CN209482427U - A through-wall concealed pipe drainage structure - Google Patents

Abstract

The utility model discloses a through-wall concealed pipe drainage structure, which comprises a side ditch for planting grass and soil with hanging nets, a through-wall concealed pipe located below the side ditch for planting grass and soil with hanging nets, and inspection wells arranged at intervals. The ditch includes the ditch, the geonet for fixing the surface soil, and the vegetation layer for planting vegetation. The wall of the through-wall concealed pipe is provided with wall holes. The inspection well is connected with the through-wall concealed pipe. The height of the bottom is lower than that of the through-wall dark tube. The drainage structure of the utility model can realize the rapid infiltration of soil side ditch water into the wall-penetrating hidden pipe, and does not collect water in the soil side ditch, effectively improving the drainage and water seepage capacity of the soil side ditch; The drainage structure is inspected and maintained, and when there is heavy rainfall, the rainwater in the through-wall concealed pipe flows into the well, which further improves the drainage capacity and takes into account the dredging function; planting grass on the surface soil of the soil side ditch plays a role of beauty and greening It realizes the effective unity of drainage facility functionality and landscape.

Description

A through-wall concealed pipe drainage structure

technical field

The utility model relates to the technical field of highway engineering drainage facilities, in particular to a through-wall concealed pipe drainage structure.

Background technique

In highway engineering construction, drainage ditch is an important drainage facility in drainage system. Drainage ditches in highway engineering construction refer to the ditches set up on both sides of the roadbed to collect and drain running water from the road surface, road shoulders and side slopes. Existing drainage ditches are generally in the form of rectangle, triangle, trapezoid, etc. According to the road engineering grade, hydrology, geology, drainage length and other conditions of the location of the construction project, the drainage ditches can take different shapes and sizes.

In existing highway projects, the drainage ditch materials generally adopt masonry materials such as masonry masonry, cast-in-place concrete, and precast concrete, and adopt the form of open ditch or cover plate open ditch. However, the drainage ditch in the form of an open ditch can realize the collection of water flow so that the water flow can be quickly discharged into the ditch, and then drained to the off-line drainage facilities or culverts through the longitudinal slope at the bottom of the ditch. However, the landscape is poor, the environmental coordination is not good, and it has a certain impact on driving safety. It is difficult for vehicles to escape by themselves when they enter the ditch.

Utility model content

The purpose of the invention of the utility model is to provide a through-wall concealed pipe drainage structure in view of the problems existing in the prior art. , Low cost and so on.

In order to achieve the above object, the technical solution adopted by the utility model is:

A through-wall concealed pipe drainage structure, comprising a side ditch for grass-planting soil with hanging nets, a through-wall concealed pipe located below the side ditch for grass-planting nets and soil, and inspection wells arranged at intervals, the side ditch for grass-planted nets It includes a ditch body, a geonet for fixing the surface soil, and a vegetation layer for planting vegetation. The wall of the through-wall concealed pipe is provided with wall holes, and the inspection well is connected to the through-wall concealed pipe. connected, the height of the bottom of the inspection well is lower than that of the through-wall hidden pipe.

The drainage structure described in the utility model can realize the rapid infiltration of side ditch water into the wall-penetrating hidden pipe, and does not collect water on the surface of the soil side ditch or in the soil body, effectively improving the drainage and water seepage capacity of the soil side ditch. The installed inspection well is not only convenient for inspection and maintenance of the drainage structure, but also during heavy rainfall, the rainwater in the through-wall concealed pipe flows into the well, which further improves the drainage capacity and also takes into account the dredging function. Planting grass on the surface soil of the soil side ditch plays a role of beauty and greening, and realizes the effective unity of drainage facility functionality and landscape.

As a preferred solution of the present utility model, a well grate is provided on the top of the inspection well, and the well grate is provided with several drainage holes. Rainwater can directly enter the inspection well through the drainage holes, which reduces the erosion of the surface of the soil side ditch and improves the drainage capacity of the drainage structure.

As a preferred solution of the present invention, the top surface of the inspection well is at the same height as the side ditch of the net-planted grass-soil, so that the surface runoff of the net-planted grass-soil side ditch flows directly into the inspection well through the well grate drainage hole.

As a preferred solution of the present utility model, the through-wall concealed pipe is a prefabricated concrete pipe or PE pipe, and the wall hole can be prefabricated when processing the prefabricated concrete pipe or PE pipe, or can be directly drilled and set. The diameter of the wall hole and the setting The spacing is determined according to drainage needs.

As a preferred solution of the present invention, the upper part of the through-wall hidden pipe is laid with a gravel filter layer for filtering impurities in rainwater and avoiding blockage of the through-wall hidden pipe.

As a preferred solution of the present invention, the distance between the bottom of the side ditch of the net-planting grass soil and the filter layer of sand and gravel is greater than or equal to 10 cm.

As a preferred solution of the present utility model, all the inspection wells are arranged at intervals of 20m-50m.

As a preferred solution of the utility model, it also includes anti-seepage geotextiles located on the side and bottom of the drainage structure.

In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

The drainage structure described in the utility model can realize the rapid infiltration of side ditch water into the wall-penetrating hidden pipe, and does not collect water on the surface of the soil side ditch or in the soil body, effectively improving the drainage and water seepage capacity of the soil side ditch. The installed inspection well is not only convenient for inspection and maintenance of the drainage structure, but also during heavy rainfall, the rainwater in the through-wall concealed pipe flows into the well, which further improves the drainage capacity and also takes into account the dredging function. The top of the inspection well is provided with a well grate, and the well grate is provided with several drainage holes through which rainwater can directly enter the inspection well, which reduces the erosion of the soil side ditch surface and improves the drainage capacity of the drainage structure. Planting grass on the surface soil of the soil side ditch plays a role of beauty and greening, and realizes the effective unity of drainage facility functionality and landscape.

Description of drawings

Fig. 1 is a schematic cross-sectional view of the through-wall concealed pipe drainage structure described in the present invention.

Fig. 2 is a schematic cross-sectional view of the through-wall concealed pipe drainage structure at the inspection well according to the utility model.

Fig. 3 is a schematic plan view of the through-wall concealed pipe drainage structure described in the present invention.

Marks in the picture: 1-hanging net planting grass soil side ditch, 11-ditch body, 12-geonet, 13-vegetation layer, 2-through-wall hidden pipe, 21-wall hole, 3-inspection well, 31-well grate , 32- drainage hole, 4- gravel filter layer, 5- anti-seepage geotextile, 6- U-shaped nail, 7- pavement structure layer.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in detail.

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

As shown in Figures 1-3, a through-wall concealed pipe drainage structure includes a hanging net planting grass soil side ditch 1 arranged on the ground surface, and a through wall type hidden pipe 2 located below the hanging net planting grass soil side ditch 1 , and inspection wells 3 arranged at intervals of 20m-50m, the inspection wells 3 are connected to the through-wall hidden pipe 2, and the bottom height of the inspection well 3 is lower than the through-wall dark pipe 2. The whole set of drainage structure is provided with an anti-seepage geotextile 5 at the bottom and adjacent to the pavement structure layer 7, and the anti-seepage geotextile 5 at the pavement structure layer 7 is pressed into the surface layer by 10cm.

The side ditch 1 for planting grass with nets is in the form of a shallow saucer-shaped or trapezoidal ditch, and mainly includes a ditch body 11, a geonet 12 for fixing the surface soil, and a vegetation layer 13 for planting vegetation. The geonet 12 adopts a three-dimensional geonet. After the geonet 12 is used to fix the surface soil of the side ditch 1, the grass is planted on the surface soil to beautify, green and protect.

The through-wall concealed pipe 2 can be made of materials such as prefabricated reinforced concrete pipes and PE pipes. The wall holes 21 of the pipe wall can be reserved or directly drilled when the reinforced concrete pipes are prefabricated. Need to be sure. Before the implementation of the through-wall concealed pipe 2, pipe grooves need to be excavated on the road bed, and the anti-seepage geotextile 5 is laid flat, and the depth of the pipe grooves is 1/3 to 2/3 times the pipe diameter.

The inspection well 3 is poured and prefabricated with concrete, and the top opening is provided with a well grate 31, which is prefabricated with reinforced concrete, and a drainage hole 32 is provided, and the diameter of the drainage hole 32 is 2 cm to 5 cm. The elevation of the top of the well grate 31 is the same as that of the bottom of the ditch 1, so that the runoff on the surface of the ditch directly flows into the inspection well 3 through the drainage hole 32 of the grate 31, so as to improve the drainage capacity of the ditch and take dredging into account Function. The through-wall concealed pipe 2 is connected to the inspection well 3 along the water flow direction, and the bottom of the inspection well 8 is 10-20 cm lower than the bottom of the concealed pipe.

Lay the sand and gravel filter layer 4 on the top of the through-wall concealed pipe 2, then fill the plain soil and trim it into a butterfly-shaped or trapezoidal hanging net planting grass soil side ditch 1, the bottom of the ditch is 4 layers away from the sand and gravel filter layer The top is not less than 10cm, and after the geonet 12 is laid on the surface soil, it needs to be fixed with U-shaped nails 6. The U-shaped nails 6 are processed by steel bars with a diameter of 6mm, and the length of the nails is 15cm to 20cm. The geonet 3 is fixed and sprayed or sowed to plant grass. The geonet should meet the technical requirements of relevant current specifications.

The through-wall concealed pipe drainage structure of this embodiment can realize the rapid infiltration or flow of side ditch water into the hidden pipe by setting the underground through-wall concealed pipe and the inspection wells arranged at a certain distance, and does not collect water in the soil side ditch In the case of heavy rainfall, the surface runoff in the soil side ditch can flow into the inspection well through the well grate hole, avoiding the rainwater that cannot directly flow into the through-wall hidden pipe through the soil side ditch to collect on the surface, causing damage to the soil side ditch The scouring of the surface layer effectively improves the drainage and seepage capacity of the soil side ditch. Planting grass on the surface soil of the soil side ditch set on the through-wall concealed pipe plays the role of beauty and greening, and realizes the effective unity of drainage facility functionality and landscape.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (8)

1. A through-wall concealed pipe drainage structure, characterized in that it comprises a hanging net planting grass soil side ditch (1), a through wall type concealed pipe (2) located below the hanging net planting grass soil side ditch (1), And inspection wells (3) that are arranged at intervals, the side ditch (1) of the hanging net planting grass soil (1) includes a ditch body (11) and a geonet (12) for fixing the surface soil body, a vegetation layer (13) for planting vegetation ), the tube wall of the through-wall concealed pipe (2) is provided with a wall hole (21), the inspection well (3) is connected with the described through-wall concealed pipe (2), and the inspection well (3 ) is lower than the bottom of the through-wall hidden pipe (2). 2. A kind of through-wall concealed pipe drainage structure according to claim 1, characterized in that, the top of the inspection well (3) is provided with a well grate (31), and the well grate (31) is provided with several drain holes (32). 3. A through-wall concealed pipe drainage structure according to claim 2, characterized in that the top surface of the inspection well (3) is at the same height as the side ditch (1) for hanging nets and planting grass soil. 4. A through-wall concealed pipe drainage structure according to claim 1, characterized in that the through-wall concealed pipe (2) is a prefabricated concrete pipe or a PE pipe. 5 . The through-wall concealed pipe drainage structure according to claim 1 , characterized in that, the upper part of the through-wall concealed pipe ( 2 ) is laid with a gravel filter layer ( 4 ). 6. A kind of through-wall concealed pipe drainage structure according to claim 5, characterized in that, the distance between the bottom of the ditch (1) and the sand and gravel filter layer (4) is Greater than or equal to 10cm. 7. A through-wall concealed pipe drainage structure according to any one of claims 1-6, characterized in that all the inspection wells (3) are arranged at intervals of 20m-50m. 8. A through-wall concealed pipe drainage structure according to any one of claims 1-6, characterized in that it further comprises anti-seepage geotextiles (5) on the sides and bottom of the drainage structure.