DK165378B - PROCEDURE FOR SUBMISSION OR LIFTING OF A SURFACES OF SURFACE WATER - Google Patents

Description

in

DK 165378B

The invention relates to a method for lowering and a method for raising a drain grate relative to a buried drain for receiving surface water from surrounding surfaces.

5

The fixing of a grate over a drain in such a way that the upper surface of the grate is aligned with adjacent surfaces of a roadway, a parking lot, a square, an airport runway and similar areas is associated with 10 comprehensive adjustment measures, and this is particularly the case. in the case of a setting of the drain grate after the adjacent surfaces have been paved or when the asphalt has worn down and the grate must therefore be lowered to achieve the desired degree of alignment. This alignment is necessary to ensure that the surface water flows from the surrounding surfaces to the drain and also to prevent the drain grate protruding above the surface, thereby constituting a nuisance to the traffic. The need to adjust the drain grate also exists in cases where the grate must be lifted relative to the surrounding 20 surfaces, such as when laying new asphalt on these surfaces.

By the methods of the present invention, the upper surface of the grating can be adjusted very quickly and easily to the desired level with respect to the surrounding surfaces, and likewise the drain grating can also be easily and quickly adjusted if the level of the surrounding surfaces is to be lowered or raised. . This is achieved by a method according to the invention, characterized in that in the characterizing part of claims 1 or 2.

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The invention is further described below with reference to the ignition, wherein FIG. 1 is a cross-sectional view of a drain according to the invention, and FIG. 2 is a top view of the drainage grid.

2

DK 165378B

When digging a concrete drain into the surface from which surface water is to be removed, a concrete mass 4 is placed on top of the upper edge surfaces of the drain to obtain a rough alignment of the upper surface with respect to the surrounding surface, thereby ensuring that the drain 1 has a appropriate slope of slope for the water to be removed. For the casting of this concrete mass 4, a casting frame board 6 can be used, which however is removed after installation is completed. On top of the concrete mass 4, a bitumen mass 3 is laid and on top of this mass 3 the drain grate 2 with downwardly projecting legs is placed inside the drain 1, however, of the flanges 7 of the grate 2 resting on the bitumen mass. Through holes 5 in the flanges 7, bitumen mass is applied until the upper surface of the grating 2 is substantially aligned with the surrounding surfaces. Then, the drain grate 2 is drummed until completely aligned with the surrounding surfaces, whereby excess bitumen pulp 3 is pressed out through the holes 5 and subsequently removed from the surface of the grate 2. The disclosed method of the invention provides a simple and very quick method of obtaining the drain grate in relation to the surrounding surfaces. The grating can be set to a lower or higher level by abrading the surrounding surfaces or possibly laying new asphalt.

25 If the surrounding surface has been worn down and the drain grate 2 is to be lowered, the drain grate 2 is heated to a temperature of approx. 100 ° C, thereby heating the bitumen mass 3 simultaneously. The drain grate 2 is then drummed down until its upper surface is aligned with the surroundings, with portions of the bitumen pulp 3 being pushed out through the holes 5 until the alignment is achieved. Excess bitumen pulp is then removed.

In order to lift the drain grate 2 so as to achieve alignment of the upper surface with respect to new asphalt on the surrounding surfaces, the drain grate 2 is also heated until the connection between the bitumen mass 3 and the underside of the flanges 7 is released. Then the drain grate 2 is lifted to the desired level

Claims (2)

15 Patent claims. A method of lowering a drain grate in feed to a buried drain to receive surface water from surrounding surfaces, characterized in that the grate (2) is heated to a temperature of approx. 100eC, so that the bitumen mass (3) between the grate and the drain is simultaneously heated so that the grate (2) is lowered by a downward force until the grate is aligned with the surrounding surfaces, whereby excess bitumen mass (3) escapes through holes (5) in the flanges (7) of the grate (2) and then removed. A method of raising a drain grate relative to a buried drain for receiving surface water from surrounding surfaces, characterized in that the grate (2) is heated to such an extent that it is released from the bitumen mass (3) between the grate and the drain, that the grate (2) is then lifted to the desired level, that the space between the grate (2) and the upper surface of the bitumen (3) is then filled with an additional 35 bitumen mass and that the grate (2) is then drummed until it is obtained. alignment with the surrounding surfaces, thereby removing any excess bitumen mass which is forced up through the holes (5) in the flanges (7) of the grate.