SU866031A1 - Method of damming a river bed - Google Patents

Description

(54) METHOD FOR OVERLAPPING A RIVER BED

one

The invention relates to hydraulic construction, and in particular to methods for blocking a channel, mainly with a fine sandy bottom.

There is a known method of blocking the river bed, which consists in pioneering dumping of banquets with subsequent frontal overlapping of the passage 1.

The disadvantage of this method is the need for a pontoon bridge device, from which the frontal overlapping of the aperture is carried out.

The disadvantage of this method is the need for a pontoon bridge device, from which the frontal overlapping of the aperture is performed.

The closest technical solution to the invention is the method of closing the river bed, which consists in filling banquets from both banks 2.

The disadvantage of this method is the complicated technology of work due to the need to fix the bottom of the channel in the aperture, and increase the dumping of the material.

The purpose of the invention is to simplify the work technology.

The goal is achieved by first filling the banquet above the water level from only one bank, after which its upper part is cut off to form an underwater threshold, and then the banquet from the opposite bank is filled to the full height to be closed with the underwater threshold followed by filling it water level.

In addition, the cutting of the upper part of the banquet to form an underwater threshold can be carried out with simultaneous fastening of its surface.

FIG. Figure 1 shows schematically the dumping of the initial left-bank banquet to its full height above the water level; in fig. 2 - the process of removing the top 15 layer of the original banquet and strengthening the ridge of the banquet; in fig. 3 - the initial banquet with its upper part, reinforced with stone or concrete tetrahedrons; in fig. 4 - dumping of the right bank banquet to the full height; in fig. 5 - dumping of the right bank banquet to the left bank; in fig. 6 - secondary dumping-filling of the initial banquet; in fig. 7 - complete overlap of the river.

Claims (2)

Claim 1. The method of blocking the river bed, which consists in filling banquets from both banks, characterized in that, in order to simplify the work, first banquet dumping is performed above the water level from only one bank, after which its upper part is cut off to form a submerged threshold, then slept off to the full 15 height of the banquet from the opposite shore before closing with the underwater threshold, followed by filling it above the water level. 2. The method according to π. 1, characterized in that the cutting of the upper part of the banquet with the formation of an underwater threshold is carried out with simultaneous fastening of its surface.