CN115627675A

CN115627675A - Structure of sports ground and construction method of plastic track and lawn thereof

Info

Publication number: CN115627675A
Application number: CN202211309887.3A
Authority: CN
Inventors: 田云生; 张晓林; 翟敬博; 贺磊; 贾世文; 鲁奕; 贾金和; 王振; 袁星; 陈宇航
Original assignee: Second Construction Co Ltd of China Construction Eighth Engineering Division Co Ltd
Current assignee: Second Construction Co Ltd of China Construction Eighth Engineering Division Co Ltd
Priority date: 2022-10-25
Filing date: 2022-10-25
Publication date: 2023-01-20

Abstract

The invention relates to the technical field of construction of sports fields, in particular to a structure of a sports field and a construction method of a plastic track and a lawn thereof; the structure is a lawn structure, a drainage ditch and a plastic track structure from inside to outside; the lowest layer is a soil matrix layer; from bottom to top: the plastic track structure sequentially comprises a track base layer and a prefabricated environment-friendly plastic layer, wherein the track base layer comprises a waterproof concrete layer and a fine particle type modified asphalt concrete layer; the lawn structure comprises a lawn base layer and an artificial lawn layer which are provided with a permeation drainage pipe in sequence; the plastic track construction method comprises the steps of paving a plain soil base layer, paving a track base layer and a waterproof concrete layer and a fine grain type modified asphalt concrete layer thereof, and paving a prefabricated environment-friendly plastic layer; the construction method of the lawn comprises the steps of paving a plain soil base layer, paving a lawn base layer provided with a permeation drainage pipe and paving an artificial lawn layer. The permeable construction environment-friendly glue replaces asphalt to protect human health; the waterproof concrete layer isolates the downward erosion of water, and avoids the influence of the sinking of the runway on use.

Description

Structure of sports ground and construction method of plastic track and lawn thereof

Technical Field

The invention relates to the technical field of construction of sports fields, in particular to a structure of a sports field and a construction method of a plastic track and a lawn thereof.

Background

Playgrounds like schools and outdoor sports grounds are common sports grounds, are mainly used for training and competition, and are indispensable parts of schools or cities; a typical sports field consists essentially of an outer ring of plastic track and an inner lawn.

At present, the base layer of the plastic track of the sports ground is generally a traditional cement concrete base layer or an asphalt base layer, and a plastic surface layer is paved on the base layer. The traditional concrete foundation layer has high construction difficulty, difficult control of flatness and easy sanding, and can cause insufficient bonding and infirm bonding of a plastic surface layer and the foundation layer and generation of hollowing (bulging); in rainy days, water in the plastic track can permeate downwards, and in rainstorm days, the water can permeate into an underground soil layer, so that the plastic track is locally sunk, and the use is influenced; the surface temperature of the plastic runway is higher than 70 ℃ after being exposed to the sun in summer, the aging of the plastic surface layer is accelerated by high temperature, the asphalt bonding layer of the most main asphalt base layer is softened, and harmful gas is easily decomposed from the plastic surface layer at high temperature, so that the plastic runway is not beneficial to the health of people. In rainy days, the lawn is used as a football field, because the permeability of the surface of the foundation is poor, water is easy to accumulate, and athletes easily slip and are injured under the action of rainwater and the lawn, so that the use of the lawn as the football field is limited.

Disclosure of Invention

The invention provides a structure of a sports field, a plastic track and a construction method of a lawn, aiming at the technical problems that a plastic surface layer is easy to bulge, the plastic track sinks locally in heavy rain weather and water is easy to accumulate due to poor permeability of the surface of the lawn foundation in the prior art.

In order to achieve the purpose, the invention adopts the technical scheme that: a structure of sports ground comprises an internal lawn structure and a plastic track structure surrounding the lawn structure for one circle; a circle of drainage ditch is also arranged between the lawn structure and the plastic track structure; the lowest layers of the plastic track structure and the lawn structure are all plain soil base layers; the plastic track structure is also provided with a track base layer and a prefabricated environment-friendly plastic layer above the plain soil base layer from bottom to top in sequence; the lawn structure is also provided with a lawn foundation layer and an artificial lawn layer above the plain soil foundation layer from bottom to top in sequence; the runway foundation layer sequentially comprises a gray soil layer, a second gray gravel layer, a waterproof concrete layer and a fine particle type modified asphalt concrete layer from bottom to top; the lawn foundation layer sequentially comprises a graded broken stone layer, reinforced geotextile and a medium-coarse sand layer from bottom to top; the graded broken stone is equipped with the infiltration drain pipe in situ, the infiltration drain pipe extends to the escape canal, and communicates with the escape canal.

The waterproof concrete layer isolates downward erosion of water, and avoids sinking of the runway; the use of asphalt is reduced, and the generation of harmful gas is reduced; when strenghthened type geotechnological cloth has isolated earth, husky, guaranteed that water infiltration downwards, arrange the escape canal behind the rainwater is collected to the infiltration drain pipe.

Preferably, permeable construction environment-friendly glue is coated between the prefabricated environment-friendly plastic layer and the fine particle type modified asphalt concrete layer; the artificial lawn layer comprises a planting soil layer and an artificial lawn paved on the planting soil layer; the permeable construction environment-friendly glue can tightly bond the runway foundation layer and the prefabricated environment-friendly plastic layer together to replace the function of asphalt.

Preferably, the infiltration drainage pipes are distributed along the center of the lawn structure to the periphery, and the height of the infiltration drainage pipes is gradually reduced; make the rainwater collect more high-efficient, can also prevent that the rainwater from appearing being detained, returning and oozing.

Preferably, a water collecting tank which is arranged in the same way as the permeation drainage pipe is arranged below the graded crushed stone layer, and the permeation drainage pipe is arranged in the water collecting tank.

Preferably, the lime to soil volume ratio of the lime to soil layer is 2.

Preferably, a plurality of water collecting wells communicated with the drainage ditches are uniformly arranged below the drainage ditches along the extension direction of the drainage ditches; a well cover is arranged at the position of the drainage ditch, which corresponds to the position right above the water collecting well; rainwater flows into the escape canal from the intraformational infiltration drain pipe in lawn base, and then in the sump pit, the water of sump pit can the reutilization, for example draw out and water on overheated prefabricated environmental protection plastic layer.

The invention also provides a construction method of the plastic track of the sports ground, which is characterized by comprising the following steps:

paving plain soil, and tamping to form a plain soil base layer;

step two, paving and rolling lime-soil with the volume ratio of lime to soil being 2;

thirdly, paving and rolling the lime-fly ash gravel to form a lime-fly ash gravel layer;

step four, pouring impervious concrete to form a waterproof concrete layer;

paving fine particle type modified asphalt concrete to form a fine particle type modified asphalt concrete layer;

sixthly, coating a layer of permeable construction environment-friendly glue on the fine particle type modified asphalt concrete layer, and paving a prefabricated environment-friendly plastic layer on the permeable construction environment-friendly glue;

and seventhly, performing site marking on the paved prefabricated environment-friendly plastic layer, and cleaning to form the plastic track.

Preferably, in the second step, the lime soil is divided into a plurality of layers, and each layer is gradually paved and rolled.

The invention also provides a construction method of the lawn of the sports field, which comprises the following steps:

paving plain soil, tamping to form a plain soil base layer and water collecting troughs, wherein the water collecting troughs are distributed along the center of the lawn structure to the periphery;

step two, setting up a permeation drainage pipe in the water collecting tank, wherein the permeation drainage pipe gradually reduces in height towards the periphery;

thirdly, paving and rolling graded broken stones to form a graded broken stone layer;

fourthly, laying a layer of reinforced geotextile;

fifthly, paving and rolling medium coarse sand to form a medium coarse sand layer;

sixthly, paving a layer of planting soil to form a planting soil layer, and paving an artificial lawn on the planting soil layer;

and step seven, filling plastic particles and cleaning the lawn.

Preferably, the plain soil is paved by a land leveler; the water collecting tank is formed by modeling a land leveler.

Compared with the prior art, the invention has the advantages and positive effects that: (1) The track foundation layer and the prefabricated environment-friendly plastic layer are tightly bonded together through permeable construction environment-friendly glue, so that the use of asphalt is reduced, the generation of harmful gas is reduced, and the health of a human body is protected; (2) The waterproof concrete layer is arranged, so that the downward erosion of water is isolated, and the influence on the use due to the sinking of the part of the runway in the later period is avoided; (3) The reinforced geotextile isolates soil and sandy soil, ensures smooth permeation of water to a lower layer and is convenient to discharge; (4) The infiltration drain pipe collects rainwater and then drains the rainwater into a drainage ditch, and then the rainwater in the water collecting well can be reused, for example, the rainwater is pumped out to be poured onto the overheated prefabricated environment-friendly plastic layer for cooling; (5) The infiltration drain pipe highly reduces gradually all around, makes the rainwater collect more high-efficiently, can also prevent that the rainwater from appearing being detained, back oozing.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced,

FIG. 1 is a top view of a sports arena;

FIG. 2 is a schematic view showing the arrangement of the permeate drain pipe;

FIG. 3 isbase:Sub>A cross-sectional view taken at A-A of FIG. 1;

fig. 4 is a cross-sectional view at B-B in fig. 2.

Description of the reference numerals:

1-plastic track structure;

2-lawn structure; 21-water collecting tank

3-drainage ditch, 31-water collecting well, 32-well cover;

4-a seepage drain pipe;

5-plain soil base layer;

6-a track foundation layer, 61-a lime soil layer, 62-a lime stone layer, 63-a waterproof concrete layer and 64-a fine particle type modified asphalt concrete layer;

7-prefabricating an environment-friendly plastic layer, 71-permeating construction environment-friendly glue;

8-lawn foundation layer, 81-graded broken stone layer, 82-reinforced geotextile and 83-medium coarse sand layer;

9-artificial turf layer, 91-planting soil layer and 92-artificial turf.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein and, therefore, the present invention is not limited to the specific embodiments disclosed in the following description.

Example 1

The invention will be further described with reference to the accompanying figures 1 to 4, in which a sports ground structure comprises an inner lawn structure 2 and a plastic track structure 1 surrounding the outer circumference of the lawn structure 2; a circle of drainage ditch 3 is also arranged between the lawn structure 2 and the plastic track structure 1; the lowest layers of the plastic track structure 1 and the lawn structure 2 are all plain soil base layers 5; the plastic track structure 1 is also sequentially provided with a track base layer 6 and a prefabricated environment-friendly plastic layer 7 from bottom to top above the plain soil base layer 5; the lawn structure 2 is also sequentially provided with a lawn foundation layer 8 and an artificial lawn layer 9 from bottom to top above the plain soil foundation layer 5; the runway foundation layer 6 sequentially comprises a grey soil layer 61, a second grey stone layer 62, a waterproof concrete layer 63 and a fine grain type modified asphalt concrete layer 64 from bottom to top; the lawn foundation layer 8 is sequentially provided with a graded broken stone layer 81, a reinforced geotextile 82 and a medium-coarse sand layer 83 from bottom to top; a permeation drain pipe 4 is arranged in the graded crushed stone layer 81, and the permeation drain pipe 4 extends to the drainage ditch 3 and is communicated with the drainage ditch 3;

the waterproof concrete layer 63 is arranged to isolate the downward erosion of water and avoid partial sinking of the runway in the later period; the use of asphalt as a sticky layer is reduced, and the generation of harmful gas is reduced; when strenghthened type geotechnological cloth 82 had completely cut off earth, husky, guaranteed that water permeates downwards, arrange escape canal 3 behind the rainwater is collected to infiltration drain pipe 4, with the water discharge.

As shown in fig. 3, a permeable construction environment-friendly adhesive 71 is coated between the prefabricated environment-friendly plastic layer 7 and the fine-grained modified asphalt concrete layer 64; the artificial turf layer 9 comprises a planting soil layer 91 and an artificial turf 92 laid thereon.

As shown in fig. 2, the infiltration drainage pipes 4 are arranged along the center of the lawn structure 2 to the periphery, and the height thereof is gradually reduced.

As shown in fig. 2 and 3, a water collecting tank 21 arranged in the same manner as the permeation drainage pipe 4 is provided below the graded crushed stone layer 81, and the permeation drainage pipe 4 is provided in the water collecting tank 21.

The lime to soil volume ratio of the lime to soil layer 61 is 2.

As shown in fig. 2 and 4, a plurality of water collecting wells 31 communicating with the drainage ditch 3 are provided below the drainage ditch 3 at regular intervals of 30m in the extension direction thereof; the drainage ditch 3 is at least provided with a well cover 32 at the position right above the corresponding water collecting well 31; rainwater flows into the drainage ditch 3 from the permeation drainage pipe 4 in the lawn base layer 8 and then flows into the water collection well 31, and water in the water collection well 31 can be reused, such as pumped out to be poured on the overheated prefabricated environment-friendly plastic layer 7.

Example 2

A construction method of a plastic track of a sports ground comprises the following steps:

paving plain soil, tamping until the compaction degree reaches 90% -95%, and forming a plain soil base layer 5;

step two, paving and rolling lime-soil with the volume ratio of lime to soil being 2; the method specifically comprises the following steps: firstly, paving a layer of lime soil with the thickness of about 250mm, compacting, and repeating for four times until the completion;

thirdly, paving and rolling the lime-fly-ash gravel to form a lime-fly-ash gravel layer 62 with the thickness of about 250 mm;

pouring impervious concrete to form a waterproof concrete layer 63 with the thickness of about 100 mm; the impervious concrete can improve the overall rigidity of the runway, prevent water from damaging the base layer, effectively block water erosion and avoid partial sinking of the runway in the later period;

paving fine particle type modified asphalt concrete to form a fine particle type modified asphalt concrete layer 64, wherein the thickness of the fine particle type modified asphalt concrete layer is about 30 mm;

sixthly, coating a layer of permeable construction environment-friendly glue 71 on the fine particle type modified asphalt concrete layer 64, laying the prefabricated environment-friendly plastic layer 7 on the permeable construction environment-friendly glue, and tightly bonding the runway foundation layer 6 and the prefabricated environment-friendly plastic layer 7 together, so that the use of asphalt is reduced, and harmful gas is prevented from being generated in hot days;

and seventhly, performing field scribing on the paved prefabricated environment-friendly plastic layer 7, and cleaning to form a plastic track.

Example 3

A construction method of a lawn of a sports field comprises the following steps:

paving plain soil by a GPS grader, and tamping, wherein the compaction degree reaches 90-95%, so as to form a plain soil base layer 5; meanwhile, a water collecting tank 21 is dug out through the modeling of the GPS grader, and the water collecting tank 21 is distributed along the center of the lawn structure 2 to the periphery; the land leveler has two purposes, so that one step is saved;

step two, setting a seepage drainage pipe 4 with the model number of DN100PE in the water collection tank 21, wherein the height of the seepage drainage pipe 4 is gradually reduced towards the periphery, so that rainwater is collected more efficiently, and rainwater retention and seepage can be prevented;

thirdly, paving and rolling graded broken stones to form a graded broken stone layer 81, wherein the thickness is about 150mm, and the maximum grain size is less than 40mm; graded broken stones are laid on the plain soil base layer 5 and in the water collecting tank 21, rainwater left from the upper layer gradually flows into the seepage drainage pipe 4 of the water collecting tank 21 in the graded broken stone layer 81 and is discharged;

fourthly, laying a layer of reinforced geotextile 82, ensuring that the quality of the geotextile 82 with the size of one square meter is between 110 and 130 grams, and ensuring the smooth permeation of water to the lower layer while isolating soil and sandy soil;

fifthly, paving and rolling the medium coarse sand to form a medium coarse sand layer 83, wherein the thickness of the medium coarse sand layer reaches 100mm up and down;

sixthly, paving a layer of planting soil to form a planting soil layer 91 with the thickness of about 250mm, and paving an artificial lawn 92 on the planting soil layer;

and step seven, filling plastic particles and cleaning the lawn.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may apply the above-mentioned technical details to other fields by using the equivalent embodiments with equivalent changes or modifications, but any simple modification and equivalent changes made to the above embodiments according to the technical spirit of the present invention may still fall within the protection scope of the technical solution of the present invention.

Claims

1. A structure of a sports field is characterized by comprising an internal lawn structure (2) and a plastic track structure (1) which surrounds a circle of the lawn structure (2); a circle of drainage ditch (3) is also arranged between the lawn structure (2) and the plastic track structure (1);

the lowest layers of the plastic track structure (1) and the lawn structure (2) are all plain soil base layers (5); the plastic track structure (1) is also sequentially provided with a track base layer (6) and a prefabricated environment-friendly plastic layer (7) from bottom to top above the plain soil base layer (5); the lawn structure (2) is also sequentially provided with a lawn foundation layer (8) and an artificial lawn layer (9) from bottom to top above the plain soil foundation layer (5);

the runway foundation layer (6) sequentially comprises a grey soil layer (61), a second grey gravel layer (62), a waterproof concrete layer (63) and a fine grain type modified asphalt concrete layer (64) from bottom to top;

the lawn foundation layer (8) is sequentially provided with a graded gravel layer (81), reinforced geotextile (82) and a medium-coarse sand layer (83) from bottom to top;

be equipped with infiltration drain pipe (4) in level gradation gravel layer (81), infiltration drain pipe (4) extend to escape canal (3), and communicate with escape canal (3).

2. A sports ground structure, according to claim 1, characterized in that said layer of pre-fabricated environmental protection plastic (7) is coated with a permeable construction environmental protection plastic (71) between said layer of fine grain modified asphalt concrete (64);

the artificial turf layer (9) comprises a planting soil layer (91) and an artificial turf (92) laid on the planting soil layer.

3. A sports arena structure as claimed in claim 1, wherein the said percolation drain (4) is arranged along the lawn structure (2) from the centre towards the periphery and gradually decreasing in height.

4. A sports arena structure according to claim 3, characterized in that, the graded gravel layer (81) has a water collection tank (21) under it in the same arrangement as the infiltration drainage pipe (4), and the infiltration drainage pipe (4) is arranged in the water collection tank (21).

5. A sports arena structure according to claim 1, characterized in that the lime to soil volume ratio of the lime layer (61) is 2.

6. A sports arena structure according to claim 1, characterized in that, under the drainage ditch (3), along its elongation direction, there are evenly provided a plurality of water collecting wells (31) communicating with the drainage ditch (3); the drainage ditch (3) is provided with a well cover (32) at least at the position right above the corresponding water collecting well (31).

7. A construction method of a plastic track of a sports ground is characterized by comprising the following steps:

step one, paving plain soil, and tamping to form a plain soil base layer (5);

step two, paving and rolling lime soil with the volume ratio of lime to soil being 2;

thirdly, paving and rolling the lime-fly ash gravel to form a lime-fly ash gravel layer (62);

pouring impervious concrete to form a waterproof concrete layer (63);

laying fine particle type modified asphalt concrete to form a fine particle type modified asphalt concrete layer (64);

sixthly, coating a layer of permeable construction environment-friendly glue (71) on the fine particle type modified asphalt concrete layer (64), and laying a prefabricated environment-friendly plastic layer (7) on the permeable construction environment-friendly glue;

and seventhly, carrying out field scribing on the paved prefabricated environment-friendly plastic layer (7), and cleaning to form the plastic track.

8. The method as claimed in claim 7, wherein the second step is a step of dividing the soil into a plurality of layers, and paving and rolling each layer.

9. A construction method of a lawn of a sports field is characterized by comprising the following steps:

step one, paving plain soil, compacting to form a plain soil base layer (5), and digging out the water collecting tank (21) as claimed in claim 4;

step two, setting up a penetration drain pipe (4) according to claim 3 in a water collecting tank (21);

thirdly, paving and rolling graded broken stones to form a graded broken stone layer (81);

fourthly, laying a layer of reinforced geotextile (82);

fifthly, paving and rolling the medium coarse sand to form a medium coarse sand layer (83);

sixthly, paving a layer of planting soil to form a planting soil layer (91), and paving an artificial lawn (92) on the planting soil layer;

and step seven, filling plastic particles and cleaning the lawn.

10. A method as claimed in claim 9, wherein the plain soil is spread by a grader; the water collecting tank (21) is formed by modeling a land leveler.