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Dynamic responses of buried pipelines during a liquefaction process
Dynamic response analysis for buried pipelines were performed based on the Rayleigh—Ritz method using the Hamilton's principle for the formulation. The critical evaluations of the soil's parameters were made during the process of soil liquefaction, which include variations of dynamic soil and water pressures, subgrade reactions, and damping coefficient. The analytical results were compared with model experiments in a shaking table. The analytical results were approximately 60 to 100% larger than the experimental measurements. One of the reasons of the discrepancy might be attributed to some conservative assumptions used in assessing the dynamic lateral earth pressure. It was also found that rigorous evaluation of damping during liquefaction process is significantly critical for the accurate analysis.
Dynamic responses of buried pipelines during a liquefaction process
Dynamic response analysis for buried pipelines were performed based on the Rayleigh—Ritz method using the Hamilton's principle for the formulation. The critical evaluations of the soil's parameters were made during the process of soil liquefaction, which include variations of dynamic soil and water pressures, subgrade reactions, and damping coefficient. The analytical results were compared with model experiments in a shaking table. The analytical results were approximately 60 to 100% larger than the experimental measurements. One of the reasons of the discrepancy might be attributed to some conservative assumptions used in assessing the dynamic lateral earth pressure. It was also found that rigorous evaluation of damping during liquefaction process is significantly critical for the accurate analysis.
Dynamic responses of buried pipelines during a liquefaction process
Wang, L.R.L. (author) / Shim, J.S. (author) / Ishibashi, I. (author) / Wang, Y. (author)
Soil Dynamics and Earthquake Engineering ; 9 ; 44-50
1988-09-01
7 pages
Article (Journal)
Electronic Resource
English
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