JP2007063887A - Box culvert-type side ditch with enhanced tractive performance constituted by placing top slab lid with drainage function throughout extended section - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an easily-constructible universal box-culvert type side ditch mainly of a top slab lid-placed type which is used as a noise-deadening type drop-lid side ditch with high tractive performance having a drainage function throughout an extended section, a free-slope side ditch with the same function and high constructibility, and an easily-cleanable box-culvert type side ditch with the same function, and makes construction cost and maintenance cost lower. <P>SOLUTION: This box culvert-type side ditch with enhanced tractive performance which is constituted by placing the top slab lid with the drainage function is characterized in that: the top slab lid can be structurally placed by opening a part of a top slab; a surface can be aligned with various construction cross sections; a section along the entire line in the direction of extension is formed in such a shape as to have the function of exerting the great effect of collecting water from a road and rapidly discharging the water into the side ditch; a downflow cross section is formed in such a shape as to have high tractive performance; products with different depths are combined together in a stepped manner; and the free longitudinal slope of a canal can be formed of a small amount of concrete. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a concrete box-shaped side gutter that drains surface water such as rainwater, and improves the water collecting function to the side gutter upper surface, and reduces the maintenance cost for cleaning. Further, the present invention aims to provide a box-shaped side gutter that allows a drainage gradient to be freely formed in spite of a road gradient as the water cross section.

  Conventionally used road side grooves have a U-shaped cross section, the upper surface is formed as an open surface, and a lid side groove formed by placing a flat side groove cover having a length of about 50 cm on the entire upper surface. A free-gradient side groove or cross section that has a load-bearing beam with flat surfaces on both ends of the upper surface of the mold, and a side groove lid placed on the opening of the upper surface so that the drainage can be freely formed with the bottom fully open A box-shaped side gutter having a substantially box shape and having an elongated slit-like opening part for drainage on the upper surface partially or full length is known, and is widely implemented in parks, open spaces, schools, etc. even on roads.

  However, the U-shaped drop lid side groove and the inverted U-shaped gate type, in which concrete is placed on the open bottom and the water gradient is formed on the free slope side groove, the side groove lid is placed on the top surface, and the vehicle runs At that time, the lid was light and short, so that rattling noise and corner breakage were likely to occur. In addition, the lid is provided with a handle hole for attachment and detachment, but this also serves as a drainage hole that allows the running water on the road surface to flow into the side ditch when it rains, but in the direction of the flow of rainwater that has accumulated on the road surface due to the rain Since they are arranged in parallel to each other, the water can be drained only with a narrow width of 20 to 30 mm, and the drainage efficiency is almost equal. On the other hand, if it is a box-shaped box-shaped side groove, there is no rattling noise or corner chipping because no lid is used, and the central part on the top surface has a high water collecting function and drains to a low part. If the groove is formed, it can be arranged perpendicular to the direction of the rainwater flow, so that the water collection efficiency during the rain can be increased. However, since the bottom part is formed integrally, it is not possible to form a waterway slope freely on a flat slope or reverse slope road like a free slope side groove, and it must be used according to the longitudinal slope of the road. There were many restrictions on use.

  Next, from the viewpoint of workability, the falling lid side groove will be filled with earth and sand on the back surface after the lid is installed after the main body is installed. This is because the side wall of the main body may be bent and the lid cannot be installed if it is backfilled before the lid is installed. In general, the length of the main body is 2 m and the lid is 0.5 m. So, since each product has one main body and four lids, it means five installation steps. The free-gradient side groove is casted with foundation concrete and hardened, then the main body is put in place and invert concrete is placed on the bottom. May be installed, or may be performed after the backfilling is completed. Regarding the enforcement, the length of the main body is 2m and the lid is 0.5m, as with the groove on the side of the lid, so each product has one main body and two lids, which means three installation steps. It had to wait for the foundation and invert concrete to harden. On the other hand, since the Hakodate-type side gutter is completed by one installation, it can be said that the workability is quick, but there is a problem in terms of maintenance such as cleaning.

  The bottom lid side groove and the free slope side groove are flat at the bottom of the water flow cross section, have poor scavenging performance, and accumulate mud at the bottom due to surface drainage quickly and easily. When cleaning, it was a work to remove all the lids, and it took a lot of time and had to rely on the volunteers of local residents.Unlike the past, the gathering of local residents was bad, and elderly people and women were the main force. Because of this, recently it has become the same. On the other hand, in the case of a Hakodate-type side groove, if the bottom of the water flow section is made to have a high shape such as a circular shape, a small amount of mud pool where the water channel slope can be taken will be flushed by flashback during heavy rain. However, in places where it is difficult to remove the channel gradient, mud accumulates even though it is said to have high scavenging performance. In this case, since the lid is not used when it accumulates, it is not possible to clean it from the top surface.Remove the grating lid on several tens of meters and clean it with a cleaning car equipped with vacuum. Inevitably, maintenance costs increase.

  Depending on the above, various ideas have been made, but they have the following secondary problems. The one with a slit on the top or top plate that appears on the top surface could see the inside of the side groove, causing discomfort to pedestrians and not matching the surroundings in terms of scenery. . Even if the bottom can be divided to form a free waterway gradient, it does not mean that enforcement will be accelerated.

  Therefore, as an improvement measure for draining over the entire extending direction of the upper surface, a lid side groove in which a cover plate reinforced with an elastic fixed beam by a plurality of reinforcing bars is placed, or the like, is provided. The gate-shaped side gutter with a slit in the top plate was placed in a convex shape in accordance with the drainage gradient in a convex shape or covered with the precast bottom concrete part. There is a box-shaped side groove in which a gradient side groove and an opening communicating with the inside and outside of the top plate part are provided, and a grating lid is placed between the top plate parts. As a result, the situation of mud pool and the scent of the pedestrian can be uncomfortable due to a synergistic effect, and the landscape can also be incongruent. In addition, if the wheel of a wheelchair, baby carriage or bicycle fits into the groove, it becomes a guide and the wheel is difficult to move from side to side, which may interfere with running and may cause a fall. Furthermore, since the slit ends are made of concrete, they tend to cause shear failure due to concentrated loads on the corners due to direct mounting on the vehicle. Or contribute to traffic obstruction.

  On the other hand, there is a problem with strength. First, in the case where the opening is provided in the cover plate and the gate-shaped top plate, in the elastic fixed beam by the reinforcing bars, the cracks are intentionally induced to give the upper surface a flexible structure. Since it will be repeatedly deformed, the rust-preventive galvanizing on the surface will be peeled off and it will be rusted easily, the yield strength of the rebar will be destroyed, it will not be able to withstand the design load, and eventually it will break and collapse The danger is great. Further, as described above, the slit end portion is easily broken and easily damaged. In fact, there is a case in which a cover plate reinforced with elastic fixed beams with multiple reinforcing bars used in a parking lot where only light vehicles such as passenger cars enter and exit in the Kanto area are severely damaged and the internal reinforcing bars are exposed. It has come out.

 Next, although the top plate portion of the box-shaped side groove provided with an opening communicating with the top plate portion is also integrally connected with the bottom plate or the side wall, no reinforcement is provided between the opening portions, Because it has a space where the grating lid is placed, the length of the top plate is short, it can not withstand the load due to direct mounting of the vehicle, the risk of damage is great, especially the slit end, It is weaker than the above because there is no reinforcement. In addition, the upper part is deflected by the earth pressure when approaching the vehicle acting on the side wall, the opening of the top plate part is narrowed and the function of drainage is reduced, and using grating on all products becomes expensive, It does not meet the demands of the era seeking reductions in construction costs. Furthermore, as mentioned above, there has been no improvement in implementation speed issues or maintenance.

  Also, on November 15, 2000, the Traffic Barrier-Free Act was enacted, and the gutters that hinder pedestrians' walks can be postponed for use in sidewalk spaces. As the number of use of gutters increases, a drastic reduction in public construction costs has led to a demand for gutter blocks that are less expensive to maintain.

  In addition, as a side gutter used at the boundary between the sidewalk and the roadway, the sidewalk is a flat type whose height is the same as that of the roadway, a semi-flat type that is 2-5 cm higher, or a walking road. There are various uses such as a mound-up type where the height of the boundary block is 15 to 25 cm higher, and at the boundary between the sidewalk and the roadway, a boundary block made of concrete or decorative stone is used for the side groove. There are various types of cases that are used in the form of being attached to the side, or in which the corner of the side groove body is partially cut off, or the whole is placed on the side groove or integrated.

In addition, since this gutter is used at the end of the roadway between the sidewalk and the roadway, in order to reduce noise due to vehicle running on the roadway and to prevent the vehicle from splashing on the sidewalk during rain, Asphalt pavement is often constructed, and it has become necessary to consider drainage of rainwater flowing down drainage pavement.
JP-A-8-31980 JP-A-9-302758 JP 2003-221864 A

  The problems to be solved are the points as described above, and the drainage groove on the surface is enhanced so that the surface drainage function can be extended in all extending directions, and the drainage groove is hard to break by reinforcing the periphery of the slit. To match the surrounding landscape, to be able to cope with various usage conditions, to reduce the number of cleanings and to make the flow cross-section with high sweeping properties that are low in cost, and road gradients that are difficult to remove Let's solve the above by making it possible to form a free channel gradient while maintaining high scavenging performance, enabling concrete to be placed after backfilling is completed, and enabling construction to be done quickly and inexpensively. The problem is to do.

  The present invention has a shape in which the surface can be adjusted to various cross sections and has a high water collecting effect from the road over the entire line in the extension direction, and has a function of quickly draining into the side groove. In addition, the cross-section of the flow down as a cross-section with high scavenging characteristics, and can be combined step by step, or can form a free channel gradient with a small amount of concrete, or partially for concrete placement and emergency cleaning It has a structure that can be removed using the top plate as a lid, has a high water collecting function on the surface of the roadside end, has high scavenging ability and flow ability, and matches the surrounding landscape, making it easy to maintain and manage. The most important feature is that it can be implemented at low cost, and is as follows.

(1) The invention described in claim 1 is such that the flow-down cross section of the box-shaped side groove has a steep slope V shape, inverted elliptical convex shape, elliptical shape or egg shape with high scavenging properties, and is adjacent to both ends of the top plate portion. As a structure in which a noise-reducing type drop lid or a long-type top cover with a hanging lid type is placed in the central part, the top of the side groove and the top of the top cover are connected to the rainwater on the road surface. L-shaped, loose V-shaped or dish-shaped with high water collection effect, drainage groove for flowing down the lower side groove cross section in the low water collection part, drainage fittings or drainage fittings as reinforcement Box type with improved scavenging performance, which is formed by placing a top cover with a drainage function over the entire extension, characterized by being integrally formed and formed over the entire extension direction. Side groove.

(2) The invention according to claim 2 is extended by combining the side groove block stepwise with the depth of the box-type side groove having improved scavenging performance as described in item (1) in increments of 5 or 10 cm. A box-shaped side groove with improved scavenging performance, in which a top cover having a drainage function is placed over the entire extension, characterized in that a step-down gradient can be formed in the direction.

(3) The invention according to claim 3 is a combination of the side groove blocks stepwise with the depth of the box-type side groove having improved scavenging performance as described in the item (1) in steps of 5 or 10 cm. In accordance with the desired downflow gradient, invert concrete was cast in-situ to form a smooth and constant channel gradient in the extension direction. A box-shaped side groove with improved scavenging performance by placing a top plate lid on it.

  The box-shaped side gutter of the present invention is a noise-removing type high-capping lid side groove having a drainage function over the entire extension, and also a noise-canceling type scavenging ability having a drainage function over the entire extension and As a free-gradient side groove with high workability, and as an easy-to-clean box-side groove that has a drainage function over the entire extension, it is the ultimate product of the side groove to be aimed at from now on, and is a universal type, Matching the surrounding landscape, there is an advantage that construction costs can be reduced and maintenance and management costs are low, and it can be implemented easily.

  Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1 to 21 are perspective views showing a basic mode of a box-shaped side groove of the present invention in which a top plate lid is placed in a top plate opening. FIG. 1 shows a box-shaped side groove 1 in which an opening 10 for mounting a top plate lid 2 is formed at the center of the top plate portion. The sidewalk can be used as a flat or semi-flat type with respect to the roadway as an L-shaped shape with a high rainwater collecting effect on the road surface by integrating the walking road boundary block 8 with both sides R closer to the left end side of the road In order to allow rainwater collected in all extending directions to flow down below the side groove cross section near the apron portion 9 of the L-shaped base, the surface of FIG. Product length formed as an integrated drainage groove 12 having a trapezoidal through-groove structure in which the drainage metal fitting 3 provided with a large number of drainage holes 13 of ~ 100 mm is buried and the lower side is widened so that mud does not collect It is a perspective view of the main body of the box-shaped side groove | channel 1 which made 2m. However, the gradient of the L-shaped apron portion 9 is formed at 1 to 6% in accordance with the road conditions.

  Thus, by using the drainage groove 12 in which the drainage metal fitting 3 is embedded rather than the concrete only groove by the slit, the concrete end portion is reinforced with the metal fitting, so that a load due to direct mounting on the vehicle acts. However, the end of the drain is not damaged. This is common to all the drainage grooves formed by integrally or integrally attaching the top cover and the drainage metal fitting by other methods, which will be described later, and will not be described later.

  FIG. 2 is a perspective view of a top plate lid 2 having a falling lid type structure that is placed in the central opening 10 of the main body top plate portion, and the length of the top plate lid is 1 m which is twice that of a conventional lid plate. A noise-reducing type that is made heavy and difficult to move, restricts the gap between the main body and the lid on the left and right sides of the four circumferences in the width and length directions, and shifts and jumps up when mounted directly on the vehicle. Protrusions 14 for prevention are formed in a staggered manner, and the drainage fitting 3 is embedded in the vicinity of the apron portion 9 of the L-shaped base portion in the same manner as the main body so that the collected rainwater flows down under the cross section of the side groove. The drainage groove 12 is formed in the extending direction.

  The burying of the drainage metal fitting 3 serves both as reinforcement of the top plate portion by direct mounting on the vehicle and prevention of the flip-up, and the thickness of the metal fitting is 1 to 2.3 mm, and the width is 10 to 30 mm. A bowl-shaped hat-like protection with a height of 20 to 30 mm, a ridge 16 for embedding in concrete at the lower end with a width of 10 to 30 mm, and a number of holes 17 for increasing the adhesion of concrete. It is a steel plate that has been rusted and is made of stainless steel. In addition, at the bottom of the side wall of the main body, both end sides are almost the same as the upper width so as to stabilize the installation of the product in practice and to reduce the product weight, two triangular cuts 15 are provided on one side. Provided. In addition, when the product length of the main body is set to 2.5 or 3 m and the length is increased in accordance with the recent reduction in construction costs, the length of the top cover 2 is also increased to 1.5 to 2 m. It goes without saying.

  FIG. 4 shows a box-shaped side groove 1a in which an opening 10 for mounting the top plate cover 2a with the full width is formed in the center of the top plate portion. As a convex shape 11a, a pedestrian boundary block 8a with one side R is integrated on the left end side of the top surface of the top plate portion, and an L-shaped shape with a high rainwater collecting effect on the road surface is formed. It is designed to be used in a mound-up type with a height of 15 to 25 cm, so that rainwater collected in all directions in the vicinity of the apron 9 at the base of the L-shaped can be drained under the cross section of the lower side groove. As a reverse trapezoid with a wide top, the drainage fitting 3a shown in FIG. 6 is placed so that it can be removed in the event of an emergency, and a trapezoidal through-groove structure with the lower side widened so that mud does not collect below the reverse trapezoid It is a perspective view of the main body of the box-shaped side groove 1a as the drainage groove 12a, The reinforcement 18 for reinforcing the connection and the top plate portion are embedded top plate one per two. In order to prevent the drainage fitting 3a from jumping up when the vehicle travels, the reinforcing member 18 is provided with a fixing screw 19 as shown in FIG. Further, the gradient of the L-shaped apron portion 9 is formed at 1 to 6% as described above, and the lid hanging portion is an oblique wedge-shaped surface 21.

  FIG. 5 is a perspective view of a top cover 2a having a cover-type structure that is placed with a full width in the central opening 10 of the main body top plate, and the top cover is lengthened in the same manner as described above. Both sides of the lower surface of the plate are slanted wedge-shaped surfaces 21 and are of a noise-dissipating type with a function that is difficult to move as a surface tangent structure. Like the main body, the collected rainwater is placed near the base of the L shape. The drainage fitting 3a of FIG. 6 is placed on the whole line as an inverted trapezoid with the top widened in order to flow down the cross section of the side groove, and a trapezoidal mud structure with a trapezoidal mud that has a wider lower side below the inverted trapezoid The drainage groove 12a is provided and four reinforcing members 18 are embedded to reinforce the connection of the metal fittings and the top cover, and the reinforcing materials 18 at both ends are shown in FIG. 7 to prevent the metal fittings 3a from jumping. It is connected to the screw 19 using a countersunk bolt 20.

  This drainage fitting 3a is made of a rust-proof steel plate or stainless steel plate having a thickness of 2.3 to 3.2 mm and a width of 30 to 80 mm, as described above. It is made of a rust-proof steel material having a width of 10 to 30 mm and a height of 20 to 60 mm, and is made of stainless steel square. Screws 19 are attached to the reinforcing members 18 at both ends for fixing as shown in FIG. It is chopped and connected with a countersunk bolt 20 or the like. Needless to say, this reinforcing member 18 can be arranged with increased rigidity by changing the number and size of the top plate lid 2a up to the same strength or more as the concrete part depending on the situation of use. The range of use will be further expanded. In the state in which the top cover 2a is installed, both sides are suppressed and fixed by a rolling material such as an asphalt layer, so that an integrated box structure is obtained after the construction. In addition, as in FIG. 1, in order to stabilize the product in practice and reduce the product weight, a triangular notch 15a is provided on one side of the lower side wall of the main body.

  FIG. 8 shows a box-shaped side groove 1b in which an opening 10 for placing a top plate lid is formed in the center of the top plate portion, and a reverse semicircular convex shape 11b having a high flow rate at a low flow rate at a low flow rate. As shown in the figure, a notch step 22 is formed so that the pedestrian boundary block can be partially placed on the left end of the top surface of the top plate portion, and the shape of the V-shaped 9a is slightly loose and has a high effect of collecting rainwater on the road surface. As shown in Fig. 3, the drainage fitting 3b shown in Fig. 3 with the same width as that of Fig. 3 and having an upper width of about 10mm is embedded in the bottom of the V shape so that water can be collected in the entire extension direction. In the perspective view of the main body of the box-shaped side groove 1b, in which three reinforcing members 18a are embedded per top plate to reinforce the top plate portion as a drainage groove 12b having a trapezoidal through groove structure with a wide lower side as shown in FIG. The top plate also serves as an anti-slip in consideration of the surroundings and the traffic barrier-free law. It is formed in Aurangabad pattern 31. Further, the slope of the top plate portion of the offset V-shaped 9a is 1 to 6% in the longer side, and the shorter side is formed as a slope according to the height of the end, and corresponds to the recent drainage pavement 30. Therefore, a drain hole 29 is formed in the upper part of the side surface.

  FIG. 9 is a perspective view of a top plate lid 2b having a falling lid type structure placed on the central opening 10 of the main body top plate portion, in order to lengthen the top plate lid and further prevent the lid from shifting. The vertical projection 14a is formed in four directions on the side surface, and is a noise-reduction type with the function of preventing rotation and displacement by direct mounting on the vehicle. The drainage metal fitting 3b is embedded in the bottom of the shape, and the reinforcing member 18a is formed as a drainage groove 12b having a trapezoidal through-groove structure that collects water in all extending directions and widens the lower side so that mud does not collect. It is formed by embedding six pieces per plate cover 2b. Like the main body, a brick pattern 31 is formed on the top surface of the top plate. As described above, the reinforcing material is a steel material having a width of 10 to 30 mm and a height of 20 to 60 mm that has been subjected to a rust prevention treatment. Made with sticks.

  FIG. 10 shows a sectional view of the use situation, and the pedestrian boundary block 8 having both surfaces R formed of concrete or stone is placed on the cut step portion 22 formed at the left end portion of the main body, and the upper surface is A box-shaped side gutter with an L-shaped shape with some pedestrian road boundary blocks protruding sideways, the left side is a semi-flat sidewalk that is 5 cm higher than the right side, the right side is the roadside side, and rainwater is The water is collected in the drainage groove 12b at the lower part of the V-shaped 9a near the loose part of the printing plate, and all of the main body of the box-shaped side groove 1b and the drainage groove 12b in the middle of the left-side groove of the top cover 2b are below the side groove cross section. A drainage hole 29 is provided in the upper part of the side wall of the main body on the side of the roadway so as to communicate with the drainage pavement 30. Rainwater permeates through the drainage pavement 30 and is collected. It drains into the gutter through. Further, a cut recess 23 is partially provided at a low portion of the inverted semicircular convex 11b of the main body, and this is easy to adhere when concrete is placed in order to freely take a channel gradient. In a place where there is a road gradient and a sufficient waterway gradient is obtained, even if it is used without hitting concrete at the bottom, there is no problem in practical use.

  FIG. 11 shows a box-shaped side groove 1c having an opening 10 in which the top plate cover 2c is placed at the full width at the center of the top plate portion. A wide notch step 22a is formed on the left side of the upper surface of the section so that the entire pedestrian boundary block can be placed on the road surface. The drainage bracket 3c shown in FIG. 13 can be placed so that it can be removed in the event of a reverse trapezoidal shape with a wide top so that the collected rainwater can be drained under the lower side groove cross section so that mud does not collect. 8 is a perspective view of the main body of the box-shaped side groove 1c in which the lower side of the inverted trapezoid is formed as a drainage groove 12c having a trapezoidal through groove structure with a wide lower side. A pattern 31a is formed to reinforce the connection of the metal fittings and the top plate part. The fit wide stiffener 18b are embedded top plate one per one. The reinforcing member 18b is provided with a screw 19 for fixing the drainage fitting 3c, and is connected by a single flat head bolt 20, and the width regulating projection 14b is located near both ends of the drainage fitting 3c in the side wall portion extending direction. Is formed. In addition, in order to stabilize the product and reduce the product weight in practice, one trapezoidal cut 15b is provided on one side of the bottom of the side wall of the main body, and the slope of the top plate portion of the offset V-shaped 9a is provided. The state is the same as described above, and the lid hanging portion is an oblique arch-shaped surface 21a.

  FIG. 12 is a perspective view of a top plate lid 2c having a cover-type structure that is placed in the central opening 10 of the main body top plate portion with a full width. Both ends are inclined wedge-shaped surfaces 21. As a line contact structure, a function of providing a protrusion 21c protruding downward over the entire length of the top plate lid 2c is added to make it difficult to move and to prevent the lid from shifting. As with the main body, the drainage fitting 3c shown in FIG. 13 can be placed on the entire line as a reverse trapezoid with a wide top so that the collected rainwater can flow down the cross section of the side groove. A trapezoidal mud with a wide bottom side is provided with a drain groove 12c having a through-groove structure, and three wide reinforcing members 18b are embedded to reinforce the connection of the metal fittings and the top cover. Similarly, a tile pattern 31a is formed on the top surface of the top plate. Of these three reinforcing members, one central reinforcing member 18b is engraved with a screw 19 for fixing the drainage fitting 3c, and is connected by a single countersunk bolt 20 and close to both ends of the fitting. Since the protrusion 14b for regulating the width is formed on the base plate, it does not deviate even when it is connected by one or when the vehicle is running. 4 and 5 described above, in the state in which the top plate cover is installed, both sides are suppressed and fixed by a rolling material such as an asphalt layer, so that an integrated box structure is obtained after construction.

  FIG. 14 is a sectional view of the usage situation. A vehicle having a wide cut step 22a formed at the left end portion of the main body with a protruding height from the roadway of 5 cm and a single slope on the roadway side. A boarding type pedestrian boundary block 8b is placed on the side of the sidewalk where the left side is the semi-flat side of the entry section where the vehicle crosses, with the upper side of the side groove forming a box-shaped side groove with an L-shape. Is drained through the drainage groove at the center of the top plate and top plate cover of the main body, and the rainwater is collected in the drainage fitting 3c installed at the low part of the V-shaped 9a near the loose side of the top plate part. It flows down under the side groove section over the entire extension from 12c.

  FIG. 15 shows a box-shaped side groove 1d formed with an opening 10a for placing the top cover at the full width across the top and bottom of the top plate part. 11d, the rainwater collected in the apron part 9 end in all extending directions as an L-shaped shape integrally formed with a sidewalk crossing type walkway boundary block 8c having a height of 2 cm from the center of the top plate to the left end As an inverted trapezoidal shape with the top widened so that water can be drained under the lower side groove section, the drainage groove 12d has a convex through groove structure with the bottom widened so that mud does not collect underneath it. 17 is a perspective view of the main body of the box-shaped side groove 1d on which the drainage metal fitting 3d of FIG. 17 adopting an attachment method different from that of FIG. 6 and FIG. 13 is used, and a reinforcing member 18c for reinforcing the top plate portion. Three are buried per top plate. This drainage fitting 3d is formed with two hook fittings on one side with protrusions 14d on the inner side of the lower end of the fitting so that it can be attached and removed with one touch, as shown in FIG. The metal fitting is placed on the main body so as to bite under the protruding portion 14e near the center of the thickness of the drainage groove 12d through which the projection 14d of the hook metal fitting passes. It goes without saying that the number of hooks 14d may be three or more, or may be provided over the entire line.

  FIG. 16 is a perspective view of a top plate lid 2d having a cover-type structure that is placed across the opening 10a at both ends of the top plate portion of the main body, and the top plate lid is lengthened. Both ends of the lower surface are inclined arch-shaped surfaces 21a, making it difficult to move as a line contact structure, and as an oblique flat wedge-shaped surface 21 of the main body cover hanging portion to prevent displacement of the cover plate, It is a noise-reducing type with the function of providing a flat surface 21d portion on the side. Like the main body, it has an L-shape that integrally forms a pedestrian boundary block that crosses the sidewalk or enters the vehicle. As a drainage groove 12d having a convex through-groove structure in which the upper part is an inverted trapezoidal shape and the lower side is widened, the projection 14d of the drainage metal fitting 3d in FIG. Biting under the protruding lug 14e It is placed on the whole line, and is formed by embedding a reinforcing member 18c for reinforcing the top plate cover 2d. In addition, as in FIGS. 4 and 5 and FIGS. 11 and 12, in the state where the top cover 2d is installed, both sides are suppressed and fixed by a rolling material such as an asphalt layer, so that after the construction, it is integrated. It becomes a box-type structure.

  FIG. 19 shows a box-shaped side groove 1e having an opening 10a on which the top plate cover is placed on both ends of the top plate portion in the front-rear direction. The flow-down section is a deep inverted ellipse 11e having high scavenging properties. In the central part of the top plate top surface, the height of the metal fittings in FIG. 3 is further deepened so that it can be drained in all extending directions as a symmetric loose V shape 9b shape with high rainwater collecting effect on the road surface. The drainage metal fitting 3e of FIG. 21 reinforced in the extending direction with two to three reinforcing members 18d in the transverse direction is formed as an embedded integrated structure, and the main body of the box-shaped side groove 1e with the lid hanging portion formed as an oblique arcuate surface 21b. In the perspective view, a cut recess 23 is partially provided at a low part of the inverted ellipse 11e, which is formed so as to be easily attached when concrete is placed in order to freely take a water channel gradient. And where there is a road gradient and the waterway gradient is sufficient, Even if it is used without hitting concrete, there is no problem in practical use.

  FIG. 20 is a perspective view of a top plate lid 2e having a falling lid type structure that is placed across the opening 10a at both ends of the top plate portion of the main body, and has a long top plate lid. The slanted arcuate surface 21b is used as the arch-shaped surface contact structure at both ends of the lower surface of the cover, making it difficult to move and laterally extending projections 14c for preventing displacement vertically on the side surface in the width direction. The drainage groove 12 for flowing rainwater collected by the loosely symmetrical left and right V-shaped 9b down the cross section of the lower side groove, as a noise-reducing type formed in two rows and two in the length direction. The drainage fitting 3e shown in FIG. 21 is formed by being embedded and integrated over the entire line in the extending direction of the central portion. In addition, in order to stabilize the product in practical use and reduce the product weight, two diagonally cut arcs 15c are formed on one side at the lower part of the side wall of the main body.

  Next, features and differences of conventional side grooves will be described. First, the U-shaped drop lid side groove 4 is generally as shown in FIG. 22, the main body length is 2 m, the lid plate 5 is 0.5 m on one side, the depth is 20 to 25 mm, and the width is 100 to 100 mm. A concave portion 24 for holding a 120 mm lid 5 is formed, and the main body is composed of four pieces. FIG. 23 shows a sectional view of the usage situation. However, since the lid 5 is placed, the upper part of the side wall swells, and there is a problem that the backfill material does not easily enter the protruding lower part and is difficult to roll. Moreover, since the upper part of the side wall has a cantilever structure fixed with a bottom plate, if the back plate 5 is not refilled after being placed, the upper part of the main body is bent by the rolling load, and the lid 5 is fitted. There was also a drawback of disappearing. Furthermore, since the length of the cover plate 5 is as short as 0.5 m, it is displaced by direct loading of the vehicle, it is flipped up, rattles, and the cover plates and the cover plate and the main body collide with each other. It was expensive to manage.

  The next is a free-gradient side groove 6 which is an inverted U-type portal type and invert concrete 26 is placed on the open bottom portion to form a channel gradient. Generally, as shown in FIG. Is 2 m, the length of the load-bearing beams 25 at both ends of the upper surface is 0.5 m, the cover plate 5 a is 0.5 m, and a concave portion for placing a lid having a depth of 20 to 25 mm and a width of 100 to 120 mm on one side. 24a is formed, and it is constituted by two sheets per main body. FIG. 25 shows a cross-sectional view of the usage situation, but the problem is that the upper part of the side wall is swollen in the same manner as the drop cover side groove 4 to place the cover plate 5a, and the backfill material hardly enters the protruding lower part and is difficult to roll. In addition, since the bottom end of the side wall is a cantilever beam structure fixed with the load-bearing beam 25 on the upper side, the invert concrete 26 must be cast on the open bottom and hardened, and then backfilled. There was also a drawback that it took too much time to implement, including placing and hardening the concrete 27. The total number of cover plates 5a may be half of the drop cover side groove 4, but the length of the cover plate 5a is as short as 0.5m. It is the same as that of the drop lid side groove 4 that requires.

  Finally, the box-type side groove 7 having an integral box-type structure is generally rectangular as shown in FIG. 26, and the rectangular section 11f is almost the same because the cross section of the flowing water is matched with the lid-side groove and the free-gradient side groove. . However, in recent years, it has become possible to find a semicircular or circular shape of the cross section of the flowing water, which is a commercial product of a fume tube having a medium size and an outer periphery reinforced with 360 ° concrete. Some of them have a plate shape or V shape with a loose upper surface, but the mainstream is mostly flat and mekra, but the width is narrow enough to fit the side groove as shown in FIG. Only a drainage groove having a horizontally long slit groove 28 is provided. However, even if this elongated slit 28 is partially provided in the vertical direction, it is not formed in the entire extension line, so that over time, earth and sand will accumulate between the grooves and the normal road edge In addition to obstructing the surface flow, it does not match the surrounding landscape aesthetically. Moreover, even if it is formed in the full length, the rainwater on the surface can be treated, but if it is in a place where there is almost no road gradient or in a reverse gradient, it cannot collect and flow downstream, so the use place is limited There are many such places especially in places where landscapes are required.

  Now, the features of the present plan will be described. First, FIG. 27 shows the difference in scavenging performance due to the difference in the cross section of the flowing water. The cross section at the left end is the conventional lid-side groove 4, free-gradient side groove 6, box-type side groove 7 and box of the present application. Compared with 30 cm of each of the cross sections of the mold side grooves 1 to 1e, the width and the depth are 1: 1. When the water flow depth is set to a small flow rate of 3 cm, which is 10% of the total depth, the water depth in the case of the second inverted ellipse 11e from the left is 1.93% of 5.75 cm. The water depth in the case of the second steep slope V shape 11 from the right is 2.30% of 6.85 cm. The water depth in the case of the convex shape 11a having a steep reverse elliptical shape at the right end is 9.23 cm, which is 3.23%. It can be seen that the difference in cross section results in a large difference of 2 to 3 times in the scavenging performance, and the effect is remarkably different. The mud does not collect easily during the normal rain, and the frequency of cleaning is greatly increased. Since it can be extended, the maintenance cost can be reduced. In other words, in the free gradient side groove 6 in which the invert concrete 26 is placed at the bottom to form a water channel gradient, the same scavenging performance is obtained unless a water channel gradient of 2 to 3 times that of the box-shaped side groove of the present application is formed. This means that it cannot be obtained, and the depth of the product becomes deep, the amount of excavated soil increases, and the cost increases.

Next, an example of use when there is almost no road gradient will be described. A conventional road side gutter can only be a free-gradient side gutter 6 in which invert concrete 26 is cast on the open bottom to form a channel gradient, but it takes time to implement and is rectangular 11f. There was difficulty in fluidity. In FIG. 28, the depth of the box-shaped side groove 1a, which is a steep reverse elliptical convex shape 11a having a high flow rate at a low flow rate and having a flow-down cross section as shown in FIGS. An implementation example is shown in which the side groove blocks are combined in a stepped manner so that a step-down gradient can be formed in the extending direction. Even if the road gradient is horizontal, water flows to the lower side, so as shown in the figure, even if it is a small amount, it can flow down with a certain depth of water. By making the step between the side grooves 5cm, the flow becomes even smoother.

  An example of use in the case where the road gradient is reverse will be described. Similarly, only the free slope side groove 6 is possible in the conventional road side groove, but as described above, there are various problems. In FIG. 29, the depth of the box-shaped side groove 1 in which the flow-down cross section shown in FIGS. An implementation example is shown in which invert concrete 26a is placed on the open bottom of the mounting portion of the top cover 2 on site to form a channel gradient and a free flowing gradient in the extension direction. The conventional rectangular free-gradient side groove 6 has to be laid with invert concrete 26 to the full width of the channel, but the box-shaped side groove 1 of the present plan has a steep V-shaped cross section, so that it goes to the lower end. The width is narrow. Naturally, even if the invert concrete 26a is placed on the open bottom on the site, the amount is only a fraction of the conventional amount, and the average of the invert concrete 26a at the bottom can be made fairly quickly and is also very economical. .

  In particular, when it is implemented in the city, it is required to reduce the obstacles to pedestrians, bicycles and vehicles as much as possible. Even if you hit invert concrete, you can install and refill the gutter products in a short period of time. The proposed one, which can be used as a road and can be installed at a later time, is optimal and will not affect daytime commercial hours if construction is performed at night. Become. With regard to the scavenging performance, by placing invert concrete, the water depth is somewhat shallower than that which is not cast, but the flow velocity is increased by the amount that the canal gradient can be taken, so the scavenging performance. Will go up further. As a matter of course, when the step between the side grooves is 5 cm, the amount of invert concrete to be used can be further reduced, the scavenging property is further improved, and the flow is smooth.

  Apart from this, FIG. 30 is a partial cross-section for adhesion which is a small concave portion so that the concrete is easily adhered to the bottom slab portion, with the flow-down cross section shown in FIGS. Invert concrete 26a is formed from the opening portion to the bottom portion of the mounting portion of the top plate lid 2e by combining the side groove blocks in a step shape with the depth of the box-shaped side groove 1e provided with a notch recess 23 being 10 cm. An implementation example is shown in which it is placed on site and the finished surface is leveled in an arc shape so that a free-flowing gradient can be formed. It goes without saying that the scavenging performance is higher than that of the side groove block of FIG. 29 described above. As a matter of course, by setting the step between the side grooves to be 5 cm as described above, the amount of invert concrete is reduced, the scavenging property is further improved, and the flow is further smoothed.

  In addition, since the drainage groove is formed over the entire surface of the main body of the box-shaped side groove 1e and the top cover 2e, the rain due to rainwater on the roadway and sidewalk is quickly collected and collected in the drainage groove. Because it flows down under the cross section of the gutter, there is no sediment on the surface, and it is always beautiful and matches the surrounding landscape. The drainage groove is formed by embedding drainage metal fittings 3, 3 b, 3 e, and having the drainage metal fittings 3 a, 3 c, 3 d placed and removed. It is used properly according to the landscape.

  Since the box-shaped side groove of the present invention is a noise-reducing and highly scavenging side groove, the shape of the top plate and top cover of the main body is L-shaped, various shapes such as a loose V-shape and a dish-shaped shape. As a side gutter that can be used in sidewalks that conform to the Traffic Barrier-Free Act, as a side gutter at the boundary between the sidewalk and the roadway, and according to the application, the lid can be removed as necessary. It can be used as an easy-to-clean box-type side groove as a free-flowing side groove with high scavenging ability, as a drip lid side groove with high scavenging ability, and can be used for all of them with one product. All the products so far can be aggregated.

It is the perspective view which showed the basic aspect of the box side groove | channel main body which integrated the pedestrian road boundary block made into both surfaces R. FIG. It is the perspective view which showed the basic aspect of the top plate lid | cover which integrated the pedestrian road boundary block made into the both surfaces R used for FIG. It is the perspective view which showed the basic aspect of the drainage metal fitting mounted in FIG. 8 and FIG. It is the perspective view which showed the basic aspect of the Hakodate gutter main body which integrated the pedestrian road boundary block made into the single side | surface R. FIG. It is the perspective view which showed the basic aspect of the top plate cover which integrated the pedestrian road boundary block used as the single side | surface R used for FIG. It is the perspective view which showed the basic aspect of the drainage metal fitting mounted in FIG. 4 and FIG. FIG. 7 is an enlarged cross-sectional view illustrating a state where the drainage fitting of FIG. 6 is attached to the top plate portion of the main body. It is the perspective view which showed the basic aspect of the box side groove | channel main body which formed the notch which can mount a pedestrian road boundary block. It is the perspective view which showed the basic aspect of the top plate lid which formed the notch which can mount the pedestrian road boundary block used for FIG. FIG. 10 is a cross-sectional view of a usage situation in which FIG. 8 and FIG. 9 are combined. It is the perspective view which showed the basic aspect of the box side groove | channel main body which formed the wide notch which can mount the whole walkway boundary block. It is the perspective view which showed the basic aspect of the top plate cover which formed the wide notch which can mount the pedestrian road boundary block used for FIG. It is the perspective view which showed the basic aspect of the drainage metal fitting mounted in FIG. 11 and FIG. FIG. 14 is a cross-sectional view of the usage situation in which FIG. 11, FIG. 12 and FIG. 13 are combined. It is the perspective view which showed the basic | foundation aspect of the Hakodate side groove | channel main body as L shape which integrally formed the walkway boundary block of the sidewalk crossing type with low height. It is the perspective view which showed the basic aspect of the top cover which formed the L-shaped shape by integrally forming the low-profile sidewalk type walkway boundary block used for FIG. It is the perspective view which showed the basic aspect of the drainage metal fitting mounted in FIG. 15 and FIG. FIG. 18 is an enlarged cross-sectional view illustrating a state where the drainage fitting of FIG. 17 is attached to the top plate portion of the main body. It is the perspective view which showed the basic aspect of the box side groove | channel main body which made the metal fitting for drainage embed | buried and integrated as a loose V shape. It is the perspective view which showed the basic aspect of the top cover which made the metal fitting for drainage embed | buried and integrated as a loose V shape used for FIG. It is the perspective view which showed the basic aspect of the drainage metal fitting embed | buried in FIG. 19 and FIG. It is the perspective view which showed the main body and lid plate of the conventional drop lid side groove | channel. FIG. 23 is a cross-sectional view of the usage state of FIG. 22. It is the perspective view which showed the main body and lid | cover plate of the conventional free-gradient side groove | channel. FIG. 23 is a cross-sectional view of the usage state of FIG. 22. It is the perspective view which showed the conventional box-shaped side groove. It is sectional drawing which showed the water flow condition which showed the sweeping property of various cross sections typically. The usage situation sectional drawing which showed the example of the implementation which formed the flow-down gradient on the step by combining the box-shaped side groove of this proposal in steps is shown. FIG. 2 is a cross-sectional view of a usage situation showing an example of an implementation in which the box-shaped side grooves of the present plan are combined in a staircase shape and concrete is placed on the open bottom portion to form a free flowing gradient. This is a cross-sectional view of the usage situation showing an example of implementation in which the box-shaped side grooves of this plan are combined in a staircase shape and concrete is cast in the arc shape on the open bottom to form a free-flowing gradient. is there.

Explanation of symbols

1-1e Box-shaped side groove 2-2e Top plate cover 3- 3e Drainage fitting 4 Drop-lid side groove 5-5a Lid 6 Free-gradient side groove 7 Box-shaped side groove 8 Pedestrian boundary block with double-sided R 8a Single side R Pedestrian boundary block 8b Pedestrian boundary block of vehicle entry type 8c Pedestrian boundary block of sidewalk type 9 Apron part 9a Loose V-shaped 9b Symmetrical loose V-shaped 10 Central opening 10a Opening at both ends 11 Steep V shape 11a Steep reverse elliptical convex shape 11b Reverse semicircular convex shape 11c Reverse hemispherical shape 11d Steep reverse elliptical shape 11e Reverse elliptical shape 11f Rectangular

12 to 12d Drainage groove 13 Drainage hole 14 to 14c Protrusion 14d Projection of hook metal fitting 14e Protruding portion 15 to 15c Notch 16 17 Adhesion hole 18 to 18d Reinforcement material 19 Screw 20 Countersunk bolt 21 Diagonal wedge-shaped surface 21a Diagonal Arch-shaped surface 21b oblique arc-shaped surface 21c protrusion protruding downward 21d flat surface 22 partial cutting step 22a wide cutting step 23 partial cutting recess 24-24a 25 Load-bearing beam 26 Invert concrete 27 Foundation concrete 28 Slit groove 29 Drain hole 30 Drainage pavement 31 Brick pattern 31a Tile pattern

Claims (3)

  The flow-down cross section of the Hakogata-type side groove has a steeply steep V shape, inverted elliptical convex shape, elliptical shape or egg shape, and is passed to the adjacent side groove at both ends of the top plate part and the noise-reducing type at the center part As a structure in which a long type top cover with a falling lid or a hanging cover is placed, the top plate of the side groove and the top surface of the top cover are formed into an L type and a loose V type with high rainwater collecting effect on the road surface. As a dish type shape, drainage grooves for flowing down below the lower side groove cross section in the lower water collecting part, drainage metal fittings are embedded, or drainage metal fittings are placed integrally on the reinforcing material, extending in the entire extension direction A box-shaped side groove with improved scavenging performance, which is formed by placing a top cover having a drainage function over the entire extension.   The product depth of the same width of the box-shaped side groove with improved scavenging performance according to claim 1 is set in steps of 5 or 10 cm, and the side groove blocks are combined in a step shape to form a stepwise downflow gradient in the extending direction. A box-shaped side groove with improved scavenging performance, which is provided with a top cover having a drainage function over the entire extension.   The product depth of the same width of the box-shaped side groove with improved scavenging performance according to claim 1 is set in steps of 5 or 10 cm, and the side groove blocks are combined in a step shape so as to match the desired downflow gradient at the bottom. Inverted concrete is cast on site, and a smooth and uniform channel gradient can be formed in the extension direction. A top cover with a drainage function is placed over the entire extension. Hakodate-type side groove with improved scavenging performance.

Images