Assessment of Liquefaction Potential Distribution Considering Spatial Structure of CPT Measurements.
碩士 === 國立暨南國際大學 === 土木工程學系 === 92 === The past studies of liquefaction phenomena during earthquakes have contribute to the assessment of liquefaction. Simplified methods used to evaluate the factor of safety employing field test data have been a common approach for liquefaction assessment. Since t...
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| Format: | Others |
| Language: | en_US |
| Published: |
2004
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| Online Access: | http://ndltd.ncl.edu.tw/handle/04370056930468059093 |
| Summary: | 碩士 === 國立暨南國際大學 === 土木工程學系 === 92 === The past studies of liquefaction phenomena during earthquakes have contribute to the assessment of liquefaction. Simplified methods used to evaluate the factor of safety employing field test data have been a common approach for liquefaction assessment. Since the assessment of liquefaction using field test data is always unavoidable in geotechnical engineering, how to obtain more valuable and meaningful information from that data is important. Random field considers the spatial structure of soil property that helps for gaining more information from existing measurements that can be further used for estimating soil properties at unsampled locations. It is applied in the proposed method to assess liquefaction potential over an extensive area using Monte Carlo simulation. The proposed method can be used to build liquefaction potential map that is useful and helpful in city planning, new facility construction, and land use.
This research demonstrates the proposed method for assessing liquefaction potential over an extensive area using random field concept and Monte Carlo simulation for probabilistic analyses. A reliability index is proposed for denoting the liquefaction potential at a certain location. The feasibility of this proposed method is verified. The results show that the simulated results are comparable to the observed liquefaction phenomena and the scale of fluctuation of soil property strongly influences the results of liquefaction potential.
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