JPS6119787B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention makes it possible to extract only the poles that corrode over time from time to time with respect to the foundations of signage poles erected on roads or on road shoulders, so that the foundations can be used repeatedly, and for this purpose, the pole foundations can be partially removed. This invention allows it to be permanently strengthened and maintained.

Each member used in the present invention will now be described in detail with reference to the drawings.

As shown in Figs. 1 to 4, four arc-shaped plates are formed by bending a flat plate having a predetermined length and width to form an arcuate surface 1, and by bending each end thereof to form a resistance surface 2. These four arc-shaped plates were integrally connected to each other to form a perfectly circular cylinder A.

Next, Fig. 5 shows a pouring earth removal pipe 3, which has a length that takes into account the underground burial depth of the marker pole and operational convenience, and is loosely placed within the circular arc surface 1 of the cylinder A. It is based on a hollow pipe with an outer diameter that can be passed through, and a collar 4 is fixed to the part that can be slightly lowered from the upper side of the length, and the impact receiving plate 5 is inserted by cutting both sides of the center line of the length at the upper side. A handle insertion hole 7 is formed in the impact receiving plate 5 by penetrating the pouring soil removal pipe 3 and the impact receiving plate 5.
In addition, pipe holes 6 are drilled in each of the poured earth removal pipes 3.

As shown in the side view of FIG. 6 and the plan view of FIG. 7, when the above-mentioned earth removal pipe 3 is inserted into the cylindrical body A, the collar 4 comes into contact with the upper side of the cylindrical body A to stop the engagement.

Next, what is shown in FIGS. 8 and 9 shows a reinforcing bar network B corresponding to the underground implantation depth of the marker pole, and as shown in the figure, two U-shaped reinforcing bars of a predetermined length are provided, These two reinforcing bars are constructed by cross-connecting their bottom parts 9 in a cross shape, and the upper ends are each bent outward by a predetermined length to form a locking part 10.
In addition, a circular auxiliary reinforcement 8' is fixedly integrated into the substantially central portion of the inside of the reinforcing bar network B.

Incidentally, FIG. 10 shows a screw ejector equipped with a plurality of screw blades.

This concludes the explanation of each member, and the method for constructing the marker pole foundation constituting the present invention will be explained below.

As shown in FIG. 11, the present invention first excavates a small amount of construction area to an area commensurate with the planar area of the cylindrical body A, then sets the cylindrical body A on the excavated ground, and inserts the pouring earth removal pipe 3 into it. Then, as shown in Fig. 12, when the upper side of the impact receiving plate 5 is applied with a hammer or the like, the soil removal pipe 3 stores all the opposing soil inside itself. Compared to the usual pipe driving method in which the tip is closed and the pipe is driven while pressing and removing opposing soil, the driving resistance is significantly reduced and easy installation is possible.

The flange 4 of the poured soil removal pipe 3 that advances in this way eventually hits the upper side of the cylindrical body A, and as the pouring continues, the flange 4 presses the cylindrical body A as it advances, and finally the cylindrical The upper side of the body A reaches the excavated ground and the pouring is completed. At this point, the handle 11 is inserted into the handle insertion hole 7 and the pipe hole 6 as shown in FIG. 3 to the left and right several times, the poured earth removal pipe 3 that protrudes from the lower side of the cylinder A and is in close contact with the surrounding soil will be released from the close contact with the surrounding soil and can be easily pulled out. ,
When this is extracted, a cavity 12 corresponding to the volume of the earth removal pipe 3 is automatically created as shown in FIG. 14.

In this case, during the pouring process, the soil that has entered the small space between the pouring earth removal pipe 3 and the cylinder body A is cleaned as much as possible, and the soil that can fall into the cavity 12 at that time and the soil quality are cleaned. Depending on the soil, the soil that partially collapsed and remained in the cavity 12 when the poured earth removal pipe was pulled out may be removed from the first pipe.
The first step was to remove the earth using the screw earth remover shown in Figure 0.
As shown in Fig. 5, the reinforcing bar net B according to Figs. 8 and 9 is connected to the cylinder A.
and a locking portion 10 at the upper end passing through the cavity 12.
is fixedly fixed to the upper end of the circular arc surface 1 of the cylinder A.

Next, as shown in FIG. 16, the present invention inserts a pull-out pole 14 having the same outer diameter as the pole to be planted in the future into the cylinder A and the cavity, and places it on the reinforcing bar bottom 9.
A special cement solution is mixed with water and has approximately the same fluidity as ordinary water, but the entire amount solidifies and hardens after several minutes after mixing. 12, the cylinder A, and the excavated area while maintaining the pull-out pole 14 in a vertical position, the cement solution begins to congeal and harden, forming a hardened cement body 13 holding the reinforcing bars 8 in the cavity 12. A reinforced concrete body was created, and the interior of the cylinder A became a strong concrete body surrounded by the cylinder A, and the hardened cement body 13 was also integrated into the excavated area.
It depends on this to maintain its strength.

However, the cement hardened body 13 is actually a pseudo-hardened body at that point, and although it hardens to a considerable degree, it takes several days to reach the hardening strength of full-fledged concrete, and the water content is removed. Since this occurs after an appropriate amount has been dispersed, if the pull-out pole 14 is rotated using the pole handle 15 until approximately one hour has elapsed after setting and hardening, the sliding surface between the hardened cement 13 and the pull-out pole 14 will be affected. The contained moisture is concentrated and easily rotated, and can be easily extracted. When the extraction pole 14 is extracted at this point, a pole extraction hole 16 as shown in FIG. 17 is created, and as time passes, It is to be completely cured in this state, and a marker pole 17 is now established as shown in FIG. 18.

In addition, in the construction order of the above means, the original purpose can be fully achieved even if the pull-out pole 14 is implanted after the cement solution is injected and filled into the cavity 12 and during the flow period before the cement solution starts to set. Therefore, such measures are permissible for convenience.

According to the present invention, the gist and effect of the present invention as described above is that according to the present invention, the sign poles planted on the ground surface can be pulled out and removed at any time as necessary, or the foundations can be left as they are and only the sign poles are new. It can be installed in place of other signs.

Signage poles erected on the ground surface are more susceptible to oxidation corrosion than their underground foundations, and are damaged by contact with automobiles, etc., so they must be reinstalled from time to time.

However, all conventional construction methods involve excavating underground to a depth commensurate with the embedment depth of the pole and to a size determined by soil pressure calculations, filling the excavation with ready-mixed concrete, and fixing the pole in place. The pole and concrete are completely integrated and cannot be separated, making it uneconomical to replace the pole by creating a new foundation even though the foundation is still in a usable condition. The gender is pointed out.

In contrast, in the present invention, only the pole can be replaced at any time, but this poses a problem with the hardened cement body 13 that is formed to protrude from the lower part of the cylinder A.

That is, the hardened cement body 13 can be strengthened with the pole as a core only if it is hardened integrally with the pole, but the hardened cement body 13 according to the present invention is not integrated with the pole, but is simply a long piece that is in close contact with the pole. Therefore, the hardened cement body 13 has only the strength as a single unit, and in this state it can be called a thick cement pipe, and it is impossible to hide some concerns about its strength.

Therefore, in the present invention, this is strengthened by reinforcing bars 8 to have the strength necessary for producing reinforced concrete.

There is also a concern that the poles that are in close contact with each other may rotate independently and freely regardless of the foundation due to wind pressure or artificial mischief, but this may occur at the upper side of the cylinder A or at the bottom of the cylinder. The pole can be replaced by inserting a bolt into the corresponding pole position in the excavated area on the upper side of body A, or by attaching a band etc. that is integrated with the pole and hardening it with cement hardening body 13. Sometimes, this part near the ground surface can be easily extracted with a "chisel" and is long enough to collapse, and a new pole can be inserted into it and only that part can be hardened with cement, which is sufficient for the purpose of use. It is something that can be achieved.

[Brief explanation of the drawing]

Fig. 1 is a plan view of the arc-shaped plate, Fig. 2 is a side view of the same as above, Fig. 3 is a plan view of cylindrical body A, Fig. 4 is a side view of the same as above, Fig. 5 is a side view of the earth removal pipe 3. Figure 6 is a side view showing the engaged state of the cylindrical body A and the earth-dumping pipe 3, Figure 7 is a plan view of the same as above, Figure 8 is a plan view of the reinforcing bar net B, and Figure 9 is a side view of the same. 10 are side views of the screw earth remover. Figures 11 to 1
FIG. 8 is a side view showing the construction state of the present invention. 1...Circular surface, 2...Resistance surface, 3...Pouring soil removal pipe, 4...Brim, 5...Bullet receiving plate, 6...Pipe hole, 7...Handle insertion hole, 8... Rebar, 8'
... Auxiliary reinforcement, 10 ... Locking part, 11 ... Handle, 12 ... Cavity, 13 ... Cement hardened body, 1
4... Pull-out pole, 15... Pole handle, 1
6... Pole extraction hole, 17... Marker pole, A...
...Cylinder, B...Rebar net.

Claims (1)

[Claims] 1. When constructing the foundation of the marker pole, reinforcing bar net B is inserted into the cylinder A and the cavity 12 created in the lower part of the cylinder A, and is engaged with the cylinder A, A pull-out pole 14 is inserted into the body A and cement solution is injected to fill the cavity 12, the cylinder A, and the excavated area, or the cavity 1 is
2. After the cylinder A and the excavated area are injected and filled with cement solution, the pull-out pole 14 is inserted and established, and the vertical state of the pull-out pole 14 is checked and maintained while the cement solution is solidified and hardened to harden the reinforcing cement. After a predetermined period of time, the pull-out pole 14 is pulled out to form a pole pull-out hole 16, and the hardened cement body 1 extends downward from the cylindrical body A.
3 has semi-permanent strength, and a marker pole 17 is established in the pole extraction hole 16.