JPH09304155A - Metering box for solidifier used for foundation improvement - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a metering box which eliminates a supply loss and which can prevent environmental pollution from being generated owing to dust particles by a method wherein a hollow metering box body whose circumference is surrounded and whose bottom face only is opened is formed and a cyclone and a dust collector are installed at the body. SOLUTION: An opening 2 at the bottom face of a metering box body 1 is grounded to a foundation surface E in a specific position, and the body is erected so as to airtightly shut the inside of the body 1. Then, in this state, a solidifier is supplied to a cyclone 4 from a supply pipe 5. The solidifier which is discharged from the cyclone 4 is accumulated as it is on the foundation surface E at the bottom part of the body 1. At this time, the solidifier which is whirled inside the body 1 is not scattered to the outside of the body 1, and it is collected by a dust collector 7 via a dust-collecting pipe 6. At a point of time when the solidifier in a proper quantity is accumulated, a backhoe is moved, the position of the foundation surface E is changed, and the solidifier by proper quantity is placed sequentially so as to be left. After that, a foundation improvement operation is performed by a stirring and mixing apparatus.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solidifying material measuring box used when discharging powdery solidifying material such as cement onto the upper surface of the ground in order to improve the ground so as to form a foundation for a structure. Is.

[0002]

2. Description of the Related Art Conventionally, in order to build a foundation for a structure, powdery solidifying material such as cement is agitated and mixed with the bottom ground such as a dam, and the improved soil is transported to the foundation where the structure is built. It is used as a base material, or the ground material is improved by stirring and mixing the solidifying material directly with the foundation. And
The ground is improved by using a well-known backhoe equipped with a ground improvement device at the tip of the arm.Before that, the ground to be improved is divided into many areas in consideration of the mixing ratio of solidifying material and soil. The solidified material is discharged from the cyclone into the weighing box, which is installed on the upper surface of the ground for each section and whose upper and lower surfaces are open, and is discarded.

[0003]

However, since the upper and lower surfaces of the weighing box are opened and the powdery solidifying material is discharged into the weighing box, dust is scattered from the upper surface of the weighing box to the surroundings. There was a lot of loss, and this caused dust pollution. Therefore, the present invention has been made to solve the above problems, and an object of the present invention is to provide a solidifying material weighing box used for ground improvement that eliminates supply loss and does not generate dust pollution.

[0004]

In order to achieve the above object, a solidifying material weighing box used for ground improvement according to the present invention forms a hollow weighing box main body by surrounding only the bottom and opening the bottom. The weighing box body is provided with a cyclone for discharging powdery solidifying material such as cement into the weighing box body and a dust collecting device for collecting the solidifying material soaring in the weighing box body. . The solidified material weighing box is attached to the tip of the arm of the backhoe, and the inside of the weighing box body is hermetically sealed when installed on the ground top. As a result, even if the solidifying material is discharged from the cyclone, the solidifying material does not scatter to the outside of the weighing box main body, so that the supply loss is eliminated and dust pollution is prevented.

Further, it is preferable to provide a viewing window on the side wall of the weighing box main body, which is closed by a vertically long transparent plate through which the inside can be seen, so that the amount of the solidified material discharged and accumulated in the weighing box main body is accumulated. Since it can be seen through from the outside, the amount of the solidified material to be disposed can be easily adjusted.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a solidifying material measuring box used for ground improvement according to the present invention will be described below with reference to the drawings.
FIG. 1 shows a use state in which a solidified material weighing box according to the present invention is connected to an arm tip of a self-propellable backhoe so as to be freely movable, and FIG. 2 is an enlarged sectional view of the solidified material weighing box. . In the figure, reference numeral 1 denotes a hollow weighing box main body which is formed by surrounding the periphery and opening only a bottom surface thereof. A cyclone 4 is penetratingly installed on a top plate 3 of the weighing box main body 1. A supply pipe 5 for pressure-feeding cement, which is a powdery solidifying material, is connected to the cyclone 4. Further, the supply pipe 5 is connected to a tank truck which is a supply source of the solidifying material (not shown).

Further, a dust collecting pipe 6 is connected to the top plate 3 of the weighing box main body 1, and a cartridge type dust collecting device 7 is connected to the dust collecting pipe 6.

Further, a side wall 8a of the weighing box main body 1 is provided with a viewing window 9 closed by a vertically long transparent plate so that the inside can be seen through, and a scale 9a is attached to one side thereof. Further, connecting members 12, 12 for attaching the tip of the arm 11 of the backhoe 10 to the upper portion of the side wall 8b of the weighing box body 1.
Is protruding.

The solidified material weighing box A used for soil improvement according to the present invention constructed as described above is one side wall 8 of the weighing box main body 1.
It is connected to the tip of the arm 11 of the backhoe 10 via the connecting members 12 and 12 protruding from the upper part of b.
Is transported to the construction site. Then, as shown in FIG. 2, the opening 2 on the bottom surface of the weighing box main body 1 is grounded at a predetermined position to the ground upper surface E to stand up so as to seal the inside of the weighing box main body 1. Next, in this state, the solidifying material is supplied from the supply pipe 5 to the cyclone 4. The solidified material discharged from the cyclone 4 accumulates on the ground upper surface E at the bottom of the weighing box body 1 as it is.

At this time, the solidified material that has flown up inside the weighing box body 1 does not scatter to the outside of the weighing box body 1 and is collected by the dust collecting device 7 through the dust collecting pipe 6. . The solidified material collected by the dust collector 7 is reused. Further, although the pressure inside the weighing box body 1 rises to some extent, the amount thereof is discharged to the outside through the dust collecting pipe 6.

The amount of the solidifying material accumulated on the ground upper surface E in the weighing box body 1 is determined by the vertically long sight window 9 and scale 9 provided on the side wall 8a.
Since it can be confirmed through a, the discharge amount can be accurately known and the adjustment can be easily performed. Therefore, when an appropriate amount of the solidifying material is accumulated, the backhoe 10 is moved to change the position of the ground upper surface E, and the solidifying material is sequentially discarded by an appropriate amount.
After that, the ground will be improved by a stirring and mixing device (not shown). Although the measuring box body 1 is formed by using a steel plate, it may be formed by a transparent synthetic resin if it is possible by design. In this way, the inside can be easily seen and the discharge amount of the solidifying material can be improved. Can get to know more accurately.

[0012]

As described above, the solidified material weighing box used for ground improvement according to the present invention is formed by opening only the bottom surface of the weighing box main body, and the bottom surface is grounded to the ground upper surface to be installed. Since the inside of the weighing box is sealed,
Even if the solidifying material is discharged into the main body of the weighing box, the solidifying material does not scatter to the outside, thereby eliminating the supply loss of the solidifying material and preventing dust pollution. Further, the solidified material accumulated in the weighing box body can be accurately known from the outside through the viewing window provided on the side wall of the weighing box body, so that it is possible to always work while confirming an appropriate amount of the solidified material. .

[Brief description of drawings]

FIG. 1 is a side view of a usage state in which a solidified material weighing box according to the present invention is attached to an arm tip of a backhoe.

FIG. 2 is an enlarged sectional view of a main part.

[Explanation of symbols]

 1 Measuring box body 2 Opening 4 Cyclone 7 Dust collector A Solidifying material measuring box

Claims (2)

[Claims] 1. A cyclone for forming a hollow weighing box main body that surrounds the periphery and opens only the bottom surface, and discharges a powdery solidifying material such as cement into the weighing box main body. A solidified material weighing box used for ground improvement, which is provided with a dust collector for collecting the solidified material rising in the weighing box main body. 2. The solidified material weighing box according to claim 1, wherein a peripheral window of the weighing box main body is provided with a viewing window closed by a transparent plate through which the inside can be seen.