2024 Volume 80 Issue 18 Article ID: 24-18073
The estimation of the construction period and cost for marine construction is based on the utilization factor calculated from the wave frequency distribution table. However, there may be discrepancies between the actual construction operation rate. In a port on the Pacific coast, marine construction was carried out inside the breakwater, but the construction operation rate was lower than expected based on the utilization factor. This study estimated the factors causing the suspension of breakwater marine construction at the target port and examined new criteria for suspending construction.
Based on construction records and continuous wave height estimation results, it was suggested that in the target port, the decision to proceed with construction is great case of influenced not only by wave height but also by wave direction, with more suspension days occurring in the NE to ENE wave directions. It is presumed to be due to reflections from the breakwater and the effects of waves along the breakwater, which lowered the construction operation rate within the port. Additionally, a proposal for new construction suspension criteria considering both wave height and wave direction was made.
