西安地区地裂缝带黄土动力特性试验研究

慕焕东; 邓亚虹; 彭建兵

doi:10.13544/j.cnki.jeg.2014.05.26

西安地区地裂缝带黄土动力特性试验研究

doi: 10.13544/j.cnki.jeg.2014.05.26

慕焕东^1,2,
邓亚虹^1,2,3,
彭建兵^1,2,3

1.
长安大学地质工程与测绘学院西安 710054;
2.
国土资源部岩土工程开放研究实验室西安 710054;
3.
西部矿产资源与地质工程教育部重点实验室西安 710054

基金项目:

国家自然科学基金项目（41002106，41372327），长安大学中央高校基本科研业务专项资金项目（CHD2010JC098）资助

详细信息

作者简介:
慕焕东，男，硕士研究生，主要从事岩土工程及土动力学方面的研究. Email：mhd3373@126.com

中图分类号: TU352.12;O328
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出版历程
- 收稿日期: 2014-04-20
- 修回日期: 2014-07-01
- 刊出日期: 2014-10-25

EXPERIMENTAL RESEARCH ON LOESS DYNAMIC CHARACTERISTICS AT GROUND FISSURE BELT IN XIAN AREA

1.
College of Geology Engineering and Geomatics, Chang'an University, Xi'an 710054;
2.
Open Research Laboratory of Geotechnical Engineering, Ministry of Land and Resources, Xi'an 710054;
3.
Key Laboratory of Western China Mineral Resources and Geological Engineering, Ministry of Education, Xi'an 710054

摘要

摘要: 汾渭盆地是我国乃至世界上地裂缝最为发育，灾害最为严重的地区。考虑到地裂缝灾害对场地条件的影响，尤其是对场地土体的动力特性及动力响应的影响，本文在等压固结条件下，对西安地区地裂缝带黄土进行不同围压下的固结不排水(CU)动三轴试验，获取动力学参数，在此基础上分析了地裂缝带黄土动剪切模量随动剪应变变化特征曲线以及阻尼比随动剪应变变化特征曲线，并对所获得实验曲线进行回归拟合，进而建立了地裂缝带黄土的等效黏弹性动力本构模型，为进一步分析场地土体的动力响应奠定基础。
- 地裂缝带黄土 /
- 动三轴试验 /
- 动应力-应变关系 /
- 动力响应
Abstract: The Weihe Basin can be one of the most developed areas associated with ground fissures and geo-hazards in China and even in the world. This paper considers the ground fissure disasters on the influence of site condition, especially to the site soil of the dynamic characteristics and dynamic response. Under the condition of constant pressure consolidation, the consolidated undrained dynamic triaxial tests are carried out on the loess at the Xi'an area ground fissures belt with different confining pressures. The tests result in dynamical parameters. Based on the experimental results, the change laws of dynamic shear modulus with strain relationship and damping ratio with strain relationship are analyzed. And the equivalent visco-elastic constitutive model is established, which lays the foundation for the further analysis of dynamic response of soil field.
- Ground fissure belt loess /
- Dynamic triaxial test /
- Dynamic stress and strain relations /
- Dynamic response

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参考文献(1)

[1] 王景明,等. 地裂缝及其灾害的理论与应用[M]. 西安:陕西科学技术出版社, 2000.

Wang Jingming, et al. Theory and application of ground fissure and hazard[M]. Xi'an: Shanxi Scientific Press, 2000.

[2] 彭建兵, 范文,李喜安,等. 汾渭盆地地裂缝成因研究中的若干关键问题[J]. 工程地质学报, 2007, 15 (4): 433～440.

Peng Jianbing, Fan Wen, Li Xi'an,et al. Some key questions in the formation of ground fissures in the Fen-Wei Basin[J]. Journal of Engineering Geology, 2007, 15 (4): 433～440.

[3] Leonard R J. An earth fissure in southern Arizona[J]. Journal of Geology, 1929, 37 (8): 765～774.

[4] Fletcher J E,Peterson H B. Chandler V.N. Piping [J]. Transaction-American Geophysical Union, 1954, 35 : 258～262.

[5] Holzer T L, Davis S N, Lofgren B E. Faulting caused by groundwater exrtraction in Southcentral Arizona[J]. Journal of Geological Research: Solid Earth (1978-2012), 1979, 84 (B2): 603～612.

[6] Holzer T L. Faulting caused by groundwater level declines, San, Joaquin Valley, California[J]. Water Resources Reserch,1980, 16 (6): 1065～1070.

[7] 张家明. 西安地裂缝研究[M]. 西安:西北大学出版社, 1990.

Zhang Jiaming. Research on ground fissures in Xi'an region[M]. Xi'an: Northwest University Press, 1990.

[8] 易学发. 西安市地面沉降及地裂缝成因的讨论[J]. 地震, 1984, 12 (6): 50～54.

Yi Xuefa. A discussion on the ground subsidence and the genesis of ground fissure in Xi'an city[J]. Earthquake, 1984, 12 (6): 50～54.

[9] 彭建兵, 等. 渭河盆地活动断裂与地质灾害[M]. 西安: 西北大学出版社, 1992.

Peng Jianbing, et al. Active fault and geological hazards in Weihe Basin[M]. Xi'an: Northwest University Press, 1992.

[10] 刘国昌. 西安的地裂缝[J]. 长安大学学报(地球科学版), 1986, 8 (4): 9～22.

Liu Guochang. The ground fissures in Xi'an, Shaanxi[J]. Journal of Chang'an University (Earth Science Edition), 1986, 8: (4) 9～22.

[11] 王景明. 论西安地裂缝[J]. 地震地质, 1989, 11 (3): 85～93.

Wang Jingming. Theory of Xi'an ground fissures[J]. Seismology and Geology, 1989, 11 (3):85～93.

[12] 李新生. 对西安地裂缝形成机制的几点新看法[J]. 西安地质学院学报, 1994, 16 (2): 75～80.

Li Xinsheng. Some new views of Xi'an ground fissure formation mechanism[J]. Journal of Xi'an Institute of Geology,1994, 16 (2): 75～80.

[13] 陈红旗, 黄润秋,彭建兵. 与地震相关的西安地裂事件的全过程研究[J]. 工程地质学报, 2003, 11 (4): 343～348.

Chen Hongqi, Huang Runqiu, Peng Jianbing. The whole process of Xi'an taphrogenic events related to earthquake research[J]. Journal of Engineering Geology, 2003, 11 (4): 343～348.

[14] 骆亚生, 谢定义. 黄土破坏动应力和初始动模量的一种经验估算公式[J]. 西北水资源与水工程, 2000, 11 (3): 6～10.

Luo Yasheng, Xie Dingyi. The loess damage dynamic stress and the initial estimate one experience formula of the dynamic modulus[J]. Journal of Northwest Water Resources and Water Engineering, 2000, 11 (3): 6～10.

[15] 邓亚虹,李丽,李喜安,等. 毛乌素沙漠风积沙动应力-应变关系试验研究[A]//第九届全国工程地质大会论文集[C].青岛: 科学出版社, 2012, 78～84.

Deng Yahong, Li Li, Li Xi'an, et al. Maowusu desert aeolian sand dynamic stress-strain test research[A]//Proceedings of the 9th National Conference on Engineering Geology[C]. Qingdao: Science Press, 2012, 78～84.

[16] Kondner P L. Hyperbolic stress-strain response: cohesive soils[J]. Journal of the Soil Mechanics and Foundations, ASCE, 1963, 89 (SM1): 115～143.

[17] Hardin B O,Drnevich V P. Shear modulus and damping in soil: design equations and curves[J]. Journal of the Soil Mechanics and Foundations Division, 1972, 98 (7): 667～692.

[18] Martin P,Seed H B.One dimensional dynamic ground response analysis[J]. Journal of Geotechnical Engineering, ASCE, 1982, (7): 935～952.

[19] Chen Guoxing, Liu Xuezhu. The preliminary study on dynamic characteristics of recently deposited soils in southern area of Jiangsu province, China[A]//Proceedings of the International Symposium on Innovation and Sustainability of Structures in Civil Engineering[C]. Nanjing, China, 2005, 1332～1339.

[20] 宋焱勋. 毛乌素沙漠风积砂力学特性及复合地基承载力试验研究[博士学位论文][D]. 西安:长安大学, 2011.

Song yanxun. Maowusu desert aeolian sand mechanical properties and bearing capacity of composite foundation experiments[Ph.D.Thesis]. Xi'an: Chang'an University, 2011.

[21] Seed H B, Idriss I M. Soil moduli and damping factor for dynamic response analysis[R]. Berkeley: Earthquake Engineering Research Center, University of California, 1970.

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