JPH03422Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a soft ground treatment device that treats and stabilizes soft ground such as a reclaimed land.

<Conventional technology> In general, there are the following cases in the treatment of soft ground.

(1) What to do if the area where the coast, etc. has been dredged and reclaimed is soft.

(2) Wetland treatment.

(3) Treatment of areas where industrial waste is deposited.

In addition, deep layer treatment includes treatment of coastal ground, but in general cases (1) to (3) are most common, and conventionally, soft ground treatment equipment such as the one shown in JP-A-58-127829 has been used. , and performs stabilization processing.

Such a conventional soft ground treatment device is shown in FIG.

In the figure, 1 is a self-propelled vehicle that has crawlers 1A around each of a pair of floats (not shown) provided on both sides, and 2 is a self-propelled vehicle that is attached to the front of the vehicle 1 via a bracket 3, and has a width larger than the width of the vehicle 1. A mixer support rod 4 extending in the left-right direction is a mixer attached to the mixer support rod 2 so as to be movable in the left-right direction and the up-down direction.

As shown in the figure, such a soft ground treatment device
By intermittently moving the vehicle 1 as shown by arrow A and sequentially moving the mixer 4 along a horizontal line as shown by arrow B, it is used to stabilize an area as wide as the mixer support rod 2.

<Problems to be solved by the invention> In such a soft ground treatment device, since the float and the crawler 1A are attached to the vehicle 1, the vehicle 1 does not sink into the soft ground and can be freely moved by the crawler 1A. It is now possible to move.

However, when processing the boundary between relatively hard soft ground and extremely soft ground, the float equipped crawler 1A on one side of the vehicle 1 is located on relatively hard soft ground, and the float equipped crawler 1A on the other side If 1A is located on extremely soft ground, the different degrees of softness will cause vehicle 1 to lose its balance and cause vehicle 1 to
Also, the mixer support rod 2 is tilted, and the shape of the treated soil is not constant in the depth direction, making it difficult to manage the finished shape. Also, in extremely soft ground,
Due to the movement of mixer 4 in the left and right direction, vehicle 1
Since the balance is lost, there is a limit to how long the mixer support rod 2 can be extended in order to increase the horizontal movement range of the mixer 4, and it is not possible to widen the construction area in the horizontal direction and improve workability. .

Incidentally, a conventional vehicle is known in which an auxiliary traveling body is connected to the side of a main traveling body (see Japanese Patent Laid-Open No. 58-98517).

However, in this conventional system, the main traveling body and the auxiliary traveling body are not detachable and are always fixed, so the number of auxiliary traveling bodies used and the connection points to the main traveling body are fixed. ,
For example, it is not possible to change the number of auxiliary traveling bodies used or the connection points to accommodate various types of soft ground, etc., and the auxiliary traveling bodies cannot be removed even when they are not needed, resulting in poor usability. It was hot.

The present invention was developed in view of the conventional problems mentioned above, and has a structure that allows auxiliary float-equipped traveling bodies to be added to the vehicle by selecting the number of them and the connection points as necessary, thereby making it easier to carry out work. The purpose is to stabilize vehicles and improve workability.

<Means for Solving the Problems> For this reason, the present invention provides a vehicle that is equipped with floats on both the left and right sides of a frame and crawlers around the floats so that it can run on its own, and a vehicle that is equipped with floats on both left and right sides of the frame and has crawlers around the floats. at least one auxiliary traveling body that is configured to include a crawler around the float, is detachably connected to the side of the vehicle via a connecting means, and is capable of self-propelled in the traveling direction of the vehicle; and a bracket is provided on the front surface of the vehicle. a mixer support rod that is attached to the mixer support rod and extends in the left-right direction beyond the width of the connecting structure between the vehicle and the traveling body; and a mixer attached to the vehicle and the auxiliary traveling body, and the connecting means is connected to a connecting portion provided on each of the longitudinal frames located on both sides of the vehicle and the auxiliary traveling body, and when the vehicle and the auxiliary traveling body are connected. It is composed of a connecting frame that connects connecting parts that face each other laterally.

<Function> Stabilization work is performed while the mixer moves left and right with the vehicle stopped, and by adding auxiliary running bodies as necessary, the vehicle can be stabilized and stability has been improved. As a result, since the mixer support rod can be extended, the construction area in the left and right direction can be increased and construction efficiency can be improved.

<Example> Hereinafter, an example of the present invention will be described based on FIGS. 1 to 3.

In the figure, 10 is a vehicle, and 11 is formed by a vehicle frame 11a and a left-right frame 11b.

Floats 12 are provided on both left and right sides of the vehicle frame 11, respectively. This float 12
Self-propelled crawlers 13 of the vehicle 10 are respectively attached around the .

A driver's cab 14 is mounted on the upper part of the vehicle frame 11.
is provided. Further, a drive mechanism 15 for driving the vehicle and other parts, such as an engine and a hydraulic pump, is mounted on the rear upper part of the vehicle frame 11, and all of these can be operated from the driver's cab 14.

At the front end of the vehicle frame 11, brackets 16 are attached to the front end of the vehicle frame 11 at approximately equal intervals in the left-right direction so as to project forward and be freely rotatable. This bracket 16
A support rod frame 18 having upper and lower mixer support rods 17 extending parallel to the left-right direction of the vehicle 10 is disposed at the front end of the vehicle 10.
is installed. Further, a bracket 19 is fixed to the center of the vehicle frame 11 in the left-right direction in front of the driver's cab 14, extending upward and forward at a predetermined interval. A hydraulic cylinder 20 is disposed between the upper end of the bracket 19 and the support rod frame 18, respectively. A mixer support frame 21 is attached to the mixer support rod 17 so as to be movable in the left-right direction. A mixer frame 22 is attached to the mixer support frame 21 so as to be freely movable up and down. A hydraulic cylinder 22a is disposed between the mixer support frame 21 and the mixer frame 22, and the mixer frame 2
2 can be moved up and down with respect to the mixer support frame 21. Upper and lower sprockets 23, 24 are provided at one end of the support rod frame 18, and sprockets 25, 26 are provided at the other end, facing the sprockets 23, 24. The sprockets 24, 26 are rotationally driven by hydraulic motors 24a, 26a. Further, one end of a chain 29 is fixed to one end of the mixer support frame 21 in the left-right direction. This chain 29 is sprocket 2
3, 27, 24, 26, 28, and 25 are wound in this order and fixed to the other end of the mixer support frame 21.

At the top of the mixer frame 22, there is a mixer drive device (motor, speed reducer, etc.) having a rotation shaft in the front and back direction.
30 are provided. Moreover, the mixer drive device 30
A drive shaft 31 in the front-rear direction is provided below. This drive shaft 31 is rotatably driven by a drive device 30 via a chain 32. The drive shaft 31 has a plurality of small sprockets 3.
1a is attached. A stirring shaft 34 is supported below the drive shaft 31 by front and rear bearing plates 33, and is oriented in the same direction as the drive shaft 31. This stirring shaft 34 has the above-mentioned small sprocket 3.
A plurality of large sprockets 34a are attached opposite to 1a. A stirring chain 35 having a stirring claw 35a attached thereto is wound around the small sprocket 31a and the large sprocket 34a, respectively.

The mixer A is constituted by the mixer frame 22, the mixer drive device 30, the drive shaft 31, the stirring shaft 34, and the stirring chain 35.

On the other hand, on the left and right sides between the bases of the bearing plate 33 are injection nozzles 3 for stabilizing material such as cement slurry.
6 installed. When the mixer A is moving to the right with respect to the mixer support rod 17, the stirring shaft 34 rotates clockwise and the stabilizer is injected by the nozzle 36 on the right side. When mixer A moves to the left,
This is the opposite of the above. Also, mixer A
comes to one end of the support rod 17, the motors 24a,
The rotation of 26a and the injection of stabilizer by nozzle 36 are stopped.

In the soft ground treatment apparatus having the above configuration, auxiliary running bodies 40A and 40B are provided which are detachably connected to the side of the vehicle 10.

That is, 41 is a frame of the auxiliary traveling bodies 40A, 40B, which is formed by a frame 41b in the front-rear direction and a frame 41a in the left-right direction, respectively.

A float 42 is provided on each of the frames 41 of the auxiliary traveling bodies 40A and 40B. Self-propelled crawlers 43 of the auxiliary traveling bodies 40A and 40B are attached around the float 42, respectively.

At the front end of the frame 41, brackets 46 are attached to the front end of the frame 41 at approximately equal intervals in the left-right direction and project forward, respectively, so as to be freely rotatable. The front end of this bracket 46 is adapted to be detachably attached to the support rod frame 18.

These auxiliary traveling bodies 40A and 40B are respectively connected to the vehicle 1.
They are arranged in parallel at the left and right positions of 0 with a predetermined interval between them. The auxiliary traveling bodies 40A, 40B and the vehicle 10 are detachably connected to each other via a connecting means.

That is, this connecting means includes connecting portions 11c and 41c provided on the frames 11b and 41b in the longitudinal direction located on both sides of the vehicle 10 and the auxiliary traveling bodies 40A and 40B, respectively, and connecting portions 11c and 41c provided on the respective frames 11b and 41b in the longitudinal direction,
Connection frame 4 that connects connecting parts 11c and 41c that face each other laterally when connected to 0A and 40B
It consists of 3 and.

By removing the connection frame 43 and removing the bracket 46 from the support rod frame 18, the auxiliary traveling bodies 40A, 40B can be removed from the vehicle 10.

Next, a method of using the apparatus configured as described above will be explained.

First, operate the hydraulic cylinder 22a to mixer A.
is lifted upward and the support rod frame 18 is rotated by the hydraulic cylinder 20 to prevent the mixer A from touching the ground.

Next, the vehicle 10 is driven and enters a weak processing site. At the processing site, mixer A is moved to one end of support rod 17, and then hydraulic cylinder 2
0,22a to lower mixer A,
Insert the lower end of mixer A into the soft ground to a predetermined depth. Further, a stabilizer liquid supply pipe such as slurry cement is connected to the nozzle 36. The feeding of this stabilizer is as follows:
This is usually done using stabilizing material supply equipment installed outside the landfill construction site.

The mixer chain 35 is driven by the mixer drive device 30.
The motors 24a, 2 rotate in a predetermined direction.
6a to move the mixer A toward the other end of the mixer support rod 17, and inject the stabilizer into the stirring portion from one of the nozzles 36. When the mixer A reaches the other end of the mixer support rod 17, the vehicle 10 is moved backward by a predetermined distance, the rotation direction of the mixer A is changed, and the mixer A is sent in the opposite direction while injecting the stabilizer from the predetermined nozzle 36. Carry out stabilization work.

Due to this effect, the stabilization process can be performed while the vehicle 10 is stopped while the mixer A moves at a constant speed in the left and right direction, and there is an advantage that the stabilization process can be performed efficiently and with a small number of man-hours.

Here, during the above-mentioned work on general soft ground, that is, comparatively hard soft ground whose hardness is uniform, the auxiliary traveling bodies 40A, 40
Although it is used with 40A removed, when working on special soft ground as shown below, use the auxiliary traveling body 40A,
40B is used as described below.

That is, when processing the boundary between relatively hard soft ground and extremely soft soft ground, the crawler 13 with the float 12 on one side of the vehicle 10 is located on the relatively hard soft ground, and the float on the other side is located on the relatively hard soft ground. The crawler 13 with 12 is located on extremely soft ground. In this case, due to the difference in soft ground, the vehicle 10 loses its balance, causing the vehicle 10 and the mixer support rod 17 to tilt, and the shape of the treated soil is not constant in the depth direction, making it difficult to manage the finished shape. It becomes something. Therefore, when performing such work, the crawler 1 with float 12 located on extremely soft ground must be
For example, one auxiliary traveling body 40A is attached to the third side. Therefore, as a result, a large buoyant force is exerted by the auxiliary traveling body 40A on the side of the crawler 13 with the float 12 located on the extremely soft ground of the vehicle 10, so that the vehicle 10 does not lose its balance. The vehicle 10 and the mixer support rod 17 are prevented from tilting.

In addition, when the entire processing section is on extremely soft ground, auxiliary running bodies 40A and 40 are installed on the crawler 13 side with floats 12 located on both sides of the vehicle 10, respectively.
Attach and use B. As a result, even if the mixer support rod 17 is extended long to increase the horizontal movement range of the mixer A, the balance of the vehicle 10 will not be lost due to the horizontal movement of the mixer A.
It becomes possible to widen the construction area and improve construction efficiency.

According to this configuration, since the auxiliary traveling bodies 40A and 40B are configured to be freely attachable and detachable from the vehicle 10, the auxiliary traveling bodies 40A and 40B, which are unnecessary on general soft ground, can be removed as described above. It is easy to use because it can be stored and only be attached and used when needed. Further, in this embodiment, the mixer AA is connected to the vehicle 10 and the auxiliary traveling body 40.
Since the mixer A is supported by the connecting body with A and 40B, the mixer A is stably supported and stable work can be performed without losing balance.

Note that in this embodiment, 2
Although the two auxiliary traveling bodies 40A and 40B are freely attached and detached, three, four, or more may be used.
Only one may be provided on only one side of the .

<Effects of the invention> As explained above, according to the invention, there is a vehicle equipped with a crawler around the float that can run on its own, and a mixer support rod that is movable in the left-right and up-down directions and tiltable in the front-rear direction. In soft ground treatment equipment equipped with mixers attached to Therefore, the construction area in the left and right direction can be increased and construction efficiency can be improved.

In particular, as a result of making the auxiliary float-equipped traveling body freely attachable and detachable, it is possible to vary the number of auxiliary traveling bodies used and the connection points, for example, in response to various types of soft ground. When the attached traveling body is not needed, it can be removed, and it is easy to use because it can be attached and used only when necessary.The attachment and detachment structure of the traveling body is also simple, so it is easy to attach and detach. It is easy to perform, has excellent workability, and has great practical effects.

[Brief explanation of the drawing]

Fig. 1 is a side view showing an embodiment of the soft ground treatment device according to the present invention, Fig. 2 is a plan view of the same embodiment, Fig. 3 is a front view of the same embodiment, and Fig. 4 is a conventional soft ground treatment device. It is an explanatory diagram of a construction method using a ground treatment device. 10...Vehicle, 11, 11a, 11b...Frame, 11c, 41c...Connection part, 12...Float, 13...Crawler, 17...Mixer support rod, 19...Bracket, 40A, 40B...Auxiliary Running body, 41, 41a, 41b...frame,
42...Float, 43...Connection frame.

Claims (1)

[Scope of utility model registration request] A vehicle that is equipped with floats on both the left and right sides of the frame and crawlers around the floats so that it can run on its own, and a vehicle that is equipped with floats on both the left and right sides of the frame and crawlers around the floats that are on the side of the vehicle. at least one auxiliary traveling body that is detachably connected to the vehicle through a connecting means and capable of self-propelled in the vehicle running direction; and a connecting structure that is attached to the front surface of the vehicle via a bracket and connects the vehicle and the traveling body. A mixer support rod extending in the left-right direction beyond the width, and a mixer attached to the mixer support rod so as to be movable in the left-right direction and in the up-down direction and tiltable in the front-back direction, A connecting portion provided on each of the longitudinal frames located on both sides of the vehicle and the auxiliary traveling body, and a connecting frame connecting the connecting portions that face each other laterally when the vehicle and the auxiliary traveling body are connected; A soft ground treatment device characterized by comprising: