JPS59141635A - Steel foundation body - Google Patents

Abstract

PURPOSE:To facilitate the fabrication of a foundation body as well as to strengthen the foundation body by providing a foundation body consisting of the first split body having a clip groove and an upward claw, the second split body having a clip groove and a through hole, and clips. CONSTITUTION:The first split body 1 consists of a support cylinder-shaped portion 3, a joint portion 5 with clip grooves 4 and upwardly directed claws 7, and resistance plates 6, and the second split body 2 consists of a support cylinder- shaped portion 3', a joint portion 5' with clip grooves 4' and through holes 8, and resistance plates 6'. The first split body 1 and the second split body 2 are coupled by the claws 7 and claw receivers 9 at the upper ends of the through holes 8, and clip materials 11 are coupled with the clip grooves 4 and 4'. The soil discharge tube 26 of a tool 25 is inserted into a support cylinder formed by the support cylinder-shaped portions 3 and 3', and the tool 25 is struck. In this case, the loosening and coming-out of the clip materials from the clip grooves 4 and 4' can be avoided because even the upper end of the clip materials 11 is pushed by a collar 28 provided to the tool 25.

Description

[Detailed description of the invention]

The present invention relates to an improvement in a steel foundation that is driven into the ground and installed in order to erect relatively small diameter steel pipes for displaying traffic signs, road signs, etc. In the past, when constructing small-diameter steel pipes (hereinafter referred to as signposts) for displaying the various signs mentioned above, the underground part of the signpost 15 was dug deep and concrete was poured directly into the foundation as shown in Figure 1. The common method was to create 16 holes, but a lot of time and effort was spent on digging holes, which was a major impediment to work efficiency. For this reason, in recent years there has been a gradual increase in demand for steel foundations that can be constructed by simple driving operations without the need for troublesome drilling work. Typical examples of this type of steel base are medium-sized X shown in FIG. 2 and Otsu-shaped Y shown in FIG. 3. Medium-sized X is a support tube 17. having an inner diameter that is larger in plan than the outer diameter of the signpost to be erected. It has an extremely simple structure in which a plurality of resistor plates 18 are arranged radially around the periphery at equal intervals. The O-type Y has a first resistance plate body 19 in which three resistance plates 21 are formed in a T-shaped cross section by two steel plates of different shapes, a support tube 22 into which a sign post is inserted, and its tall part. A second resistance plate body 2o to which another resistance plate 21' is fixed, and by fitting the guide groove 23 and the bent edge 24 provided on each of them, the cross section resembles that of the medium size X. combined into shapes. These steel base bodies medium size X and Otsu type Y are driven using a tool 25 shown in FIG. 26 in the figure is the support tube 1 of the medium-sized X and Otsu-shaped Y, respectively.
722 is a discharge pipe that can be loosely inserted into the support tube 1722, and the length from the open end cut 27 to the flange-shaped collar 28 provided at the rear is comparable to the length of the support tube 1722, and the length of the collar 28 is comparable to the length of the support tube 1722.
．． A handle 29 is fixed to the rear of the tool 25 so as to pass through the tool 25, and further behind the handle 29, that is, at the rear end of the tool 25, an attack lug 30 for hitting with a hammer. is formed. To explain the construction state of steel foundation medium molding and Otsu-type Y performed using this tool 25, first, in the case of medium-sized X, the supporting cylinder of medium-sized X is placed in the erection position as shown in Fig. 1
The process begins by inserting the earth removal pipe 26 of the tool 25 into the chamber 7 and hitting the attack protrusion 3o with a hammer. The hammered tool 25 uses its collar 28 to support the support tube 17 and the resistance plate 18 expanding outward from the support tube 17. While holding down the upper end of the root part, the tip is driven together with this medium size X to the point shown in Figure 6. Next, handle 29. When the tool 25 is pulled out by twisting it from side to side, the soil that entered through the tip cut 27 of the earth removal pipe 26 during the driving process will be moderately compressed and will not stick to the inner wall of the earth earth removal pipe 26, and will not be supported. Soil is removed from the inside of the cylinder 17 to create a cavity 31 as shown in FIG. Insert the marker post 15' into the created cavity 31, fill the gap in the cavity 31 with rapidly hardening cement 32 (and harden it in a short time), then connect the marker post 15' and this medium-sized
Then, the foundation is integrated and the erection work is completed as shown in Figure 8. 1 for the outer diameter of the marker post 15'. A cavity 32 created within the support tube 17. Since the planned diameter is large, even if the middle die of the steel foundation is installed slightly tilted during the driving process, the 15 sign posts can be placed vertically to solidify the gap in the cavity 31. 5. Dry the sign post 15' as shown in Figure 9. can be built. In the case of type Otsu Y, the first resistance plate body 19. and second resistor plate 2
04 are assembled in advance as shown in FIG. 10, and then the aforementioned tools 25. In addition to the method of inserting and driving in the same manner as the above-mentioned medium-sized

[-] After ladle the VC first resistor plate 19.
While fitting the bent edge 24 into the guide groove 23 provided on the inside of the plate, tap the upper end of the resistance plate joint 34 of the second resistance plate body 20, and press it in the ground as shown in Fig. 10. Since it is possible to perform split driving in which the parts are tied together, it is very convenient when constructing in imported soil that is mixed with rubble. Even when performing such split driving, the tool 25 is attached to the support tube 22. It plays an important role in removing soil inside. If the soil removal pipe 26 is driven into the support tube 22 of this Otsu-shaped Y, which is assembled and installed underground as shown in Figure 10, and then pulled out, the soil inside the support tube 22 will be removed and a cavity will be created. After that, all you have to do is erect a marker post in the same way as for the medium-sized X mentioned above. In this way, according to the steel base body, medium-sized X1. Otsu type Y. Since the troublesome work of digging holes was omitted from the construction process, the time required to erect the signposts was significantly shortened, and at the same time, the burden of labor was also reduced. In addition, regarding the stability of the signpost built with a steel foundation against external pressure caused by wind, etc., it is important to note that the stability of the signpost erected with a steel foundation extends to the outside of the support tube 1722 of the medium-sized X and Otsu-type Y. Since the formed plurality of resistance plates 182], 2]' grip the surrounding soil over a wide range with their flat plate surfaces, it becomes a solid foundation that is more than comparable to the conventional construction method. There is nothing to worry about since you will get it. As explained above, steel foundations have made it possible to construct signposts with stability that is comparable to or better than conventional construction methods at an overwhelmingly low work cost. The body also contained major problems that could not be solved with low work costs. The problem common to the medium size X, and O/4 type Y is that manufacturing costs and transportation and management costs are excessive. In the case of medium size One member 37 is press-formed, a plurality of tubes are assembled as shown in the 13th section, and each plate 36 is welded to each other to make one product. In this manufacturing method, the two processes of pressing and welding are essential, so even if the product structure is simple, the manufacturing cost is by no means cheap. Cos)
is a major problem. This is because the plurality of radially extending resistance plates 18 become an obstacle, and the number that can be stored in one space is extremely limited. In the case of 4-type Y, there is a structure for fitting that is not found in medium-size X, and the manufacturing cost is even higher due to the machining. Plate 2
Since 0 is a completely different shape, packing work etc. is not easy.
Moreover, the amount that can be stored in one space is still limited. The present invention was proposed in order to solve the above-mentioned problems remaining in the steel base body, and the implementation state thereof will be explained below with reference to the drawings. The present invention consists of a first divided body 1 and a second divided body 2 having substantially symmetrical shapes as shown in FIG. are joined as in No. 15 +w+, and claws 7. are formed on each. After engaging with the claw receiver 9 and assembling them together, the clamped state is further strengthened by the clip holder 11 shown in FIG. 14 and ready for use. The first divided body and the second divided body, shown at 12 in Fig. 14, are made by dividing the support tube in half vertically, and forming a support tube forming part in the shape of 3. The flat plate surfaces of the two face in the same direction, and a clip groove 4 having a width comparable to the plate thickness of the clip A'11 (to be described later) is cut at the upper end to form a joint portion 5.5' of appropriate size. A resistance plate 66' is formed at each side end by being bent outward at a planned angle. -1 = In order to combine the first divided body 1 and the F2 divided body 2, a plurality of upwardly directed claws 7 are extruded on the joint part 5 of the first divided body 1 on the center line of the vertical shell [-1] It sticks out to the side. On the other hand, on the longitudinal centerline of the joint portion 5' of the second divided body 2, through holes 8 corresponding to the size of the pawls 7 are bored below the positions of the pawls 7 of the first divided body 1 by the planned amount. 1st
When joining the divided body 1 and the second divided body 2 as shown in FIG. 15, first trace the claws 7 as shown in FIG. After joining J7, move the second divided body 2 downward and pass it through as shown in No. 17- [1. 10 to lock and combine them into one piece. At this time, the upper end surfaces of the first divided body 1 and the second divided body 2, respectively, are completely aligned with each other. In order to strengthen and ensure the combined state of the parts, as shown in FIG. and a retaining groove 13 with a width comparable to the thickness of the joined plate 55' below.
The clip material 1 which has been cut and twisted is inserted into the clip grooves 44' of the first divided body 1 and the second divided body 2, which are tied together as shown in FIG. 17 and whose positions match. The present invention, which is put to use after being combined in this way,
In the same way as inserting the steel foundations of the medium-sized However, as shown in FIG. 18, the collar 28 provided on the tool 25 is holding down the upper end of the clip material 1 along with the upper ends of the support cylinder forming part 33' and the joint part 55'. The clip will not come out of the fitting part due to the impact inertia when it is struck, and it can be driven in and installed underground as planned. As described above, according to the present invention, welding is used as a means to introduce the divided constituent members of the steel foundation body together. Not only is it easy to do, but the combined state is as strong as if it had been welded together. Moreover, as shown in FIG. 19, the divided components have a shape that is advantageous for stacking, so a large number of components can be stored in one space for transportation or storage.
It is also convenient to handle. As explained above, the present invention can solve at once the problem that the manufacturing cost or transportation and management cost involved in the steel base bodies represented by medium size X and 4 type Y are excessive. It has become possible.

[Brief explanation of the drawing]

The drawings accompany the explanation of the steel foundation of the present invention, and FIG. 1 is a partial cross-sectional view of a conventional construction method, a side view and a perspective view. FIG. 11 and FIG. 11 are also perspective views thereof. FIG. 12 and FIG. 13 are a perspective view and a plan view, respectively, regarding the manufacturing process of the above-mentioned known copper base body. 14 and 15 are a perspective view and a plan view, respectively, of the structure of the steel base body of the present invention, and FIG. 16 and 1
FIG. 7 is a front view showing a part of the same. FIG. 18 is a side view regarding the construction of the present invention, and FIG.
The figure is a plan view showing an example of the effects of the present invention.
Above 1. First divided body
20. Second resistance plate body 2 Second divided body 2121'
Resistance plate 33' Support cylinder forming part 22. Support tube 44' clip groove 23 guide groove 5
5' joint part 24 bent edge 66' resistance
Anti-plate 25 Tool 7
Claw 26 Soil discharge pipe 8
Through hole 27 Tip cut 9 Claw receiver 28 Tsuba 10, bent part 29 Grip 11 Clip material 30 Attack protrusion 12 Height part 31 Hollow 13
Stop groove 32 Rapid hardening cement 14 Support tube 33 Steel plate joint L 5.1
F;, Sign pillar 34 Resistance plate coupling part 16
Foundation part, 35 bending/material] 7 supports
Holder 36 Plate material 18
Resistance plate 37 Single member 19
1st resistance plate

Claims (1)

[Claims] IfI: A support cylinder with an inner diameter larger than the outer diameter of the signpost by a planned amount:
Support cylinder forming part 3. On the side of the image, the respective flat plate surfaces point in the same direction, and a plurality of upwardly directed claws 7. is pushed out 12 inward to form a joint 5 with a clip groove 4 cut in its upper end, and at each side end of the joint 5 are formed resistance plates 6 bent outward at a planned angle. Divided body 1. and the first divided body 1
When assembling the second divided body 2, which has a joint portion 5' with a tongue groove 4' cut into it in a substantially symmetrical shape, the respective claws 7 of the first divided body 1 are inserted into the through holes of the second divided body 2. 8
, and join the inner flat plate surfaces of the joint portions 55', respectively, and move the second divided body 2 downward, and insert the claw receiver 9 at the upper end of the through hole 8 into the bent portion 10. of the claw 7. 1. The clip grooves 44' of the joint portions 55' whose rear upper ends are in contact with each other are provided with rear portions 12 having the same depth as the clip grooves 44'. A steel base body characterized in that the first divided body 1 and the second divided body 2 are assembled by fitting a clip member 11 with a stop groove 13 cut into the lower part thereof.