Nghiên cứu đánh giá hiệu quả giảm sóng gây bồi của các cụm công trình trọng điểm tại các bãi biển Hải Hậu, Nam Định

Abstract

Nam Dinh province is downstream of the Hong-Thai Binh system, with a coastline of over 72km in the northeast-southwest direction (about 45o away from the north). Many coastal areas of Nam Dinh, especially the coastline from Van Ly to Thinh Long of Hai Hau has been strongly eroded. Facing that situation, sand-reducing structures were built to protect the beach. These works are in the form of a groyne embankment and a T-shaped groyne embankment. Mathematical modeling method is used to evaluate the effectiveness of the T-shaped embankment cluster in Hai Hau Coastal area. The results showed the cause of the low accretion efficiency on beach.