CN102966021B - The construction technology in a kind of equestrian sport place and equestrian sport place - Google Patents

Abstract

The invention discloses an equestrian sports field, which comprises a surface layer of fiber sand, a separation layer for preventing the upper layer of fiber sand from sinking, and a drainage layer at the bottom; stone layer, the single-size crushed stone layer is located above the graded crushed stone layer, and a drainage pipe is arranged below the graded crushed stone layer; the separation layer includes The above asphalt layer, the surface of the asphalt layer is covered with a gravel layer; the fiber sand is laid on the surface of the asphalt layer above the gravel. Using the technical scheme of the invention, the surface layer and the asphalt layer can provide good protection and load bearing for the horseshoe, and the structure of each layer can be quickly water-repelled to meet the needs of equestrian competitions. Moreover, the materials used in the equestrian sports field of the present invention are common and easy to obtain , reducing the cost of construction. The invention also discloses a construction technology of the equestrian sports field.

Description

A kind of equestrian sports field and construction technology of equestrian sports field

technical field

The invention relates to an equestrian sports competition venue, in particular to a dressage competition venue. The invention also relates to a construction technique for an equestrian sports venue.

Background technique

At present, the development of equestrian sports in my country is still in its infancy. Compared with European and American countries, its overall scale, popularity and project influence are much inferior. However, with the development of my country's economy and the improvement of people's living standards, equestrian sports have been further popularized and developed. The people participating in Chinese equestrian sports have gradually developed from past government behaviors to individual behaviors, and more and more people have begun to recognize equestrian sports. The fun, health and nobility of sports have increased the number of people participating in equestrian activities.

Dressage (English name: Dressage), also known as fancy riding and equestrianism, is the basis of equestrian sports and originated in the 4th to 5th centuries BC. At the beginning of the 20th century, this dance step became more artistic and ornamental, gradually became a competitive event, and officially became an Olympic event in 1912.

The dressage competition is held on a flat sandy ground, which requires the competition venue to have a flexible base to protect the horseshoes well. In addition, due to the large area of the competition venue, the drainage system is very important, and the venue cannot be stagnant. At present, the original domestic racecourses are not soft enough, and the drainage performance is poor, and there will be water accumulation; while the foreign competition venues lay a layer of perforated rubber mats under the sand surface, which is elastic and can offset the impact force of the horses when they land , can also play a better drainage effect, but the price is expensive, and there are risks in import procurement.

Contents of the invention

Aiming at the deficiencies of the prior art, the technical problem to be solved by the present invention is to provide an equestrian sports venue with a soft surface layer, capable of protecting horseshoes, good drainage, and low manufacturing cost.

At the same time, the invention also provides a construction technique for the equestrian field.

In order to overcome the defects and deficiencies of the prior art, an equestrian sports venue of the present invention includes a surface layer of fiber sand, a separation layer to prevent the upper layer of fiber sand from sinking, and a drainage layer at the bottom; A stone layer, a graded crushed stone layer and a drainage pipe, the single-size crushed stone layer is located above the graded crushed stone layer, and the drainage pipe is arranged below the graded crushed stone layer; the separation The layer includes an asphalt layer laid on the single-size crushed stone layer, and the surface of the asphalt layer is filled with a crushed stone layer; the fiber sand is laid on the surface of the asphalt layer above the crushed stone layer.

As an improvement of the above technical solution, the fiber sand is composed of young sand, geotextiles and fibers.

As an improvement of the above technical solution, the asphalt layer adopts 10mm-30mm crushed stone asphalt mixture, and the crushed stone layer paved on the surface of the asphalt layer adopts 10mm single particle size crushed stone.

As an improvement of the above technical solution, the single-size gravel layer adopts 20mm single-size gravel.

As an improvement of the above technical solution, the graded crushed stone layer includes 10-20mm crushed stone, 20-40mm crushed stone, 0-10mm crushed stone, and 10-20mm crushed stone: 20-40mm crushed stone: 0-10mm crushed stone Stone weight grading ratio is: 35%: 35%: 30%.

As an improvement of the above technical solution, the drainage pipe is a blind drainage pipe, which adopts a perforated PVC pipe, and wraps the PVC pipe with geotextile and gravel with a single particle size.

In order to overcome the deficiencies in the prior art, the present invention also provides a construction process for an equestrian sports venue, the construction steps of which include:

a. Construction preparation steps, that is, measuring and setting out, leveling the site, and compacting the base soil;

b. Drainage pipe construction steps: After the base soil is compacted, dig out the blind pipe soil ditch, cut the geotextile into the corresponding strip shape according to the size of the blind pipe soil ditch, lay it in the blind pipe soil ditch, lay the geotextile and place it Perforate the finished PVC pipe, and lay single-size gravel in the PVC pipe ditch to outsource the PVC pipe, and set up multiple blind pipes in the site in turn;

c. The construction steps of the graded crushed stone layer, first set up a walkway in the vertical blind ditch on the edge of the site, design the walking route of the working machinery to enter the site from the sidewalk side for construction, and leave the site on the side of the first blind pipe to enter the walkway , after passing through the first blind pipe from the walkway, enter the site on the other side of the blind pipe again for construction, and the working machinery repeats the aforementioned method and enters the site separated by each adjacent blind pipe for construction. After the construction is completed, the working machinery starts from the walking The other end of the sidewalk leaves, and the gravel transport vehicle spreads the graded gravel according to the walking route. After preliminary leveling, the road roller rolls the graded gravel to the design density according to the walking route;

d. In the construction step of single-size gravel layer, the gravel transport vehicle spreads single-size gravel according to the working machine travel route in step c, and the road roller rolls the single-size gravel to the design density;

f, asphalt layer construction step, the paver spreads the asphalt mixture on the single-size gravel layer, the road roller rolls the asphalt surface, and then paves and fills the gravel on the surface of the asphalt layer, preferably 10mm single-size gravel ;

g. The construction step of the fiber sand surface layer, laying fiber sand on the gravel on the surface of the asphalt layer.

As an improvement of the above-mentioned technical scheme, in step f, construct the asphalt layer according to the following method:

a. The paver paves the asphalt mixture at a speed of 5km/h;

b. After paving the asphalt mixture, the road roller rolls the asphalt surface in the order of light first, then heavy, and first edge, then medium. Among them, the rolling wheel width of the road roller is 1/3, and the road roller performs three stages of initial pressing, re-pressing and final pressing. Wheel rolling, and the vibration is running during the initial compaction, and the roller does not vibrate during the secondary compaction and final compaction;

c. After each section of paving is leveled, spray emulsified asphalt on the surrounding edges of the section and other loose asphalt surfaces, and wait for it to dry.

As an improvement of the above technical solution, the asphalt mixture is 10mm-30mm gravel asphalt mixture or AC-13 type asphalt mixture.

As an improvement of the above technical solution, a 14t paver is used to pave the asphalt mixture, and an 8t light road roller is used for rolling.

Preferably, in step b, a plurality of blind pipes are set at intervals of 10m; in step c, the graded crushed stones include 10-20mm crushed stones, 20-40mm crushed stones, 0-10mm crushed stones, and 10 ～20mm gravel: 20～40mm gravel: 0～10mm gravel weight gradation ratio: 35%: 35%: 30%; in step d, the single-size gravel is 20mm single-size gravel . The thicknesses of the above layers are 100mm thick fiber sand surface layer; 60mm thick asphalt layer, 10mm thick gravel layer on the asphalt layer; 100mm thick single particle size gravel layer; 150mm thick graded gravel layer; 150mm, inner diameter 100mm.

The following beneficial effects can be obtained by implementing the technical solution of the equestrian sports field of the present invention: the surface layer composed of fiber yarn is soft and smooth, which can provide good protection for horseshoes, and can effectively and quickly discharge rainwater to the lower layer. Using "asphalt layer, paved with gravel" as the separation layer, compared with the international equestrian perforated rubber cushion, the asphalt gravel material is easy to purchase, the cost is low, and the asphalt layer has a certain bearing capacity, which can offset the impact of horses. The impact force at the time of landing provides proper support and protection for the horse, and the gravel during the period has voids, which can quickly drain the water that drains to this layer to the next layer. The single-size gravel and graded gravel layer as the main drainage structure has excellent drainage performance, can effectively control the flow rate of rainwater in seepage and drainage, and prevent the expensive fiber sand on the ground layer of the equestrian sports field from being washed by rainwater and The effect of being washed away by heavy rain. The drainage pipe is made of perforated PVC pipe, and is wrapped with geotextile and single-size gravel. On the one hand, it can drain water between the bottom dead pipe gravel, and on the other hand, when collecting water, the geotextile can prevent mud from clogging.

Description of drawings

Fig. 1 is the structural representation of a kind of equestrian sports place embodiment of the present invention;

Fig. 2 is a schematic diagram of a working machine walking route in an embodiment of the construction process of an equestrian sports field according to the present invention.

Detailed ways

Embodiments of the present invention are described in detail below.

An embodiment of an equestrian sports ground in the present invention includes a surface layer of fiber sand, a separation layer to prevent the upper layer of fiber sand from sinking, and a drainage layer at the bottom; the drainage layer includes a single particle size gravel layer 3, graded gravel Layer 2 and drainage pipe 1, the single-size crushed stone layer 3 is located above the graded crushed stone layer 2, and the drainage pipe 1 is arranged below the graded crushed stone layer 2; the separation layer It includes an asphalt layer 4 laid on the single-size crushed stone layer, the surface of the asphalt layer is filled with a crushed stone layer 5; the fiber sand 6 is laid on the surface of the asphalt layer above the crushed stone layer 5.

Preferably, the fiber sand is composed of fine sand, geotextiles and fibers. Preferably, the crushed stone paved on the asphalt layer 4 is granite crushed stone, and the particle size of the crushed stone is 10mm. The asphalt layer can use 10mm ~ 30mm crushed stone asphalt mixture, and can also use ordinary asphalt mixture. The so-called asphalt mixture is a general term for the mixture formed by mixing mineral materials and asphalt binder. The so-called AC-13 type asphalt mixture refers to the fine-grained asphalt concrete mixture with a maximum nominal particle size of 13mm crushed stone, usually also called asphalt AC-13, AC refers to densely graded asphalt concrete mixture, and 13 refers to graded asphalt concrete mixture. The nominal maximum particle size is 13mm.

Preferably, the single-size gravel layer 3 is preferably 20mm single-size gravel, and the graded gravel layer 2 includes 10-20mm gravel, 20-40mm gravel, 0-10mm gravel, and 10-20mm gravel : 20-40mm crushed stones: 0-10mm crushed stones weight grading ratio: 35%: 35%: 30%. Preferably, the thicknesses of the above layers are respectively 100mm thick fiber sand surface layer; 60mm thick asphalt layer, 10mm thick crushed stone layer on the asphalt layer; 100mm thick single particle size crushed stone layer; 150mm thick graded crushed stone layer.

Adopting the technical solution of the embodiment of the present invention, the surface layer composed of fiber yarn is soft and smooth, which can provide good protection for horseshoes, and can effectively and rapidly discharge rainwater to the lower layer. Using "asphalt layer, paved with gravel" as the separation layer, compared with the international equestrian perforated rubber cushion, the asphalt gravel material is easy to purchase, the cost is low, and the asphalt layer has a certain bearing capacity, which can offset the impact of horses. The impact force at the time of landing provides proper support and protection for the horse, and the gravel during the period has voids, which can quickly drain the water that drains to this layer to the next layer. The single particle size crushed stone and graded crushed stone layer as the main drainage structure have excellent drainage performance.

According to the main formula for calculating the average flow velocity or head loss along the uniform flow in open channels and pipes:

Flow velocity v=C(RJ) ^0.5 ;

Gratitude coefficient C=(R ^1/6 )/n;

So the flow rate v=(RJ) ^0.5 (R ^1/6 )/n;

In the formula, letters represent:

v: the average velocity of the section;

R: hydraulic radius (m);

J: hydraulic gradient (J=hf/l), hf is the head loss along the flow section l, for constant and uniform flow in open channels, J=i (i is the bottom slope of open channels);

C: Gratitude coefficient;

n: coefficient reflecting the effect of wall roughness on water flow, called roughness coefficient or roughness.

It can be seen from the above that whether the value of n is properly selected has a great influence on the calculation results, which is inversely proportional to the flow rate. Since the roughness coefficient is inversely proportional to the flow velocity, the larger the roughness coefficient, the smaller the flow velocity, and the smaller the coefficient, the greater the flow velocity. Therefore, reducing the roughness value is the key to solid material control in the drainage layer. The most direct influence on the drainage rate of the drainage layer structure is the compactness of the drainage layer (or seepage layer). The greater the compactness, the lower the drainage (seepage) speed; the smaller the compactness, the greater the drainage (seepage) speed.

The gravel with a single particle size is used as the main material in the drainage layer, and the porosity of the stone affects the flow rate. The application of single-size crushed stone in the drainage layer has solved the problem that there is a certain porosity and the compactness cannot be too large in principle. The laboratory test results show that the porosity of gravel with a single particle size of 20mm is 20% to 28%; the porosity of gravel with a single particle size of 10mm is 17% to 26%, so the drainage layer can achieve the effect of water seepage and drainage.

Another thing that affects porosity is stone chips. In the screening ratio of graded crushed stones with a conventional compaction degree of 95%, the mixing ratio of 0-10mm crushed stones: 10-20mm crushed stones: 20-40mm crushed stones is about 35%. : 15%: 45%, the 0-10mm crushed stones are mainly stone chips. Therefore, during construction, cleaning the stone chips of the drainage layer stone is the key to ensure sufficient drainage flow rate. In the technical solution of the embodiment of the present invention, the ratio of 0-10mm crushed stone: 10-20mm crushed stone: 20-40mm crushed stone is adjusted to 30%: 35%: 35%, which can achieve better drainage effect.

In the technical solution of the embodiment of the present invention, by configuring the graded crushed stone layer, the water flow velocity of rainwater in the water seepage layer can be effectively controlled, and the expensive fiber sand on the ground layer of the dressage equestrian sports field can be prevented from being washed by rainwater and heavy rain wash away effect.

In the embodiment of the present invention, a drain pipe 1 is provided below the graded gravel layer for discharging rainwater to the drainage system. The arrows in the drain pipe in FIG. 1 indicate the direction of water flow. Preferably, the drainage pipe is a blind drainage pipe, using a perforated PVC pipe, and wrapping the PVC pipe with a geotextile and a single-size gravel, preferably with a 10mm single-size gravel, by using a geotextile and a single-size gravel. Gravel wrapping, on the one hand, can drain water between the dead pipes at the bottom, and on the other hand, when collecting water, the geotextile can prevent mud from clogging. Preferably, the drainage pipe has an outer diameter of 150mm and an inner diameter of 100mm.

Another embodiment of the present invention is a construction process of an equestrian sports venue, the construction steps of which include:

a. Construction preparation steps, that is, measuring and setting out, leveling the site, and compacting the base soil;

b. Drainage pipe construction steps: After the base soil is compacted, dig out the blind pipe soil ditch, cut the geotextile into the corresponding strip shape according to the size of the blind pipe soil ditch, lay it in the blind pipe soil ditch, lay the geotextile and place it Perforate the finished PVC pipe, and lay single-size gravel in the PVC pipe ditch to outsource the PVC pipe, and set up multiple blind pipes in the site in turn;

c. The construction steps of the graded crushed stone layer, first set up a walkway in the vertical blind ditch on the edge of the site, design the walking route of the working machinery to enter the site from one end of the walkway for construction, and leave the site on the side of the first blind pipe to enter the walkway , after passing through the first blind pipe from the walkway, enter the site on the other side of the dead pipe again for construction, and the working machinery repeats the aforementioned method and enters the site separated by each adjacent blind pipe for construction. After the construction is completed, the working machinery starts to walk The other end of the sidewalk leaves, and the gravel transport vehicle spreads the graded gravel according to the above-mentioned running route. After preliminary leveling, the road roller rolls the graded gravel according to the above-mentioned running route to the design density; specifically, as shown in Figure 2 As shown, Fig. 2 is a schematic diagram of the walking route of the working machine in an embodiment of the construction process of the equestrian sports venue of the present invention. The working machine enters the site from the entrance 71 at one end of the sidewalk 7 for construction, and leaves the site on the left side of the first blind pipe 61 to enter The walkway 7, after passing through the first blind pipe 61 from the walkway, enters the site on the right side of the blind pipe 61 again for construction. Pipes (not shown in the figure) are constructed at intervals. After the construction of all the fields is completed, the working machines leave from the sidewalk exit 72. Using such a walking route can protect the blind pipe and avoid damage to the dead pipe by the working machine; the gravel in this step is preferably 10-20mm gravel: 20-40mm gravel: 0-10mm gravel weight grading ratio is 35%:35%:30%;

d. The construction step of the single-size gravel layer, the gravel transport vehicle spreads the single-size gravel according to the working machine travel route in step c, and the road roller rolls the single-size gravel to the design density; this step It is preferred to pave 20mm single-size gravel;

f, asphalt layer construction step, the paver spreads the asphalt mixture on the single-size gravel layer, the road roller rolls the asphalt surface, and then paves and fills the gravel on the surface of the asphalt layer, preferably 10mm single-size gravel;

g. The construction step of the fiber sand surface layer, laying fiber sand on the gravel on the surface of the asphalt layer.

Preferably, in step b, a plurality of blind pipes are set at intervals of 10m; PVC pipes are outsourced with 10mm single particle size gravel; when processing and installing perforated pipes, since the blind pipes are outsourced with 10mm single particle size gravel, the aperture It should not be too large. Use an 8mm drill bit to make holes in the PVC pipe with a hole spacing of 100mm, which can be arranged in plum blossoms along the pipe surface. PVC pipe joints adopt special PVC joints. When laying gravel with a single particle size of 10mm in the PVC pipe ditch, after each section of gravel is laid, a special person must be arranged to cover it with geotextiles to prevent the gravel from being polluted.

Preferably, in step f, construct the asphalt layer according to the following method:

a. The paver paves the asphalt mixture at a speed of 5km/h;

b. After paving the asphalt mixture, the road roller rolls the asphalt surface in the order of light first, then heavy, and first edge, then medium. Among them, the rolling wheel width of the road roller is 1/3, and the road roller performs three stages of initial pressing, re-pressing and final pressing. Wheel rolling, and the vibration is running during the initial compaction, and the roller does not vibrate during the secondary compaction and final compaction;

c. After each section of paving is leveled, spray emulsified asphalt on the surrounding edges of the section and other loose asphalt surfaces, and wait for it to dry.

Preferably, the asphalt mixture is 10mm-30mm gravel asphalt mixture or AC-13 type asphalt mixture.

Preferably, a 14t paver is used to pave the asphalt mixture, and an 8t light road roller is used for rolling.

In the technical scheme of the equestrian field of the present invention, the gravel with a single particle size of 20 mm in the drainage layer of the equestrian sports field belongs to the granular body, and its compactness cannot reach the first-class road standard of 95%, and it can only rely on dense graded gravel The base layer serves as its semi-rigid underlying layer to have higher compressive properties. However, since the crushed stone layer with a single particle size of 20mm is a flexible base layer, although it can withstand a certain amount of stress and strain resistance when combined with a semi-rigid base layer, due to the inconsistent deformation compatibility of the upper and lower layers, the gravel layer with a single particle size will spread on the ground. Paving the asphalt layer will easily lead to quality problems such as looseness of the asphalt layer, cracking or insufficient pressure bearing capacity of the surface layer. It is difficult to overcome the above defects if the general method of manual emulsified asphalt paving is used. However, according to the above method of machine paving asphalt The completed asphalt layer can form a non-loose, hardened and load-bearing asphalt surface layer.

Specifically, controlling a 14t paver to pave asphalt at a speed of 5km/h can achieve a uniform asphalt paving effect. If the rolling speed is too fast, the compactness of the gravel layer will be insufficient, and if the rolling speed is too slow, it will be too dense and cause The drainage effect is not good, so the speed must be controlled within a certain range. Of course, the speed of the paver should not be too fast during the initial paving stage. Generally, it is better to control it at 2-3m/min. After starting, check the coordination of each part of the paver and make adjustments. , turn to normal paving, adjust the paving speed as needed, and control the speed within 5km/hour. In addition, when the paver is paving, the width of the paving machine should be 5-6m. After the paver is positioned, the ironing device should be preheated to avoid roughening the construction surface. When the temperature of the mixture meets the paving temperature, pour the material to Paver hopper for paving. After the asphalt is paved, the road roller will carry out rolling in the order of light first, then heavy, and first edge, then medium. The specific rolling temperature and speed are shown in the following table:

When rolling with a road roller, the width of the rolling wheel is 1/3, and an 8t light-duty road roller is used for the initial pressure to vibrate and walk, and the re-pressure and final pressure do not vibrate to avoid affecting the cohesive force of the asphalt. Using this rolling method, Asphalt can achieve a good bonding effect and has a coarse-grained appearance. After each section of asphalt paving is leveled, the asphalt is still loose at the edge because there is no constraint around the edge, so after the asphalt mixture is dry, spray emulsified asphalt on the edge and other places where the asphalt is loose, and wait for emulsification After the asphalt is completely dry, the previously loose asphalt macadam surface layer has a good bonding effect and is no longer loose. It can pass the acceptance of equestrian experts and meet the requirements of equestrian competitions.

In the above-mentioned technical scheme of paving the asphalt layer, because of the AC-13 type asphalt mixture, the stone chips on the gravel surface have been treated by the screening, heating, and dust removal in the process of processing, so the stone chips inside are large Part of it is the remaining mineral powder, which is beneficial to improve the bonding between asphalt and gravel, which is better than manual mixing. In addition, the raw material of asphalt AC-13 has been graded before leaving the factory, which reduces the problem of loose asphalt layer.

Using the above method of constructing the asphalt layer, the paved asphalt is solidly bonded, the effect is good, and it is not loose. It can provide load for the horseshoe, offset the impact force of the horse when it lands, and overcome the problem of spreading on the loose gravel permeable layer. Asphalt laying is difficult to form and has low bearing capacity, and the formed voids can quickly drain water. Since the asphalt layer is paved on a soft foundation such as a 20mm single particle size crushed stone layer, although according to the above-mentioned technical scheme, an asphalt surface layer with bearing capacity can be formed, but it cannot be paved densely like the dense subgrade of a municipal road. The sealing layer of the asphalt oil film cannot be formed, but the voids with hydrophobicity are formed. However, it is the asphalt layer in this case that can meet the quality requirements of "bearing capacity, not loose, and hydrophobic" for equestrian sports venues.

Adopting the embodiment of the construction technology of a kind of equestrian sports field of the present invention overcomes the difficulty of paving asphalt on the loose stone material layer, and the completed equestrian sports field fully exerts the characteristics of low compactness of single particle size crushed stone, making Each layer of structure can be quickly hydrophobic, and can have a certain bearing capacity, which can protect the horseshoe well, and the materials used are convenient and common, and there is no need for expensive perforated rubber pads, which greatly reduces the cost of construction.

What is disclosed above is only a preferred embodiment of the present invention, and of course it cannot limit the scope of rights of the present invention. Therefore, equivalent changes made according to the patent scope of the present invention still fall within the scope of the present invention.

Claims (7)

1. A kind of equestrian sports ground, it is characterized in that: described equestrian sports ground comprises the surface layer of laying fiber sand, the separating layer that prevents upper floor fiber sand from sinking and the drainage layer that is positioned at the bottom; The drainage layer includes a single-size crushed stone layer, a graded crushed stone layer and a drain pipe, the single-size crushed stone layer is located above the graded crushed stone layer, and the drain pipe is arranged at the grade Below the gravel layer; The separation layer includes an asphalt layer laid above the single-size crushed stone layer, and the surface of the asphalt layer is filled with a crushed stone layer; the fiber sand is laid above the crushed stone layer on the surface of the asphalt layer; The asphalt layer adopts 10mm-30mm crushed stone asphalt mixture, and the crushed stone layer paved on the surface of the asphalt layer adopts 10mm single particle size crushed stone; The single particle size crushed stone layer adopts 20mm single particle size crushed stone; The graded crushed stone layer includes 10-20mm crushed stone, 20-40mm crushed stone, 0-10mm crushed stone, and the weight grading ratio of 10-20mm crushed stone: 20-40mm crushed stone: 0-10mm crushed stone is: 35%: 35%: 30%. 2. The equestrian sports field according to claim 1, characterized in that: the fiber sand is composed of young sand, geotextile and fiber. 3. The equestrian sports field as claimed in claim 1, characterized in that: the drainage pipe is a blind drainage pipe, which adopts a perforated PVC pipe, and wraps the PVC pipe with geotextile and gravel with a single particle size. 4. A construction technique for an equestrian sports venue, characterized in that it comprises the following construction steps: a. Construction preparation steps, that is, measuring and setting out, leveling the site, and compacting the base soil; b. Drainage pipe construction steps: After the base soil is compacted, dig out the blind pipe soil ditch, cut the geotextile into the corresponding strip shape according to the size of the blind pipe soil ditch, lay it in the blind pipe soil ditch, lay the geotextile and place it Perforate the finished PVC pipe, and lay single-size gravel in the PVC pipe ditch to outsource the PVC pipe, and set up multiple blind pipes in the site in turn; c. The construction steps of the graded crushed stone layer, first set up a walkway in the vertical blind ditch on the edge of the site, design the walking route of the working machinery to enter the site from one end of the walkway for construction, and leave the site on the side of the first blind pipe to enter the walkway , after passing through the first blind pipe from the walkway, enter the site on the other side of the dead pipe again for construction, and the working machinery repeats the aforementioned method and enters the site separated by each adjacent blind pipe for construction. After the construction is completed, the working machinery starts to walk The other end of the sidewalk leaves, and the gravel transport vehicle spreads the graded gravel according to the walking route. After preliminary leveling, the road roller rolls the graded gravel to the design density according to the walking route; d. In the construction step of single-size gravel layer, the gravel transport vehicle spreads single-size gravel according to the working machine travel route in step c, and the road roller rolls the single-size gravel to the design density; f, the asphalt layer construction step, the paver spreads the asphalt mixture on the single-size gravel layer, the road roller rolls the asphalt surface, and then paves and fills the gravel on the surface of the asphalt layer; G, construction step of fiber sand surface layer, lay fiber sand on the crushed stone on the surface of the asphalt layer; In step c, the graded gravel layer includes 10-20mm gravel, 20-40mm gravel, 0-10mm gravel, and 10-20mm gravel: 20-40mm gravel: 0-10mm gravel weight The grading ratio is: 35%: 35%: 30%; In step d, the single-size gravel layer adopts 20mm single-size gravel; In step f, 10mm single-size gravel is paved on the surface of the asphalt layer. 5. The construction technique of the equestrian sports field as claimed in claim 4, is characterized in that: in step f, according to the following method construction asphalt layer: a. The paver paves the asphalt mixture at a speed of 5km/h; b. After paving the asphalt mixture, the road roller rolls the asphalt surface in the order of first light, then heavy, and first edge, then medium. Among them, the width of the rolling wheel of the road roller is 1/3, and the road roller performs three stages of initial pressing, re-pressing and final pressing. Wheel rolling, and the vibration is running during the initial compaction, and the roller does not vibrate during the secondary compaction and final compaction; c. After each section of paving is leveled, spray emulsified asphalt on the surrounding edges of the section and other loose asphalt surfaces, and wait for it to dry. 6. The construction technique of the equestrian sports field according to claim 5, characterized in that: the asphalt mixture is 10mm-30mm crushed stone asphalt mixture. 7. The construction process of the equestrian sports field as claimed in claim 5, characterized in that: a 14t paver is used to spread the asphalt mixture, and an 8t light road roller is used for rolling.