Damage to Civil Engineering Structures with an Emphasis on Rock Slope Failures and Tunnel Damage Induced by the 2008 Wenchuan Earthquake
Ö. Aydan, M. Hamada, J. Itoh, and K. Okubo
*1Department of Marine Civil Engineering, Tokai University, Shizuoka, Japan
*2Department of Civil Engineering, Waseda University, Tokyo, Japan
*3SAVEARTH, Waseda University, Tokyo, Japan
*4Naka-Nihon Expressway Company (NEXCO), Tokyo, Japan
The Great Wenchuan (Sichuan) Earthquake of 2008 occurred in Wenchuan County, Sichuan Province, China, extensively damaging buildings and infrastructures, caused natural and cut slope failures, and over 85,000 people lost their lives. We present an overview of the damage to civil engineering structures, emphasizing slope failures and tunnel damage. Damage to civil engineering structures was due mainly to high strong ground motion and permanent ground deformation resulting from the earthquake fault’s diluted deformation front. After discussing damage to bridges and viaducts, we classify slope failures, landslides, and possible causative mechanisms. We then introduce slope-rehabilitation measures. And then damage to tunnels, which are generally resistant to earthquakes, are explained together with mitigation measures.
-  Ö. Aydan, “A note on the seismic stability of discontinuous rock slopes,” Interim Report (December 7, 1987), Geotechnical Engineering Department, Nagoya University, 16 pages, 1987 (unpublished).
-  Ö. Aydan, “The Stabilisation of Rock Engineering Structures by Rockbolts,” Doctorate Thesis, Nagoya University, 204p, 1989.
-  Ö. Aydan, “Strong motions, ground liquefaction and slope instabilities caused by Kashmir Earthquake of October 8, 2005 and their effects on settlements and buildings,” Bulletin of Engineering Geology. No. 23(15-34), 2006)
-  Ö. Aydan and M. Hamada, “Damage to Civil Engineering Structures by Oct. 8, 2005 Kashmir Earthquake and Recommendations for Recovery and Reconstruction,” Journal of Disaster Research, Vol.1, No.3 pp. 1-9, 2006.
-  Ö. Aydan and Y. Ohta, “The characteristics of ground motions in the neighbourhood of earthquake faults and their evaluation. Symposium on the Records and Issues of Recent Great Earthquakes in Japan and Overseas,” EEC-JSCE, Tokyo, pp. 114-120, 2006.
-  Ö. Aydan, T. Kyoya, Y. Ichikawa, T. Kawamoto, and Y. Shimizu, “A model study on failure modes and mechanisms of slopes in discontinuous rock mass,” The 24th Annual meetings of Soil Mechanics and Foundation Eng. of Japan, Miyazaki, 415, pp. 1089-1093, 1989.
-  Ö. Aydan, S. Sakoda, and H. Kumsar, “Stability of slopes under dynamic loading and its modelling,” Symposium on Modern Applications of Engineering Geology, Turkish National Group of Enginering, Denizli, pp. 101-109, 2006a.
-  Ö. Aydan, M. Daido, T. Ito, H. Tano, and T. Kawamoto, “Prediction of post-failure motions of rock slopes induced by earthquakes,” 4th Asian Rock Mechanics Symposium, Singapore, Paper No. A0356 (on CD), 2006b.
-  Ö. Aydan, M. Hamada, J. Itoh, “The Characteristics of the 2008 Wenchuan Earthquake Disaster with a Special Emphasis on Rock Slope Failures, Quake Lakes and Damage to Tunnels,” Journal of Marine Science and Technology, Vol.1, 2008 (in press).
-  China Earthquake Data Center (CEDC), “A quick report on the strong motion data of 5.12 Wenchuan earthquake,” 2008 (in Chinese).
-  M. Hamada and Ö. Aydan, “The 2008 Sichuan Great Earthquake Disaster and Technological Restoration and Recovery Support Activities of Interdisciplinary Liaison Council led by JSCE,” WFEO-JFES-JSCE Joint International Symp. On Disaster Risk Management, Sendai, pp. 12-25, 2008.
-  HARVARD, “HARVARD Centroid Moment Tensor, Department of Earth and Planetary Sciences,” HARVARD University, Cambridge, MA, USA, 2008.
-  IGP-CEA, “Institute of Geophysics, China Earthquake Administration, M8 Wenchuan Earthquake,” 2008.
-  H. Kumsar, Ö. Aydan, and R. Ulusay, “Dynamic and static stability of rock slopes against wedge failures,” Rock Mechanics and Rock Engineering, Vol.33, No.1, pp. 31-51, 2000.
-  C. J. Lin and J. F. Chai, “Reconnaissance report on the China Wenchuan Earthquake My 12, 2008,” NCREE Newsletter Vol.3, No.3, Sep. 2008.
-  Y. Shimizu, Ö. Aydan, Y. Ichikawa, and T. Kawamoto, “An experimental study on the seismic behaviour of discontinuous rock slopes (in Japanese),” The 42nd Annual Meeting of Japan Society of Civil Engineers, III-180, pp. 386-387, 1988.
-  UNOSAT, “Overview of Tangjiashan quake lake, Beichuan, China from 3-8 June 2008,” EQ-2008-000062-CHN, 2008.
- Xinhuanet, “Pictures of 5.12 Wenchuan earthquake,” 2008
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