CN111330253A

CN111330253A - Novel football field and construction method thereof

Info

Publication number: CN111330253A
Application number: CN202010240233.4A
Authority: CN
Inventors: 闫宝生
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-30
Filing date: 2020-03-30
Publication date: 2020-06-26

Abstract

The invention discloses a novel football field and a construction method thereof. The four-layer vertical design structure is reasonable, so that the indexes of field impact absorption, vertical deformation and the like can meet the requirements of protecting athletes to a greater extent, the requirement on the original field is not strict, special treatment such as hardening and the like is not needed, the construction cost is low, and the popularization is easier.

Description

Novel football field and construction method thereof

Technical Field

The invention belongs to the technical field of football court construction, and particularly relates to a novel football court and a construction method thereof.

Background

Football is the first sport in the world, and has a wide public base. However, the number and the reasonable distribution of the football fields become a great problem restricting the development of the football in China. Therefore, corresponding development plans are developed in China, and according to development targets set by the Chinese football middle and long term development plans (2016-.

At present, the construction modes of the football field are divided into three types, including artificial grass, natural grass and mixed grass planting. The artificial grass is usually constructed by hardening the ground, the construction cost is higher, and particularly, a low-cost artificial lawn system has great pollution and potential safety hazard; although the natural lawn has obvious advantages, the technical threshold for maintenance requirements is also high; the mixed planting grass is the highest technical construction mode at present, combines various advantages of artificial and natural, but has relatively high construction cost and certain difficulty in popularization at present. Therefore, how to directly design a football field which is simple to construct and basically meets the use requirements without using lawn grass becomes a difficult problem to be solved urgently.

Disclosure of Invention

The invention aims to provide a novel football field which can basically meet the use requirement without laying a lawn.

In order to achieve the purpose, the invention adopts the following technical scheme:

a novel football field is composed of a base layer (namely an original soil layer), a gravel drainage layer, a sand layer and a grading mixing layer from bottom to top in sequence.

As the preferable embodiment of the novel football field, the thicknesses of the gravel drainage layer, the sand layer and the grading mixed layer are respectively 10-15cm, 10-15cm and 5-10 cm.

Furthermore, a plurality of drainage ditches are dug in the base layer, filament geotextile isolation layers or impermeable films are laid in the drainage ditches, then drainage pipes are laid, and the drainage pipes are wrapped by window screens.

As one preferable scheme, the base layer is wavy, the transverse distance between the valley bottom and the valley peak is 8-10m, the height difference between the valley bottom and the valley peak is 50-100mm, and the drainage ditch is arranged at the valley bottom.

The tail part of the drainage pipe is directly connected with a municipal drainage pipe or is connected with a reservoir buried outside the football field, and the reservoir is communicated with an external water receiving device.

In order to prevent the sand layer from entering the gravel drainage layer, a layer of separation net is further paved between the sand layer and the gravel drainage layer.

Preferably, the gravel particle size is 0.3-0.5cm, and the natural graded gravel is preferably washed with water.

Preferably, the graded mixing layer is formed by mixing porous ceramsite, filament grass carbon and medium coarse sand; more preferably, the composite material is prepared by mixing 10% of porous ceramsite, 30% of filament grass carbon and 70% of medium-coarse sand in volume ratio.

More preferably, the porosity of the porous ceramsite is more than or equal to 60 percent, and the water content capable of absorbing the weight of the porous ceramsite is more than or equal to 120 percent; the length of the filament turf is required to be more than or equal to 3cm, and the filament turf is natural turf passing the environmental protection standard; the grain diameter of the medium and coarse sand is strictly required to be 0.25-1mm, and the medium and coarse sand must not contain small stones and is washed by water.

The invention also discloses a construction method of the novel football field, which comprises the following steps:

(1) firstly, clearing and filling earth according to the design requirements and the measurement data of a field area on a base layer, and finally enabling the base layer to reach the design elevation and the compaction coefficient (more than or equal to 0.9) through various settlement modes;

(2) digging a plurality of drainage ditches (digging on a base layer, generally 110 drainage pipes, the drainage ditches are required to be 200cm by 200cm), paving filament geotextile isolation layers or impermeable films in the drainage ditches, paying attention to the adhesion degree during paving, then paving the drainage pipes, and wrapping window screens outside the drainage pipes; the tail part of the drainage pipe is directly connected with a municipal drainage pipe or is connected with a reservoir buried outside the football field for recycling; finally, paving a layer of gravel with the particle size of 10-15cm, and paving;

(3) laying a sand layer on the gravel drainage layer; the conditioned site can be selected to lay sand meeting the USGA standard in the United states, if the USGA requirement cannot be met, the gap bridge coefficient requirement is met with the gravel layer, and when the selected sand cannot meet the gap bridge coefficient, a layer of separation net is laid before the sand is laid to prevent the sand from entering the gravel layer. Of course, no matter what kind of sand must be washed by water and the requirement of drainage parameters is met;

(4) finally, a graded mixing layer is laid on the sand layer; and (5) uniformly paving according to a preset height, and finally rolling the whole field by using a road roller.

The invention has the following advantages:

1. the invention has low requirement on the original site, does not need special treatment such as hardening and the like, has low construction cost and is easier to popularize;

2. the invention designs the whole football field into four layers and is provided with the gravel drainage layer, thus completely meeting the requirement of rapid drainage (more than or equal to 300 mm/h);

3. the surface layer is a graded mixing layer, meets the sports performance requirements of a football field (the rebound rate of the football reaches 15-55 percent, the rolling distance is 4-12m), almost does not need excessive maintenance, and can be rolled and watered in due time (a more smooth surface can be obtained by rolling and watering, and the problem of overhigh surface temperature is better solved by watering); the porous ceramsite is added to absorb water with the weight more than or equal to 120 percent, and the water is slightly added before the porous ceramsite is used at a higher temperature period to keep the field at a proper temperature and stabilize the whole football field; under certain maintenance of rolling and simple repair, the use frequency is almost not limited;

4. because the upper and lower design structure of four layers is reasonable, the top-down is: the graded mixing layer, the sand layer, the gravel drainage layer and the base layer ensure that indexes such as field impact absorption, vertical deformation and the like can meet the requirement of protecting athletes to a greater extent (the impact absorption is more than or equal to 60 percent, and the vertical deformation is less than or equal to 10 mm);

5. the invention belongs to a non-hardened foundation, does not need frequent watering maintenance of a natural lawn, and can effectively control the surface hardness to be a reasonable value, thereby better serving the sports body (the hardness of the hardened foundation of the artificial lawn is very high, the natural lawn needs frequent watering maintenance, and the hardness of the lawn bed is higher along with the increase of the humidity)

6. If the lawn needs to be planted, the surface mixed layer is only slightly processed, and then the lawn is quickly paved or planted, so that the lawn can be quickly and freely converted to a natural field, and the lawn is simple and practical.

7. The invention can design the foundation layer to be wavy (concave-convex drainage design, and the foundation layer is concave-convex according to the preset slope releasing requirement and the interval), the water permeable speed of the design scheme can reach more than 600mm/h, the pressure of waterlogging is reduced, and the collection, storage and reutilization of moisture in the grade of heavy rain (the 12-hour rainfall is 15-29.9 mm, the daily rainfall is 25-49.9 mm) and even heavy rain (the 12-hour rainfall is 30-69.9 mm, and the daily rainfall is 50-99.9 mm) can be realized.

Drawings

Fig. 1 is a schematic structural view of an embodiment of the soccer field of the present invention;

fig. 2 is a schematic structural view of another embodiment of the soccer field of the present invention.

In the figure, 1-a base layer, 2-a gravel drainage layer, 3-a sand layer, 4-a graded mixing layer, 5-a drainage ditch and 6-a drainage pipe.

Detailed Description

The present invention will be described in detail below with reference to specific examples. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. The description which follows is a preferred embodiment of the invention, but is made for the purpose of illustrating the general principles of the invention and not for the purpose of limiting the scope of the invention. The scope of the present invention is defined by the appended claims.

Example 1

Referring to fig. 1, the novel football field is composed of a base layer 1, a gravel drainage layer 2, a sand layer 3 and a grading mixing layer 4 from bottom to top in sequence. A plurality of drainage ditches 5 are excavated in the base layer 1, filament geotextile isolation layers or impermeable films are laid in the drainage ditches, then drainage pipes 6 are laid, and the drainage pipes are wrapped with window screens. The tail part of the drainage pipe is directly connected into a municipal drainage pipe or is connected with a reservoir buried outside the football field, and the reservoir is communicated with an external water receiving device. In order to prevent the sand layer from entering the gravel drainage layer, a layer of separation net is further paved between the sand layer and the gravel drainage layer.

As a preferred embodiment of the novel football field, referring to fig. 2, the base layer is wavy, the transverse distance between the valley bottom and the valley peak is 8-10m, the height difference between the valley bottom and the valley peak is 50-100mm, and the drainage ditch is arranged at the valley bottom of the base layer 1, the water permeable speed of the design scheme can reach more than 600mm/h, the pressure of waterlogging is reduced, and the collection, storage and reuse of water at the level of heavy rain (15-29.9 mm rainfall in 12 hours, 25-49.9 mm rainfall in daily life) or even heavy rain (30-69.9 mm rainfall in 12 hours, 50-99.9 mm rainfall) can be realized.

In addition, the thicknesses of the gravel drainage layer, the sand layer and the grading mixed layer are respectively 10-15cm, 10-15cm and 5-10 cm. More preferably: the thicknesses of the gravel drainage layer, the sand layer and the grading mixed layer are respectively 10cm, 15cm and 10 cm.

The gravel selected in this example had a particle size of 0.3-0.5cm and was water washed natural graded gravel. The graded mixing layer is formed by mixing porous ceramsite, filament grass carbon and medium coarse sand, belongs to the uppermost layer of the whole court, and is more preferably formed by mixing 10% of porous ceramsite, 30% of filament grass carbon and 70% of medium coarse sand in volume ratio, so that the using effect is better. More preferably, the porosity of the porous ceramsite is more than or equal to 60 percent, and the water content capable of absorbing the weight of the porous ceramsite is more than or equal to 120 percent; the length of the filament turf is required to be more than or equal to 3cm, and the filament turf is natural turf passing the environmental protection standard; the grain diameter of the medium and coarse sand is strictly required to be 0.25-1mm, and the medium and coarse sand must not contain small stones and is washed by water.

Example 2

A novel football field building method comprises the following steps:

(1) firstly, clearing and filling earth according to the field area, the design requirement and the measurement data of the foundation layer, and finally enabling the foundation layer to reach the design elevation and the compaction coefficient (more than or equal to 0.9) through various settlement modes;

(2) digging a plurality of drainage ditches at the positions of the drainage pipes designed in advance (digging on the foundation layer, generally 110 drainage pipes, the drainage ditches are required to be 200cm by 200cm), and paving filament geotextile (250 g/m)²) The isolation layer or a layer of impermeable film is paved, the degree of adhesion is noticed, then the drain pipe is paved, and the outside of the drain pipe is wrapped by a screen window net; the tail part of the drainage pipe is directly connected with a municipal drainage pipe or is connected with a reservoir buried outside the lawn field, and the reservoir is communicated with an external water receiving device for repeated utilization; finally laying 10-15cm of water-washed natural graded gravel with the grain diameter of 0.3-0.5cm, and paving;

(3) laying a sand layer on the gravel drainage layer; the sand layer is paved by 10-15cm, sand meeting the American USGA standard can be selected to be paved on a conditional site, if the USGA requirement cannot be met, the gap bridge coefficient requirement is met with the gravel layer, when the selected sand cannot meet the gap bridge coefficient, a layer of separation net needs to be paved before the sand is paved to prevent the sand from entering the gravel layer, and of course, any kind of sand needs to be washed by water and meets the requirement of drainage parameters;

(4) finally, laying a graded mixing layer with the thickness of 5-10cm on the sand layer; paving uniformly according to a preset thickness, and finally rolling the mixture on the whole field by using a road roller of about 3 tons, so that the graded mixing layer is more stable and the surface is smooth.

By testing the sports performance requirements of the football field, the rebound rate of the football reaches 15-55%, the rolling distance is 4-12m, and the sports requirements can be completely met.

Tests show that the impact absorption is more than or equal to 60 percent, the vertical deformation is less than or equal to 10mm, and the indexes can meet the requirement of protecting athletes to a greater extent;

in practical application, if the surface of the green house is yellow, the green house can be sprayed with a biological environment-friendly greening agent, so that the visual appearance is satisfied.

Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. A novel football field is characterized in that the field consists of four layers, namely a base layer, a gravel drainage layer, a sand layer and a grading mixing layer from bottom to top in sequence.

2. A novel football field according to claim 1, wherein the thicknesses of the gravel drainage layer, the sand layer and the graded mixing layer are 10-15cm, 10-15cm and 5-10cm, respectively.

3. A novel football court according to claim 1, characterized in that the base layer is provided with a plurality of drainage ditches, filament geotextile isolation layers or an impermeable film are laid in the drainage ditches, and then drainage pipes are laid, and the outer sides of the drainage pipes are wrapped with window screens.

4. A novel football pitch according to claim 3, wherein said base layer is undulated, the distance between the bottom of the valley and the peak of the valley is 8-10m, the height difference between the bottom of the valley and the peak of the valley is 50-100mm, and said drainage ditches are provided in the bottom of the valley.

5. The novel football court of claim 3, characterized in that, the drain pipe afterbody directly inserts municipal drainage pipe, or is connected with the cistern of establishing in the football court outside, the cistern with outside water collector intercommunication.

6. A novel football pitch according to claim 1, wherein a layer of screen is also laid between the sand layer and the gravel drainage layer.

7. A novel football court according to claim 1 wherein the graded blend layer is formed by blending porous ceramsite, continuous filament turf and medium coarse sand.

8. A novel football court according to claim 7, wherein the graded mixing layer is formed by mixing 10% porous ceramsite, 30% long-thread turf and 70% medium-coarse sand by volume ratio.

9. A novel football court according to claim 7, wherein the porosity of the porous ceramsite is not less than 60%, the length of the long filament turf is not less than 3cm, and the particle size of the medium coarse sand is 0.25-1 mm.

10. A novel football pitch building method as claimed in any one of claims 1 to 9, including the steps of:

(1) firstly, clearing and filling earth according to field areas, design requirements and measurement data of a foundation layer, and finally enabling the foundation layer to reach a design elevation and a compaction coefficient through various settlement modes;

(2) excavating a plurality of drainage ditches at the positions of the drainage pipes designed in advance, paving a filament geotextile isolation layer or a layer of impermeable film in each drainage ditch, and then paving the drainage pipes, wherein the drainage pipes are wrapped with window screens; the tail part of the drainage pipe is directly connected into a municipal drainage pipe or is connected with a reservoir buried outside the football field, and finally a layer of gravel is paved and laid flat;

(3) laying a sand layer on the gravel drainage layer;

(4) and finally, paving a graded mixing layer on the sand layer, uniformly paving according to a preset thickness, and finally rolling the mixture on the whole field by using a road roller.