Manufacturing method of retaining wall blocks

Abstract

To provide a retaining wall block connecting member and a panel holding device capable of efficiently and accurately assembling assembly type retaining wall blocks.SOLUTION: A pair of connecting members 1, 1 for connecting and fixing a front face panel P10 and a rear face panel P20 at predetermined intervals S1, S2 to form a retaining wall block B includes: a first construction portion 10 in which upper attached portions 12, 22 attached to upper connection portions P16, P26 are provided on both ends of a first construction main body portion 11 constructed on an upper part at the interval S10 corresponding to an upper construction distance between panels P10, P20; and a second construction portion 20 in which lower attached portions 13, 23 attached to lower connection portions P17, P27 are provided on both ends of a second construction main body portion 21 constructed on a lower part at the interval S20 corresponding to a lower construction distance. The first construction portion 10 and the second construction portion 20 are integrally fixed by a construction portion fixing member 30, and relative positions of the upper attached portions 12, 22 and the lower attached portions 13, 23 are defined.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] In the present invention, a retaining wall block is formed by connecting and fixing a front panel and a rear panel arranged facing outward at a predetermined interval. Manufacturing method Regarding. [Background technology]

[0002] Retaining walls are installed on slopes such as cliffs and river embankments to prevent landslides and the like. A known method for constructing this type of retaining wall is to stack a number of blocks made of concrete or the like. The blocks used in the retaining wall are manufactured in various sizes, such as larger blocks that are placed lower in the stacking position and smaller blocks that are placed higher in the stacking position, and are transported to the construction site as appropriate and installed.

[0003] Retaining wall blocks are manufactured individually for each size, and large blocks in particular can be extremely heavy, which can hinder transportation and construction. To address this issue, a retaining wall block has been proposed that is formed by connecting a front panel that constitutes the front wall surface and a rear panel that constitutes the rear wall surface with a connecting member (see Patent Document 1). In this retaining wall block, the connecting member is configured to form a framework plane consisting of an upper chord member and a lower chord member that are installed between the front panel and the rear panel, and a diagonal member that connects one end of the upper chord member to the other end of the lower chord member. In the above-mentioned prefabricated retaining wall block, the width and angle between the two panels can be adjusted depending on the length of the upper chord member, lower chord member, and diagonal member that are the connecting members used, so that retaining wall blocks of various sizes can be formed and weight can be reduced.

[0004] In this prefabricated retaining wall block, the upper chord, lower chord, and diagonal members that constitute the connecting members are sequentially connected to both panels during assembly. However, simply connecting the upper chord, lower chord, and diagonal members to the separate front and rear panels makes it difficult to precisely adjust the width and angle between the two panels, and construction errors are likely to occur in retaining wall blocks assembled to the same standard. In order to assemble the blocks without construction errors, more precise work is required, which significantly reduces work efficiency. Therefore, it is inefficient and difficult to assemble the retaining wall blocks at the construction site, and they must be assembled in a factory or the like and then transported to the construction site.

[0005] If they are assembled in a factory, etc., they are bulky like concrete retaining wall blocks, so a large storage space is required, and these retaining wall blocks must be transported to the installation site one by one, making it difficult to reduce the transportation work. Therefore, the inventors have developed a method that allows retaining wall blocks to be assembled efficiently and with high construction accuracy even at the construction site. Manufacturing method This led to the invention of the [Prior art documents] [Patent documents]

[0006] omission Summary of the Invention [Problem to be solved by the invention]

[0007] The present invention has been made in consideration of the above-mentioned points, and provides a method for efficiently and accurately assembling prefabricated retaining wall blocks even at a construction site. Manufacturing method This provides: [Means for solving the problem]

[0008] That is, the invention of claim 1 is a front panel arranged facing outward. (P10) and rear panel (P20) and at a predetermined interval (S1, S2) When forming the front panel (P10) and the rear panel (P20) into a retaining wall block (B) by a retaining device (100) via a connecting member (1), the front panel (P10) and the rear panel (P20) are each formed with a panel body and a beam portion (P15, P16) provided in a protruding shape on the inside thereof, and the beam portion is each formed with an upper connecting portion (P16, P26) and a lower connecting portion (P17, P27) at predetermined positions, and the connecting member (1) is disposed between the front panel and the rear panel, a first installation section (10) in which upper mounting sections (12, 13) attached to the upper connecting section are provided on both ends of a first installation main body section (11) installed at the top at an interval (S10) corresponding to an upper installation distance that defines the predetermined interval (S1); and a second installation section (20) in which lower mounting sections (22, 23) attached to the lower connecting section are provided on both ends of a second installation main body section (21) installed at the bottom at an interval (S20) corresponding to a lower installation distance that defines the predetermined interval (S2); and an erection section fixing member (30) that fixes the first erection section and the second erection section together. The holding device (100) has a base section (110) on which the front panel and the rear panel are placed, a front panel holding section (120) having a front panel regulating section that determines the position of the front panel and a front side inclined support section that supports the front panel in an inwardly inclined state, and a rear panel holding section (130) having a rear panel regulating section that determines the position of the rear panel at a position spaced from the front panel regulating section by a distance corresponding to the predetermined interval (S2), and a connecting member placing section (140) that arranges the connecting members so that the lower mounting sections (22, 23) of the connecting members are at the same height position as the lower connecting sections (P17, P27) of each panel, and the front panel and the rear panel are connected and fixed via the connecting members at a predetermined height position and a predetermined interval to form a retaining wall block.Retaining wall block characterized by Manufacturing method relates to.

[0009] The invention of claim 2 is a panel side restriction portion for restricting the side positions of the front panel and the rear panel in one direction is provided on the base portion. 1 Described in Manufacturing method of retaining wall blocks relates to.

[0010] The invention of claim 3 is a connecting member adjustment section for finely adjusting the vertical position of the connecting member is provided on the connecting member placement section; 1 Described in Manufacturing method of retaining wall blocks relates to.

[0011] The invention of claim 4 is as follows: The holding device has a panel upper portion adjustment member for finely adjusting the gap between the upper sides of the front panel and the rear panel. 1 Described in Manufacturing method of retaining wall blocks relates to. Effect of the Invention

[0012] The invention of claim 1 According to Outward facing front panel (P10) and rear panel (P20) and at a predetermined interval (S1, S2) When forming the front panel (P10) and the rear panel (P20) into a retaining wall block (B) by a retaining device (100) via a connecting member (1), the front panel (P10) and the rear panel (P20) are each formed with a panel body and a beam portion (P15, P16) provided in a protruding shape on the inside thereof, and the beam portion is each formed with an upper connecting portion (P16, P26) and a lower connecting portion (P17, P27) at predetermined positions, and the connecting member (1) is disposed between the front panel and the rear panel, a first installation section (10) in which upper mounting sections (12, 13) attached to the upper connecting section are provided on both ends of a first installation main body section (11) installed at the top at an interval (S10) corresponding to an upper installation distance that defines the predetermined interval (S1); and a second installation section (20) in which lower mounting sections (22, 23) attached to the lower connecting section are provided on both ends of a second installation main body section (21) installed at the bottom at an interval (S20) corresponding to a lower installation distance that defines the predetermined interval (S2); and an erection section fixing member (30) that fixes the first erection section and the second erection section together. The holding device (100) has a base section (110) on which the front panel and the rear panel are placed, a front panel holding section (120) having a front panel regulating section that determines the position of the front panel and a front side inclined support section that supports the front panel in an inwardly inclined state, and a rear panel holding section (130) having a rear panel regulating section that determines the position of the rear panel at a position spaced from the front panel regulating section by a distance corresponding to the predetermined interval (S2), and a connecting member placing section (140) that arranges the connecting members so that the lower mounting sections (22, 23) of the connecting members are at the same height position as the lower connecting sections (P17, P27) of each panel, and the front panel and the rear panel are connected and fixed via the connecting members at a predetermined height position and a predetermined interval to form a retaining wall block. Retaining wall block characterized by Because it is made by the method, A retaining wall block with little construction error in the spacing between panels can be easily obtained, and the retaining wall block can be efficiently and accurately assembled at the construction site.

[0013] According to the invention of claim 2, in the invention of claim 1, The base portion is provided with a panel side restriction portion that restricts the side positions of the front panel and the rear panel in one direction, thereby making it possible to suppress lateral displacement of the front panel and the rear panel.

[0014] According to the invention of claim 3, in the invention of claim 1, Since the connecting member mounting portion is provided with a connecting member adjustment portion that fine-tunes the vertical position of the connecting member, it is possible to reduce errors in the positioning of the height position of the connecting member for retaining wall blocks, thereby improving work accuracy.

[0015] According to the invention of claim 4, in the invention of claim 1, Since the holding device has a panel upper portion adjustment member that finely adjusts the gap between the upper sides of the front panel and the rear panel, it is possible to reduce errors in the arrangement of the gap between the front panel and the rear panel. [Brief description of the drawings]

[0016] [Figure 1] 1 is an oblique view of a retaining wall block using a connecting member for retaining wall blocks according to one embodiment of the present invention; [Diagram 2] FIG. 2 is a side view of a retaining wall block. [Diagram 3] FIG. 2 is a plan view of a retaining wall block. [Figure 4] 13A to 13C are perspective views of the front panel showing variations of the beam portion. [Diagram 5] 1 is a perspective view of a connecting member for retaining wall blocks; FIG. [Figure 6] FIG. 13 is a perspective view of another type of retaining wall block. [Figure 7] 1 is a side view illustrating a state in which a panel holding device according to an embodiment of the present invention is used. [Figure 8] 8 is a plan view illustrating a state in which the panel holding device of FIG. 7 is used. FIG. [Figure 9] FIG. [Figure 10] FIG. 2 is a perspective view of the front block holding portion side of the panel holding device. [Figure 11] FIG. 2 is a perspective view of the rear block holding portion side of the panel holding device. [Figure 12] FIG. 4 is a rear view showing the panel holding device in use. [Figure 13] 13 is a side view showing a state in which another embodiment of a panel holding device is used. FIG. [Figure 14] 4 is a schematic enlarged view of each adjustment section of the base section, the inclined support section, and the connecting member mounting section. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] 1 to 3 show a retaining wall block B formed using a connecting member for retaining wall blocks 1 according to one embodiment of the present invention. The retaining wall block B is a structure to be installed on a slope of a terrain with a difference in elevation such as a cliff or a river bank, and is a prefabricated retaining wall in which a front panel P10 and a back panel P20 are arranged facing outward and connected and fixed at a predetermined interval. The retaining wall block B is appropriately piled up and installed at the construction site.

[0018] The front panel P10 and the rear panel P20 have a panel body (P11, P21) and a beam portion (P15, P25). The panel body P11 of the front panel P10 is a block body that constitutes the front side of the retaining wall block B, and is formed with a predetermined inclination toward the inside as shown in FIG. 2. The panel body P21 of the rear panel P20 is a block body that constitutes the rear side of the retaining wall block B, and is formed in various shapes such as vertical, a predetermined inclination toward the inside, and a predetermined inclination toward the outside depending on the topography of the installation location. In the rear panel P20 of the embodiment shown in FIGS. 1 to 3, the panel body P21 is vertical. In the retaining wall block B, the front panel P10 is usually installed so as to form a slope with the front panel P10 as the front side, but it can be appropriately installed such as installing the rear panel P20 as the front side depending on the topography of the installation location.

[0019] 2 and 3, the beam portion P15 (P25) is a portion provided in a protruding shape on the inside of the panel main body P11 (P21), and is configured to be in a positional relationship opposite to the beam portion (front beam portion) P15 of the front panel P10 and the beam portion (back beam portion) P25 of the rear panel P20 when they are arranged opposite to each other. An upper connecting portion P16 (P26) and a lower connecting portion P17 (P27) are formed at predetermined positions on the beam portion P15 (P25).

[0020] The beam portion P15 (P25) is provided at one or more locations depending on the size of the panel main body P11 (P21), such as the width. For example, in the relatively narrow front panel P10a shown in FIG. 4(a), one beam portion P15 is provided. On the other hand, in the relatively wide front panel P10b shown in FIG. 4(b), multiple (two in the illustrated example) beam portions P15, P15 are provided. The shape of the beam portion P15 is not particularly limited as long as it can form at least the upper connecting portion P16 (P26) and the lower connecting portion P17 (P27) described later. For example, the beam portion P15 shown in FIG. 4(a) and (b) is formed as a protrusion from the upper portion to the lower portion on the inside of the panel main body P11. On the other hand, the beam portion P15 of the front panel P10c shown in FIG. 4(c) is provided protruding from a part (upper side and lower side) of the inside of the panel main body P11. The shape of the beam portion is not limited to the above-mentioned forms, and can be any appropriate shape. Although not shown, the beam portion of the rear panel can be configured in a similar manner.

[0021] The upper connecting portion P16 and the lower connecting portion P17 of the front panel P10, and the upper connecting portion P26 and the lower connecting portion P27 of the rear panel P20 are formed at fixed positions according to the product specifications of the front panel P10 and the rear panel P20. In this case, when the front panel P10 and the rear panel P20 are arranged opposite each other, the upper connecting portion P16 of the front panel P10 and the upper connecting portion P26 of the rear panel P20, and the lower connecting portion P17 of the front panel P10 and the lower connecting portion P27 of the rear panel P20 are provided at positions at the same height. Each connecting portion P16, P17, P26, P27 of the embodiment is made of a receiving hole portion for a bolt member, and is formed on the outer surface of the beam portion P15, P25, respectively. In addition, the upper connecting portion P16 and the lower connecting portion P17 of the front panel P10 are arranged such that the lower connecting portion P17 is obliquely downward of the upper connecting portion P16 so as to have the same inclination as the inclination of the front panel P10. On the other hand, the upper connecting portion P26 and the lower connecting portion P27 of the rear panel P20 are arranged so that the lower connecting portion P27 is disposed directly below the upper connecting portion P26 in correspondence with the vertical rear panel P20.

[0022] The front panel P10 and the rear panel P20 are connected and fixed at a predetermined interval S1, S2 via a pair of connecting members 1, 1 for retaining wall blocks to form a retaining wall block B, as shown in Figs.

[0023] The predetermined interval S1 between the front panel P10 and the rear panel P20 is the interval (distance) at the upper side between the front panel P10 and the rear panel P20 arranged opposite to each other, and the predetermined interval S2 between the front panel P10 and the rear panel P20 is the interval (distance) at the lower side between the front panel P10 and the rear panel P20 arranged opposite to each other. The predetermined intervals S1 and S2 between the panels P10 and P20 may be set based on any part as long as they are constant in the retaining wall block of the same standard. In the embodiment, the distance (interval) between the outer upper end P12 of the front panel P10 and the outer upper end P22 of the rear panel P20 is the upper predetermined interval S1, and the distance (interval) between the outer lower end P13 of the front panel P10 and the outer lower end P23 of the rear panel P20 is the lower predetermined interval S2.

[0024] As shown in Figs. 1 to 3 and 5, the connecting member 1 for retaining wall blocks has a first erection section 10, a second erection section 20 and an erection section fixing member 30. The first erection section 10 has a first erection main body section 11 that is erected at the upper part between the front panel P10 and the rear panel P20, and upper attachment sections 12 and 13 that are provided on both ends of the first erection main body section 11. The first erection main body section 11 is made of an appropriate rod-shaped member that can be erected at the upper side between the panels P10 and P20. The first erection main body section 11 of the embodiment is made of a rod-shaped member that is L-shaped when viewed from the side as shown in the figure from the viewpoint of strength, etc.

[0025] The upper mounting parts 12, 13 are parts that are attached to the upper connecting parts P16, P26 of the panels P10, P20. The front side upper mounting part 12 and the rear side upper mounting part 13 are provided on the first installation main body part 11 at a distance S10 (described later) that is an upper installation distance that defines a predetermined upper distance S1 between the front panel P10 and the rear panel P20.

[0026] The second installation section 20 has a second installation main body section 21 installed at the lower part between the front panel P10 and the rear panel P20, and lower attachment sections 22, 23 provided on both ends of the second installation main body section 21. The second installation main body section 21 is made of an appropriate rod-shaped member that can be installed at the lower part between the panels P10, P20. In the embodiment, the second installation main body section 21 is made of a rod-shaped member that is L-shaped when viewed from the side as shown in the figure from the standpoint of strength, etc.

[0027] The lower mounting portions 22, 23 are portions that are attached to the lower connecting portions P17, P27 of the panels P10, P20. The front side lower mounting portion 22 and the rear side lower mounting portion 23 are provided on the second installation main body portion 21 at a distance S20 (described later) that is an upper installation distance that defines a lower predetermined distance S2 between the front panel P10 and the rear panel P20.

[0028] The mounting parts 12, 22, 13, 23 of the embodiment are made of mounting holes fixed by bolt members together with the receiving hole parts (connecting parts) P16, P17, P26, P27 of the front panel P10 and the rear panel P20. That is, the bolt members penetrate the mounting holes (mounting parts) 12, 22, 13, 23 and are screwed into the receiving hole parts P16, P17, P26, P27, so that the retaining wall block connecting member 1 having the mounting holes 12, 22, 13, 23 is fixed to the beam parts 15, 25 having the receiving hole parts P16, P17, P26, P27. The mounting holes (mounting parts) 12, 22, 13, 23 can be provided in the erection main body parts 11, 21 by an appropriate method, but if a known laser processing method is used, for example, it is possible to provide them at more accurate positions.

[0029] The bridging section fixing member 30 is a member that fixes the first bridging section 10 and the second bridging section 20 together to determine the relative positions of the upper mounting sections 12, 13 and the lower mounting sections 22, 23. The bridging section fixing member 30 is made of an appropriate member that can fix the first bridging section 10 and the second bridging section 20 together. The bridging section fixing member 30 in the embodiment is made of a rod-shaped member that is installed between the first bridging section 10 and the second bridging section 20 from the viewpoint of weight reduction, etc. Furthermore, one or more rod-shaped bridging section fixing members 30 are provided depending on the lengths (installation distances) of the first bridging section 10 and the second bridging section 20, etc.

[0030] Here, the positional relationship between the upper mounting parts 12, 13 and the lower mounting parts 22, 23 will be described. The space S10 for the upper installation distance corresponds to the distance (space) between the upper connecting part P16 of the front panel P10 and the upper connecting part P26 of the rear panel P20 in the retaining wall block B in the assembled state. The space S20 for the lower installation distance corresponds to the distance (space) between the lower connecting part P17 of the front panel P10 and the lower connecting part P27 of the rear panel P20 in the retaining wall block B in the assembled state.

[0031] On the other hand, in each panel P10, P20, the upper connecting parts P16, P26 and the lower connecting parts P17, P27 are formed at fixed positions in accordance with the product standards of each panel P10, P20. Then, in a retaining wall block of the same standard, the upper connecting parts P16, P26 and the lower connecting parts P17, P27 are formed at fixed positions of the beam parts P15, P25 of each panel P10, P20. In a retaining wall block B in which the panels P10, P20 are arranged at predetermined intervals (S1, S2), the distance between the upper connecting parts P16, P26 and the distance between the lower connecting parts P17, P27, as well as the relative positions of the connecting parts P16, P17, P26, P27, are fixed in accordance with the product standards.

[0032] Therefore, in the connecting member 1 for retaining wall blocks, the positional relationship of each mounting portion 12, 22, 13, 23 is set so as to match the positional relationship of each connecting portion P16, P17, P26, P27 of the assembled retaining wall block B. That is, the upper mounting portions 12, 13 are formed on both ends of the first erection main body portion 11 by setting an interval S10 of an upper erection distance equivalent to the distance between each upper connecting portion P16, P26 in accordance with the product standard, and similarly, the lower mounting portions 22, 23 are formed on both ends of the second erection main body portion 21 by setting an interval S20 of a lower erection distance equivalent to the distance between each lower connecting portion P17, P27 in accordance with the product standard. In addition, the first erection section 10 and the second erection section 20 are positioned so that the respective mounting sections 12, 22, 13, 23 correspond to the relative positions of each connecting section P16, P17, P26, P27 according to the product standards, and the two are fixed together by the erection section fixing member 30, thereby determining the relative positions of each mounting section 12, 22, 13, 23 of the connecting member 1 for retaining wall blocks.

[0033] When assembling the retaining wall block B, by simply connecting the front panel P10 and the rear panel P20 via the retaining wall block connecting member 1 configured as described above, a retaining wall block B can be easily obtained with little construction error in the spacing (S1, S2) between each panel P10, P20.

[0034] Furthermore, if each of the connecting portions P16, P17, P26, and P27 of each of the panels P10, P20 is a receiving hole portion for a bolt member, and each of the mounting portions 12, 22, 13, and 23 of the connecting member 1 is a corresponding mounting hole portion, the connecting work can be easily performed with a simple structure, and the work efficiency is excellent. Regarding the relationship between the receiving hole portions (connecting portions P16, P17, P26, and P27) and the mounting hole portions (mounting portions 12, 22, 13, and 23), in order to enable fixation with a bolt member, the diameter of the mounting hole portions (mounting portions 12, 22, 13, and 23) is made equal to or larger than the diameter of the receiving hole portions (connecting portions P16, P17, P26, and P27). In particular, from the viewpoint of achieving both work efficiency and construction accuracy, the diameter of the mounting hole portion (mounting portion 12, 22, 13, 23) is preferably 0.5 to 5 mm larger than the diameter of the receiving hole portion (connecting portion P16, P17, P26, P27), and more preferably 1 to 3 mm larger. If the diameter of the mounting hole portion (mounting portion 12, 22, 13, 23) is too small, it may be difficult to match it with the receiving hole portion (connecting portion P16, P17, P26, P27), which may reduce work efficiency, and if the diameter of the mounting hole portion (mounting portion 12, 22, 13, 23) is too large, construction errors may increase. In the embodiment, the diameter of the receiving hole portion (connecting portion P16, P17, P26, P27) is 16 mm, while the diameter of the mounting hole portion (mounting portion 12, 22, 13, 23) is 18 mm.

[0035] Next, variations of the retaining wall block will be described. The retaining wall block B1 shown in Fig. 2 is an example having a front panel P10 that is inclined inward and a vertical rear panel P20a. The retaining wall block connecting member 1A used for the retaining wall block B1 has a lower erection distance interval S20 longer than the upper erection distance interval S10, and the front lower mounting portion 22 is disposed diagonally downward outward from the front upper mounting portion 12, and the rear lower mounting portion 23 is disposed directly below the rear upper mounting portion 13.

[0036] The retaining wall block B2 shown in FIG. 6(a) is an example in which the rear panel P20b is formed with a predetermined inclination toward the outside. In particular, the front panel P10 and the rear panel P20b are arranged facing each other in approximately parallel relation. The retaining wall block connecting member 1B used for the retaining wall block B2 has an equal interval S10 for the upper erection distance and an interval S20 for the lower erection distance, and the front lower mounting portion 22 is arranged diagonally downward outward from the front upper mounting portion 12, and the rear lower mounting portion 23 is arranged diagonally downward inward from the rear upper mounting portion 13. In particular, since the front panel P10 and the rear panel P20b are arranged approximately parallel, the line connecting the front upper mounting portion 12 and the lower mounting portion 22 is configured to be approximately parallel to the line connecting the rear upper mounting portion 13 and the lower mounting portion 23.

[0037] The retaining wall block B3 shown in Fig. 6(b) is an example in which the rear panel P20c is formed with a predetermined inward inclination. The retaining wall block connecting member 1C used for the retaining wall block B3 has a lower erection distance interval S20 longer than the upper erection distance interval S10, and the front lower mounting portion 22 is disposed diagonally outwardly and downwardly of the front upper mounting portion 12, and the rear lower mounting portion 23 is disposed diagonally outwardly and downwardly of the rear upper mounting portion 13.

[0038] The retaining wall blocks B1, B2, and B3 shown in Figures 2, 6(a), and 6(b) are appropriately selected and used according to the topography of the installation site. The shapes of the retaining wall blocks are not limited to these forms, and as can be seen from the retaining wall blocks B1, B2, and B3, by using the retaining wall block connecting member 1 in which the spacing S10 for the upper erection distance, the spacing S20 for the lower erection distance, and the relative positions of the mounting parts 12, 22, 13, and 23 are appropriately set correspondingly, retaining wall blocks of various shapes and sizes can be formed. Therefore, retaining wall blocks with a narrow spacing between the front panel and the back panel for stacking can also be easily formed.

[0039] When using the retaining wall block connecting member 1 of the present invention to connect a front panel P10 and a rear panel P20 to form a retaining wall block B, it is preferable to use a panel holding device 100 shown in Figures 7 and 8. This panel holding device 100 includes a base portion 110, a front panel holding portion 120, and a rear panel holding portion 130.

[0040] The base 110 is a platform-like member on which the front panel P10 and the back panel P20 are placed. The shape of the base 110 is not particularly limited as long as the base 110 has the strength to withstand the weight of the panels P10 and P20 when placed on the base 110. The base 110 of the embodiment is formed in a lattice shape as shown in FIG. 9 from the viewpoint of weight reduction.

[0041] As shown in Figures 9 and 10, the base 110 is preferably provided with a front beam mounting portion 111 on which the front beam P15 of the front panel P10 is mounted. Also, as shown in Figures 9 and 11, it is preferably provided with a back beam mounting portion 112 on which the back beam P25 of the back panel P20 is mounted. The front beam mounting portion 111 and the back beam mounting portion 112 widen the ground contact areas of the front panel P10 and the back panel P20 on the inward direction, improving the stability of each panel P10, P20.

[0042] In addition, as shown in Figs. 8, 9, and 12, the base 110 is preferably provided with a panel side regulating portion 115 for regulating the positions of the side portions (P14, P24) of the front panel P10 and the rear panel P20 on one side. The panel side regulating portion 115 aligns the side portions P14, P24 of the front panel P10 and the rear panel P20 on one side, thereby suppressing lateral deviation between the two panels. The shape of the panel side regulating portion 115 is not particularly limited as long as it is possible to align the side portions P14, P24 of the front panel P10 and the rear panel P20 on one side. The panel side regulating portion 115 of the embodiment is provided over almost the entire length of one side of the base 110, and is made of a rod member having a substantially L-shape in a side view, having a side abutting surface 116 with which both the side portions P14, P24 of the panels P10, P20 on one side can abut.

[0043] As shown in Figs. 7, 9 and 10, the front panel holding portion 120 is a portion that holds the front panel P10 in a predetermined inclined state, and has a front panel restricting portion 121 and a front inclined support portion 125. The front panel restricting portion 121 is a member that restricts the position of the outer surface side lower end P13 of the front panel P10 to determine the position of the front panel P10. The shape of the front panel restricting portion 121 and the shape of the front panel P10 are not particularly limited as long as they are capable of restricting the position of the outer surface side lower end P13. The front panel restricting portion 121 of the embodiment is provided on the front side of the base portion 110 over a length equivalent to the width of the front panel P10, and is made of a rod member that is substantially L-shaped in side view and has a front abutment surface 122 against which the outer surface side lower end P13 of the front panel P10 can abut.

[0044] The front inclined support portion 125 is a member that supports the front panel P10 in an inwardly inclined state. The front inclined support portion 125 has an inclined support body 126 configured with a predetermined inclination angle, and the inner part of the front panel P10 abuts against the inclined support body 126 to maintain the inclined state of the front panel P10. The front inclined support portion 125 may support either the panel body P11 or the front beam portion P15 as long as it is the inner part of the front panel P10, but from the viewpoint of reducing the error of the inclination angle and improving the construction accuracy, it is preferable to support a part with less unevenness at the abutment portion. For example, in the front panel P10, the inner side of the front beam portion P15 tends to have less unevenness compared to the inner side of the panel body P11, so the front inclined support portion 125 is configured to support the front beam portion P15. In the front inclined support portion 125 of the embodiment, the inclined support body 126 is formed in a fence shape as shown in the figure from the viewpoint of weight reduction and the like.

[0045] As shown in Figs. 7 and 9, the rear panel holding portion 130 is a portion that determines the position of the rear panel P20 and has a rear panel restricting portion 131. The rear panel restricting portion 131 is a member that determines the position of the rear panel P20 at a position spaced apart from the front panel restricting portion 121 by a distance corresponding to the predetermined interval S2 on the lower side. The rear panel restricting portion 131 of the embodiment is a rod member that is provided over a length corresponding to the width of the rear panel P20 and has a rear contact surface 132 with which the rear panel P20 can contact. In addition, the rear panel holding portion 130 further has rear inclined support portions (135a, 135b) according to the shape of the rear panel P20, as shown in Fig. 13.

[0046] 7 holds a vertical rear panel P20a, and a rear panel restricting portion 131a is disposed at a predetermined distance S2 from the front panel restricting portion 121 to restrict the position of the outer surface (outer surface lower end P23) of the rear panel P20a to determine the position of the rear panel P20. Since the vertical rear panel P20a is self-supporting, if the rear panel restricting portion 131a restricts the position of the outer surface lower end P23 of the rear panel P20a to a position at a predetermined distance S2 from the front panel restricting portion 121, the rear panel P20a can be disposed in an appropriate position.

[0047] In the rear panel P20, the stability is improved by placing the back beam P25 on the back beam placement portion 112, so the vertical rear panel P20a can stand independently more stably. In addition, even if the inclination is small, as in the rear panel P20c shown in Fig. 6(b), the rear panel can stand independently stably. If the rear panel can stand independently in this way, the rear panel holding portion is composed of a rear panel restriction portion 131a that restricts the outer surface side lower end portion (P23) of the rear panel.

[0048] 13(a), the rear panel holding portion 130b holds the outwardly inclined rear panel P20b and includes a rear panel restricting portion 131b and a back-side inclined support portion 135a. The rear panel restricting portion 131b restricts the position of the inner side lower end P23a so that the outer side lower end P23 of the rear panel P20b is spaced a predetermined distance S2 from the front panel restricting portion 121.

[0049] The rear inclined support portion 135a is a member that supports the rear panel P20b in an outwardly inclined state. The rear inclined support portion 135a has an inclined support body (outer inclined support body) 136a that is configured at a predetermined inclination angle and supports the outer portion of the rear panel P20b. In the embodiment, the rear inclined support portion 135a has the inclined support body 136a formed in a fence shape similar to the front inclined support portion 125 from the viewpoint of weight reduction, etc.

[0050] The rear panel holding part 130c shown in FIG. 13(b) holds the rear panel P20d inclined inward, and has a rear panel restricting part 131b and a rear inclined support part 135b. The rear inclined support part 135b is a member that supports the rear panel P20d in an inclined state inward. This rear inclined support part 135b has an inclined support body (inner inclined support body) 136b that is configured at a predetermined inclination angle and supports the inner part of the rear panel P20d. This rear inclined support part 135b preferably supports a part with less unevenness of the abutment part, similar to the front inclined support part 125, and is configured to support the back beam part P25 of the rear panel P20d. Also, in the rear inclined support part 135b of the embodiment, the inclined support body 136b is formed in a fence shape, similar to the rear inclined support part 135a.

[0051] In this way, when constructing an inclined rear panel (P20b, P20d) that is difficult to stand on its own, the inclined state of the rear panel can be appropriately maintained by the rear-side inclined support portions 135a, 135b.

[0052] In addition, when the retaining wall blocks are formed for stacking, the interval between the front panel and the rear panel needs to be narrower for the upper part of the stacked retaining wall block. Therefore, in the panel holding device 100, at least one of the front panel holding part 120 and the rear panel holding part 130 is configured to be movable. For example, the front panel regulating part 121 and the front side inclined support part 125 of the movable front panel holding part 120, and the rear panel regulating parts 131a, 131b and the rear side inclined support parts 135a, 135b of the movable rear panel holding part 130 are each detachable. Then, by appropriately installing the front panel holding part 120 and the rear panel holding part 130 at a position with an interval according to the stacking position, it is possible to easily respond to the formation of the retaining wall blocks for stacking. As a structure for attaching and detaching the front panel holding portion 120 and the rear panel holding portion 130, from the standpoint of structural simplicity and easy operability, it is preferable to provide receiving holes for bolt fixing at appropriate positions on the base portion 110 so that the front panel holding portion 120 and the rear panel holding portion 130 can be attached and detached using bolt members or the like.

[0053] 7, the panel holding device 100 is provided with a connecting member mounting portion 140 for mounting the connecting member 1 for retaining wall blocks on the base portion 110 as necessary. The connecting member mounting portion 140 positions the connecting member 1 so that the lower attachment portions 22, 23 of the connecting member 1 are at substantially the same height positions as the lower connecting portions P17, P27 of the panels P10, P20, and has a mounting main body portion 141 on which the connecting member 1 is mounted, and a raised portion 142 that raises the mounting main body portion 141 to correspond to the height positions of the lower connecting portions P17, P27 of the panels P10, P20. In this connecting member mounting portion 140, the lower mounting portions 22, 23 of the connecting member 1 mounted on the mounting main body portion 141 are located at approximately the same height position as the lower connecting portions P17, P27 of each panel P10, P20. Therefore, when connecting each panel P10, P20 to the connecting member 1 for the retaining wall blocks, no special auxiliary work such as supporting the connecting member 1 for the retaining wall blocks at the mounting height position is required, and mounting can be easily carried out, improving work efficiency.

[0054] 14, in the panel holding device 100, adjustment parts (panel height adjustment part 117, front inclination adjustment part 127, rear inclination adjustment part, connecting member adjustment part 147) for finely adjusting the positions of the panels P10, P20 may be appropriately provided on the base part 110, the front inclination support part 125, the rear inclination support part 135, and the connecting member mounting part 140, as necessary. As the adjustment parts 117, 127, 137, and 147, well-known adjuster members are preferably used.

[0055] The panel height adjustment section 117 shown in FIG. 14(a) is a member for finely adjusting the vertical position of the rear panel P20, and is provided at an appropriate location on the base section 110 where the rear panel P20 can be placed, and is configured to push up the rear panel P20 from the bottom surface of the panel main body P21 so as to finely adjust the vertical position.

[0056] The front inclination adjustment unit 127 (back inclination adjustment unit 137) shown in FIG. 14(b) is a member for finely adjusting the inclination angle of the front panel P10 (rear panel P20), and is provided on the front inclination support unit 125 (back inclination support unit 135) of the front panel holding unit 120 (rear panel holding unit 130). The front inclination adjustment unit 127 and the back inclination adjustment unit 137 are configured to be able to finely adjust the inclination angle by pushing up each panel P10, P20 from below in the inclination direction. For example, the front inclination adjustment unit 127 pushes up the inwardly inclined front panel P10 from the inside to finely adjust the inclination angle. On the other hand, the back inclination adjustment unit 137 has a structure similar to that of the front inclination adjustment unit 127 as shown in the figure, and in the case of the outwardly inclined rear panel P20, it pushes up the rear panel P20 from the outside to finely adjust the inclination angle. Although not shown, if the rear panel is inclined inward, the rear inclination adjustment portion pushes up the rear panel from the inside to fine-tune the inclination angle.

[0057] The connecting member adjustment portion 147 shown in Figure 14(c) is a member for finely adjusting the vertical position of the connecting member 1 for retaining wall blocks placed on the connecting member mounting portion 140, and is provided on the mounting main body portion 141 of the connecting member mounting portion 140.It is configured to be able to adjust the vertical position by pushing up the connecting member 1 for retaining wall blocks from below.

[0058] In this way, by providing adjustment sections 117, 127, 137, 147 in each of the base section 110, the front inclined support section 125, the rear inclined support section 135, and the connecting member mounting section 140, it is possible to reduce errors in the positioning of each panel P10, P20 and the connecting member 1 for the retaining wall blocks, such as the height position of the rear panel P20, the inclination angles of the front panel P10 and the rear panel P20, and the height position of the connecting member 1 for the retaining wall blocks, thereby improving work accuracy.

[0059] In the panel holding device 100, as shown in Figs. 7 and 8, a panel upper portion adjustment member 150 may be provided for finely adjusting the interval S1 between the upper portions of the front panel P10 and the rear panel P20, as necessary. The panel upper portion adjustment member 150 has a front gripping member 151 for gripping the upper portion of the front panel P10, a rear gripping member 152 for gripping the upper portion of the rear panel P20, and a distance adjustment member 155 for connecting the front gripping member 151 and the rear gripping member 152 and widening or narrowing the interval between them. A known turnbuckle member or the like is preferably used as the distance adjustment member 155. In this panel upper portion adjustment member 150, the distance between the front gripping member 151 and the rear gripping member 152 can be widened or narrowed by operating the distance adjustment member 155. Therefore, the spacing S between the upper sides of the panels P10, P20 held by the holding members 151, 152 can be finely adjusted to reduce errors in the arrangement of the spacing between the panels P10, P20.

[0060] Next, there will be described a method for assembling a retaining wall block using the panel holding device 100. In the following example, the rear panel P20 is a self-supporting vertical panel.

[0061] First, the front panel P10 and the rear panel P20 are transported onto the base 110 by a transport device such as a crane, and the front panel P10 is placed on the front panel holding part 120, and the rear panel P20 is placed on the rear panel holding part 130. The front panel P10 is held in an inwardly inclined state with its inner part (front beam part 15) supported by the front inclined support part 125 and its outer lower end part P13 abutting against the front panel regulating part 121. The rear panel P20 is self-supported with its outer lower end part P23 abutting against the rear panel regulating part 131. At this time, the side parts P14, P24 of the front panel P10 and the rear panel P20 on one side are abutted against the panel side regulating part 115, respectively. Therefore, the front panel P10 and the rear panel P20 are arranged opposite each other on the base 110 with a predetermined interval S1, S2 while being prevented from lateral displacement.

[0062] Next, the retaining wall block connecting member 1 is placed on the outer surface of each beam portion P15, P25 of each panel P10, P20. At this time, the retaining wall block connecting member 1 is placed on the connecting member placement portion 140, so that the lower mounting portions 22, 23 are placed at approximately the same height position as the lower connecting portions P17, P27 of each panel P10, P20 without the worker performing auxiliary work such as lifting and supporting. Therefore, for example, for one connecting member 1, even a single worker can place the mounting portions 12, 22, 13, 23 of the retaining wall block connecting member 1 at appropriate connecting positions corresponding to the connecting portions P16, P17, P26, P27 of each panel P10, P20. When the front panel P10, the back panel P20, and the retaining wall block connecting member 1 are placed, respectively, the respective positions may be finely adjusted by the respective adjustment portions (117, 127, 147).

[0063] After the above arrangement is completed, the mounting parts 12, 22, 13, 23 are connected to the connecting parts P16, P17, P26, P27 using bolt members. The connecting procedure is, for example, provisionally tightening the upper connecting part P16 between the upper mounting part 12 on the front side and the front panel P10, the lower connecting part P17 between the lower mounting part 22 on the front side and the front panel P10, the lower connecting part P27 between the lower mounting part 23 on the rear side and the rear panel P20, and the upper connecting part P26 between the upper mounting part 13 on the rear side and the rear panel P20 in that order, and after each provisional tightening is properly completed, final tightening is performed in the same order. Note that the connecting procedure is not limited to this, and can be performed in any appropriate procedure that is less likely to cause distortion, etc.

[0064] Furthermore, when connecting a pair of connecting members 1,1 for retaining wall blocks, the occurrence of distortion can be more effectively suppressed by connecting the same parts in sequence. For example, when one worker is performing the work, the procedure can be such that each mounting portion 12, 22, 13, 23 and each connecting portion P16, P17, P26, P27 are alternately connected. For more efficient and highly accurate connection, it is preferable for each connecting member 1,1 to be connected simultaneously by one worker (total of two people). In this way, a retaining wall block B is obtained by connecting a pair of connecting members 1,1 for retaining wall blocks between the front panel P10 and the rear panel P20.

[0065] As described above, by using the retaining wall block connecting member 1 of the present invention, the front panel P10 and the rear panel P20 can be easily connected with little construction error and high precision. In particular, by holding the front panel P10 and the rear panel P20 with the panel holding device 100, the retaining wall block B can be easily obtained by simply placing and connecting a pair of retaining wall block connecting members 1,1 between the panels P10, P20. Therefore, the retaining wall block B can be assembled efficiently and precisely even at the construction site.

[0066] Furthermore, the connecting member for retaining wall blocks and panel holding device of the present invention are not limited to the above-described embodiments, and can be implemented by appropriately modifying parts of the configuration as long as it does not deviate from the spirit of the invention. [Industrial Applicability]

[0067] The connecting member for retaining wall blocks of the present invention and the panel holding device using this connecting member make it possible to easily obtain prefabricated retaining wall blocks with less construction error. In particular, it becomes possible to easily assemble the retaining wall blocks even at the construction site. Therefore, it is promising as an alternative to conventional connecting members for prefabricated retaining wall blocks. [Explanation of symbols]

[0068] 1, 1A, 1B, 1C Connecting members for retaining wall blocks 10 First construction section 11 1st erection main body part 12 Upper mounting part on the front side 13 Upper mounting part on the rear side 20 Second erection section 21 2nd erection main body part 22 Lower mounting part on the front side 23 Lower mounting part on the rear side 30 Installation section fixing member 100 Panel holding device 110 Base 111 Front beam resting part 112 Backrest part 115 Panel side regulation part 116 Side abutment surface 117 Panel height adjustment unit 120 Front panel holder 121 Front panel restriction 122 Front contact surface 125 Front tilt support 126 Inclined support body 127 Front tilt adjustment section 130, 130a, 130b, 130c Rear panel holding part 131, 131a, 131b Rear panel restriction 132 Back contact surface 135a,135b Dorsal slope support 136a,136b Inclined support body 137 Dorsal tilt adjustment section 140 Connecting member placement section 141 Mounting body part 142 Bulky part 147 Connection member adjustment part 150 Panel upper adjustment member 151 Front gripping member 152 Back gripping member 155 Spacing adjustment section B, B1, B2, B3 Retaining wall blocks P10 Front Panel P11 Front panel panel body P12 Outer top edge of front panel P13 Outer bottom edge of front panel P14 Side of one side of the front panel P15 Front beam P16 Upper connection of front panel P17 Lower connection of front panel P20, P20a, P20b, P20c Rear Panel P21 Rear panel panel body P22 Outer top edge of rear panel P23 Outer bottom edge of rear panel P23a Bottom edge of the inside of the rear panel P24 Side of one side of rear panel P25 Back beam section P26 Upper connection of rear panel P27 Lower connection of rear panel S1: The upper gap between the front panel and the rear panel S2: The specified gap between the bottom of the front panel and the bottom of the rear panel S10 Upper installation distance interval S20 Lower installation distance interval

Claims

1. When forming a retaining wall block (B) by using a holding device (100) to connect a front panel (P10) and a rear panel (P20) facing outward with a predetermined distance (S1, S2) between them via a connecting member (1), The front panel (P10) and the rear panel (P20) each have a panel body and a beam portion (P15, P16) protruding from the inner side of the panel body. The beam portion is formed at a predetermined position with upper connecting portions (P16, P26) and lower connecting portions (P17, P27), The connecting member (1) is Between the front panel and the rear panel, The first erection section (10) has upper mounting sections (12, 13) attached to the upper connecting section on both ends of a first erection main body section (11) erected at the top, the upper mounting sections (12, 13) being provided at an interval (S10) corresponding to an upper erection distance that defines the predetermined interval (S1), a second erection section (20) has lower mounting sections (22, 23) attached to the lower connecting section on both ends of a second erection main body section (21) erected at the bottom, the lower mounting sections (22, 23) being provided at an interval (S20) corresponding to a lower erection distance that defines the predetermined interval (S2), and an erection section fixing member (30) that fixes the first erection section and the second erection section together, The holding device (100) comprises: A base portion (110) on which the front panel and the rear panel are placed; The base part has a front panel holding section (120) having a front panel regulating section that determines the position of the front panel and a front side inclined support section that supports the front panel in an inwardly inclined state, and a rear panel holding section (130) having a rear panel regulating section that determines the position of the rear panel at a position spaced from the front panel regulating section by a distance corresponding to the predetermined interval (S2); a connecting member placement section (140) for placing the connecting member such that each lower mounting section (22, 23) of the connecting member is at the same height position as each lower connecting section (P17, P27) of each panel; A method for manufacturing a retaining wall block, characterized in that the front panel and the rear panel are connected and fixed at a predetermined height and at predetermined intervals via the connecting members to form a retaining wall block.

2. 2. The method for manufacturing a retaining wall block according to claim 1, wherein the base portion is provided with a panel side regulating portion for regulating the side position of one side of the front panel and the rear panel.

3. 2. The method for manufacturing a retaining wall block according to claim 1, wherein the connecting member placement portion is provided with a connecting member adjustment portion for finely adjusting the vertical position of the connecting member.

4. 2. The method for manufacturing a retaining wall block according to claim 1, wherein the retaining device has a panel upper portion adjustment member for finely adjusting the gap between the upper sides of the front panel and the rear panel.

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