JP2002371544A - Method and device for kneading earth and solidifying material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method and a device for kneading earth and a solidifying material that can economically perform positive soil improvement work by providing an agitating device for kneading the earth and the solidifying material, inside a bucket, and agitating to mix the solidifying material corresponding to the quantity of the scooped-up earth and sand, and then discharging the kneaded material. SOLUTION: The weight of the bucket 1 is measured before scooping up the earth and sand with the bucket 1. Then the weight with the earth and sand scooped up with the bucket 1 is measured and recorded, and the weight of the bucket 1 is subtracted to obtain the weight of the scooped-up earth and sand. The solidifying material corresponding to the weight of the scooped-up earth and sand is added into the bucket 1 at a predetermined rate, and the earth and sand and the solidifying material are kneaded in the bucket and then discharged.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method in which a predetermined ratio of solidified material is supplied into a backhoe bucket to soft soil which has been scooped with a backhoe in order to solidify the soft soil. TECHNICAL FIELD The present invention relates to a method and an apparatus for kneading earth and sand with a solidified material, which solidifies soft earth and sand by discharging the soil.

[0002]

2. Description of the Related Art Conventionally, there has been a great deal of work to mix solidified materials with soft earth and sand dredged with a backhoe or the like to make effective use of the soft earth and sand. In the case of large-scale construction work, reduction of the work cost is a major issue.

[0003] Therefore, the conventional solidification technique of earth and sand includes a step of scooping and putting earth and sand into a mixer, adding a solidified material into the mixer, stirring and mixing, and then discharging. A combined flow is used.

[0004] Also, many inventions and ideas for ground improvement using a backhoe have been devised in the past. For example, in the invention relating to a ground improvement bucket disclosed in Japanese Utility Model Application Laid-Open No. 2-89041, an arm of a working machine is used. Side plates on both sides of a backhoe-type bucket that is swingably mounted and mixes a hardening agent into the soil, a plate-shaped portion provided with both ends fixed to these side plates, and having excavation claws; And a lattice portion connected to the side plate portion and fixed on both sides to the side plate portion, a stirrer is provided between the side plate portions, and a hydraulic motor for rotating the stirrer is attached to the bucket. .

According to the above-mentioned invention, even if the ground is not soft, the hardener can be mixed while the ground is excavated by the bucket, and the ground surface can be scraped by the bucket. It has the advantage of leveling without the need for a machine.

However, in the above-mentioned conventional bucket,
The hardening agent is mixed in the state that the bucket is inserted into the ground, and it is impossible to mix an appropriate ratio of hardening agent into the soil of the improved ground, and it is determined in advance as soft soil as in the present invention. It is not possible to add a certain percentage of the solidifying material for solidification treatment.

[0007]

SUMMARY OF THE INVENTION According to the present invention, a stirring blade for kneading earth and sand and a solidified material is provided in a bucket, and the solidified material corresponding to the amount of the scooped earth and sand is mixed and discharged. Accordingly, a method and apparatus for kneading earth and sand and a solidified material, which can perform a reliable solidification process and can save labor and economical work.

[0008]

SUMMARY OF THE INVENTION According to the present invention, the weight of a bucket is measured before scooping the earth and sand with a backhoe bucket, and the weight of the bucket when the earth and sand is scooped is measured and recorded. Calculate the weight of the scooped earth and sand, add a solidifying material according to the weight of the scooped earth and sand in a bucket at a predetermined ratio, and knead the sand and solidified material in the bucket. The present invention further comprises a method of measuring and recording the weight of the earth and sand that has been scooped by a bucket on a backhoe, and the solidification material according to the weight of the earth and sand measured above. A solidification material supply port for supplying the solidified material into the bucket, and a kneading device for mixing the soil and the solidified material with stirring blades for mixing the soil and the solidified material in the bucket. Kneading apparatus of material, except when measuring the weight of earth and sand scooped by a bucket of the backhoe consists are provided with a lashing device for lashing the bucket.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an apparatus applied to a method for kneading earth and sand and a solidified material according to the present invention will be described below with reference to the drawings. FIG.
2 is a main part side view of the bucket of FIG. 1, FIG. 3 is a main part plan view in the AA direction of the bucket of FIG. 2, and FIG. 4 is a main part side view of the bucket BB direction of FIG. 5 is a plan view of a main part of a hydraulic cylinder of the bucket securing device of FIG. 2, FIG. 6 is an enlarged plan view of the hydraulic motor for the stirring device of FIG. 2, and FIG.
It is a front sectional view in the CC direction showing the stirring device of FIG.

In this apparatus, a stirring device for driving a stirring blade 4 via a drive chain 8 by a hydraulic device 3 is provided in a bucket 1 shown in FIG. 2 for scooping the earth and sand of a backhoe 15 shown in FIG. In the bucket 1, a solidification material inlet 5 for supplying a solidification material such as cement 16 or mortar is provided.

Further, the weight of the bucket 1 is measured before scooping the earth and sand with the bucket 1, and the weight of the bucket 1 when the earth and sand is scooped is measured and recorded. The net weight of the scooped earth and sand is calculated by subtracting the weight, the amount of the solidified material such as cement 16 is calculated according to the weight of the scooped earth and sand at a predetermined ratio, and the indicator 17 for displaying the calculated amount is obtained. It is provided in the cab of the backhoe 15. After measuring and recording the weight of the soil when the bucket 1 is scooped, the bucket 1 is pressed against the lid 2 fixed to the arm of the backhoe so as to prevent the inside of the bucket 1 from spilling.

The cement 16 is kneaded in a mortar mixer 19 together with an appropriate amount of water W from a water tank 18 shown in FIG.
The amount of the solidified material corresponding to the weight of the scooped earth and sand from the solidified material injection port 5 is added into the bucket 1 through the bucket.

Next, by driving the stirring blades 4 in the bucket 1, the scooped earth and the added solidified material are stirred and mixed for a predetermined time, and then discharged from the bucket 1 as solidified material mixed earth and sand.

Thereafter, the earth and sand is discharged from the bucket 1 to set the state of the mixed earth and sand O remaining, and the next earth and sand is poured into the bucket 1.
The same procedure as above is repeated by scooping, measuring the weight, adding a solidifying material in an amount corresponding to the weight, stirring and mixing, and discharging.

The bucket 1 is supported by a bucket supporting shaft 12 via a load cell 7, and the weight of the bucket 1 is measured by the load cell 7. The stirring lid 2 can be opened and closed in a range indicated by an arrow R in FIG.
It is attached to the 5 side.

Further, a desk plate 11 is attached to the upper part of the back surface of the bucket 1, and a pair of lashing cylinders 9 arranged on the backhoe 15 side cause an arrow S in FIG.
With the lashing device 10 that goes in and out, the desk plate 11 of the bucket 1 is sandwiched from the left and right, and lashed,
As shown in FIGS. 3 and 4, the lashing device 10 removes the lashing device 10 while measuring the weight of the bucket 1 while keeping the bucket 1 substantially horizontal, and otherwise operates the lashing device 10 to operate the bucket 1. Is fixed. In addition,
In FIG. 1, reference numeral 22 denotes a starting motor, and reference numeral 23 denotes a remote control cable.

[0017]

According to the method and apparatus for kneading earth and sand and the solidified material of the present invention described above, since the apparatus for stirring and mixing earth and sand and the solidified material is incorporated in the bucket 1, a separate stirring and mixing device is provided. The equipment cost is further reduced, the number of operation management personnel for stirring and mixing can be reduced, and the occupied installation area of the entire apparatus can be reduced.

In addition, the backhoe driver can scoop up the earth and sand alone, measure the amount of treated earth and sand, measure, add, agitate and mix and discharge the solidified material to save labor.

Therefore, by incorporating the present invention, the construction cost can be reduced to about 2/3 or less as compared with the conventional construction method, and economical work can be performed.

[Brief description of the drawings]

FIG. 1 is an overall arrangement side view of an embodiment of an apparatus to which a method for kneading a solidified material of earth and sand according to the present invention is applied.

FIG. 2 is a side view of a main part of the bucket of FIG. 1;

FIG. 3 is a plan view of a principal part of the bucket of FIG. 2 in the AA direction.

FIG. 4 is a side view of a main part in a BB direction of FIG. 3;

FIG. 5 is a plan sectional view showing a main part of a hydraulic cylinder of the bucket securing device of FIG. 2;

FIG. 6 is an enlarged plan view of the hydraulic motor for the stirrer in FIG. 2;

FIG. 7 is a front sectional view of the stirrer shown in FIG. 2 taken along the line CC.

[Explanation of symbols]

 DESCRIPTION OF REFERENCE NUMERALS 1 bucket 4 stirring blade 5 solidification material supply port 10 lashing device 15 backhoe

Claims (3)

[Claims] 1. The scooping is performed by measuring the weight of the bucket before scooping the earth and sand with the backhoe bucket, measuring and recording the weight of the bucket when scooping the earth and sand, and reducing the weight. Determine the weight of the earth and sand, add a solidified material corresponding to the weight of the earth and sand that has been skimmed at a predetermined ratio into the bucket, knead the soil and the solidified material in the bucket, and discharge the solidified material and the solidified material. Kneading method. 2. A backhoe is provided with means for measuring and recording the weight of the earth and sand scooped by a bucket, and a solidified material supply port for supplying a solidified material corresponding to the measured weight of the earth and sand into the bucket. And a kneading device for soil and solidified material having stirring blades for mixing the soil and solidified material in the bucket. 3. The kneading apparatus of claim 2, further comprising a securing device for securing the bucket except when measuring the weight of the earth and sand removed from the bucket.