Block foundation

Abstract

To provide a foundation body for a stacking block which enables simple adjustment of a stacking gradient of a stacking block at a site, and enables quick stacking work of the stacking block without causing an ordering mistake and a delivery mistake.SOLUTION: A foundation body 100 for a stacking block is arranged at a slope toe position of a slope surface when a stacking block 90 is stacked along the slope surface has a front side structure part 10 and a rear side structure part 20 having different erection heights from an installation surface, wherein the rear side structure part 20 is formed with a step part 50 having a plurality of steps 52 and 54 at required intervals from the rear side structure part 20 toward the front side structure part 10, and bottom surfaces 52A and 54A in the steps 52 and 54 are formed on an inclined surface that becomes gradually higher toward the front side structure part 10.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a foundation for masonry blocks, and more particularly to a foundation for masonry blocks for use in constructing retaining walls and the like, which constitutes a base portion when stacking masonry blocks. [Background technology]

[0002] Concrete blocks known as masonry blocks are used in slope protection works such as retaining walls. When stacking these masonry blocks, they are stacked at a specified gradient to match the gradient of the slope. These masonry blocks are placed on the top surface of a masonry block foundation that is laid on the original ground. Conventional masonry block foundations include on-site cast-in-place foundations that are formed by pouring concrete on-site, and secondary product foundations that are pre-formed in a factory and laid on-site. An example of such a secondary product foundation for masonry blocks is the structure disclosed in Patent Document 1 (Utility Model Registration No. 3201484). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Utility Model Registration No. 3201484 Summary of the Invention [Problem to be solved by the invention]

[0004] Cast-in-place foundations for masonry blocks can be constructed to match the stacking gradient of the masonry blocks at each construction site. However, this requires the construction of formwork, pouring concrete, curing, and demolding, which increases the time required to stack the masonry blocks. On the other hand, with secondary product foundations for masonry blocks, if a product with a shape that matches the stacking gradient of the masonry blocks is ordered, the masonry blocks can be stacked immediately, but there are issues such as the delivery of foundations for masonry blocks that are not suitable for the construction site due to ordering or delivery errors. Another issue is that the increased variety of products leads to rising manufacturing costs. [Means for solving the problem]

[0005] Therefore, the object of the present invention is to provide an inexpensive foundation for masonry blocks that allows the stacking gradient of the masonry blocks to be easily adjusted on-site, and that enables the work of stacking the masonry blocks to be carried out quickly without the delivery of products that are unsuitable for the construction site due to ordering or delivery errors.

[0006] That is, the present invention is a foundation for masonry blocks that is disposed at the foot of a slope when masonry blocks are stacked along the slope, and has a front side structural part and a rear side structural part that rise to different heights from the installation surface, and the rear side structural part is formed with a step part having a plurality of steps at required intervals from the rear side structural part toward the front side structural part, each The bottom surface of the step is formed as an inclined surface that gradually becomes higher as it approaches the front structure portion.

[0007] This makes it possible to provide a foundation for masonry blocks at a low cost, which allows the stacking gradient of the masonry blocks to be easily adjusted on-site, prevents delivery of products that are not suitable for the construction site due to ordering or delivery errors, and enables quick stacking of the masonry blocks.

[0008] Also, eachIt is preferable that the step has a lowermost height position that gradually decreases with increasing distance from the front structural portion.

[0009] This makes it possible to form a block mounting surface with a variety of block gradients even in a compact block foundation.

[0010] In addition, the front side structure includes: each an opening end surface on the side of the slope of the step; or each So that it is flush with the bottom surface of the step each The step Part or all of It is preferable that the block stacking unit has a block-placing surface forming mark, which, when filled with a filler, forms a block-placing surface at which the stacking gradient of the blocks becomes a predetermined gradient.

[0011] This allows a wide range of mounting surfaces for the building blocks to be formed, and the building blocks can be stacked on the mounting surfaces in a stable manner.

[0012] The lamination block mounting surface forming mark is preferably a ridge line on the front structural portion.

[0013] This improves the appearance of the masonry block foundation.

[0014] The filling material is preferably concrete or mortar.

[0015] This allows the stacking block mounting surface to be formed cheaply and easily. Effect of the Invention

[0016] According to the configuration of the foundation body for masonry blocks in the present invention, the stacking slope of the masonry blocks can be easily adjusted on site, and an inexpensive foundation body for masonry blocks can be provided that allows for quick stacking of masonry blocks without the delivery of products that are unsuitable for the construction site due to ordering or delivery errors. [Brief description of the drawings]

[0017] [Figure 1] FIG. 2 is a side view of a foundation for masonry blocks in this embodiment. [Diagram 2] FIG. 2 is a plan view of a foundation for masonry blocks in this embodiment. [Diagram 3] FIG. 3 is a cross-sectional view taken along line III-III in FIG. [Figure 4] 4 is a cross-sectional view taken along line IV-IV in FIG. 2. [Diagram 5] 3 is a cross-sectional view taken along line VV in FIG. 2. [Figure 6] FIG. 2 is a side view showing an example of use of a foundation body for masonry blocks in this embodiment. [Figure 7] FIG. 11 is a side view showing another example of use of the masonry block foundation body in this embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] As shown in Figs. 1 to 5, the foundation body 100 for masonry blocks in this embodiment has a front structural part 10 and a rear structural part 20, which have different rising heights from the bottom surface, which is the installation surface. In this specification, the front side refers to the outer surface side of the covering surface constructed by the masonry blocks 90, and the rear side refers to the slope side (natural ground side). The front structural part 10 and the rear structural part 20 are integrally formed by the connecting part 30 and have a rectangular shape in a plan view. The front structural part 10 in this embodiment is formed to be higher than the rising height from the bottom surface of the rear structural part 20. In addition, the concrete filling part 40 is formed by the area partitioned by the front structural part 10, the rear structural part 20, and the connecting part 30. The concrete filling part 40 penetrates the foundation body 100 for masonry blocks in the height direction. Such a foundation body 100 for masonry blocks can be manufactured using so-called zero slump concrete and a quick-release formwork.

[0019] In this embodiment, the front structural part 10 is formed in a mountain-like shape in a side view, tapering gradually from the bottom surface to the top surface, as shown in Fig. 1. The top surface of the front structural part 10 has a horizontal surface part 12 and an inclined surface part 14 that gradually becomes lower on the side of the rear structural part 20. In this specification, the boundary line between the horizontal surface part 12 and the inclined surface part 14 is referred to as a first ridge line 15, and the boundary line between the inclined surface part 14 and the side surface 16 on the side of the rear structural part 20 is referred to as a second ridge line 17.

[0020] The rear structural part 20 is formed with a step part 50 having a plurality of steps 52, 54 at a required interval. A block 90 (described later) is placed on each of the steps 52, 54 so as to span the first ridge 15 or the second ridge 17. As is clear from FIG. 1 and the like, the bottom surface 52A of the step 52 and the bottom surface 54A of the step 54 are both formed as inclined surfaces that gradually become higher as they approach the front structural part 10. In addition, the lowest height position H1 of the step 52 is formed to be lower than the lowest height position H2 of the step 54. In this way, the steps 52, 54 are formed so that the lowest height positions (H1, H2) gradually become lower as they approach the front structural part 10. In addition, the step part 50 can also have a protrusion 56 formed on the rear side (slope side) of the step 54. The upper surface of the protrusion 56 is formed into an inclined surface that gradually becomes higher on the front structure 10 side, similar to the bottom surfaces 52A, 54A of the steps 52, 54.

[0021] The height of the connecting part 30 that connects the front structural part 10 and the rear structural part 20 is lower than the height of the side surface of the rear structural part 20 on the side of the front structural part 10. A threaded insert 32 for connecting a hook (not shown) used to hoist the masonry block foundation 100 is embedded in the upper surface of the connecting part 30. As such a threaded insert 32, a so-called P insert can be used.

[0022] Next, an example of use of the foundation body 100 for masonry blocks in this embodiment will be described with reference to FIG. 6. The foundation body 100 for masonry blocks is placed on foundation concrete (not shown) poured at the bottom of the slope and on a height adjustment material (not shown) laid on the top surface of the foundation concrete. The foundation body 100 for masonry blocks is continuously placed along the bottom of the slope with the rear structural part 20 facing the slope. A known buffer member (not shown) can also be placed between adjacent foundation bodies 100 for masonry blocks. The concrete filling part 40 is filled with concrete (not shown) to improve the integration of the foundation body 100 for masonry blocks and the foundation concrete. It is preferable to fill the concrete filling part 40 with concrete within a range below the height of the connecting part 30.

[0023] After the foundation body 100 for masonry blocks is installed, the builder places the masonry blocks 90 on the foundation body 100 for masonry blocks. At this time, the lower corner of the back side of the masonry block 90 is placed on the step 52 or the step 54 according to the stacking gradient, and the lower corner of the front side of the masonry block 90 is placed so as to span the first ridge 15 or the second ridge 17. Note that FIG. 6(A) shows the stacked state when the stacking gradient of the masonry block 90 is a 5-minute gradient. Specifically, the bottom surface of the masonry block 90 spans the step 52 and the first ridge 15 of the foundation body 100 for masonry blocks. Also, FIG. 6(B) shows the stacked state when the stacking gradient of the masonry block 90 is a 4-minute gradient. Specifically, the bottom surface of the masonry block 90 spans the step 54 and the first ridge 15 of the foundation body 100 for masonry blocks.

[0024] FIG. 6(C) shows a state where the masonry blocks 90 are stacked with a 3-minute gradient. Specifically, the bottom surface of the masonry block 90 is suspended over the protruding portion 56 and the first ridge 15 of the masonry block foundation 100. In this way, by selectively using the steps 52, 54 or the protruding portion 56 and the first ridge 15 when placing the masonry block 90 on the masonry block foundation 100, the same masonry block foundation 100 can accommodate a variety of stacking gradients. Once the stacking gradient of the lowest masonry block 90 on the masonry block foundation 100 is determined, the masonry blocks 90 can be stacked with a predetermined stacking gradient by subsequently carrying out the normal stacking process for the masonry blocks 90.

[0025] Next, another example of use of the masonry block foundation 100 in this embodiment will be described with reference to Fig. 7. Fig. 7(A) shows the state when the block stacking gradient is a 5-minute gradient. Fig. 7(B) shows the state when the block stacking gradient is a 4-minute gradient. Fig. 7(C) shows the state when the block stacking gradient is a 3-minute gradient.

[0026] As shown in FIG. 7(A), the builder fills the upper side of the connecting portion 30, the concrete filling portion 40, and the inclined surface portion 14 with the filling material 60 so that the bottom surface 52A of the step 52 and the first ridge 15 are flush with each other. Concrete or mortar can be used as the filling material 60, but the type of filling material 60 is not particularly limited as long as it is a material that is easy to mold and has a predetermined hardness after molding. After the filling material 60 hardens, the same plane as the upper surface of the filling material 60 becomes the lamination block mounting surface 70 for a 5-minute gradient. Also, as shown in FIG. 7(B), the builder fills the step 52, the upper side of the connecting portion 30, the concrete filling portion 40, and the inclined surface portion 14 with the filling material 60 so that the opening side end surface 52Z on the slope side of the step 52 and the first ridge 15 are flush with each other. After the filling material 60 hardens, the same plane as the upper surface of the filling material 60 becomes the lamination block mounting surface 70 for a 4-minute gradient.

[0027] 7(C), the builder can also fill the steps 52, 54, the upper side of the connecting portion 30, the concrete filling portion 40, and the inclined surface portion 14 with the filling material 60 so that the opening side end surface 54Z of the step 54 is flush with the first ridge line 15. After the filling material 60 hardens, the same plane as the upper surface of the filling material 60 becomes the lamination block mounting surface 70 for a 3-minute gradient.

[0028] As explained above, in Fig. 7, the lamination block mounting surface 70 is formed by filling with the filler 60 so that the bottom surface 52A of the step 52 or the opening side end surfaces 52Z, 54Z on the slope sides of the steps 52, 54 are flush with the first ridge line 15 of the front structural portion 10. That is, in the lamination block foundation 100 shown in Figs. 6 and 7, the first ridge line 15 constitutes the mark for forming the lamination block mounting surface. In the lamination block foundation 100 shown in Figs. 6 and 7, the first ridge line 15 is used as the mark for forming the lamination block mounting surface, but it is also possible to adopt a form in which the second ridge line 17 is used as the mark for forming the lamination block mounting surface.

[0029] In this way, even in the example of use shown in Figure 7, the lamination block mounting surface 70 can be formed with a plurality of different stacking gradients in the same lamination block foundation 100. In particular, in the example of use shown in Figure 7, the lamination block mounting surface 70 can be formed into a flat surface that receives the entire bottom surface of the lamination block 90, which is advantageous in that the lamination block 90 can be placed in a more stable state.

[0030] Although the masonry block foundation 100 according to the present invention has been described in detail above, the technical scope of the present invention is not limited to the above embodiment. For example, in the above embodiment, the step portion 50 has two steps 52, 54, but it is also possible to adopt a configuration in which the step portion 50 has three or more steps. By increasing the number of steps in the step portion 50, it is possible to construct a masonry block mounting surface 70 with a greater number of predetermined gradients.

[0031] In the above embodiment, the lowest height position H1 of the step 52 of the stepped portion 50 is set to a position lower than the lowest height position H2 of the step 54 (a different height position), but the lowest height position H1 of the step 52 and the lowest height position H2 of the step 54 can also be set to the same height. In this case, the stacking gradient of the masonry blocks 90 can be changed by varying the inclination angles of the bottom faces 52A, 54A relative to the bottom face of the masonry block foundation body 100.

[0032] In the above embodiment, when constructing the lamination block mounting surface 70, the connecting portion 30, the concrete filling portion 40, and a part of the step portion 50 are filled with the filler 60, but the present invention is not limited to this form. It is also possible to employ a form in which the filler 60 is filled in all or part of either the connecting portion 30 or the concrete filling portion 40 and the step portion 50. This makes it possible to reduce the amount of filler 60 used.

[0033] It is also possible to adopt a form in which a list of stacking gradients corresponding to combinations of placement locations for the masonry blocks 90 is displayed on the surface of the masonry block foundation 100. It is also possible to adopt a form in which a list of stacking gradients obtained by combinations of each step in the step section 50 and the masonry block placement surface formation markers is displayed on the surface of the masonry block foundation 100. It is preferable that the list of stacking gradients is displayed in places that will be hidden after the masonry blocks 90 are stacked, such as the connecting section 30, the concrete filling section 40, and the bottom surfaces 52A, 54A of the steps 52, 54. This makes it possible to eliminate mistakes in the stacking gradients of the masonry blocks 90.

[0034] In the above embodiment, the first ridgeline 15 or the second ridgeline 17 is used as the mark for forming the lamination block mounting surface, but the present invention is not limited to this embodiment. The mark for forming the lamination block mounting surface does not have to be the ridgeline of the lamination block foundation body 100, and can be one that is displayed on the side surface 16 of the lamination block foundation body 100 by a known method.

[0035] Furthermore, the configuration of the present embodiment described above may be appropriately combined with any of the modified examples described in the specification or other known configurations. [Explanation of symbols]

[0036] 10:Front side structure part 12:Horizontal part 14: Slope section 15: First ridge (mark for forming the stacking block placement surface) 16: Side 17: Second Ridge 20: Rear side structure part 30:Connection part 32: Thread insert 40: Concrete filling section 50: Step 52, 54: Steps 52A, 54A: Bottom 52Z, 54Z: Opening side end surface 56:Protrusion 60: Filling 70: Loading block placement surface 90: Block 100: Foundation for masonry blocks H1: Bottom height position H2: Bottom height position

Claims

1. A foundation for masonry blocks that is disposed at the foot of a slope when stacking masonry blocks along the slope, comprising: The front structural portion and the rear structural portion have different heights from the installation surface, a step portion having a plurality of steps at required intervals from the rear side structural portion toward the front side structural portion is formed in the rear side structural portion, 13. A foundation for masonry blocks, comprising: a bottom surface of each of said steps formed into an inclined surface which gradually becomes higher as it approaches said front structural portion.

2. A foundation body for masonry blocks as described in claim 1, characterized in that the lowest height position of each of the steps gradually decreases as it approaches the front structural portion.

3. The front structural portion has a block placement surface forming marker that forms a block placement surface at which the stacking gradient of the blocks is set to a predetermined gradient by filling part or all of each of the steps with a filler so that the front structural portion is flush with the opening end face on the slope side of each of the steps or the bottom surface of each of the steps.

4. 4. The foundation for masonry blocks according to claim 3, wherein the mark for forming the masonry block mounting surface is a ridge line on the front structural portion.

5. 5. A foundation for masonry blocks according to claim 3 or 4, characterized in that the filling material is concrete or mortar.

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