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Probabilistic Assessment of Soil Liquefaction by Using Seismic Chinese Code
Deterministic safety factor are introduced by Z. CAO et al (2008) according to seismic Chinese code. The approach was deterministic method used the standard penetration test (SPT) to evaluate the liquefaction of soil. With this method, liquefaction of soil is predicted to occur if the factor of safety(FS), which in the ratio of critical SPT-N value(Resistance) over the actual measurement SPT-N(Load), is less than or equal to one. If the factor of safety greater than one, no soil liquefaction is predicted. Because the significant uncertainties in variable involved in the deterministic factor of safety, the probability method need to use. Probabilistic safety factor calculations provide a means of evaluating the combined effeces of uncertainties and provide a logical framework for choosing a factor of safety that is appropriate for the degree of uncertainty and consequences of failure. Then, a probabilistic assessment of soil liquefaction may be performed in which probability of failure and reliability index. By using the most widely reliability analysis as the First Order Second Moment (FOSM) method, the results of a probabilistic assessment of soil liquefaction can be used for engineering decision.
Probabilistic Assessment of Soil Liquefaction by Using Seismic Chinese Code
Deterministic safety factor are introduced by Z. CAO et al (2008) according to seismic Chinese code. The approach was deterministic method used the standard penetration test (SPT) to evaluate the liquefaction of soil. With this method, liquefaction of soil is predicted to occur if the factor of safety(FS), which in the ratio of critical SPT-N value(Resistance) over the actual measurement SPT-N(Load), is less than or equal to one. If the factor of safety greater than one, no soil liquefaction is predicted. Because the significant uncertainties in variable involved in the deterministic factor of safety, the probability method need to use. Probabilistic safety factor calculations provide a means of evaluating the combined effeces of uncertainties and provide a logical framework for choosing a factor of safety that is appropriate for the degree of uncertainty and consequences of failure. Then, a probabilistic assessment of soil liquefaction may be performed in which probability of failure and reliability index. By using the most widely reliability analysis as the First Order Second Moment (FOSM) method, the results of a probabilistic assessment of soil liquefaction can be used for engineering decision.
Probabilistic Assessment of Soil Liquefaction by Using Seismic Chinese Code
Applied Mechanics and Materials ; 166-169 ; 2248-2252
2012-05-14
5 pages
Article (Journal)
Electronic Resource
English
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