SU1702886A1 - Runoff-dispersing dike - Google Patents

Abstract

The invention relates to agriculture, namely to protecting the soil of the slopes from water erosion. The purpose of the invention is to improve the absorption by the surface of the runoff. The spraying dam contains a horseshoe shaped shaft 1 of a horseshoe shape, above which the Liman 2 is located along the slope to intercept the flow. From the central part of the shaft, down the slope, there is a spur, from which rollers 3 move symmetrically on both sides, between which the water collectors are located in the form of microliends 5. Molels 6 are made at an angle to the horizontal m that intersects the microliends; slope slope. 2 Il.

Description

v. 1

The invention relates to agriculture, in particular to water pollution from the soils of the slopes. ..- y,:; - ..- /. Zl of the invention -: improved absorption of ..... ..... surface runoff. : -...

, Ya fg. 1 shows a top-spacing dam; figure 2 - section aa: in figure 1. ,: At v,: -...-;

H across the hollow, a dam is constructed with a horseshoe-shaped underwater and a shaft 1 of the soil extracted during formation of the estuary 2. The height of the shaft in the peripheral part is 15–20 cm lower than in the central part. Butting to the center of the horseshoe-shaped shaft down the slope -. they form earth pilots 3, symmetrically moving away from spur A on the central axis of the shaft to the slopes of the hollow. Between the rollers 3, micro-limans suit 5, in the zone of which moles are cut 6 under the corner to the horizontal m, intersecting micro-limans. ,; Water runoff from the peripheral, parts of the dam are intercepted by rollers and accumulate in the zone of micro-limans. Water that is not absorbed in the areas of the estuary and micrlymans / is absorbed by molehills. :: Ooh; ../; uuchuyyv u;. ,,, the Octo-regulating dam of ustzzvzv- -... pour on thalweg sreddyyo expressed 1 -. troughs with the steepness of the slopes of its shores to. 2-3 ° or streams that form

 ; along forest belts, roads and field borders. IIIand ::. The dam depth is determined by the width of the bed of the watercourse and can be 2-3 m. The height of the dam of the dam is determined by the depth of the bed of the watercourse and can be 30-50 cm. The depth of the trench before the dam can also be 30-50 see uy :: U,. ; Wu; Example. Stokore.guliruyuschuyu dam staged on a segment of a hollow with a length of 2 m with a steepness in thalweg (stream of hollow) Ј (, - 1.5 °. The width of the hollow is 15 m. The length of the hollow. Above the dam is 50-60 m dam 0.5 mm.

: At the transverse bed of the watercourse of a hollow of the form: Iiriv a .n and a horseshoe-shaped dam from the soil extracted during the formation of the li-man located in front of the dam. Dam height in the central part. 50 cm, on the periphery 20-25 cm. Dam length 2 m., Width of the shaft over the top 15 cm, at the bottom

30-50 sg-1. The laying of slopes 1-: 1 (dry) and 1: 1.5 (wet). .

The excavation (kanaoa) was stalled in front of the dam (30 cm deep and 10 cm wide). From the central part of the dam, lower along the slope, there are symmetrically laid pairs of rollers, the joining parts of which form a longitudinal spur of 50 cm height. The height of the rollers at the periphery is fO-15 cm. which take 2-3 mole down the slope. The entrance of the molehill is formed at the foot of the roller, i.e. on the surface of the bed of the watercourse. Mole drains with a diameter of 90 mm LLP are performed by the mole. Krotovins are cut to form the peripheral part of the rollers. This allows them to be open to incoming surface runoff. To prevent silting, the holes are covered with straw. .-., .. When tested dam for 6

min completely absorbed 9 m3 of water. The rapid absorption of water was provided by numerous molehills that supply water to the areas adjacent to the hollow on either side of the dam.

. The absorption area formed by the design of the proposed dam allows planning the required absorption intensity of the surface runoff. This is achieved by the fact that the design of the dam has the potential to increase the area of absorption of sediments.

Claims (1)

Claims of the Inventory Spray Dam, containing a water retaining shaft and catchment basins with molehills cut into them, about the same and what it is. In order to improve the absorption of surface runoff, the water retaining shaft is made in the form of a subsoil, above which the slope is formed, the catchment basin is in the form of an estuary, and a spur is formed down the slope from the central part of the shaft from which rollers, between which water collectors are located in the form of micro-limans, and mole cells are made at an angle to the horizontal of meters crossing the micro-limans, with the angle value greater than the slope of the slope. jjjjj i e .., ". V4v:, -.%; Aa P / gg About  Avx &: y, ::,