JP2783316B2 - Core embedding device for underground continuous wall - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for embedding a core material for an underground continuous wall into an excavated hole.

[0002]

2. Description of the Related Art When constructing an underground continuous wall, there is known a technique in which a core material of, for example, H-section steel is embedded in a hole continuously excavated in the ground by an excavator using a crane.

[0003]

However, in the prior art using a crane, a skilled worker is required and a dangerous work is required to insert a long core material into a hole excavated by hanging the crane. .

[0004] Further, there is a problem that a work space is required to be high and a space required for the work of the crane, and work cannot be performed in a narrow space.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above problems, and provides a core material embedding device for an underground continuous wall that embeds a core material in a hole excavated in a place with a small space above and around without using a crane. It is an object.

[0006]

According to the present invention, there is provided an underground continuous wall core embedding apparatus for embedding an underground continuous wall core in an excavated hole, wherein a core stock carrier is provided adjacent to the excavator. The core stock truck has a holding means for detachably holding a plurality of core materials in a detachable manner, and a hoist having a hanging type monorail formed in a loop shape is provided on an upper portion of the stock cart, and the hoist is provided in the hoist. A gripping means for gripping the core material is provided, and the holding means is configured to arrange the core material in a square shape, and one row of the core material arranged in the square shape is configured to be directly below the monorail. .

Further, according to the present invention, the holding means comprises a chain conveyor and a positioning member arranged on the chain conveyor.

Further, according to the present invention, two hoists are provided on a suspended monorail, and the gripping means is constituted by a lifting magnet and an attachment engaged with the lifting magnet at an end of the core material. ing.

According to the present invention, the operation of the hoist and the lifting magnet is performed by remote control by radio, and the excavator is a low head fully automatic three-axis pile excavator.

[0010]

The present invention is configured as described above, and a plurality of core members are held upright on the stock truck on a core stock truck provided adjacent to the excavator, It is arranged squarely on the stock trolley. And, since the monorail of the hoist comes directly above the row of cores arranged in a square, the cores arranged in the row are sequentially gripped by the gripping means of the hoist and lifted upright. Since it is transported by the monorail and moves right above the hole drilled by the excavator, it can be embedded as it is.

When the embedding of one line of core material is completed, the chain conveyor is driven on the stock truck to move the next line of core material directly below the monorail, and the embedding operation can be continued. Work can be continued until the core material on the cart runs out.

Also, the core material and the like do not protrude above the monorail during the work, and the stock truck and the excavator are adjacent to each other, so that the work can be easily performed even in a narrow place, and is safe.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is an overall perspective view of a combination of an apparatus for embedding a core material for an underground continuous wall according to the present invention and a fully automatic 3-axis pile excavator according to Japanese Patent Application No. 6-5580 filed by the present applicant. For example, the core stock trolley 1 is connected to a low head fully automatic triaxial pile excavator 3 and a drill stock trolley 2 of the excavator on the same rail 4.

An inverted L-shaped bracket 5 is attached to the core stock truck 1, and a bracket 6 is similarly fixed to the drill stock truck 2, and the brackets 5, 6 are loop-shaped. Monorail 7 configured in
Is attached to the bottom of the bracket. Note that reference numeral 2
Reference numeral 4 denotes a power trolley.

The monorail 7 has a rail 7b outside the loop, and FIG. 2 shows the rear side of FIG.
The fully automatic triaxial pile excavator 3 is arranged just above the center of the drilled hole, and a rail 7a inside the loop is a row of core-arranged outlets 1a formed in the core stock truck 1. It is configured to be directly above. In addition, the code | symbol A has shown the excavation point, the code | symbol B has shown the hole which was excavated, the code | symbol C has shown the embedding point, and the code | symbol D has shown the core material which has already been embedded.

A first hoist 9a and a second hoist 9b are provided on the monorail 7, and a lifting magnet 10 is suspended from each of the hoists 9a and 9b.

FIG. 3 shows a main part of a holding means for arranging and holding the core material 8 provided on the floor portion of the core stock truck 1 in a rectangular shape in an upright state, and is provided on the core stock truck 1. The chain 1 of the chain conveyor is attached to the sprocket 12.
3 are engaged, a holding plate 14 is attached to the chain 13, and a plurality of (for example, five) positioning members 15 are fixed to the holding plate 14.

The H-shaped steel 8, which is the core material before being held upright, is conveyed by, for example, a truck (not shown) and inserted substantially horizontally into a positioning member 15 provided on a holding plate 14 at the end of the chain conveyor. The H-shaped steel is supported by a support member 16 which is rotatable coaxially with the sprocket 12 so that the H-shaped steel stands upright. The support member 16 can be turned from a horizontal position to an upright position by a standing means (not shown).

The operation will be described below.

FIG. 4 shows an embodiment of the H-shaped steel 8 arranged in a square shape on the core stock truck 1. In the figure, a monorail 7a is provided immediately above the fifth row. And first,
Is moved above the fifth row, E, and the lifting magnet 10 is lowered to come into contact with the attachment 20 provided at the end of the H-shaped steel 8, and then the electric current is applied to wind up the hoist to lift the H-shaped steel. Move on the monorail and bury it in the hole C drilled by the excavator. Then, during the operation, the second hoist 9b is operated to similarly operate the fifth row, D
, And move on the monorail 7 to stand by (see FIG. 2). By repeating the same operation, the fifth row of H-section steel 8
Is completed (see FIG. 5), the chain conveyor is driven, the holding plate 14 is moved by one row (see FIG. 6), and the same operation may be continued.

If the stock amount of the core stock truck 1 is set to the daily work amount, there is no replenishment on the way, which is convenient and safe.

In FIG. 2, the worker 22 has a wireless transmitter 23, and the hoists 9a, 9b and the lifting magnet 10 are configured to be operated via a receiver. It is convenient and safe because it can be remotely controlled while watching.

Therefore, even in the case where the space in the height direction and the surrounding area is narrow, the long H-shaped steel can be easily embedded in the hole excavated by the excavator.

[0025]

The present invention has the following advantages because it is configured as described above.

(1) The core material for the underground continuous wall can be embedded even if the space above and around is narrow. (2) It is safe because the movement of the core can be controlled remotely.
Two hoists can be operated efficiently and productivity is good. (3) It can be a base machine that automates the movement of the core material.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a core embedding apparatus and an excavator according to an embodiment of the present invention.

FIG. 2 is a perspective view showing the rear surface of FIG. 1;

FIG. 3 is a perspective view showing a main part of the core material holding means of FIG. 1;

FIG. 4 is a plan view showing an example of arrangement of core stock of a core stock truck.

FIG. 5 is a diagram showing a state after using a fifth column in FIG. 4;

FIG. 6 is a diagram showing a state where the first to fourth rows have been moved to the second to fifth rows.

FIG. 7 is an exploded perspective view of an H-section steel and an attachment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Core stock trolley 2 ... Drill stock trolley 3 ... Excavator 4 ... Rail 5, 6 ... Bracket 7 ... Monorail 8 ... Core (H-shaped steel) 9a, 9b ... Hoist 10 ... Lifting magnet 12 ... Sprocket 13 ... Chain DESCRIPTION OF SYMBOLS 14 ... Holding plate 15 ... Positioning member 16 ... Supporting member 20 ... Attachment 21 ... Attachment bolt 22 ... Worker 23 ... Wireless transmitter 24 ... Power cart

──────────────────────────────────────────────────続 き Continuation of front page (72) Inventor Masahiro Kamio 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. (56) References JP-A-4-238914 (JP, A) JP-A-Hei 5-202522 (JP, A) (58) Field surveyed (Int. Cl. ⁶ , DB name) E02D 5/18-5/20 E02D 13/04

Claims (6)

(57) [Claims] 1. An underground continuous wall core embedding device for embedding an underground continuous wall core material in an excavated hole, wherein a core material stock truck is provided adjacent to the excavator, and the core material stock truck includes a plurality of core stock trucks. Holding means for detachably holding the material upright, a hoist having a suspension type monorail formed in a loop shape at the upper part of the stock truck, and the hoist having gripping means for gripping the core material; The holding means is configured to arrange the core material in a square shape, and one row of the core material arranged in the square shape is arranged directly below the monorail, and the core material embedding for an underground continuous wall is characterized in that: apparatus. 2. The underground continuous wall core embedding device according to claim 1, wherein said holding means comprises a chain conveyor and a positioning member arranged on the chain conveyor. 3. The apparatus for embedding a core material for an underground continuous wall according to claim 1, wherein two hoists are provided on the suspended monorail. 4. The underground continuous wall core material embedding device according to claim 1, wherein said gripping means comprises a lifting magnet and an attachment which is engaged with the lifting magnet at an end of the core material. 5. An apparatus for embedding a core material for an underground continuous wall according to claim 1, wherein the operation of the hoist and the lifting magnet is performed by remote control by radio. 6. The underground continuous wall core embedding apparatus according to claim 1, wherein the excavator is a low head fully automatic triaxial pile excavator.