SU1687722A1 - Canal - Google Patents

Abstract

FIELD OF THE INVENTION The invention relates to hydraulic engineering. The purpose of the invention is to reduce the cost of construction and increase the operational reliability of the channel. A film screen is laid along the perimeter of the notch. At the bottom, a compacted soil cushion 2 is arranged. The slopes and cushion 2 of the channel are covered with reinforced concrete slabs 3. The reinforced concrete slabs rest on blocks 4, which have internal conductive cavities 5. Through the slit b penetrates at an angle the body of the block 4.1 hp f-ly, 4 ill.

Description

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The invention relates to hydraulic engineering construction and can be used in the construction of canals and hydro-ameliorative systems.

The purpose of the invention is to reduce the cost of construction and increase the operational reliability of the channel.

FIG. 1 shows a channel, a plan view; in fig. 2 is a section A-A in FIG. one; in fig. 3 shows the node I in FIG. 1 (mouth |: yuststvo transit junction); ya fig. 4 - a node in FIG. 1 (device for unloading junction of stop blocks).

The channel includes an impervious screen 1, for example, of polyethylene film, a compacted soil cushion 2 at the bottom of a notch, a covering of slopes and bottom with reinforced concrete slabs 3, resistant concrete blocks 4 with an internal water-supplying cavity 5 and a through slot 6 in the body of the block, connected at transit the joints by nozzles 7 and on the unloading joints with tees 8 with a check valve.

The channel is erected as follows.

The design excavation of the channel is made increased by the thickness of the concrete pavement of the slopes and bottom and the height of the dirt pad along the bottom with its widening s both sides according to the size of the base of the thrust blocks. Then, a film anti-friction screen 1 is laid along the perimeter of the notch. A compacted soil cushion 2 is arranged on the bottom, in which the corners at the junction of the bottom with slopes are cut along the trench route under the thrust concrete blocks 4, connected at the joints of transistor sections by nozzles 7, and at the discharge joints - tees 8 with a check valve.

In the grooves on the thrust blocks 4, reinforced concrete slabs 3 are fixed on the sides of the slope and bottom fastenings, the joints between the blocks 4 and the slabs 3, and also between the mountaineers of the slabs 3 are hammered with concrete or cement mortar,

When emptying the canal for the winter period, the water accumulated between the anti-filter screen 1 and the plates 3 of the canal lining flows down the slope to the stop blocks 4 and through the slot 6 into them enters the conductive cavity 5,

which flows through the connecting pipes 7 at the transit sections to the unloading junction 8, where it goes through the check valve to the channel.,

The direction of the drainage slit from the bottom at an angle to the water intake cavity inside the thrust block is essential because the filter water passes a drainage drain with an upward current, which dampens the flow energy and prevents silting up the drainage line, in particular, flowing down the slope filter water.

The proposed channel device prevents slipping of the plates for securing slopes, as well as the destruction of the canal from defrosting in winter, giving the structure of the mount structural stability and operational reliability.

Claims (1)

Invention Formula 1, A channel made with a prothmofiltration screen and slopes protected by a concrete coating, characterized in that, in order to reduce the cost of construction and increase the operational reliability of the channel, it is equipped with stop concrete blocks installed at the base of slopes and embedded in the joints of the blocks fittings, while the thrust concrete blocks are made with a plumbing cavity and a drainage slot in the form of a slot along the block from the base to the plumbing cavity. 2, Channel pop, 1, characterized in that the thrust concrete blocks are connected in a line, with the monolithic water-conductor fittings being made on transit joints in the form of nozzles, and at the discharge joints - in the form of tees with check valves. ilihlihlililihlili 1A U-. OK LD- pV / .p- And .ch EЈ3 piW / 9- . p 7 % And .. i .J p ь ьф.ь- | ь-. (x  if l. . B i.