JP3244152B2 - On-board generated soil improvement device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an in-vehicle type generated soil improvement device used for reusing the generated soil as a replacement material suitable for backfilling when laying a buried object on a road, and in particular, relates to a work. The present invention relates to an in-vehicle generated soil improvement device for improving efficiency and producing improved quality soil.

[0002]

2. Description of the Related Art FIGS. 5 to 7 show a conventional vehicle-mounted generated soil improving apparatus of this type. In the figure, reference numeral 1 denotes a vehicle-mounted generated soil improvement device. The vehicle-mounted generated soil improvement device 1 has a vehicle body composed of a vehicle body 2 on which various devices are mounted and a driver's seat 3, and a sediment hopper 4 for charging excavated earth and sand is installed at the rear of the vehicle body 2. At the lower end of the earth and sand hopper 4, an earth and sand quantitative feeder 5 is attached. A slaked lime hopper 6 for introducing slaked lime, which is an improving agent for improving the soil quality, is installed in front of the earth and sand hopper 4, and a slaked lime quantitative supply device 7 is attached to a lower end of the slaked lime hopper 6. A mixer 8 arranged in the front-rear direction of the vehicle body 2 is attached to the lower side of the soil and sand constant feeder 5 and the slaked lime constant supply device 7.

The mixer 8 is a so-called pug mill having two parallel rotating shafts provided with paddles or spiral blades.
Is transported to the front of the vehicle body 2 while mixing a certain amount of earth and sand and slaked lime supplied from the vehicle. A bucket conveyor 9 is vertically connected to the end portion of the mixer 8, and the slaked lime and the earth and sand mixed by the mixer 8 are transferred to the upper side of the vehicle body by the bucket conveyor 9. A belt conveyor 11 arranged in the front-rear direction of the vehicle body is provided at an outlet 10 provided at the upper end of the bucket conveyor 9, and the tip of the belt conveyor 11 passes through the upper part of the driver's seat 3 and forwards. It is configured to be telescopic. And this vehicle-mounted generated soil improvement device 1
As shown in FIG. 7, an excavator 12 for excavating the ground
And a truck 13 or the like for carrying an improved replacement material and transporting it to a backfill location.

Next, a description will be given of a working situation using the above-mentioned conventional on-board type soil improvement device. First, as shown in FIG. 7, the vehicle-mounted generated soil improvement device 1 is arranged at a predetermined interval from an excavator 12 installed at an excavation point such as a road,
In addition, a truck 13 is provided at a predetermined interval in front of the on-vehicle type soil improvement device 1. And excavator 1
The excavator 14 provided at the tip of the excavator 2 excavates the ground, and the excavated earth and sand is directly excavated by the excavator 14 of the excavator.
And is thrown into the earth and sand hopper 4 of the vehicle-mounted generated soil improvement device 1. As shown in FIGS. 5 and 6, a fixed amount of the introduced earth and sand is sent to the mixer 8 by the earth and sand quantitative supply device 5, and in the mixer 8, the slaked lime hopper 6
Is fed to the bucket conveyor 9 while being mixed with slaked lime supplied through the slaked lime quantitative feeder 7 through the fixed amount.

After the earth and sand sent to the bucket conveyor 9 are transported upward, they are discharged from a discharge port 10 onto a belt conveyor 11, and the belt conveyor 11 causes the driver's seat 3 to move.
It is carried forward through the upper part of. Then, the improved soil transferred by the belt conveyor 11 falls from the tip of the belt conveyor 11, is loaded on a bed of a truck 13 disposed therebelow, transported to the excavation point by the truck 13 and backfilled. It is.

[0006]

However, in the above-mentioned conventional on-board generated soil improvement apparatus 1, the capacity of the earth and sand hopper 4 installed in the vehicle body 2 excavates and throws earth and sand into the interior. Since the excavator 14 of the excavator 12 has a smaller excavation capacity than a single excavation, all of the excavated soil by the excavator 12 cannot be put into the sediment hopper 4 at one time, and the sediment in the sediment hopper 4 is lowered. It is necessary to wait for the space to be discharged and a space is formed in the sand hopper. In addition, the sand hopper 4 contains various sizes of sand and solidified soil, which are directly stored in the mixer 8. It will be supplied, but it cannot be finely crushed inside the mixer 8 and is insufficiently mixed with the additive, or the consolidated soil often becomes clogged in the mixer 8, Failure of the equipment, and Because it is not possible to produce improved soil with a fine grain size, for example, if the improved soil is backfilled in this hole after installing a buried object such as a pipe in an excavated ditch, the improved soil will fill the gap around the pipe. In a place where it is not possible to wrap around sufficiently and is buried in these small gaps, there is a problem that the soil around the pipe having a small particle size must be separately carried in by a dump truck or the like.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an on-vehicle-type generated soil improvement apparatus capable of efficiently producing high quality improved soil on site.

[0008]

According to the present invention, there is provided an in-vehicle vehicle for reusing earth and sand generated by excavating the ground with an excavator (41) as a replacement material suitable for backfilling. a type generator soil modifying apparatus (20), wherein a hopper having a capacity greater than the amount of sediment to scoop at a time (24) at the drilling machine (41), soil generated from the hopper (24)
A crushing and mixing device (26) for finely crushing the earth and sand supplied through the quantitative supply device (27) and mixing with an additive to improve the soil quality, and an improved crushing and mixing device (26). Particle size adjustment device that sieved soil and sand to a certain particle size
(30) , except for the opening of the hopper (24).
Soundproofing covers provided on the vehicle body (21) to cover each device
The generated soil quantitative supply device, comprising a bar (23);
(27) In the soil in (27), the additive material fixed supply device (29)
A predetermined amount of additive material can be supplied from the
The particle size adjusting device (30) is provided with a vibrating sieve.
The improved soil is gradually divided into a predetermined size by a sieve.
The improved soil with a particle size smaller than the specified
It is designed to be discharged to the front of the soil improvement device (20).
In addition, improved soil with a grain size larger than the specified
The body body (2) is driven by the bar-size discharge conveyor (34).
1) To be discharged from the rear of the vehicle body (21)
Characterized in that the structure was

[0009]

In the vehicle-mounted generated soil improving apparatus (20) according to the present invention, all of the scoop excavated by the excavator (41) is put into the hopper (24) in one process. The earth and sand introduced into the hopper (24) is supplied to the generated soil quantitative supply device.
(27) to the crushing and mixing device (26),
Is finely crushed by the crushing and mixing device (26) , so that it is sufficiently mixed with the additive material to produce a high-quality improved soil, and clogging does not occur in the device. Furthermore, the improved soil produced by the crushing and mixing device (26) is separated into fine soil having an improved particle size by the grain size adjusting device (30) . Even when used as backfill material, improved soil penetrates into small gaps around the pipe,
No gap is formed around the buried pipe. Ma
In addition, the soil in the generated soil quantitative supply device (27) is
A predetermined amount of additive can be supplied from the additive feeder (29).
As a result, a certain amount of additive can be reliably added to the injected soil.
Can supply and produce high quality improved soil.
Wear. Further, a vibrating sieve is provided in the particle size adjusting device (30).
This vibrating sieve allows the improved soil to reach a predetermined size.
Gradual improvement, finer than the specified particle size
The soil is discharged in front of the on-board type soil improvement device (20).
And larger than a specified particle size
Improved soil is delivered to the oversize discharge conveyor (34).
Therefore, from the rear portion of the vehicle body (21) to the outside of the vehicle body (21)
To improve operating efficiency.
While it is possible to improve the
Reuse of good soil can also be facilitated. In addition,
Except for the opening of the hopper (24)
Since the soundproof cover (23) is provided,
The sound can be reduced and the generated dust spreads
Can be prevented.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. FIGS. 1 and 2 show a vehicle-mounted generated soil improvement device according to an embodiment of the present invention. FIG. 3 is an explanatory diagram showing a situation where the vehicle-mounted generated soil improvement device is actually used at a road excavation site. is there. In the drawing, reference numeral 20 denotes a vehicle-mounted generated soil improvement device of this embodiment. The vehicle body portion includes a vehicle body 21 and a driver's seat 22. Body 2
The upper part of 1 is covered with a soundproof cover 23, and various devices for improving the earth and sand generated by excavating the ground G are housed inside the soundproof cover 23. An inclined surface is formed in the rear part of the ceiling of the soundproof cover 23, and a sediment hopper 24 for introducing excavated earth and sand is installed inside the inclined surface. The earth and sand hopper 24 has a capacity larger than the amount of earth and sand excavated at a time by a shovel of an excavator to be described later.
A fixed grizzly 25 of 0 mm is attached to the inclined surface.

At the lower end of the earth and sand hopper 24, a generated earth supply device 27 for transferring earth and sand from the earth and sand hopper to a crushing and mixing device 26 is provided, and an additive hopper 28 is provided beside the crushing and mixing device 26. is set up. Generated soil supply device 2
Numeral 7 is inclined upward toward the front end portion (front of the vehicle body), and is disposed such that the front end portion is located above the crushing and mixing device 26. Further, the additive hopper 28 temporarily stores an additive (eg, slaked lime, etc.) mixed with earth and sand to improve it into a replacement material suitable for backfilling. Hopper 28
In the lower part, an additive additive supply device 29 for supplying the additive near the tip of the generated soil supply device 27 is provided.

The lower part of the crushing and mixing device 26 is
A transport conveyor 31 for transporting the improved soil is provided to a particle size adjusting device 30 disposed in front of the apparatus. The transport conveyor 31 is inclined upward as it goes to the front of the vehicle body 21, and is mounted such that its front end is located above the particle size adjusting device 30. A vibrating sieve is used as the particle size adjusting device 30, and a conveyor 32 extending in the width direction of the vehicle body 21 is attached to a lower portion of the particle size adjusting device 30. It is located at one end. The improved soil discharge conveyor 33 is for discharging the improved soil as a backfill material manufactured by this device to the outside of the on-board generated soil improvement device 20, and one end is located near the floor of the vehicle body 21. Is housed inside the soundproof cover 23 and the other end is
It extends to the upper front of the driver's seat via the side of No. 2.

A discharge conveyor 34 extends along the inside of the soundproof cover 23 on the side of the vehicle body 21, and one end of the discharge conveyor 34 is located near the lower end of the particle size adjusting device 30. The other end is located at the rear end of the vehicle body 21. A control panel 35 for controlling the above-described devices is provided on a side portion of the vehicle body 21.
At the rear, a power source 36 for driving these devices is mounted.

Next, the operation of the vehicle-mounted generated soil improvement device 20 of this embodiment will be described.

The earth and sand excavated by an excavator described below
It is thrown into the generated soil hopper 24 via the fixed grizzly 25. Since the fixed grizzly 25 is formed in a mesh of 100 mm, solidified soil and stones having a size larger than this mesh cannot pass through the fixed grizzly 25, and the vehicle body extends along the inclined surface of the fixed grizzly 25. It falls to the rear part of the main body 21. The dropped large lump is stored in a large luggage bag (not shown) and then processed separately. On the other hand, the earth and sand that has passed through the fixed grizzly 25 is stored in the generated soil hopper 24, discharged from the lower end, and falls onto the generated soil quantitative supply device 27. The generated soil that has fallen into the generated soil quantitative supply device 27 is gradually transferred to the front of the vehicle body, and then falls from the tip to the inside of the crushing and mixing device 26. The additive is supplied from the additive quantitative supply device 29, and falls into the crushing and mixing device 26 together with the additive.

The crushing / mixing device 26 together with the additives
The generated soil transported into the inside is finely crushed inside the crushing and mixing device 26, and is sufficiently mixed with the additive material.
The soil is improved to a good quality soil suitable for backfill. The improved soil that has been improved in the crushing and mixing device 26 is transported to a position above the particle size adjusting device 30 by the transport conveyor 31 and falls into the inside of the particle size adjusting device 30 from the tip thereof. Inside the particle size adjusting device 30, the improved soil is gradually divided into a predetermined size by a vibrating sieve, and the improved soil having a finer particle size than the predetermined particle size passes through the conveyor 32 and is fed to the improved soil discharge conveyor. 33: Onboard type soil improvement device 2
The vehicle is discharged to the front of the driver's seat 22 of No. 0. Further, the improved soil having a particle size larger than a predetermined particle size is discharged outside from the rear portion of the vehicle body 21 by the oversize discharge conveyor 34.

Next, referring to FIG. 3, a description will be given of a state where the vehicle-mounted generated soil improvement device 20 of this embodiment is installed at an excavation site and is actually used. FIG. 3 is a diagram showing a situation where a road R is excavated in order to lay a buried object such as a pipe on the road R in an urban area. A groove 40 is excavated on the road, and the vehicle-mounted generated soil improvement device 20 of this embodiment is stopped near the groove 40 with its rear portion facing the groove. An excavator (a backhoe is used in this embodiment) 41 is disposed between the on-board generated soil improvement device 20 and the groove 40, and the excavator 42 of the excavator 41 excavates the groove 40. I have. Further, a container 43 for improved soil is disposed in front of the on-board generated soil improvement device 20, and the container 43 is transported by a lift truck 44.

In the above configuration, the excavator 41 is
And the excavator 42 moves the groove 4
Drill the 0 end. The excavator 41 is moved to the rear part of the on-board generated soil improvement device 20 while the excavator 41 is held in the excavator 42 while the excavator 42 retains the sediment generated during excavation. Is thrown into the soil hopper 24 at one time. The earth and sand thrown into the generated soil hopper 24 is temporarily stored in the generated soil hopper 24 except for large blocks removed by the fixed grizzly 25. The large lump removed by the fixed grizzly 25 falls to the rear part of the vehicle body 21 and is stored in a large lump bag, and then processed separately.

As described in the operation of the present embodiment, the generated soil introduced into the generated soil hopper 24 is improved by the on-vehicle type generated soil improvement device 20, and then the improved soil having a small particle size is converted into an improved soil discharge conveyor. By 33, it is loaded into the improved soil container 43 located in front of the driver's seat 22. The improved soil loaded on the improved soil container 43 is transported by the lift truck 44 to the side of the groove 40 excavated for each of the improved soil containers 43, 43,.
Buried in the groove 40 sequentially. Further, the coarse-grained improved soil separated by the particle size adjusting device 30 is transferred to the rear part of the vehicle body 21 by the oversize discharge soil conveyor 34, and then is loaded on the oversize container 45 and temporarily stored. . Then, the improved soil in the oversize discharge container 45 is fed into the generated soil hopper 24 again by the excavator 41 when manufacturing the improved soil having a coarse grain size. Further, as the excavated portion of the groove 40 moves and approaches the on-board generated soil improvement device 20 according to the progress of the construction, the on-board generated soil improvement device 20 is gradually moved forward.

As described above, the on-board generated soil improving apparatus 20 of this embodiment can be freely moved to the excavation site, so that it has high mobility and can improve work efficiency. In addition, the generated soil hopper 24 is a shovel 4 of the excavator 41.
2 is larger than the excavation capacity of the excavator 42, so that the whole amount of the earth and sand scooped by the shovel 42 is generated all at once.
It is very effective when the excavator 41 has no waiting time, the work can be shortened, and the construction period is limited such as the road R. Further, since the improved soil is finely crushed by the crushing and mixing device 26, it can be sufficiently mixed with the additive material to obtain a high quality improved soil, and the consolidated soil is clogged in each device. Therefore, the equipment does not break down and the work is not interrupted.

Further, since the improved soil can be manufactured, the improved soil sufficiently wraps around a small gap around a buried object such as a pipe laid inside the excavated groove 40 and is backfilled. There is no space left around the buried object. Further, it is no longer necessary to separately bring in the sand around the pipe using a dump truck or the like, which can improve work efficiency and safety at the site.

Next, a case where the vehicle-mounted type soil improvement device 20 of this embodiment is installed and used in a temporary storage site for generated soil will be described with reference to FIG. FIG. 4 shows a state in which generated soil is temporarily stored in a temporary storage site, and this is being processed using the on-board type generated soil improvement device 20 of this embodiment. Inside the site surrounded by a wall 50,
The generated soil 51 is temporarily stored. Aside from the stored generated soil 51, a vehicle-mounted generated soil improvement device 20 is disposed with its rear portion facing the generated soil side. An arm 5 is provided between the vehicle-mounted generated soil improvement device 20 and the generated soil 51.
An excavator 54 to which a shovel 53 is attached at the tip of 2 is arranged.
One end of the conveyor 55 is located near the tip of the improved soil discharge conveyor 33 protruding from the soundproof cover 23. At the other end of the conveyor 55, the improved soil 56 transferred by the conveyor is stored. A dump truck 57 for transporting the improved soil 56 to the excavation site is stopped in the site.

In the above configuration, the excavated soil 51 is scooped by the excavator 53 of the excavator 54, and the excavator 53 is rotated while the arm 52 of the excavator 54 is rotated while the excavator 53 is held. After being moved to above the generated soil hopper 24 at the rear of the improvement device 20, the excavator 53 is rotated to throw the generated soil 51 in the shovel into the generated soil hopper 24 at a time. As described in the operation of the above-described embodiment, the generated soil 51 put into the generated soil hopper 24 is finely improved soil 5 while being transferred through the apparatus.
As 6, it is discharged out of the vehicle-mounted generated soil improvement device 20 by the improved soil discharge conveyor 33, and stored in a predetermined place by the transport conveyor 55. And this improved soil 56
Is transported to the excavation site by the dump truck 57 as necessary.

The large lumps and the coarse-grained improved soil removed by the fixed grizzly 25 are treated in the same manner as the above-described excavation site. In this case, the on-board type soil improvement device 20
Is used in a stopped state at the same place as the improved soil treatment device. As described above, even the temporary storage site type can be used in the same manner as the site installation type, and the same operation and effect can be obtained.

[0025]

As described above, the capacity of the hopper (24) of the on-board type soil improvement device (20) of the present invention is larger than the amount of soil excavated at one time by the excavator (41). , All of the earth and sand excavated by the excavator (41) can be put into the hopper (24) at one time, so that there is no waiting time for the operation of the excavator (41) , the work efficiency can be increased, and the construction period can be shortened. Can be achieved. The hopper (2
4) The generated soil put into the system is the generated soil quantitative supply device (2).
7) and supplied to the disintegration mixing device (26).
Since it is finely crushed by the crushing / mixing device (26) , it can be sufficiently mixed with the additive material to produce a high quality improved soil, and the consolidated soil is transferred as it is through the device and clogged. Will not break down. In addition, since it is possible to produce an improved soil having a fine grain size, for example, even when laying a pipe or the like in an excavation space, the improved soil sufficiently wraps around a small gap around the pipe and is backfilled. In this case, no gap is left around the pipe. In addition, the generated soil
In the soil in the quantity supply device (27), the additive
From (29), a specified amount of additive material can be supplied
So that a certain amount of additive
Can supply and produce high quality improved soil.
Wear. Further, a vibrating sieve is provided in the particle size adjusting device (30).
This vibrating sieve allows the improved soil to reach a predetermined size.
Gradual improvement, finer than the specified particle size
The soil is discharged in front of the on-board type soil improvement device (20).
And larger than a specified particle size
Improved soil is delivered to the oversize discharge conveyor (34).
Therefore, from the rear portion of the vehicle body (21) to the outside of the vehicle body (21)
To improve operating efficiency.
While it is possible to improve the
Reuse of good soil can also be facilitated. In addition,
Except for the opening of the hopper (24)
Since the soundproof cover (23) is provided,
The sound can be reduced and the generated dust spreads
Can be prevented.

[Brief description of the drawings]

FIG. 1 is a front view of the inside of a vehicle-mounted generated soil improvement device according to an embodiment of the present invention.

FIG. 2 is a perspective view of the inside of a vehicle-mounted generated soil improvement device according to an embodiment of the present invention.

FIG. 3 is a perspective view for explaining a situation in which a vehicle-mounted type soil improvement device according to an embodiment of the present invention is actually used at an excavation site.

FIG. 4 is a perspective view for explaining a situation in which the on-board type generated soil improvement device according to one embodiment of the present invention is used in a temporary storage site for generated soil.

FIG. 5 is a front view of a conventional vehicle-mounted generated soil improvement device.

FIG. 6 is a plan view of a conventional vehicle-mounted generated soil improvement device.

FIG. 7 is a front view for explaining a use situation of a conventional vehicle-mounted generated soil improvement device.

[Explanation of symbols]

 Reference Signs List 20 on-board type soil improvement device 24 hopper 26 crushing and mixing device 30 particle size adjusting device 41, 54 excavator G ground

Continuing from the front page (72) Inventor Shishin Tsutsumi 1-1-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation (72) Inventor Jiro Kokubo 3-3 Sarugakucho, Shibuya-ku, Tokyo Telegraph and telephone construction Within the Association (56) References JP-A-60-65837 (JP, A) JP-A-57-121086 (JP, A) Japanese Utility Model Application 58-76657 (JP, U) (58) Fields investigated (Int. . ⁷ , DB name) E02F 7/00

Claims (1)

(57) [Claims] 1. An on-board generated soil improvement device (20) for reusing earth and sand generated by excavating the ground with an excavator (41) as a replacement material suitable for backfilling, wherein the excavator comprises: (41) a hopper (24) having a capacity larger than the amount of sediment to be scooped at one time, and a soil generated quantitative supply device (27) from the hopper (24).
With finely crushed sand supplied via a by mixing with the additive material crushing mixing device for performing soil improvement (26), the improved soil to a certain particle size in the crushing mixing device (26) Covering each device except for the particle size adjusting device (30) to be sieved and the opening of the hopper (24)
Soundproof cover (23) provided on the vehicle body (21)
And the additive in the soil in the generated soil quantitative supply device (27)
A predetermined amount of additive can be supplied from the fixed amount supply device (29).
The particle size adjusting device (30) is provided with a vibrating sieve.
The vibrating sieve gradually separates the improved soil into a predetermined size.
The improved soil finer than the specified grain size is
It is discharged to the front of the generated soil improvement device (20)
And it has also improved soil of a larger particle size than the predetermined particle size, over
Body body (21) by size discharge conveyor (34)
To be discharged from the rear of the vehicle body (21)
An on- board type soil improvement device characterized by the following.