JP2596535Y2 - Excavator attitude control jig - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an excavator attitude control jig for controlling the attitude of an excavator in initial excavation of an underground continuous wall.

[0002]

2. Description of the Related Art Conventionally, initial excavation of an underground continuous wall is generally performed using an excavator. When excavating a drill hole using an excavator, for example, as shown in FIG. 5, a guide wall 3 for guiding an excavator 4 before opening the drill hole is installed around the opening of the drill hole 1. On this guide wall, a gantry 50 (excavator attitude control jig) for externally controlling the attitude of the excavator during the excavation work is assembled and fixed, and the excavation work is performed.

[0003] The gantry 50 is provided with an excavator 4 tilted during excavation work.
Since the jig controls the posture of the excavator by supporting the side surface of the excavator, the jig is required to have a capability of sufficiently supporting the inclined excavator. Here, the force received by the gantry 50 to support the excavator 4 moves from the gantry to the guide wall 3. For this reason, the gantry 50 itself must be strengthened, and the gantry must be firmly fixed to the guide wall 3.
Therefore , an anchor was provided on the guide wall and a gantry was installed.

[0004]

[Problem to be solved by the invention] However, the stand 50
Since the guide wall 3 has a structure for supporting the outer side surface of the excavator 4, it is inevitable that the size of the excavator 4 must be increased in order to support the excavator. In addition, there is a problem that providing the large gantry 50 itself with sufficient strength increases costs and makes handling difficult.

[0005] Further, after the gantry 50 is installed, it is difficult to adjust the distance between the gantry and the outer side surface of the excavator 4, and even if the gantry is enlarged, the excavator is always stably supported. In some cases, the effect was not obtained. Further, when fixing the gantry 50 to the guide wall 3, it is necessary to install an anchor, so that the work of installing and removing the gantry becomes large and there is a problem that the workability is reduced.

SUMMARY OF THE INVENTION The present invention solves such a problem, and is an excavator attitude control which is small and lightweight, can be easily attached and detached, and can constantly maintain the attitude of the excavator stably. It is intended to provide a jig for use.

[0007]

In order to achieve the above object, an excavator attitude control jig according to the present invention is provided in an excavation hole.
Between the outer side of the excavator to be inserted and the side wall of the guide wall
A gap adjusting plate interposed between the gap adjusting plate and the gap adjusting plate.
And a support for supporting the rate at the position.
The holding body is attached to the upper surface of the guide wall, and
A support member for supporting the gap adjusting plate,
Approaching the excavator inserted into the borehole or
And a frame that supports it so that it can move
It is.

[0008]

[Function] The present invention relates to the outer side of an excavator to be inserted into a borehole.
Between the surface and the side wall of the guide wall, the gap adjusting plate supported by the support has a structure interposed, so when the excavator tries to tilt, the side of the excavator,
It is supported by the gap adjusting plate. For this reason, during the excavation work, the posture of the excavator is always maintained in a stable state without tilting.

At this time, the gap adjusting plate is pressed against the side wall of the guide wall by the excavator, and the force received from the excavator is transmitted from the gap adjusting plate to the side wall of the guide wall. Therefore, since the force received from the excavator is not transmitted to the support, the support does not need to be firmly fixed to the guide wall or the ground. For this reason,
The anchor does not need to be fixed on a large scale. Also, the gap adjusting plate may be any size that can be interposed between the outer side surface of the excavator and the side wall of the guide wall,
A reduction in size and weight is achieved.

Further, the frame constituting the support is provided with a gap adjustment.
Insert the support member that supports the conditioning plate into the borehole.
To move in and out of the excavator
The outer wall of the excavator and the guide wall
The gap with the gap to be formed can be easily adjusted,
The milling machine can always be supported stably.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of an excavator attitude control jig according to the present invention will be described with reference to the drawings. In the excavation work site shown in FIGS. 1 to 4, a well-known guide wall 3 and the like are formed around the excavation hole 1 around the opening of the excavation hole 1 whose opening is substantially rectangular. In this embodiment, an excavator 4 having a substantially rectangular parallelepiped shape corresponding to the excavation hole 1 is used.

An excavator attitude control jig 10 is provided between the outer side surface of the excavator 4 inserted into the excavation hole 1 and the guide wall side end side surface 6 to support the outer side surface of the excavator. Eight sets of gap adjusting plates 13 and guide walls 3
Support 2 fixed on top and supporting gap adjusting plate
0.

As shown in FIG. 4, the gap adjusting plate 13 is fixed to the end 5 of the guide wall 3 of the shaped steel members 18A and 18B which are components of the support member 12 described later. A plurality of second gap adjusting plates 1 inserted between the gap adjusting plate 19A and the first gap adjusting plate and the end side surface 6 of the guide wall.
9B.

The first gap adjusting plate 19A is made of a plate-like member, and is fixed in a state of being suspended from the end of the excavation hole 1 of the shaped steel members 18A, 18B with respect to the end side surface 6 of the guide wall 3. And the second gap adjusting plate 1
It plays a role in preventing 9B from falling. The second gap adjusting plate 19B has a substantially T-shaped planar shape in which engaging portions 23A and 23B for engaging with the shaped steel members 18A and 18B are formed at both ends of the plate-shaped member. . The second gap adjusting plate 19B is provided with the first gap adjusting plate 19B.
A required number of sheets are inserted so as to completely fill a gap formed between the excavator 4 and the end side surface 6 of the guide wall 3, and a structure interposed between the outer side surface of the excavator 4 and the end side surface 6 of the guide wall 3. Become.

The support 20 includes a support member 12 for supporting the gap adjusting plate 13 from the back side of the surface of the gap adjusting plate 13 facing the excavator 4, and a frame 11 for fixing the support member. . As shown in FIG. 2, the support member 12 includes a total of eight sets of shaped steel members including one set (two pieces) of shaped steel members 18A and 18B having an L-shaped cross section for supporting the gap adjusting plate 13. And a long screw bolt 14 and nuts 15A and 15B for fixing these to the frame body 11.

The shaped steel members 18A and 18B are located on the guide wall 3 at positions corresponding to both ends of the edge (four sides) of the opening of the excavation hole 1 with one flange outer surface in contact with the guide wall. Are arranged perpendicularly to the plate surface of the gap adjusting plate 13. Shaped steel members 18A, 18B
The tip at which the first gap adjusting plate 19A is fixed and suspended extends from the end 5 of the guide wall 3 to the excavation hole 1A.
It is placed in a state protruding toward. Shaped steel member 18
The distance between A and the inside of the shaped steel member 18B is longer than the width of the second gap adjusting plate 19B and shorter than the width in which the engaging portions 23A and 23B are added. With the surface facing the end side surface 6 of the guide wall 3, it can be inserted between the shaped steel member 18A and the shaped steel member 18B. When the second gap adjusting plate 19B is inserted between the shaped steel member 18A and the shaped steel member 18B, the engaging portion 23A is engaged with the shaped steel member 18A, and the engaging portion 23A is engaged with the shaped steel member 18B. 23B is engaged to support the second gap adjusting plate.

One end of the long screw bolt 14 is welded to a corner (intersection) formed by the upper surface of the flange in contact with the upper surface of the guide wall 3 of the shaped steel members 18A, 18B and the other flange.・ It is fixed. The other end of the long screw bolt 14 can penetrate through a bolt hole opened in a flange perpendicular to the upper surface of the guide wall 3 of the frame 11. The long screw bolt 14 penetrating the bolt hole is provided with nuts 15A, 15A from both sides of the flange.
B is fixed to the frame 11. The long screw bolt 14
The portion of the through-hole that is able to advance and retreat in the horizontal direction toward the excavation hole 1 is adjusted by adjusting the fixing position of the long screw bolt, thereby protruding from the end 5 of the guide wall 3 of the shaped steel members 18A and 18B. Can be arbitrarily determined. Here, the length of the portion of the shaped steel members 18A, 18B protruding from the end 5 of the guide wall 3 is determined by the gap adjusting plate 1.
3 is an intervening region.

The frame member 11 is a connecting member 17 for connecting the four shaped steel members 16 having an L-shaped cross section to which the long screw bolts 14 fixed to the shaped steel members 18A and 18B are fixed by the guide wall 3. It is composed of Each of the shaped steel members 16 forms a substantially rectangular shape along the shape of the opening so as to surround the opening of the excavation hole 1 with one of the flange surfaces and the upper surface of the guide wall 3 in contact with each other. hand,
It is placed on the guide wall. A bolt hole through which the bolt 14 penetrates is formed in a flange perpendicular to the upper surface of the guide wall 3 of the shaped steel member 16. And
Insert the long screw bolt 14 through the bolt hole and tighten the nuts 15A, 1
By fixing at 5B, the shaped steel members 18A and 18B are supported vertically to the shaped steel member 16.

The longitudinal ends of the flange of the shaped steel member 16 which is in contact with the guide wall 3 are connected by a connecting wall by a connecting member 17. The connecting member 17 is provided with an elongated hole 17A. By moving the connecting position of the elongated hole in the longitudinal direction of the shaped steel member 16, the shaped steel member can be moved to some extent in the longitudinal direction. ing. Connecting members 17, Ru Tei is connected by a bolt 17B.

Next, a method of attaching the jig 10 for controlling the posture of the excavator according to the present embodiment and a specific operation will be described. As described above, first, the frame 11 is installed at a predetermined position on the guide wall 3. Next, the long screw bolt 14 is passed through a bolt hole formed in the flange of the frame 11.
At this time , the fixing position of the long screw bolt 14 depends on the gap formed between the outer side surface of the excavator 4 to be used and the end side surface 6 of the guide wall 3 so that the shaped steel members 18A and 18B are located on the side of the excavation hole 1. Determine to protrude by the required length. sand
KazuSatoshi, the outer side of the excavator 4 tried incline during drilling operations, the gap adjustment plate 13 so that it can support stable, adjusting the fixed position of the long threaded bolt 14.
Next, the second gap adjusting plate 19B is inserted into the gap formed by the first gap adjusting plate 19A and the end side surface 6 of the guide wall 3. At this time , the engaging portion 23A of the gap adjusting plate 19B is engaged with the shaped steel member 18A, and the engaging portion 23B is engaged with the shaped steel member 18B. The gap formed by the first gap adjusting plate 19A and the end side surface 6 of the guide wall 3 is completely filled by the second gap adjusting plate 19B. Next, in this state, the long screw bolt 14 is fixed to the frame 11 with nuts 15A and 15B.

[0021] The first gap and the side surface 6 of the clearance adjustment plate 19A and the guide wall 3 is formed, as a method of completely filling the second gap adjustment plate 19B, a second gap adjustment plate Is adjusted, or a plurality of second gap adjusting plates are prepared, or a combination of these is performed, but the final fine adjustment is performed using a second board having a thickness corresponding to the gap thickness left unfilled. This is performed by preparing a gap adjusting plate 2 and loading it.

In this way, the gap adjusting plate 13 is interposed between the outer side surface of the excavator 4 and the end side surface 6 of the guide wall 3. As described above, the excavator attitude control jig 10 for controlling the attitude of the excavator 4 can be easily disposed, and the gap between the outer side surface of the excavator and the end side surface 6 of the guide wall 3 can be provided. Accordingly, since the thickness of the gap adjusting plate 13 can be easily adjusted so as to be an optimum thickness, workability is extremely improved.

Further, the gap adjustment plate 13 is small and lightweight, with the handling is simple, it is a child of the low cost. Further, even when the gap between the outer side surface of the excavator and the end side surface 6 of the guide wall 3 is changed by using a different excavator, the thickness of the gap adjusting plate 13 is adjusted. And can be used for any purpose.

Next, excavation work is performed in this state. When the excavator 4 is inclined during the excavation work, the outer side surface of the excavator is supported by the gap adjusting plate 13. At this time , since the side surface of the excavator 4 is supported on all sides by the gap adjusting plate 13, it can be stably supported in any direction. For this reason, at the time of initial excavation, the excavator can be suppressed from rolling. Also, during the excavation work, the posture of the excavator 4 is maintained in a stable state without always tilting. At this time ,
The gap adjusting plate 13 is pressed against the end side surface 6 of the guide wall 3 by the excavator 4 and is supported on the end side surface 6. The force received from the excavator 4 is transmitted directly from the gap adjusting plate 13 to the end side surface 6 of the guide wall 3. It was although I, since the support 20 the force is not transmitted, it is not necessary to firmly fix the support to the guide wall 3. For this reason, it is not necessary to perform extensive fixing by the anchor.

In this embodiment, the jig 10 for controlling the posture of the excavator is provided on the guide wall 3.
Not limited to this, the excavator attitude control jig may be directly disposed on the ground 2. In this embodiment, the guide wall 3
The jig 10 for controlling the position of the excavator having the structure in which the support member 12 and the gap adjusting plate 13 are arranged on the four sides has been described. However, the present invention is not limited to this. The number of installations can be arbitrarily determined by adjusting the interval between the shape steel members 18A and 18B, the width of the gap adjusting plate 13, and the like as long as the position control of the excavator 1 is not hindered. it can.

In this embodiment, the support 20 is attached to the frame 1.
1 and the support member 12, but the invention is not limited thereto, and the support may have another structure as long as the support can support the gap adjusting plate 13. Further , in the present embodiment, the case where the drilling hole 1 whose opening is substantially rectangular is opened is described. However, the present invention is not limited to this, and the shape of the opening may be any drilling hole such as a circle or a polygon. The present invention can be applied to the case of opening.

[0027]

As described above , according to the present invention , the gap adjusting plate supported by the support is interposed between the outer side surface of the excavator and the side wall of the guide wall. Therefore, at the time of the initial excavation, the excavator is suppressed from rolling, and the posture of the excavator during the excavation work can be maintained in a stable state without always tilting. Further, since the support does not need to be firmly fixed to the guide wall or the ground, it is not necessary to perform a large-scale fixing method of the anchor member or the like. In addition , the clearance adjusting plate may be of a size that can be interposed between the outer side surface of the excavator and the side wall of the guide wall, and thus a reduction in size and weight is achieved. Further, the support is provided with a gap adjusting press.
A support member for supporting the rate and this support member to the excavator
Such as a frame that can move back and forth in the direction of approaching or separating
After the frame was installed, the frame and the excavator
The distance between the outside and the outside can be easily adjusted
Therefore, always keep the excavator in accordance with the external side position of the excavator.
Can be supported stably.

[Brief description of the drawings]

FIG. 1 is a vertical sectional view showing an excavation work site using the present invention.

FIG. 2 is an enlarged plan view of FIG.

FIG. 3 is a partially enlarged view of FIG. 1;

FIG. 4 is a perspective view of FIG. 3;

FIG. 5 is a sectional view showing an excavation work site using a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Drilling hole 3 Guide wall 4 Excavator 10 Excavator attitude control jig 11 Frame 12 Support member 13 Gap adjusting plate 20 Support

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-U 4-37632 (JP, U) JP-A 63-2511 (JP, Y2) (58) Fields investigated (Int. Cl. ⁶ , DB name) E02F 5/02 E02D 13/04 E02D 5/20 102

Claims (1)

(57) [Scope of request for utility model registration] An outer side surface of an excavator to be inserted into a borehole;
A gap adjustment press interposed between the guide wall and the side wall
Support the gap adjustment plate at the position described above.
And a support attached to an upper surface of the guide wall.
A support member for supporting the gap adjusting plate,
Connecting the supporting member of the excavator inserted into the excavation hole.
From the frame that supports it back and forth in the direction of approaching or separating
An excavator attitude control jig characterized by being constituted .