JP2014101745A - Strut member for irrigation canal repair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a member for constructing a novel strut as measures to cope with aging of a strut installed between coping parts on both banks in an irrigation canal.SOLUTION: A strut member for irrigation canal repair is formed from a beam member 1 and a retaining member 2. The beam member 1 includes: a mount body 11 to a coping part of an irrigation canal to be repaired; and a beam body 12 protruding on a front face of the mount body and being longer than a width of the irrigation canal. The retaining member 2 includes a holding connection body which is connected in a non-fixed manner while being formed from: a mount body 21 to the coping part; a beam body placing part 22 which protrudes for an appropriate length on a front face of the mount body; and a holding and covering part 23 which covers the placed beam body 12 and connects with the beam body placement part 22. The beam body 12 is cut into a predetermined length in accordance with a width of the irrigation canal, the mount bodies 11, 21 are mounted in both bank coping parts 01 and the beam body 12 is connected with the holding connection bodies 22, 23, such that the beam body 12 is installed between the copings of the irrigation canal.

Description

  The present invention relates to a beam member used for repairing an agricultural waterway formed mainly by a sheet pile steel plate.

  An irrigation channel having a structure formed by driving a sheet pile steel sheet on both sides and placing a headboard concrete on the upper end of the sheet pile sheet steel is known (FIG. 2 of JP-A-2002-129537).

  These irrigation channels need to be repaired due to secular change. Means for covering with a concrete sheet pile as a repair means (Patent Document 1), means for covering a repair target area with a new steel plate (Patent Document 2, JP 2012-180728 A) Publications) are known.

FIG. 2 of Japanese Patent Application Laid-Open No. 2002-129537. JP2012-180728A.

  Agricultural waterways using sheet pile steel plates are driven by sheet piles into the soil to receive back pressure from both banks. In order to increase durability against the back pressure, between caps and concrete or to form caps concrete A beam member is installed between the H-shaped steels placed on the sheet pile steel plate.

  The above-mentioned beam member is constantly applied with pressure from the ground, and water is flowing in the irrigation channel, so there is naturally moisture. If the beam member is made of metal, it will be corroded and damaged. . If the beam member is damaged and lost, the irrigation channel is narrowed and the irrigation function is deteriorated. Therefore, before the entire irrigation channel is repaired, new installation of the beam member is an immediate response.

  Therefore, the present invention proposes a novel irrigation channel repair beam member that can be quickly attached to irrigation channels having different widths.

  A beam member for repairing a water channel according to the invention of claim 1 is a receiving plate portion that abuts against the front surface of the head portion of the water channel to be repaired, and a mounting plate portion that extends backward from the upper end of the receiving plate portion. A mounting body comprising: a beam member having a beam body longer than the irrigation channel projecting from the front surface of the mounting body; a mounting body similar to the mounting body of the beam member; and a beam body on the front surface of the mounting body It is comprised with the receiving member provided with the holding | maintenance coupling body which hold | gripped the front-end | tip of this and was able to connect non-fixedly.

  Thus, the beam body is cut in accordance with the width of the irrigation channel, and the mounting body of the beam member and the receiving member is mounted on the headboard portion of the irrigation channel, and the distal end portion of the beam body is embraced by the holding connection body. By holding and connecting and applying a retaining treatment to the mounting body, the beam body is newly constructed as a cut beam of the irrigation channel. Therefore, the beam itself is not fixed between the two banks, but only the tip surface of the beam is in contact with the mounting body of the receiving member. Therefore, against the pressure applied between the two banks (back pressure from the ground) If the force that spreads between the two banks due to an earthquake or the like is applied, the tip of the beam will move in the holding connection, and there will be a force between the headboard and the mounting body. Since it is not added, there will be no damage to the installed beam and the headboard of the beam construction site.

  The invention according to claim 2 is composed of an independent beam body with a beam member, and a mounting body including a holding connection body that holds the tip of the beam body and can be connected unfixed. By using the beam body as an independent member, the mounting body used for both the member beam member and the receiving member can have the same structure.

  The invention according to claim 3 specifies the configuration of the holding connection body, and the holding connection body is attached to the beam body mounting portion protruding from the mounting body with an appropriate length, and the mounted beam body tip portion. It is composed of a holding crown part that is crowned and connected to the beam body mounting part, and after the beam body is cut to a predetermined length, the mounting body of the receiving member is attached to the headboard part on one shore of the irrigation channel. In addition, the beam member mounting body is mounted on the headboard portion on the opposite bank, the tip of the beam body is mounted on the beam body mounting portion, and the holding crown portion is crowned on the mounted beam body in an unfixed state. In the hug connection, the beam member is attached to the headboard portion after the receiving member is attached to the headboard portion, so that the fine adjustment work of the length of the beam body can be easily performed.

  Further, in the configuration of the holding coupling body according to claim 3, the canal repairing beam member according to claim 4 is configured so that the beam body mounting portion has a semi-cylindrical shape corresponding to the cross-sectional shape of the beam body and is disposed on both sides. The holding crown portion is provided with a collar portion in a semi-cylindrical shape that is crowned on the beam body, and a folded holding portion that sandwiches the collar portion from above and below is provided on both sides. After the tip of the beam body is placed on the beam body placing portion, the member is crowned on the upper surface of the beam body outside the beam body placing portion, and is moved in the direction toward the beam body placing portion as it is. Since the heel portion is sandwiched up and down, when the clamping portion is crimped or connected by spot welding, the mounting operation of the holding crown portion can be easily performed.

  The invention according to claim 5 specifies the configuration of the holding connection body, and the holding connection body is provided with a suitable length projecting from the mounting body, and a cylindrical portion or a cylinder into which the beam body tip portion is inserted. It is comprised by the rod-shaped part with which a cylindrical beam body is mounted | worn. The member is formed by cutting the beam body into a predetermined length, and then inserting the beam body into the cylindrical portion or inserting the rod-shaped portion into the cylindrical beam body, and placing the mounting plate portions of both mounting bodies on the upper surface of the headboard body. In the position where the beam body is orthogonal to the headboard portion, the attachment body is subjected to a retaining treatment by an appropriate means to construct the cut beam.

  Further, the irrigation repairing beam member according to claim 6 is the one in which the structure for preventing the attachment body from being detached is specified in each of the above-mentioned members, and each attachment body is located on the irrigation channel side in the rearward direction from the lower end of the receiving plate portion. A retaining plate portion extending downward from the length over which the head portion projects from the wall surface is provided. Therefore, by placing the mounting plate portion of the mounting body on the top surface of the headboard portion and inserting the retaining portion below the headboard portion, the mounting body is prevented from being detached upward, and the mounting body can be easily removed. It can be attached to.

  Furthermore, the irrigation channel member according to claim 7 is the structure of claim 6 in which slits are provided from the rear end edge on both sides of the retaining plate portion to form a folded plate portion having an appropriate width. It will be. Therefore, after attaching a mounting body to a headboard part, if a folding | turning board part is folded back to the lower edge back surface of the H-shaped steel which comprises a headboard part, the detachment | leave from a headboard part of a mounting body can be prevented reliably.

  As described above, the present invention can provide a beam member that can be easily adapted to the width of the irrigation channel at the site of the irrigation channel to be repaired and can be easily mounted, and measures against narrowing of the irrigation channel due to ground back pressure. Can be easily done, and is not damaged by ground deformation such as earthquakes.

The whole perspective view of the 1st example of this invention member. Explanatory drawing (plan view) of the mounting operation. FIG. FIG. The perspective view after the mounting | wearing. The whole perspective view of the second embodiment. Explanatory drawing of the state before the mounting | wearing. Explanatory drawing after the mounting. Explanatory drawing of the state before mounting | wearing of the 3rd Example. Explanatory drawing after the mounting.

  Next, an embodiment of the present invention will be described based on three examples. The target for using the slab repairing beam member according to the present invention may be the water channel 03 provided with the headboard portion 01. For example, an agricultural waterway using a sheet pile steel plate 02 is driven by inserting a sheet pile steel 02 into the soil to receive back pressure from both banks to secure the water channel 03, and a headboard portion 01 is provided on the upper edge of the sheet pile steel plate 02. It is provided to partition the upper edge of the irrigation channel from the ground. The headboard portion 01 is composed of a H-shaped steel 04 covered with a sheet pile steel plate 02 and a headwood concrete 05 placed on top of the H-shaped steel 04.

  The water beam repairing beam member of the present invention for repairing the water channel 03 is composed of a beam member (1, 1A) and a receiving member (2, 2A). FIGS. An example is shown and this Example is an example which comprised the holding | maintenance coupling body of the receiving member 2 by the beam body mounting part 22 and the holding crown part 23. FIG.

  The beam member 1 is provided with a mounting body 11 to the headboard portion 01 and a beam body 12 longer than the irrigation channel width protruding from the front surface of the mounting body 11, and the beam body 12 is formed of a metal pipe. The length generally corresponds to the distance between the waterways (the distance between the caps 01 on both banks). Since the irrigation channel is standardized and its channel width is fixed, it is set a little larger than the specified length.

  The receiving member 2 includes a mounting body 21, a beam body mounting portion 22 and a holding crown portion 23 that project from the front surface of the mounting body 21.

  The mounting bodies 11 and 21 have the same structure, and include receiving plate portions 111 and 211, mounting plate portions 112 and 212, retaining plates 113 and 213, and folded plate portions 114 and 214. .

  The receiving plate portions 111 and 211 project the beam body 12 and the beam body mounting portion 22, have a height that matches the headboard portion 01, and a width that is sufficient to suppress the headboard portion 01.

  The mounting plate portions 112 and 212 are extended from the upper ends of the receiving plate portions 111 and 211 in the backward direction, and are sized so as to cover the upper surface of the headboard concrete 05 of the headboard portion 01 within a sufficient range. is there.

  The retaining plates 113 and 213 are extended backward from the lower ends of the receiving plates 111 and 211, and are equal to or less than the distance from the front surface of the H-shaped steel 04 of the headboard portion 01 to the front surface of the sheet pile steel plate 02. The projecting length is equal to or shorter than the length over which the head portion projects from the side wall surface.

  The folded-back plate portions 114 and 214 are formed with appropriate widths on the left and right sides by providing slits 115 and 215 from the rear edge at both sides of the retaining plate portions 113 and 213.

  The beam body mounting portion 22 of the receiving member 2 is provided with a length projecting appropriately on the front surface of the mounting body 21 and has a semi-cylindrical shape corresponding to the cross-sectional shape of the beam body 12, and the flange portions 221 project in a wing-like manner on both sides. It is set. Further, the holding crown portion 23 has a semi-cylindrical shape to be crowned on the beam body 12, and is provided with a folded holding portion 231 that sandwiches the flange from above and below on both sides.

  Thus, the beam is constructed using the members 1 and 2 in the irrigation channel 03 to be repaired, and the sheet pile steel plates 02 on both sides of the irrigation channel to be repaired are inclined to the channel side by the ground back pressure. In this case, a beam is constructed by extending the distance between both banks as much as possible at the time of construction by interposing a jack between the head portions 01.

  On the contrary, when the space between the headboard parts 01 on both sides of the waterway is widened or narrow, even when the state is stable, the cutting beams are attached in that state.

  First, the beam body 12 is cut to a predetermined length in accordance with the width of the cross bank 01 in the water channel 03. Then, the mounting members 11 and 21 of the beam member 1 and the receiving member 2 are mounted on the headboard unit 01 on the both bank headboard unit 01, respectively.

  The mounting bodies 11 and 21 are mounted on the headboard part 01 by placing the mounting plate parts 112 and 212 on the upper surface of the headboard concrete 05 of the headboard part 01 and attaching the retaining plate parts 113 and 213 to the headboard part 01. The folded plate portions 114 and 214 formed narrowly by the slits 115 and 215 are folded back to the lower surface of the lower edge of the H-shaped steel 04.

  Simultaneously with the mounting of the mounting bodies 11 and 21 to the headboard part 01, the beam body 12 is mounted on the beam body mounting part 22, and the holding crown part 23 is placed so that the tip abuts against the receiving plate part 211. Install.

  The holding crown portion 23 is attached by covering the holding crown portion 23 on the upper surface of the beam body 12 at a position disengaged from the beam body placing portion 22 and moving it in the direction of the beam body placing portion 22 as it is. Since the portion 231 sandwiches the flange portion 221 up and down, when the folded holding portion 231 is connected to the flange portion 221 by caulking or spot welding, the holding crown portion 23 is easily connected to the beam placing portion 22. .

  Therefore, both mounting bodies 11 and 21 are mounted on the headboard part 01, and the beam body 12 is constructed between them, so that a new cutting beam is constructed. In particular, the beam body 12 is cut by cutting. The length can be adjusted, so that even if there is a displacement in the width of the irrigation channel 03, it can be handled.

  In addition, the beam body 12 is not fixed between the two banks, and is constructed such that the tip of the beam body 12 is installed in contact with the front surface of the receiving plate portion 211 of the mounting body 21 of the receiving member 2. It can withstand the pressure applied between them (back pressure from the ground). In addition, when a force that expands between both banks is applied due to an earthquake or the like, the tip side portion of the beam body 12 moves within a cylindrical shape formed by the beam body placing portion 22 and the holding crown portion 23, Even when the width varies, no external force is applied between the head portion 01 and the mounting bodies 11 and 21, and the constructed beam section is not damaged.

  In addition, although the irrigation channel which uses the sheet pile steel plate 02 was demonstrated as an object example as the said embodiment, the beam member based on this invention is applicable to all the irrigation channels provided with the coping part 01, and the coping part 01 In the irrigation channel in which the head portion 01 is made only of head portion concrete without using the H-shaped steel 04, the return plate portions 114 and 214 are simply not turned back and can be applied as they are.

  FIGS. 6 to 8 show a second embodiment. This embodiment is an example in which the holding connection body of the receiving member 2 is formed by the cylindrical portion 24.

  Similar to the beam member 1 of the first embodiment, the beam member 1a includes a mounting body 11 and a beam body 12 longer than the water channel width projecting from the front surface of the mounting body 11.

  The receiving member 2 a includes a mounting body 21 and a cylindrical portion 24 that projects from the front surface of the mounting body 21.

  The mounting bodies 11 and 21 are provided with receiving plate portions 111 and 211 similar to those of the first embodiment, and mounting plate portions 112 and 212, and on the upper surface of the mounting plate portions 112 and 212, a headboard portion 01 is provided. Anchor pin through-holes 116 and 216 are provided.

  The cylindrical portion (holding connecting body) 24 of the receiving member 2a is provided with a suitable length on the front surface of the mounting body 21, and has an inner diameter corresponding to the cross-sectional shape of the beam body 12.

  Thus, a beam is constructed by using the members 1a and 2a in the irrigation channel 03 to be repaired, and the sheet pile steel plates 02 on both sides of the irrigation channel to be repaired are inclined to the channel side by the ground back pressure. In this case, as in the case of the first example, jacks are interposed between the headboard parts 01 so that the construction between the two banks is expanded as much as possible at the time of construction, and the cut beam construction work is performed.

  The length of the beam body 12 is cut in accordance with the width of the both bank head portions 01 in the irrigation channel 03, the beam body 12 is inserted into the cylindrical portion 24, and the beam member 1a and the receiving member 2a are connected (see FIG. 7). In this state, it is inserted as it is between the headboard portions 01 of the irrigation channel 03, and the placing plate portions 112 and 212 are placed on the upper surface of the headboard concrete 05 of the headboard portion 01.

  The beam members 1a and 2a connected by the above-described mounting operation are erected in a non-fixed state with respect to the headboard portion 01, and then the anchor pin 06 is driven into the headboard concrete from the anchor pin through holes 116 and 216, The mounting bodies 11 and 21 are fixed to the headboard part 01.

  Therefore, both mounting bodies 11 and 21 are fixed to the headboard part 01, and the beam body 12 is constructed between them, and a new cut beam is constructed. In particular, the length of the beam body 12 can be adjusted by cutting, so that even if the width of the irrigation channel 03 is displaced, it is possible to cope with it.

  In addition, the beam body 12 is not fixed between both banks, and the front end surface of the beam body 12 is the tube portion 24 in a state where the tip of the beam body 12 is inserted into the tube portion 24 of the mounting body 21 of the receiving member 2. Since it is constructed in contact with the bottom surface (front surface of the mounting body 21), it can sufficiently withstand the pressure (back pressure from the ground) applied between both banks. In addition, when a force that expands between the two banks is applied due to an earthquake or the like, the tip side portion of the beam body 12 moves in the cylindrical portion 24, and the headboard portion 01 and the mounting body 11, No external force is applied between them and a strong force is not applied to the anchor pin 06, and the constructed beam section is not damaged.

  In the second embodiment, the holding connection body is the cylindrical portion 24 to which the beam body 12 is mounted. However, the beam body 12 is cylindrical, the holding connection body is a rod-shaped portion, and the rod-shaped portion is a cylindrical beam. You may make it mount | wear with the front-end | tip part of a body. As for the retaining structure, the structure shown in the first embodiment may be added.

  FIGS. 9 and 10 show a third embodiment. In this embodiment, the beam member 1b is composed of an independent beam body 12 and a mounting body 11a having a holding connection body (tubular portion) 13, The mounting body 11a has the same structure as the receiving member 2a of the second embodiment.

  Thus, for the irrigation channel 03 to be repaired, the length of the beam body 12 is cut in accordance with the width of the both bank headboard portions 01 in the irrigation channel 03 in the same manner as in the first and second embodiments. It inserts in the cylinder part 13 of the beam member 1b, and the cylinder part 24 of the receiving member 2a, and it is set as the state which the beam member 1a and the receiving member 2a connected. In this state, it is inserted as it is between the headboard portions 01 of the irrigation channel 03, and the placing plate portions 112 and 212 are placed on the upper surface of the headboard concrete 05 of the headboard portion 01.

  The beam members 1b and 2a connected by the above-described mounting operation are erected in a non-fixed state with respect to the headboard part 01, and then the anchor pin 06 is driven into the headboard concrete from the anchor pin through holes 116 and 216, The mounting bodies 11a and 21 are fixed to the headboard part 01.

  Therefore, both mounting bodies 11a and 21 are fixed to the headboard part 01, and the beam body 12 is constructed between them, so that a new cut beam is constructed. In particular, the length of the beam body 12 can be adjusted by cutting, so that even if the width of the irrigation channel 03 is displaced, it is possible to cope with it.

  In particular, the beam body 12 is an independent member and is connected to the mounting bodies 11a and 21 in an unfixed state and is not fixed between the two banks. It can sufficiently withstand the applied pressure (back pressure from the ground), and even when a force that expands between both banks due to an earthquake or the like is applied, the tip side portion of the beam body 12 is within the cylindrical portion 24. Even when the width of the two banks moves, no external force is applied between the headboard part 01 and the mounting bodies 11 and 21, no strong force is applied to the anchor pin 06, and the constructed beam section is damaged. Does not occur.

1, 1a, 1b Beam member 11, 11a Mounting body 111 Receiving plate portion 112 Mounting plate portion 113 Retaining plate portion 114 Folding plate portion 115 Slit 116 Anchor pin through-hole 12 Beam body 13 Tube portion (holding connection body)
2,2a receiving member 21 mounting body 211 receiving plate portion 212 mounting plate portion 213 retaining plate portion 214 folding plate portion 215 slit 216 anchor pin through hole 22 beam body mounting portion (holding connection body)
221 buttock 23 holding crown part (holding connected body)
231 Folding clamping part 24 Tube part (holding connection body)
01 Headboard 02 Sheet pile steel plate 03 Water channel 04 H-shape steel 05 Headwood concrete 06 Anchor pin

Claims (8)

  A mounting body provided with a receiving plate portion to be brought into contact with the front surface of the head portion of the irrigation channel to be repaired, and a mounting plate portion extending in the rear direction from the upper end of the receiving plate portion, and projecting from the front surface of the mounting body A beam member having a beam body longer than the width of the irrigation channel, a mounting body similar to the mounting body of the beam member, and a holding member that can be connected unfixed by holding the front end of the beam body on the front surface of the mounting body A irrigation repairing beam member composed of a receiving member provided with a coupling body.   The beam member for irrigation channel repair according to claim 1, wherein the beam member is constituted by a beam body and a mounting body including a holding connection body that can hold the tip end of the beam body in an unfixed manner.   2. The holding coupling body is constituted by a beam body placing portion protruding from a mounting body with an appropriate length, and a holding crown portion that is crowned on the mounted beam body front end portion and coupled to the beam body placing portion. Or a beam member for repairing a water channel according to 2;   The beam body mounting part has a semi-cylindrical shape corresponding to the cross-sectional shape of the beam body, and ribs projecting from both sides, and the holding body is a semi-cylindrical shape that covers the beam body and is The irrigation repairing beam member according to claim 3, wherein a folded holding part is provided so as to project the part from above and below.   The irrigation canal repair according to claim 1 or 2, wherein the holding coupling body is configured by a tube portion or a rod-like portion that is attached to the tubular beam body and is provided with an appropriate length projecting from the attachment body. Cut beam member.   6. The irrigation channel repair according to claim 1, wherein each mounting body includes a retaining plate portion that extends downward from the lower end of the receiving plate portion to a length extending from the side wall surface of the irrigation channel so that the head portion projects. Cut beam member.   7. The irrigation channel repairing beam member according to claim 6, wherein a slit plate is provided on both sides of the retaining plate portion from the rear edge to form a folded plate portion having an appropriate width.   The beam member for repairing a water channel according to any one of claims 1 to 7, wherein a mounting plate portion of both mounting bodies is provided with a through hole for an anchor pin to the headboard portion.

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