JPH055302A - Artificial ski slope, its construction, and iced plate therefor - Google Patents

Abstract

PURPOSE:To obtain a comfortable ski slope which is free of maintenance and repairing and can also be easily constructed and removed, by a method in which a waterproof sheet is placed on the base, a heat-exchange plate consisting of a refrigerating tube and water-containing sand is provided on the waterproof sheet, and an iced plate layer is formed on the heat-exchange plate to form snow layer. CONSTITUTION:A waterproof sheet 20 is placed on a heat insulator 21 provided on the base 22, and a heat-exchange plate consisting of a refrigerating tube 19 and water-containing sand 18 is placed on the sheet 20. A panel-shaped iced plate 17 composed of water or water-containing polymer is also provided on the heat-exchange plate. The hardness of the upper part is adjusted by injecting a gas to form a ski slope suitable for the edging action of ski. A reinforcing net 23 is set in the plate 17 to make undulated surface of ski slope changeable, and snow layer 16 is provided on it. The quality of the ski slope can thus be raised and the ski slope can also be effectively maintained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ski slope for an artificial ski resort, a construction method thereof, and a freezing plate used for the construction.

[0002]

2. Description of the Related Art A conventional artificial ski resort uses an artificial snow machine to form a ski slope, but when the outside temperature is relatively high, it is necessary to fully operate the snow machine, which increases costs. However, maintenance is also difficult.

For this reason, artificial skis which have recently been made to absorb water or water-absorbing polymers and flowed onto a slope provided with a refrigerant pipe, and frozen to scrape the surface of the slope to form a snow-like ski slope. There is a proposal for a place (artificial ski slope).

[0004]

However, the following problems are encountered in the artificial ski slope (artificial ski slope) construction method using water or a water-absorbing polymer thus constructed.

A. It is necessary to freeze water or a water-absorbent polymer uniformly on the slope of the slope, and this construction and removal requires a great deal of time and money. b. At the time of freezing, it is necessary to cover the slope with a heat insulating sheet, which is troublesome. c. It is difficult to replenish the snow layer, and a solid ice burn is immediately exposed, making it difficult to slip comfortably. d. Maintenance and repair are time-consuming and costly. e. Difficult to repair locally. f. Construction costs are high. g. It is difficult to change the shape of the undulations on the slope of the ski slope, and the construction cost is high.

An object of the present invention is to provide a method for constructing an artificial ski resort (artificial ski slope) which does not have the drawbacks described in a to g above.

[0007]

Means for Solving the Problems The slope of an artificial ski resort of the present invention which achieves the above object, its construction method, and a freezing plate used for the construction are as follows.

The ski slope of the present invention comprises a waterproof sheet on a foundation, a flexible refrigerant pipe and a heat exchange plate formed by using sand or crushed ice containing water, and water or water on the heat exchange plate. It is characterized by comprising a layer composed of a frozen plate produced by previously freezing a water-absorbent polymer absorbed in a panel shape, and a snow layer thereon.

In the present invention, the term "foundation" refers to the one in which a heat insulating material is laid on the ground or a steel or concrete foundation plate constructed to be suitable for a ski slope.

Further, the above-mentioned slope is constructed by constructing a ski slope foundation, laying a waterproof sheet on the foundation, and forming a heat exchanger plate by using a refrigerant pipe and sand containing water or crushed ice. Laying and laying the freezing plates manufactured by freezing water or water-absorbent polymer absorbed on the heat exchange plate in a panel shape in advance, and laying them side by side, on the basic slope formed by the heat exchange plate and the freezing plate. It can be constructed by forming a snow layer on the ground.

In construction, it is preferable to inject a sealing material made of the same material as the frozen plate material into the joint of the frozen plate.

In the method of the present invention, the snow layer is formed on the basic slope formed by the heat exchange plate and the freezing plate, which is prepared by absorbing water into water or a water-absorbing polymer which is manufactured separately. There is a method of laying artificial snow on the surface of the foundation slope and pressing it to form a snow layer, or shaving the surface of the freezing plate to form a snow layer on the surface of the foundation slope.

Next, the freezing plate of the present invention is provided with a reinforcing net on the bottom surface or the bottom portion, and the hardness of the surface portion is adjusted,
It is formed by freezing water or a water-absorbent polymer containing water.

This freezing plate is made by absorbing water or a water-absorbing polymer as a raw material, and putting it in a frame having a reinforcing net laid in advance to contain a gas such as carbon dioxide gas, etc. to soften the surface. It is formed by freezing, but in order to further increase the adhesion surface between the foundation slope and the snow layer at the time of slope construction, it is preferable to manufacture and form a frozen plate with unevenness on the surface, and carry it to the site to bring it to the ski slope. Can be configured. It is desirable to use a colored reinforcing net.

The thickness and size of the frozen plate obtained by freezing water or water-absorbent polymer absorbed is not particularly limited, but the size is a square or rectangle having a side of 300 mm to 1800 mm and a thickness of 20 mm to 180 mm. The place is good.

In addition to the rectangular shape shown in FIG. 4, the shape of the freezing plate is preferably an interlocking shape in which adjacent freezing plates are engaged with each other in some way, for example, the shape shown in FIG. 6, and FIG. The shape which combined the freeze plates shown in FIG.

However, this size is not limited in the present invention, and is not particularly limited as long as the shape is easy to construct. As shown in FIG. 5, the surface of the icing panel has irregularities, which has the effect of preventing the snow layer from shifting from the basic slope.

The hardness of the upper portion of the freezing plate is adjusted by injecting gas or the like, so that a ski slope can be formed which is adaptable to the edge of the ski. Further, when the surface of the freezing plate is shaved to form a snow layer, there is an effect of easiness of shaving.

By inserting the reinforcing net in the freezing plate, it becomes easy to construct the foundation slope in accordance with the change in the undulating shape. Further, when the colored reinforcing net is used, it is easy to carry out the local repair for each ice plate.
The thickness of the snow layer formed on the surface of the foundation slope is arbitrary, but the optimum thickness is about 15 mm to 30 mm.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows an overall configuration diagram of an artificial ski resort according to the present invention. Reference numeral 1 is a refrigerant cooler, 2 is a cooling tower, an auxiliary device for operating the refrigerant cooler 1, 3 is a cooling water circulation pump, and the refrigerant returned to the refrigerant tank 5 is sufficiently cooled by the cooler 1 In addition, the refrigerant is sent to the ski slope 8, the freezing plate making machine 9, and the artificial snow making machine 10 by the forward line 6. The refrigerant whose cold heat has been consumed in the slope 8, the ice plate making machine 9, and the artificial snow making machine 10 is returned to the refrigerant tank 5 through the heat exchanger (refrigerant-to-air) 12 in the refrigerant return pipe 7.
In the heat exchanger 12, the residual cooling heat of the refrigerant is applied to the air, and cold air or low-temperature air is blown from the air outlet 15 through the duct 14 along the slope of the surface of the ski slope 8. The artificial snow carrier supplies the ice plate and artificial snow to the ski slope in a timely manner.

FIG. 2 is a stacking diagram showing the structure of the ski slope, and FIG. 3 is a sectional view thereof. In the illustrated example, a waterproof sheet 25 is laid on a heat insulating material 21 on a base plate surface 22 made of steel or concrete in an artificial ski slope such as indoors. A heat exchange plate (27) formed from sand or crushed ice (18) containing water and a flexible refrigerant pipe (19) is laid on the slope foundation (28). The freezing plate 17 is installed on this heat exchange plate, and the basic slope 26 which is the point of the present invention is completed. This foundation slope can be constructed by freely changing the undulation shape and is easy to maintain and repair. Reference numeral 16 is a snow layer that has been compressed, and 29 is a stopper of the foundation slope 26.

FIG. 4 is a perspective view of a rectangular freezing plate used to cover the heat exchange plate, and FIG. 5 shows the freezing plate.
A part of 17 is enlarged and shown. The surface 24 of the freezing plate has an uneven shape that expands the crimping surface with the snow layer and hardness adjustment that makes it easy to keep the stay edge.The reinforced net in the low layer of the freezing plate is convenient for storage and transportation, and construction and repair of the basic slope. Makes it easy.

In this embodiment, the snow layer is made by the artificial snow making machine 10. However, it is of course possible that the snow layer is made at another place or artificial snow made by shaving an ice plate. That is.

[0024]

As described above, the present invention lays a waterproof sheet on a foundation, lays a heat exchange plate formed of sand or crushed ice containing water and a refrigerant pipe, and lays it on the heat exchange plate. Put water or water-absorbing polymer in a mold with a reinforced net laid in advance, gas is added to it, and a frozen ice plate is manufactured and laid, and an artificial snow layer is placed on it. Formed. As a result, the following effects can be expected.

A. A high-quality ski slope can be completed in about 1/4 time as compared with a conventional artificial ski slope using a water-absorbing polymer. b. There is no need to cover with a heat insulating sheet or to significantly reduce the temperature when constructing the slopes. c. Since the flexible foundation slope is used, the slope can be freely changed in undulation shape, which improves the quality of the slope. d. Since the ice plates can be mass-produced at the factory, it is possible to make the basic slope of the slope by lining up the ice plates on site. e. By softly freezing the surface of the freezing plate, even if the snow layer is scraped and the freezing plate is exposed, it is possible to ski comfortably. f. By making the surface of the frost plate uneven, it is possible to prevent the gap between the snow layer and the foundation slope. g. By using a freezing plate containing a reinforcing net, it is easy to carry out construction and local repair according to free undulation shape changes. h. By blowing cold or low-temperature air along the slope, the slope can be efficiently maintained without being affected by the atmospheric temperature.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of a ski slope according to an embodiment.

FIG. 2 is a stacking diagram showing a configuration of a ski slope of an example.

FIG. 3 is a sectional view of the ski slope of the embodiment.

FIG. 4 is a perspective view of a rectangular freezing plate.

FIG. 5 is a partially enlarged view of the freezing plate.

FIG. 6 is a perspective view of an interlocking type freezing plate.

7 is an explanatory diagram showing a state in which the freezing plates shown in FIG. 6 are combined.

[Explanation of symbols]

 1 Refrigerant cooler 2 Cooling tower 3 Cooling water circulation pump 4 Refrigerant circulation pump 5 Refrigerant tank 6 Refrigerant forward pipe 7 Refrigerant return pipe 8 Ski slope 9 Ice plate making machine 10 Artificial snow making machine 11 Artificial snow carrier 12 Heat exchanger (air) 13 Cold air circulation fan 14 Duct 15 Outlet 16 Snow layer 17 Freezing plate 18 Sand 19 Refrigerant pipe 20 Waterproof sheet 21 Insulation material 22 Foundation board surface 23 Reinforcing net 24 Surface processing 25 Ski slope section 26 Foundation slope 27 Heat exchange plate 28 Slope foundation 29 stopper

Claims (1)

Claim: What is claimed is: 1. A waterproof sheet on a foundation, a heat exchange plate formed by using a flexible refrigerant pipe and sand or crushed ice containing water, and water or water absorption thereon. An artificial ski slope characterized by comprising a layer composed of a frozen plate produced by previously freezing a water-absorbent polymer into a panel shape, and a snow layer formed on the layer. 2. A ski slope foundation is constructed, a waterproof sheet is laid on the foundation, and a heat exchange plate formed by using a refrigerant pipe and water-containing sand or crushed ice is laid on the waterproof sheet. , A water-absorbent polymer absorbed on a heat exchange plate is frozen in a panel shape in advance, and an ice plate manufactured by freezing it is laid side by side, and a snow layer is formed on the foundation slope formed by the heat exchange plate and the ice plate. A method for constructing a ski slope on an artificial ski resort characterized by forming a ski. 3. The slope construction of an artificial ski resort according to claim 2, wherein the snow layer on the foundation slope is formed by artificial snow manufactured separately or by shaving the surface of the freezing plate. Law. 4. A reinforcing net is provided on a bottom surface or a bottom portion,
An icing plate formed by freezing water or a water-absorbing polymer containing water, the surface hardness of which is adjusted. 5. The freezing plate according to claim 4, wherein the shape is an interlocking shape.