JPH0728946B2 - Floor structure of indoor artificial ski resort - Google Patents

Description

TECHNICAL FIELD The present invention relates to a floor structure of a slope in an indoor artificial ski resort.

[Prior Art] In recent years, indoor artificial ski resorts have been constructed for people who enjoy winter sports.

Such an indoor artificial ski resort is constructed by depositing artificial snow using a snow machine on an indoor floor.

FIG. 5 is a schematic sectional view showing an example of a conventional floor structure of an indoor artificial ski resort. As shown in FIG. 5, the floor B of this example includes a concrete substrate 1 constructed on a foundation, a crushed stone layer 9 laid on the substrate 1 through a waterproof layer 8,
The artificial turf 11 is laid on the crushed stone layer 9 with a water-permeable asphalt 10 interposed therebetween. No. 6 is artificial snow deposited on the surface of the floor B.

FIG. 6 is a schematic sectional view showing another example of the conventional floor structure of an indoor artificial ski resort. As shown in FIG. 6, the floor C of this example includes a concrete substrate 1 constructed on a foundation,
It comprises a cooling conduit 12 in which a coolant flows, which is embedded in the substrate 1 at a predetermined interval, and an artificial turf 11 laid on the substrate 1 with a waterproof layer 8 interposed therebetween. 6 is artificial snow deposited on the surface of the floor C.

[Problems to be Solved by the Invention] The concrete substrate 1 and the crushed stone layer 9 shown in FIG.
Then, the floor B consisting of the artificial turf 11 has the following problems. That is, the floor B having the above structure does not consider heat insulation at all. Therefore, the amount of snowmelt of the artificial snow 6 deposited on it is extremely large, and in order to maintain the slope in a good state, it is necessary to supply a large amount of artificial snow, resulting in a large snowmaking cost. It is uneconomical.

The floor C shown in FIG. 6, which is composed of the substrate 1 in which the cooling conduit 12 is embedded and the artificial turf 11, has the following problems. That is, the floor having the above-mentioned structure is provided with the floor C by the cooling conduit 12 embedded in the concrete substrate 1.
Is always cooled. Therefore, the artificial snow 6 deposited on the floor C does not melt and remains forever. As a result, the snow gradually becomes dirty as the skier slides. In addition, the snow melts and freezes immediately due to the frictional heat generated when the skier slides. By repeating such melting and freezing, snow particles coarsen and gradually change into ice, and as a result, the slope changes into an ice burn.

As described above, the conventional floor structure of the slope in the indoor artificial ski resort has a problem that the amount of snow accumulated on the floor is extremely large, or the accumulated snow becomes dirty and turns into an ice burn. Is not slippery and cannot always deposit good quality powdery snow.

Therefore, the object of the present invention is to always deposit the deposited snow in a good-quality powder state without melting the deposited snow on it, or causing the snow to become dirty, or turning the snow into an ice burn. The purpose is to provide a floor structure for an indoor artificial ski resort that can be used.

[Means for Solving the Problems] The inventors of the present invention have been keen to develop a floor structure for an indoor artificial ski resort that solves the above-mentioned problems and can keep deposited snow in a powder state of good quality at all times. Repeated research. As a result, if a heat insulating layer of a specified thickness is provided in the concrete-based floor and the artificial snow deposited on the floor is melted in an amount commensurate with the supply amount to accelerate the metabolism, the deposited snow will be removed. We have found that it can be maintained in powder form at all times. The present invention was made based on the above findings,
A concrete substrate constructed on a foundation, a heat insulating layer laid on the substrate via a waterproof coating, and having a thickness capable of melting artificial snow deposited on the floor in an amount corresponding to the supply amount, and the heat insulating layer Laminated through a waterproof coating on the layer, a concrete holding plate having a plurality of drainage grooves on its upper surface, or characterized by comprising an anti-slip layer such as artificial grass, And, in the heat insulating layer or in the concrete holding plate, a conduit in which a cooling medium or a heating medium flows is embedded, thereby,
The feature is that the amount of snow melting can be adjusted.

Next, the floor structure of the present invention will be described with reference to the drawings.

FIG. 1 is a schematic sectional view showing a first embodiment of the floor structure of the present invention. As shown in FIG. 1, the floor structure of the first embodiment of the present invention comprises a concrete substrate 1 constructed on a foundation and a heat insulating material such as styrofoam or glass wool laid on the substrate 1. The heat insulating layer 2 and the concrete holding plate 3 laid on the heat insulating layer 2.

Between the substrate 1 and the heat insulating layer 2, and between the heat insulating layer 2 and the pressing plate 3.
A waterproof coating 4 made of, for example, a rubber asphalt sheet is provided between the two.

A plurality of drainage grooves 5 are formed on the upper surface of the concrete holding plate 3.

The artificial snow 6 deposited on the floor A configured as described above is
By keeping the indoor temperature of the artificial ski resort below 0 ° C, it will not melt from its surface. However, since the outside air heat enters from the bottom of the floor A, the entering outside air heat may cause melting.

Therefore, according to the weather conditions of the place where the artificial ski resort is constructed, the thickness of the heat insulating layer 2 is set to be the artificial snow 6 deposited on the floor A.
The thickness is adjusted so that an amount corresponding to the supply amount can be melted.
That is, the amount of heat supplied from the floor bottom to the artificial snow 6 on the floor A is calculated by heat conduction calculation based on the temperatures of the underfloor and the artificial snow 6, and the thermal conductivity and thickness of the structural members of the floor A. be able to. On the other hand, the amount of heat required to melt the artificial snow 6 on the floor A is calculated.

Since the temperature of the underfloor and the artificial snow 6 and the thermal conductivity of the structural member of the floor A are determined, the amount of heat supplied to the artificial snow 6 and the amount of the artificial snow 6 depending on the thickness of the structural member of the floor A. The amount of heat required for melting can be made equal. Among the structural members on the floor A, the thermal conductivity of the heat insulating layer 2 is extremely smaller than the thermal conductivity of the substrate 1, the holding plate 3, and the waterproof coating 4. Therefore, by adjusting the thickness of the heat insulating layer 2, the artificial snow 6 deposited on the floor A can be melted by an amount commensurate with the supply amount.

FIG. 2 is a schematic sectional view showing a second embodiment of the floor structure of the present invention. As shown in FIG. 2, the floor structure according to the second embodiment of the present invention comprises a concrete substrate 1 constructed on a foundation, a heat insulating layer 2 laid on the substrate 1 through a waterproof coating 4, An artificial turf 11 laid on the heat insulating layer 2 with a waterproof film 4 as a slip prevention layer capable of draining snowmelt water and preventing slippage of artificial snow 6 deposited on the surface 11
It consists of The thickness of the heat insulating layer 2 is adjusted to a thickness at which the artificial snow deposited on the floor A can be melted by an amount commensurate with the supply amount, which is the same as the structure of the first embodiment.

FIG. 3 is a schematic sectional view showing a third embodiment of the floor structure of the present invention. As shown in FIG. 3, the floor structure according to the third embodiment of the present invention comprises a concrete substrate 1 constructed on a foundation, a heat insulating layer 2 laid on the substrate 1 via a waterproof coating 4, It is similar to the floor structure of the first embodiment in that it is composed of a concrete holding plate 3 laid on the heat insulating layer 2 with a waterproof coating 4 and having a plurality of drainage grooves 5 formed on the upper surface thereof. Is.

In the floor structure of the third embodiment, the conduit 7 is provided in the heat insulation layer 2.
Are embedded and allow a cooling or heating medium to flow through the conduit 7.

In this way, through the conduit 7 embedded in the heat insulation layer 2,
By flowing the cooling medium or the heating medium, the melting amount of the artificial snow deposited on the floor A can be controlled.

FIG. 4 is a schematic sectional view showing a fourth embodiment of the floor structure of the present invention. As shown in FIG. 4, the floor structure of the fourth embodiment of the present invention comprises a concrete substrate 1 constructed on a base, a heat insulating layer 2 laid on the substrate 1 through a waterproof coating 4, A non-water-permeable concrete holding plate 3 in which a waterproof treatment material is mixed, which is laid on the heat insulating layer 2 via a waterproof film 4 and has a plurality of drainage grooves 5 formed on the upper surface thereof. It is comprised of a conduit 7 embedded in a water-permeable concrete holding plate 3 through which a cooling medium or a heating medium flows.

By flowing the cooling medium or the heating medium through the conduit 7 embedded in the holding plate 3, the melting amount of the artificial snow deposited on the floor A can be controlled.

Since the concrete that constitutes the holding plate 3 in which the conduit 7 is buried is impermeable to water, freezing of the infiltrated water causes
The holding plate 3 and the conduit 7 are not damaged.

[Operation] According to the first embodiment of the present invention, the heat insulating layer 2 is provided between the concrete substrate 1 and the concrete holding plate 3, and according to the second embodiment of the present invention, A heat insulating layer 2 is provided between a concrete substrate 1 and an artificial turf 11 serving as an anti-slip layer. The thickness of the heat insulating layer 2 is such that artificial snow 6 deposited on the floor A is used to construct an artificial ski resort. Depending on the weather conditions of the location, the thickness is adjusted so that it can melt in an amount commensurate with the supply. Therefore, the metabolism of the deposited artificial snow 6 is promoted.

According to a third embodiment of the present invention, a cooling medium or a heating medium is caused to flow through the conduit 7 embedded in the heat insulation layer 2 described above, and according to a fourth embodiment of the present invention, By flowing the cooling medium or the heating medium through the conduit 7 embedded in the impermeable concrete holding plate 3, the artificial snow 6 deposited on the floor A can be melted by an amount commensurate with the supply amount. . Therefore, similarly to the above, the metabolism of the deposited artificial snow 6 is promoted.

In the case of the first embodiment, the water melted as described above passes through a plurality of drainage grooves 5 formed on the upper surface of the pressing plate 3, and in the case of the second embodiment, the artificial grass. Through 11,
It flows toward the bottom of the slope and is discharged. A part of the melted water penetrates into the holding plate 3 or the artificial turf 11, but since the heat insulating layer 2 is covered with the waterproof coating 4, it does not penetrate into the heat insulating layer 2 and deteriorates the heat insulating layer 2. There is nothing to do.

[Effects of the Invention] As described above, according to the indoor artificial ski resort having the floor structure of the present invention, as described above, it is supplied on the floor by adjusting the thickness of the heat insulating layer of the floor structure member. Then, the accumulated artificial snow melts in proportion to the supply amount.
Therefore, a certain amount of powder-like artificial snow can be deposited on the floor at all times, and the skier can enjoy comfortable skiing without causing dirt on the snow or turning the snow into an ice barn. Brings the useful effects of.

[Brief description of drawings]

1 is a schematic sectional view showing a first embodiment of the present invention, FIG. 2 is a schematic sectional view showing a second embodiment of the present invention, and FIG.
FIG. 4 is a schematic sectional view showing a third embodiment of the present invention, FIG. 4 is a schematic sectional view showing a fourth embodiment of the present invention, and FIGS. 5 and 6 are schematic sectional views showing a conventional floor structure. It is a figure. In the drawings, 1 ... Substrate, 2 ... Insulation layer, 3 ... Holding plate, 4 ... Waterproof film, 5 ... Drainage groove, 6 ... Artificial snow, 7 ... Conduit, 8 ... Waterproof layer, 9 …… Crushed stone layer, 10 …… Water-permeable asphalt, 11 …… Artificial grass, 12 …… Cooling conduit.

Claims (4)

[Claims] 1. A concrete substrate constructed on a foundation and a heat insulating layer having a thickness capable of melting artificial snow deposited on the floor in an amount commensurate with the supply amount, which is laid on the substrate via a waterproof film. Layer, a concrete holding plate laid on the heat insulating layer via a waterproof film, and a plurality of drainage grooves formed on the upper surface of the holding plate, an indoor artificial ski resort Floor structure. 2. A concrete substrate constructed on a foundation and a heat insulating layer having a thickness capable of melting artificial snow deposited on the floor in an amount commensurate with the supply amount, which is laid on the substrate via a waterproof film. A floor structure for an indoor artificial ski resort, comprising a layer and an anti-slip layer laid on the heat insulating layer with a waterproof film interposed therebetween. 3. The floor structure according to claim 1, wherein a conduit through which a cooling medium or a heating medium flows is embedded in the heat insulating layer. 4. The floor structure according to claim 1, wherein a conduit through which a cooling medium or a heating medium flows is embedded in the holding plate.