SU874851A1

SU874851A1 - Method of damming a river by earth-filling

Info

Publication number: SU874851A1
Application number: SU802932065A
Authority: SU
Inventors: Николай Константинович Голубев; Давид Лазаревич Меламут; Нинель Рачиковна Стеценко; Борис Николаевич Титов
Priority date: 1980-05-30
Filing date: 1980-05-30
Publication date: 1981-10-23

Description

(54) СПОСОБ ПЕРЕКРЫТИЯ РУСЛА РЕК НАМЫВОМ(54) METHOD OF OVERLAPPING THE RIVER ROLE OF THE RIVER

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Изобретение относитс к способам neper крыти русла рек намывом, используемым при возведении различных гидротехнических .сооружений.The invention relates to neper river bedding methods by the alluvium used in the construction of various hydraulic structures.

Известен способ перекрыти русла рек, при котором перекрытие прорана производ т путем одновременного намыва и отсыпки песчано-гравелистого грунта с торцовым выпуском пульпы под воду против течени 1.There is a known method of blocking a river bed in which the overlap of a gash is made by simultaneous alluvium and dumping of sandy-gravelly soil with face pulp discharge into the water against current 1.

Недостатком этого способа вл етс использование при намыве и отсыпке гравелистого грунта, который не всегда имеетс в достаточном количестве в районе строительства , а также необходимость изготовлени дополнительного специального оборудовани дл выпуска пульпы под воду.The disadvantage of this method is the use of the gravel soil, which is not always available in sufficient quantities in the construction area, during the reclamation and dumping, as well as the need to manufacture additional special equipment for discharging pulp into the water.

Наиболее близким к предлагаемому по своей технической сущности вл етс способ , заключающийс в подаче грунта в поток сверх его транспортирующей способности и пр едующем перекрытии прорана при доп0лнительной подаче грунта. Согласно этому способу поток дополнительно насыщаетс грунтом за счет размыва им предварительно намытых резервов 2.The closest to that proposed by its technical essence is the method of supplying the soil to the flow in excess of its transporting capacity and stalling the overlapping of the passage with additional feeding of the soil. According to this method, the stream is additionally saturated with soil due to the washing out of previously accumulated reserves with it.

Однако известный способ примен етс преимущественно при перекрытии малых и средних рек. Применение его дл перекрыти крупных рек при значительных перепадах и расходах затруднено, так как в проране при больших скорост х не всегдаHowever, the known method is used mainly in blocking small and medium rivers. Its application for blocking large rivers with significant differences and expenditures is difficult, since it is not always

удаетс достигнуть перенасыщени потока и полного перекрыти русла рассредоточенным намывом, кроме того, за счет большого уноса грунта практически невозможно создание намывных резервов. Невозможность it is possible to achieve a supersaturated flow and complete overlapping of the channel with dispersed alluvium, moreover, due to the large soil abstraction it is almost impossible to create alluvial reserves. Impossibility

IQ достаточного насыщени потока грунтом снижает эффективность известного способа. Цель изобретени - повышение эффективности способа путем увеличени насыщени потока грунтом.IQ sufficient saturation of the flow of soil reduces the effectiveness of a known method. The purpose of the invention is to increase the efficiency of the process by increasing the saturation of the flow with the soil.

Claims

15 The goal is achieved by preliminarily forming a discharge slot connecting the upper and lower tails at the pier area, and additional supply of soil is carried out by self-erasing when a part of the flow passes through the said slot. In addition, at the site of the slot can be additionally poured reserves of soil discharged into it when passing a stream. FIG. 1 shows the scheme of blocking the river bed with the flow outlet; in fig. 2, section A-A in FIG. 1. The method is carried out as follows. In order to close the riverbed I, at first they restrict it to the penetration 2 by erecting a land bridge 3 by pouring soil into flowing water with suction projectiles 4 from the watercourse 5. Preliminary between the upper and.- ./1L the discharge bay of overflow 6 block a discharge slot 7 and along her - reserves of 8 soil. Before the washout of the gap 2, the jumper 9 is disassembled in the discharge slot 7 and a part of the stream 1 is passed through it. Due to the presence of a drop formed by the earth bridge 3 at a high flow rate and short length Slot occurs self-soil. In order to increase the volume of soil being washed away, his bulldozers 10 move from 20 reserves to the discharge slot 7. The slot stream blurs and feeds this soil into the hole 2, where it is washed down in the form of a cone 11. Simultaneously with the alluvial of cone 11, the removal of 35 alluviums of lintel 3 with sumping projectiles 4 is carried out until the riverbed 1 is completely closed. After the river flow is closed, the slot is closed. Claim I. The method of blocking the river bed by injecting, which consists in supplying the soil to the stream above its transporting capacity and subsequent blocking of the hole with additional soil supply, is distinguished by the fact that, in order to increase its efficiency by increasing the saturation of the stream by the soil, They preliminarily form an unloading slot connecting the upper and lower pools in the section of the block, and the additional feeding of the soil is carried out by self-rinsing when a part of the stream passes through the said slot. 2. The method according to claim I, characterized in that in the slot section dump ground reserves discharged into it when the flow is bypassed. Sources of information taken into account during the examination i USSR Author's Certificate No. 140371, cl. E 02 B 7/06, 1961.

2. USSR author's certificate No. 97520, cl. E 02 B 7/06, 1952.

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