JP3065629U - U-shaped concrete block - Google Patents

Abstract

(57) [Abstract] [Problem] The present invention relates to maintenance of natural environment and simplification of construction related to the construction of piles in civil engineering work. SOLUTION: Unevenness having a certain angle or the like is formed on an outer surface of a side wall of a U-shaped concrete block.
The top, bottom, left, and right are combined according to the terrain, and a water hole 12 is provided in this, depending on the type of construction.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention is a concrete block suitable for civil engineering work under the soil condition formed by the gravel intercalation layer sand, gravel, clay, silt layer and the alternation layer of natural ground.

[0002]

[Prior art]

 In the prior art, concrete blocks used in various fields of construction are either massive or flat slabs, and although there are some differences in shape, relatively large ones are used. Transport and installation work with construction machinery, and in the case of a flat plate type, a large number of piles are required. This is a situation that has destroyed the current situation unnecessarily and has caused a great transformation. In particular, when using conventional blocks in rivers and marshes, the natural environment and landscape were destroyed and the waterways were cut off, and there were some parts that did not necessarily match the original way of flood control water use.

[0003]

[Problems to be solved by the invention]

 The present invention has been adapted from the above-mentioned absurdities to the natural ground conditions, instead of the conventional large block block-shaped blocks in order to save public construction costs for nature conservation and environmental conservation and to secure the stability of structures. Utilizing this natural condition to the utmost, as a stacking work, we propose a U-shaped concrete block that has a structure that is stable in terms of engineering and can be easily adapted to the demands of the times.

[0004]

[Means for Solving the Problems]

 In this block, the bottom surface of the bottom plate is made uneven at a certain angle, and the top and bottom of the side walls are made to have the same unevenness. I do.

[0005] Similarly, the outer surface of the side wall of this block is provided with irregularities having a certain angle, and is continuously arranged in parallel in a left-right direction so as to mesh with an adjacent block to be installed, thereby securing integrity and being robust without movement. Shall be.

[0006] Similarly, the inside of the bottom slab and the side walls are also provided with certain irregularities or protrusions to prevent slippage of the filled soil inside the box, and as a structural unit including the contents, to secure the soil identity with the ground. Satisfy the specifications while maintaining stability.

[0007] If the soil of the ground or embankment at the place where the blocks are installed is relatively stable, the intervals between the blocks are appropriately arranged, and the blocks are filled with stable earth and sand as a space between the blocks. The overall cost of stacking can be greatly reduced.

[0008] Water holes are appropriately arranged on the side walls and the bottom slab to maintain the water content of the canned soil and the ground or the embankment by the water permeability, thereby preventing the structural body from being distorted due to an abnormal change in soil quality.

[0009] In land-based tatami mats such as earth retaining or burial, holes having an appropriate diameter are arranged so as to maintain a constant hydrous condition of the soil behind and minimize the change in the angle of repose so as not to cause collapse deformation. In addition, turf grass and the like are planted in the exposed steps when the upper and lower layers are superimposed, so that the landscape can be continuously improved.

[0010] With respect to rivers and marshes and other places where the natural environment is to be maintained and improved, the water behind the pavement works with rivers and marshes and the like, and the water level of the water is extremely good. However, it must be constructed with a structure that can provide a so-called good waterfront that matches the ecology of waterfront plants. In particular, this U-shaped concrete block effectively acts on underflow water flowing from the upstream through the embankment, seepage water from the hinterland, capillary action due to fluctuations in the front water level, etc. It can maintain the stability of the whole structure including the surrounding earth and sand arranged as the laying work. Furthermore, it is possible to maintain a constant water level around the connection between the riverbed and the revetment, which contributes to the preservation of the biological environment and maintenance of the landscape.

[0011] When applied to coastal works, especially in step construction, etc., it is possible to cover the stacking area without difficulty against the gradient from the shoreline seabed gradient to the hinterland, and to arrange coastal vegetation in the upper and lower spaces to protect the environment. It is possible to set up a coastal structure with wave-dissipating properties.

Regarding the improvement of the unstable ground, this U-shaped concrete block is appropriately placed facing upward, filled with earth and sand, and the same blocks are arranged thereon. Installation can be possible. It is useful for strengthening unstable soft ground by removing water from mud and replacing high-quality soil filled with mud, by squeezing water from fluid soil with high water content through water holes in the side wall of the block bottom slab.

[0013] Concerning the agility of the construction, by specifying the overlapping position in the order of the irregularities by the constant number of irregularities in the upper, lower, left and right directions, it is possible to easily install the tatami mats with a predetermined slope.

[0014] The inside and outside soil of the U-shaped concrete block should be similar to the soil in the construction site, and it is possible to fill the block with remaining soil on land, riverbed soil on rivers, and shore generated material on the coast. It is possible to achieve significant reductions in construction costs as well as labor savings.

[0015]

[Embodiment of the invention]

 An embodiment of the invention will be described based on an example with reference to the drawings. In FIGS. 1 and 2, the concave side 2 of the side 23 of the U-shaped concrete block is convex and the opposite side 23 is also symmetrical with three and four irregularities. Similarly, the bottom slab 5 also has concave 6 convex 7. Reference numeral 8 in FIGS. 4A, 4B, and 4C is a reinforcing bar that is appropriately arranged according to the block configuration. The front plate 9 to be the exposed portion in FIG. 3a, the front plate 9a in FIGS. 7 and 5a, and the front plate 9a in FIGS. 7 and 5a are made of wooden material or precast decorative material, etc. Combine with mold block. The opening 11 in FIG. 3b comes into contact with the earth and sand surface of the ground at the construction site. Numerals 12 and 14 are provided as appropriate. In addition, columns 25 and 25a are provided in the middle of the box shown in FIGS. 9 and 10, and a short front plate 9 can be used, so that the stacking can be stabilized.

When the blocks shown in FIGS. 1 and 2 are arranged in parallel and are not required to be continuous depending on the geographical characteristics of the site and are installed at appropriate intervals such as every other block, the connection between the next blocks is made as shown in FIG. The protrusion 24 is inserted into the assembly groove 16 by the front plate 9a having an appropriate length. The connection between the blocks is made by the fastener 24 or the like using the water inlet 14 as necessary. The front part of each step is designed to be engaged with each block at a constant pitch.

When the blocks shown in FIGS. 1 and 2 are directly joined to the side, the front plate 9 is attached, and the concave 1 convex 2 on the side surface symmetrical to the side surface of the other blocks and the convex 4 concave 3 on the combination side are arranged in combination. be able to.

FIG. 8A shows a corrugated side wall 23 of this block, and FIG. 8B shows a U-shaped side wall. FIG. 8c shows a case in which the inner surface of the side wall has a convex portion, and all of these are easy to manufacture a symmetrical type of the side wall of the front plate 9 as in the above, and can be combined.

FIG. 6A shows a structure in which the gradient is set to about 1: 0.5. The upper end portion 18 of each block is inclined by a gradient except for a superimposed portion to eliminate unnecessary portions. 2 can be determined by the combination gradient and the number of combinations of the concaves 19 and convexes 20 of FIG. FIG. 6b shows the case where the gradient is about 1: 1.0, and the same housing can cope with the terrain when the construction gradient is different.

FIG. 11 shows an example in which the present invention is applied to a thin staircase which is arranged on a surface having a small gradient such as a shoreline, and can be arranged without difficulty along the shoreline gradient. 25 is a sandy ground 27 is a water surface.

FIG. 12a relates to the improvement of the unstable ground, and a side view 12b in which this block is appropriately arranged upward and the inside is filled with earth and sand is a front view thereof. The projection 4 is combined with the projections 19, 21 and the projections 20, 22 above and below the projection 1 and the depression 2 to stabilize the combination.

[0022]

[Effect of the invention]

 The present invention has the following effects based on the above description.

[0023] The structure in which the side walls of the U-shaped concrete block are provided with irregularities enables a stable combination that conforms to the natural geological features of the construction site. Moreover, construction according to a natural shape having a partial curve in a plan view can be performed.

[0024] The combination of the unevenness of the upper and lower surfaces of the U-shaped concrete block allows the construction to be performed in accordance with the natural slope gradient, with the reduction of the amount of earth work and the safety and security.

The overall strength of the piling work can be maintained by the combination of the uneven surface in the horizontal and vertical directions provided on the U-shaped concrete block, and natural attachment to the periphery of the construction site can be expected. In addition, since the work can be performed according to the standard dimensions of the unevenness, there is no dimensional deviation in the work type. Furthermore, since the soil at the construction site is packed and used in the blocks, construction costs for the treatment and transportation of residual soil can be reduced, and economic efficiency can be expected.

Since the side wall and the bottom plate have a water seepage hole, by improving the familiarity at the interface with the natural soil, the ground can have a certain water-containing state, and the squeezing water is U-shaped. It can penetrate through the space between the filling soil and ooze in any direction of the left, right, top and bottom of the concrete block. As a result, the soil of the ground can be maintained in a stable and stable condition close to the optimum condition without saturating the soil, and the work can be made stable without applying abnormal earth pressure to the work. The exposed front surface of the block has a structure in which natural trees can be attached, and the upper surface of the top of the block can be used for planting lawn grass, etc., which is useful for environmental protection and aesthetic formation.

[0027] Especially when applied to stair construction for coastal preservation, the block step is relatively small and follows the slope of the shoreline, so it is used in combination with large blocks with large steps, breakwaters, artificial reefs, etc. Even if there is no shoreline, the shoreline can be maintained as a seawall or staircase without breaking the terrain along the natural scenery. It is possible.

The consolidation of the unstable ground can be quickly accelerated to ensure its stability. This U-shaped concrete block is filled with good-quality sand and gravel, sinks into unstable ground, exudes moisture from the side walls of the block and the holes in the bottom slab, and stacks the required number of blocks vertically and horizontally to drain water. The consolidation of the clay silt and mud layers can be completed in a relatively short time.

[Brief description of the drawings]

FIG. 1 is a plan view of a U-shaped concrete block.

FIG. 2 is a side view of a U-shaped concrete block.

FIG. 3a is a front view of a U-shaped concrete block.

FIG. 3b is a rear view of the U-shaped concrete block.

FIG. 4a is a plan view showing an example of arranging reinforcing bars of this block.

FIG. 4b is a rear view showing an example of arranging reinforcing bars of this block.

FIG. 4c is a side view of a reinforcing bar portion.

FIG. 5a is a perspective view of a U-shaped concrete block,
FIG. B shows the insert for the front plate only.

FIG. 6a is a side view showing a construction state with a slope of 1: 0.5.

FIG. 6b is a side view showing a construction state with a slope of 1: 1.0.

FIG. 7 is a front view showing an example of a combination construction of the blocks.

FIG. 8A is a perspective view showing an example of a side wall shape.

FIG. 8B is a perspective view showing an example of a side wall shape.

FIG. 8C is a perspective view showing an example of a side wall shape.

FIG. 9 is a plan view of a block having an intermediate support.

FIG. 10 is a side view of a block having an intermediate support.

FIG. 11 is a side view of a block used for a coastline or the like.

FIG. 12a is a side view of a block used in an unstable ground.

FIG. 12b is a rear view of a block used in an unstable ground.

[Explanation of symbols]

 1 U-shaped side concave portion 2 U-shaped side convex portion 3 U-shaped side opposite concave portion 4 U-shaped side opposite convex portion 5 U-shaped bottom surface 6 U-shaped bottom surface concave portion Portion 9 Front plate 9a Front plate 12 Water passage hole 14 Water passage hole 19 Upper surface concave portion 20 Upper surface convex portion 21 Lower surface concave portion 22 Lower surface convex portion 25 Intermediate support 25a Intermediate support 26 Loading soil

────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] March 25, 1999 (1999.3.2
5)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims for utility model registration

[Correction method] Change

[Correction contents]

[Utility model registration claims]

2. Delete

[Procedure amendment]

[Submission date] August 5, 1999 (1999.8.5)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims for utility model registration

[Correction method] Change

[Correction contents]

[Utility model registration claims]

Claims (2)

[Utility model registration claims] The present invention relates to a construction and a simple structure of a tatami mat used as a work for civil engineering work, wherein a box body is formed in a U-shape, and concave and convex parts 1, 3, and convex parts 2, 4 are formed on both side walls 23 thereof. The same concave 19 convex 20 and concave 21 convex 22 are provided on the upper and lower surfaces.
a, and insert the earth and sand 2b to form a box that is integrated with the back ground surface 11 and the in contact with the sand and gravel. U-shaped concrete block 2. A method of providing an inclined step 1 above the side wall 23 of the box, and configuring the number of combinations so as to match the inclination of the construction site.
U-shaped concrete block provided with 4 as appropriate.