地质学报（英文版）2009，Vol.83Issue(4)：816-825,10.
Assessment of Geological Security and Integrated Assessment Geo-environmental Suitability in Worst-hit Areas in Wenchuan Quake
Assessment of Geological Security and Integrated Assessment Geo-environmental Suitability in Worst-hit Areas in Wenchuan Quake
LI Wenpeng 1WEN Dongguang 2ZHOU Aiguo 3SUN Xiaoming 4MENG Hui 1SHI Jusong 5CHEN Zongyu 6XHANG Liqin 3FENG Xiaoming 7LIU Changli 6ZHOU Jianwei3
作者信息
- 1. China Institute of Geo-Environmental Monitoring, Beijing 100081
- 2. China Geological Survey, Beijing 100037
- 3. Institute of Geomechanics, China Academy of Geological Science, Beijing 100081
- 4. Tianjin Geological Survey Center of CGS, Tianjin 300170
- 5. Geomechanics Institute of Chinese Geological Academy, Beijing 100086
- 6. The Institute of Hydrogeology and Environmental Geology, CAGS, Shi Jiazhuang 050061
- 7. Nanjing Geological Survey Center ofCGS, Nanjing 210016
- 折叠
摘要
Abstract
The Wenchuan earthquake in 2008 and geo-hazards triggered by the earthquake caused large injuries and deaths as well as destructive damage for infrastructures like construction, traffic and electricity. It is urgent to select relatively secure areas for townships and cities constructed in high mountainous regions with high magnitude earthquakes. This paper presents the basic thoughts, evaluation indices and evaluation methods of geological security evaluation, water and land resources security demonstration and integrated assessments of geo-environmental suitability for reconstruction in alp and ravine with high magnitude earthquakes, which are applied in the worst-hit areas (12 counties). The integrated assessment shows that: (1) located in the Longmenshan fault zone, the evaluated area is of poor regional crust stability, in which the unstable and second unstable areas account for 79% of the total; (2) the geo-hazards susceptibility is high in the evaluation area. The spots of geo-hazards triggered by earthquake are mainly distributed along the active fault zone with higher distribution in the moderate and high mountains area, in which the areas of high and moderate susceptibility zoning accounts for 40.1% of the total; (3) geological security is poor in the evaluated area, in which the area of the unsuitable construction occupies 73.1%, whereas in the suitable construction area, the areas of geological security, second security and insecurity zoning account for 8.3%, 9.3% and 9.3% of the evaluated area respectively; (4) geo-environmental suitability is poor in the evaluated area, in which the areas of suitability and basic suitability zoning account for 3.5% and 7.3% of the whole evaluation area.关键词
Wenchuan earthquake/geological security/carrying capacity of water and land resources/geo-environmental suitabilityKey words
Wenchuan earthquake/geological security/carrying capacity of water and land resources/geo-environmental suitability分类
天文与地球科学引用本文复制引用
LI Wenpeng,WEN Dongguang,ZHOU Aiguo,SUN Xiaoming,MENG Hui,SHI Jusong,CHEN Zongyu,XHANG Liqin,FENG Xiaoming,LIU Changli,ZHOU Jianwei..Assessment of Geological Security and Integrated Assessment Geo-environmental Suitability in Worst-hit Areas in Wenchuan Quake[J].地质学报（英文版）,2009,83(4):816-825,10.
