JP3281969B2 - How to set up a boring rod - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of installing a boring rod in a tower of a boring machine when excavating a hot spring or the like.

[0002]

2. Description of the Related Art Conventionally, a boring rod is installed by connecting a hoist wire of a boring machine to a lifting side of the boring rod and connecting a staying rope for preventing horizontal runout to a lower end side.

[0003]

Most of the above-mentioned prevention of lateral runout by the stay rope is carried out by a worker manually supporting the stay rope, and there is no problem in particular when the boring rod is small and short. As the caliber and length increase and the weight increases, there is a limit to the support by human power. There was also a problem.

The present invention has been conceived in view of the above circumstances, and an object thereof is to employ a simple installation jig to ensure that the boring rod sways in the installation process by mechanical means without using human power. Another object of the present invention is to provide a new method of installing a boring rod that can be prevented.

[0005]

SUMMARY OF THE INVENTION According to the present invention, a tension winch installed near a boring machine, a hook-shaped lower jig and a cylindrical upper jig are connected in series by a wire. Using the length of the mounting jig,
The lower jig is locked to the lower end of the boring rod, and the upper jig is fitted on the upper portion of the rod, and the built-in jig is attached to the side of the boring rod. On the other hand, the wire of the tensioning winch is connected to the lower jig while the hoist wire is being tensioned through the jig by the tensioning winch, and the boring rod is lifted by the winch on the boring machine side, thereby boring. It is built in a machine tower.

[0006]

[Operation] In the above method, the lower jig and the upper jig support the lower and upper portions of the boring rod.
The boring rod is suspended by a series of wires stretched in parallel on the sides, and there is no room for the hoist wire to sway due to the tension of the hoist wire by the tensioning winch. Shake is prevented.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the drawings, reference numeral 1 denotes a boring rod, 2 denotes a mounting jig of a required length to be attached to a side of the boring rod 1, and 3 denotes a boring machine. 33 are provided.

Reference numeral 4 denotes a tension winch, which is installed on the ground near the boring machine 3 facing the tower 32, and a ground between the boring machine 3 and the tension winch 4 is a boring rod storage space 5. An H-steel gantry 41 and a pile 42 are used for installing the tension winch 4.

As shown in FIGS. 2 and 3, the mounting jig 2 is formed by connecting a hook-shaped lower jig 21 and a cylindrical upper jig 22 in series with a wire 23. Become. The connection by the wire 23 is performed using a shackle 24 so as to be individually disassembled.

A member 21a for connecting a wire 43 from the tensioning winch 4 via the shackle 6 protrudes from the back of the main body of the lower jig 21, and a connection hole 21b for the shackle 24 is formed at an end of the main body. Has been drilled.

As shown in detail in FIG. 4 and subsequent figures, the upper jig 22 comprises a pair of half-cylinders 22a, 22a which are openably and closably mounted.
Are provided at two upper and lower locations on one of the edges that are in contact with each other.
b and 22c are provided alternately, and the shaft hole 22d of the bearing plate located on the upper side during lifting is formed in a square hole, and the shaft hole 22e of the bearing plate located on the lower side is formed in a round hole although omitted in the drawing. It is.

A round rod connecting rod 22g having an outer end formed into a square axis is inserted into the shaft hole 22d of the upper bearing plate, and a round rod connecting rod 22h is inserted into the shaft hole 22e of the lower bearing plate. Have been
Both of them are integrally connected by a connecting member of a pair of pins 22i provided at the inner end and an opening / closing lever 22j. In addition, connecting rings 22g are provided at outer ends of the connecting rods 22g and 22h.
The wire 23 is connected to the connection ring 22k via the shackle 24, and the hoist wire 34 of the boring machine 3 is connected to the connection ring 22n via the shackle 6.

In such an upper jig 22, as shown in FIGS. 4 and 5, when the angular axis of the connecting rod 22g is settled in the shaft hole 22d, a pair of bearings centered on the connecting rod 22g are provided. The rotation of the plate 22b is prevented, and the half cylinder 22
a and 22a are not closed and opened, but when the angular axis is moved outward by the axial movement and the round bar portion is accommodated in the shaft hole 22d, as shown in FIG. Become open.

The insertion of the round bar portion into the shaft hole 22d is performed by pulling out one of the pins 22i, cutting off the edges of both connecting rods 22g and 22h by the open / close lever 22j, and moving the connecting rod 22g outward. Easy to do.

To set up the boring rod 1 using the setting jig 2, the hook to the lower end of the boring rod of the lower jig 21 is preceded and the boring rod 1 is set to the side of the boring rod of the upper jig 22. There are both cases of preceding the fitting. In the case of a boring rod made of different diameter pipes, it is difficult to fit the upper jig 22 from the rod end, so the hook of the lower jig 21 precedes and then the half cylinders 22a, 22
With 2a opened, it is fitted to the boring rod 1 from the side, and then closed and held.

When the mounting jig 2 is completed, the hoist wire 34 is connected to the upper jig 22 and the tension wire 43 is connected to the lower jig 21. As a result, the hoist wire 34 and the wire 43 are integrally connected via the wire 23 of the mounting jig 2, and the boring rod 1 is in a state of being suspended by a wire stretched parallel to the side. Become.

In this state, when the hoist wire 34 is tensioned by the tensioning winch 4 and the boring rod 1 is lifted by the winch 33 on the boring machine side, the boring rod 1 laid on the ground is shown in FIG.
As shown in (2), the aircraft takes off diagonally by the support of the lower and upper portions. Further, even after takeoff, the boring rod 1 is supported by the lower jig 21 hooked to the lower end, so that the boring rod 1 does not oscillate and does not fall off from the mounting jig 2.

Therefore, if the boring rod 1 is lifted as it is, the upper end of the boring rod 1 will reach the lower side of the hoist 31. When the lifting is completed, the tension of the wire 43 by the tensioning winch 4 is gradually reduced, and the lower end of the boring rod 1 approaches the tower 32, and changes its posture naturally, as indicated by a chain line at the end. Supported vertically.

As described above, the boring rod 1 is
When it is positioned vertically along, the operation shifts to the work of building into the tower 32, and the work is completed by removing the building jig 2. If it is necessary to release the boring rod 1 by biting a screw or the like during the connection between the boring rod 1 and the existing rod, the connecting rods 22g and 22h are cut off to form the connecting rod 22.
g is moved outward, and the square shaft is pushed out from the shaft hole 22d to be replaced with a round bar portion. Thereby, the upper jig 22 opens as shown in FIG. 6 to open the boring rod 1.

[0020]

As described above, according to the present invention, the required length of the tension winch installed on the ground near the boring machine, the hook-shaped lower jig and the cylindrical upper jig connected in series by a wire. By using the jig of the building, the lower jig and the upper jig of the jig support the lower end and the upper part of the boring rod, and the hoist wire connected to the upper jig, Since the hoist wire is lifted while being tensioned by the tensioning winch and the wire connected to the lower jig, there is no room for the hoist wire to swing, and the boring rod does not largely swing. Therefore,
There is no operational danger due to the lateral swing, and safe work can be performed.

Further, since the lower end of the boring rod is supported by the hook, the upper part of the rod can be supported by an upper jig, so that the mounting jig can be easily attached to and detached from the boring rod. Since work can be performed skillfully even in a place where the size of the site is limited, the construction work time can be shortened.

[Brief description of the drawings]

FIG. 1 is a schematic explanatory view of one embodiment of a method for installing a boring rod according to the present invention.

FIG. 2 is a partial longitudinal side view of a boring rod with a mounting jig attached.

FIG. 3 is an exploded perspective view of the mounting jig.

FIG. 4 is a partial longitudinal side view of an upper jig.

FIG. 5 is a sectional view taken along line AA of FIG. 4;

FIG. 6 is a diagram showing the same open state.

[Explanation of symbols]

 Reference Signs List 1 boring rod 2 construction jig 3 boring machine 4 tension winch 21 lower jig 22 upper jig 23 wire 31 hoist 32 turret 33 winch 34 hoist wire 43 tension wire

Claims (1)

(57) [Claims] 1. A tensioning winch installed on the ground in the vicinity of a boring machine, and a mounting jig of a required length in which a hook-shaped lower jig and a cylindrical upper jig are connected in series by a wire. Using, the lower jig is locked to the lower end of the boring rod, and the upper jig is fitted to the upper part of the rod, and the erection jig is attached to the side of the boring rod, and then the hoist wire of the boring machine is used. While connected to the upper jig, the wire of the above-mentioned tension winch is connected to the lower jig, and the hoist wire is raised by the tension winch and the boring rod is lifted by the winch on the boring machine side while being tensioned through the jig. A method of installing a boring rod, wherein the method is built in a turret of a boring machine.