JP3475906B2 - Free slope type ditch - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete box-type gutter for draining surface water such as rainwater, which can freely form a drainage gradient regardless of road gradient and improve water collecting ability and landscape. The present invention is intended to provide a free-gradient type box-ditch gutter capable of achieving the above.

[0002]

2. Description of the Related Art Gutters for roads that have been conventionally used are
A U-shaped cross section with a U-shaped upper surface and a gutter cover with a length of about 50 cm is placed on the entire length of the upper surface. In addition, a gutter lid is placed on the opening on the upper surface, and the free slope side groove that allows the drainage gradient to be formed freely by opening the bottom surface entirely, or an elongated slit-shaped opening for drainage on the upper surface with a box-shaped cross section It is well known that partly or full-length box-shaped gutters are formed, and it is widely used in parks, plazas, schools, etc. other than roads.

However, since the gutter lid is placed on the upper surface of the falling lid side groove and the free slope side groove, rattling noise or corner breakage is likely to occur when the vehicle is running. In addition, the gutter lid is provided with a hand hole when putting on and taking off the water, or as a water collecting hole for pouring running water on the road surface into the gutter when it rains. Since it is arranged parallel to the flow direction of
The water was collected only in a narrow width of 20 to 30 mm, and the water collection efficiency was low. On the other hand, if it is a box-type gutter, no lid is used, so rattling noise and corner chipping do not occur, and the slit-shaped opening in the center of the upper surface is orthogonal to the direction of rainwater flow. Since they are arranged in a circle, the efficiency of collecting water during rainfall is very high. However, since the bottom part is formed integrally, it is not possible to freely form a drainage gradient by using it on a road with a flat slope or a reverse slope like a free slope gutter,
In many cases, there were restrictions on the use, such as having to use it according to the vertical gradient of the road.

Therefore, recently, Japanese Patent Laid-Open No. 9-302758
As described in No. 3, a box-type gutter capable of freely forming a drainage gradient has been proposed. This is constructed by simply placing a gutter with a cross-section gate type on the foundation surface so as to cover the bottom concrete part that was cast in situ or precast according to the drainage gradient. A narrow continuous rainwater inlet is formed over the entire upper surface of the gutter, leaving only a plurality of composite reinforced concrete beams and left and right separated into an integral structure, and a small cross-sectional area of the beam itself. By inducing cracks, only the positive and negative main rebars work as a single steel beam, and a flexible structure with slightly elastic elasticity is obtained on the upper beam.The advantages of the box gutter without gutter lid and drainage It combines the advantages of free-gradient gutters with which the gradient can be freely formed.

[0005]

However, various problems are pointed out in the proposal by the above-mentioned JP-A-9-302758. First of all, it is said that in the case of multi-reinforced concrete beam beams on the upper surface of the gutter block, cracks are intentionally induced to give the upper surface a flexible structure, but in this case, the reinforcing bars will be repeatedly deformed, so the rust prevention applied to the surface Not only will the galvanizing strips peel off and become prone to rust, but the yield strength of the reinforcing bar will be destroyed, making it impossible to withstand the design load, and there is a high risk of eventually breaking or collapsing. Further, since the slit hole is formed on the entire top surface of the gutter block to be used, the drainage gradient is formed by 5 to 1 from the inner width of the gutter block.
There is no choice but to combine it with a bottom concrete part that is 0 mm narrow and convex in-situ or precast, and in this case, the gutter block is simply covered, so there will be a gap in the lower end of the side wall in the entire extension direction, There was a great risk of water leakage. In addition, the flat shape is adopted as the surface shape of the gutter block including the gutter lid, but the earth pressure acts on the side wall to cause the upper surface to bend in a mountain shape, so running water from the road surface will reach the end of the gutter. Even if it arrives
Immediately, the water did not flow from the slit hole provided on the upper surface of the gutter into the gutter, and only on the upper surface of the gutter, the rapid drainage could not be achieved.

[0006]

Therefore, the present invention was devised after repeated studies to solve the above-described problems in the prior art, in which the lid mounting opening on the upper surface is formed into a load bearing beam. By using the gutter block formed with the same width as the above, by inserting the invert concrete from the opening on the upper surface after installing the gutter block, any drainage gradient can be freely formed, and then the gutter lid is placed. It has succeeded in appropriately solving the problem by constructing it integrally, and is as follows.

(1) In a gate-shaped gutter block which has one bearing beam at the center of the upper surfaces of both sidewalls or two bearing beams at both ends, and has a bottom portion entirely opened, a lid mounting opening portion on the upper surface. Is formed as a fitting portion having the same width as that of the load-bearing beam, and the surface shape of the load-bearing beam and the gutter lid is a dish shape, a substantially V shape, a single inclined shape, an L-shaped shape, or a flat shape. 1 to several slit holes are provided in the vertical or transverse direction toward the side, and the gutter lid is placed in the opening of the gutter block to be integrally configured. A free-gradient type box gutter which is characterized in that a pavement material is filled in a portion or an upper end of one side to form a notch for restricting deviation of the gutter lid.

(2) A water collecting groove at the end of the load bearing beam, and / or 1 to 1 in the longitudinal or transverse direction near the center of the load bearing beam.
The free-gradient type box gutter according to the item (1), characterized in that several slit holes are formed.

(3) Item (1) or (2) above, wherein a slit grating made of metal or resin is embedded in a slit hole position provided near the center of the load bearing beam or gutter lid. Free slope type box gutter described in.

(4) In order to integrally fix the walkway boundary block to the upper surface of the load bearing beam and the gutter lid, several inserts are embedded in the upper surface of the load bearing beam and the gutter lid or several fitting holes are formed. The free-gradient type box gutter according to any one of the items (1) to (3).

(5) A concave portion or a convex portion is formed on each abutting surface of the lid mounting support portion of the gutter block and the gutter lid, or they are fitted with each other by forming a protruding line and a concave portion. Or (1) to (4), which are integrally joined with a connecting member such as an insert and a bolt.
The free gradient type box gutter according to any one of items. The free-gradient type box gutter according to one.

(6) The load bearing beam or the gutter lid surface may be provided with a square or rhombic pattern having the same shape or a combination of different sizes, or an interlocking pattern in a convex shape or a concave shape, or The free-gradient type box gutter according to any one of (1) to (5) above, wherein a geometric pattern such as a brick shape, a circle shape, a rhombus shape, or a wave shape is applied in a groove shape.

(7) An L-shaped heel portion is integrally formed at the lower end portion of the side wall of one side of the gutter block to form a gutter block also serving as a retaining soil, or one to several beamlets are integrally formed at the bottom portion. The free-gradient type box gutter according to any one of the above items (1) to (6).

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION A concrete embodiment of the present invention as described above will be described with reference to the one shown in the accompanying drawings. The one shown in FIG. In addition to having the beam 4, the lid mounting opening 5 on the upper surface is formed as a fitting portion having the same width as the load-bearing beam 4, and the surface shape of the load-bearing beam 4 is a dish shape 32. It is a gutter block 1 having a cross-sectional gate shape that constitutes a free-gradient type box gutter of the present invention in which one slit hole 7 in the longitudinal direction is provided near the portion. Further shown in FIG.
The surface shape is a dish shape 32 similar to that of the above-mentioned gutter block 1, one slit hole 7 in the longitudinal direction is provided near the central portion, and the length is 1 m, which is longer than the conventional one, the free gradient type box of the present invention. It is a gutter lid 2 which constitutes a culvert gutter. The free-gradient type box gutter of the present invention is characterized in that the gutter lid 2 is placed on the lid placing opening 5 of the gutter block 1 to be integrally configured.

Next, FIGS. 3 and 4 show the present invention in which the gutter lid 2 shown in FIG. 2 is placed in the lid mounting opening 5 of the gutter block 1 shown in FIG. FIG. 3 is a cross-sectional view of the free slope type box gutter gutter in an embedded state. Since the gutter lid 2 is firmly pressed by the asphalt layer 24 and the roadbed material 23 from the left and right side surfaces, rattling does not occur unlike the conventional gutters, and noise and corner chipping cannot occur when the vehicle is running. Further, since the surface shapes of the load bearing beams 4 of the gutter block 1 and the gutter lid 2 are dish-shaped 32, rainwater flowing on the road surface is efficiently collected, and further drained quickly by the slit holes 7 provided in the longitudinal direction. be able to. The surface shapes of the load bearing beams and the gutter cover are
Other than the above-mentioned dish shape, it can be appropriately changed and adopted into a substantially V shape, a one-sided inclined shape, an L-shaped shape, or a flat plate shape.

FIG. 5 is a vertical sectional view of the continuously laid product of the present invention. As a means for forming an arbitrary drainage gradient in the gutter of the present invention, similar to the conventionally used free gradient gutter, a base concrete 21 is cast on the foundation crushed stone 20, and the gutter block of the present invention is placed thereon. This can be achieved by placing the invert concrete 22 from the lid mounting opening of the gutter block after installation. Furthermore, in the free-gradient type box gutter shown in FIG. 5, since both the load-bearing beam 4 and the gutter lid 2 of the gutter block are continuously formed with slit holes 7 in the longitudinal direction, the conventional falling lid gutters and free-dip gutters are formed. The water collection efficiency is improved by several steps compared to the hand-held holes provided in the gutters. Incidentally, the problem of water leakage from the lower part of the gutter block in the use of the precast bottom concrete part shown in the prior art occurs in the present invention because the generally popular free slope gutter installation method is adopted. I don't get it.

As another example of the gutter block and the gutter lid which form the free slope type gutter gutter of the present invention, there are a gutter block 1a shown in FIG. 6 and a gutter lid 2a shown in FIG. The gutter block 1a shown in FIG. 6 has two bearing beams 4 and 4 at both ends of both side walls 3 and 3 and the lid mounting opening 5 is formed as a fitting portion having the same width as the bearing beam 4. Further, the surface shape of the load-bearing beam 4 is substantially V-shaped 33, the surface is provided with a square pattern 36, and the water collecting grooves 8, 8 are formed at the ends of the load-bearing beam 4. The gutter lid 2a shown in FIG. 7 has the same surface shape and pattern as the gutter block 1a, has one slit hole 7 in the longitudinal direction near the center, and further forms a convex portion 9 on the bottom surface. ing. When the gutter lid 2a is placed on the lid mounting opening 5 of the gutter block 1a, the convex portion 9 fits into the opening and catches on the gutter lid even if lateral pressure acts on the gutter lid. There is no gap. Further, when the gutter cover having the convex portion 9 is placed on the gutter block shown in FIG. 1, it acts as a tension member against side pressure such as earth pressure, so that the side wall can be prevented from bending.

FIG. 8 shows the side groove block 1a shown in FIG.
It is a top view which shows the state which laid the free gradient type box gutter side groove which mounted the gutter lid 2a of this, and was comprised integrally, continuously.
The water collecting grooves 8, 8 formed at the end portions of the load bearing beams 4 of the adjacent gutter blocks are aligned with each other to form a large transverse water collecting hole, which corresponds to the longitudinal slit hole 7 formed in the gutter lid 2a. In addition, improve water collection efficiency. In addition, the rectangular pattern 36 provided on the surface of the gutter cover 2a and the bearing beam 4 can improve the aesthetic appearance, and at the time of rainfall, rainwater does not flow into the groove portion between the patterns and rainwater does not collect on the pattern surface. It can exert a non-slip effect. The surface pattern is not limited to the square pattern 36 described above, but may be a round shape or a rhombus shape, a combination of these patterns having the same shape or different sizes, or an interlocking pattern having a convex shape or a concave shape. Or
Alternatively, a geometrical pattern such as a brick, a circle, a rhombus, or a wavy shape may be formed in a groove shape, and the groove may be appropriately selected and used. This is the same in all the gutters described in the present invention.

In addition, the gutter block 1b shown in FIG. 9 and FIG.
By combining the gutter lids 2b shown in FIG.
That is, in FIG. 9, the length is 3 to 5 m, which is longer than that of the conventional gutter block, the load bearing beams 4 are provided at two positions on both ends, and the surface shape of the load bearing beams 4 is a single inclined shape 34. 22 which will be described later, near the center of the load-bearing beam 4.
It is a gutter block 1b in which two slit slits 7 in the transverse direction are provided by embedding a resin slit-shaped grating 31 shown in FIG. 1, and a support step portion 10 is formed on the lid mounting support surface 6 and interlocking is performed on the surface. A pattern 37 is applied. Further, in FIG. 10, the surface shape and pattern are the same inclined shape 34 as the above-mentioned gutter block 1b, the resin slit-shaped grating 31 is embedded near the central portion, and two slit holes 7 in the transverse direction are provided, A mounting step portion 11 is formed on the bottom surface. When the gutter lid 2b is placed in the lid placing opening 5 of the gutter block 1b, the placing step portion 11 and the supporting step portion 10 are fitted together, so that the gutter lid 2b and the gutter block 1b are integrally configured. sell. Further, like the above-mentioned convex surface portion, it functions as a displacement preventing member and a tension member against lateral pressure. The slit-shaped grating 31
Has a function as a protective material to prevent the corners of the slit holes from being chipped or to have various colors to improve the aesthetic appearance,
Metallic materials other than resinous materials may be used. Further, the grating can be appropriately applied to all the gutter blocks and the gutter lids described in the present invention.

FIG. 11 shows the gutter block 1b shown in FIG.
FIG. 11 is a cross-sectional view of the free slope type box gutter gutter of the present invention in which the gutter lid 2b shown in FIG. The gutter cover 2b is pressed down by the adjacent pedestrian road boundary block 25 and the asphalt layer 24 or roadbed material 23 on the roadside, and the support step portion 10 and the mounting step portion 1 are provided.
It is fixed integrally by fitting with 1. Further, since the surface shape is the one-sided inclined shape 34, the rainwater flowing on the road can be swiftly drawn to the end of the road and drained.

Next, notches 12, 12 are formed over the entire length of both ends of the upper surface of the load-bearing beam 4, and slits in the transverse direction are formed near the center of the load-bearing beam 4 provided at two locations on both ends of the upper surfaces of both side walls. FIG. 12 shows a side groove block 1c provided with one hole 7 each. As the gutter lid to be placed in the lid placing opening 5 of the gutter block 1c, for example, notches 12 and 12 are formed over the entire length at both end portions of the upper surface shown in FIG. 13, and a slit hole in the longitudinal direction is formed near the center portion. An example is a gutter lid 2c provided with two 7. FIG. 14 is a cross-sectional view of the free slope type box gutter gutter of the present invention in which the gutter lid 2c is placed on the gutter block 1c and is integrally formed in a buried state. Notch 1 over the entire length
By filling 2 and 12 with the asphalt layers 24 and 24, not only the side groove lid is pressed from the side surface but also downward pressing force is applied, so that it is possible to more stably form an integral structure.

Further, as another gutter block and gutter lid constituting the free-gradient type box gutter of the present invention, a notch 12 extending over the entire length is formed at one end on one side of the upper surface of the load bearing beam 4, and at both end portions of the load bearing beam 4. Form a water collecting groove 8 and make the surface shape a half-inclined shape 34 by half, and also form a circular pattern 38 on the surface, and further provide a fitting hole 13 for fixing the pedestrian road boundary block for each load bearing beam 4. One on the lid mounting support surface 6
The ditch block 1d shown in FIG. 15 in which 0 is formed, and the surface shape and pattern are formed in the same manner as the ditch block 1d described above, and three slit holes 7 in the longitudinal direction are provided near the center portion and placed on the bottom surface. There is a gutter lid 2d shown in FIG. 16 in which the step portion 11 is formed and the road side is narrower than the gutter width. In the case of integrally forming the gutter block 1d and the gutter lid 2d, as shown in the sectional view of FIG.
Overhanging line 28 provided on the bottom surface of the pedestrian road boundary block 25
The pedestrian road boundary block 25 can be integrally fixed to the surface of the side groove by inserting the above into the fitting hole 13 via the mortar or the adhesive 27. Further, a notch 1 formed at one end of the gutter.
2 and the side surface of the gutter lid are filled with the asphalt layer 24 of the roadway, so that the gutter lid can be firmly and stably formed integrally.

Further, as further gutter blocks and gutter lids constituting the free-gradient type box gutter according to the present invention, notches 12 and 12 are formed over both sides of the upper surface of the load-bearing beam 4 to form a surface shape. Is formed as a half inclined shape 34, an interlocking pattern 37 is provided on the surface, and one insert 15 for fixing the pedestrian road boundary block is embedded in each load bearing beam 4, and the lid mounting support surface 6 Recess 14
18 and the surface shape and pattern are formed in the same manner as the above-mentioned gutter block 1e, and the slit-shaped grating 31 shown in FIG. An example is the gutter lid 2e shown in FIG. 19 in which one slit hole 7 is provided. Even when the gutter block 1e and the gutter lid 2e are integrally formed, the gutter block 1e and the pedestrian road boundary block 25 are integrally fixed and used. However, as the fixing means, the protruding line 28 shown in FIG. 20 as well as the means for inserting the fitting hole 13 into the fitting hole 13.
Alternatively, as shown in the cross-sectional view of FIG. 21, a pedestrian road boundary block 25 provided with an insertion hole 30 is used, and a bolt 29 is inserted into the insertion hole 30 to insert the bearing beam 4 or the insert 15 on the surface of the gutter lid 2e. Connect and fix. At that time, mortar or adhesive 27 may be interposed on the bottom surface of the pedestrian road boundary block 25. On the other hand, as shown in FIG. 21, by forming a convex portion 16 on the bottom surface of the gutter lid 2e and fitting it into a concave portion 14 formed on the lid mounting support surface 6 of the gutter block 1e, it is possible to prevent misalignment and rattling. Acts as a tension member against lateral pressure.

FIG. 22 shows an example of the slit-shaped grating 31 adopted in the present invention. The material may be resin or metal, and can be colored in any desired color. In addition, the length can be appropriately changed and used depending on the embedding direction such as the longitudinal direction or the transverse direction and the size of the gutter. When the slit holes formed on the surface of the side groove are formed by using the slit-shaped grating, the corners of the slit holes are prevented from being chipped off, and the colorful coloring enhances the aesthetics and the uniformity of the landscape.

FIG. 23 and subsequent figures show another free-gradient type box gutter according to the present invention. For example, in FIG. 23, the surface shape is formed as an L-shape 35 by integrally forming the pedestrian road boundary block-shaped protrusions 17 on the surfaces of the gutter block 1f and the gutter lid 2f, and the pedestrian road boundary block is formed later. No need to stick. As the gate-shaped gutter block used in the present invention, as shown in FIGS. 24 and 25, there is also a gutter block 1g having an L-shaped heel portion 18 formed at the lower end of one side wall to serve also as a soil retaining member. In addition, in the case of a deep groove such as the gutter block shown in FIG. 26, one or a few beam members are provided at the bottom as a reinforcing material for preventing the deflection of the side wall during manufacturing or construction. 19 is integrally formed. The beam 19 at the bottom may be made of concrete, a steel rod, a steel material, or the like as an integral body at the time of block molding, or a groove may be formed at the lower end of the side wall and fixed later.

As described above, in the free gradient type box gutter of the present invention, the gutter block having the lid mounting opening on the upper surface formed as a fitting portion having the same width as the load bearing beam, and the surface shape and pattern And the gutter lid having the same width as that of the load bearing beam are combined with each other to form an integral structure, so that any drainage gradient can be formed by the same method as the conventional free gradient gutter. However, since the conventional construction procedure, method, steps, etc. are not changed at all, the construction company can easily carry out the construction as usual.

The placed gutter lid is pressed against both sides of the roadbed material or is integrally joined to the gutter block by a connecting member or the like to form a box gutter. There is no rattling noise or chipping of corners, and there is no need to replace damaged gutter lids after laying the gutters, complaints from the local residents about rattling noise, and how to deal with them.

According to the present invention, various patterns can be applied to the surface of the gutter and colorful slit-shaped gratings can be used, so that the landscape of the adopted area can be improved and the area can be differentiated from other areas. Not only is it easy to measure, but it is easy on the eyes of people who come and go, and it makes you feel happy just by going through it, which can contribute to the creation of a comfortable living environment.

The slit holes formed on the surface of the free slope type box gutter side groove of the present invention are arranged orthogonally to the direction of the flow of rainwater, and the surface shape of the side groove is a dish shape or a substantially V shape. Since it adopts a shape that allows rainwater to be easily guided to the slit holes, such as a one-sided shape, the water collection efficiency during rainfall is dramatically improved compared to conventional gutters.

[0030]

According to the present invention as described above, not only the drainage slope can be formed freely regardless of the road slope, but also the collection efficiency of rainwater and the landscape can be improved, and the existence of the gutter lid is effective. It is an invention that is commercially effective and will be pleasing to local residents without any problems such as rattling noise or chipping.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a gutter block which constitutes a free gradient type box gutter according to the present invention.

FIG. 2 is a perspective view showing an example of a gutter lid which constitutes a free-gradient type box gutter according to the present invention.

FIG. 3 is a cross-sectional view showing a buried state of the gutter block shown in FIG.

FIG. 4 is a cross-sectional view of a free slope type box gutter according to the present invention in which the gutter block of FIG. 1 and the gutter lid of FIG. 2 are combined.

5 is a vertical cross-sectional view of the free-gradient type box gutter of the present invention shown in FIG.

FIG. 6 is a perspective view showing another example of a gutter block which constitutes the free gradient type box gutter according to the present invention.

FIG. 7 is a perspective view showing another example of the gutter lid which constitutes the free-gradient type box gutter according to the present invention.

8 is a plan view of a free slope type box gutter gutter of the present invention in which the gutter block of FIG. 6 and the gutter lid of FIG. 7 are combined.

FIG. 9 is a perspective view showing still another example of the gutter block which constitutes the free-gradient type box gutter according to the present invention.

FIG. 10 is a perspective view showing still another example of the gutter lid which constitutes the free-gradient type box gutter according to the present invention.

11 is a cross-sectional view of a free slope type box gutter gutter of the present invention in which the gutter block of FIG. 9 and the gutter lid of FIG. 10 are combined.

FIG. 12 is a perspective view showing still another example of the gutter block that constitutes the free gradient type box gutter according to the present invention.

FIG. 13 is a perspective view showing still another example of the gutter lid which constitutes the free slope type box gutter side groove of the present invention.

14 is a cross-sectional view of the free slope type box gutter gutter of the present invention in which the gutter block of FIG. 12 and the gutter lid of FIG. 13 are combined.

FIG. 15 is a perspective view showing still another example of the gutter block that constitutes the free gradient type box gutter according to the present invention.

FIG. 16 is a perspective view showing still another example of the gutter lid which constitutes the free slope type box gutter side groove of the present invention.

17 is a cross-sectional view of the free slope type box gutter gutter of the present invention in which the gutter block of FIG. 15 and the gutter lid of FIG. 16 are combined.

FIG. 18 is a perspective view showing still another example of the gutter block which constitutes the free gradient type box gutter according to the present invention.

FIG. 19 is a perspective view showing still another example of the gutter lid which constitutes the free gradient type box gutter side groove of the present invention.

20 is a cross-sectional view of the free slope type box gutter gutter of the present invention in which the gutter block of FIG. 18 and the gutter lid of FIG. 19 are combined.

FIG. 21 is a view of the free slope type box gutter gutter of the present invention obtained by combining the gutter block of FIG. 18 and the gutter lid of FIG.
It is another sectional view different from FIG.

FIG. 22 is a perspective view showing an example of slit-shaped grating used in the present invention.

FIG. 23 is a perspective view showing still another free gradient type box gutter according to the present invention.

FIG. 24 is a perspective view showing still another example of the gutter block which constitutes the free gradient type box gutter according to the present invention.

FIG. 25 is a cross-sectional view showing an embedded state of the free slope type box gutter side groove of the present invention in which the side groove block of FIG. 24 is combined with a side groove cover.

FIG. 26 is a perspective view showing still another example of the gutter block which constitutes the free slope type box gutter according to the present invention.

[Explanation of symbols]

1-1h Gutter block 2 ~ 2g gutter lid 3 side walls 4 bearing beams 5 Lid mounting opening 6 Lid mounting support surface 7 slit holes 8 water collection ditch 9 convex part 10 Support step 11 Mounting step 12 notches 13 Fitting hole 14 recess 15 inserts 16 convex 17 Walkway boundary block-shaped bump 18 heels 19 beam 20 Basic crushed stone 21 base concrete 22 Invert concrete 23 Roadbed material 24 asphalt layer 25 Pedestrian Boundary Block 26 Paving materials 27 Mortar and adhesive 28 Overhanging muscle 29 Volts 30 insertion hole 31 slit-shaped grating 32 dish shape 33 V shape 34 One-sided inclined shape 35 L shape 36 square pattern 37 Interlocking pattern 38 round pattern

Claims (7)

(57) [Claims] 1. A gate-shaped gutter block having one load bearing beam at the center of each of the upper surfaces of both sidewalls or two load bearing beams at both ends, and a bottom-shaped gutter-shaped gutter block having a lid mounting opening on the upper surface. It is formed as a fitting part having the same width as the load-bearing beam, and the surface shape of the load-bearing beam and the gutter lid is dish-shaped or substantially V-shaped, or one-sided inclined shape, L-shaped or flat shape, close to the center part of the gutter lid. 1 to several slit holes are provided longitudinally or in the transverse direction, and the gutter lid is placed on the opening of the gutter block to be integrally configured, and only the gutter lid,
Alternatively, a free-gradient type box gutter is characterized in that both upper ends or both upper ends including a load bearing beam are filled with a pavement material to form notches for restricting the deviation of the gutter lid. 2. A water collecting groove at the end of the load bearing beam and / or one or several slit holes formed in the longitudinal or transverse direction near the center of the load bearing beam. Free slope type box ditches described. 3. A metallic or resin slit-shaped grating is embedded in a slit hole position provided near the center of the load-bearing beam or the gutter lid.
Alternatively, the free-gradient type box gutter described in 2. 4. In order to integrally fix the walkway boundary block to the upper surface of the load bearing beam and the gutter lid, several inserts or several fitting holes are formed on the upper surface of the load bearing beam and the gutter lid. The free slope type box gutter according to any one of claims 1 to 3. 5. A concave portion or a convex portion is formed on each abutting surface of the lid mounting support portion of the gutter block and the gutter lid to fit the gutter block,
Alternatively, the free-slope type box according to any one of claims 1 to 4, wherein the protrusion and the recess are formed and inserted, or the insert and the connecting member are integrally joined by a connecting member such as a bolt. Ditch on the dock. 6. A convex or concave shape, such as a square shape, a round shape, a rhombus shape pattern or an interlocking shape pattern, which is formed by combining the same shape or different sizes, on the surface of the load-bearing beam or the gutter lid, or The free-gradient type box gutter according to any one of claims 1 to 5, wherein a geometric pattern such as a brick shape, a circle shape, a rhombus shape, or a wave shape is applied in a groove shape. 7. An L-shaped heel portion is integrally formed at the lower end portion of one side wall of the gutter block to form a gutter block that also serves as a soil retainer, or one to several beamlets are integrally formed at the bottom portion. The free-gradient type box gutter according to any one of claims 1 to 6, which is characterized in that.