SU1569363A1 - Method of blocking bed of river - Google Patents

Abstract

FIELD OF THE INVENTION The invention relates to hydraulic engineering. The purpose of the invention is to increase the construction efficiency by reducing the closure time of the passage and reducing the number of required mechanisms. The method of blocking the river bed includes preliminary constraining the river bed by dumping the bottom banquet from one bank in full volume of the future plume. The train is formed during the period of complete overlapping of the channel by the erosion of the downstairs banquet, and a washing stream is directed towards it by dumping the high banquet from the bank opposite to the downstream banquet. They can fill up several downstairs banquets, placing them alternating along the river on the opposite banks. 1 hp f-ly, 6 ill.

Description

FIELD OF THE INVENTION The invention relates to hydraulic engineering.

The aim of the invention is to increase construction efficiency by reducing the closure time of the passage and reducing the number of required mechanisms.

Figure 1 shows a section of a river in alignment at the time of the end of the preliminary constraint of the channel, a plan; figure 2 - section aa in figure 1; in FIG. 3 — the section of the river in alignment at the moment of the advancement (dumping) of the high banquet of the period of complete overlap of the channel (close the protrahan), plan: in FIG. 4 — section BB in FIG. 3; figure 5 is a longitudinal profile of the river in alignment of the pos-1

not complete the overlap; figure 6 - the same plan.

The method for closing the river bed is as follows.

During the period of preliminary pressure of the riverbed from the bank 1 side, a downstairs banquet 2 is poured in the volume of the future plume. During the period of complete overlapping of the river bed from the bank 3, the banquet 4 is poured over. At the same time, the water stream 5 is directed by the banquet 4 towards the downstairs banquet 2 and is washed away, forming a train 6 preventing the erosion of the banquet 2 which makes the final overlap of the riverbed . t If necessary, during the period of the preliminary pressure of the bed sleep

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several downstairs banquets, while exploring the downstairs banquet 7 is poured1 on the opposite 3 rivers from the previous bank. In this case, during the process of blocking the channel, the stream is diverted by the feast 2 towards the downstream feast 7 and erodes it eventually to form a single loop (fleet) of 6G. Yu

Banquet dumping sites and the bulk of the dumping material are determined based on laboratory test results.

Claims (1)

The application of the proposed method allows the overlap of 5 river beds in a short period of time, which needs to be spent for dumping the up-down banquet of a compact outline, which also allows using a smaller number of mechanisms required compared to the known one. Invention Formula 1 „The way to close the river bed; -including prior constraint channel by dumping the downstairs banquet and complete overlapping of the bed with the formation of a plume behind the banquet of overlap, characterized in that, in order to increase construction efficiency by reducing the closure time of the aperture and reducing the number of required mechanisms, during the period of preliminary constraint of the bed, the downstairs banquet is poured from one bank to full volume of the future plume, and the plume is formed during the period of complete overlapping of the channel by the erosion of the downstairs banquet, the washing stream is directed to it by filling the upper banquet with against bying from the grassroots banquet shore. 2, the method according to claim 1, of the tl and h ay - y and i with the fact that pouring a few downstairs banquets, placing them "alternating along the river on the opposite banks. .7 g T 1 /// / ;; //; ; // /////; ////// ig- + Fig.Z B-6 Rig. f  Rig. five 6