Navigation channel maintenance method for preventing marginal bank from silting toward navigation channel through siltation prevention groove

Abstract

The invention discloses a waterway maintenance method in the technical field of river channel management for preparing silt tanks to prevent side beach from accumulating to the waterway. The specific steps of the waterway maintenance method for preparing silt tanks to prevent side beach from silting up to the waterway are as follows: S1: along the waterway direction, use a dredger to excavate the silt preparation tank at the side beach of the channel; S2: Use the water gauge to control the excavation depth of the silt storage tank to ensure that the depth of the silt storage tank is greater than the dredging and maintenance depth of the channel; The side slope of the trough is constructed by step excavation method to ensure that the side slope of the silt storage tank will not collapse when it is scoured by the water flow; For silt cleaning, in the present invention, silt troughs are provided on the side beach of the waterway, which can effectively prevent the silt on the side beach from entering the waterway and squeeze the waterway, causing the size of the waterway to continuously shrink, which can improve the dredging efficiency of the waterway and reduce Dredging costs for waterways.

Description

technical field [0001] The invention relates to the technical field of river channel management, in particular to a channel maintenance method for preparing a silt tank to prevent side banks from accumulating in the channel. Background technique [0002] With the sustained and rapid development of my country's national economy, the transportation volume of inland river goods continues to increase. In order to meet the needs of economic development, my country is increasing investment in infrastructure construction of inland rivers year by year. During the course of channel maintenance and dredging, the siltation of many channels mainly comes from the shoal outside the channel squeezed into the channel. When the silt scale is large , the channel siltation speed will exceed the dredging speed. Due to the limitation of channel navigation conditions, it is often difficult to increase dredging ships or replace dredging ships with greater dredging capacity in the channel, resulting...

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Problems solved by technology

In order to meet the needs of economic development, my country is increasing investment in infrastructure construction of inland rivers year by year. During the course of channel maintenance and dredging, the siltation of many channels mainly comes from the shoal outside the channel squeezed into the channel. When the silt scale is large , the cha

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