BEACH EROSION AND BEACH NOURISHMENT OF JINMENG BAY BEACH IN QINHUANGDAO

LIU Xiujin; ZHUANG Zhenye; XIE Yaqiong; YANG Yanxiong; QIU Ruofeng

2014 Vol. 30, No. 3

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LIU Xiujin, ZHUANG Zhenye, XIE Yaqiong, YANG Yanxiong, QIU Ruofeng. BEACH EROSION AND BEACH NOURISHMENT OF JINMENG BAY BEACH IN QINHUANGDAO[J]. Marine Geology Frontiers, 2014, 30(3): 71-79.

Citation:

LIU Xiujin, ZHUANG Zhenye, XIE Yaqiong, YANG Yanxiong, QIU Ruofeng. BEACH EROSION AND BEACH NOURISHMENT OF JINMENG BAY BEACH IN QINHUANGDAO[J]. Marine Geology Frontiers, 2014, 30(3): 71-79.

BEACH EROSION AND BEACH NOURISHMENT OF JINMENG BAY BEACH IN QINHUANGDAO

1 Qinhuangdao Mineral Resource and Hydrogeological Brigade, Hebei Geological Prospecting Bureau, Qinhuangdao 066001, Hebei, China;
2 College of Marine Geosciences, Ocean University of China, Qingdao 266100, China

Received Date: 03 January 2014

Abstract

Abstract

The Jinmeng Bay is a large bathing beach in western Qinhuangdao. The width of the beach was about 40-90 m. It had been under severe erosion before nourishment at an average erosion rate of 1.26-1.98 m/a. The biggest erosion rate might be as high as 3.86 m/a. The increase in coarse sediments of poor quality had seriously affected the beach tourism. The restoration work included nourishment of 172.5×104 m3 sand in the near shore area and construction of 3 offshore submerged-dikes. After more than one year of monitoring after the nourishment, we found that a large amount of filling sand was eroded immediately after the beach nourishment. Then the beach erosion was reducing and gradually the beach reached a status of balance. After fifteen months, there remained 83.4% of the nourished sand. It is regarded as a successful case of beach nourishment.
- Jinmeng Bay beach /
- beach erosion /
- beach nourishment /
- beach profiles