The Study of Twin-jetties to Harness the Yellow River Estuary by Using the Sea Energy

摘要

Construct twin jetties in the Yellow River estuary, transport the sediment to the deep area in the sea, which is of great sea energy, in order to decelerate the speed of the sand aggradation and steady the estuary watercourse to the sea. Study indicates that the twin jetties whose design breadth is 500m should be arranged between the high water level and -10m isobathic line. In the plan, the twin jetties, whose watercourse breadth is from quondam 1～2km to current 0.5km, looks like a trumpet. The construction of the twin jetties is: the geogrid section from quondam diversion dike to low tide line, the sand fill tube bag section from low tide line to -2m isobathic line, the concrete hydrodynamic flashboard section from -2m isobathic line to -10m isobathic line.