JP2008190248A - Water channel covering structure for ditch - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a water channel covering structure for a ditch, which prevents the formation of a gap between an upper end face of a side wall of the ditch and a lower face of a horizontal rim of a support frame, to thereby prevent cracking in a concrete layer. <P>SOLUTION: According to the water channel covering structure, each of the right and left support frames 8 is formed of an erect rim 6 having the horizontal rim 7 connected onto at least one side thereof, and an external edge of the horizontal rim 7 is arranged close to an inside surface 11a of the side wall 4 of the ditch 1, followed by mounting both right and left edges of a beam 10 connecting between the right and left support frames 8, on the upper end faces of the right and left side walls 4 of the ditch 1. Further the concrete layer 18 laid on an upper portion of the periphery of the ditch 1 is formed so as to be continuous between the horizontal rim 7 of the support frame 8 and the upper end face of the side wall 4 of the ditch 1 to which the external edge of the horizontal rim 7 is closely adjacent. Thus the concrete layer 18 is connected to the upper end face of the side wall 4 of the ditch 1, and therefore formation of a gap p (see Fig. 14) is prevented. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a water passage covering structure for a groove that covers an upper portion of a groove such as a drainage groove so that water can flow.

  A groove constructed using a groove member whose upper part is widely opened, such as a U-shaped groove block, has conventionally been constructed from a grating lid in which strip-shaped metal ridges are assembled in a grid pattern in order to ensure water permeability. The upper opening was shielded by the water channel cover. However, in recent years, the number of colored paved road surfaces on which decorative tiles and decorative blocks have been laid has increased, and groove covers with excellent design that harmonize with such colored paved road surfaces have been required. Various groove lids that can be filled with pavement materials such as decorative tiles and decorative blocks are provided.

  Such a groove lid is provided with a lid body formed in a box frame shape, and the box frame lid body is filled with pavement materials such as decorative tiles and decorative blocks. The extra part of the decorative tiles and makeup blocks that protrude from the lid body must be excised so that the decorative tiles and makeup blocks fit in the body, so that it takes time for processing and the lid body even after construction. Since the joints of the lid body and the lid receiving frame are exposed between the pavement material filled inside and the pavement material laid on the upper surface around the groove, the joints of the design of the color pavement road surface are provided by the joints. There was a problem of being divided.

On the other hand, a drainage groove structure having a configuration in which such problems do not occur has also been proposed. As shown in FIG. 13, this is a horizontal edge c placed on both side walls b, b of a groove member a having a substantially U-shaped cross section and extending toward the center of the groove j. And a pair of left and right support frames e, e, each having a vertical edge d erected at the inner end of the horizontal edge c, and a beam member f connecting the both support frames e, e. A water flow groove lid g is disposed in a water flow portion formed between the vertical edges d and d of the support frames e and e (see, for example, Patent Document 1). In such a configuration, a pavement material h such as a decorative tile or a decorative block laid around the groove via a concrete layer m is attached to a vertical edge d on the horizontal edges c and c of both support frames e and e. Because it can be laid continuously until the end, cut off the excess part of the decorative tile and the decorative block that protrudes from the inside of the lid body like the groove cover for color paving using the conventional box frame-like lid body. It is not necessary, and the joints of the support frames e and e are not exposed at the portions corresponding to the side walls b and b of the laid pavement h, so that the design continuity of the color paved road surface is not impaired. There are advantages.
JP 2004-169375 A

  By the way, in the construction in which the groove members a made up of U-shaped groove blocks are arranged in a line and buried in the ground, the upper end surfaces of both side walls b, b of each groove member a must be completely matched to the construction setting level. Is extremely difficult, and it is inevitable that a dimensional error occurs in which the upper end surfaces of the side walls b and b are slightly shifted up and down with respect to the construction setting level. For this reason, in the configuration in which the horizontal edges c, c of the support frames e, e are placed on both side walls b, b of the groove member a, as in the configuration disclosed in Patent Document 1 described above, As shown in FIG. 14, a gap p of about several mm to 10 mm is generated between the upper end surface of the side wall b and the lower surface of the horizontal edge c due to the dimensional error. Therefore, the concrete to be placed when the pavement material h is constructed is not completely filled in the gap p, and the gap p remains after the construction is completed. When the gap p remains between the upper end surface of the side wall b and the horizontal edge c of the support frame e as described above, it is laid on the support frames e and e via the concrete layer m. When a heavy object such as a truck passes on the pavement h, there is a problem that the concrete layer m on the gap p sinks due to the load and cracks are generated in the concrete layer m.

  In addition, in order to prevent the occurrence of cracks as described above, a core material k (see FIG. 13) made of reinforcing bars or the like disposed around the upper portion of the groove member a is attached to the horizontal edges c, c is extended to the top and welded to the vertical edges d and d, the concrete is cast, and the concrete layer m containing the core material is fixed on the horizontal edges c and c. The strength of the layer m is increased. However, it is troublesome and expensive to arrange the core material k composed of reinforcing bars or the like up to the horizontal edges c and c at the construction site and to weld the tip portions to the vertical edges d and d one by one. In addition, the construction period is long.

  The present invention does not generate a gap between the upper end surface of the side wall of the groove and the lower surface of the horizontal edge of the support frame, thereby preventing the occurrence of cracks in the concrete layer, while the beam member, It is an object of the present invention to provide a water passage covering structure for a groove that is capable of withstanding a large load such as a truck by increasing the bonding strength with a horizontal edge of a support frame.

  The present invention comprises left and right support frames comprising rising edges with at least one horizontal edge coupled to each other, and the rising edges of the both support frames are arranged to face each other at a predetermined interval above the groove. A plurality of beams in which a water flow portion is formed between the edges, the upper part of the remaining groove is covered by the horizontal edge of the support frame, and both support frames are arranged at predetermined intervals in the longitudinal direction of the support frame A water passage covering device for a groove connected by a member, wherein each beam member is disposed in contact with the upper surface of the horizontal edge of the support frame, and the outer end of the horizontal edge is the groove A concrete layer that is disposed close to the inner surface of the side wall, and that both left and right ends of each beam member are mounted on the upper end surfaces of the left and right side walls of the groove, respectively, and is laid on the upper periphery of the groove On the horizontal edge of the support frame and on the side wall of the groove adjacent to the outer edge of the horizontal edge. A water flow covering structure of the groove path, characterized in that over the end face is formed in a continuous shape.

  Here, when the rising edges of both support frames are opposed to each other at the approximate center of the upper part of the groove, it is preferable to form an insertion port through which the beam member is inserted. Further, when the rising edges of both support frames are opposed to the upper side of the groove at a position biased, at least the other rising edge facing the rising edge located on one side wall constituting the groove is used. It is preferable to form an insertion port through which the beam member is inserted. Furthermore, it is preferable that each beam member is firmly joined to the upper surface of the horizontal edge by a joining means such as welding while being in contact with the upper surface of the horizontal edge of the support frame. Thereby, while the contact state of each beam member which contact | abuts on the upper surface of the horizontal edge of a support frame is hold | maintained, the position shift of a beam member and a support frame can be prevented. In addition, a fixing rod is suspended downward from both ends of the beam member along the outer surface of the side wall of the groove, and a fixing screw whose tip can be pressed against the outer surface of the groove is outwardly attached to the fixing rod. It is preferable that the beam member is fixed to the side wall of the groove through the tightening action of the fixing screw.

  In addition, the beam member is inserted into an insertion port formed at a rising edge of a support frame having a horizontal edge, and a connecting edge raised upward from the outer end of the horizontal edge is joined to the beam member. The proposed configuration is proposed.

  Here, it is preferable that the connection edge raised upward from the outer end of the horizontal edge is firmly joined to the beam member by joining means such as welding.

  As described above, the present invention includes left and right support frames composed of rising edges in which at least one of the horizontal edges is coupled, and the rising edges of the both support frames are arranged opposite to each other at a predetermined interval above the groove. A water passage is formed between the two rising edges, the upper edge of the remaining groove is covered by the horizontal edge of the support frame, and the two support frames are arranged at predetermined intervals in the longitudinal direction of the support frame. A water passage covering device for a groove that is connected by a plurality of beam members, each beam member being disposed in contact with the upper surface of the horizontal edge of the support frame, and outside the horizontal edge. The ends are arranged close to the inner surface of the side wall of the groove, and the left and right ends of each beam member are mounted on the upper end surfaces of the left and right side walls of the groove, respectively, The concrete layer to be laid is close to the horizontal edge of the support frame and the outer edge of the horizontal edge. Since the water passage covering structure of the groove is formed continuously over the upper end surface of the side wall of the groove, the concrete layer laid on the upper periphery of the groove is directly applied to the upper end surface of the side wall of the groove. Therefore, the conventional gap p (see FIG. 14) generated when the horizontal edge of the support frame is placed on the upper end surface of the side wall of the groove is not generated. It is possible to reliably prevent the occurrence of cracks in the concrete layer due to the concrete layer sinking due to the load.

  On the other hand, the beam member is inserted into the insertion opening formed in the rising edge of the support frame provided with the horizontal edge, and the connecting edge raised upward from the outer end of the horizontal edge is joined to the beam member. In the configuration, the inner end of the support frame is supported by the beam member inserted through the insertion port of the rising edge, so when a load is applied to the horizontal edge from above, the upper edge of the insertion port is centered. As a result, a moment force is generated to rotate the outer edge of the horizontal edge downward, but the connecting edge raised upward from the outer edge of the horizontal edge is joined to the beam member, The joint strength at the outer edge of the edge is increased, and the robustness that can resist the moment force can be obtained.

A first embodiment of the present invention will be described below with reference to FIGS.
As shown in FIG. 2, the groove 1 includes a plurality of groove members 2 formed of a U-shaped groove block formed in a substantially U-shaped cross section by a bottom wall 3 and left and right side walls 4, 4. It is constructed by embedding in a row at the depth position.

  The water passage covering structure for a groove according to the present invention includes a water passage covering device 5 for a groove that covers the upper opening of the groove 1 so as to allow water to pass therethrough. As shown in FIG. 1, the water passage covering device 5 for a groove of the first embodiment includes a pair of left and right support frames 8, 8 in which a horizontal edge 7 is coupled to a vertical rising edge 6. The support frames 8, 8 have their rising edges 6, 6 facing each other at a predetermined interval in the approximate center of the upper part of the groove 1, and a water passage 9 is formed between the rising edges 6, 6. ing. Further, the outer ends of the horizontal edges 7 and 7 of both the support frames 8 and 8 are disposed close to the inner side surfaces 11a and 11a of the left and right side walls 4 and 4 of the groove 1 so that a water passage portion is provided. The upper openings of the grooves 1 other than 9 are covered with both horizontal edges 7 and 7 except slightly on the left and right side walls 4 and 4. Both support frames 8 and 8 are made of a plate-like metal material made of steel or stainless steel, and the length thereof is a plurality of groove members 2 in a single row as shown in FIG. It is a predetermined length in the longitudinal direction. As shown in FIG. 1, the rising edge 6 and the horizontal edge 7 of each support frame 8 may be formed by bending a single metal plate into an L-shaped cross section. It is also possible to join the metal plates so as to have an L-shaped cross section by welding. Further, as shown in FIG. 4, shielding edges 14, 14 that hang down along the inner side surfaces 11 a, 11 a of the side walls 4, 4 of the groove 1 are provided at the outer ends of the horizontal edges 7, 7 of the support frames 8, 8. You may be coupled. Accordingly, when the water passage covering device 5 for a groove is horizontally disposed on the groove 1 constructed with a water gradient, the upper end surfaces of the side walls 4 and 4 of the groove 1 The gaps in the vertical direction that are gradually formed between the lower edges of the outer edges of the horizontal edges 7 and 7 can be shielded by the shielding edges 14 and 14.

  As shown in FIG. 2, the left and right support frames 8, 8 are connected by a plurality of beam members 10 arranged at predetermined intervals in the longitudinal direction of the support frames 8, 8. Each beam member 10 is made of a metal square pipe having excellent strength, and the length thereof is a predetermined length that protrudes slightly outward from the outer surfaces 11b and 11b of the left and right side walls 4 and 4 constituting the groove 1. It has become. Each beam member 10 is disposed in contact with the upper surfaces of the horizontal edges 7 and 7 of the support frames 8 and 8, and is inserted into insertion holes 12 and 12 formed in the rising edges 6 and 6 of the support frames 8 and 8. In this state, the horizontal edges 7 and 7 or the horizontal edges 7 and 7 and the mouth edges of the insertion openings 12 and 12 are firmly joined by welding. The left and right ends of each beam member 10, in which the left and right support frames 8, 8 are immovably connected, are directly mounted on the upper end surfaces of the left and right side walls 4, 4 constituting the groove 1. .

  Further, a metal water-permeable covering member 13 is disposed in the water-permeable portion 9 formed between the rising edges 6 and 6. The metal water passage covering member 13 is made of a steel, stainless steel or cast iron grating lid, and is detachably mounted on the upper surface of each beam member 10 exposed to the water passage portion 9. In addition to the grating lid, the metal water-permeable covering member 13 may use, for example, a cover having a U-shaped cross section provided with a top plate portion having a large number of small holes. Further, the lid body may be formed as a band plate shape having only a top plate portion in which a large number of small holes are formed, and may be joined and welded to the upper inner surface upper ends of the left and right rising edges 6 and 6, It is also possible to integrally form the lid made only of the top plate and the left and right rising edges 6 and 6. Alternatively, the metal water-permeable covering member 13 formed in a grating shape may be integrally joined to both the rising edges 6 and 6 by welding in a state of being disposed between the left and right rising edges 6 and 6. Further, the water flow portion 9 is formed so as to be narrower than the illustrated one by placing the rising edges 6 and 6 of the support frames 8 and 8 close to each other so as to face each other. It is also possible to adopt a configuration in which 13 is not used.

  Fixing rods 16 joined by welding are suspended downward from both ends of each beam member 10 along the outer surfaces 11b and 11b of the side walls 4 and 4 of the groove 1, respectively. Fixing screws 17 whose tips are press-contacted to the outer surfaces 11b and 11b of the side walls 4 and 4 of the groove 1 are respectively screwed into the flange 16 from the outside. Then, each beam member is operated through its tightening action by screwing each fixing screw 17 in the tightening direction to press-contact the distal end portion of each fixing screw 17 to the outer surfaces 11b, 11b of the side walls 4, 4. 10 is fixed to the side walls 4 and 4 of the groove 1.

  In such a fixed state, the concrete layer 18 laid on the upper periphery of the groove 1 is, as shown in FIG. 3, on the horizontal edges 7, 7 of the left and right support frames 8, 8 and the horizontal edge 7. , 7 are formed continuously over the upper end surfaces of the side walls 4, 4 of the adjacent groove 1. The concrete layer 18 and the decorative tile 19 constitute a pavement material 20 laid in the upper part of the periphery of the groove 1. The decorative tile 19 is disposed on the surface layer of the concrete after the concrete is placed. It is made to stick on the bonded concrete layer 18.

  Here, at the time of construction, after placing the water passage covering device 5 for grooves on the side walls 4, 4 of the groove 1, each beam member 10 is connected via a tightening action by a screwing operation of each fixing screw 17. Is fixed to the side walls 4 and 4 of the groove 1. In this fixed state, the concrete that becomes the concrete layer 18 after solidification extends from the periphery of the groove 1 to the upper ends of the side walls 4 and 4 of the groove 1 and the horizontal edges 7 and 7 of the support frames 8 and 8. And placing at a predetermined thickness. Thereby, concrete is directly cast on the upper end surfaces of the side walls 4 and 4 of the groove 1, and the concrete layer 18 after consolidation is directly fixed to the upper end surfaces of the side walls 4 and 4 of the groove 1. Become. In addition, after fixing each beam member 10 to the side walls 4 and 4 of the groove 1, a gap 15 formed between the outer ends of the horizontal edges 7 and 7 and the inner side surfaces 11 a and 11 a of the side walls 4 and 4 of the groove 1. Can be prevented from falling through the gaps 15 and 15 by shielding with butyl rubber tape or solid concrete.

  In such a configuration, the concrete layer 18 laid on the upper periphery of the groove 1 can be directly fixed to the upper end surfaces of the side walls 4, 4 of the groove 1. , 7 does not occur in the conventional gap p (see FIG. 14) which is generated by placing the grooves 7 on the upper end surfaces of the side walls 4 and 4 of the groove 1, so that the concrete layer 18 on the gap p sinks due to the load. It is possible to reliably prevent the occurrence of cracks in the concrete layer 18 due to the insertion.

  Further, in this first embodiment, the left and right support frames 8 and 8 are assumed to have the horizontal edges 7 and 7 coupled to the rising edges 6 and 6, respectively, and the rising edges 6 and 6 of the both support frames 8 and 8 are combined. Since the water flow portion 9 formed between the rising edges 6 and 6 is positioned substantially at the center of the upper portion of the groove path 1 by making the channel face each other at the approximate center of the upper portion of the groove path 1. A water passage portion 9 narrower than the opening width of the groove 1 can be formed in the approximate center of the upper portion of the groove 1.

  FIG. 5 shows a second embodiment, which is opposed to a position where the rising edges 6 and 6 of both support frames 8 and 8 in the first embodiment are biased to the upper side portion of the groove 1. By doing so, the water flow portion 9 formed between the rising edges 6 and 6 is positioned on the upper side portion of the groove 1. Here, the horizontal edge 7 of one support frame 8 (right side in the figure) is wide, and the outer end of the wide horizontal edge 7 is arranged close to the inner side surface 11a of one side wall 4 (right side in the figure). Thus, the upper opening of the groove 1 other than the water passage 9 is covered with the horizontal edge 7 except for the side wall 4 (right side in the figure). The other support frame 8 (left side in the figure) consists of only the rising edge 6, and the rising edge 6 is disposed on the outer end of the other side wall 4 (left side in the figure). The rising edge 6 is formed with a U-shaped insertion opening 12 having an open lower edge, and the beam member 10 inserted into the insertion opening 12 is firmly joined to the opening edge of the insertion opening 12 by welding. ing. The left and right end portions of each beam member 10 are directly mounted on the upper end surfaces of the left and right side walls 4 and 4 constituting the groove 1. Other configurations are the same as those of the first embodiment, and the same parts are denoted by the same reference numerals and redundant description is omitted.

  Even in such a configuration, as shown in FIG. 6, the concrete layer 18 laid on the upper periphery of the groove 1 is directly fixed to the upper end surface of one side wall 4 (right side in the drawing) of the groove 1. Therefore, the conventional gap p (see FIG. 14) generated when the horizontal edge 7 of the support frame 8 is placed on the upper end surface of the side wall 4 of the groove 1 does not occur, and thus the gap p It is possible to reliably prevent the occurrence of cracks in the concrete layer 18 due to the concrete layer 18 sinking due to the load.

  Moreover, in this 2nd Example, the water flow part 9 can be formed in the position biased to the most side part of the upper part of the groove 1. As a result, when the groove 1 is a side groove, or when there is a rising portion 21 such as a wall or a fence on the outer end side of the groove 1, the pavement 20 laid on the road side is made wider than the support frame 8. Since it is only necessary to lay it on the horizontal edge 7 in a continuous manner, there is an advantage that the laying work of the pavement 20 on the outer end side of the road can be made unnecessary, and the construction becomes easy.

  FIG. 7 shows a third embodiment. In the third embodiment, connecting edges 22 and 22 that rise upward are formed at the outer ends of the support frames 8 and 8 in the first embodiment. The edges 22 and 22 are joined to the beam member 10. Here, U-shaped notch grooves 23 and 23 into which the beam member 10 can be inserted are formed in the connecting edges 22 and 22, and the beam member 10 is inserted in the notch grooves 23 and 23. 10 and the cutout grooves 23 and 23 are firmly joined by welding. Other configurations are the same as those of the first embodiment, and the same parts are denoted by the same reference numerals and redundant description is omitted.

  In such a configuration, since the inner ends of the support frames 8 and 8 are supported by the beam member 10 inserted into the insertion ports 12 and 12 of the rising edges 6 and 6, the horizontal edges 7 and 7 are loaded from above. Is applied, a moment force is generated to rotate the outer ends of the horizontal edges 7 and 7 downward about the upper edges of the insertion openings 12 and 12, but the outer ends of the horizontal edges 7 and 7 are generated. By connecting the connecting edges 22 and 22 raised upward from the beam member 10 to each other, the bonding strength of the outer ends of the horizontal edges 7 and 7 is increased, and the robustness that can resist the moment force is obtained. be able to.

  In addition, this invention is not limited to the structure of each Example mentioned above, A various change is possible in the range which does not deviate from the summary of this invention. For example, instead of the metal square pipe, the beam member 10 can be constituted by a vertical metal strip having a predetermined thickness, as shown in FIGS. Higher strength can be obtained compared to pipes. Further, as shown in FIG. 10, the rising edges 6, 6 of the left and right support frames 8, 8 may be made higher than those shown in FIG. Thereby, it can respond to the construction which forms the thick concrete layer 18 on the horizontal edges 7 and 7. Further, in this case, the beam member 10 made of a metal strip plate is integrally formed with the protruding portion 24 protruding upward in the water flow portion 9, thereby forming a grating lid or the like at the upper edge of the protruding portion 24. The metal water-permeable covering member 13 can be supported. Further, as shown in FIG. 11, a projecting portion 25 projecting downward is integrally formed on the beam member 10 made of a metal strip, and the lower edge of the projecting portion 25 is brought into contact with the upper surfaces of the horizontal edges 7 and 7. You may make it join the protrusion part 25 and the horizontal edges 7 and 7 firmly by welding in the state contacted. Thereby, it is not necessary to form the two types of support frames 8 and 8 with the rising edges 6 and 6 being high and low, and only one type of the support frames 8 and 8 with the rising edges 6 and 6 formed high is used for concrete. Both the construction for forming the layer 18 thick and the construction for forming the thin layer 18 can be handled. Further, as shown in FIG. 12, a projecting portion 24 projecting upward in the water flow portion 9 and a projecting portion 25 projecting downward are integrally formed on the beam member 10 made of a metal strip. May be. Thereby, the rigidity of the beam member 10 is increased, and the bending of the beam member 10 due to a load from above can be reliably prevented.

It is a longitudinal cross-sectional view of the water-flow covering structure of the groove provided with the water-flow covering apparatus 5 for grooves concerning 1st Example. It is an external appearance perspective view of the water-flow covering apparatus 5 for groove paths same as the above. It is a longitudinal cross-sectional view which shows the construction state of the water flow covering structure of a groove path same as the above. It is a longitudinal cross-sectional view of the water-flow covering structure of the groove provided with the water-flow covering apparatus for grooves 5 in which the shielding edges 14 and 14 are coupled to the outer ends of the horizontal edges 7 and 7. It is a longitudinal cross-sectional view of the water-flow covering structure of the groove provided with the water-flow covering apparatus 5 for grooves concerning 2nd Example. It is a longitudinal cross-sectional view which shows the construction state of the water flow covering structure of a groove path same as the above. It is a longitudinal cross-sectional view of the water-flow covering structure of the groove provided with the water-flow covering apparatus 5 for grooves concerning 3rd Example. It is a top view of the waterway covering apparatus 5 for grooves provided with the beam member 10 which consists of metal strips. It is a side view of the edge part of the water-flow covering apparatus 5 for groove paths same as the above. It is a longitudinal cross-sectional view of the water-flow covering structure of the groove provided with the water-flow covering apparatus 5 for grooves where the rising edges 6 and 6 are high. It is the longitudinal cross-sectional view of the water-flow covering structure of a groove provided with the water-flow covering apparatus 5 for grooves formed integrally with the beam member 10 which consists of metal strips, and the protrusion part 25 protruded below. A water passage covering for a groove comprising a water passage covering device for a groove 5 in which a protruding portion 24 protruding upward and a protruding portion 25 protruding downward are integrally formed on a beam member 10 made of a metal strip. It is a longitudinal cross-sectional view of a structure. It is a longitudinal cross-sectional view which shows the conventional drain groove structure. It is an enlarged view which shows the problem of a conventional structure.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Groove 4 Side wall 5 Water channel covering apparatus 6 Groove edge 7 Horizontal edge 8 Support frame 9 Water flow part 10 Beam member 11a Inner side surface 12 Insertion port 18 Concrete layer 22 Connection edge p Clearance

Claims (2)

At least one of the left and right support frames is formed of rising edges coupled with horizontal edges, and the rising edges of the two support frames are opposed to each other at a predetermined interval in the upper part of the groove and pass between the rising edges. A water portion is formed, the upper portion of the remaining groove is covered by the horizontal edge of the support frame, and both the support frames are connected by a plurality of beam members arranged at predetermined intervals in the longitudinal direction of the support frame. Comprising a water passage covering device for a groove,
Each beam member is disposed in contact with the upper surface of the horizontal edge of the support frame, and the outer edge of the horizontal edge is disposed close to the inner surface of the side wall of the groove, and the left and right ends of each beam member. Are placed on the upper end surfaces of the left and right side walls of the groove, and the concrete layer laid on the upper periphery of the groove is a groove on the horizontal edge of the support frame and the outer edge of the horizontal edge close to each other. A water channel covering structure for a groove, characterized in that it is formed continuously over the upper end surface of the side wall of the groove.   The beam member is inserted through an insertion port formed at the rising edge of the support frame having a horizontal edge, and a connecting edge raised upward from the outer end of the horizontal edge is joined to the beam member. The water channel covering structure for a groove according to claim 1.

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