Hand construction method

Abstract

To make it easy to form a flat place part of a hump at an arbitrary place on a road, and to be able to quickly form humps according to standards by continuous placing by mechanical construction.SOLUTION: There is provided a hump construction method for constructing a hump on a road using a paving material, the hump comprising a first layer rectangular flat area, first layer slope areas formed in front of and behind the rectangular flat area, and a second layer flat area and slope areas formed on upper surfaces of the rectangular flat area and the first layer slope areas, the hump construction method comprising: (1) a rectangular form installation step, (2) a rectangular flat place area placing step, (3) a rectangular form removal step, (4) a slope form installation step, (5) a first layer slope area placing step, (6) a slope form removal step, (7) a second layer form installation step, (8) a second layer placing rolling compaction step, and (9) a second layer form removal step.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a hump construction method for constructing a hump on a road using a paving material. [Background technology]

[0002] BACKGROUND ART In order to suppress the traveling speed of vehicles, humps may be installed on roads. Regarding the shape of road humps, the Ministry of Land, Infrastructure, Transport and Tourism has taken into consideration the vehicle speed control effect, safety, noise, vibration, etc., and has stipulated that the standard height of the flat part of the convex part (flat area) should be 10cm, and the longitudinal length should be 2m or more, that the standard longitudinal gradient of the sloping part of the convex part (slope part) should be 5% on average and 8% or less at most, and that the areas where the slope part meets the road surface and flat area should be smooth. Patent Document 1 (JP 2006-342582 A) describes that the main body (10) and the sloped portion (11) have a three-layer structure consisting of a base layer (21), a paving layer (22) covering the base layer (21), and a covering layer (23) covering the paving layer (22); that the base layer (21) is made of a permeable and strong material (for example, permeable asphalt concrete); that the paving layer (22) uses a paving material containing rubber chips formed from waste tires; and that the covering layer (23) uses virgin rubber chips colored to a desired color (see, in particular, paragraph 0023 and Figure 2). Furthermore, Patent Document 2 (Patent Publication No. 6686110) describes a method in which formwork is set up on both sides of the road where humps are to be constructed, a hump gauge sheet with a predetermined vertical curved section is attached to the inside of the formwork, and the paving material is spread out onto the inside of the formwork while being rolled so that the curve of the vertical curved section of the hump gauge sheet matches the surface of the paving material inside the formwork (see especially claim 1 and figures 1 and 4).

[0003] However, with these hump construction methods, a flat area is formed across the entire intersection or crosswalk, with sloped areas formed on both sides of the intersection (see paragraph 0021 and Figure 1 of Patent Document 1, and paragraph 0029 of Patent Document 2), which poses the problem that it is not easy to form a flat area at any desired location on the road. Furthermore, according to the hump construction method of Patent Document 2, the longitudinal inclination of the rubbing section (slope section) can be constructed to form a predetermined longitudinal curve, but the hump (9) needs to be constructed so that the surface of the rubbing section (9b) matches the longitudinal curve section (3) of the hump gauge sheet (1) (see paragraph 0033), which creates the problem that it is difficult to perform continuous casting by machine. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2006-342582 [Patent Document 2] Patent No. 6686110 Summary of the Invention [Problem to be solved by the invention]

[0005] The present invention has as its first objective the solution to the above problems and the ability to easily form flat sections of humps at any location on a road, and as its second objective the ability to quickly form humps that meet standards by continuously pouring them into the road using machinery. [Means for solving the problem]

[0006] The invention of claim 1 is a hump construction method for constructing a hump on a road using paving materials, the hump consisting of a first layer of rectangular flat section, first layer of slope sections formed before and after the rectangular flat section, and a second layer of flat section and slope section formed on the top surfaces of the rectangular flat section and the first layer of slope section, The method is characterized by carrying out the following steps (1) to (9). (1) Around the location where the rectangular flat area is to be constructed Consists of a flat plate of a fixed height Rectangular formwork installation process. (2) A rectangular flat area pouring process in which paving material is poured inside the rectangular formwork so that the height of the rectangular formwork and the height of the rectangular flat area match. (3) A rectangular formwork removal process for removing the rectangular formwork. (4) A slope formwork installation process for installing a slope formwork along the extension line of the side edge of the rectangular flat area. (5) A step of pouring the first layer of slope material into the formwork for the slope while spreading it out so that the length of the first layer of slope material is the same as the length from the corner of the rectangular flat area to the tip of the formwork for the slope. (6) A slope formwork removal process for removing the slope formwork. (7) A second layer formwork installation process for installing two second layer formworks on the top surfaces of the rectangular flat section and the first layer slope section, parallel to their sides. (8) A second layer pouring and compacting process in which paving material is continuously poured and compacted inside the two second layer formworks by machine construction so that part or all of the second layer flat section and slope section, which are the same length as the second layer formworks, are formed on the upper surfaces of the rectangular flat section and the first layer slope section. (9) A second layer formwork removal process for removing the second layer formwork.

[0007] The invention according to claim 2 is the hump construction method according to claim 1, After a part of the flat section and slope section of the second layer is formed by the second layer formwork removal process, the following steps (10) to (12) are carried out. (10) A process for installing a widened second-layer formwork, in which the second-layer formwork is installed on the upper surfaces of the rectangular flat section and the first-layer slope section, parallel to the side edges of the second-layer flat section and slope section. (11) A widening second layer pouring and compacting process in which paving material is continuously poured and compacted by machine while being spread out on the side edges of the second layer flat section and slope section and inside the second layer formwork so that a portion of the second layer flat section and slope section of the same length as the second layer formwork is formed on the upper surfaces of the rectangular flat section and the first layer slope section. (12) A widening second layer formwork removal process for removing the second layer formwork. [Effects of the Invention]

[0008] According to the hump construction method of the invention of claim 1, after installing a rectangular formwork, the first layer of a rectangular flat surface can be formed by simply pouring paving material inside the rectangular formwork while spreading it out so that the height of the rectangular formwork matches the height of the rectangular flat surface. In addition, two second-layer formworks are placed on the top surfaces of the rectangular flat section and the first-layer slope section, parallel to their sides, and the paving material is continuously poured and compacted by machine onto the inside of the two second-layer formworks while being spread out onto the rectangular flat section and the top surfaces of the first-layer slope section, thereby forming part or all of the second-layer flat section and slope section of the same length as the second-layer formwork, and thus humps that comply with standards can be easily formed by machine construction.

[0009] According to the invention of claim 2, in addition to the effects of the invention of claim 1, by simply installing a second layer formwork parallel to the side edges of the flat and sloped sections of the second layer and adding a widening second layer pouring and compacting process in which paving material is continuously poured and compacted by machine construction between the side edges of the flat and sloped sections of the second layer and the inside of the second layer formwork while being spread out, it is possible to form humps of a width that cannot be formed by a single machine construction. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 2 is a perspective view of a hump according to an embodiment. [Figure 2] 3A and 3B are a cross-sectional view and a plan view of the first and second layers of the hump according to the embodiment. [Figure 3]FIG. 4 is a flow chart showing the procedure for constructing a hump according to the embodiment. [Figure 4] 10A and 10B are diagrams for explaining the process of constructing the first layer of the hump according to the embodiment. [Figure 5] 10A and 10B are diagrams for explaining the process of constructing the second layer of the hump according to the embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, embodiments of the present invention will be described with reference to examples. [Example]

[0012] FIG. 1 is a perspective view of a hump according to an embodiment. As shown in Figure 1, the road hump in this embodiment is located at any point on road 1 and has a sloped section 2, a flat section 3, and a sloped section 4 along the direction of travel of vehicles, etc. The entire surface is coated with paint, and is also decorated with lines 5 indicating side strips and lanes, as well as triangular road markings 6 to notify drivers, etc. that a road hump has been installed and to draw their attention.

[0013] FIG. 2 is a cross-sectional view and a plan view of the first and second layers of the hump according to the embodiment. The hump in this embodiment consists of a first layer having a rectangular flat section 7 installed on the road surface and slope sections 8 installed before and after the rectangular flat section 7, as shown in Figures 2(A) and (B), and a second layer having flat sections 9 and slope sections 10 formed on the road surface, rectangular flat section 7, and the upper surfaces of slope sections 8 before and after the first layer, as shown in Figures 2(C) and (D). Both the first and second layers are made of asphalt, a paving material, and the first layer's rectangular flat area 7 and second layer's flat area 9 are 5cm thick with sides 2-4m long, the lengths of the front and rear sides being determined appropriately according to the width of the road on which the hump is to be installed. The first layer's sloped area 8 has a side length of 100cm, and the second layer's sloped area 10 has a side length of 200cm, so the gradient of the first and second layer's sloped areas 8, 10 is approximately 5% on average.

[0014] FIG. 3 is a flow chart showing the procedure for constructing a hump according to the embodiment. As shown in FIG. 3, the hump according to the embodiment is constructed in accordance with the following steps 1 to 5. (Step 1) <Preparation stage> Cleaning and marking of existing pavement surfaces will be carried out. (Step 2) <First layer of rectangular flat paving stage> A rectangular paving formwork (rectangular formwork) is installed where the first layer of rectangular flat area 7 will be constructed, and asphalt mixture is poured into the rectangular formwork by hand to level the top surface, and then compacted with a roller so that the height of the first layer of flat area is the same as that of the rectangular formwork (5 cm). (Step 3) <First layer of slope paving stage> After removing the rectangular formwork, linear paving formwork (slope formwork) is installed at the four corners of the rectangular flat area 7, and asphalt mixture is poured manually between the two slope formworks installed on the front side of the rectangular flat area 7 and between the two slope formworks installed on the rear side of the rectangular flat area 7 to level the top surface, and then compacted with a roller so that the height is 0 cm near the line connecting the tips of the slope formworks, which are 5 cm high and 1 m long near the rectangular flat area 7.

[0015] (Step 4) <Second layer paving stage> After removing the formwork for the slope, two linear paving formworks (formworks for the second layer) are installed parallel to the sides on the road surface before and after the first layer and on the top surface of the first layer, and the asphalt mix is ​​continuously poured and compacted between the two second layer formworks using an asphalt finisher. The height of the second layer will be the same as the second layer formwork (5 cm) at the top of the first layer, and will be 0 cm near the line connecting the tips of the 2 m long second layer formwork. In addition, the distance between the two second layer formworks shall be such that the asphalt finisher can continuously pour concrete. If it is not possible to pour concrete across the entire hump width in one go, one second layer formwork shall be installed parallel to the side edge of the second layer that has already been poured, and asphalt mix shall be poured between the side edge of the second layer and the installed second layer formwork using the asphalt finisher, and the asphalt mix shall be poured and compacted continuously in the same way as the first time. If the second paving attempt does not cover the entire width of the hump, the same paving attempt is repeated to pour a second layer of concrete across the entire width of the hump. (Step 5) <Surface finishing stage> The second layer is then painted or marked with road markings. Painting can be done by applying paint to the entire surface of the hump, or by applying synthetic resin and then scattering anti-slip aggregate.

[0016] FIG. 4 is a diagram for explaining the process of constructing the first layer of the hump according to the embodiment, and FIG. 5 is a diagram for explaining the process of constructing the second layer of the hump according to the embodiment. The present invention is characterized by the process of constructing the first and second layers of the hump, so this process will be described in detail.

[0017] (1) <Rectangular formwork installation process> As shown in FIG. 4(A), a rectangular formwork 11 is fixed to the road with nails or pins around the position where the rectangular flat section 7 of the first layer is to be constructed. The length of the rectangular formwork 11 (the length of the top and bottom sides in the figure) is 2 to 4 m, and the width (the length of the left and right sides in the figure) is an arbitrary length depending on the width of the road on which the hump is to be installed, and the frame that makes up the rectangular formwork 11 is a flat plate that is 15 cm wide and 5 cm high. (2) <Rectangular flat section pouring process> As shown in Figure 4(B), the asphalt mixture is poured and placed inside the rectangular formwork 11 to form a rectangular flat area 7 whose upper surface is a flat surface at the same height as the height of the rectangular formwork 11 (5 cm). (3) <Rectangular formwork removal process> As shown in FIG. 4(C), the rectangular formwork 11 is removed. (4) <Slope formwork installation process> As shown in Figure 4(C), a 1m long slope formwork 12 is installed on the road by nails or pins along the extension lines from the four corners of the rectangular flat area 7 to the side edges (top and bottom edges in the figure). The frame constituting the slope formwork 12 is also a flat plate with a width of 15 cm and a height of 5 cm, similar to the frame constituting the rectangular formwork 11. (5) <First layer slope casting process> As shown in Figure 4(D), the asphalt mixture is poured and spread out by hand onto the inside of the slope formwork 12 installed in the upper left corner of the rectangular flat area 7 and the slope formwork 12 installed in the lower left corner, and onto the inside of the slope formwork 12 installed in the upper right corner of the rectangular flat area 7 and the slope formwork 12 installed in the lower right corner, to level the top surface, and then compacted with a roller so that the height is 5 cm near the rectangular flat area 7 and 0 cm near the line connecting the tips of the slope formwork 12 installed on the left and near the line connecting the tips of the slope formwork 12 installed on the right. (6) <Slope formwork removal process> As shown in FIG. 4(E), the slope formwork 12 is removed. By carrying out the above steps (1) to (6), construction of the first layer of the hump is completed.

[0018] (7) <Second layer formwork installation process> As shown in FIG. 5(F), two second layer formworks 13 are arranged in parallel and fixed to the road surface and the top surface of the first layer with nails or pins. Here, the portions of the second layer formwork 13 that are fixed to the road surface are all 1 m long, and one of the two second layer formwork 13 is placed near the side edge of the first layer (the top edge in Figure 5), and the other is placed with a gap equal to the roller width of the asphalt finisher. The frame constituting the second layer formwork 13 is also a flat plate 15 cm wide and 5 cm high, similar to the frames constituting the rectangular formwork 11 and the slope formwork 12. In addition, the second layer formwork 13 may be a single flat plate, but it may also be composed of one flat plate 2 to 4 m long fixed to the top surface of the rectangular flat section 7, two flat plates 1 m long fixed to the top surface of the first layer slope section 8, and two flat plates 1 m long fixed to the road surface. (8) <Second layer pouring and compaction process> As shown in Figure 5(G), an asphalt finisher is used to continuously pour and compact asphalt mixture inside the two second-layer formwork 13, so that the thickness of the second layer is 5 cm at the top of the rectangular flat section 7 and the first-layer slope section 8, and then the thickness gradually decreases from there until the height is 0 cm near the line connecting the left ends of the two second-layer formwork 13 and near the line connecting the right ends. (9) <Second layer formwork removal process> As shown in FIG. 5(H), the second layer formwork 13 is removed. As a result, the second layer flat section 9 and the second layer slope section 10 are formed. Here, if the width of the hump is small, the hump is completed when this step is completed, but if the width of the hump is large, the hump is completed by carrying out the construction of the second layer multiple times. In this embodiment, the hump is completed by carrying out the construction of the second layer twice. (10) <Installation of formwork for second layer widening> After removing the two second layer formwork 13 used in Figure 5(G), the second layer formwork 13 is placed along the side edge of the first layer (the bottom edge in Figure 5) as shown in Figure 5(H), and is installed by fixing it to the road surface and the top surface of the first layer with nails or pins. The parts of the second layer formwork 13 that are fixed to the road surface are 1 m in length, as in the second layer formwork installation process described above, and the distance between the second layer formwork 13 and the side edges of the second layer flat section 9 and second layer slope section 10 formed in the second layer pouring and compaction process is set to the width of the asphalt finisher roller. (11) <Widening second layer pouring and compaction process> As shown in Figure 5 (I), an asphalt finisher is used to continuously pour and compact asphalt mixture onto the side edges 14 of the second layer flat section 9 and the second layer slope section 10, the road surface, and the inside of the second layer formwork 13 installed on the top surface of the first layer, so that the thickness of the second layer is 5 cm at the top of the rectangular flat section 7 and the first layer slope section 8, and the height is 0 cm near the line connecting the left end of the side edge 14 and the left end of the second layer formwork 13 and near the line connecting the right end of the side edge 14 and the right end of the second layer formwork 13. (12) <Removal of formwork for second layer widening> As shown in FIG. 5(J), the second layer formwork 13 is removed. As a result, the second layer flat section 9 and the second layer slope section 10 are entirely formed.

[0019] A modified example of the hump construction method according to the embodiment will be described. (1) In the embodiment, the rectangular formwork 11, the slope formwork 12 and the second layer formwork 13 were all 5 cm high, but it is sufficient if the height of the rectangular formwork 11 and the height of one end of the slope formwork 12 are the same and the sum of the heights of the rectangular formwork 11 and the second layer formwork 13 is 9 to 11 cm. For example, possible combinations of the heights of the rectangular formwork 11 and the second layer formwork 13 are 7 cm and 2 to 4 cm, 6 cm and 3 to 5 cm, and 5 cm and 4 to 6 cm. (2) In the embodiment, the formwork 12 for the slope and the formwork 13 for the second layer were all uniform in height (5 cm), but it would be better if they were lowered closer to the tip to match the inclination of the slope section. The cross-sectional shape of the slope surface may be linear, but it is better if the slope surface is shaped so that the contact points between the slope surface and the road surface and flat area are smooth (such as a sine curve). (3) In the slope formwork installation process shown in Figure 4(C), four slope formworks 12 are installed at the four corners, but two long slope formworks protruding to the left and right from the left and right ends of the rectangular flat section 7 may also be installed along the side edges of the rectangular flat section 7. (4) In the step of pouring the slope portion of the first layer shown in Figure 4(D), the concrete was compacted with a roller, but it may be poured alone. (5) In the examples, the same asphalt mixture was used for both the first and second layers of the hump, but it would be better to use a recycled coarse-graded asphalt mixture for the first layer and a recycled dense-graded asphalt mixture for the second layer. It is also possible to use a special mixture with skid resistance and flow resistance, such as a dense-graded gap asphalt mixture, for the second layer, and to apply an anti-slip pavement (thin-layer colored pavement) to the surface of the second layer. [Explanation of symbols]

[0020] 1 Road 2, 4 Slope section 3 Flat section 5 Lines indicating roadsides and lanes 6 Triangular road markings 7 Rectangular flat area of ​​the first layer 8 Slope area of ​​the first layer 9 Second floor flat area 10 Second floor slope area 11 Rectangular formwork 12 Slope formwork 13 Second layer formwork 14 Side edge of second layer slope portion 10

Claims

1. A hump construction method for constructing a hump on a road using paving materials, the hump consisting of a first layer of rectangular flat section, a first layer of slope sections formed before and after the rectangular flat section, and a second layer of flat section and slope section formed on the upper surfaces of the rectangular flat section and the first layer of slope section, A hump construction method characterized by carrying out the following steps (1) to (9). (1) A rectangular formwork installation process in which a rectangular formwork consisting of flat plates of a certain height is installed around the area where the rectangular flat section is to be constructed. (2) A rectangular flat area pouring process in which paving material is poured inside the rectangular formwork so that the height of the rectangular formwork and the height of the rectangular flat area match. (3) A rectangular formwork removal process for removing the rectangular formwork. (4) A slope formwork installation process for installing a slope formwork along the extension line of the side edge of the rectangular flat area portion. (5) A step of pouring the first layer of slope material into the formwork for the slope while spreading it out so that the length of the first layer of slope material is the same as the length from the corner of the rectangular flat area to the tip of the formwork for the slope. (6) A slope form removal process for removing the slope form. (7) A second layer formwork installation process for installing two second layer formworks on the top surfaces of the rectangular flat section and the first layer slope section, parallel to their side edges. (8) A second layer pouring and compacting process in which paving material is continuously poured and compacted inside the two second layer formworks so that part or all of the second layer flat section and slope section, which are the same length as the second layer formworks, are formed on the upper surfaces of the rectangular flat section and the first layer slope section. (9) A second layer formwork removal process for removing the second layer formwork.

2. The hump construction method according to claim 1, characterized in that the following steps (10) to (12) are carried out after a part of the flat section and slope section of the second layer is formed by the second layer formwork removal step. (10) An installation process for widening the second layer formwork, in which the second layer formwork is installed on the upper surface of the rectangular flat area portion and the sloped area of ​​the first layer, parallel to the side edges of the flat area portion and sloped area of ​​the second layer. (11) A widening second layer pouring and compacting process in which paving material is continuously poured and compacted while being spread out on the side edges of the flat and sloped portions of the second layer and inside the second layer formwork so that a portion of the flat and sloped portions of the second layer that is the same length as the second layer formwork is formed on the upper surfaces of the rectangular flat portion and the first layer sloped portion. (12) A process of removing the widened second layer formwork, in which the second layer formwork is removed.

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