.(in Chinese)) [6] 何光，朱鸿博. 黄土震陷研究[J]. 岩土工程学报，1990，12(6)：99–103.(HE Guang，ZHU Hongbo. Study on the loess seismic subsidence[J]. Chinese Jounal of Geotechnical Engineering，1990，12(6)：99–103.(in Chinese)) [7] 翁效林，熊元克，裴凯. 黄土震陷变形特征的离心模型试验研究[J]. 矿物学报，2006，26(4)：460–464.(WENG Xiaolin，XIONG Yuanke，PEI Kai. Study on loess seismic subsidence deformation characteristics by centrifuge model test[J]. Acta Mineralogica Sinica，2006，26(4)：460–464.(in Chinese)) [8] 李兰，王兰民. 含黏粒量黄土抗震陷性能的试验研究[J]. 水文地质工程地质，2007，34(3)：63–66.(LI Lan，WANG Lanmin. Experimental study of the subsidence characteristics of clayey loess[J]. Hydrogeology and Engineering Geology，2007，34(3)：63–66.(in Chinese)) [9] 骆亚生，谢定义，董为民，等. 不同地区黄土振陷变形特性的对比分析[J]. 陕西水利发电，2001，17(1)：4–7.(LUO Yasheng，XIE Dingyi，DONG Weimin，et al. Comparative analysis of vibration deformation behavior of the loess from different regions[J]. Journal of Shaanxi Water Power，2001，17(1)：4–7.(in Chinese)) [10] 贾革续，孔宪京. 粗粒土动残余变形特性的试验研究[J]. 岩土工程学报，2004，26(1)：26–30.(JIA Gexu，KONG Xianjing. Study on residual deformation characteristics of coarse-grained soils[J]. Chinese Jounal of Geotechnical Engineering，2004，26(1)：26–30.(in Chinese)) [11] 袁晓铭，孙锐，孟上九. 土体地震大变形分析中Seed有效循环次数方法的局限性[J]. 岩土工程学报，2004，26(2)：207–211. (YUAN Xiaoming，SUN Yue，MENG Shangjiu. Limitation of the Seed?s method of significant cyclic number in analyzing large deformation of soils during earthquake[J]. Chinese Jounal of Geotechnical Engineering，2004，26(2)：207–211.(in Chinese)) [12] 袁晓铭，孟上九，孙锐. 随机地震荷载下黏性土残余应变的半经验计算公式[J]. 水利学报，2004，(11)：62–67.(YUAN Xiaoming，MENG Shangjiu，SUN Yue. Semi-empirical formula for evaluating the residual strain of cohesive soils under irregular earthquake loading[J]. Journal of Hydraulic Engineering，2004，(11)：62–67.(in Chinese)) [13] 石玉成，李兰. 黄土震陷变形特征的细观分析[J]. 岩石力学与工程学报，2003，22(增2)：2 829–2 833.(SHI Yucheng，LI Lan. Microanalysis of seismic subsidence characteristics of loess[J]. Chinese Journal of Rock Mechanics and Engineering，2003，22(Supp.2)：2 829–2 833.(in Chinese)) [14] 刘红玫，张振中. 永登震后黄土微结构特征研究[J]. 西北地震学报，2005，27(2)：174–177.(LIU Hongmei，ZHANG Zhenzhong. Study on microstructure characteristics of loess after Yongdeng earthquake[J]. Northwestern Seismological Journal，2005，27(2)：174–177.(in Chinese)) [15] 李兰，王兰民，王峻. 永登5.8级地震极震区黄土微结构孔隙性的定量研究[J]. 地震研究，2005，28(3)：282–287.(LI Lan，WANG Lanmin，WANG Jun. Quantitative research on the porosity of loess in the Meizoseismal Area of the Yongdeng Ms5.8 earthquake[J]. Journal of Seismological Research，2005，28(3)：282–287.(in Chinese)) [16] 邓津，王兰民，张振中. 黄土显微结构特征与震陷性[J]. 岩土工程学报，2007，29(4)：542–548.(DENG Jin，WANG Lanmin，ZHANG Zhenzhong. Microstructure characteristics and seismic subsidence of loess[J]. Chinese Journal of Geotechnical Engineering，2007，29(4)：542–548.(in Chinese)) [17] 王兰民，邓津，黄媛. 黄土震陷性的微观结构量化分析[J]. 岩石力学与工程学报，2007，26(1)：3 025–3 031.(WANG Lanmin，DENG Jin，HUANG Yuan. Quantitative analysis of microstructure of loess seismic subsidence[J]. Chinese Journal of Rock Mechanics and Engineering，2007，26(1)：3 025–3 031.(in Chinese)) [18] 王兰民，袁中夏，王峻，等. 干密度对击实黄土震陷性影响的试验研究[J]. 地震工程与振动，2000，20(1)：87–92.(WANG Lanmin，YUAN Zhongxia，WANG Jun，et al. Laboratory study of effect of dry density on seismic subsidence of compacted loess[J]. Earthquake Engineering and Engineering Vibration，2000，20(1)：87–92.(in Chinese)) [19] 陈永明，王兰民，刘红玫. 剪切波速预测黄土场地震陷量的方法[J]. 岩石力学与工程学报，2003，22(增2)：2 834–2 839.(CHEN Yongming，WANG Lanmin，LIU Hongmei. Prediction method of seismic subsidence of loess ground with shear wave velocity[J]. Chinese Journal of Rock Mechanics and Engineering，2003，22(Supp.2)：2 834–2 839.(in Chinese)) [20] TANIGUCHI E，WHITMAN R V，MARR W A. Prediction of earthquake induced deformation of earth dams[J]. Soils and Foundations，1983，23(4)：126–132. [21] 邓龙胜. 强震作用下黄土边坡的动力响应机制和动力稳定性研究[博士学位论文][D]. 西安：长安大学，2010.(DENG Longsheng. Study on the dynamic response mechanism and dynamic stability of loess slope in environment of strong earthquake[Ph. D. Thesis][D]. Xi?an：Chang?an University，2010.(in Chinese)) [22] 张振中. 黄土地震灾害预测[M]. 北京：地震出版社，1999：58–61.(ZHANG Zhenzhong. Seismic disaster forecasting of loess[M]. Beijing：Earthquake Press，1999：58–61.(in Chinese))