JP2005307479A - Concrete utility pole reinforcing method and concrete utility pole reinforced by the method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a concrete utility pole reinforcing method for positively and efficiently reinforcing the entire body of a concrete utility pole, and to provide the concrete utility pole reinforced by the method. <P>SOLUTION: According to the method a tip cover 1d of the concrete utility pole is removed, and a plurality of rod-like lower reinforcing members 5 are hung from an aperture 1e of the concrete utility pole and inserted into a hollow portion 3 of the same until their lower edges reach a bottom, and the inserted lower reinforcing members 5 are uniformly arranged in the hollow portion 3, followed by charging non-contractible mortar 67 in the hollow portion 3 to fill gaps between the lower reinforcing members 5. Then upper reinforcing members 13 are inserted from the aperture 1e into the hollow portion 3 until their lower edges reach the vicinity of upper edges of the respective lower reinforcing members 5, and the shrinkage-compensating mortar 67 is charged and filled into the hollow portion 3 where the upper reinforcing members 13 are inserted, until the aperture 1e of the tip 1c of the concrete utility pole is filled with the mortar. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a method of reinforcing a concrete power pole that reinforces a standing concrete power pole and a concrete power pole reinforced by the method.

  As shown in FIG. 21 (a), the concrete utility pole 1 is erected with its lower base end buried in the ground, and its periphery is a reinforcing bar as shown in the cross section of FIG. 21 (b). It is only surrounded by the outer peripheral part which consists of 1a and concrete 1b, Comprising: The inside is a cavity and the hollow part 3 is formed here. Further, a lid, that is, an uncovered lid 1 d is attached to the top portion 1 c which is the uppermost end portion of the concrete utility pole 1 so that rain or the like does not enter the hollow portion 3 of the concrete utility pole 1.

  Since the concrete utility pole 1 having a hollow inside as described above is deteriorated due to secular change or the like, the strength of the concrete utility pole 1 is reduced. It has been broken.

In order to reinforce the concrete utility pole 1 in the past, the concrete utility pole is mainly used for the lower end portion of the concrete utility pole 1 buried in the ground and the portion near the ground extending from the ground. A hollow portion of the concrete utility pole 1 from a first opening such as a ground hole formed on a side surface of, for example, 1.05 m above the base of 1 or a second opening formed slightly above the opening 3. Insert a plurality of rod-shaped members as reinforcing materials into 3 and then, for example, insert bean gravel or crushed stone into the gaps between the plurality of rod-shaped members, and then sequentially add mortar, concrete, etc., thereby the lowermost end portion of the concrete utility pole 1 To the vicinity of the portion where the ground hole is formed.
Japanese Patent Application No. 2003-24176

  As described above, in the conventional method for reinforcing a concrete power pole, the ground is reinforced mainly from the bottom end of the concrete power pole 1 to the vicinity of the portion where the ground hole close to the ground is formed. There is a problem in that the inside of the portion above the hole remains hollow, and the strength of the portion above this hole is also weakened due to deterioration, and reinforcement of the entire concrete power pole is also desired including this portion.

  The present invention has been made in view of the above, and an object of the present invention is to provide a method for reinforcing a concrete power pole that reliably and efficiently reinforces the entire concrete power pole, and a concrete power pole reinforced with the method. It is to provide.

  In order to achieve the above object, the concrete electric pole reinforcing method of the present invention according to claim 1 is a concrete electric pole reinforcing method for reinforcing an upright concrete electric pole, and the top of the concrete electric pole A first step of removing the lid attached to the top of the head so as to close the opening, a string attached to the upper end of a plurality of bar-shaped lower reinforcing members having a predetermined length, and a heavy bar at the lower end From the opening from which the lid was removed, insert each lower reinforcing material into the hollow part of the concrete electric pole with the lower end first, while holding the string of each lower reinforcing material outside the opening Each lower reinforcement member is suspended in the hollow portion until the lower end of each lower reinforcement member reaches the bottom in the concrete electric pole, and after each lower reinforcement member reaches the bottom in the concrete electric pole, Reinforcement A second step of hanging the string over the upper edge of the opening and hanging down outside the opening; a third step of uniformly arranging a plurality of lower reinforcing members inserted in the hollow of the concrete electric pole in the hollow; A fourth step of filling a gap between the plurality of lower reinforcing materials by introducing a gap filling material into the hollow portion from the opening in a state where the plurality of lower reinforcing materials are evenly arranged, and this gap filling material A rod-shaped upper reinforcing material having a length from the upper end portion of the plurality of lower reinforcing materials to the top of the concrete electric pole is inserted into the hollow portion from the opening, and the lower end portion is the upper end of the plurality of lower reinforcing materials. The fifth step of suspending in the hollow part until it reaches the vicinity of the part, and inserting a gap filler into the hollow part in which the upper reinforcing material is suspended, and in the hollow part until the opening at the top of the concrete power pole is closed The gap filler And summarized in that and a sixth step of filling.

  According to a second aspect of the present invention, the third step of arranging the plurality of lower reinforcing members equally in the hollow part is to arrange the plurality of lower reinforcing members evenly in the hollow part. A plurality of lower reinforcement members are inserted while inserting an arrangement adjusting rod-like member having substantially the same length as that of the lower reinforcement member into the substantially central portion of the hollow portion from the opening portion with the lower end portion first. A string that is suspended from the upper end of the opening to the outside of the opening is passed through the plurality of penetrations of the uniform arrangement means, and a plurality of lower reinforcing material strings that respectively penetrate the plurality of penetrations are outside the opening. While holding and holding the plurality of lower reinforcing members slightly, the plurality of lower reinforcing members are evenly arranged while gradually suspending the arrangement adjusting rod-like members in the hollow portion, and the arrangement adjusting rod-like members are arranged at the upper ends thereof. Near the opening When suspended until it is placed, the lower end of the extension rod member is removably connected to the upper end of the arrangement adjustment rod member, and the arrangement equality rod shape is held while holding the connected extension rod member. The member is further suspended in the hollow portion, and when the lower end of the arrangement adjusting rod-shaped member reaches the bottom in the concrete electric pole, the extension rod-shaped member is released from the connection with the arrangement adjusting rod-shaped member and taken out from the hollow portion. The gist is to leave only the rod-shaped portion for arrangement adjustment in the hollow portion.

  The method for reinforcing a concrete electric pole according to the present invention as claimed in claim 3 is characterized in that a plurality of lower reinforcing members or arrangement adjusting rod-like members are inserted into the hollow portion from the opening portion with the lower end portion first, and the upper end portion is annularly formed. And the length from the annular portion to the lowermost end is shorter than the length of the lower reinforcing member, and a C-shaped arc portion having a notch between the annular portion and the lowermost end is an annular portion. Is attached to the top of the concrete electric pole, and when inserting the lower reinforcing member or the arrangement adjusting rod-shaped member from the opening to the hollow portion, the lower reinforcing member or Insert the upper end of the bar for adjustment of arrangement into the annular part from the notch from the bottom to the upper part, and close the upper end of the lower reinforcing member or the bar for adjustment of arrangement to the annular part. Lower reinforcement while preventing run-out Or push up the bar member for adjusting the arrangement upward, and when the lower reinforcement or the lower end of the bar member for adjusting the arrangement exceeds the top, the lower part is inserted into the hollow part from the opening of the concrete power pole. The gist is to push down the reinforcing member or the rod member for adjusting the arrangement downward.

  The method of reinforcing a concrete electric pole according to claim 4 is the rod-shaped aramid rod formed of aramid fibers and the heavy bar attached to the lower end of the aramid rod. It is summarized as having.

  According to a fifth aspect of the present invention, there is provided a method for reinforcing a concrete electric pole, wherein a plurality of the equal arrangement means are attached to the arrangement adjusting bar-like member, and the equal arrangement means is slidable on the arrangement adjustment bar-like member. A movable connecting portion to be attached, a fixed connecting portion fixedly attached to the arrangement adjusting rod-shaped member, and one end rotatably attached to the movable connecting portion, and the arrangement adjusting rod-shaped centering on the arrangement adjusting rod-shaped member A plurality of upper arm portions that are radially and evenly attached from the member, a plurality of one ends that are rotatably connected to the other ends of the plurality of upper arm portions, and a plurality of other ends that are rotatably attached to the fixed connecting portion. And a plurality of penetrating portions connected to one of the upper arm portion and the lower arm portion that are rotatably connected.

  The method for reinforcing a concrete electric pole of the present invention according to claim 6 is characterized in that, after the hollow portion is filled with a gap filler in the sixth step, the opening at the top of the concrete electric pole is closed with a lid. And

  The gist of the concrete electric pole reinforcing method of the present invention according to claim 7 is that the first step of removing the lid is performed after attaching a fall prevention net around the top of the concrete electric pole.

  The method for reinforcing a concrete electric pole according to the present invention according to claim 8 is the method of checking the state in the hollow portion of the concrete electric pole after the lid is removed and the opening of the concrete electric pole is exposed in the first step. The gist is to have a confirmation step.

  According to a ninth aspect of the present invention, there is provided a method for reinforcing a concrete electric pole, wherein after the plurality of lower reinforcing members are evenly disposed in the hollow portion in the third step, the plurality of lower reinforcing members are evenly disposed in the hollow portion. The gist of the present invention is to have a reinforcing material arrangement state confirmation step for confirming whether or not it is present.

  According to a tenth aspect of the present invention, the fourth step of filling the gap between the plurality of lower reinforcing members with the gap filler hides at least the upper ends of the plurality of lower reinforcing members. The gist is to fill the gap filler to the extent.

  The gist of the concrete electric pole reinforcing method of the present invention according to claim 11 is that the gap filler is non-shrink mortar.

  The concrete electric pole of the present invention according to claim 12 is reinforced by the method for reinforcing a concrete electric pole according to any one of claims 1 to 11.

  According to the present invention, the top lid of the concrete electric pole is removed, and a plurality of rod-shaped lower reinforcement members are inserted so as to hang down from the opening of the concrete electric pole into the hollow portion until the lower end reaches the bottom, The plurality of inserted lower reinforcement members are evenly arranged in the hollow portion, a gap filler is introduced into the hollow portion to fill the gaps between the plurality of lower reinforcement members, and the upper reinforcement member is inserted into the hollow portion from the opening. Until the bottom end reaches the vicinity of the top end of the lower reinforcement, insert the gap filler into the hollow where the upper reinforcement is inserted, and open the top of the concrete utility pole. Since the inside of the hollow part is filled with a gap filler until the part is closed, the entire part from the bottom to the top of the bottom end of the concrete electric pole can be completely reinforced with a reinforcing material and a gap filler such as a non-shrink mortar. it can.

  According to the present invention, since the plurality of lower reinforcement members are evenly arranged in the hollow portion of the concrete electric pole using the arrangement adjusting bar-like member having the equal arrangement means, the reinforcement by the plurality of lower reinforcement members is uniform without unevenness. And completely done.

  According to the present invention, since a plurality of lower reinforcing members or arrangement adjusting rod-like members are inserted into the hollow portion from the opening using the steadying means, for example, a considerably long lower reinforcing member such as 6 m or the like is arranged. Even if it is an adjustment rod-shaped member, the lower reinforcing member and the arrangement adjustment rod-shaped member can be safely inserted into the hollow portion safely without shaking.

  According to the present invention, the top cover of the concrete utility pole is removed using a fall prevention net. For example, the cover is removed while peeling the concrete using a bar or a hammer, and the concrete fragments fall. Even so, the work can be safely performed without being caught by the fall prevention net and falling to the ground around the concrete power pole.

  According to the present invention, after the lid is removed and the opening of the concrete electric pole is exposed, the state in the hollow portion of the concrete electric pole is confirmed in the hollow portion confirmation step, so that the lower reinforcement member 5 and the like are inserted into the hollow portion. Can be carried out smoothly and efficiently.

  According to the present invention, after arranging the plurality of lower reinforcement members evenly in the hollow portion, it is confirmed in the reinforcement material arrangement state confirmation step whether or not the plurality of lower reinforcement members are evenly arranged in the hollow portion. After confirming that the plurality of lower reinforcing members are evenly arranged, a gap filler such as non-shrink mortar can be introduced, and the reinforcement with the plurality of lower reinforcing members can be performed uniformly and completely without bias.

  Hereinafter, the best mode for carrying out the present invention (hereinafter referred to as an embodiment) will be described with reference to the drawings.

  FIGS. 1A and 1B are a longitudinal sectional view and a transverse sectional view showing an internal structure of a concrete electric pole 10 reinforced by a concrete electric pole reinforcing method according to an embodiment of the present invention, respectively. As shown in the figure, the reinforced concrete electric pole 10 erected with its lower end portion buried in the ground 15 has a hollow portion 3 of the pre-reinforcement concrete electric pole 1 having a hollow interior as described with reference to FIG. A plurality of lower reinforcing members 5 and upper reinforcing members 13 are inserted therein, and gaps between these reinforcing members are filled with a non-shrink mortar 67 which is a gap filling material for reinforcement. In addition, the concrete electric pole reinforced with the concrete electric pole reinforcement method of this embodiment is a single pole with an overall length of about 8 m to 9 m, for example, and about 1.4 m to 1.5 m of this total length. The lower end of the burial is buried in the ground, and 6.6 to 7.5 m is on the ground.

  More specifically, a plurality of, in the present embodiment, four lower reinforcing members 5 are inserted below the hollow portion 3 of the pre-reinforcing concrete electric pole 1, and the arrangement adjusting rod-shaped member 7 is located at the center of these lower reinforcing members 5. 1 and four lower reinforcing members 5 are attached to the middle of the arrangement adjusting bar-like member 7 by three equal arrangement means 9 in this embodiment as shown in FIG. Centered on the arrangement-adjusting rod-shaped member 7, it is evenly arranged in the hollow portion 3, and the gap between the four lower reinforcing members 5 and the arrangement-adjusting rod-shaped member 7 that are equally arranged is filled with a non-shrink mortar 67. Has been.

  Heavy bars 5 a are attached to the lower ends of each of the plurality of lower reinforcing members 5, and these heavy bars 5 a abut against the bottom in the reinforced concrete electric pole 10, that is, the bottom of the hollow portion 3. Moreover, although the string 11 is attached to the upper end part of these lower reinforcement materials 5, these strings 11 remain in the hollow part 3, and are embed | buried in the non-shrinkable mortar 67. FIG.

  The arrangement-adjusting rod-like member 7 is shorter than the length of the reinforced concrete electric pole 10 and is about half the length of the reinforced concrete electric pole 10, and the upper end portion is located in the middle of the reinforced concrete electric pole 10. However, the upper reinforcing member 13 is disposed directly above the upper end portion of the arrangement adjusting bar member 7. The upper reinforcing member 13 has a heavy bar 13a attached to a lower end part thereof, and an upper end part of the arrangement adjusting bar-like member 7 is located directly below the heavy bar 13a. The upper end portion of the upper reinforcing member 13 extends to the top portion 1c of the reinforced concrete electric pole 10, and the end cap 1d is fixedly attached to the top portion 1c with bolts or the like.

  As shown in FIG. 2 (a), the lower reinforcing member 5 includes the rod-shaped aramid rod 5b formed of aramid fibers, and the heavy bar composed of, for example, a deformed reinforcing bar attached to the lower end of the aramid rod 5b. 5a, and a string 11 made of cotton string or stainless steel wire is attached to the upper end portion. The length of the aramid rod 5b is, for example, 5.5 m to 6.5 m, the length of the string 11 is, for example, 5 m, and the length of the heavy bar 5a is, for example, 30 cm. The heavy bar 5a is provided along the lower end of the aramid rod 5b, and the lower end of the aramid rod 5b and the heavy bar 5a are fixed using, for example, fasteners and bolts.

  As shown in FIG. 2 (b), the upper reinforcing member 13 is a rod-shaped aramid rod 13b formed of aramid fibers, and the heavy bar composed of, for example, a deformed reinforcing bar attached to the lower end of the aramid rod 13b. 13a. The length of the aramid rod 13b is 3 m, for example, and the length of the heavy bar 13a is 30 cm, for example. The heavy bar 13a is attached straight to the lower end of the aramid rod 13b.

  As shown in the exploded view of FIG. 3A, the arrangement adjusting rod-like member 7 is provided with a stone bump 71a at the lower end, and the equal arrangement means 9 is provided at two positions near the lower end and the upper end. An attached lower arrangement adjusting rod-like member 71, an upper arrangement adjusting rod-like member 73 having an upper end connected to the lower end of the lower arrangement adjusting rod-like member 71, and the equal arrangement means 9 attached to the substantially center. It is composed of The length of the lower arrangement adjusting rod-shaped member 71 is, for example, 2.4 m, and the length of the upper arrangement adjusting rod-shaped member 73 is, for example, 2.7 m.

  A male screw 71c is formed on the upper end portion 71a of the lower arrangement adjusting rod-shaped member 71 as shown in FIG. 3A, and the lower end portion 73a of the upper arrangement adjusting rod-shaped member 73 is formed on the lower end portion 73a of FIG. As shown in an enlarged manner, a female screw 73 b is formed, and the upper arrangement adjustment is made to the lower arrangement adjusting rod-like member 71 by screwing the male screw 71 c of the lower arrangement adjusting rod-like member 71 with the female screw 73 b of the upper arrangement adjusting rod-like member 73. The bar member 73 for connection is connected, and the bar member 7 for arrangement | positioning adjustment is comprised by this. A pin 73 d is attached to the upper end portion 73 c of the upper arrangement adjusting rod-shaped member 73.

  As shown in detail in FIG. 172, the uniform arrangement means 9 has a plurality of, in this embodiment, a plurality of through-holes 138 through which the four lower reinforcing members 5 penetrate, and in this embodiment, four through portions 138. The four lower reinforcement members 5 are supported by the through portions 138 and are arranged uniformly.

  As shown in more detail in FIG. 18, the uniform arrangement means 9 has four arm portions 77 including an upper arm portion 133 to which the penetrating portion 138 is attached and a lower arm portion 134, and the penetrating portion 138 is an upper arm portion. A connecting portion 139 that can be inserted into a hole 136 formed in the middle of the portion 133 and the lower arm portion 134, and the connecting portion 139 is inserted into either the upper arm 133 or the lower arm portion 134. It is attached by doing. In addition, when the equal arrangement means 9 is inserted into the hollow portion 3 of the pre-reinforcing concrete electric pole 1 at the elbow portion that connects the upper arm portion 133 and the lower arm portion 134 movably to each other, the inner wall surface of the hollow portion 3 A plain washer 135 that facilitates the horizontal deployment of the uniform arrangement means 9 is attached movably.

  More specifically, when the penetrating portions 138 are attached to the arm portions 77 by the connecting portions 139, the penetrating portions 138 do not become the same side of the upper arm portion 133 and the lower arm portion 134 in the adjacent arm portions 77, but alternately. It is changed and attached as follows. In other words, when the penetrating portion 138 is attached to the upper arm portion 133 in a certain arm portion 77, the penetrating portion 138 is attached to the lower arm portion 134 in the arm portion 77 adjacent to the arm portion 77 on both sides. Yes.

  Further, the lower end portions of the plurality of lower arm portions 134 are fixedly attached to the lower arrangement adjusting rod-like member 71 (upper arrangement adjusting rod-like member 73) by the fixed connecting portion 132, and each upper arm portion 133 is movable. When the connecting portion 131 is movably attached to the lower arrangement adjusting rod-like member 71 (upper arrangement adjusting rod-like member 73), and the movable connecting portion 131 is moved upward with respect to the fixed connecting portion 132, As shown in FIG. 19, the uniform arrangement means 9 is such that the arm portion 77 made up of the upper arm portion 133 and the lower arm portion 134 is closed and becomes thinner overall, thereby opening the top head portion 1c of the concrete electric pole 1 before reinforcement. It can be easily inserted into the hollow portion 3 of the pre-reinforcing concrete electric pole 1 from the portion 1e.

  As shown in FIG. 18, the stopper 137 has a lower arrangement adjusting rod-shaped member 71 (upper arrangement) at a position slightly above the position of the fixed connection part 132 to which the lower end of each lower arm part 134 is attached. The movable connecting portion 131 which is fixedly attached to the adjusting rod-like member 73) and slidably attaches the upper end portion of each upper arm portion 133 to the shaft rod 72 is moved below the stopper 137. It is supposed not to.

  Moreover, each penetration part 138 is attached so that the edge parts of the two semi-annular members 138a and 138b which have the same diameter can move mutually. The connecting portion 139 is attached to the middle of one semi-annular member 138 a, and is attached to the hole 136 of the arm portion 77 by the connecting portion 139.

  FIG. 3B is an exploded view of the extension rod-like member 25 used when the arrangement-adjusting rod-like member 7 shown in FIG. 3A is inserted into the hollow portion 3 of the pre-reinforcement concrete electric pole 1. FIG.

  As shown in FIG. 3B, the extension rod-like member 25 includes a lower extension rod-like member 27 whose lower end portion 27a is connected to the upper end portion 73c of the upper arrangement adjustment rod-like member 73, and the lower extension rod-like member. The upper end portion 27c of the member 27 is composed of an upper extension rod-shaped member 29 having a lower end portion 29a connected thereto. The lengths of the lower extension rod member 27 and the upper extension rod member 29 are, for example, 2.5 m.

  A lock-type slit 27b into which a pin 73d of an upper end portion 73c of the upper arrangement adjusting rod-like member 73 is removably fitted is formed in the lower end portion 27a of the lower extension rod-like member 27. Accordingly, when the locking slit 27b of the lower extension rod-like member 27 is fitted to the pin 73d of the upper end portion 73c of the upper arrangement adjustment rod-like member 73, the lower extension rod-like member 27 becomes the upper arrangement adjustment rod-like member 73. As shown in the structure of the lock-type slit 27b, the lower extension rod-like member 27 is slightly moved in the longitudinal direction to rotate the pin 73d through the lateral hole of the lock-type slit 27b. Then, the lower extension rod member 27 is remotely released from the connection with the upper arrangement adjustment rod member 73, and the lower extension rod member 27 can be removed.

  A female screw 27d is formed at the upper end 27c of the lower extension rod-shaped member 27, a female screw 29b is formed at the lower end 29a of the upper extension rod-shaped member 29, and the female screw 27d of the lower extension rod-shaped member 27 is extended upward. The lower extension rod-like member 27 is connected to the upper extension rod-like member 29 by being screwed into the female screw 29b of the extension rod-like member 29, whereby the extension rod-like member 25 is configured.

  Next, with reference to the flowchart shown in FIG. 4 and FIG. 5 and subsequent figures, the concrete electric pole reinforcement method of this embodiment is demonstrated.

  First, after making preparations such as aligning various members such as the lower reinforcing member 5, the arrangement adjusting rod-shaped member 7, and the upper reinforcing member 13 (step S 11), first, as shown in FIG. A steadying guide 21 as a steadying means is attached to the top 1c of the utility pole 1 (step S13).

  The steady rest guide 21 has a long reinforcing member such as a lower reinforcing member 5, an arrangement adjusting rod member 7, an extending rod member 25, an upper reinforcing member 13, and the like in the hollow portion 3 from the opening 1 e of the pre-reinforcing concrete electric pole 1. In order to prevent the upper end of the long member from being shaken when inserted into the frame, it is used to attach a fall prevention net 31 described later.

  As shown in detail in FIG. 5A, the steady rest guide 21 has a C-shaped arc having an annular portion 21a at the upper end portion and a notch portion 21c substantially parallel to the annular portion 21a. Two portions 21b are disposed, and the annular portion 21a and the two arc portions 21b are fixedly connected by four connecting rods 21d. 5 (a) and 5 (b), the end cap 1d is not shown on the top 1c of the pre-reinforced concrete utility pole 1, but in the stairs where the steady rest guide 21 is attached as shown in FIG. The end pole lid 1d is attached to the concrete reinforcing pole 1 before reinforcement.

  As shown in FIG. 5B, the steady rest guide 21 configured as described above is fixedly attached to the top head 1c of the pre-reinforcing concrete utility pole 1 with a tape 23 made of metal or nylon, for example. It is done.

  6 (a) and 6 (b), as shown in FIG. 5, the lower reinforcing member 5 and the lower placement adjustment are made using the steady rest guide 21 attached to the top 1c of the concrete electric pole 1 before reinforcement. It is a figure for demonstrating the method to insert the rod-shaped member 71 for use in the hollow part 3 from the opening part 1e of the concrete electric pole 1 before reinforcement. 6 (a) and 6 (b), the end cap 1d of the pre-reinforcement concrete electric pole 1 is already removed and the opening 1e of the pre-reinforcement concrete electric pole 1 is exposed to the top 1c. The case where the lower reinforcing material 5 and the lower arrangement adjusting rod-shaped member 71 are inserted from the opening 1e is illustrated.

  First, as shown in FIG. 6A, when the lower reinforcing member 5 which is a long member is inserted from the opening 1e of the pre-reinforcing concrete electric pole 1 using the steady rest guide 21, the lower reinforcing member is used. The upper end portion of the material 5, that is, the upper end portion to which the string 11 is attached is inserted into the notch portion 21 c of the steady rest guide 21. Then, the upper end portion of the lower reinforcing member 5 is pushed upward from the cutout portion 21c, and the upper end portion passes through the annular portion 21a as shown in FIG. The part is placed on the annular part 21a as shown in the figure to prevent shaking.

  In this manner, the lower reinforcing member 5 is pushed up further in the state where the upper end portion of the lower reinforcing member 5 is inserted into the annular portion 21a to prevent it from swinging, and the lower end portion of the lower reinforcing member 5 is When the top portion 1c is exceeded, the lower reinforcing member 5 is pushed downward so that the lower end portion is inserted into the hollow portion 3 from the opening portion 1e. Then, by further continuing the pushing-down operation, the lower reinforcing member 5 is moved from the opening portion 1e into the hollow portion 3 while preventing the swinging of the lower reinforcing member 5 by moving the upper end portion thereof toward the annular portion 21a. Can be inserted.

  FIG. 6B illustrates a case where the lower arrangement adjusting rod-shaped member 71 is inserted from the opening 1e of the pre-reinforcing concrete electric pole 1 instead of the lower reinforcing member 5 shown in FIG. 6A. However, the insertion method is the same as that in FIG. 6A except that the lower reinforcing member 5 is replaced with the lower arrangement adjusting rod member 71 in FIG. 6A.

  In addition, as shown in FIG.6 (b), when inserting the lower arrangement | positioning adjustment rod-shaped member 71 from the opening part 1e of the concrete electric pole 1 before reinforcement, it is attached to the lower arrangement | positioning adjustment rod-shaped member 71 equally. As shown in FIG. 19, it is desirable to close the arm portion 77 to make the placement means 9 thin as a whole.

  As described above, after the steady rest guide 21 is attached to the top 1c of the concrete pole 1 before reinforcement, as shown in FIG. When the fall prevention net 31 is attached to the top portion 1c of the electric pole 1 and the end lid 1d of the concrete pole 1 before reinforcement is removed, the broken concrete fragments are prevented from falling downward.

  As shown in FIG. 7 (b), the fall prevention net 31 includes a rectangular net portion 31a, a bendable horizontal bar 31b attached to the upper side of the net portion 31a, and a lower side from the horizontal bar 31b. Of the five vertical bars 31d extending vertically to the half of the net 31a, the string 31c attached to the intersection of the vertical bar 31d and the horizontal bar 31b, and the five vertical bars 31d. It is comprised from the string 31e attached to the vertical bar 31d located in the left end.

  And in order to attach the fall prevention net 31 comprised in this way to the top part 1c of the concrete electric pole 1 made of concrete before reinforcement to which the steady rest guide 21 is attached as shown to Fig.7 (a), the horizontal bar 31b is first attached. A cylindrical shape is formed so as to surround the lower portion of the steady rest guide 21 and the top portion 1c of the pre-reinforcement concrete electric pole 1 with the net portion 31a while being bent round, and is attached to the left end vertical bar 31d in this cylindrical state. The string 31e is tied to another vertical bar 31d to complete the cylindrical shape.

  Then, the string 31c attached to the horizontal bar 31b at the upper end of the cylindrical shape is tied to the arc portion 21b of the steady rest guide 21 at an appropriate interval to fix the cylindrical shape. Then, the net 31a positioned at the lower end of the cylindrical shape is wound so as to be narrowed around the pre-reinforcement concrete electric pole 1, and the cylindrical shape is conical, and the net is wound around the pre-reinforcement concrete electric pole 1 If the lower end part of the part 31a is tied and fixed with the string 32, as shown to Fig.7 (a), the fall prevention net | network 31 will be attached to the circumference | surroundings of the top part 1c of the concrete electric pole 1 before reinforcement.

  As described above, after attaching the steady rest guide 21 and the fall prevention net 31 to the top 1c of the pre-reinforcement concrete electric pole 1, the end lid 1d of the top 1c of the pre-reinforcement concrete electric pole 1 is shown in FIG. Are removed using the bar 101 and the hammer 103 (step S15).

  The end cap 1d is a bolt 119 or the like that is fixed to the top 1c of the pre-reinforced concrete utility pole 1 and covered with concrete, so that the bolt portion is not shown in FIG. The end lid 1d is removed by using a chisel or the like. After removing the end cap 1d in this manner, the fall prevention net 31 is no longer necessary, so the fall prevention net 31 is removed from the top 1c of the pre-reinforced concrete utility pole 1 here.

  When the end cover 1d of the pre-reinforcement concrete electric pole 1 is removed and the opening 1e of the pre-reinforcement concrete electric pole 1 is exposed, the state in the hollow part 3 of the pre-reinforcement concrete electric pole 1 is then confirmed from this opening 1e. (Step S17).

  The confirmation operation in the hollow portion 3 of the pre-reinforced concrete utility pole 1 is performed by using a test placement adjusting jig 33 as shown in FIG. A smooth insertion confirmation operation for confirming whether or not 7 can be smoothly inserted, and a video confirmation operation for photographing the inside of the hollow portion 3 using the camera 47 and the monitor 53 and confirming with a video as shown in FIG. There is.

  First, with reference to FIG. 9 and FIG. 10, the smooth insertion confirmation operation using the test arrangement adjusting jig 33 will be described.

  As shown in FIG. 9, the test arrangement adjusting jig 33 corresponds to the one in which the arrangement adjusting rod-like member 7 is shortened and only one uniform arrangement means 9 is attached, but the length is about 80 cm. The arrangement adjusting bar-shaped member 33a and the equal arrangement means 9 attached to the lower part of the test arrangement adjusting bar-shaped member 33a, specifically, the position of about 30 cm from the lower end of the test arrangement adjusting bar-shaped member 33a , A stone bump 33b attached to the lower end of the test arrangement adjusting bar-shaped member 33a and a string 33c having a length of about 1 m attached to the upper end of the test arrangement adjusting bar-shaped member 33a. .

  In order to confirm the state in the hollow portion 3 of the pre-reinforcement concrete electric pole 1 using the test arrangement adjusting jig 33 configured as described above, first, as shown in FIG. The lower end portion 33 is inserted into the opening 1 e of the pre-reinforcing concrete electric pole 1 from the cutout portion 21 c of the steady rest guide 21.

  Then, as shown in FIG. 10 (b), the test arrangement adjusting jig 33 is vertically moved while the equal arrangement means 9 attached to the test arrangement adjusting rod-shaped member 33a is closed and thinned as shown in FIG. The upper end portion with the string 31c is put into the notch portion 21c of the steady rest guide 21 and the lower end portion is inserted into the hollow portion 3 from the opening 1e. After being inserted into the hollow portion 3, the uniform arrangement means 9 is changed from a thinly closed state to a widely opened state.

  Next, as shown in FIG. 10 (c), the uniform arrangement means 9 is widely opened while the string 33 c of the test arrangement adjustment jig 33 is held and the test arrangement adjustment jig 33 is suspended in the hollow portion 3. Then, the test arrangement adjusting jig 33 is lowered below the inside of the hollow part 3 by, for example, about 1.5 m, and it is confirmed whether or not the test arrangement adjusting jig 33 can be properly lowered into the hollow part 3.

  After confirmation in this way, as shown in FIG. 10 (d), the test arrangement adjusting jig 33 is pulled up and taken out from the cutout portion 21 c of the steady rest guide 21. If the uniform arrangement means 9 is caught by this take-out operation, a part of the arm 77 of the uniform arrangement means 9 is hooked with a hook or the like, and the uniform arrangement means 9 is narrowly closed and pulled up as shown in FIG. .

  Next, an image confirmation operation for photographing the inside of the hollow portion 3 using the camera 47 and the monitor 53 and confirming with an image will be described with reference to FIG.

  As shown in FIG. 11A, for example, a bar-like or plate-like support member 35 is attached to the opening 1 e of the pre-reinforcement concrete electric pole 1, and the tip of the support member 35 is connected to the opening 1 e of the pre-reinforcement concrete electric pole 1. A rotating member 41 having a groove formed on an outer peripheral surface such as a pulley is attached to the tip of the support member 35 extending to the center. A wire 39 is put on the groove of the rotating member 41, and a weight 45 is attached to a lower end portion of the wire 39 via a snap-in salcan 43 as shown in FIG.

  On the other hand, the upper end portion of the wire 39 is wound around a winder 37 such as a fishing reel attached to the end portion of the support member 35, and the wire 39 is rotated by rotating the winder 37 with a handle 37a. It is configured such that the weight 45 at the lower end of the wire 39 can be hung down or pulled up into the hollow part 3 of the pre-reinforcing concrete electric pole 1 by winding or unwinding.

  As shown in FIG. 11 (a), a cylindrical camera 47 is attached to a portion near the lower end portion of the wire 39 that can be wound or unwound by the winder 37 as described above. The camera cord 51 extending upward from the camera 47 is also fixedly attached so as to be tied to the wire 39 by an attachment member 53 such as a vinyl tape.

  Then, the camera cord 51 of the camera 47 tied to the lower end portion of the wire 39 in this way is extended upward in the hollow portion 3 along the wire 39, exits from the opening portion 1 e, and is output to the monitor 53. Thus, an image in the hollow part 3 photographed by the camera 47 can be observed on the monitor 53 to confirm whether the hollow part 3 is normal.

  Specifically, the weight 45 at the lower end portion of the wire 39 is inserted into the hollow portion 3 from the opening portion 1e of the concrete pole 1 before reinforcement, and the camera 47 attached near the lower end portion of the wire 39 is also hollow from the opening portion 1e. When the wire 39 is gradually lowered downward in the hollow portion 3 so as to be pulled by the weight of the weight 45 by operating the handle 37a of the winder 37 after being inserted into the portion 3, the wire 39 Since the camera 47 tied to the camera can also descend gradually down the hollow portion 3, the camera 47 sequentially captures the state in the hollow portion 3 while it is descending, and this sequentially captured image is displayed on the monitor 53. Observe to confirm whether or not the inside of the hollow portion 3 is normal.

  In this way, when the camera 47 reaches the bottom of the lowermost end in the hollow portion 3, the bottom state is imaged by the camera 47, and the captured image is confirmed by the monitor 53. On the bottom of the hollow portion 3 of the pre-reinforcing concrete electric pole 1, earth and sand 105 including sludge, for example, is slightly raised, and retained water 111 is present on the earth and sand 105. Further, the outer periphery of the vicinity of the lowermost end portion of the pre-reinforcement concrete power pole 1 is swelled inward to form a slot 107, and a part of the outer periphery of the pre-reinforcement concrete power pole 1 is configured with concrete. Since the existing wire 109 may be exposed, these states are imaged by the camera 47 and confirmed by the monitor 53.

  And when there exists the stored water 111, earth and sand 105, etc. in the bottom part of the concrete electric pole 1 before reinforcement, it discharges outside using an exhaust pump, a vacuum, etc., for example.

  Further, in the hollow portion 3 of the concrete pole 1 before reinforcement, a ground wire 113 having a lower end grounded at a portion embedded in the underground 15 and an upper end extending upward is formed along the side wall of the hollow portion 3. Since it is provided, such a ground wire is processed so as not to interfere with the arrangement of the lower reinforcing member 5. In addition, in FIG. 11 for demonstrating the image | video confirmation operation | movement which image | photographs the inside of the hollow part 3 using the camera 47 and the monitor 53 and confirms with an image | video as mentioned above, in top head 1c of the concrete electric pole 1 before a reinforcement | strengthening, FIG. Although the steady rest guide 21 is not attached for simplification of the figure, the steady rest guide 21 is actually attached at this stage as shown in FIG.

  As described above, the smooth insertion confirmation operation using the test placement adjustment jig 33 for checking whether or not the lower reinforcing member 5, the placement adjustment rod-like member 7 and the like can be smoothly inserted into the hollow portion 3 and the camera. When the video confirmation operation for photographing the interior of the hollow portion 3 using the monitor 47 and the monitor 53 and confirming it with the video is completed, a process of arranging a plurality of lower reinforcing members 5 in the hollow portion 3 of the concrete electric pole 1 before reinforcement Is performed (step S19).

  The arrangement of the plurality of lower reinforcing members 5 in the hollow portion 3 will be described in detail with reference to FIGS.

  The lower reinforcing member 5 is inserted so that its upper end is pushed up from the notch 21c of the steady rest guide 21 into the annular portion 21a from below to above, and the upper end of the lower reinforcing member 5 with the string 11 attached thereto. As shown in FIG. 12 (a), the lower reinforcing member 5 is pushed upward further while preventing the swinging by putting it close to the annular portion 21a, and the lower end portion of the lower reinforcing member 5 is the pre-reinforcement concrete electric pole 1 When the top portion 1c is exceeded, the lower reinforcing member 5 is pushed downward so that the lower end portion is inserted into the hollow portion 3 from the opening portion 1e of the pre-reinforcement concrete electric pole 1.

  When the lower end portion of the lower reinforcing member 5 is inserted into the hollow portion 3 from the opening 1e in this way, the lower reinforcing member 5 is further held in the hollow portion 3 while holding the aramid rod 5b of the lower reinforcing member 5 by hand. Push down inside. Then, when the upper end of the aramid rod 5b comes to the vicinity of the opening 1e and the aramid rod 5b cannot be held by hand or the like, the lower reinforcing member is held by holding the string 11 attached to the upper end of the lower reinforcing member 5. The lower reinforcing member 5 is further lowered downward in the hollow portion 3 by the weight of the heavy bar 5a while suspending 5 until the heavy bar 5a at the lower end of the lower reinforcing member 5 reaches the bottom in the hollow portion 3. Lower it down.

  The heavy bar 5a at the lower end of the lower reinforcing member 5 reaches the bottom in the hollow portion 3 which is the bottom of the pre-reinforcing concrete electric pole 1 as shown in FIG. When the arrangement in the hollow portion 3 is completed, the same operation is performed for a plurality of lower reinforcing members 5 in the same manner as in the case of arranging the next lower reinforcing member 5 in the hollow portion 3. The four lower reinforcing members 5 are all arranged on the bottom in the hollow portion 3 of the concrete utility pole 1 before reinforcement. When all the lower reinforcing members 5 have been arranged in the hollow portion 3 in this way, the string 11 attached to the upper end portion of each lower reinforcing member 5 is placed on the opening 1e as shown in FIG. It hangs down outside the opening 1e over the edge.

  When all the lower reinforcing members 5 are arranged in the hollow portion 3, the lower arrangement adjusting rod-like member 71 constituting the arrangement adjusting rod-like member 7 is then replaced with the unreinforced concrete electric pole 1 as shown in FIG. It arrange | positions in the approximate center in the hollow part 3 from the opening part 1e.

  The lower arrangement adjusting rod-shaped member 71 is arranged from the opening 1 e to the substantially center in the hollow portion 3 in the same manner as the lower reinforcing member 5 using the steady rest guide 21. That is, the lower arrangement adjusting rod-shaped member 71 is inserted so that the lower end thereof is pushed up from the cutout portion 21c of the steady rest guide 21 into the annular portion 21a from the lower side to the upper side. The lower arrangement adjusting rod-shaped member 71 is further pushed down while the upper arrangement portion of the lower arrangement adjustment rod 21a is slightly moved closer to the annular portion 21a, and the lower end portion of the lower arrangement adjusting rod-shaped member 71 is the top of the pre-reinforced concrete electric pole 1 If the lower end adjustment rod-shaped member 71 is pushed down so that the lower end portion is slightly inserted into the hollow portion 3 from the opening 1e, the lower arrangement adjustment state is changed to the state shown in FIG. A rod-shaped member 71 is set.

  While the lower arrangement adjusting rod-shaped member 71 is held in the state shown in FIG. 12B, a plurality of equal arrangement means 9 attached under the lower arrangement adjusting rod-shaped member 71, four in the present embodiment. The strings 11 attached to the upper end portions of the four lower reinforcing members 5 are sequentially inserted into the through portions 138. When all the cords 11 are inserted into the respective through portions 138, as shown in FIG. 13 (a), the lower arrangement adjusting rod-shaped member 71 is pushed downward in the hollow portion 3, and the lower arrangement adjusting rod-shaped member 71 is When the evenly arranged means 9 attached to the upper side comes near the opening 1e, the string attached to the upper end portions of the four lower reinforcing members 5 at the four through portions 138 of the evenly arranged means 9 at this position. 11 are inserted sequentially. In the insertion of the string 11, the string 11 that is not inserted into the four through portions 138 of the equal arrangement means 9 attached below the lower arrangement adjustment bar member 71 is located above the lower arrangement adjustment bar member 71. It inserts so that it may insert into the four penetration parts 138 corresponding by the up-down direction of the equal arrangement | positioning means 9 attached to 4 so that the four cords 11 may not cross | intersect. When all four strings 11 are inserted so as not to intersect with the four through portions 138 of the equal arrangement means 9 attached above the lower arrangement adjustment rod-like member 71, the lower arrangement adjustment rod-like member 71 is moved. When the upper end of the lower arrangement adjusting rod-like member 71 comes near the opening 1e of the pre-reinforcement concrete electric pole 1, the upper arrangement adjusting rod-like member 73 is prepared. The male screw 71c at the upper end of the lower arrangement adjusting rod-shaped member 71 is screwed into the female screw 73b at the lower end, whereby the upper arrangement adjusting rod-like member 73 is shown in FIG. Connect to

  When the upper arrangement adjustment rod-shaped member 73 is connected to the lower arrangement adjustment rod-shaped member 71 in this way, the lower arrangement adjustment rod-shaped member connected in this manner is held while the upper arrangement adjustment rod-shaped member 73 is held by hand. The arrangement adjusting rod-shaped member 7 including the member 71 and the upper arrangement adjusting rod-shaped member 73 is further pushed down in the hollow portion 3.

  In this push-down operation, when the uniform arrangement means 9 attached a little above the middle of the upper arrangement adjusting rod-shaped member 73 comes to the vicinity of the opening 1e of the pre-reinforcement concrete electric pole 1, the uniform arrangement is performed at this position. The strings 11 attached to the upper end portions of the four lower reinforcing members 5 are sequentially inserted into the four through portions 138 of the means 9. When the string 11 is inserted, the string 11 that is not inserted into each of the four through portions 138 of the two equal arrangement means 9 to which the lower arrangement adjusting bar member 71 is attached is the upper arrangement adjusting bar member. The uniform arrangement means 9 attached to 73 is inserted into the corresponding four through portions 138 in the vertical direction so that the four strings 11 do not cross each other. When all four strings 11 are inserted in the four through portions 138 of the uniform arrangement means 9 attached to the upper arrangement adjustment rod-like member 73 so as not to intersect, the upper arrangement adjustment rod-like member 73 is further moved downward. When the upper end portion of the upper arrangement adjusting rod-like member 73 comes to the vicinity of the opening 1e of the pre-reinforcement concrete electric pole 1, the lower extension rod-like member 27 constituting the extension rod-like member 25 is prepared. The pin 73d at the upper end of the upper arrangement adjusting rod member 73 is engaged with the locking slit 27b at the lower end portion of the adjusting rod member 27, whereby the lower extension rod member 27 is connected to the arrangement adjusting rod member 7.

  When the lower extension rod-like member 27 is connected to the arrangement adjustment rod-like member 7 as described above, the lower portion extension rod-like member 27 is held by hand, and the arrangement adjustment rod-like member 7 and the lower portion are connected in this manner. The extension rod-like member 27 is pushed downward in the hollow portion 3.

  In this push-down operation, when the upper end portion of the lower extension rod-shaped member 27 comes to the vicinity of the opening 1e of the pre-reinforcement concrete electric pole 1, an upper extension rod-shaped member 29 is prepared, and the lower end portion of the upper extension rod-shaped member 29 is prepared. The male screw 27d at the upper end of the lower extension rod-shaped member 27 is screwed into the female screw 29b, and the upper extension rod-shaped member 29 of the lower extension rod-shaped member 27 is connected.

  When the upper extension rod member 29 is connected to the lower extension rod member 27 in this way, more specifically, the upper extension rod member 27 is connected to the lower extension rod member 27 connected to the arrangement adjusting rod member 7. When the member 29 is connected, the upper extension rod member 29 is held by hand, and the arrangement adjustment rod member 7, the lower extension rod member 27, and the upper extension rod member 29 are connected in this manner. The extension rod-like member 25 is further pushed down in the hollow portion 3.

  In this push-down operation, as shown in FIG. 14A, the hollow portion in which the stone protrusion 71 a at the lower end portion of the arrangement adjusting rod-shaped member 7 connected to the extending rod-shaped member 25 is the bottom of the pre-reinforcement concrete electric pole 1. When the bottom in 3 is reached, the push-down operation is stopped there.

  As described above, after the strings 11 of the four lower reinforcing members 5 are inserted into the four through portions 138 of the uniform arrangement means 9, the uniform arrangement means 9 together with the arrangement adjusting rod-shaped member 7 is contained in the hollow portion 3. By pushing down, the four lower reinforcing members 5 are evenly arranged in the hollow portion 3 by the four through portions 138 of the uniform arrangement means 9.

  When the stone bump 71a at the lower end of the arrangement adjusting rod-shaped member 7 reaches the bottom of the hollow portion 3, the extending rod-shaped member 25 is released from the connection with the arrangement adjusting rod-shaped member 7 and the extending rod-shaped member 25 is removed. The upper extension rod member 29 and the lower extension rod member 27 are removed. More specifically, the arrangement adjusting bar member 7 and the extension rod member 25 are connected by engaging the locking slit 27b of the lower extension rod member 27 with the pin 73d of the upper arrangement adjustment rod member 73. Therefore, the pin 73d and the lock slit 27b can be easily engaged with each other by rotating the lock slit 27b of the lower extension rod member 27 through the extension rod member 25 slightly upward and then rotating. The connection between the rod member 7 for adjusting the arrangement and the extending rod member 25 is released, so that the lower extending rod member 27 and the upper extending rod member 29 constituting the extending rod member 25 in this released state are released. The extension rod-like member 25 can be taken out from the hollow portion 3 as shown in FIG.

  After taking out the extending rod-like member 25 from the hollow portion 3 in this manner, as shown in FIG. 14B, the four lower reinforcing members 5 are evenly arranged in the hollow portion 3 and When the rod member 7 for adjusting the arrangement is provided at substantially the center of the lower reinforcing member 5, the steady rest attached to the top portion 1c of the pre-reinforcing concrete electric pole 1 shows the guide 21 as shown in FIG. Remove it. Then, after removing the steady rest guide 21, the camera 47 and the monitor 53 described above perform the proper arrangement state confirmation operation for confirming whether the four lower reinforcing members 5 are arranged evenly and appropriately. This is performed using (step S21). In addition, after removing the steady rest guide 21, the string 11 attached to the upper end part of each lower reinforcement 5 is fixed to the outer peripheral part of the top part 1c of the electric pole 1 made of concrete before reinforcement with a vinyl tape etc., for example.

  The proper arrangement state confirmation operation using the camera 47 and the monitor 53 will be described with reference to FIG. The proper placement confirmation operation of the plurality of lower reinforcing members 5 shown in FIG. 20 is performed using the same camera 47, monitor 53, wire 39, snap-in salcan 43, weight 45, winder 37, etc. as described in FIG. Although the same is true, since the plurality of lower reinforcing members 5, the arrangement adjusting rod-like member 7 and the plurality of equal arrangement means 9 are inserted into the hollow portion 3, the camera 47, the monitor 53, the weight 45, described in FIG. Since it becomes difficult to insert the wire 39 or the like into the middle of the hollow portion 3 and hang it down, as shown in FIG. 20, these wires hang down from the opening 1 e to the portion near the edge in the hollow portion 3. The other configurations and operations are the same as those in FIG. 11, and the same components are denoted by the same reference numerals.

  In operation, as in the case of FIG. 11, the weight 45 at the lower end of the wire 39 is inserted along the edge of the hollow portion 3 from the opening 1 e of the pre-reinforced concrete electric pole 1, and the lower end of the wire 39 is inserted. The camera 47 attached close to the part is also inserted along the edge of the hollow part 3 from the opening 1e, and then the handle 37a of the winder 37 is operated to be pulled by the weight of the weight 45. When 39 is gradually lowered along the edge of the hollow part 3 toward the lower side in the hollow part 3, the camera 47 tied to the wire 39 also moves along the edge of the hollow part 3 in the hollow part 3. Since it can descend gradually, the camera 47 sequentially images the arrangement state of the plurality of lower reinforcing members 5, the arrangement adjusting rod-like member 7, and the equal arrangement means 9 in the hollow portion 3 during the descending. Image A plurality of lower reinforcement 5 in the hollow portion 3 by observing the monitor 53 an image, placement adjustment bar member 7, to check whether justification means 9 is properly positioned.

  When the proper placement confirmation operation using the camera 47 and the monitor 53 is completed as described above, the funnel-shaped member 63 is attached to the opening 1e of the pre-reinforced concrete utility pole 1 as shown in 15 (b). A non-shrink mortar 67 as a gap filling material is poured from the bucket 65 through the funnel-like member 63 into the hollow portion 3 of the pre-reinforced concrete electric pole 1 to form a plurality of lower reinforcing members 5 and a rod for adjusting the arrangement. The gap between the member 7 and the uniform arrangement means 9 is filled with the non-shrink mortar 67 (step S23). The filling of the non-shrink mortar 67 at this stage is performed to the extent that at least the upper ends of the plurality of lower reinforcing members 5 are hidden.

  Next, as shown in FIG. 16 (a), the upper reinforcing member 13 is inserted into the middle of the hollow portion 3 from the opening 1e of the pre-reinforcing concrete electric pole 1, and the heavy bar 13a at the lower end is shown in FIG. As shown in (b), the upper reinforcing member 13 is suspended in the hollow portion 3 until reaching the vicinity of the upper end portions of the plurality of lower reinforcing members 5, and is set at that position.

  After the upper reinforcing member 13 is suspended in this manner, the non-shrink mortar 67 is further introduced into the hollow portion 3 from the opening 1e of the pre-reinforcing concrete electric pole 1, and the upper reinforcing member 13 and the inner wall of the hollow portion 3 are connected. The space between them is filled with non-shrink mortar 67. This non-shrink mortar 67 is filled until the opening 1e of the top 1c of the pre-reinforcement concrete electric pole 1 is closed. After the filling with the non-shrink mortar 67 is completed in this way, the opening 1e of the top 1c is closed with the end cap 1d (step S25). In closing the end cap 1d, a bolt is used and a portion using the bolt is repaired by, for example, fast-hardening cement, whereby the pre-reinforcement concrete electric pole 1 is reinforced and restored as a reinforced concrete electric pole 10. Completed (step S27).

It is sectional drawing which shows the internal structure of the concrete electric pole reinforced with the reinforcement method of the concrete electric pole concerning one Embodiment of this invention. It is a figure which shows the lower reinforcement material and upper reinforcement material which are used for the reinforced concrete utility pole of embodiment shown in FIG. It is a figure which shows the rod-shaped member for arrangement | positioning adjustment used for the reinforced concrete electric pole of embodiment shown in FIG. 1, and the rod-shaped member for extension. It is a flowchart which shows the process sequence of the reinforcement method of the concrete electric pole of embodiment shown in FIG. It is explanatory drawing which shows a mode that a steadying guide is attached to the top of a concrete electric pole in the reinforcing method of the concrete electric pole of embodiment shown in FIG. It is explanatory drawing which shows a mode that a lower reinforcement material and a lower arrangement | positioning adjustment rod-shaped member are inserted in the hollow part of a concrete electric pole using the steady rest guide shown in FIG. It is explanatory drawing which shows the state which attached the fall prevention net attached to the steady guide attached to the top part of the concrete electric pole in the reinforcement method of the concrete electric pole of embodiment shown in FIG. 1, and this fall prevention net. It is explanatory drawing which shows a mode that the end opening lid | cover of the top part of a concrete electric pole is removed using a bar | burr or a hammer in the reinforcement method of the concrete electric pole of embodiment shown in FIG. It is a figure which shows the arrangement | positioning adjustment jig for a test used for the reinforcement method of the concrete electric pole of embodiment shown in FIG. It is explanatory drawing which shows the procedure which confirms the state in the hollow part of a concrete electric pole using the test arrangement | positioning adjustment jig shown in FIG. It is explanatory drawing which shows a mode that the condition in the hollow part of a concrete electric pole is confirmed using a camera and a monitor in the reinforcement method of the concrete electric pole of embodiment shown in FIG. It is explanatory drawing which shows the operation | movement which inserts a several lower reinforcement material and the rod member for a lower arrangement | positioning adjustment in the hollow part of a concrete electric pole in the reinforcement method of the concrete electric pole of embodiment shown in FIG. It is explanatory drawing which shows the state which inserted the rod-shaped member for lower arrangement | positioning adjustment further into the downward direction in a hollow part following FIG. 12, and connected the rod-shaped member for upper arrangement | positioning adjustment to the rod-shaped member for lower arrangement | positioning adjustment further. It is explanatory drawing which shows a mode that the bar member for lower extension was connected to the bar member for upper arrangement adjustment following FIG. 13, and the bar member for upper extension was connected to the bar member for lower extension. It is explanatory drawing which shows a mode that the steady guide of the top part of a concrete electric pole is removed following FIG. 14, and a non-shrink mortar is thrown in in a hollow part from the opening part of a concrete electric pole. It is explanatory drawing which shows the state which filled the non-shrink mortar further into the whole hollow part of the concrete electric pole, after inserting the upper reinforcement material 13 following FIG. It is a perspective view which shows the structure of the equal arrangement | positioning means which arrange | positions several lower reinforcement material equally. FIG. 18 is a perspective view showing the structure of the uniform arrangement means shown in FIG. 17 in more detail. It is a perspective view which shows the state which closed the uniform arrangement | positioning means shown to FIG. 17, 18 thinly. It is explanatory drawing which shows a mode that it is confirmed using a camera and a monitor whether the several lower reinforcement material is arrange | positioned equally in the hollow part of a concrete electric pole. It is a figure which shows the standing state and cross section of the electric pole made from concrete before reinforcement.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Concrete pole before reinforcement 1c Top part 1d End cap 1e Opening part 3 Hollow part 5 Lower reinforcing material 7 Bar member for arrangement adjustment 9 Uniform arrangement means 10 Reinforced concrete electric pole 11 String 13 Upper reinforcing material 21 Stabilization guide 21a Annular part 21c Notch 25 Extension rod-shaped member 27 Lower extension rod-shaped member 29 Upper extension rod-shaped member 31 Fall prevention net 33 Test placement adjustment jig 47 Camera 53 Monitor 67 Non-shrink mortar 71 Lower placement adjustment rod-like member 73 Upper placement adjustment Bar-shaped member 138 Through part

Claims (12)

A method of reinforcing a concrete utility pole that reinforces a standing concrete utility pole,
A first step of removing a lid attached to the top so as to close an opening of the top of the concrete power pole;
A string is attached to the upper end of a plurality of bar-shaped lower reinforcement members having a predetermined length, a heavy bar is attached to the lower end part, and each lower reinforcement member is arranged with the lower end part first from the opening from which the lid is removed. Insert the hollow part of the concrete utility pole and hold each lower reinforcement member outside the opening until the lower end of each lower reinforcement member reaches the bottom of the concrete utility pole. A second step in which the lower end of each lower reinforcing material reaches the bottom in the concrete electric pole, and then hangs down the outside of the opening by hanging the string of each lower reinforcing material over the upper edge of the opening;
A third step of uniformly arranging a plurality of lower reinforcing members inserted in the hollow portion of the concrete electric pole in the hollow portion;
A fourth step of filling a gap between the plurality of lower reinforcing materials by introducing a gap filler into the hollow portion from the opening in a state where the plurality of lower reinforcing materials are arranged uniformly;
A rod-shaped upper reinforcing material having a length from the upper end portions of the plurality of lower reinforcing materials charged with the gap filler to the top of the concrete electric pole is inserted into the hollow portion from the opening portion, and the lower end portions thereof are plural pieces. A fifth step of suspending in the hollow portion until reaching the vicinity of the upper end of the lower reinforcing member;
And a sixth step of filling the hollow portion with the gap filler until the opening at the top of the concrete electric pole is closed, and the gap filler is put into the hollow portion where the upper reinforcing material is suspended. Reinforcing method for concrete utility poles. The third step of uniformly arranging the plurality of lower reinforcing materials in the hollow portion includes:
An equal arrangement means for evenly arranging a plurality of lower reinforcing members in the hollow portion is attached, and an arrangement adjusting rod-like member having substantially the same length as the lower reinforcing member is placed in the hollow portion from the opening portion with its lower end first. The string that hangs down from the upper end of the plurality of lower reinforcing members to the outside of the opening is inserted through the plurality of through portions of the uniform arrangement means while
The arrangement-adjusting rod-shaped member is gradually suspended in the hollow portion while holding the plurality of lower reinforcing material strings penetrating through the plurality of through portions respectively so as to slightly lift the plurality of lower reinforcing materials. While arranging several lower reinforcements evenly,
When the arrangement adjusting rod-like member is suspended until its upper end is located in the vicinity of the opening, the lower end of the extension rod-like member is removably connected to the upper end of the arrangement adjusting rod-like member,
While holding the connected extension rod member, the arrangement equality rod member is further suspended in the hollow portion, and when the lower end of the arrangement adjustment rod member reaches the bottom in the concrete electric pole, the extension rod member is The method for reinforcing a concrete electric pole according to claim 1, wherein the method is for releasing the connection with the arrangement-adjusting rod-shaped member and taking out from the hollow portion and leaving only the arrangement-adjusting rod-shaped portion in the hollow portion. The process of inserting a plurality of lower reinforcing members or arrangement adjusting rod-shaped members into the hollow portion from the opening portion with the lower end portion first,
A C-shaped arc having an annular portion at the upper end, the length from the annular portion to the lowermost end being shorter than the length of the lower reinforcing material, and having a notch between the annular portion and the lowermost end Attach the bottom end of the steady rest means, which is provided almost parallel to the annular part, to the top of the concrete utility pole,
When inserting the lower reinforcing member or the arrangement adjusting rod-shaped member into the hollow portion from the opening, the upper end of the lower reinforcing member or the arrangement adjusting rod-shaped member is inserted from the notch portion into the annular portion from below to above. Then, the lower reinforcement member or the arrangement adjusting bar-shaped member is pushed upward while pushing the lower reinforcing member or the arrangement adjusting bar-shaped member upward while preventing the shake by placing the upper end of the lower reinforcing member or the arrangement adjusting rod-shaped member closer to the annular portion. When the lower end of the bar-shaped member for use exceeds the top, the lower reinforcing member or the arrangement-adjusting bar-shaped member is pushed downward so that the lower end is inserted into the hollow portion from the opening of the concrete electric pole. Item 3. A method for reinforcing a concrete electric pole according to Item 2.   The said lower reinforcement material and upper reinforcement material have the rod-shaped aramid rod formed with an aramid fiber, and the heavy bar attached to the lower end part of this aramid rod, The any one of Claim 1 thru | or 3 characterized by the above-mentioned. The method of reinforcing a concrete electric pole according to item 1. A plurality of the equal arrangement means are attached to the bar member for adjustment of arrangement,
The equal arrangement means includes:
A movable connecting part slidably attached to the arrangement adjusting rod-shaped member;
A fixed connecting portion fixedly attached to the arrangement adjusting rod-shaped member;
A plurality of upper arm portions, one end of which is rotatably attached to the movable connecting portion, and which is attached radially and evenly from the arrangement adjusting rod-shaped member around the arrangement adjusting rod-shaped member;
A plurality of lower arm parts, one end of which is rotatably connected to the other end of each of the plurality of upper arm parts, and the other end of which is rotatably attached to the fixed connection part;
5. The concrete utility pole according to claim 2, further comprising: a plurality of penetrating portions connected to any one of the upper arm portion and the lower arm portion that are rotatably connected. 6. Reinforcement method.   The concrete according to any one of claims 1 to 5, wherein after the inside of the hollow portion is filled with a gap filler in the sixth step, the opening at the top of the concrete electric pole is closed with a lid. A method for reinforcing electric poles.   7. The concrete electric pole according to claim 1, wherein the first step of removing the lid is performed after a fall prevention net is attached around the top of the concrete electric pole. 8. Reinforcement method.   8. The method according to claim 1, further comprising: a step of confirming the inside of the hollow portion of the concrete electric pole after the lid is removed in the first step and the opening of the concrete electric pole is exposed. The method for reinforcing a concrete electric pole according to claim 1.   After the plurality of lower reinforcement members are evenly arranged in the hollow portion in the third step, a reinforcing material arrangement state confirmation step for confirming whether the plurality of lower reinforcement members are evenly arranged in the hollow portion is included. The method for reinforcing a concrete electric pole according to any one of claims 1 to 8.   The fourth step of filling the gaps between the plurality of lower reinforcement members with the gap filler fills the gap fillers to such an extent that at least the upper ends of the plurality of lower reinforcement members are hidden. The method for reinforcing a concrete electric pole according to any one of Items 9 to 9.   The method for reinforcing a concrete electric pole according to any one of claims 1 to 10, wherein the gap filler is a non-shrink mortar.   A concrete electric pole reinforced by the concrete electric pole reinforcement method according to any one of claims 1 to 11.

Images