RU2705121C1 - Drainage device - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: invention relates to bridge construction and can be used in device for drainage from bridge span. Drainage device includes a water drain pipe fixed on the span, a funnel with a grid, water outlets and a flange base with a central hole and support platforms, lower end of funnel arranged in drainage tube, waterproofing of bridge roadway, drain mixture and sealant along perimeter of funnel. Upper part of the funnel is made in the form of a box-type receiving hopper with a grid and located along the perimeter of drain holes. Flanged base rests on waterproofing of drivable bridge driveway by means of support platforms. Support platforms are attached to waterproofing of bridge roadway by additional layer of waterproofing, which is overlapped on waterproofing of bridge roadway. Upper part of box funnel bin has height equal to pavement thickness.

EFFECT: disclosed drainage device.

3 cl, 3 dwg

Description

The invention relates to bridge construction and can be applied to a drainage device from a roadway span.

A drainage device is known, including a drainage pipe with a head and internal shoulders, a funnel with a grill and drainage holes, layers of waterproofing, drainage mixture and sealant around the perimeter of the funnel. The funnel has a flange with a central hole and supporting platforms, with which it rests on the layer of drainage mixture of pavement, and the lower end of the funnel freely rests on the inner supporting shoulders of the drain pipe and has drainage holes around the perimeter / 1 /.

A disadvantage of the known drainage device is the weak attachment of the funnel to the span structure, as a result of which, after several years of operation, the drainage mixture under the funnel is destroyed and the funnel is distorted. The asphalt pavement around the funnel is damaged, drainage is disrupted, and the cost of periodic restoration of the drainage device is required.

The objective of the present invention is to eliminate the above disadvantages, which will provide high reliability of pavement and unhindered water drainage from the carriageway of the bridge and water draining through asphalt throughout the life of the bridge.

The problem is solved due to the fact that in the drainage device, including a drainage pipe fixed to the span, a funnel with a grill, drainage holes and a flange base with a central hole and supporting platforms, the lower end of the funnel located in the drainage pipe, waterproofing the carriageway of the bridge, drainage mixture and sealant around the perimeter of the funnel, the upper part of the funnel is made in the form of a box-shaped receiving hopper with a grate and drainage holes located around the perimeter, flanges its base is supported by supporting platforms on the insulating layer of the carriageway of the bridge span, and the supporting platforms are attached to the waterproofing of the carriageway of the bridge with an additional layer of waterproofing overlapping on the waterproofing of the carriageway of the bridge, and the top of the funnel - box-shaped receiving hopper has a height equal to the thickness of the road clothes.

The drain pipe may have a constant diameter in height.

The top of the funnel is lowered to 3 mm.

The invention is illustrated in the drawing, where:

- in FIG. 1 shows a drainage device, side view, section along the central axis;

- in FIG. 2 shows a funnel, side view;

- in FIG. 3 shows a drainage device in FIG. 1, view 1-1.

The drainage device 1 allows you to collect water from the waterproofing level 2 of the span 3 and from the top of the pavement 4 of the carriageway of the bridge.

The drainage device 1 includes a drainage pipe 5 of constant diameter in height, which is attached to the span 3.

Funnel 6, is made integral in height from two interconnected parts. The upper part 7 of the funnel 6 is made in the form of a box-shaped receiving hopper with a flanged base 8, a grill 9 and provided with drainage holes 10 located along the perimeter.

The flange base 8 has a Central hole 11 and supporting platforms 12, based on the waterproofing 2 of the span 3 and attached to it with an additional layer of waterproofing 13, overlapped on the waterproofing 2 of the span 3 .. The lower part of the funnel 6 is made in the form of a constant cylinder the height of the diameter is attached to the flange base 8 of the upper part 7 of the funnel 6 and is located inside the drain pipe 5.

The upper part 7 - the box-shaped receiving hopper has a height equal to the thickness of the pavement 4 and may have a decrease of up to 3 mm in the upper level. A layer of drainage mixture 15 is laid along the outer perimeter of the box-type receiving hopper. To prevent destruction of the asphalt concrete pavement in the area where the pavement adjoins the drainage device, a sealant 16 is laid over the drainage mixture 15, made, for example, of polymer-bitumen mastic of the type Izhora BP-G50.

Source of information taken into account: - “VT-150 Drain Pipe”, manufactured by LLC “Levsha and Ko”, WWW.Levsha-info /.

Claims (3)

1. A drainage device, including a drainage pipe fixed to the span, a funnel with a grill, drainage holes and a flange base with a central hole and bearing pads, the lower end of the funnel placed in the drainage pipe, waterproofing the carriageway of the bridge, drainage mixture and sealant around the perimeter of the funnel characterized in that the upper part of the funnel is made in the form of a box-shaped receiving hopper with a grate and drainage holes located around the perimeter, a flange base The supporting platforms are based on the waterproofing of the carriageway of the bridge span, and the supporting platforms are attached to the waterproofing of the carriageway of the bridge with an additional layer of waterproofing overlapping on the waterproofing of the carriageway of the bridge, and the top of the funnel - the box-shaped receiving hopper has a height equal to the thickness of the pavement. 2. A drainage device according to claim 1, characterized in that the drainage pipe has a constant diameter in height. 3. A drainage device according to claim 1, characterized in that the level of the top of the funnel is lowered to 3 mm.

Images