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2016 | 23 | Special Issue S1 |
Tytuł artykułu

Ground liquefaction and deformation analysis of breakwater structures under earthquakes

Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Ground liquefaction and deformation is one of the important causes that damage engineering structures. Chinese current code for seismic design of breakwater is based on the single-level seismic design method as well as code for port and water-way engineering. However, this code can not exactly reflect the seismic performance of breakwater structures which experience different seismic intensities. In this paper, the author used a finite difference software, namely, FLAC3D, to analyze the state and compute seismic responses of breakwater structure. The breakwater foundation’s pore pressure ratio and displacement due to different earthquake have been studied. And the result show that: Smaller earthquakes have little influence on serviceability of the foundation, and severe earthquakes can liquefy some parts of the foundation; In the latter case , obvious changes of pores and foundation displaces can be found. Particularly, when seismic peak acceleration reachs 0.2g, Liquefaction appears in the foundation and mainly concentrated in the upper right side of the structure. In addition, the survey of ultra-hole pressure and displacement values of sand layers of the breakwater, manifests when the ultra pore pressure near 1.0, displacement and overturning structure is relatively large, resulting in varying degrees of damage to the structure. This paper’s research can provide theoretical and designable reference for similar engineering structures
Słowa kluczowe
Wydawca
-
Rocznik
Tom
23
Opis fizyczny
p.109-114,fig.,ref.
Twórcy
autor
  • Civil Engineering Technology Research and Development Center, Dalian University, Dalian, 116622, China
autor
  • Civil Engineering Technology Research and Development Center, Dalian University, Dalian, 116622, China
autor
  • Civil Engineering Technology Research and Development Center, Dalian University, Dalian, 116622, China
autor
  • Civil Engineering Technology Research and Development Center, Dalian University, Dalian, 116622, China
  • Faculty of Science and Natural Resources, University Malaysia Sabah, 88400 Kota Kinabalu Sabah, Malaysia
Bibliografia
  • 1. LU Xiaobin, TAN Qingming, WANG Shuyun, etal. Saturated Sand Progress[J]. Advances in Mechanics. 2004,34(1):87-100.(in Chinese)
  • 2. SEEDHB, BOOKERR. Stabilization of potentially liquefied sand deposits using gravel drains [J].Journal of Geotechnical Engineering Div JCED,1976,102(07):1-15.
  • 3. FANG Yun, TOWHATAI, GHALANDARZADEHA, et al. Mechanism of deformation and failure of gravitytype quay walls under earthquake liquefaction[J]. Earth Science-Journal of China University of Geosciences,2001,26(4):415-418.(in Chinese)
  • 4. MA SHUO,LUO QI. Japan’s Kobe earthquake damage harbor pier river embankment and Lessons[J]. Disaster, 1998,13(4):47-50(in Chinese)
  • 5. WANG Liyan, JIANG Pengpeng, LIU Hanlong. Sandy foundation breakwater seismic residual deformation mechanism and liquefaction prediction method[J].Chinese Journal of Rock and Soil Mechanics,2010,31(11).3556-3562. (in Chinese)
  • 6. JTS146 - 2012,Code of earthquake resistant design for water transport engineering[S].(in Chinese)
  • 7. HAN SHI,GONG Jinxin, ZHANG Yanqing. Gravity pier foundation under earthquake liquefaction and deformation[J].Hydro-science and Engineering. 2013,8,(4):45-54. (in Chinese)
  • 8. CHEN Yumin, XU Dingping. FLAC/FLAC3D Foundation and project examples[M].Peking: China Water Power Press,2008.
  • 9. BYRNEPM, PARKSS. Seismic liquefaction: centrifuge and numerical modeling[J].Third International Symposium on FLAC and FLAC3D Numerical Modeling in Geomechanics, Ontario:2003.
  • 10. GB50011 - 2010, Seismic Design of Buildings [S].(GB500112010, Code for seismic design of buildings[S]. (in Chinese)
  • 11. International Navigation Association Seismic design guide lines for port structures[M].Nether- lands Balkema Publishers,2001.
  • 12. Zhao jie,wang gui xuan,zheng yang,A nuclear power plant water diversion dam dynamic response and stability analysis[J].Journal of Disaster Prevention and Mitigation Engineering,2013,33(4):412-417.
  • 13. LIU Hanlong, IAI S, ICHII K. Seismic response analysis of large-size caisson quay wall [J].Chinese Journal of Geotechnical Engineering, 1998, 20(2) : 26-30.( in Chinese)
  • 14. Xu Zhiying,Shen Zhujing,Two-dimensional dynamic analysis method of seismic liquefaction effective stress[J].Journal of Hohai University(Natural Science Edition),1981,(3):1-14.
  • 15. Ren Jieming,Su Jingyu,Dou Yuanming, Neural network Sand Liquefaction[J], Hebei University of Technology,2002,31(2):23-25.
  • 16. Ishihara K.Undrained deformation and liquefaction of sand under cyclic stress[J].Soils and Foundation,1975,15(1):29-44.
  • 17. McLaren, P. Sediment Trend Analysis (STA (R)): Kinematic vs. Dynamic Modeling[J]. Journal of Coastal Research, 2014,30(3): 429-437.
  • 18. Han, ZQ; Wang, CY; Zhu, HY. Research on deep joints and lode extension based on digital borehole camera technology[J]. Polish Maritime Research, 2015,22(1): 10-14.
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
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