RU1772317C - Drain - Google Patents

Abstract

Usage: the invention can be used to intercept the filter stream of polluted water from industrial waste storage. SUMMARY OF THE INVENTION: A drain contains a water supplying element 1, laid in a trench across the filtering stream 2 and covered with a filtering backfill, and a water receiving element. The water receiving element is made in the form of cavities 3 filled with filter material and arranged in plan at an angle to the water conducting element 1. The ground stream 2 moves in the direction of the water conducting element 1 and is intercepted by the inclined cavities 3, then discharged outside the drain. 3 ill.

Description

Thebes. 2

The invention relates to hydraulic engineering and can be used to protect urban areas and industrial sites from underflooding with groundwater, in particular, composed of loess soils,

The aim of the invention is to reduce the material consumption of the drain and the volume of earthwork.

In FIG. 1 shows a drain in plan; in FIG. 2 - section AA zhfig. 1; in FIG. 3 - section bB in FIG. 1,

The drain includes a tubular water supply element 1, laid in a trench across the soil stream 2, and cavities 3 filled with filter material connected to element 1. The depth of filling of cavities 3 decreases with distance from element 1 to the drainage rate. In terms of planes, the cavities 3 are also located at an angle to the element 1. For the most complete interception of the stream 2 above the water supply element 1, additional water-receiving elements from the filter bed are placed between the points of attachment of the cavities 3. The distance between the points of attachment of the cavities 3 to the element 1 is equal to the projection of their length onto the longitudinal axis of the water conducting element 1,

In order to reduce the consumption of material at the water intake element, the latter is made of variable height, increasing towards the middle between adjacent strips, - st. 3.

Drena works as follows. In the direction of the water supply element 1, the soil stream 2 moves. The presence of cavities 3 filled with filter material and located at an angle to the direction of flow 2 ensures the interception of groundwater and their entry into the tubular element 1. At the same time, part of the groundwater that has passed past the cavities 3 is intercepted by water reception elements and also enters the water supply element 1, through which they are discharged outside the drain.

Claims (1)

1. Drain, including a water supply element, laid in a trench with filtering backfill and hydraulically connected water receiving element located along the slope of the trench from the side filtration flow, characterized by the fact that, in order to reduce material consumption and the volume of earthwork, the water intake element is made in the form of cavities filled with filter material, arranged in plan at an angle to distance to the water supply element from each other, equal to the projection of their length on the longitudinal axis of the water supply element. the one 2, Drain according to claim 1, characterized in that the depth of the filtering backfill in the trench between adjacent cavities increases to the middle Fig, / Fig.Z