JP2007063886A - Box culvert-type side ditch with enhanced tractive performance constituted by placing top slab lid with drainage function - 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, a slope-variable side ditch with high constructibility and an easily-cleanable box-culvert type side ditch, and makes construction cost and maintenance cost lower. <P>SOLUTION: In this box culvert-type side ditch with enhanced tractive performance which is constituted by placing the top slab lid with a water collecting function, the top slab lid can be structurally placed by opening a part of a top slab, a surface is formed in such a shape as to have a drainage function with a great water collecting effect, 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. A culvert-type side ditch block enables the free downflow slope to be formed by combining the culvert-type side ditches together. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a concrete box-shaped gutter that drains surface water from rainwater, etc., and improves the water collecting function on the upper surface of the gutter and reduces the maintenance cost for cleaning. In addition, as a cross section of water flow, it is intended to provide a box-type gutter that allows a drainage slope to be freely formed despite the road slope.

  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 attaching and detaching, but this also serves as a water collecting hole for flowing the running water on the road surface into the gutter at the time of raining. Therefore, it was possible to collect water only with a narrow width of 20 to 30 mm, and there was almost no water collection efficiency. 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, because the bottom part is formed integrally, it cannot be used freely on a road with a flat slope or reverse slope like a free slope side groove, and a drainage slope cannot be formed freely, 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. For free-gradient side grooves, foundation concrete is placed and hardened, then the body is enforced and invert concrete is placed on the bottom, and after it is hardened, a lid may be installed, and backfilling is completed. Then you can go there. 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, the Hakogata-type side gutter is completed in one installation, so it can be said that the workability is fast, 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 quickly due to surface drainage and easily accumulate. 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 groove is formed so that it covers the bottom concrete part that is either cast in-situ in a convex shape or precast according to the drainage gradient, with a gate-shaped side groove with slits on the top plate partially or partially with openings. There is a free-gradient side groove placed on the top plate part and an opening communicating with the inside and outside of the top plate part, and there is a box-type side groove on which a grating lid is placed between the top plate parts. You can see the bottom, and the mud pool and the scent of the pedestrians give a sense of discomfort due to a synergistic effect, and the scenery is also incongruent. In addition, if a wheelchair, a baby carriage, or a bicycle wheel fits into the groove, it becomes a guide and the wheel is difficult to move from side to side, hindering running, or falling over. 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 are cases where the cover plates reinforced with elastic fixed beams with a plurality of reinforcing bars used in parking lots where only light vehicles such as passenger cars enter and exit in the Kanto area are damaged.

 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 side gutters used increased, a drastic reduction in public construction costs has led to the 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.
Japanese Patent Laid-Open No. 7-18723 JP-A-8-31980 JP 2003-221864 A

  The problems we are trying to solve are the points that have been explained so far. To improve the water collecting function of the surface against these, to make the drainage groove different from the full-line slit so as not to break, the surrounding landscape. Can be matched, can cope with various usage conditions, reduce the number of cleanings and make it a low-cost, low-flowing cross-section, and maintain high scavenging performance even on road gradients where it is difficult to obtain a waterway gradient As a result, it was possible to form a flexible channel gradient, and concrete can be placed after refilling was completed. It is said.

  The present invention is a box-shaped side groove whose surface is adjusted to various effective cross sections and has a shape with a high water collecting effect and a drainage function, and the flow down cross section as a cross section having high scavenging properties. It can be combined, or it can be formed with a small amount of concrete so that a free channel gradient can be formed. The main features are that the surface water collecting function is high, the scavenging ability and the flow ability are high, the maintenance can be easily achieved, and it can be carried out at low cost.

(1) In the invention described in claim 1, the flow-down cross section of the box-shaped side groove has a steeply steep V shape, reverse convex shape, elliptical shape or oval shape, and both ends and the central portion of the top plate portion. As a noise-dissipating type lid-type or hanging-lid type mounting type structure, the top plate of the side groove and the top surface of the top plate cover are made into an L-type, a loose V-type or a dish-shaped shape with high rainwater collecting effect on the road surface, A top plate lid having a drainage function is provided, characterized in that a partial drainage groove is formed in the lower water collecting portion of the top plate and the cover plate so as to flow down below the cross section of the lower side groove. Hakodate-type side groove with improved scavenging performance.

(2) In the invention described in claim 2, the depth of the box-shaped side groove having improved scavenging performance described in the item (1) is set in steps of 10 cm, and the side groove blocks are combined in a step shape to extend in the extending direction. A box-shaped side groove with improved scavenging performance, which is provided with a top plate cover having a drainage function, characterized by being able to form a stepwise downflow gradient.

(3) The invention as set forth in claim 3 is characterized in that the depth of the box-shaped side groove with improved scavenging performance according to item (1) is set in steps of 10 cm, and the side groove blocks are combined stepwise to A top cover with a drainage function is placed, which is characterized by placing a cast-in-place concrete in accordance with the downflow slope to be able to form a smooth and constant channel slope in the extension direction. Hakodate-type side groove with improved scavenging performance.

  The box-type side groove of the present invention is a noise-dissipating type high-capability falling lid side groove, a noise-dissipating type of free-gradient side groove having high flowability and workability, and a box that is easy to clean. As the mold side groove, it is the ultimate product of the side groove to be aimed at from now on, and it is a universal type, which has the advantage that construction costs can be reduced and maintenance and management costs are low, and it can be easily implemented.

  Embodiments of the present invention will be described below with reference to the drawings. 1 to 20 are perspective views showing basic aspects of the box-shaped side groove of the present invention. FIG. 1 shows a box-shaped side groove 1 in which an opening for placing a top plate lid 2 is formed in the center of the top plate portion. Pedestrian boundary block 8 with double-sided R on the left end side is integrated, and the sidewalk can be used flat or semi-flat with respect to the roadway as an L-shaped shape with high rainwater collecting effect on the road surface It is the perspective view of the main body of the box-shaped side groove 1 made into. However, the gradient of the L-shaped apron portion 9 is formed at 1 to 6% in accordance with the road conditions.

  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. As a noise-reducing type that has been scaled down and made difficult to move, it regulates the gap between the main body and lid on the top and bottom of the four sides in the width and length directions, and on the left and right sides, and also allows displacement and jumping up by direct mounting on the vehicle Projections 14 for preventing the trapezoid are formed in a staggered manner, and the trapezoidal trapezoidal shape with the lower side widened so that mud does not collect as shown in FIG. A drainage groove 12 having a through groove structure is partially formed in the extending direction of the central portion. In addition, at the lower side of the side wall of the main body, both end sides are almost the same as the upper width, and in order to stabilize the installation of the product in practice, and to reduce the product weight, two triangular cuts 15 on one side Is provided.

  In this way, the top surface of the main body and the top cover of the top plate lid are shaped so as to collect water, not just a concrete groove only by slits. Since the drainage groove is formed by mounting it partially, it is made into a partial slit or reinforced with metal fittings, so the end of the drainage groove is not easily damaged even if a load due to direct mounting on the vehicle acts It has become. Since this is common to all the drainage grooves described later, it will not be described later.

  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 having a single side R is integrated on the left end side of the top surface of the top plate, and an L-shaped shape having a high effect of collecting rainwater on the road surface is formed. A box type with a cut-off recess 18 for drainage in the vicinity of the L-shaped base so that water can be collected at the end face in the extension direction of the top plate of the main body. It is a perspective view of the main body of the side groove | channel 1a. 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 on the central opening 10 of the main body top plate, and the top cover is lengthened in the same manner as described above. Both ends of the lower surface are slanted wedge-shaped surfaces 21 and are a noise-dissipating type with a function that is difficult to move as a surface tangent structure, and the rainwater collected in the L-shape flows down below the side groove cross section. As shown in FIG. 6, a drainage groove 12a having a trapezoidal through groove structure with a wide lower side so that mud does not collect is formed in the transverse direction of the central portion. 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. 7 shows a box-shaped side groove 1b in which an opening 10 for placing a top plate lid is formed at the center of the top plate portion, and a reverse semicircular convex shape 11b having a high 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 water collecting effect on the road surface As a trapezoidal trapezoidal structure with a cut groove 13 so that water can be collected in all extending directions. It is a perspective view of the main body of the box-shaped side groove 1b provided with a cut-in recess 18a for drainage, and the top plate part is formed into a brick pattern 31 in consideration of the scenery to the surroundings and the traffic barrier-free method, also serving as a slip stopper It has been done. Further, the gradient 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 gradient in accordance with the height of the end. Further, a drainage hole 29 is formed in the upper part of the side surface to correspond to the recent drainage pavement 30.

  FIG. 8 is a perspective view of a top plate lid 2b having a falling lid type structure that is placed in the central opening 10 of the main body top plate portion. The top plate lid is elongated, and the lid is rotated by direct mounting on the vehicle. In order to prevent misalignment, a vertically long protrusion 14a is formed in four directions on the side surface to add a function to prevent misalignment. As with the main body, it is a loosely offset V-shaped 9a shape in the entire extension direction. In order to provide a water collecting groove of the cut groove 13 and to flow the collected rain water down below the cross section of the lower side groove, as shown in FIG. A drainage groove 12b having a trapezoidal through groove structure with a wider side is partially formed in the extending direction of the groove center.

  FIG. 9 shows a sectional view of the usage 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 groove with an L-shaped shape with some pedestrian boundary blocks protruding sideways, the left side is a semi-flat sidewalk side, the right side is the roadway side, and rainwater is a loose piece of the top plate Water is collected in the water collecting groove of the cut groove 13 at the lower portion of the V-shaped portion 9a closer to the drain groove 12a at the end face of the top plate portion and the side groove from the drain groove 12b at the center of the left groove of the top plate lid 2b. 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, and rainwater permeates through the drainage pavement 30 and is collected. Drained inside. Further, a cut recess 23 is partially provided at a lower portion of the 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. Even if it is used without being struck, it is practically acceptable.

  FIG. 10 shows a box-shaped side groove 1c in which an opening 10 for placing the top plate cover at the full width is formed at the center of the top plate portion. A wide incision step 22a is formed on the left side of the upper surface so that the entire pedestrian boundary block can be placed, and the shape is a V-shaped 9a which is a loose side with high rainwater collecting effect on the road surface. 7 is a perspective view of the main body of a box-shaped side groove 1c provided with a small drainage notch recess 18b on the lower end surface of the V-shaped bottom for drainage from the section. The tile pattern 31a is formed, and the wide incision step 22a is provided with a pedestrian boundary block 8 having both sides R on the site, and an L-shaped sidewalk with high rainwater collecting effect on the road surface However, it has a structure that can be used as a flat or semi-flat type for the roadway. Ri, by installing a walking road boundary block 8a that is a single-sided R, sidewalk portion, in which a structure that can be used in 15~25cm raised mound up type for road section. The slope of the top plate portion of the offset V shape 9a is the same as described above, and the lid hanging portion is an oblique arch-shaped surface 21a.

  FIG. 11 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. The top plate lid is elongated, and both ends of the lower surface of the cover plate are further extended. An inclined wedge-shaped surface 21 is used as a line contact structure to make it difficult to move, and to prevent the lid from slipping, an eraser is added with a function of providing a protrusion 19 that protrudes downward over the entire length of the top plate lid. It is a noise type, and like the main body, a pedestrian boundary block is installed at the site to make an L shape. The collected rainwater flows down below the side groove cross section, so that mud does not collect. As a drainage groove 12c having a trapezoidal through-groove structure with a wider width, a drainage grating 3 made of resin in FIG. It is partly formed in the extending direction of the The upper surface are formed tile pattern 31a is. In addition, as in the above-described FIGS. 4 and 5, in the state where 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-type structure is obtained after construction.

  The use situation sectional view is shown in FIG. 13. A vehicle entering type in which the protruding height from the roadway is 5 cm and the side of the roadway is inclined to the wide cut step 22 a formed at the left end of the main body. The left side is a semi-flat sidewalk side where the vehicle crosses, and the right side is the left side. On the side of the roadway, rainwater is collected at a low part of the L shape, and passes through the drainage notch 18b on the end face of the top plate part and the drainage grating 3 at the center of the top cover 2c, and from the drainage groove 12c to the bottom of the side groove cross section. To be flowed down. Further, in order to stabilize the product in practice and reduce the product weight, a single trapezoidal cut 15b is provided on one side of the lower side wall of the main body.

  FIG. 14 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 portion. 11d, from the center of the top plate to the left end, a 2 cm high sidewalk type walkway boundary block 8c is integrally formed as an L-shaped apron 9 with the rainwater collected at the lower side groove The drainage groove 12d for flowing down the cross section is partially formed in the extending direction of the central portion, and is formed of a rust-proof steel shown in FIG. 16 in order to prevent corner chipping around the drainage groove 12d. The drainage metal fitting 3a is embedded and integrated as shown in FIG. 17, and is formed as a drainage groove 12d having a trapezoidal through-groove structure with a wide lower side so that mud does not collect, and the lid hanging portion is inclined flat. Of the main body of the box-shaped side groove 1d having a wedge-shaped surface 21 It is a visual diagram. The thickness of the drainage metal fitting 3a shown in FIG. 16 is 1 to 2.3 mm, the width is 10 to 30 mm, the height is 20 to 30 mm, and the gutter 16 for embedding in concrete at the lower end is 10 to 30 mm. It is made of a stainless steel plate that is formed with a width of 2 mm and is provided with a number of holes 17 to increase the adhesion of concrete and is subjected to a rust prevention treatment like a bowler hat.

  FIG. 15 is a perspective view of a top plate lid 2d having a cover-lid structure that is placed across the opening 10a at both ends of the top plate portion of the main body. Both ends of the lower surface are inclined arch-shaped surfaces, making it difficult to move as a line contact structure and flattening beside the inclined flat wedge-shaped surface 21 of the main body cover hanging portion in order to prevent the cover plate from shifting. It is a noise-reducing type with the function of providing a flat surface 20 part, and has an L-shape integrally formed with a sidewalk-crossing type pedestrian boundary block 8c as in the main body, and as shown in FIG. 16 is formed by embedding and integrating the rust-proof drainage metal fitting 3a shown in FIG. 4 and 5 or 10 and 11, the top plate lid 2d is installed in a state where both sides are restrained and fixed by a rolling material such as an asphalt layer. It becomes a box-type structure.

  FIG. 18 shows a box-shaped side groove 1e formed with an opening 10a for placing a top cover on both ends of the top plate part in the front-rear direction. In the central part of the top plate top surface, a symmetrical symmetric V-shaped 9b shape with high rainwater collecting effect on the road surface is collected at a low place and widened so that it can be drained under the cross section of the lower side groove. As an inverted trapezoid, drainage grooves 12e for flowing down are partially formed in the central part in the extension direction, and as shown in FIG. 21, the upper trapezoid is widened so that mud does not accumulate below it. The drainage groove 12e with a convex through-groove structure with a wide bottom is mounted with the drainage fitting 3b of FIG. 20 that can be removed in the event of an emergency, so that it can be attached or removed with one touch. On the inner side of the lower end of the Two brackets are formed on one side, and the bracket 14 is mounted on the main body in such a manner that the protrusion 14e of the hook bracket bites under the protruding portion 14d near the center of the drainage groove 12e. It is a perspective view of the main body of the box-shaped side groove 1e with the lid hanging portion as an oblique arc-shaped surface 21b, and a cut recess 23 is partially provided at a low portion of the inverted ellipse 11e, This is to make it easy to adhere when placing concrete, so that the slope of the waterway can be taken freely. When there is a road slope and the waterway slope can be taken sufficiently, the concrete is hit at the bottom. Even if it is not used, there is no problem in practical use.

  FIG. 19 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. The top plate lid is elongated, and the lid plate The lid hanging portions at both ends of the lower surface are inclined arc-shaped surfaces 21b, and as an arch-shaped surface contact structure, horizontal projections 14c for preventing rotation and misalignment are formed vertically on the side surfaces in the width direction. The drainage groove 12e for flowing rainwater collected by the loosely symmetrical V-shaped 9b down to the lower side groove section is formed as a noise reduction type that is formed in two rows and two rows in the length direction. Is formed by placing the drainage metal fitting 3b of FIG. 20 partially in the extending direction of the central portion. Further, in order to stabilize the product in practical use and reduce the product weight, two diagonally-shaped triangular cuts 15c are provided 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 recessed portion 24 for handling for installing a 120 mm lid is formed, and it is configured by four pieces per main body. FIG. 23 shows a cross-sectional view of the usage situation. However, since the lid 5 is placed, the upper part of the side wall is inflated, and there is a problem that the backfill material does not easily enter the protruding lower part and is difficult to roll. Since the upper part of the side wall has a cantilever structure fixed with the bottom plate, if the back plate 5 is not backfilled after being placed, the upper part of the main body is bent by the rolling load, and the cover plate 5 is fitted. There was also a drawback of disappearing. In addition, since the length of the cover plate 5 is as short as 0.5 m, it is displaced by direct mounting of the vehicle, it is flipped up, rattles, the cover plates and each other between the cover plate and the main body, and the corner chip and damage are severe. Expenses were required for maintenance.

  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 handle for installing the cover plate 5 a having a depth of 20 to 25 mm and a width of 100 to 120 mm on one side. A concave portion 24a is formed, and the main body is constituted by two sheets. Although the use situation sectional view is shown in FIG. 25, in order to place the cover plate 5a, the upper step portion of the side wall swells, and there is a problem that the backfill material hardly enters the protruding lower portion and is difficult to roll. Since the lower end of the side wall is a cantilever structure fixed by the upper load-bearing beam 25, 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 curing. Further, the total number of the cover plates 5a may be half of the drop cover side groove 4. However, since the cover length is as short as 0.5 m, corner breakage and breakage are severe, and maintenance is expensive. This is the same as the drop lid side groove 4.

  Lastly, the box-shaped side groove 8 having an integral box type structure is generally as shown in FIG. 26, and the flowing water section is almost rectangular 11f in accordance with the lid-side groove 4 and the free-gradient side groove 6. . However, in recent years, it has become possible to find a semicircular or circular cross section of the flowing water, which is a commercial product of a fume tube with a medium shape and an outer periphery reinforced with 360 ° concrete. Some of them have a dish-like shape with a loose upper surface, but the mainstream is flat and a lot of mekras, but as shown in FIG. Only the drainage groove forming the groove 28 is attached. However, even if this elongated slit groove 28 is partially provided in the vertical direction, it is not formed in the entire extension line, so when it is installed in a residential area or the like, between the groove and the groove with time. Sediment accumulates and obstructs the normal flow at the edge of the road, and aesthetically does not match the surrounding landscape. 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.

  Then, the feature of the thing of this plan is demonstrated. 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. Compare each of the mold side grooves 1 to 1e with a width and depth of 1: 1 of 30 cm. 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. The conventional road side gutter can only be a free-gradient side gutter 7 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 1 a having a steep reverse elliptical convex shape 11 a having a high flow rate at a low flow rate in the flow down cross section shown in FIG. 4 and FIG. 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 water depth.

  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 concrete is placed on the open bottom of the mounting portion of the top cover 2 to form a water channel gradient so that a free flowing gradient can be formed in the extending direction. In the conventional rectangular free-gradient side groove 6, the invert concrete 26a must be driven 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 level of the invert concrete 26a in the lower part can be made quite fast as well. is there.

  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.

  Apart from this, FIG. 30 shows 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.

  Incidentally, a drainage groove 12e is partially formed as a left-right symmetrical loose V-shaped 9b shape having a high effect of collecting rainwater on the road surface over the entire surface of the main body of the box-shaped side groove 1e and the top plate lid 2e. Therefore, the rain due to rain water on the roadway and sidewalk is quickly collected and collected in the drainage groove 12e, and then flows down under the side groove cross section, so there is no accumulation of earth and sand on the surface, and it is always beautiful and matches the surrounding landscape To do. The drainage groove is formed by using drainage resin gratings or metal fittings 3, 3a, 3b, a simple through-groove structure, or a cut groove to collect water in all extending directions. There are those provided with 13, which are used according to the conditions and landscape of the site.

  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 comply with 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 previous products can be integrated.

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. FIG. 3 is a cross-sectional view of a usage situation in which the top cover of FIG. 2 is combined with the upper part of the main body of FIG. 1. 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. FIG. 6 is a cross-sectional view showing a usage situation in which the top plate cover of FIG. 5 is combined with the upper part of the main body of FIG. 4. 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 cover which formed the notch which can mount the pedestrian road boundary block used for FIG. FIG. 9 is a cross-sectional view of a usage situation in which FIG. 7 and FIG. 8 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 | foundation aspect of the grating for drainage formed with resin which embeds and integrates in FIG. FIG. 13 is a cross-sectional view of the usage situation in which FIG. 10, FIG. 11 and FIG. 12 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 walkway boundary block of the sidewalk crossing type used in FIG. It is the perspective view which showed the basic | foundation aspect of the metal fitting for draining integrated in FIG. 14 and FIG. FIG. 16 is a cross-sectional view of the usage state in which the drainage fitting of FIG. 15 is embedded in the main body top plate portion of FIG. 14. It is the perspective view which showed the basic aspect of the box side groove | channel main body which mounted the metal fitting for drainage as a loose V shape. It is the perspective view which showed the basic aspect of the top cover which mounted the metal fitting for drainage as a loose V shape used for FIG. FIG. 20 is a perspective view showing a basic mode of a drainage fitting placed in FIGS. 18 and 19. FIG. 21 is a cross-sectional view of a usage state in which the drainage metal fitting of FIG. 20 is installed on the main body top plate portion of FIG. 18. 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. 25 is a cross-sectional view of the usage state of FIG. 24. 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 cover 3 Draining grating 3a-3b 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 Pedestrian boundary block with one side R 8b Pedestrian boundary block of vehicle entry type 8c Pedestrian boundary block of sidewalk crossing type 9 Apron part 9a Loose V shape 9b Symmetrical loose V form 10 Central opening 10a Openings at both ends 11 Steep V-shaped 11a Steep reverse elliptical convex 11b Reverse semicircular convex 11c Reverse semioval 11d Steep reverse elliptical 11e Reverse elliptical 11f Rectangle

12 to 12e Drainage groove 13 Notch recess groove 14 to 14d Protrusion 14e Hook fitting protrusion 15 to 15c Notch 16 鍔 17 Adhesion hole 18 to 18b Drain notch recess 19 Protruding protrusion 20 Flat surface 21 Oblique wedge-shaped surface 21a Oblique arch-shaped surface 21b Oblique arc-shaped surface 22 Partial cut step 22a Wide cut step 23 Partial cut recess 24-24a Hand recess 25 Load bearing beam 26 Invert concrete 27 Basic concrete 28 Slit groove 29 Drain hole 30 Drainable pavement 31 Brick pattern 31a Tile pattern

Claims (3)

  The flow cross-section of the box-shaped side groove has a steeply steep V shape, reverse convex shape, elliptical shape, or oval shape, and both the top and bottom of the top plate part are of a noise-dissipating drop-type lid and hanging type As a mounting structure, the top plate of the side groove and the top surface of the top plate cover are formed into an L shape, a loose V shape, or a dish shape with a high effect of collecting rainwater on the road surface, and the water collection of the top plate and the top cover plate is low A box-type side groove with improved scavenging performance, in which a top plate cover having a drainage function is formed, wherein a partial drainage groove is formed in the lower part of the side groove to flow down. .   The depth of the box-shaped side groove with improved scavenging performance according to claim 1 is set to 10 cm increments, and the side groove blocks are combined in a step shape so that a stepwise downflow gradient can be formed in the extending direction. A box-shaped side groove with improved scavenging performance, which is provided with a top cover having a drainage function.   The depth of the box-shaped side groove with improved scavenging characteristics according to claim 1 is set in steps of 10 cm, and the side groove blocks are combined in a step shape so that the cast-in-place concrete is cast in accordance with the desired flow gradient at the bottom. A box-shaped side groove with improved scavenging performance, which is provided with a top cover having a drainage function, characterized in that a smooth and uniform channel gradient can be formed in the extending direction.

Images