CN219470814U - Novel asphalt concrete panel seepage-proofing structure - Google Patents

Abstract

The utility model discloses a novel asphalt concrete panel seepage-proofing structure, wherein a cushion layer is arranged at the bottom of an asphalt concrete panel, a plurality of longitudinal drain pipes are arranged at equal intervals in the cushion layer, transverse drain pipes are arranged between adjacent longitudinal drain pipes, the transverse drain pipes are communicated with the longitudinal drain pipes, the lower ends of the longitudinal drain pipes are provided with converging channels, and the converging channels are communicated with each longitudinal drain pipe.

Description

Novel asphalt concrete panel seepage-proofing structure

Technical Field

The utility model belongs to the field of asphalt concrete panel seepage release, and particularly relates to a novel asphalt concrete panel seepage prevention structure.

Background

In a water conservancy and hydropower engineering pumped storage power station, proper positions of an upper reservoir and a lower reservoir are critical, along with rapid construction and development of a pumping and storage engineering, sites with excellent topography and geological conditions are gradually reduced, engineering development and construction can gradually turn to site resources with general topography and geological conditions and higher development difficulty. Especially when the upper reservoir and the lower reservoir are limited by the geographic and geological conditions, natural channels cannot be utilized, large-scale excavation is needed to form a reservoir, and meanwhile, the seepage prevention of the reservoir basin is particularly important when the geological conditions relate to a large range of soft foundation.

In order to ensure the storage capacity, the excavated reservoir mostly has the conditions of high side slope, poor geological conditions and the like, and the water level frequently drops, so that higher requirements are provided for the stability and the seepage prevention of the side slope. Aiming at the side slope of the pumped storage power station reservoir on the soil foundation, the asphalt concrete panel seepage prevention mode is adopted at present, the problem of uneven settlement of the soil foundation is outstanding, the asphalt seepage prevention layer is easy to crack, and the risk of reservoir seepage damage is increased.

Aiming at the situation, most of asphalt concrete panel cushions adopt gravel cushions, although the bearing capacity of a large-scale soil foundation is solved, the problem of uneven sinking still exists, and meanwhile, deformation damage in a small local range is easy to occur at the reverse arc section of the asphalt panel, the joint with other concrete structures and the like, so that water seepage is caused to enter the soil slope, the bearing capacity of the slope is reduced, and then safety accidents are caused.

Disclosure of Invention

The utility model aims at: the anti-seepage structure is further increased, so that the problem that water seepage enters the soil slope after the asphalt panel is damaged is solved.

The technical scheme adopted by the utility model is as follows:

the utility model provides a novel asphalt concrete panel seepage prevention structure, includes asphalt concrete panel, asphalt concrete panel bottom sets up the bed course, and equidistant a plurality of vertical drain pipes of setting in the bed course set up horizontal drain pipe between the adjacent vertical drain pipe, and horizontal drain pipe both ends all communicate with the vertical drain pipe of corresponding position, and vertical drain pipe lower extreme sets up the passageway that converges, and the passageway that converges all communicates with each vertical drain pipe.

The further technical proposal is that the transverse drain pipe is in an inverted V-shaped structure.

The further technical scheme is that the cushion layer is made of sand-free concrete or broken stone.

The further technical scheme is that the bottom of the cushion layer is provided with composite geotextile.

The further technical scheme is that the asphalt concrete panel comprises an asphalt mastic sealing layer, an asphalt concrete impermeable layer and an asphalt concrete leveling adhesive layer.

A further technical solution is that the converging channel may be a drain pipe or a drain gallery.

In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:

through setting up the bed course in asphalt concrete panel bottom, equidistant a plurality of vertical drain pipes that set up in the bed course, set up horizontal drain pipe between the adjacent vertical drain pipe, and horizontal drain pipe and vertical drain pipe intercommunication, vertical drain pipe lower extreme sets up the confluence passageway, confluence passageway and each vertical drain pipe all communicate, above structure can be behind the condition that asphalt concrete panel destroyed, infiltration bed course's water is collected in confluence passageway through horizontal drain pipe and vertical drain pipe, compare this scheme of single asphalt concrete panel's mode in the prior art through further increasing the structure of prevention of seepage, infiltration entering soil slope after can avoiding asphalt panel to destroy, improve the side slope bearing capacity, safer stable and reliable operation.

Drawings

FIG. 1 is a schematic cross-sectional view of the present utility model;

FIG. 2 is a schematic view of the connection of the longitudinal drain pipe and the transverse drain pipe according to the present utility model;

fig. 3 is a schematic view of the structure of the connection of the longitudinal drain pipe and the confluence passage according to the present utility model.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent.

As shown in fig. 1-3. The utility model provides a novel asphalt concrete panel seepage prevention structure, includes asphalt concrete panel 1, asphalt concrete panel 1 bottom sets up bed course 2, equidistant a plurality of vertical drain pipes 3 that set up in the bed course 2, sets up horizontal drain pipe 4 between the adjacent vertical drain pipe 3, and horizontal drain pipe 4 both ends all communicate with the vertical drain pipe 3 of corresponding position, and vertical drain pipe 3 lower extreme sets up the passageway that converges 5, and the passageway that converges 5 all communicates with each vertical drain pipe 3.

When the drainage pipe is used, the longitudinal drainage pipe 3, the transverse drainage pipe 4 and the confluence channel 5 are arranged on the side slope 10, the confluence channel 5 can be provided with an outer drainage channel, an outlet of the outer drainage channel is lower than the bottom of the side slope and is positioned outside a reservoir, the bedding layer 2 is paved, the bedding layer 2 can be made of sand-free concrete, a crushed stone bedding layer or other possible materials, the asphalt concrete panel 1 is paved on the bedding layer 2, the longitudinal drainage pipe 3 and the transverse drainage pipe 4 adopt a water permeable pipe or a blind ditch pipe, and the confluence channel 5 is a drainage pipe or a drainage gallery.

Through setting up bed course 2 in asphalt concrete panel 1 bottom, equidistant a plurality of vertical drain pipes 3 that set up in the bed course 2, set up horizontal drain pipe 4 between the adjacent vertical drain pipe 3, and horizontal drain pipe 4 and vertical drain pipe 3 intercommunication, vertical drain pipe 3 lower extreme sets up confluence passageway 5, confluence passageway 5 all communicates with each vertical drain pipe 3, above structure can be after the condition that asphalt concrete panel 1 destroyed, the water in the infiltration bed course 2 is collected in confluence passageway 5 and is discharged from outer drainage channel through horizontal drain pipe 4 and vertical drain pipe 3, compare this scheme of single asphalt concrete panel 1's mode in the prior art through further increasing impermeable structure, infiltration entering soil slope after can avoiding asphalt panel to destroy, improve the side slope bearing capacity, make the building can be safer and more reliable. According to the scheme, the non-sand concrete and the longitudinal and transverse drainage pipes are arranged, when the panel impermeable layer is in accident, the seepage water quantity of the reservoir can be effectively collected, the seepage water quantity is dredged and drained in time, the seepage pressure is reduced, and the timely discovery and the treatment of problems are facilitated; the seepage-proofing structure has good integrity, strong bearing capacity and better anti-slip capacity, and can be suitable for seepage proofing of the soil reservoir bank slopes with various gradients.

The transverse drain pipe 4 is in an inverted V-shaped structure. Facilitating the water in the lateral drain 4 to enter the longitudinal drain 3.

The bottom of the cushion layer 2 is provided with a composite geotextile 6, and the composite geotextile 6 is paved before the cushion layer 2 is paved. The composite geotechnical cloth 6 can prevent water seepage from penetrating into the soil foundation, ensures that the water-containing state of the foundation is at a lower level, ensures that the strength of the soil foundation is not reduced, ensures safe and stable operation of engineering, has stronger flexibility and impermeability, can be used as a safe reserve of an impermeable structure, avoids water seepage from entering the soil foundation, and improves the structural safety.

The asphalt concrete panel 1 comprises an asphalt mastic sealing layer 7, an asphalt concrete impermeable layer 8 and an asphalt concrete leveling adhesive layer 9, wherein the leveling adhesive layer is adhered to the sand-free concrete, the sealing layer is the asphalt mastic sealing layer 7, and the thickness is 2mm; the thickness of the impermeable layer can be adjusted according to the water head, the thickness of the leveling adhesive layer can be adjusted according to specific practice, the thickness of the sand-free concrete is 400mm, and the thickness can be adjusted according to specific practice. The drainage pipes phi=100 mm, one drainage pipe is longitudinally distributed for 2-3 m, the transverse blind ditch pipes are arranged in the range of the longitudinal blind ditch pipes every 10-20 m, and the size and the interval of the drainage pipes can be adjusted according to actual conditions.

The foregoing is only illustrative of the preferred embodiments of the present utility model.

Claims (6)

1. The utility model provides a novel asphalt concrete panel seepage prevention structure, includes asphalt concrete panel (1), a serial communication port, asphalt concrete panel (1) bottom sets up bed course (2), equidistant a plurality of vertical drain pipes (3) that set up in bed course (2), set up horizontal drain pipe (4) between adjacent vertical drain pipe (3), and horizontal drain pipe (4) both ends all communicate with vertical drain pipe (3) of corresponding position, vertical drain pipe (3) lower extreme sets up and converges flow channel (5), converges flow channel (5) and all communicates with each vertical drain pipe (3).

2. A new asphalt concrete panel seepage-proofing structure according to claim 1, characterized in that said transverse drain pipe (4) is of inverted "V" shape.

3. A new asphalt concrete panel seepage-proofing structure according to claim 2, characterized in that said bedding layer (2) is sand-free concrete or crushed stone.

4. A novel asphalt concrete panel seepage-proofing structure according to claim 3, wherein the bottom of the cushion layer (2) is provided with a composite geotextile (6).

5. A new asphalt concrete deck permeation protection structure according to claim 1, characterized in that said asphalt concrete deck (1) comprises an asphalt mastic sealing layer (7), an asphalt concrete permeation protection layer (8) and an asphalt concrete leveling cement layer (9).

6. The novel asphalt concrete panel seepage-proofing structure according to claim 1, wherein said confluence channel is a drain pipe or a drain gallery.