Assembly type concrete combined sand accumulation hole coast anti-erosion structure

Abstract

The invention provides an assembly type concrete combined sand accumulation hole coast anti-erosion structure, and belongs to the field of coast protection. One sides of strip teeth and grooves of prefabricated components of the assembly type concrete combined sand accumulation hole coast anti-erosion structure are located on a beach sand bed, and a row of inverted prefabricated components of the assembly type concrete combined sand accumulation hole coast anti-erosion structure are placed on two adjacent large slopes; and water-passing and sand-accumulating horn holes in the two sides of the prefabricated component, located on an upper layer, of the assembly type concrete combined sand accumulation hole coast anti-erosion structure are opposite to water-passing and sand-accumulating horn holes in the two adjacent prefabricated components, located on a lower layer, of the assembly type concrete combined sand accumulation hole coast anti-erosion structure. The assembly type concrete combined sand accumulation hole coast anti-erosion structure has the advantages and effects that sand is inhibited from flowing from the coast to the sea, the sand flowing along with nearshore current is captured, the coast erosion is relieved, and the coastal sand beach is protected; the technology is reasonable in design and convenient to operate; industrial manufacturing construction is adopted, so that the work amount is effectively reduced and the construction efficiency is improved; and dismantled building materials can be recycled, so that the waste is avoided.

Description

technical field [0001] The invention relates to the field of coastal protection, in particular to an assembled concrete combined sand accumulation hole coastal erosion prevention structure. Background technique [0002] The coastal zone is located at the junction of the ocean, land and air, and is an extremely sensitive zone. Under the influence of wind, waves, tides, currents and human activities, it is very easy to cause imbalances in the coastal sediment budget and cause the coastline to retreat. , beach erosion and a series of coastal erosion phenomena. According to the 908 special investigation report, the total eroded shoreline of my country's mainland coast is 3255.3 km, and the erosion of sandy coastline is 2463.4 km, accounting for 49.5% of my country's sandy coast; 7.3%, has seriously affected the sustainable development of the marine economy. The protection and restoration of coastal erosion came into being. Prior to this, most coasts used hard protection, such a...

AI Technical Summary

Problems solved by technology

[0005] On the other hand, the sandy beach on the coast is not only in terms of environmental protection, but also thanks to the popularity of various marine leisure sports, and its importance as a tourist resource is also becoming prominent. The amount of sand flowing into the sea has been drastically reduced due to reasons such as blocking with concrete dikes, reduction of natural green space due to urban construction, and disappearance of coastal dunes due to landfills, resulting in the shrinking of coastal beaches.

[0006] Depending on the revetment method, waves push against the revetment and wash in front of the revetment, which cannot prevent sand loss

The method of man-made beach cultivation, where sand is artificially injected, not only requires a lot of cost for sand mining and transportation, but also is not a fundamental measure to prevent sand loss, so there is a burden of continuous sand supply

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