JPH07127090A - On-vehicle type generating earth improving device - Google Patents

Abstract

PURPOSE:To produce good quality improved earth by using a cracking-mixing device to improve the soil by mixing an additive after earth and sand supplied from a hopper are finely cracked and a grain size adjusting device to sift out the earth and sand improved by this. CONSTITUTION:Excavated earth and sand are inputted to a hopper 24 through a fixed qrizzly 25, and are dropped in a rear part of a car body itself 21. On the other hand, the earth and sand passing through the fixed grizzly 25 are stored in the hopper 24, and are dropped on a generating earth regulated volume supply device 27, and are transferred forward. In this case, an additive is supplied to generating earth dropped in the device 27 by an additive regulated volume supply device 29, and is dropped in a crackingmixing device 26 together with this. Next, the generating earth is cracked in the cracking-mixing device 26, and is sufficiently mixed with the additive. Improved earth improved in the device 26 is also carried to a grain size adjusting device 30, and is classified by the prescribed size, and the improved earth finer than the prescribed size is discharged to the front of an operation seat 22 by a conveyor 33 through a conveyor 32, and the large improved earth is discharged from the rear part of the car body itself 21 by a conveyor 34, respectively. Thereby, the working efficiency can be heightened, and a construction period can be shortened.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an on-vehicle generated soil improving apparatus used for reusing generated soil as a replacement material suitable for backfilling when laying buried objects on roads, and particularly for work. The present invention relates to an on-vehicle generated soil improving device for improving efficiency and producing high-quality improved soil.

[0002]

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

This mixer 8 is a so-called pug mill having two parallel rotating shafts provided with paddles or spiral blades, and the above-mentioned sediment constant quantity feeder 5 and slaked lime constant quantity feeder 7 are provided.
It is for transporting to the front of the vehicle body 2 while mixing a certain amount of sand and slaked lime supplied from the vehicle. A bucket conveyor 9 is vertically connected to the terminal end of the mixer 8, and the bucket conveyor 9 transfers the slaked lime and the earth and sand mixed in the mixer 8 above the vehicle body. At the outlet 10 provided at the upper end of the bucket conveyor 9, a belt conveyor 11 arranged in the front-back direction of the vehicle body is provided, and the tip of the belt conveyor 11 passes through the upper part of the driver's seat 3 to the front. It has a flexible structure. And this on-vehicle type soil-raising device 1 is
As shown in FIG. 7, an excavator 12 for excavating the ground
Alternatively, it is used as a pair with the truck 13 for carrying the improved replacement material and carrying it to the place of backfilling.

Next, a working situation using the conventional vehicle-mounted type soil improvement apparatus will be described. First, as shown in FIG. 7, the in-vehicle generated soil improvement device 1 is arranged at a predetermined distance from the excavator 12 installed at an excavation point such as a road,
In addition, a truck 13 is installed in front of the vehicle-mounted type soil improvement device 1 at a predetermined interval. And excavator 1
The ground is excavated by the shovel 14 provided at the tip of No. 2, but the excavated soil remains as it is.
It is lifted by and is thrown into the earth and sand hopper 4 of the in-vehicle type soil improvement apparatus 1. As shown in FIG. 5 and FIG. 6, a fixed amount of the fed earth and sand is sent to the mixer 8 by the earth and sand constant amount supply device 5, and in the mixer 8, the slaked lime hopper 6
Is sent to the bucket conveyor 9 while being mixed with a fixed amount of slaked lime supplied from the slaked lime quantitative feeder 7.

The earth and sand sent to the bucket conveyor 9 are transferred upward, and then discharged from the discharge port 10 onto the belt conveyor 11, and by this belt conveyor 11, the driver's seat 3
Is discharged to the front through the above. Then, the improved soil transferred by the belt conveyor 11 falls from the tip of the belt conveyor 11 and is loaded on the loading platform of the truck 13 arranged below the belt conveyor 11, and is transported to the excavation point by the truck 13 and backfilled. Be done.

[0006]

However, in the above-mentioned conventional vehicle-mounted type soil improvement device 1, the capacity of the earth and sand hopper 4 installed in the vehicle body 2 excavates the earth and throws it into the inside thereof. Since the excavator 14 excavator 14 has a smaller excavation capacity per excavator 12, it is not possible to put all of the earth and sand excavated by the excavator 12 into the earth and sand hopper 4 at a time, and the earth and sand in the earth and sand hopper 4 moves downward. It is necessary to wait until the empty space is discharged in the earth and sand hopper, and the earth and sand hopper 4 contains earth and sand of various particle sizes, which are directly contained in the mixer 8. Although it will be supplied, it cannot be crushed into small pieces inside the mixer 8, and mixing with the additive material is insufficient, and solidified soil often causes clogging in the mixer 8, and If the device breaks down, Since it is not possible to manufacture improved soil with a fine grain size, for example, when backfilling the improved soil in this hole after installing buried objects such as pipes in the excavated trench, There was a problem that the soil around the pipe with a fine grain size had to be carried in separately with a dump truck or the like in a place where it could not sufficiently go around and was filled in these small gaps.

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 generated soil improving apparatus capable of efficiently producing improved soil of high quality.

[0008]

An on-vehicle generated soil improving apparatus of the present invention for solving the above problems is provided with a hopper having a capacity larger than the amount of earth and sand scooped by an excavator at one time, and from this hopper. The equipment was equipped with a crushing and mixing device for finely crushing the soil and sand that is mixed with an additive to improve the soil quality, and a particle size adjusting device for sieving the sand and sand improved by this crushing and mixing device to a certain particle size. Is characterized by.

[0009]

In the on-vehicle generated soil improving apparatus of the present invention, all the scooped earth and sand excavated by the excavator is thrown into the hopper in one step. Then, since the earth and sand put in the hopper is finely crushed by the mixer, it is sufficiently mixed with the additive material to produce a good quality improved soil, and also clogging may occur in the device. Absent. Further, since the improved soil produced by the crushing and mixing device is separated by the particle size adjusting device into the improved soil having a fine particle size, for example, it is used as a backfill material for laying pipes, etc. in trenches excavated from this improved soil. Even when doing so, the improved soil does not enter even a small gap around the pipe and no gap is formed around the backfilled pipe.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A vehicle-mounted type soil improvement apparatus of the present invention will be described below with reference to the drawings. 1 and 2 show an on-vehicle generated soil improving apparatus according to an embodiment of the present invention, and FIG. 3 is an explanatory view showing a situation where the on-vehicle generated soil improving apparatus is actually used at a road excavation site. is there. In the figure, reference numeral 20 is a vehicle-mounted type soil improvement apparatus of this embodiment, and the vehicle body portion is composed of 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 stored and installed in the soundproof cover 23. An inclined surface is formed at the rear of the ceiling of the soundproof cover 23, and a sediment hopper 24 for introducing the excavated sediment 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 one time by an excavator of an excavator, which will be described later.
A fixed grizzle 25 of 0 mm is attached to the inclined surface.

At the lower end of the earth and sand hopper 24, there is provided a generated earth supply device 27 for transferring the earth and sand from the earth and sand hopper to the crushing and mixing apparatus 26, and next to the crushing and mixing apparatus 26, an additive material hopper 28 is provided. is set up. Generated soil supply device 2
7 is inclined upward as it goes to the front end portion (front of the vehicle body), and the front end portion 7 is arranged above the crushing and mixing device 26. The additive material hopper 28 is for temporarily storing an additive material (for example, slaked lime) that is mixed with earth and sand to improve it as a replacement material suitable for backfilling. Hopper 28
In the lower part of the above, an additive material quantitative supply device 29 for supplying the additive material to the vicinity of the tip of the generated soil supply device 27 is provided.

Below the crushing and mixing device 26, there is a vehicle body 21.
A transport conveyor 31 for transporting the improved soil is provided in the grain size adjusting device 30 disposed in front of the. The conveyor 31 is inclined upward as it goes to the front of the vehicle body 21, and is attached so that its tip end is located above the grain size adjusting device 30. A vibrating sieve is used for the particle size adjusting device 30, and a conveyer conveyor 32 extending in the width direction of the vehicle body 21 is attached to the lower part 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 produced as a backfill material by this device to the outside of the on-vehicle generated soil improving device 20, and has one end located near the floor surface of the vehicle body 21. Is housed inside the soundproof cover 23, and the other end is in the driver's seat 2
It extends to the upper front of the driver's seat via the side of 2.

A discharge conveyor 34 extends along the inside of the soundproof cover 23 at the side of the vehicle body 21, one end of the discharge conveyor 34 is located near the lower end of the grain 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 devices is installed on the side of the vehicle body 21.
A power source 36 for driving these devices is mounted on the rear portion.

Next, the operation of the vehicle-mounted type generated soil improving apparatus 20 of this embodiment will be described.

The earth and sand excavated by the excavator described later is
It is thrown into the generated soil hopper 24 through the fixed grizzly 25. Since the fixed grizzly 25 is formed in a mesh of 100 mm, solidified soil, stones or the like having a size larger than this mesh cannot pass through the fixed grizzly 25, and the fixed grizzly 25 has an inclined surface along the vehicle body. It is designed to fall to the rear of the main body 21. The dropped lump is stored separately in a lump bag (not shown) and then processed separately. On the other hand, the earth and sand that have passed through the fixed grizzly 25 are stored in the generated soil hopper 24, then discharged from the lower end and dropped onto the generated soil fixed amount supply device 27. The generated soil that has fallen into the generated soil fixed amount 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 material is supplied from the additive material constant amount supply device 29 and drops into the crushing and mixing device 26 together with the additive material.

Then, the crushing and mixing device 26 together with the additive material
The generated soil conveyed into the inside is finely crushed inside the crushing and mixing device 26, and is sufficiently mixed with the additive material,
It will be improved to a good quality improved soil suitable for backfilling. The improved soil improved in the crushing and mixing device 26 is conveyed to above the particle size adjusting device 30 by the conveyer 31 and falls from the tip portion thereof into the particle size adjusting device 30. Inside the grain size adjusting device 30, the improved soil is gradually divided into a predetermined size by a vibrating screen, and the improved soil having a finer grain size than a predetermined grain size passes through a conveyor 32 and an improved soil discharge conveyor. In-vehicle generated soil improvement device 2 by 33
It is discharged to the front of the driver's seat 22 of 0. Further, the improved soil having a grain size larger than a predetermined grain size is discharged to the outside from the rear portion of the vehicle body body 21 by the oversize discharge conveyor 34.

Next, with reference to FIG. 3, a state in which the vehicle-mounted type soil improvement device 20 of this embodiment is installed at an excavation site and is actually used will be described. FIG. 3 is a diagram showing a situation in which the road R is being 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 on-vehicle generated soil improvement device 20 of this embodiment is stopped near the groove 40 with its rear portion facing the groove side. An excavator (a backhoe is used in the present embodiment) 41 is arranged between the vehicle-mounted type soil improving device 20 and the groove 40, and the excavator 42 of the excavator 41 excavates the groove 40. There is. Further, an improved soil container 43 is arranged in front of the on-vehicle generated soil improvement device 20, and the container 43 is transferred by a lift truck 44.

In the above structure, the excavator 41 is installed in the groove 40.
Of the groove 4 by the shovel 42.
Drill the end of 0. Then, the excavator 41 is moved to the rear part of the on-vehicle generated soil improving device 20 while holding the earth and sand generated during excavation inside the excavator 42, and then the excavator 42 is rotated, whereby the excavator 42 is rotated. The generated soil of (1) is thrown into the generated soil hopper 24 at a time. The earth and sand put into the generated soil hopper 24 is temporarily stored in the generated soil hopper 24 except for the large lumps removed by the fixed grizzly 25. The large lumps removed by the fixed grizzle 25 fall to the rear part of the vehicle body 21, are stored in the large lump bag, and are separately processed.

The generated soil put into the generated soil hopper 24 is improved by the on-vehicle generated soil improving device 20 as described in the operation of the present embodiment. By 33, it is loaded into the improved soil container 43 located in front of the driver's seat 22. Then, the improved soil having a fine grain size loaded in the improved soil container 43 is transferred by the lift vehicle 44 to the side of the groove 40 excavated for each of the improved soil containers 43, 43.
Are sequentially backfilled inside the groove 40. Further, the improved soil having coarse grain size sorted by the grain size adjusting device 30 is transferred to the rear portion of the vehicle body main body 21 by the oversize discharge soil conveyor 34, and then loaded in the oversize container 45 and temporarily stored. . Then, the improved soil in the oversized discharge container 45 is thrown into the generated soil hopper 24 again by the excavator 41 when manufacturing the improved soil having a coarse grain size. In addition, depending on the progress of the construction, as the excavated portion of the groove 40 moves and approaches the vehicle-mounted generated soil improving apparatus 20, the vehicle-mounted generated soil improving apparatus 20 is gradually moved forward.

As described above, since the vehicle-mounted type soil improvement device 20 of this embodiment can be freely moved to the excavation site, it is highly manoeuvrable and the working efficiency can be improved. In addition, the generated soil hopper 24 is used for the excavator 4 of the excavator 41.
Because the excavation capacity is larger than the excavation capacity of 2, the total amount of earth and sand scooped by the shovel 42 is generated at one time.
It can be put in the inside of the excavator 41, the waiting time of the excavator 41 is eliminated, the work can be shortened, and it is very effective in the case where 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 is possible to sufficiently mix with the additive material to obtain good quality improved soil, and the solidified soil causes clogging in each device. The equipment will not break down and work will not be interrupted.

Further, since it is possible to produce fine improved soil, the improved soil sufficiently wraps around the fine gaps around the buried objects such as pipes laid inside the excavated trench 40 and backfilled. There is no space left around the buried object. Further, it is not necessary to bring in the sand around the pipe, which has been conventionally used, by a dump truck or the like, and the work efficiency and safety at the site can be improved.

Next, with reference to FIG. 4, a case where the on-vehicle generated soil improving apparatus 20 of this embodiment is installed and used in a temporary storage place for generated soil will be described. FIG. 4 shows a state in which the generated soil is temporarily stored in the temporary storage area and is being processed by the in-vehicle generated soil improving apparatus 20 of this embodiment. Inside the site surrounded by the wall 50,
The generated soil 51 is temporarily stored. On the side of the stored generated soil 51, the on-vehicle generated soil improving device 20 is arranged with the rear portion facing the generated soil side. The arm 5 is provided between the in-vehicle generated soil improving device 20 and the generated soil 51.
An excavator 54 having an excavator 53 attached to the tip of No. 2 is arranged, and in front of the in-vehicle type soil improvement device 20,
A transport conveyor 55 is installed with one end located near the tip of the improved soil discharge conveyor 33 protruding from the soundproof cover 23. The improved soil 56 transferred by the transport conveyor is stored at the other end of the transport conveyor 55. Further, a dump truck 57 for transporting the improved soil 56 to the excavation site is stopped at the site.

In the above construction, the excavator 53 of the excavator 54 scoops the generated soil 51, and while holding the generated soil 51 on the shovel 53, the arm 52 of the excavator 54 is rotated to move the excavator 53 to the vehicle-generated soil. After moving to a position above the generated soil hopper 24 at the rear of the improvement device 20, the shovel 53 is rotated to throw the generated soil 51 in the shovel into the generated soil hopper 24 at one time. The generated soil 51 put into the generated soil hopper 24 is a fine, high-quality improved soil 5 while being transferred in the apparatus, as described in the operation of the above-mentioned embodiment.
6 is discharged outside the on-vehicle generated soil improving device 20 by the improved soil discharging conveyor 33, and is stored in a predetermined place by the transporting conveyor 55. And this improved soil 56
Will be transported to the excavation site by the dump truck 57 as needed.

The large lumps removed by the fixed grizzly 25 and the improved soil having a coarse grain size are treated in the same manner as in the case of the excavation site described above. In this case, the in-vehicle type soil generation improving device 20
Is used in the same place as the improved soil treatment equipment. In this way, even the temporary storage type can be used in the same manner as the on-site type, and the same effect can be obtained.

[0025]

As described above, in the in-vehicle generated soil improving apparatus of the present invention, since the capacity of the hopper is larger than the amount of earth and sand excavated by the excavator at one time, all of the earth and sand excavated by the excavator. Can be put into the hopper all at once, the waiting time for the work of the excavator can be eliminated, the work efficiency can be improved, and the construction period can be shortened. Further, since the generated soil put into the hopper is finely crushed by the crushing and mixing device, it can be sufficiently mixed with the additive material to produce high-quality improved soil, and the solidified soil remains in the device as it is. It is also possible to prevent the equipment from being broken due to being transferred and clogging. Also, since it is possible to produce improved soil with a fine grain size,
For example, even when laying pipes or the like in the excavation space, the improved soil sufficiently wraps around the small gaps around the pipes, and no gaps remain around the pipes when backfilling.

[Brief description of drawings]

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

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

FIG. 3 is a perspective view for explaining a situation in which the vehicle-mounted type soil improvement device according to the 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 vehicle-mounted type soil improvement device according to the embodiment of the present invention is used in a temporary storage place for generated soil.

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

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

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

[Explanation of symbols]

 20 Vehicle-Mounted Soil Improving Device 24 Hopper 26 Crushing Mixing Device 30 Particle Size Control Device 41,54 Excavator G Ground

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shishino Tsutsumi 1-6, Uchisaiwaicho, Chiyoda-ku, Tokyo Inside Nippon Telegraph and Telephone Corporation (72) Inventor Jiro Kokubo 3-3, Sarugaku-cho, Shibuya-ku, Tokyo Corporate Telegraph and Telephone Construction Association

Claims (1)

[Claims] 1. An on-vehicle generated soil improving device for reusing the earth and sand generated by excavating the ground with an excavator as a replacement material suitable for backfilling, the earth and sand being scooped at one time by the excavator. The hopper having a capacity larger than that of the hopper, the crushing / mixing device for finely crushing the soil / sand supplied from the hopper, and the improvement of the soil quality by mixing with the additive, and the soil / sand improved by this crushing / mixing device. An in-vehicle generated soil improving device, which is equipped with a particle size adjusting device for sieving the same into a certain particle size.