The Chi-Chin coastal park, located near Kaohsiung harbor, was built from 1993 to 1997 in southern area of Taiwan. Due to the heavy wave induced settlement inside the park from beach to Art Square during June 1997, the continued soil loss not only endangered the park area, but also resulted in some ground settlement around the front of the Office and Travel Center within the park zone. In order to promptly prevent more ground soil loss, a group of retaining piles was constructed between the beach and Park Office. Until 2003, over almost 6 years, the damage has been not happen in the Chi-Chin coastal park due to the piles installation. From the case, the retaining wall or embedded pile will provide a successful experience for offshore slope subject to wave loadings. Meantime the model derived by minimum energy theory can explain the observed settlement profile in the field. Eventually the full length of pile, even reaches to 14 meter, will provide a good way to mitigate the soil loss of beach while heavy waves attack.
The Chi-Chin coastal park, located near Kaohsiung harbor, was built from 1993 to 1997 in southern area of Taiwan. Since the heavy wave loadings induced settlement inside the park from beach to Art Square during June 1997, the continued soil loss not only endangered the park area, but also resulted in some ground settlement around the front of the Office and Travel Center within the park zone. In the past study Hsiao and Huang (2000a) stated that the failure mechanism were discussed and analyzed by using the model fluid-liquefaction. It is found that some areas should be liquefied apparently under given parametric conditions. Furthermore, Hsiao and Huang (2000a) found that liquefaction caused from wave loading leads to reduction of passive soil pressure and causing slope slide instability.
