| Title |
A Study on Estimation of Allowable Wave Height for Loading and Unloading of the Ship Considering Ship Motion |
| Authors |
곽문수(Kwak, Moon Su) ; 문용호(Moon, Yong Ho) |
| DOI |
https://doi.org/10.12652/Ksce.2014.34.3.0873 |
| Keywords |
하역한계파고;선박 동요량;장주기파;포항신항;수치모의 Allowable wave height for loading and unloading of ship;Oscillation quantity of moored ship;Long period wave;Pohang New Harbor;Computer simulation |
| Abstract |
In this study, FDM modelling with axisymmetry condition and interface element was verified whether it is reasonable to estimate compositive behavior of a piled raft foundation. To this end, the modelling validity of piled raft foundations was estimated by comparing and analyzing numerical analysis results and laboratory model test results. Also, load bearing ratio of a raft is analyzed by performing sensitivity analysis of foundation parameters with the actual field conditions. As a result of this study, correlation between bearing capacity and vertical displacement of numerical results turned out to be similar with that of a laboratory model test. In addition, ultimate bearing capacity of piled rafts and load bearing ratio of the raft is calculated to be similar in both cases. The load bearing ratio of the raft was also estimated to be in the range of 33% to 52% from the sensitivity analysis. The results were confirmed to be similar to the previous studies. Therefore, it can be inferred that piled rafts can be effectively modelled applying axisymmetry condition and interface element. |