JPH11217846A - Reclamation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To level the inside of a hole uniformly without dangerous works while man-hours for the maintenance of a pipe and cost can be reduced largely, and to curtail the cost of exchange, etc., due to the abrasion of the pipe. SOLUTION: Soil and sand 3 are carried up to a section in the vicinity of the entrance of a hole 2 by a first carrying means 5. The inside of a soil-sand pipe 18 installed near the entrance of the hole 2 is supplied with soil and sand 3 being conveyed by the first carrying means 5. The supplied soil and sand 3 are ejected from the outlet 19 of the soil-sand pipe 18 together with air at high speed towards the hole 2 by the pressure of air.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a landfill apparatus for filling a hole drilled in the ground surface or in the ground by filling the hole with earth and sand in order to prevent the hole from collapsing.

[0002]

2. Description of the Related Art Conventionally, in order to prevent a hole drilled on the ground surface or the ground from collapsing or the like, a hole is filled with earth and sand so that the hole is filled up. As a system, as shown in FIG.
There is a so-called belt conveyor system.

In this belt conveyor system, as shown in FIG. 4, earth and sand 100 are supplied into a hopper 40 provided at the entrance of the ground 1, and the earth and sand 100 are fed from the hopper 40 onto a long belt conveyor 50. And discharge this earth and sand 100,
Conveyed to the hole 2 ′ by the belt conveyor 50,
自然 fall naturally.

[0004] By the way, there are two types of soil 100, such as the soil 4 which collapses naturally when dropped into the hole 2 '(see FIG. 1 (b)), and the soil 100 which falls even when dropped into the hole 2'. There is a clay soil 3 that does not collapse (hereinafter referred to as clay 3; see FIG. 1A).

[0005] In particular, simply dropping the clay 3 naturally from the entrance of the hole 2 'results in the formation of a mountain of clay 3 only near the entrance of the hole 2', and the bottom of the hole 2 'is flat. No.

For this reason, as shown in FIG. 4, a bulldozer 60 is introduced into the hole 2 ', and the bulldozer 60
The work of equalizing the bottom surface of 'is performed.

[0007] However, it is difficult to evenly equalize the clay 3 which is a cohesive soil, and the operation requires skill.

In addition, the introduction of the bulldozer 60 into the hole 2 'to perform the work means that the work is performed in a place where there is a risk of collapse, and even if the safety is thoroughly ensured, Above, should be avoided.

Therefore, as shown in FIG.
There has been proposed a landfill system called an air pumping system which can make the bottom surface of the hole 2 'uniform without introducing 0.

[0010] In this air pressure feeding system, as shown in Fig. 5, earth and sand 10 are placed in a hopper 40 provided at the entrance of the ground 1.
0, and the earth and sand 100 is discharged from the hopper 40 into the long pipe 30.
With the pressure of the air generated as a result, the earth and sand 100 is transported together with the high-speed air to the hole 2 ′ and dropped so as to be ejected to the hole 2 ′.

In this air pressure feeding method, earth and sand 100 are
Since the earth and sand 100 is released by the pressure of the air instead of simply dropping naturally from the entrance of the hole 2 ′, even if the earth and sand 100 is clay 3, the bottom surface of the hole 2 ′ is uniform. Formed in shape A.

However, in this air pressure feeding method, since the earth and sand 100 pass through the long pipe 30, the soil adheres to the inner surface of the long pipe 30, and the pipe 30 is easily clogged. For this reason, the problem that the man-hour and cost are required for maintenance of the pipe 30 arises.

Further, when soil and the like pass through the pipe 30, the pipe 30 wears faster, and there is also a problem that the replacement is expensive.

[0014] The present invention has been made in view of such a situation, and it is possible to evenly equalize the inside of a hole without dangerous work, and to reduce the number of man-hours for pipe maintenance. It is an object of the present invention to significantly reduce costs and reduce costs such as replacement due to wear of pipes.

[0015]

Therefore, according to a first aspect of the present invention, there is provided a landfill apparatus for filling a hole drilled in the ground surface or underground with earth and sand, thereby reclaiming the soil, A first transporting means for transporting to the vicinity of the entrance of the hole, and the earth and sand transported by the first transportation means are supplied into a sediment pipe provided near the entrance of the hole, and the supplied earth and sand is An earth and sand jetting means for jetting from the outlet of the earth and sand pipe together with high-speed air toward the hole by the pressure of the air is provided.

According to the first invention, as shown in FIG. 1 (a), the earth and sand 3 are conveyed by the first conveying means 5 to the vicinity of the entrance of the hole 2.

The earth and sand 3 conveyed by the first conveying means 5 is supplied into an earth and sand pipe 18 provided near the entrance of the hole 2. The supplied earth and sand 3 is ejected from the outlet (19) of the earth and sand pipe 18 together with high-speed air toward the hole 2 by the pressure of the air.

As described above, in the first invention, the earth and sand 3 is conveyed to the vicinity of the entrance of the hole 2 by the first conveying means 5, and the section passing through the earth and sand pipe 18 to the entrance of the hole 2 is only a little. Therefore (the earth and sand pipe 18 can be shortened), the earth and sand 3 adhere to the inner surface of the earth and sand pipe 18 and clogging of the pipe 18 is extremely small. For this reason, the man-hour and cost for maintenance of the pipe 18 are greatly reduced. Further, even if the soil 3 passes through the pipe 18, the pipe 18 is extremely short, so that the cost of replacement due to wear of the pipe 18 can be reduced.

Further, since the earth and sand 3 is not simply dropped from the entrance of the hole 2 but is released by the pressure of air, the bottom surface of the hole 2 is formed in a uniform shape A. You.

Therefore, there is no need to introduce a bulldozer or the like into the hole 2 to perform an equalizing operation.

As described above, according to the first aspect of the present invention, the inside of the hole can be evenly distributed without any dangerous work, and the man-hour for pipe maintenance can be reduced.
The cost can be greatly reduced, and the cost of replacement due to wear of the pipe can be reduced.

Further, in the second invention, in the first invention,
The earth and sand ejecting means includes an air pipe through which air pumped from an air pump is connected and connected to the earth and sand pipe, and the earth and sand conveyed by the first conveying means is provided near an entrance of the hole. Into the soil pipe
The supplied earth and sand is directed toward the hole by the pressure of the air passing through the air pipe, together with high-speed air,
It is made to spout from the outlet of the earth and sand pipe.

According to the second aspect, as shown in FIG. 1A, the high-pressure air generated by the air compressor 10 passes through the air pipe 11. Therefore, the air becomes high-speed air and reaches the earth and sand pipe 18. The earth and sand 3 is supplied into the earth and sand pipe 18 by the first conveying means 5.

Then, since high-speed air is sent from behind the earth and sand pipe 18 via the air pipe 11, the earth and sand 3 supplied by the first transport means 5 flows through the earth and sand pipe 18 from behind. With the high-speed air that came,
It is ejected and discharged into the hole 2.

According to a third aspect of the present invention, in a landfill apparatus for filling a hole drilled in the ground surface or the ground by filling the hole with the earth and sand, the first transportation for transporting the earth and sand to the vicinity of an entrance of the hole. Means and the earth and sand conveyed by the first conveying means are supplied into a sediment pipe provided near the entrance of the hole, and the supplied earth and sand is directed toward the hole by the pressure of air, and the high-speed And the earth and sand ejecting means for ejecting the earth and sand from the outlet of the earth and sand pipe, and the earth and sand conveyed by the first conveying means are supplied, and the supplied earth and sand is further conveyed so as to be dropped into the hole. 2 and the sediment conveyed by the first conveying means is supplied to the sediment pipe of the sediment ejection means or to the second conveying means. So that comprise a switching means for obtaining.

According to the third invention, as shown in FIG. 1A, the switching means 16 switches the earth and sand 3 conveyed by the first conveying means 5 so as to be supplied into the earth and sand pipe 18. Then, the earth and sand 3 conveyed by the first conveying means 5 is supplied into the earth and sand pipe 18 provided near the entrance of the hole 2. The supplied earth and sand 3 is directed toward the hole 2 by the pressure of the air, and together with the high-speed air,
It is ejected from the outlet (19) of the earth and sand pipe 18.

As described above, since the earth and sand 3 are released by the pressure of the air, the bottom surface of the hole 2 is formed in a uniform shape A.
This is suitable in the case of soil such as cohesive clay which does not collapse into a naturally uniform shape A as the soil of the earth and sand.

As shown in FIG. 1A, when the earth and sand 4 transported by the first transport means 5 are switched by the switching means 16 to be supplied to the second transport means 9, Earth and sand 4 conveyed by first conveying means 5
Is supplied to the second transporting means 9, and the supplied earth and sand 4 is further transported to the hole 2, and falls naturally into the hole 2.

For this reason, the earth and sand 4 is formed near the entrance of the hole 2 as shown in the mountain B. However, there is no particular problem as long as the soil is soil-like soil that collapses into a naturally uniform shape.

As described above, according to the third invention, in addition to the effect of the first invention, the method of filling the hole 2 can be changed according to the soil properties 3 and 4 of the earth and sand. To select the most appropriate landfill method.

Further, in the fourth invention, in the third invention,
The switching means includes a supply port to which the earth and sand conveyed by the first conveyance means is supplied, a first discharge port for discharging earth and sand into a sediment pipe of the earth and sand ejection means, and the second conveyance means. The switching plate of a hopper provided with a second discharge port for discharging the earth and sand, and a switching plate for discharging the earth and sand to one of the first discharge port and the second discharge port according to a switching position. Means for switching the switching position.

In the fourth invention, as shown in FIG. 3, when the switching plate 22 of the hopper 16 is positioned on the side shown by the arrow C,
The earth and sand 3 conveyed by the first conveying means 5 and supplied into the hopper 16 is discharged into the earth and sand pipe 18.

When the switching plate 22 of the hopper 16 is positioned on the side indicated by the arrow D, the earth and sand 4 transported by the first transporting means 5 and supplied into the hopper 16 is transferred to the second transporting means 9. Is discharged.

Incidentally, the first transport means in the present invention comprises:
Any means, such as a belt conveyor and a hydraulic shovel, can be used as long as it can transport the earth and sand to the vicinity of the entrance of the hole.

[0035]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of a landfill apparatus according to the present invention.

FIG. 1A is a diagram showing a configuration of a landfill device according to the present embodiment.

In FIG. 1, a hole 2 having an open opening is shown.
In addition, a so-called open landfill device that fills the hole 2 by filling with earth and sand is assumed.

The apparatus according to the present embodiment is mainly composed of a primary belt conveyor (hereinafter, referred to as a conveyer) that conveys earth and sand 3 from a position where a mountain of clay soil (clay) 3 necessary for landfill is formed to a position near the entrance of the hole 2. 5) and the earth and sand 3 conveyed by the primary bell conveyor 5 are supplied into an earth and sand pipe 18 provided near the entrance of the hole 2, and the supplied earth and sand 3 is subjected to air pressure. Toward hole 2
A sediment ejection section 6 ejected from an ejector 19 provided at an outlet of the sediment pipe 18 together with high-speed air;
The earth and sand 3 transported by the primary bell-con 5 is transferred,
A secondary belt conveyor (hereinafter referred to as “secondary belt conveyor”) 9 that transports the transported soil until it is further dropped into the hole 2, and a soil 3 transported by the primary belt conveyor 5
And a hopper 16 having a built-in mechanism for switching between supplying the sediment into the earth and sand pipe 18 of the earth and sand ejecting part 6 and transferring to the secondary bell-con 9.

A hydraulic excavator 7 is located near the mountain of the clay 3. The bucket 7 a of the hydraulic excavator 7 is provided with a sieve for removing large lumps of the clay 3.

Further, in the vicinity of the excavator 7, the earth and sand 3
A crusher 8 which is a crushing / mixing device for breaking down and making finer or improving the soil quality is located at a place where the primary bell-con 5 is carried in.

On the other hand, a long air pipe 11 is connected to the rear of the earth and sand pipe 18 (rear to the hole 2).

In the vicinity of the rear end of the air pipe 11, for example, two air pumps 10 are arranged, and air is pumped by these air pumps 10 and introduced into the air pipe 11 through a pipe 11a. . Thus, the high-speed air passes through the air pipe 11.

In particular, a nozzle 17 (throttle) is provided at the tip of the air pipe 11. Therefore, the air pipe 1
The air that has passed through the inside 1 can be jetted into the earth and sand pipe 18 as a high-speed jet stream. Compressors 12 and 13 are provided, and the compressor 1
From 2, the air is compressed and blown into the hopper 16 through the conduit 14. Also, from the compressor 13,
Air is compressed and blown into the ejector 19 through the pipe 15.

FIG. 3 shows the internal structure of the hopper 16 and the positional relationship among the hopper 16, the primary bell-con 5, the earth and sand pipe 18, and the secondary bell-con 9.

FIG. 3A is a front view, and FIG.
FIG. 3A is an A-A view, and FIG. 3C is a top view.

As shown in these figures, the earth and sand 3 conveyed by the primary bell-con 5 is charged into the charging port 16a of the hopper 16.

The hopper 16 has a structure in which the earth and sand discharge port can be switched and selected, and the switching is performed by driving the switching plate 22. Switching plate 22
Is driven by a cylinder 21 (for example, an air cylinder is used).

When the driving of the rod of the cylinder 21 is controlled to be retracted, the switching plate 22 is positioned at the position C.

At this time, the earth and sand 3
Is discharged into the sediment pipe 18.

When the driving of the rod of the cylinder 21 is controlled to be extended, the switching plate 22 is driven from the position C as shown by the arrow B, and is positioned at the position D.

At this time, the earth and sand 3
Is transferred onto the secondary bell-con 9.

Even when the switching plate 22 is located at the position C, the sediment is clogged in the sediment pipe 18,
If an overflow has occurred, the earth and sand will be transferred onto the secondary bell-con 9.

The pipe 23 is a pipe for transporting water, and is connected to the inside of the earth and sand pipe 18. The conduit 23 is used to introduce clogging water into the sediment pipe 18 through the conduit 23 to improve the clogging of the sediment when the inside of the sediment pipe 18 is clogged with sediment. It is also used to suppress the diffusion of dust of the earth and sand ejected from the earth and sand pipe 18.

The conduit 14 is provided with the above-mentioned switching plate 22 and the like.
It is connected to each part in the hopper 16. Then, high-speed air is ejected from each ejection port 14a. Thereby, the earth and sand 3 can be pushed into the earth and sand pipe 18 at high speed.

High-speed air passing through the pipe 15 is also ejected from the ejection port 15a of the ejector 19. Thus, the earth and sand 3 that has passed through the earth and sand pipe 18 can be ejected from the ejector 19 at a higher speed.

Next, a process for filling the hole 2 using such an apparatus will be described.

First, a mountain of clay 3 is excavated by a hydraulic excavator 7. The excavated earth and sand 3 is transported to the crusher 8 by the hydraulic excavator 7.

In the hydraulic excavator 7, large stones and the like existing in the scooped clay 3 are removed by a sieve provided in the bucket 7a. This prevents a situation in which the large sand or the like prevents the earth and sand 3 from entering the earth and sand pipe 18 beforehand. Further, the clogging of the earth and sand with the earth and sand pipe 18 is prevented from occurring.

In the crusher 8, processing such as breaking the soil 3 to make it finer or improve the soil quality is performed. Thereby, the lump becomes small and the situation where the earth and sand 3 does not enter the earth and sand pipe 18 is prevented beforehand. In addition, earth and sand pipe 1
8 prevents the occurrence of clogging of earth and sand.
In addition, by adding an improving material such as lime, soil 3
Is prevented from adhering to the earth and sand pipe 18, and as a result, the occurrence of clogging of earth and sand is prevented.

The earth and sand 3 processed by the crusher 8 is carried into the primary bell-con 5.

The earth and sand 3 are conveyed to the vicinity of the entrance of the hole 2 by the primary bell-con 5, and are introduced into the introduction port 16a of the hopper 16.

As described above, according to the present embodiment, the clay soil 3 is not conveyed to the hole 2 by using a pipe which is liable to be clogged with the clay soil 3 as in the related art. Is transported using the belt conveyor 5 which does not cause any trouble even if the paper is transported, so that the durability can be dramatically improved and the cost associated with replacement can be reduced.

Now, the switching plate 22 of the hopper 16 is in the position C
The earth and sand 3 that has been input is discharged into the earth and sand pipe 18.

Here, the high-pressure air generated by the air compressor 10 passes through the air pipe 11 and becomes a high-speed jet flow from the nozzle 17 to form a sediment pipe 18.
It has been spouted inside. Further, high-speed air is spouted from each jet port 14a provided in each part of the hopper 16, thereby pushing the sediment 3 into the sediment pipe 18 at a high speed. The power transferred by the air according to 10 is not reduced.

Therefore, the earth and sand 3 discharged by the hopper 16 passes through the earth and sand pipe 18 at high speed together with high-speed air coming from behind, and is ejected through an ejector 19 provided at the tip of the earth and sand pipe 18. Released into the hole 2. Here, also from the ejection port 15a of the ejector 19,
Since high-speed air that has passed through the pipeline 15 is being blown out,
The earth and sand 3 that has passed through the earth and sand pipe 18 can be ejected from the ejector 19 at a higher speed.

As described above, in the present embodiment, the earth and sand 3 is not simply dropped from the entrance of the hole 2 but is discharged by the pressure of the air. Even if it is an adhesive soil material that is not easily disintegrated, the bottom surface of the hole 2 will eventually be formed into a uniform shape A.

In the embodiment, the ejector 19 is provided at the tip of the earth and sand pipe 18. However, when a long flight distance is not required, it is possible to omit the provision of the ejector 19.

The discharge direction of the earth and sand 3 may be arbitrarily changed by making the discharge outlet of the earth and sand pipe 18 movable.

When a secondary bell-con is used When the hole 2 is buried with the clay 3 of the cohesive soil, the hopper 1 is usually so discharged as to discharge the earth and sand through the above-mentioned earth and sand pipe 18.
The switching plate 22 of No. 6 may be switched to the position C side.

However, for some reason, the sediment pipe 18
Is clogged, the switching plate 22 of the hopper 16 is moved to the position D.
Side, the earth and sand 3 put into the hopper 16 may be transferred to the secondary bell-con 9.

The earth and sand 3 transferred to the secondary bell-con 9 is transported to the entrance of the hole 2 and falls naturally into the hole 2 as it is. In this case, the secondary bell-con 9 can be used as an emergency conveying means when the earth and sand pipe 18 is clogged.

When the earth and sand 3 is discharged using the earth and sand pipe 18, the shape of the bottom of the hole 2 may be distorted. That is, the earth and sand 3 may not be deposited on the bottom near the entrance of the hole 2, and the earth and sand 3 may be deposited only at a position far from the entrance.

In this case, the earth and sand 3
The switching plate 22 of the hopper 16 is moved to the position D so that
Side, the earth and sand 3 put into the hopper 16 is transferred to the secondary bell-con 9, and the earth and sand 3 is moved by the secondary bell-con 9.
May be allowed to fall naturally into the hole 2 as it is. Even when the switching plate 22 is located at the position C, if the sediment is clogged in the sediment pipe 18 and overflow occurs, the sediment is removed from the secondary bell conveyor 9.
Transported up. Then, the earth and sand 3 is dropped into the hole 2 using the secondary bell-con 9.

In this case, even if the earth and sand pipe 18 is clogged, the reclamation work can be continued. That is, even if the clogging of the sediment pipe 18 occurs,
Since the transport at the secondary bell-con 9 can be continued,
Work efficiency can be improved. Moreover, maintenance for recovering the function of the earth and sand pipe 18 such as cleaning of the earth and sand pipe 18 can be performed while the landfill work is continued using the secondary bell-con 9.

During the operation, water is introduced into the sediment pipe 18 through the conduit 23, so that the sediment pipe 1
The possibility of the clogging of the earth and sand inside 8 is extremely low.

When the pile of earth and sand changes from the clay 3 to the remaining soil 4, the position of the switching plate 22 of the hopper 16 is switched to the position D side.

Then, the earth and sand 4 conveyed by the primary bell-con 5 are transferred to the secondary bell-con 9, and the conveyed earth and sand 4 are further conveyed to the hole 2 and fall naturally into the hole 2.

Therefore, the earth and sand 4 is formed near the entrance of the hole 2 as shown in the mountain B as shown in FIG. However, there is no particular problem as the soil of the earth and sand is a soil that collapses into a naturally uniform shape.

In this embodiment, the switching mechanism of the hopper 16 switches between supplying the earth and sand into the earth and sand pipe 18 and transferring the earth and sand to the secondary bell-con 9. However, the switching is performed manually. You may do so.

That is, when the work of filling the clay 2 into the hole 2 is performed, the earth and sand ejection portion 6 shown in FIG. 1A is installed, and when the work of filling the remaining soil 4 into the hole is performed, the operation shown in FIG.
As shown in (b), the secondary bell-con 9 may be installed so that the earth and sand 4 carried out from the primary bell-con 5 are carried into the secondary bell-con 9.

In this embodiment, an open hole 2 is assumed. However, as shown in FIG. 2, the present invention can also be applied to a work for reclaiming an underground hole 2 ′ formed in the ground 1. it can.

FIG. 2 shows the configuration of a so-called underground hole reclamation apparatus, which has the same configuration as that of the apparatus shown in FIG. In this case, the entrance of the primary bell-con 5 is provided at the entrance of the tunnel 1a communicating with the hole 2 '.

As described above, according to the present embodiment, the holes 2,
Since the method for reclaiming 2 'can be changed, an optimum landfill method can be selected according to the soil properties and conditions.

Further, even if a working machine (operator) is not introduced into the holes 2 and 2 ', the cohesive soil 3 can be evenly distributed, so that the safety can be remarkably improved. . In addition, the earth and sand pipe 18 can be arranged near the entrance of the holes 2 and 2 ', so that the earth and sand is
′ Can be shortened, so that the length of the soil 18 in contact with the pipe 18 can be shortened, and the clogging of the pipe 18 by the earth and sand and the wear of the pipe 18 due to the passage of the earth and sand can be reduced. It can be dramatically reduced.

Even if clogging occurs in the earth and sand pipe 18, the work can be continued using the other secondary bell-con 9 of the landfill type, so that the work efficiency can be greatly improved.

In the present embodiment, the earth and sand are transported using the primary belt conveyor 5 to the vicinity of the entrances of the holes 2 and 2 '. However, any means may be used for transporting the earth and sand. Can be. In particular, in a situation where the excavator 7 can be introduced to the vicinity of the entrance of the hole 2 (the earth and sand falling port) as in the open hole 2 shown in FIG. 1, the earth and sand is directly conveyed to the hopper 16 by the excavator 7. Is also good.

[Brief description of the drawings]

FIGS. 1A and 1B are views showing a configuration of a landfill device for filling an open hole. FIG.

FIGS. 2A and 2B are views showing a configuration of a landfill device for burying an underground hole.

3 (a), 3 (b) and 3 (c) show the internal structure of the hopper,
It is a figure which shows the positional relationship of a sediment pipe and a secondary bell-con, FIG.3 (a) is a front view, FIG.3 (b) is an arrow AA view of FIG.3 (a), FIG. (c) is a top view.

FIG. 4 is a diagram illustrating a conventional belt conveyor type landfill device.

FIG. 5 is a view exemplifying a conventional landfilling device of the air pressure feeding system.

[Explanation of symbols]

 2 Open hole 2 'Underground hole 3 Clay soil, etc. (clay) 4 Remaining soil 5 Primary belcon 6 Sediment discharge section 9 Secondary belcon 11 Air pipe 18 Sediment pipe

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Masayoshi Toshima 1-16-14 Shibuya, Shibuya-ku, Tokyo Tokyu Geox Corporation (72) Inventor Hideaki Kihara 1-16-14 Shibuya, Shibuya-ku, Tokyo Tokyu Geox (72) Inventor Koji Chikishi 3-20-1 Nakase, Kawasaki-ku, Kawasaki-shi, Kanagawa Prefecture Inside of Construction Machinery Research Laboratory, Komatsu Ltd. (72) Inventor Yoshimasa Tanaka 2-3-6, Akasaka, Minato-ku, Tokyo Inside the Komatsu Works (72) Koji Orimoto 2-3-6 Akasaka, Minato-ku, Tokyo Inside the Komatsu Works Co., Ltd. (72) Tohru Sato 3-18-3 Daikan, Yamato-shi, Kanagawa

Claims (4)

[Claims] 1. A landfilling device for filling a hole drilled in the ground surface or underground with earth and sand, thereby reclaiming the hole, wherein the first transportation means transports the earth and sand to a vicinity of an entrance of the hole. And supplying the earth and sand conveyed by the first conveying means into an earth and sand pipe provided near the entrance of the hole, and feeding the supplied earth and sand toward the hole by the pressure of air, along with high-speed air. A landfill device, comprising: means for ejecting earth and sand from an outlet of the earth and sand pipe. 2. The method according to claim 2, wherein the earth and sand ejection means includes an air pipe through which the air fed from the air pump is passed and connected to the earth and sand pipe, and transfers the earth and sand conveyed by the first conveyance means to the hole. It is supplied into a sediment pipe provided near the entrance, and the supplied sediment is ejected from the outlet of the sediment pipe together with high-speed air toward the hole by the pressure of the air passing through the air pipe. 2. The method according to claim 1, wherein
A landfill device as described. 3. A landfill device for filling a hole drilled in the ground surface or the ground with earth and sand, thereby reclaiming the hole, wherein: a first transfer means for transferring the earth and sand to a position near an entrance of the hole; And supplying the earth and sand conveyed by the first conveying means into an earth and sand pipe provided near the entrance of the hole, and feeding the supplied earth and sand toward the hole by the pressure of air, along with high-speed air. Earth and sand ejecting means for ejecting the earth and sand from an outlet of the earth and sand pipe; and second conveying means for supplying the earth and sand conveyed by the first conveying means, and conveying the supplied earth and sand so as to further fall into the hole. Switching means for switching whether the earth and sand conveyed by the first conveying means is supplied to the earth and sand pipe of the earth and sand ejection means or to the second conveying means; Landfill apparatus characterized by comprising a. 4. The switching means comprises: a supply port to which the earth and sand conveyed by the first conveyance means is supplied; a first discharge port for discharging earth and sand into a sediment pipe of the earth and sand ejection means; A second discharge port for discharging the earth and sand to the second conveying means, and the first discharge port according to a switching position.
4. The landfill apparatus according to claim 3, wherein the hopper is provided with a switching plate for discharging earth and sand to one of the discharge port and the switching position of the switching plate.