JPS59206525A - Preventer for settlement of utility pole - Google Patents

Abstract

PURPOSE:To prevent the settlement of a utility pole by integrally combining a supporter and the pole with a concrete having strong bonding force on the basal portion of the pole. CONSTITUTION:The semi-circular plates 2 of right and left-handed resistor plates 1 are set in a mutually facing manner on both sides of a utility pole 10 and clamped by bolts inserted into the holes 4 with nuts. Connecting levers 8 are fixed between connecting bolts 5, and connecting plates 7 are set and clamped with nuts. Bolts 9 are inserted into the nuts 6 and the resistor plates 1 are fixed to the pole 10. A specific cement prepared by providing strong bonding force and quick setting property for ordinary cement is poured into the aperture between the semi-circular plates 2 and the pole 10 and hardened to form a concrete body 11.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a subsidence prevention device attached to an existing utility pole.

In order to cope with the increasing demand for electricity over the years, higher capacity distribution line systems have been promoted, but this has forced the weight of the wires to gradually increase, and the phenomenon of the utility poles that support them eventually sinking has become noticeable. There was an urgent need for countermeasures.

When talking about measures to prevent utility poles from sinking, when constructing a new utility pole, it is possible to construct various types of supports on top of the existing utility pole that will be excavated, and then install the utility pole on top of this. Measures to prevent subsidence cannot be implemented by such measures, and some kind of work must be done at the underground part of the utility pole.

In theory, it would be possible to carry out such work by attaching a support that would provide sufficient calculated resistance to the underground part of the utility pole, but this is extremely difficult.

This is because most utility poles today have evolved into concrete poles, and if the concrete pole has a considerable external circumferential surface, it is difficult to tighten an appropriate support with bolts or bolts. No matter how strongly it is wrapped with iron wire, etc., it is used to connect the support that will not move in the direction of the small diameter on the tapered surface, so it will gradually move over time, and once the However, once the transition begins, it will completely loosen, and it is absolutely unacceptable to damage the outer peripheral surface of the concrete column and use it as a locking object, and it will be difficult to find a way to connect it. No suitable means of preventing subsidence has been found.

In response to this situation, the present invention aims to achieve its purpose by strongly integrating and bonding the support and the utility pole with a concrete body having strong adhesive properties at the ground level of the utility pole. The implementation of the present invention will be explained below with reference to the accompanying drawings.

Figure 1: Side view Figure 2: Top view Figure 3: Front view (1)
is a resistance plate made of a rectangular steel plate, the longitudinal central side of the resistance plate (1) is cut in a semicircular shape, and both sides thereof are used as coupling sleeves (3), and a plurality of coupling holes (3) are provided on the height thereof. 4) is fixed upright to the resistance plate (1) with its lower side protruding slightly.

Numerals (6) are tightening nuts that are fixed to the inner peripheral surface of the semicircular plate (2) in plural quantities, and holes are also drilled in the semicircular plate (2) to match the screw holes of the tightening nuts (6). In addition, (5) is a connecting bolt, as described later (resistance plate (1) of the same shape).
A resistance plate + 1) is used as a tool for connecting by means of a connecting ring (8) as a means of reinforcing and strengthening it when integrally connected with the
The required quantity is protruded and fixed by penetrating through the hole.

Next, in Fig. 4, two resistor plates (1) of the same shape as above are used to connect two pieces, but first, the electric pole (10) is scissored and the connecting sleeve (3) of each semicircular plate (2) is attached. Connecting hole (4
), pass the bolt through this, tighten the nut, and integrate into a cylindrical shape. Then, place the connecting ring (8) between each connecting bolt (5) and fit the connecting plate (7). Tighten the nut (6) and secure it to the semicircular plate (2).
A tightening bolt (9) is screwed in from the outer circumferential surface of each of the poles (10) and tightly tightened with the pole (10), thereby integrally connecting the pole (10) and the resistance plate (1) in a temporary state. be.

Here, as shown in the side view of Fig. 5 and the side view of Fig. 6, for example, the gap between the cylindrical semicircular plate (2) and the utility pole (10) is made by adding strong adhesion and rapid hardening to ordinary cement. When a special cement such as the commercially available product name Tuscon is injected and filled sufficiently, it hardens rapidly, so it begins to harden within a few minutes after filling, and the hardness increases over time, creating a strong concrete body (11 ), and the tightening bolt (9
) The tentatively integrated state of the utility pole (10) and the resistor plate (1), which relies only on the above, will eventually become a solid integrated state, and the subsidence of the utility pole will be completely prevented.

In addition, it is natural that the planar area of the resistance plate (1) in the present invention is the area calculated from Tonosho's calculation, and also the area of the semicircular plate (
2) The utility pole (1
0) determines the volume of the concrete body (11), and the volume of the concrete body (11) is used to maintain strength for integral connection with the resistance plate (1) and the utility pole (10). This is extremely important and should be carefully calculated.

Furthermore, exposing the cylindrical semicircular plate (2) according to the present invention on the ground surface causes various problems, especially when it is on a road surface, so excavate the ground surface in proportion to the planar area of the resistance plate (1). It is necessary to embed it.

[Brief explanation of the drawing]

FIG. 1 is a side view of a resistance plate (1) integrated with a semicircular plate (2), FIG. 2 is a plan view, and FIG. 3 is a front view. Fig. 4 is a plan view showing the state in which two resistance plates (1) are combined and integrated with a utility pole (10), and Fig. 5 is a plan view showing a state in which two resistance plates (1) are combined and integrated with a utility pole (10), and Fig. 5 is a plan view showing a state in which two resistance plates (1) are connected to a utility pole (10) and a resistance plate using a concrete body (11). FIG. 6 is a side view of the state in which (1) is combined and integrated, and FIG. 6 is a plan view as well. Written by Tsuguhiko Watanabe (2 others), the above patent applicant, resistance plate 7. Connecting plate 2, semicircular plate 8. Connecting ring 3, connecting sleeve 9. Tightening bolt 4, connection hole
10. Utility pole 5, connection bolt 11. Concrete body 6, tightening

Claims (1)

[Claims] After fixing the tightening nut (6) on the inner peripheral surface, the connecting hole (4)
) A semicircular plate (2) having a connecting sleeve (3) with holes in it and two resistor plates (1) fixed and integrated are integrally connected by sandwiching a telephone pole (10), and this is connected to a connecting culm (8). By screwing and tightening the tightening bolt (9) into the tightening nut (6) of the upper fire, which has been reinforced by (2) and the utility pole (10) are injected and filled with strong adhesive rapid hardening cement.
1) A utility pole sinking prevention device which strongly integrates a utility pole (10) and a resistance plate (1) to prevent the utility pole from sinking.