Movable permeable spur dam structure and construction method for protecting coastal erosion

Abstract

The invention provides a movable type permeable spur structure capable of preventing coast erosion. The movable type permeable spur structure capable of preventing coast erosion comprises a coast, open occasions and anchorage devices. A plurality rows of open occasions are installed on one side of the coast at intervals and in a staggered mode, and the adjacent open occasions are connected through anchorage devices; the center of each open occasion is in a hollow shape, an opening is formed in the upper end of each open occasion, connecting rings are symmetrically installed on the two sides of each open occasion, a water inlet hole is formed in each open occasion, a trapezoidal bottom mat is installed at the bottom of each open occasion, and trapezoidal bottom mats are arranged on the foundation of the coast; the anchorage devices are installed on the two sides of the open occasions and connected with the open occasions through a plurality of anchor chains so as to be fixed to the foundation of the coast. According to the movable type permeable spur structure capable of preventing coast erosion and a construction method, the effect of coast erosion prevention can be achieved, and the movable type permeable spur structure can be conveniently dismounted after the protection requirement is met; the permeable structure of a spur can reduce damage of waves and tides to the spur, so that the project amount is relatively reduced, and construction efficiency is improved; and in addition, construction materials of the dismounted spur can be recycled, and waste of construction materials is avoided.

Description

technical field [0001] The invention relates to the field of coastal protection, in particular to a movable permeable spur structure and construction method for protecting coastal erosion. Background technique [0002] With the rapid development of the coastal economy and the substantial increase in the intensity of development and utilization of coastal zone resources, the intensity of the impact on the coastal zone is also increasing. At the same time, due to the sea level rise caused by global warming and the seawater movement and chemical action of ocean waves, tides, and currents, the damage to the coast is increasing, and the degree of coastal erosion and retreat is increasing. In the prevention and control measures of coastal erosion, spur dikes are commonly used protective engineering structures. The spur dikes have changed the hydrodynamic conditions of the coast, the process of sediment movement and the changes of coastal erosion and siltation, and have achieved a ...

AI Technical Summary

Problems solved by technology

Once the fixed spur dike is built, even if the protection requirements of the eroded shore beach have been completed, it will still be left in place. On the one hand, it will destroy the natural landscape of the coastal zone, change the functional attributes of the coast, and on the other hand, make the redevelopment of the coast Utilization is restricted and sustainable use of marine resources cannot be achieved

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