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Preventing and Limiting Exposure to geo-hazards:Some Lessons from Two Mountain Villages Destroyed by the Wenchuan Earthquake

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Journal of Mountain Science 2011年第2期8卷 190-199页

作者： Laurence SVIRCHEV LI Yong YAN Liang MA Bolin HE Chengying Visiting Researcher National Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Chengdu University of Technology Chengdu Sichuan China Royal Roads University School of Peace and Conflict Management MA Disaster and Emergency Management Program Victoria B.C. Canada National Key Laboratory of Oil and Gas Reservoir geology and Exploitation Chengdu University of Technology Chengdu Sichuan China H&S Consulting Vancouver B.C. Canada

This paper examines the experiences of two mountain communities- Yinchanggou and Donghekou in the Wenchuan earthquake of May 12, 2008, where Yinchanggou's tourism economy and natural park system was destroyed and Donghekou was buried by a landslide. We conducted research surveys on both the communities, interviewing survivors and local officials, and observed the destruction/reconstruction, geological, and living conditions. We suggest that protracted educational processes be put into place so that mountain communities possess a knowledge base to consider long-term disaster prevention when building the economy in the fragile and geo-hazardous conditions of the Longmenshan. The Donghekou Earthquake Ruins Park is an exemplar of turning disaster into sustainable, safe development for small mountain villages.

关键词： Wenchuan Earthquake geo-hazards Post-disaster reconstruction Survery

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Early warning for geo-hazards based on the weather condition in China

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Global geology 2006年第2期9卷 131-137页

作者： Chuanzheng LIU Yanhui LIU Mingsheng WEN Can TANG Tiefeng LI Jianfa LIAN China institute for geo-Environment Monitoring Beijing 100081 China

According to national early warning practice for geo-hazards from 2003 to 2005,it is systematically concluded that the basic characteristics of geo-hazards,early warning method and forecast result based on the geological maps of China in a scale 1∶6 000 *** the contrast of different characters between sustained rainfall and typhoon rainfall inducing geo-hazards,the disaster reduction result and some problems are preliminarily *** basic recognition is that early warning to geo-hazards is feasible,national scale forecast is only to call attention,but can't immediately be used to disaster reduction ***,the future direction is to build a united disaster reduction framework of early warning system including national,provincial and county levels based on weather factors in different scale of area.

关键词： China geo-hazards early warning based on weather condition result analysis

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Slope stability hazard management systems

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2007年第11期8卷 1695-1711页

作者： FREDLUND Delwyn G. Department of Civil Engineering University of Saskatchewan Saskatoon SK Canada MOE Key Laboratory of Soft Soils and Geoenvironmental Engineering Zhejiang University Hangzhou 310027 China

Weather-related geo-hazards are a major concern for both natural slopes and man-made slopes and embankments. Government agencies and private companies are increasingly required to ensure that there is adequate protection of sloping sur- faces in order that interaction with the climate does not produce instability. Superior theoretical formulations and computer tools are now available to address engineering design issues related to the near ground surface soil-atmospheric interactions. An ex- ample is given in this paper that illustrates the consequences of not paying adequate attention to the hazards of slope stability prior to the construction of a highway in South America. On the other hand, examples are given from Hong Kong and China's Mainland where significant benefits are derived from putting in place a hazard slope stability management system. Some results from a hazard management slope stability study related to the railway system in Canada are also reported. The study took advantage of recent research on unsaturated soil behaviour and applied this information to real-time modelling of climatic conditions. The quantification of the water balance at the ground surface, and subsequent infiltration, is used as the primary tool for hazard level assessment. The suggested hazard model can be applied at either specific high risk locations or in a more general, broad-based manner over large areas. A more thorough understanding of unsaturated soil behaviour as it applies to near ground surface soils, along with the numerical computational power of the computer has made it possible for new approaches to be used in slope hazard management engineering.

关键词： Slope stability geo-hazards Highway Hazard Slope stability management system

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