JP2848555B2 - Core stock truck in core embedding equipment 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 a core stock bogie in an underground continuous wall core embedding apparatus for excavating an underground continuous wall core into a hole excavated by an excavator.

[0002]

2. Description of the Related Art When constructing a continuous underground wall, there is known a technique of embedding, for example, an H-shaped steel core material into 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 to put a long core material into a hole excavated by a crane, and it is a dangerous operation. In addition, there is a problem that a work space is required to have a height and a space for the work of the crane, and work cannot be performed in a narrow space.

[0004]

Accordingly, the applicant of the present invention has previously disclosed a method of embedding a core material into a hole excavated in a place with a small space above and around without using a crane. (Japanese Patent Application No. 6-239133).

[0005] According to this apparatus, a core stock truck is provided which moves together with the excavator, and a plurality of core materials are held upright on the cart, and is moved by a suspended monorail provided on the upper part of the stock truck. The core material is gripped by the hoist, and is inserted into the hole drilled by the excavator.

The present invention further improves the above-mentioned apparatus so that the core material transported by truck can be appropriately stocked on a core material stocking truck without requiring any manpower, thereby improving productivity,
It aims to further improve safety.

[0007]

According to the core stock trolley in the apparatus for embedding a core material for an underground continuous wall according to the present invention, an underground continuous wall in which a core material for an underground continuous wall is embedded in a hole excavated by an excavator. In the core stock truck in the core embedding device for use, the core stock truck moves together with the excavator, and the core stock truck is stretched and moved between a pair of chain conveyors that run endlessly horizontally. A plurality of rectangular holding plates provided at predetermined intervals in the traveling direction of the chain conveyor are provided, and a plurality of positioning members sandwiching the core material are provided at predetermined intervals in the longitudinal direction of the holding plate on the holding plates. The core stock truck has a core raising mechanism on one side, and the core raising mechanism includes a plurality of positioning members for preventing lateral displacement of the core corresponding to the positioning members of the holding plate. There are made up of the mounting frame core material is rotated to the upright position from a horizontal position to the rotational axis of the driven sprocket of the chain conveyor as axial.

Further, according to the present invention, the means for rotating the core placing gantry from the horizontal position to the upright position is a hydraulic cylinder.

[0009]

The core material for one day's work, for example, 25 core materials, is transported to the work place by a truck with a crane. As the core material, for example, an H-shaped steel is used.

Using a truck crane, a core material, for example, five core materials, is placed on a core material mounting base.

At this time, the leading end of the core material is sandwiched between positioning members provided on the holding plate of the chain conveyor, and the positioning member provided on the core material mounting base prevents lateral displacement of the core material. Then, an attachment for the lifting magnet is attached to the end of the core material.

The chain conveyor is driven until the holding plate is in a horizontal state, and at the same time, the hydraulic cylinder is operated in synchronization with the chain conveyor to erect the core mounting table while supporting the core.

When the core material stands upright, the core material mounting base is returned to the horizontal position. The five core materials are again placed on the core material mounting base, and are similarly erected. This operation is repeated, and a total of 25 core materials, that is, five front, rear, left and right, are stocked in the core stock truck.

[0014]

FIG. 1 shows the entire structure of a core material embedding device for an underground continuous wall. A low-head fully automatic triaxial pile excavator 2, a drill stock truck 3, a core stock truck 4 running on a rail 1 from the front. , A power cart 5 is provided.

The excavator 2 drills holes for embedding the core material for the underground continuous wall. A core material, for example, an H-shaped steel 10 having an attachment 9 for a lifting magnet attached to the top end thereof is held on the core material stock cart 4 in an upright state.

A hoist 8 that moves along the monorail 6 and has a lifting magnet 7 is provided. Lift the material 10 and move along the monorail 6,
It is embedded in the hole drilled by the excavator 2.

Next, an embodiment in which the core material 10 is stocked in the core stock truck 4 will be described. Core stock trolley 4
Is provided on one side with a core material raising mechanism generally indicated by 11.

The core stock truck 4 is hung and moved between a pair of chain conveyors 12 (one chain conveyor is shown in FIG. 2) which runs endlessly horizontally in FIG. 2 and FIG. A plurality of rectangular holding plates 15 provided at predetermined intervals in the running direction are provided, and a plurality of positioning members 16 sandwiching the core material 10 are provided on the holding plates 15 at predetermined intervals in the longitudinal direction of the holding plates 15. Is provided.

In the core raising mechanism 11, the positioning member 17 for preventing the core member 10 from laterally displacing is positioned on the positioning member 1 of the holding plate 15.
6, a core material mounting base 18 that is rotated from a horizontal position to an upright position with the rotation axis of the sprocket 13 on the driven side of the chain conveyor 12 as the axis.
It consists of As a means for rotating the core material mounting base 18 from the horizontal position to the upright position, a hydraulic cylinder 19 that operates in synchronization with the chain conveyor 12 is provided (FIG. 3), and 14 is a drive sprocket of the chain conveyor. It is.

Next, the operation will be described.
The core material 1 for one working day by the truck 20 equipped with
0, for example, 25 cores are transported to the work place (FIG. 1). As the core material, for example, an H-shaped steel is used.

Using the crane 21 of the truck 20, a core material, for example, five core materials 10, is placed on the core material mounting base 18 of the horizontal core material raising mechanism 11 (FIGS. 1 and 3). . At this time, the tip of the core material 10 is
And a positioning member 17 provided on a core material mounting base 18.
This prevents lateral displacement of the core material 10. Attachment 9 for lifting magnet is attached to the end of core material 10 (FIGS. 1 and 2).

The chain conveyor 12 is driven until the holding plate 15 is changed from the upright state to the horizontal state, and at the same time, the hydraulic cylinder 19 is actuated in synchronization with the chain conveyor 12 to support the core material mounting base 18 while supporting the core material 10. Stand upright (FIGS. 3 and 4).

When the core material 10 is upright, the core material mounting base 18
To the horizontal position (FIG. 5).

The five core members 10 are again mounted on the core member mounting base 18 and are similarly erected (FIG. 6). This is repeated, and when the last five are standing upright, the core placing gantry 18 is not returned to the horizontal position, but is kept upright. this is,
This is for the purpose of preventing the core member 10 from overturning and effectively utilizing the space (FIG. 7).

In this way, the core stock truck 4
A total of 25 cores, that is, five front / rear and left / right parts corresponding to the daily work, are held in an upright state.

The above operation is automatically performed by remote control together with the operation of embedding the core material into the hole drilled by the excavator.

[0027]

According to the present invention, the core material is simply placed on the core material mounting base by the truck crane, and thereafter, the core material is automatically held in the upright posture on the core material stock trolley, and the core material can be safely and securely held. You can stock efficiently.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the entire structure of a core material embedding device for an underground continuous wall.

FIG. 2 is a perspective view showing details of a core stock truck.

FIG. 3 is a side view of a main part for explaining a first step of the operation of the core material raising mechanism.

FIG. 4 is a side view of a main part for explaining a second step of the operation of the core raising mechanism.

FIG. 5 is a side view of a main part explaining a third step of the operation of the core raising mechanism.

FIG. 6 is a side view of a main part for explaining a fourth step of the operation of the core raising mechanism.

FIG. 7 is a side view of an essential part for explaining a fifth step of the operation of the core raising mechanism.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Rail 2 ... Excavator 3 ... Drill stock trolley 4 ... Core stock trolley 5 ... Power trolley 6 ... Monorail 7 ... Lifting magnet 8 ... Hoist 9. ··· Attachment 10 ··· Core material 11 ··· Core raising mechanism 12 ··· Chain conveyor 13 ··· Driven sprocket 14 ··· Drive sprocket 15 ··· Holding plate 16 ··· Positioning member 17 ... Positioning member 18 ... Core mounting table 19 ... Hydraulic cylinder 20 ... Truck 21 ... Crane

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) E02D 5/18-5/20 E02D 13/04

Claims (2)

(57) [Claims] A core stock truck in an underground continuous wall core embedding device for embedding an underground continuous wall core in a hole excavated by an excavator, wherein the core stock truck moves together with the excavator. The core stock truck is provided with a plurality of rectangular holding plates that are hung and moved between a pair of chain conveyors that run horizontally endlessly and that are provided at predetermined intervals in the running direction of the chain conveyor. The holding plate is provided with a plurality of positioning members for sandwiching the core material at predetermined intervals in the longitudinal direction of the holding plate, and the core stock truck has a core material raising mechanism on one side, and the core material raising mechanism is provided. A plurality of positioning members for preventing lateral displacement of the core material are provided in correspondence with the positioning members of the holding plate, and the rotation axis of the sprocket on the driven side of the chain conveyor is used as an axis from a horizontal position. A core stock truck in a core embedding device for an underground continuous wall, comprising a core mounting table rotated to an upright position. 2. The core stock truck in the underground continuous wall core embedding device according to claim 1, wherein the means for rotating the core mounting table from the horizontal position to the upright position is a hydraulic cylinder. .