CN111335112A

CN111335112A - Environment-friendly sponge artificial lawn and construction method thereof

Info

Publication number: CN111335112A
Application number: CN202010233563.0A
Authority: CN
Inventors: 闫宝生
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-27
Filing date: 2020-03-27
Publication date: 2020-06-26
Anticipated expiration: 2040-03-27
Also published as: CN111335112B

Abstract

The invention discloses an environment-friendly sponge artificial lawn and a construction method thereof. The original soil layer is regularly concave-convex (wavy) according to the preset slope-releasing requirement and the interval, a plurality of drainage ditches are arranged at the valley bottoms, filament geotextile isolation layers are laid in the drainage ditches, then corrugated pipes with holes are laid, and the corrugated pipes are wrapped with window screens. The corrugated pipe is connected with a drain pipe, and the drain pipe is connected with a reservoir buried outside the lawn field. The lawn has the advantages that the construction difficulty and the cost are reduced, the back trouble caused by hardening is eliminated, the water permeability is good, the environmental pollution problems of gum, glue bonding, rubber particles and the like of the traditional artificial lawn are avoided, the concept of a sponge body is realized, namely, the reasonable collection and the reutilization of the redundant moisture are realized, the collected moisture can be used for site watering maintenance, and the lawn can also be used for other irrigation watering uses.

Description

Environment-friendly sponge artificial lawn and construction method thereof

Technical Field

The invention belongs to the technical field of artificial turf construction, and particularly relates to an environment-friendly sponge artificial turf and a construction method thereof.

Background

In a traditional artificial lawn construction method, a (cement or asphalt) base layer is generally hardened, then a shock absorption cushion layer is laid, a gum lawn reaching the required density is laid, and finally sand and rubber particles with a certain thickness are filled.

However, the conventional lawn has the following disadvantages:

(1) the construction is not environment-friendly: the base layer of the traditional artificial lawn is generally hardened, various problems caused by hardening such as runoff in a drainage path, higher temperature in summer and the like cannot be avoided, the traditional artificial lawn has extremely high requirements on the material, hardness, flatness and drainage gradient of the base, and relatively speaking, the construction difficulty and the construction cost are high.

(2) The safety performance is low: a large amount of glue and chemical synthetic products are needed in the construction process of the traditional artificial lawn, and artificial synthetic rubber particles are needed to be filled in the artificial lawn, and the components have certain toxic and side effects and subsequent potential safety hazards caused by instability of the components. The method is a great pollution source for the environment, and the recent lawn toxic runway events are not rare.

(3) The motion performance is poor: athletes can perform high-strength violent confrontation on the artificial turf sports field with a hardened foundation, and the probability that ankles and knee joints are subjected to contusion, sprain and other injuries is high.

(4) The system is impermeable: the basis of traditional sclerosis, moisture can't infiltration, and only surface runoff discharges, and moisture can't collect and recycle, and has caused very big waterlogging pressure.

On the basis, the invention provides the planning and construction of the environment-friendly artificial cavernous lawn: the sponge artificial lawn aims at the long-term benefits of human beings as same as the construction of sponge cities, and directly aims at the sustainable utilization of resources and the sustainable development of environment. Emphasis is placed on the preferential use of green, ecologically "elastic" or "flexible" facilities, and on the efficient interfacing with traditional "rigid" facilities. Through 'hardness and softness' combination, a 'sponge body' is established and perfected, and the discharge control and management of runoff rainwater are strengthened, so that multiple targets of relieving site waterlogging, reducing runoff, improving rainwater recycling level, reducing rainstorm waterlogging control cost and the like are achieved, and a sustainable and healthy water circulation system is finally established. Rainwater seeps, stagnates through the sponges, is purified and recycled, and finally residual runoff is discharged outside through a municipal pipe network and a pump station, so that the utilization rate of water can be effectively improved, and the pressure of waterlogging is effectively relieved.

Disclosure of Invention

The invention aims to provide an environment-friendly sponge artificial lawn and a construction method thereof, which are used for solving the problems of the conventional lawn.

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

the utility model provides an environment-friendly artificial turf of cavernosum, the lawn comprises basal layer and artificial grass silk, the basal layer includes lawn bed layer, gravel layer and former soil horizon from top to bottom in proper order, artificial grass silk cuttage is in the lawn bed layer.

Preferably, the original soil layer is wavy (concave-convex design, regular concave-convex is made according to preset slope-placing requirements and intervals), the interval 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, a plurality of drainage ditches are arranged at the valley bottom, the downward-permeated water can be conveniently collected, filament geotextile isolation layers are laid in the drainage ditches, then perforated corrugated pipes are laid, and screen nets are wrapped outside the corrugated pipes.

The corrugated pipe is connected with a drain pipe, and the drain pipe is connected with a reservoir buried outside the lawn field. The cistern is connected with filter equipment, makes the moisture of collecting reach the standard of irrigation water to communicate convenient to use with outside water receiving device.

Preferably, the thickness of the plateau bed layer is 150-300mm, more preferably, the plateau bed layer is a sand layer, and the sand is preferably medium coarse sand which is washed and sieved.

The thickness of the gravel layer is 100-150mm, the gravel is preferably natural-graded gravel, and the particle size of the gravel is preferably 3-5 mm.

Preferably, the cutting depth of the artificial grass filaments is: 100-: 10-30mm, line spacing: 10-30mm, height of grass filaments: 10-30 mm.

The invention also discloses a construction method of the environment-friendly sponge artificial lawn, which comprises the following steps:

(1) firstly, measuring a field needing to be used for building a lawn, cleaning surface sundries, excavating earthwork, manually removing and leveling the sundries, settling and compacting plain soil, paving the plain soil, finishing the terrain again, spraying a chemical control agent, building an isolation retaining wall and the like;

(2) digging a drainage ditch according to the unique drainage design requirement, and then paving a filament geotextile isolation layer on the whole field; paving a corrugated pipe with holes along the dug drainage ditch, wrapping a window screen with the aperture of 0.9mm by the corrugated pipe, and backfilling gravels in the drainage ditch; the corrugated pipe is connected with a site drain pipe, and the drain pipe is connected with a reservoir;

(3) paving gravel: paving 100-150mm thick gravel, after the gravel is conveyed to a feed inlet on one side of a field, paving and finishing the terrain by a molding machine according to the design elevation and requirements, without using a heavy vehicle for transferring, leveling by a laser leveling instrument, adjusting the paving thickness according to the gradient requirement of the concave-convex design of drainage, and ensuring that the thickness from the highest point of the concave-convex design to the surface of the gravel layer is at least 5 cm;

(4) paving sand: paving 150-sand with the thickness of 300mm, and paving the sand by using a molding machine after the sand is conveyed to a feed inlet at one side of the field without using a heavy vehicle for transferring; then a molding land leveler and a sand raking machine are combined with a laser leveling instrument to perform fine molding on the sand surface so as to meet the leveling requirement;

(5) building a reservoir: a reservoir with certain volume is built outside the lawn field and is matched with a filtering device, so that the collected water reaches the standard of irrigation water;

(6) cutting grass shreds: and (4) cutting the preselected grass shreds into the turf bed sand layer by adopting a grass shred cutting machine.

Firstly, the invention keeps various advantages of the traditional artificial turf, and also has the following advantages on the basis of the advantages:

(1) the construction process of the permeable foundation reduces the construction difficulty and cost, eliminates the aftereffects caused by hardening, and the non-hardened permeable foundation is more environment-friendly to construct.

(2) The problems of environmental pollution caused by gum, glue adhesion, rubber particles and the like of the traditional artificial turf are solved.

(3) Greatly reduced the injured risk of sportsman, the influence that the operation reduction of permeable foundation accessible watering brought except artificial turf static, high temperature etc..

(4) The concept of a sponge body, namely reasonable collection and reutilization of redundant water is realized. The collected water can be used for field watering maintenance and can also be used for other irrigation watering.

(5) The unique concave-convex drainage design has the water permeability speed of over 600mm/h, reduces the pressure of waterlogging, and can realize the collection, storage and reutilization of water at the level of heavy rain (the rainfall within 12 hours is 15-29.9 mm, and the rainfall within daily time is 25-49.9 mm) and even heavy rain (the rainfall within 12 hours is 30-69.9 mm, and the rainfall within daily time is 50-99.9 mm).

(6) Because the foundation is built according to the natural grass foundation, the field can be quickly changed into a true and false mixed planting or natural grass field by adopting a certain technical means according to the actual situation.

Drawings

FIG. 1 is a schematic view of the construction of an environmentally friendly sponge artificial turf of the present invention;

fig. 2 is a schematic view of the overall structure of the sponge lawn.

In the figure, 1-original soil layer; 2-gravel layer, 3-terrace bed layer; 4-a drainage ditch; 5-a corrugated pipe; 6-artificial grass filaments; 7-a drain pipe; 8-a water reservoir; 9-a filtration device; 10-water receiving device.

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.

Referring to fig. 1 and 2, an environment-friendly cavernous artificial lawn comprises a base layer and artificial grass filaments 6, wherein the base layer sequentially comprises a lawn bed layer 3, a gravel layer 2 and a raw soil layer 1 from top to bottom, and the artificial grass filaments 6 are inserted in the lawn bed layer 3.

The soil layer 1 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, a plurality of drainage ditches 4 are arranged at the valley bottom to facilitate collection of infiltration water, filament geotextile isolation layers are laid in the drainage ditches 4, then perforated corrugated pipes 5 are laid, and the corrugated pipes 5 are wrapped with window screens.

The corrugated pipe 5 is connected with a drain pipe 7, and the drain pipe 7 is connected with a reservoir 8 buried outside the lawn field. The reservoir 8 is connected with the filtering device 9, so that the collected water reaches the standard of irrigation water, and is communicated with an external water receiving device 10, and the use is convenient.

The thickness of the lawn bed layer is 150-300mm, the lawn bed layer is a sand layer, and the sand is medium coarse sand which is washed and sieved by water.

The depth of the artificial grass filaments inserted into the lawn bed layer is as follows: 100-: 10-30mm, line spacing: 10-30mm, height of grass filaments: 10-30 mm.

The construction method of the environment-friendly artificial sponge lawn comprises the following steps:

1. construction of foundation layer

(1) Measurement: the measurement and paying-off are carried out according to the requirements of each field area of the design drawing, the measuring instrument is checked before paying-off and piling, the accuracy of the measuring instrument is guaranteed, and after the first measurement is finished, the measurement is rechecked again, so that the accuracy and reliability of the measurement result are guaranteed.

(2) Clearing the exterior: the machine such as a digging machine, a loading machine, a transport vehicle and the like is adopted to comprehensively remove trees, stones, telegraph poles, sundries and the like in the field according to the measured paying-off data; when the underground public facilities such as cables, signal lines and the like exist, the underground public facilities are definitely cleared, and if the underground public facilities exist, professional personnel need to cooperate to remove and shift the underground public facilities; the removed sundries are transported to a designated position.

(3) Excavating earthwork: according to the design elevation of the earthwork construction drawing, earth excavation is carried out by adopting machines such as a bulldozer, an excavator, a loader, a transport vehicle and the like, and the excavated residual soil needs to be transported to a specified position.

(4) Removing and leveling artificial impurities: the tree roots, sundries and the like which are not cleaned completely by the machine are manually checked and cleaned, and the ground is manually roughly leveled after the tree roots, the sundries and the like are cleaned.

(5) And (3) concave-convex molding of drainage: the original soil layer is further excavated and filled with earthwork according to the preset layout, slope releasing requirements and spacing to make regular concave-convex required by design, the transverse spacing between valley bottom and valley peak is 8-10m, and the height difference is 50-100mm (namely the gradient is 5-10 per thousand).

(6) Settling and compacting plain soil: tamping basic plain soil for multiple times by adopting modes of water sedimentation, a tamping machine, a large road roller and the like; and leveling the field by adopting a molding machine according to the height of the measuring placing points.

(7) Paving plain soil: in order to ensure the quality of a foundation layer, after the earthwork is finished, a plain soil layer with the thickness of 100mm needs to be paved, and finally the elevation of a site foundation reaches the design requirement; when the plain soil is paved, the paving work is preferably carried out by adopting an excavator, a transport vehicle, a loader and a molding machine.

(8) And (3) finishing the terrain: tamping treatment is carried out for many times by adopting modes of water sedimentation, a tamping machine, a large-scale road roller and the like; the field is rearranged by adopting instruments such as a molding machine, a molding land leveler, a laser leveler and the like according to design requirements, and the finished working surface of fields with strict flatness requirements such as a football field and the like finally reaches 3-5 per thousand of slope, and the error of a 3m ruler is 10 mm; the compaction coefficient requirement reaches 0.95 and passes professional detection.

(9) Chemical control: spraying chemical control agent to carry out chemical sealing of weeds, tree roots and the like; in order to ensure the spraying uniformity and effect, cross spraying is adopted, and the dilution times and spraying amount of the pesticide are met.

(10) And (3) constructing an isolation retaining wall: for example, in a football field, an isolation retaining wall is constructed along the peripheral side line of the buffer zone. Various modes such as brick mixing, sand and stone cement and the like can be adopted, but the requirements of corresponding design indexes are met. And the isolation retaining wall needs to be set to be sloping according to the design requirement.

(11) Sprinkler installation (reserved or installed if required): excavating a sprinkling irrigation pipe ditch according to a sprinkling irrigation design drawing and paving a corresponding sprinkling irrigation pipeline; the excavated sprinkling irrigation pipe ditch is required to follow the requirements of design gradient, depth, width and the like; the bottom of the pipe needs to be leveled by artificial plain soil during laying, so that the bottom of the pipe is prevented from being suspended; when the pipe ditch is backfilled, the pipe ditch is tamped layer by layer, and sundries such as stones and the like cannot be contained in the 300mm periphery of the pipeline.

(12) Excavating blind pipe arranging ditches and laying geotextile: digging a drainage ditch at the concave-convex valley bottom according to the drainage design requirement; then laying 250g/m in the whole field²The filament geotextile isolation layer and the drainage ditch are laid by attaching to the ditch bottom and the ditch wall, the overlapping part of the geotextile joint is more than or equal to 200mm, and the seam is manually folded and finished after being fixed by U-shaped buckles every 2 meters.

(13) Laying blind rows: laying HDPE110 corrugated pipes with holes along the dug blind drainage ditch, wrapping a screen window net with the aperture of 0.9mm by the corrugated pipes, and backfilling natural graded gravel with the particle size of 0.3-0.5cm in the blind drainage ditch; the gravel is required to be basalt or the same material, has hardness, water caltrop and strong stability, and needs to be washed twice outside the field; the blind calandria is connected into a site drainage ditch, and the drainage ditch is connected into a reservoir.

(14) Laying bare copper wires: the laying specification of the football field along the bricked isolation belt and all drainage pipelines is required to be rated voltage 450/750V and 6mm²Bare copper wire; when in laying, the corrugated pipe should be tightly attached to the inner edge of the isolation retaining wall and the drainage corrugated pipe, and the tail end of the corrugated pipe should be folded back by 200 mm; the joint should ensure robustness.

(15) Gravel laying: paving 100-150mm natural graded gravel with the grain diameter of 3-5 mm; adjusting the laying thickness according to the gradient requirement of the concave-convex design of drainage, and ensuring that the thickness from the highest point of the concave-convex design to the surface of the gravel layer is at least 5 cm; the gravel is required to be basalt or the same material, has hardness, water caltrop and strong stability, and needs to be washed twice outside the field; in the same first layer gravel laying process, after gravel is conveyed to a feed inlet on one side of a field, paving and terrain finishing are firstly carried out by adopting a molding machine according to the design elevation and requirements, and a heavy vehicle cannot be used for transferring; leveling by a laser leveling instrument; then rolling by using a vibration road roller; finally, the finished working surface is required to meet the requirements of 3 per mill gradient, 10mm error of a 3-meter straight ruler and laying height; and trimming parts which do not meet the requirements until the requirements are met.

(16) Sand paving: paving 150-300mm thick washing sand meeting the construction standard; in the gravel layer construction process, sand is paved by a molding machine after being transported to a feed inlet at one side of a field, and a heavy vehicle is not required to be used for transportation; then, a molding land leveler and a sand raking machine are combined with a laser leveling instrument to perform fine molding on the sand surface, and finally the finished working surface is required to reach the requirements of 3 per mill gradient, 10mm error of a 3-meter ruler and laying height; and trimming parts which do not meet the requirements until the requirements are met.

(17) Building a reservoir: a certain volume of water storage tank is built according to design requirements, and a certain filtering device is matched, so that the collected water reaches the standard of irrigation water.

2. Grass cutting

The method comprises the following steps of adopting a special grass filament cutting machine (a grass planting machine which is independently developed and is disclosed in the patent of China invention with the authorization publication number CN 106012754B), cutting preselected artificial grass filaments (the special grass filaments with the requirements of environmental protection, good uprightness and good restorability) into a turf bed sand layer, wherein the specific parameters are as follows: depth: 100-: 10-30mm, line spacing: 10-30mm, height of grass filaments: 10-30mm, the density of the grass filaments: can be adjusted (the cutting density meets the requirements of use and lawn observation).

3. Plateau surface treatment

After the grass cutting is finished, a roller press and a grass carding machine are adopted, and certain measures such as water spraying (the foundation is a water permeable foundation, and collected water can be adopted for sprinkling irrigation) operation and the like are combined, so that the grass cutting machine is more smooth and compact and meets the requirements of motion performance indexes such as hardness, torsion, rolling distance, bounce and the like.

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. The utility model provides an environment-friendly artificial turf of cavernosum, its characterized in that, the lawn comprises basal layer and artificial grass silk, the basal layer includes lawn bed layer, gravel layer and native soil layer from top to bottom in proper order, artificial grass silk cuttage is in the lawn bed layer.

2. The environment-friendly sponge artificial lawn as claimed in claim 1, wherein the raw soil layer is wavy, the horizontal 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, a plurality of drainage ditches are arranged on the valley bottom, filament geotextile isolating layers are laid in the drainage ditches, then perforated corrugated pipes are laid, and the corrugated pipes are wrapped with window screens.

3. The environmentally-friendly cavernous artificial lawn of claim 2, wherein the corrugated pipe is connected to a drain pipe, and the drain pipe is connected to a water reservoir buried outside the lawn field.

4. The environmentally friendly sponge artificial lawn of claim 3, wherein the reservoir is connected to the filtering device and is in communication with an external water receiving device.

5. The environmentally friendly sponge artificial lawn of claim 1, wherein the thickness of the lawn bed layer is 150-300 mm.

6. The environmentally friendly sponge artificial turf of claim 1, wherein the turf layer is a sand layer, and the sand is medium coarse sand screened by washing.

7. The environmentally-friendly sponge artificial lawn as claimed in claim 1, wherein the thickness of the gravel layer is 100-150mm, the gravel is natural-graded gravel, and the particle size of the gravel is 3-5 mm.

8. The environmentally friendly cavernous artificial lawn of claim 1, wherein the artificial grass filaments have a cutting depth of: 100-: 10-30mm, line spacing: 10-30mm, height of grass filaments: 10-30 mm.

9. The method for constructing an environmentally friendly cavernous artificial lawn of any one of claims 1 to 8, comprising the steps of:

(1) firstly, measuring a field needing to be used for building a lawn, cleaning surface sundries, excavating earthwork, manually removing and leveling the sundries, settling and compacting plain soil, paving the plain soil, finishing the terrain again, spraying a chemical control agent, and building an isolation retaining wall;

(2) digging a drainage ditch according to the drainage design requirement, and then paving a filament geotextile isolation layer on the whole field; paving a corrugated pipe with holes along the dug drainage ditch, wrapping a window screen with the aperture of 0.9mm by the corrugated pipe, and backfilling gravels in the drainage ditch; the corrugated pipe is connected with a site drain pipe, and the drain pipe is connected with a reservoir;

(3) paving gravel: paving 100-plus-150 mm-thick gravels, after the gravels are conveyed to a feed inlet at one side of a field, paving and finishing the terrain by a molding machine according to the design elevation and requirements, without using a heavy vehicle for transferring, leveling by a laser leveling instrument, adjusting the paving thickness according to the gradient requirement of the original soil layer drainage concave-convex design, and ensuring that the thickness from the highest point of the concave-convex design to the surface of the gravel layer is at least 5 cm;