Novel governance method for blocking sands with grids for seaward channel

Abstract

The invention relates to a novel governance method for blocking sands with grids for a seaward channel which belongs to the field of water transportation science and technology. The method is simple and easy in process, reduces the cost of implementation project, can effectively reduce channel deposition, and is not affect the flood discharging capability of river channels. The grids parallel to a jetty are distributed on the inner side of the jetty, and a plurality of grids perpendicular to the jetty are distributed at the position for installing a groyne. The grids play a role of blocking and stabilizing sands and also play a role of clearing sands with converging flow, and the channel deposition reduction effect is significant.

Description

technical field [0001] The invention relates to the field of water transportation and transportation technology, in particular to a new method for controlling sand entering the sea by using grids to block sand, which is applicable to the channels on most silty and sandy coasts that are controlled by double guide dikes. Background technique [0002] With my country's reform and opening up and the growth of international trade, the status and role of ports in promoting international trade and regional economic development have become more and more obvious. A port is a transportation infrastructure for ships to safely enter, exit and berth, and is a hub of land and water transportation. The problem of siltation in ports has become a key and difficult point in the management of various ports in the world, especially the estuary ports built on muddy and sandy coasts. In order to meet the seaworthiness requirements, the water depth of the channel needs to pass through a large numb...

AI Technical Summary

Problems solved by technology

Shanghai Waterway Design Institute and other scientific research institutes, which undertake the design and research tasks of the waterway, have studied traditional silt reduction methods such as lengthening the dike and heightening the dike, and found that the effect is not obvious, and the project cost is high; at the same time, the heightening of the dike will cause Increased cross flow at embankment, affecting ships entering and leaving the port

Beam flow, the main engineering measure is to build a spur dam in the diversion dike to increase the flow power, but after the spur dam is built, the original river channel will be narrowed, which will affect the safety of flood discharge. It is difficult for this plan to get the approval of the water conservancy management department

Therefore, the traditional technical solutions have great limitations in the channel engineering of Sheyang Port in Jiangsu Province, and there is an urgent need for a treatment measure with reasonable cost, obvious silt reduction effect and no impact on flood discharge safety.

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