CN216194029U - Water drainage prevention bridge deck structure - Google Patents

Abstract

The utility model provides a waterproof and drainage bridge deck structure, which comprises: the bridge structure comprises a cement concrete layer paved on a bridge deck, concrete anti-collision walls arranged on two sides of the bridge deck, and a waterproof bonding layer arranged above the cement concrete layer; a first asphalt horseshoe fat rubble layer, a second asphalt horseshoe fat rubble layer and a third asphalt horseshoe fat rubble layer are sequentially laid above the waterproof bonding layer, and adhesive layer oil is respectively sprayed between the first asphalt horseshoe fat rubble layer and the second asphalt horseshoe fat rubble layer and between the second asphalt horseshoe fat rubble layer and the third asphalt horseshoe fat rubble layer; and a spiral wrapping wire drain pipe is laid on one side above the waterproof bonding layer, and broken stones are laid around the spiral wrapping wire drain pipe. The utility model has the following beneficial effects: the bridge maintenance system has the advantages that the service life of the bridge can be prolonged, the service quality of the bridge in the operation period is improved, the operation safety of the bridge is guaranteed, the maintenance work of the bridge is fundamentally reduced, the maintenance cost of the bridge in the whole life cycle is reduced, and the effects of cost reduction and efficiency improvement are achieved.

Description

Water drainage prevention bridge deck structure

Technical Field

The utility model relates to the technical field of road and bridge structures, in particular to a waterproof and drainage bridge deck structure.

Background

In recent years, the overall level of the highway built in China is remarkably improved no matter the highway is designed according to the standard or the construction process, however, the highway is usually damaged in early days after being driven for less than one year, and the most harmful highway is water damage. For asphalt pavement, because of high porosity and no waterproof function, the infiltration and retention of water under the combined action of temperature and load not only cause the loosening, the peeling and the pit damage of a surface layer, but also cause the softening and the strength reduction of a base layer due to the infiltration of water, thereby inducing the further serious damage of the surface layer. In addition, in road construction, various bridges occupy a considerable proportion of the total highway mileage, and problems such as water seepage of the overpass bridge deck, peeling of a pavement layer, breakage of a bridge deck and the like often occur in actual engineering. Studies have shown that water infiltration is one of the most direct and important causes of these failures. In order to protect the deck slab, prevent the ruts or the tracks from directly wearing the deck and disperse the concentrated load of the wheels, cement concrete and asphalt concrete are generally used for paving the deck, and in order to meet the use requirements of good waterproofness, good stability, good crack resistance, good durability and good interlayer cohesiveness, a waterproof layer is generally arranged between the paving layers of the deck.

The bridge floor waterproof layer is a material layer which is arranged for preventing rainwater and snow water from entering the bridge floor and water from infiltrating into a bridge body, a bridge and other water to damage the bridge body. At present, bridge deck waterproof layers in cold regions are mostly made of thermal SBS modified asphalt materials, early bridge deck pavement damage is easy to occur, durability is poor, and driving safety is affected.

SUMMERY OF THE UTILITY MODEL

The utility model provides a waterproof and drainage bridge deck structure, which solves the problems of early water damage of a cement concrete bridge deck and poor integral durability of a bridge deck pavement structure in the prior art.

The technical scheme of the utility model is realized as follows:

a water drainage resistant bridge deck structure comprising: the bridge structure comprises a cement concrete layer paved on a bridge deck, concrete anti-collision walls arranged on two sides of the bridge deck, and a waterproof bonding layer arranged above the cement concrete layer; a first asphalt horseshoe fat rubble layer, a second asphalt horseshoe fat rubble layer and a third asphalt horseshoe fat rubble layer are sequentially laid above the waterproof bonding layer from bottom to top, and adhesive layer oil is respectively sprayed between the first asphalt horseshoe fat rubble layer and the second asphalt horseshoe fat rubble layer and between the second asphalt horseshoe fat rubble layer and the third asphalt horseshoe fat rubble layer; and a spiral wrapping wire drainage pipe is laid on one side above the waterproof bonding layer, and broken stones are laid around the spiral wrapping wire drainage pipe.

Preferably, the corners of the concrete anti-collision wall are adhered with hot-melt rubber asphalt seals.

Preferably, the waterproof adhesive layer is formed by combining a silica sand layer, a heating coating type asphalt waterproof material layer and an adhesive layer in this order from top to bottom.

Preferably, the first asphalt horseshoe resin crushed stone layer is a sand type asphalt concrete layer with the thickness of 2 cm, and the second asphalt horseshoe resin crushed stone layer and the third asphalt horseshoe resin crushed stone layer are fine particle type asphalt concrete layers with the thickness of 3.5 cm.

Preferably, waterproof mortar is filled at the corner between the hot-melt rubber asphalt seal and the concrete anti-collision wall.

The utility model has the beneficial effects that:

the bridge floor drainage layer can prolong the service life of a bridge, improve the service quality of the bridge in the operation period, ensure the operation safety of the bridge, radically reduce the maintenance work of the bridge, reduce the whole life cycle construction cost of the bridge, and achieve the effects of cost reduction and efficiency improvement.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic cross-sectional view of a waterproof and drainage bridge deck structure according to the present invention;

fig. 2 is an enlarged structural view at a in fig. 1.

In the figure:

1. bridge deck slab, 2, cement concrete layer, 3, concrete anticollision wall, 4, hot melt type rubber asphalt strip of paper used for sealing, 5, waterproof adhesive linkage, 6, first pitch horseshoe fat metalling, 7, second pitch horseshoe fat metalling, 8, third horseshoe fat metalling, 9, clay layer oil, 10, spiral wrap up in a silk drain pipe, 11, rubble, 12, waterproof mortar.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As can be seen from the embodiments shown in fig. 1 to 2, a waterproof and drainage bridge deck structure according to the present invention comprises: the bridge structure comprises a cement concrete layer 2 paved on a bridge deck 1, concrete anti-collision walls 3 arranged on two sides of the bridge deck 1 and a waterproof bonding layer 5 arranged above the cement concrete layer 2; a first asphalt horseshoe fat rubble layer 6, a second asphalt horseshoe fat rubble layer 7 and a third asphalt horseshoe fat rubble layer 8 are sequentially laid above the waterproof bonding layer 5 from bottom to top, and bonding layer oil 9 is respectively sprayed between the first asphalt horseshoe fat rubble layer 6 and the second asphalt horseshoe fat rubble layer 7 and between the second asphalt horseshoe fat rubble layer 7 and the third asphalt horseshoe fat rubble layer 8; a spiral wrapped wire drain pipe 10 is laid on one side above the waterproof bonding layer 5, and broken stones 11 are laid around the spiral wrapped wire drain pipe 10.

The spiral wrapped-wire drain pipe 10 is a phi 25-specification spiral wrapped-wire drain pipe. The above-mentioned adhesive layer oil 9 adopts modified asphalt material.

The corner of the concrete anti-collision wall 3 is stuck with a hot-melt rubber asphalt seal 4.

The waterproof adhesive layer 5 is formed by combining a silica sand layer, a heating coating type asphalt waterproof material layer and an adhesive layer from top to bottom in sequence.

The first asphalt horseshoe resin crushed stone layer 6 is a sand type asphalt concrete layer with the thickness of 2 cm, and the second asphalt horseshoe resin crushed stone layer 7 and the third asphalt horseshoe resin crushed stone layer 8 are fine particle type asphalt concrete layers with the thickness of 3.5 cm. The above-mentioned clay layer oil 9 is PCR type quick-cracking cationic emulsified asphalt.

And waterproof mortar 12 is filled at the corner between the hot-melt rubber asphalt seal 4 and the concrete anti-collision wall 3.

Before laying the waterproof bonding layer 5, firstly removing floating slurry on the surface of the cement concrete layer 2, milling for 5 cm, removing floating slag on the surface, and airing.

Above-mentioned bridge floor waterproof construction can increase bridge life, promotes bridge operation phase service quality, and guarantee bridge operation safety has reduced the work of bridge maintenance from the root, reduces bridge life cycle and builds the maintenance cost, reaches the effect of cost reduction increase.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (5)

1. A waterproof and drainage bridge deck structure, comprising: the bridge deck comprises a cement concrete layer (2) paved on a bridge deck plate (1), concrete anti-collision walls (3) arranged on two sides of the bridge deck plate (1), and a waterproof bonding layer (5) arranged above the cement concrete layer (2); a first asphalt horseshoe tallow crushed stone layer (6), a second asphalt horseshoe tallow crushed stone layer (7) and a third asphalt horseshoe tallow crushed stone layer (8) are sequentially laid above the waterproof bonding layer (5) from bottom to top, and viscous layer oil (9) is respectively sprayed between the first asphalt horseshoe tallow crushed stone layer (6) and the second asphalt horseshoe tallow crushed stone layer (7) and between the second asphalt horseshoe tallow crushed stone layer (7) and the third asphalt horseshoe tallow crushed stone layer (8); a spiral wrapped wire drain pipe (10) is laid on one side above the waterproof bonding layer (5), and broken stones (11) are laid around the spiral wrapped wire drain pipe (10).

2. Waterproof and drainage bridge deck structure according to claim 1, wherein the corners of the concrete anti-collision walls (3) are adhered with hot-melt rubber asphalt seals (4).

3. A water-repellent bridge deck structure according to claim 1, wherein said water-repellent adhesive layer (5) is composed of a silica sand layer, a heat-coat type asphalt water-repellent material layer, and an adhesive layer in this order from top to bottom.

4. A water-repellent bridge deck structure according to claim 1, characterized in that said first layer of bituminous horseshoe tallow rubble (6) is a sand-type layer of bituminous concrete with a thickness of 2 cm, and said second layer of bituminous horseshoe tallow rubble (7) and said third layer of bituminous horseshoe tallow rubble (8) are fine-grained layers of bituminous concrete with a thickness of 3.5 cm.

5. A water-proof and drainage bridge deck structure according to claim 2, wherein the corners between the hot-melt rubber asphalt seal (4) and the concrete crash wall (3) are filled with water-proof mortar (12).

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