DE202020004572U1 - Device for new and reconstruction of sidewalks with integrated rainwater storage space, made with 3 molded parts - Google Patents

Abstract

Device for new and reconstruction of sidewalks with integrated rainwater storage space, manufactured with three molded parts left support wall (1), right support wall (2), (cover plate (3), linear, built in parallel to an overloaded rainwater sewer system, so that a contiguous storage space (4) is created.

Description

The usual construction of a sidewalk takes place with the use of a high board with a concrete back support on the street side in front of the gutter.
At the property line to the private property, a low board is also installed with a concrete back support.
The resulting space is filled with sand up to about 8 cm to the upper edge of the curbs.
Concrete stone slabs or concrete blocks are installed between the shelves at the correct height.
The space between the installed supply lines and the lower edge of the concrete slabs is not used.

Due to climate change, more and more storms with heavy rain and thus flooding of lower-lying residential areas arise.

The existing drainage facilities in the residential areas, such as a rainwater sewer system, are calculated for the discharge of normal rain events. In the event of storms and heavy rain, the amount of water can no longer be safely drained off.

To prevent damage, solutions are being sought in the densely built-up residential areas that enable the heavy rain to be drained off and built up without damage.
With the usual expansion of sidewalks, the space under the sidewalk slabs is unused.
The solution shown below makes it possible to build and convert sidewalks with integrated storage space.

The patent EP 9529881 A2 shows a solution of how the transition point between the sidewalk and the roadway can be made wheelchair accessible.

The patent DE 29 60 2398 U1 describes a composite slab system for pavement expansion and patio slabs.

The patent DE 10 20100611 19 A1 shows a profile of inclined gutter stone system.
It is about the formation of a gutter, in a special construction. There is no connection with a sidewalk extension.

Further property rights for the expansion and conversion of sidewalks with integrated water storage space are not known

In order to relieve an overloaded rainwater sewer system in a residential area, it is necessary that the entire length of the sewer system is linear, parallel to the new expansion described below in order to create storage space

In the case of a new building or renovation, the space between the border of the private property and the edge of the gutter, the existing floor, is inventive
Dug out to the top of the existing pipelines.

Then a floor plan is made and the left retaining wall ( 1 ) and the right retaining wall ( 2 ) Heights installed right.
If the subsurface is stable, in most cases a concrete base is not required due to the widespread feet of the retaining walls.

Then the cover plate ( 3 ) fitted in a fitting manner and receives a force-fit connection at the edges ( 9 ) for example with tongue and groove.

This design creates the rainwater storage space ( 9 ), which can now be used to collect and discharge rainwater (heavy rain) to the lower edge of the slide-in RW drain ( 6th )).

The slide-in RW process ( 6th ) is installed obliquely downwards at the level of the gutter and filled with cleaning substrate so that impurities such as coarse materials, heavy metals, phenols, oils and PAHs, and microplastics are retained or bound.
The slide-in RW process ( 6th ) receives an emergency overflow ( 7th ).

The cover plate ( 3 ), which is usually made of concrete, can be attached to the surface with various non-slip profiles ( 5 ) are executed

If the street has a longitudinal gradient of more than 0.5%, a barrier plate ( 10 ) in order to avoid water drainage to lower lying areas and thus loss of storage space.

A fleece mat is covered with substrate over the existing pipelines, at the height of the feet of the supporting walls ( 8th ) built-in. The accumulated rainwater can also be cleaned over this area, suspended matter can be retained and seep into the subsoil to enrich the groundwater level.

With this construction method shown, the space in the sidewalk area can be used sensibly to relieve the existing drainage facilities.

Further details can be seen from the drawing.

List of reference symbols

1

Left retaining wall

2

Right retaining wall

3

Cover plate

4th

Rainwater storage space

5

Surface different profiles

6

Slide-in RW drain

7th

Emergency overflow

8th

Fildermatte with substrate

9

Tongue and groove

10

Shut-off plate

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• EP 9529881 A2 [0005]
• DE 29602398 U1 [0006]
• DE 102010061119 A1 [0007]

Claims (10)

Device for new and reconstruction of sidewalks with integrated rainwater storage space, manufactured with three molded parts left support wall (1), right support wall (2), (cover plate (3), linear, built in parallel to an overloaded rainwater sewer system, so that a contiguous storage space (4) is created. According to the Claim 1 characterized in that the feet of the supporting walls (1 + 2) are given a wide support so that the load is taken up by the floor without failure of the device. According to the Claim 1 characterized in that the surface (5) of the cover plate (3) can be produced with different profiles According to the Claim 1 characterized in that at the level of the gutter, a slide-in RW drain (6) is installed pointing downwards at an angle to drain and clean the accumulating rainwater from the street. According to the Claim 1 characterized in that the slide-in RW drain (6) is 3/4 filled with substrate in order to filter out and bind impurities such as phenols, oils, heavy metals, polymeric hydrocarbons and microplastics from the rainwater. According to the Claim 1 characterized in that the slide-in RW drain (6) is provided with an emergency drain (7) above the substrate filling. According to the Claim 1 characterized in that a filter mat (8) covered with cleaning substrate is installed at the level of the feet of the supporting walls above the existing pipelines in order to hold back possible suspended matter and allow the accumulated rainwater to seep away. According to the Claim 1 characterized in that a tongue and groove connection (9) is provided in the head area of the supporting walls (1 + 2) in order to keep the entire device statically stable. According to the Claim 1 characterized in that the cover plate (3) can be easily removed by machine, so that after many years the filter mat (8) can be easily replaced and possible new pipelines can be laid underground. According to Claim 1 characterized in that with a longitudinal gradient of the road of more than 0.5%, a shut-off plate (10) is to be installed at different distances across the flow direction of the dammed water in order to prevent drainage to lower lying areas.

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