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On the Damage Rule of Earth-rock Dams in Sichuan Province Affected by Wenchuan Earthquake with GIS Technology

Author: WangBingJie
Tutor: ZhangJiaFa；ChenPengXiao
School: Yangtze River Scientific Research
Course: Geotechnical Engineering
Keywords: Embankment dams Earthquake damaged GIS Spatial distribution Intensity distribution Dam axis Own factors
CLC: P208
Type: Master's thesis
Year: 2011
Downloads: 48
Quote: 0
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Abstract


The number of China 's dam in the world, where most of the earth-rock dam . Dam destroyed in the earthquake , will be a serious threat to the safety of life and property of the people downstream , is one of the serious earthquake disaster . Therefore embankment dams in earthquake earthquake damaged law has important practical significance . 2008 Wenchuan earthquake in Sichuan Province earthquake damaged embankment dam as the research object , the application of GIS technology to analyze the mechanism of embankment dams earthquake damaged , the earthquake damaged phenomena and earthquake damaged influencing factors , research on earthquake damage phenomenon , the extent and impact of the earthquake damaged factors the correlation between the inductive research , summed up the law of the earthquake damaged embankment dams . The main contents of this paper include , summarize the results of previous studies , summarized the analysis the embankment dams shock loss influencing factors ; GIS software on the law of the spatial distribution of the Wenchuan earthquake in Sichuan Province reservoir shock loss , the reservoir shock loss with seismic intensity distribution and Reservoir dam axis distribution law of earthquake damaged danger , the reservoir their own factors to study the law of the danger of earthquake damaged . The main findings and conclusions are as follows : ( 1) embankment dam earthquake damaged the influencing factors can be summarized as follows: seismic factors , the spatial relationship of the dam and earthquake , the dam itself three factors ; ( 2 ) reservoir earthquake damaged the spatial distribution and earthquake rupture zone distribution related to the proportion of high and low of the earthquake damaged along the rupture zone of the zonal distribution in space ; the shock losses danger of the reservoir ( 3) seismic intensity between partitions has a certain similarity , seismic intensity distribution for disaster area many earthquake damaged water conservancy has some applicability ; the danger law (4 ) Reservoir dam axis distribution of earthquake damaged more complex theoretical analysis that the smaller the angle between the dam axis with the seismic main rupture zone the reservoir earthquake damaged more serious , the statistical analysis found that the the dam axis earthquake main rupture with an angle of 36 ° ~ 54 ° reservoir earthquake damaged highest proportion ; (5) earthquake damaged most of the reservoirs were built 80 years ago , most of the earthquake damaged embankment dam earthquake before there are certain dangerous earthquake damaged reach high risk of danger and the reservoir of the dam failure danger dangerous before the earthquake more .

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CLC: > Astronomy,Earth Sciences > Surveying and Mapping > General issues > Mapping database and information system
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