SU1740528A1 - Under-dam water passage structure - Google Patents

Abstract

Use: for skipping in-. dyes under road mounds. SUMMARY OF THE INVENTION: The device comprises a filter part 2, in the upper part of which channels 1 are made. From above, the filter part and channels are covered with an insulating layer, the ends of which are anchored in the ground. The insulation layer above the channels is slack. 1 il.

Description

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The invention relates to road

construction and can be used in the construction of culverts under road embankments.

The known filtering mound includes a filtering part made of stone, located in a road embankment, an insulating layer located on the surface of the filtering part, a culvert connected to the filtering part of the embankment, a interface layer of the filtering part to the embankment base.

The disadvantage of the known filtering embankment is the increased consumption of materials and the cost in connection with the implementation of a rigid cross-sectional culvert that is combined with the filtering part, working in compression or compression with bending.

In addition, in cases of weak foundations in a known filtering embankment, the culvert pipe has a reduced operational reliability, due to the fact that the rigid structure of the pipe under uneven bottom sediments does not preserve the structure (for example, the seams between the pipe sections are damaged).

The purpose of the invention is to reduce the material and construction costs of the filter embankment, as well as to increase the reliability of the facility.

This goal is achieved by the fact that in the filtering embankment, which includes an insulating layer made of stone, the filtering part is located on the surface of the filtering embankment, an insulating layer combined with a filtering unit, the interface of the filtering part with the embankment base, filtering made in the form of channels located in the filtering part, and the channel overlapping is made of high-strength curvilinear flexible panels arranged with a bulge of one hundred The openings of the channels lie on the filtering part, and the ends of the flexible panels are anchored in the soil of the road embankment.

Flexible overlapping panels can be combined with an insulating layer.

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The drawing shows a filter embankment, a vertical section parallel to the axis of the road.

The filter embankment includes a filtering part 2 made of stone located in the road embankment 1. On the surface of the filtering part 2 there is an insulating layer 3. 6 of the filtering part 2 a culvert construction k is made in the form of channels of a closed section with inclined walls 5 and overlapping 6 of high-strength curvilinear flexible 5 boxes 6 each, arranged with a bulge in the direction of the opening of the culvert building k and resting on the filtering part 2. The ends of flexible half-lean 6 are anchored in the soil of the road embankment 1. Flexible Plates of overlap 6 channels k can be combined with the insulating layer 3.

The overlap 6 of the L channel can be made multi-layered with alternating layers of high-strength panels 6 and soil 7. Anchoring of the ends of flexible panels in the body of embankment 1 can be done, for example, by placing the ends of flexible panels in the ground for a sufficient length or devices at the ends of the panels of the holder 8, filled with soil 9. Flexible panels 6 can be made, for example, of galvanized metal sheets with an insulating anticorrosive layer on their surface or of rolled fiberglass.

In the areas of the supporting flexible panels 6, a soft layer, for example, of geotextile (dornit), can be laid on the filtering part 2 under the flexible panel.

Position 10 marked the horizon of water. Under the filter part 2, a layer of interface 11 with a base 12 is made.

The insulating layer 3 located on the surface of the filtering part 2 can be made of dense, sufficiently durable web material. The purpose of the insulation layer in the structure under consideration is to prevent the embankment soil located above the filtering part from falling into the voids between the particles of the filtering part stone, which excludes the possibility of leaching the soil particles of the filling through the filtering part and silting the filtering hour

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ty (silting of the filtering part would lead to a sharp decrease in the water-carrying capacity of the filtering embankment).

As well as the known filtering mound, including the filtering part and the culvert, the proposed filtering mound due to the implementation in the body of the filtering part of the channels of a closed section has a high water carrying capacity.

Performing a culvert in the proposed filter embankment in the form of channels C, covered with flexible panels 6, reduces the construction cost and material consumption of the structure, improves the reliability of the culvert, in cases of weak base soils, since for a flexible structure the channels are not dangerous non-uniform precipitation of the base.

| The combination of the flexible panels 6 overlapping the channels with the insulating layer 3 allows the flexible panels to perform a double function; blocking the channels and the insulation layer, which increases the efficiency of the construction and reduces the consumption of materials. The essential distinction of the proposed filtering embankment is the combination of features: construction of a culvert in the form of channels located in the filtering parts, with the latter overlapping with high-strength curvilinear flexible panels arranged with a bulge in the direction of the channels opening and resting on the filtering part, and the ends of the flexible panels are anchored in ground mound.

Due to the location of the channels in the body of the filtering part, which is poured out of stone and therefore has sufficient strength and rigidity, it is possible to support the flexible covering directly onto the filtering part.

740528.

A flexible panel covering the channels, laid with a slack in the side of the hole under the action of vertical loads from the weight of the embankment and the moving load} works on stretching. Therefore, high-strength materials (steel sheet, rolled glass fiber} 0 tics) can be used for overlapping, and the thickness of the carrying flexible sheet is usually not more than a few millimeters thick. At the same time, there is no need to build the walls and the bottom of the structure of 15 scarce materials (concrete, reinforcing steel), since the walls of the channels in the stone filter part are sufficiently stable.

20 In flexible panels, overlapping of the channels, with vertical movements of the support sections, practically no additional forces arise, therefore for the proposed construction

25, in contrast to the well-known with rigid reinforced concrete culvert, uneven precipitations of the base are not dangerous. In the case of rigid reinforced concrete pipe with uneven

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the precipitation of the base decreases the reliability of the structure (for example, there may be opening of the seams between the pipe links).

Claims (1)

Invention Formula I A water throughput facility under a placer, containing a filtering part made of stone and located on a pillow, an insulating layer placed on its surface and channels for passing water, characterized in that, in order to reduce the cost of construction and increase reliability in operation weak bases, channels for the passage of water are formed on the surface of the filtering part under the insulating layer, which is located above them with sagging and an anchor in the soil of the embankment with its ends.