Abstract
Field tests were conducted to examine the effectiveness of erosion control sheets on seawalls, against high waves. As a result, a significant wave height of three meters or more was found to damage erosion control sheets designed to meet the minimum standards in technical criteria. However, if a filter layer made of small-grain crushed stones is used together with the erosion control sheets, the damage was prevented. Moreover, with strong sheets - which weigh twice as much and stretch three times more than the minimum-standard sheets - in which no damage was caused even without the filter layer. In conclusion, for seawalls in locations with strong waves, the minimum-standard erosion control sheets are insufficient, and measures should be taken to strengthen the sheets.
