JP4869844B2 - Waterway building block and waterway structure using the same - Google Patents

Description

  The present invention relates to a block for building a water channel that is useful when building a water channel structure including a water channel having a gradient, and a water channel structure using the block.

  FIG. 1 shows an example of a water channel structure provided with a water channel WW having a gradient. Have. 1 indicates a horizontal plane, and the actual upper surface gradient Gu and channel gradient Gw are each about several percent.

  The water channel structure 10 is constructed by connecting a plurality of concrete blocks (hereinafter simply referred to as blocks) 11 having the shape shown in FIG. 2 so that the flow channels 11a are continuous with each other.

  Among the plurality of blocks 11 shown in FIG. 1, the central three blocks 11 have the same vertical dimension d of the flow channel 11a, and the thickness tb of the bottom plate portion 11b is also the same and constant. However, the upper surface height H gradually decreases in the right direction in the drawing so that the upper surfaces are connected with a predetermined gradient, and the thickness tc of the top plate portion 11c of each block 11 conforms to the upper surface gradient Gu. Each of them gradually decreases in the right direction in the figure.

  Moreover, two blocks 11 on both sides of the plurality of blocks 11 shown in FIG. 1 are different from the three blocks 11 in the center in that the vertical dimension d of the flow channel 11a is different and the average value of the upper surface height H is different. The shape is different. Although illustration of the block following the two blocks 11 on both sides is omitted in FIG. 1, a plurality of blocks having similar shapes to the respective blocks 11 are also connected to the two blocks 11 on both sides.

As shown in FIG. 1, the plurality of blocks 11 that construct the water channel structure 10 are respectively installed in a posture inclined downward to the left in the figure, and the water channel gradient Gw is formed by the bottom of the water channel 11 a that continues to the left downward. The upper surface gradient Gu is formed by the upper surface of each block 11 that continues to the right.
JP-A-6-254832

  In the water channel structure 10 described above, in order to obtain a water channel WW having a predetermined gradient Gw, the average value of the thickness tc of the top plate portion 11c is different and the thickness tc is gradually decreased along the water flow channel 11a. This is used as the block 11.

  Therefore, the block 11 having a small average value of the thickness tc of the top plate portion 11c is inferior in load resistance (strength) compared to the block 11 having a larger average value than that, and even if one block 11 is seen, the top plate Depending on the thickness tc of the portion 11c, a difference in load bearing strength (strength) occurs.

  Therefore, when a load is applied to the upper surface of the water channel structure 10 by passing through the vehicle or the like, there is a possibility that defects such as cracking or breakage may occur in the block having the top plate portion having a low load bearing capacity. This problem can be prevented by increasing the thickness tc of the top plate portion 11c of the block 11 to be used as a whole, but the weight of the block 11 itself increases and the water channel structure 10 is constructed. The unit price per block increases, and this is not a good solution in the current situation where cost reduction is desired.

  The present invention was created in view of the above circumstances, and the object of the present invention is a block for building a water channel that can prevent variation in the load bearing capacity of the upper surface of a water channel structure including a water channel having a gradient, and the block The object is to provide a water channel structure using.

In order to achieve the above object, a block for building a water channel according to the present invention has a flow channel having a predetermined vertical dimension surrounded by a top plate portion, a bottom plate portion, a left side wall portion and a right side wall portion from one end to the other end. When have substantially matching length and flowing water channel of the block, the gradient formation to form a Tokoro Tei勾 distribution on bottom surface with forming the bottom of the water flow path in a state of being laid in running water channel of the block comprising a member, and its features in that.

Moreover, the water channel structure of the present invention is formed by connecting a plurality of water channel construction blocks according to claim 1 in which the gradient forming member is laid in the water channel of the block so that the water channels are continuous with each other. It is constructed, and a water channel having a predetermined gradient is formed by the flow channel of each block for building a water channel and the gradient forming member constituting the bottom surface of the flow channel .

  In the above-described water channel building block and a water channel structure using the same, in order to obtain a water channel having a predetermined gradient, a block having a constant top plate thickness is used as a block. A gradient forming member used by being laid inside is used.

  That is, as the plurality of blocks for constructing the water channel structure, the top plate portion having the same thickness and a constant thickness can be used, so that the load resistance (strength) of the top plate portion can be prevented from being different for each block. . Therefore, even when a load is applied to the upper surface of the water channel structure by passing through the vehicle or the like, it is possible to reliably prevent problems such as cracks and breakage in some blocks due to the thickness of the top plate portion.

  ADVANTAGE OF THE INVENTION According to this invention, the block for waterway construction which can prevent that the load-bearing force of the upper surface of the waterway structure which the waterway which has a gradient different from an upper surface gradient has varies, and a waterway structure using the same can be provided.

  The above object and other objects, structural features, and operational effects of the present invention will become apparent from the following description and the accompanying drawings.

  FIG. 3 shows an embodiment of a water channel structure having a water channel WW having a gradient. The water channel structure 20 has a top surface gradient Gu that is lower right in the figure and a water channel gradient that is lower left in the figure corresponding to the road surface gradient. Gw. The symbol HP in FIG. 3 indicates a horizontal plane, and the actual upper surface gradient Gu and channel gradient Gw are each about several percent.

  As shown in FIG. 4, the block for building a channel used when building this channel structure 20 includes a top plate portion 21c having a predetermined thickness tc and a flowing water channel 21a having a predetermined vertical dimension d extending from one end to the other end. A concrete block (hereinafter simply referred to as a block) 21, and a gradient forming member 22 that forms a bottom surface of the flow channel 21 a while being laid in the flow channel 21 a of the block 21 and forms a predetermined gradient on the bottom surface. It has. The water channel structure 20 is constructed by connecting a plurality of the water channel building blocks (blocks 21 on which the gradient forming member 22 is laid) so that the water flow channels 21a are continuous with each other. A predetermined water channel gradient Gw is formed by the gradient forming member 22 laid inside. Incidentally, reference numeral 21d in FIG. 4 denotes a left side wall part, 21e denotes a right side wall part, and 21f denotes a boundary part (walking road part).

  Among the plurality of blocks 21 shown in FIG. 3, the central three blocks 21 have the same vertical dimension d of the flow channel 21a and the same thickness tb of the bottom plate portion 21b. The thicknesses tc of the top plate portions 21c are the same and constant, and the upper surface heights H are the same. Although FIG. 3 shows a configuration in which three blocks 21 having the same shape are arranged in the center, the number of these blocks 21 can be appropriately increased or decreased depending on the channel gradient Gw and the like.

  Also, the two blocks 21 on both sides of the plurality of blocks 21 shown in FIG. 3 are different in shape from the three central blocks 21 in that the vertical dimension d of the flowing water channel 21a is different from the height H of the upper surface. is doing. Although illustration of the block following the two blocks 21 on both sides is omitted in FIG. 3, a plurality of blocks having the same shape as each block 21 are also connected to the two blocks 21 on both sides. The number of blocks 21 arranged on both sides can be appropriately increased or decreased according to the channel gradient Gw and the like, as in the central block 21.

  The gradient forming member 22 laid on each block 21 is formed of the same material as the block 21 or other materials such as plastic or ceramics, and has a shape similar to the shape of the bottom of the flowing water channel 21a (cross-section V shape). It has an upper surface 22a having a (cross-section V-shape) and a lower surface 22b having a shape (cross-section V-shape) that matches the shape of the bottom of the flowing water channel 21a (section V-shape). In addition, the width of the gradient forming member 22 is substantially the same as the width of the flowing water passage 21a, and the length is substantially the same as the length of the flowing water passage 21a. Further, the thickness t of the gradient forming member 22 gradually increases from one end to the other end, and has a predetermined gradient on the upper surface 22a.

  As can be seen from FIG. 3, the gradients of the upper surfaces 22a of the respective gradient forming members 22 are all the same, but the maximum thickness and the minimum thickness of each gradient forming member 22 are determined by the upper surfaces 22a of adjacent gradient forming members 22 being predetermined. Different thicknesses are set in advance so as to be continuous with a gradient. In a state where the gradient forming member 22 is laid in the flow channel 21a of each block 21, the bottom surface of the flow channel 21a is constituted by the upper surface 22a of the gradient forming member 22, and the gradient according to the inclination of the upper surface 22a is formed on the bottom surface. It is formed.

  In the method of laying each gradient forming member 22 in the flow channel 21 of each block, an adhesive mainly composed of epoxy resin or the like is provided on at least one of the lower surface 22b of the gradient formation member 22 and the bottom of the flow channel 21a of the block 21. Preferably, a method is adopted in which the lower surface 22b of the gradient forming member 22 is placed so as to fit into the bottom of the V-shaped cross section of the flowing water channel 21a, the adhesive is cured, and the gradient forming member 22 is integrated with the block 21. it can. In addition, a method that does not use an adhesive can be employed for laying the gradient forming member 22. For example, one of the concave portion and the convex portion that can be fitted together is formed in advance on the lower surface 22 b of the gradient forming member 22, and the other is flowing water. If the gradient forming member 22 is formed in advance in the bottom of the channel 21a, and the gradient forming member 22 is laid in the flowing water channel 21a by fitting both of the concave and convex portions, the gradient forming member 22 can be laid without using an adhesive. In this case, if the adhesive is used together, the gradient forming member 22 and the block 21 can be integrated more firmly.

  As shown in FIG. 3, a plurality of waterway building blocks (block 21 on which the gradient forming member 22 is laid) for building the waterway structure 20 are respectively installed in a posture inclined downward to the right in the figure, and the waterway gradient Gw Is formed by the upper surface 22a of the gradient forming member 22 that continues to the lower left, and the upper surface gradient Gu is formed by the upper surface of each block 21 that continues to the lower right.

  In the above-described water channel building block and the water channel structure 20 using the same, in order to obtain a water channel WW having a predetermined gradient Gw different from the upper surface gradient Gu, the thickness tc of the top plate portion 21c is constant. What is used as the block 21 is a gradient forming member 22 that is used by being laid in the flow channel 21 a of the block 21.

  That is, since the thickness tc of the top plate portion 21c is the same and constant as the plurality of blocks 21 for constructing the water channel structure 20, it is possible to use a load resistance (strength) of the top plate portion 21c for each block 21. Can be prevented from differing. Therefore, even when a load is applied to the upper surface of the water channel structure 20 by passing through the vehicle or the like, it is ensured that defects such as cracks and breakage occur in some blocks 11 due to the thickness tc of the top plate portion 21c. Can be prevented.

  Further, since the predetermined water channel gradient Gw is obtained by the gradient forming member 22 laid in the flow channel 21a of the block 21, the thickness tb of the bottom plate portion 21b of the block 21 and the top plate are obtained in order to obtain the water channel gradient Gw. Compared with the case where the thickness tc of the portion 21c is varied, the weight of the block 21 itself can be reduced and the unit price per block can be reduced.

  Furthermore, since the gradient forming member 22 is prepared separately from the block 21, a water channel WW having an arbitrary gradient Gw can be easily obtained by using the gradient forming member 22 having a different gradient on the upper surface 22a. .

  Furthermore, since it is not necessary to form the gradient forming member 22 with the same material as the block 21, by selecting the material, the weight and the unit price of the gradient forming member 22 itself, and thus the weight and the unit price of the water channel building block itself are selected. Can be suppressed.

  FIG. 5 shows another embodiment of a water channel structure having a water channel WW having a gradient, and the water channel structure 20 ′ has an upper surface gradient Gu and a right lower surface gradient Gu corresponding to the road surface gradient. It has a water channel gradient Gw, and the water channel gradient Gw is larger than the upper surface gradient Gu. The symbol HP in FIG. 5 indicates a horizontal plane, and the actual upper surface gradient Gu and channel gradient Gw are each about several percent.

  The channel construction block (the block 21 on which the gradient forming member 22 is laid) used when constructing the channel structure 20 ′ is different from the channel construction block shown in FIG. 3 and FIG. The point is that the direction of the gradient forming member 22 laid in the flowing water channel 21a is changed by 180 degrees.

  That is, by changing the direction of the gradient forming member 22 laid in the flowing water channel 21a of the block 21 by 180 degrees, the direction of the water channel gradient Gw can be varied by 180 degrees, and the gradient of the upper surface 22a is different. By using the member 22, the water channel WW having an arbitrary gradient Gw can be obtained. Other functions and effects are the same as those of the waterway construction block and waterway structure shown in FIGS. 3 and 4.

  In the embodiment shown in FIGS. 3 and 4 and the embodiment shown in FIG. 5, a plurality of blocks 21 having the same shape are arranged in the center, and a plurality of blocks 21 having different vertical dimensions d of the flow channel 21a are arranged on both sides thereof. Although illustrated, a plurality of blocks 21 having different vertical dimensions d may be arranged on both sides of the plurality of blocks 21 on both sides. When the total length of the channel structures 20, 20 ′ is short, etc., a single shape is used. It is also possible to configure the water channel WW only by the block 21.

  Further, in the embodiment shown in FIGS. 3 and 4 and the embodiment shown in FIG. 5, the channel structures 20 and 20 ′ having the upper surface gradient Gu of several percent are illustrated, but the upper surface gradient Gu is set to 0%. Even if the water channel building block is installed in the water channel structure, the water channel structure having the water channel WW having the predetermined gradient Gw can be constructed by the presence of the gradient forming member 22, and the same effect as described above can be obtained.

  Further, in the embodiment shown in FIGS. 3 and 4 and the embodiment shown in FIG. 5, a cross section in which the shape of the bottom of the flow channel 21 a of each block 21 and the shape of the lower surface 22 b of each gradient forming member 22 can be matched with each other. Although it is V-shaped, it goes without saying that the gradient forming member 22 can be laid in the flow channel 21a even if the bottom of the flow channel 21a of each block 21 and the bottom surface 22b of each gradient forming member 22 are flat.

It is a longitudinal cross-sectional view of the waterway structure provided with the waterway which has a gradient which shows a prior art example. It is a perspective view of the block shown in FIG. It is a longitudinal cross-sectional view of the waterway structure provided with the waterway which has a gradient which shows one Embodiment of this invention. FIG. 4 is a perspective view of a block and a gradient forming member shown in FIG. 3. It is a longitudinal cross-sectional view of the waterway structure provided with the waterway which has the gradient which shows other embodiment of this invention.

Explanation of symbols

  20, 20 '... Channel structure, 21 ... Block, 21a ... Flow channel of block, 21b ... Bottom plate portion of block, 21c ... Top plate portion of block, d ... Vertical dimension of flow channel, tb ... Thickness of bottom plate portion , Tc: thickness of top plate portion, H: height of upper surface of block, 22: gradient forming member, 22a: upper surface of gradient forming member, 22b: lower surface of gradient forming member, t: thickness of gradient forming member.

Claims (2)

A block having a flow channel with a predetermined vertical dimension surrounded by a top plate part, a bottom plate part, a left side wall part and a right side wall part from one end to the other end ;
It has substantially matching length and flowing water channel of the block, the gradient formation member forming a Tokoro Tei勾 distribution on bottom surface with forming the bottom of the water flow path in a state of being laid in running water channel of the block , and a,
A block for waterway construction. It is constructed | assembled by connecting the water channel construction block of Claim 1 in which the said gradient formation member was laid in the water flow channel of the said block so that a mutual water flow channel may continue, and each said water channel construction A water channel having a predetermined gradient is formed by the flow channel of the block and the gradient forming member constituting the bottom surface of the flow channel ,
A waterway structure characterized by that.

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