JP2775385B2 - Tension block and its construction method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention is applicable to a slope having a slope of approximately 1: 1.0 or less, such as a river, a roadside cliff, or a park.
The present invention relates to an upholstery block used for low-water revetment, embankment, earth retaining, and the like, a hanging bracket for transporting the upholstery block, and a method of constructing the upholstery block.

[0002]

2. Description of the Related Art Conventionally, construction for protecting a gentle slope such as low-water revetment or embankment of a river, embankment of a park, and other earth retaining works is performed by arranging an existing large block having a thickness of 35 cm on backing material. Then, in order to integrally connect the blocks, put the connecting reinforcing bars and metal fittings inside, fill them with joint mortar and concrete, and lay them in a watertight manner, or place them on the backing material with a thickness of 3mm.
A 5 cm tension block is filled with filling concrete to keep the water tightness and integrity between each block. However, in such a conventional block construction method, it is necessary to fill each block with a large amount of joint mortar or concrete, or to add a connecting reinforcing bar or metal fittings. It was necessary or required a lot of labor and time. Also,
Since the construction requires a lot of labor and a long time, it was not possible to sufficiently cope with emergency revetment work such as disaster recovery.

[0003]

SUMMARY OF THE INVENTION In the upholstery block which protects a gentle slope such as a bank of a river, embankment, earth retaining, etc., the problems in the conventional block and its construction method are solved, and the lining block standard can be obtained simply by laying. An object of the present invention is to provide a tension block which can obtain a cross section, can be safely, reliably, and beautifully constructed with a small amount of labor and time, and a construction method thereof.

[0004]

SUMMARY OF THE INVENTION The present invention relates to an engaging groove which is formed by displacing an upper half and a lower half of a block having a square front surface and a square back surface so as to be displaced diagonally from each other and oriented vertically. Formed on the engaging portion consisting of the convex ridge, the front side consisting of the upward engaging portion and the square surface and the back side consisting of the downward engaging portion and the rectangular back surface, the front side engaging portion and the back side engaging A tension block is provided in which the thickness of the part in the engaged state is set to the thickness of the block.

The rectangular front surface and the rectangular back surface of the block are rectangular tension blocks (hereinafter referred to as "rectangular blocks") each having a short side and a long side twice as long as the rectangular side, and both the vertical and horizontal sides are shorter than the rectangular block. 2 of a square tension block that is the same length as the side (hereinafter referred to as a “square block”)
Types of upholstered blocks.

[0006] Further, an engaging portion comprising a downward engaging concave groove and an engaging ridge which meshes downward with the front surface engaging portion of the tension block, a back surface of the downward engaging portion, and an adjacent narrow rectangular shape. It comprises an end surface, an upper engaging groove and an engaging ridge that mesh with the rear engaging portion of the front side end block and the back surface engaging portion of the tension block, the upper surface side end block being a convex ridge having a height smaller than the end surface. A back side end block is formed of an engaging portion, a back surface of the upward engaging portion, an adjacent narrow rectangular end back surface, and a protruding ridge having a height smaller than the end rear surface.

In each of the above blocks, a connecting reinforcing bar is erected on the upward engaging ridge, a connecting hole for inserting the connecting reinforcing bar is provided in the downward engaging concave groove, and a waterproof rubber seal is provided in the upward engaging concave groove. Is provided, and a suspension hole for penetrating the suspension fitting is provided in the block side wall toward the opposite side wall. That is, claim 1
In the invention of the above, it is a square or a rectangle having an area twice as large
Upper half and lower half of block with square front and square back
Side halves are displaced in the diagonal direction and engage with the engagement grooves that face up and down
Consisting of an engaging portion of a ridge and an upwardly facing engaging portion and a square surface
A back surface consisting of a square back surface of the front side and the downwardly engaging portion
In the square block consisting of
Connecting rebars standing on the strips and connecting rebars
Arranged in the connection hole for inserting the reinforcing bar and the upward engaging groove.
Waterproof rubber seal, penetrating from block side wall to opposite side wall
A tension block characterized by having a suspended hanging hole.
You. According to the second aspect of the present invention, the upward engagement of the rectangular tension block is achieved.
Is the downwardly engaging groove and downwardly engaging ridge that engage downwardly into the mating part?
A downward engaging portion, and a back surface and an adjacent portion of the downward engaging portion.
The end surface of the narrow rectangle and the height from the end surface
In the front side end block consisting of the back ridge,
A connecting hole provided in the engaging groove of
Hanging holes penetrating from the lock side wall to the opposite side wall
And a front end block. Claim 3
In the invention, the downward engagement portion of the square tension block
An upward engaging concave groove and an engaging ridge
An engagement portion, a back surface of the upward engagement portion and an adjacent narrow rectangle.
The back surface of the end, and a surface ridge having a dimension height from the back surface of the end portion.
In the back end block made of
It is arranged in the connecting reinforcing bar standing up on the ridge and the upward engaging groove.
Waterproof rubber seal, penetrating from block side wall to opposite side wall
Back end end blower with a hanging hole
It is a check.

The hanging bracket is provided with a horizontal bar, a vertical bar, and a steel support bar extending in the same direction as the horizontal bar from the lower end thereof in a U-shape, and projects downward on a support plate opposite to the support bar. A fixing pin is inserted, and a plurality of mounting holes for hanging wire fixing devices are provided in the horizontal bar over the length of the horizontal bar. Soshi
Lever hanging bracket is for lower half supporting rod insertion of upper half
Eccentrically protrudes in the direction opposite to the direction of the suspension holes.
Used for blocks having upwardly engaging ridges at the ends
It is.

[0009] The tension block is constructed by suspending the tension block at a predetermined position on a gentle slope which has been subjected to a foundation work and backing by a conventional method, using a hanging metal fitting, and moving the downward engaging portion of the tension block to a predetermined position. The two blocks are integrated by engaging with the upward engaging portion of the tension block installed at the bottom, and the mortar is inserted into the connecting hole of the downward engaging concave groove into which the connecting reinforcing bar erected on the upward engaging ridge is inserted. After filling and fixing, the engaging portions of the plurality of tension blocks are sequentially engaged to integrate all the tension blocks to complete the laying .

[0010]

In the tension block according to the present invention, the front side engaging portion comprises an upward engaging concave groove and an engaging ridge, and the rear side engaging portion comprises a downward engaging concave groove and an engaging ridge. so tension block each other while ensuring the integrity of engagement is body intricately even rows to columns, standing upward engaging projections
For connecting rebars to be inserted into the connecting recesses and the downwardly engaging grooves.
Tightened block that is engaged because it is connected with the connection hole
Prevention of lateral misalignment has been greatly improved by connecting rebar.
The bonding strength is extremely strong. Furthermore , in addition to the very complicated structure by the engagement between the tension block bodies, the water-blocking structure with the waterproof rubber seal arranged in the upward engaging concave groove in the joint surface has a high suction prevention ability, and By arranging the filter material on the back side of the hole, suction of the backfill material can be prevented, and just like the conventional tension block construction, only the foundation work, the top end work, backfilling, just laying on the slope It can be constructed and is suitable for upholstery blocks for low-water revetment with a gentle slope of about 1: 1.0 or less.

Table 1 shows the differences between the features of the tension block of the present invention and the existing block.

[0012]

[Table 1]

The lower half of the block has an upper half.
Deflected in the direction opposite to the direction of the suspension hole for inserting the body support rod
Book having an upwardly engaging ridge at its protruding end.
Exclusive lifting hardware for lifting the tension block of the invention
It is. For this reason, the hanging bracket is perpendicular to the support rod in the opposite direction.
It has a support plate protruding from the bar, and this support plate projects downward.
The fixing pin which comes out is attached. Therefore, the suspension
When the support rod of the tool is suspended by inserting it into the block of the present invention
The lower surface of the support plate that projects in the opposite direction from the support rod
Upward on one end of the lower half of the lock
Contacting the upper surface of the engaging ridge, and
Apply a pushing force directly to the horizontal block of the suspended block.
It works to take a sense. Further, the fixing pin is inserted into the upward engaging groove of the tension block, and the inner surface of the upward engaging ridge is formed.
The support rod comes back in contact with and falls off the block
To prevent that. Further, by selecting the position of the fixing fixture mounting hole extending over the horizontal bar length of the hanging metal, the hanging angle can be adjusted according to the slope of the slope.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The upholstery block of the present invention has a thickness of 35 cm for low water revetment.
A large concrete block with a surface of m × 0.75 m (1.125 m ² ).

The rectangular block 1 shown in FIGS. 1 and 11
A rectangular surface having a surface decoration 12 and an upwardly engaging groove 9 extending diagonally upward and to the right of the rectangular surface.
And a front-side engaging portion formed of an external engaging ridge 10. As shown in FIG. 11B, the front side engaging portion is recessed one step from the rectangular surface, and the length of the front side engaging portion is the same as the length of the rectangular surface. As shown in FIG. 11B, the back side of the rectangular block 1 has the same symmetrical shape as the front side with the center of the block being point-symmetrical, and the back side of the front side engaging portion is a rectangular back side. The back side of the rectangular front surface is a back side engaging portion composed of a downward engaging concave groove 9 projecting from the rectangular rear surface in a diagonal direction of the lower left and projecting outward from the concave concave groove 9. Adjacent blocks are engaged with each other by engaging ridges in the engaging recesses to ensure meshing engagement. The interlocking block is formed to have a thickness of 35 cm, which is a conservative dimension.

A waterproof rubber seal 11 is provided in the upward engaging groove over the entire length. A plurality of connecting reinforcing bars 6 are erected on the upper engaging ridge 10 on the front side engaging portion, and are erected on the rectangular block adjacent to the lower engaging concave groove 9 on the back side engaging portion. A connecting hole 7 into which a connecting reinforcing bar 6 is inserted and a small amount of mortar is filled and fixed is opened. Suspension holes 5 penetrate the long side walls of the rectangular surface, and drain holes 8 are pierced from the rectangular surface to the rectangular back surface, and the drain holes 8 penetrate into the back surface of the opening of the drain hole 8 on the rectangular back surface. Filter material is arranged to prevent the material from being sucked out.

The square block 2 shown in FIGS. 2 and 12
Has a square surface shape having a surface makeup 12 is a square,
The length of one side is the same as the length of the short side of the rectangular block 1. That is, there are two square blocks and one rectangular block.
Corresponds to the individual. Rectangular block 1 for square block 2
Similarly to the above, a front side engaging portion comprising an upward engaging concave groove 9 and an upward engaging convex line 10 having a connecting rebar standing upright, and a downward engaging concave groove 9 formed with a connecting hole and an engaging convex. A back side engaging portion formed of the ridge 10 is formed, and a hanging hole 5 is penetrated through a side wall of the square surface. The square block 2 replenishes an empty space at the end of the column of the rectangular block 1 laid out by shifting one square block in a column.

The front end block 3 shown in FIG. 3 and FIG. 13 is used for the end of the laying block, and engages with the upwardly engaging groove 9 of the front side engaging portion of the rectangular block 1. The downwardly engaging groove 9 engaging with the ridge 10 and the engaging ridge 10
On the back surface, the front surface side is formed in a narrow surface makeup 12, an end surface 25 is connected to the surface makeup 12, and the foot is a back projection of 35 cm of a reserve dimension. A connection hole 7 is opened in the downward engaging concave groove 9, and a suspension hole 5 is penetrated through a foot on the end surface 25.

The back end block 4 shown in FIGS. 4 and 14 is also used at the end of the laid block.
It is laid first among the seed blocks. The back side end block 4 has a front side engaging portion from the upward engaging concave groove 9 and the engaging ridge 10, and is engaged with and integrated with the rear side engaging portion of the rectangular block 1. A waterproof rubber seal 11 is placed in the upwardly engaging groove 9. The connecting reinforcing bar 6 is provided upright on the upward engaging ridge 10. A narrow end surface 25 is formed adjacent to the front side engaging portion, and a suspension hole 5 penetrates a side wall of the end surface 25. Lay the Zhang block in Figure 5
The following shows how the above four types of blocks are engaged with each other. The connecting holes 7 formed by moving the blocks in the direction of the arrow following the alternate long and short dash line and opening the downwardly engaging groove of each block.
The upward engaging ridge 6 of the mating block to be engaged is inserted.

FIG. 6 shows a hanging bracket 13 for lifting each block. The hanging bracket 13 is formed in a U-shape from a horizontal bar, a short bar downwardly extending at one end thereof, and a support bar 14 which is folded at a lower portion in a direction parallel to the horizontal bar, and a support plate is provided so as to project in a direction opposite to the support bar 14. The fixing pin 15 is inserted downward into the support plate. The distal end of the fixing pin 15 is inserted into the upward engaging groove 9 of the block so that the support rod 14 does not come off the hanging hole 5. A mounting hole 24 is formed in the horizontal bar in the length direction. The foot of the inverted U-shaped fixture 16 is inserted into the mounting hole 24 and fixed with the nut 18. By appropriately selecting the position of the mounting hole 24, the angle of inclination of the block in the suspended state can be arbitrarily set to match the angle of the slope. An inverted U-shaped hanging device 19 to which a wire 20 is connected is connected to the fixing device 16 with a bolt 17 and a nut 18.

FIG. 8 shows a rectangular block 1 on a gentle slope 21.
Is shown suspended by the wire 20 by the suspending fitting 13. The procedure for laying the tension block on the gentle slope will be described. First of all, the foundation work and backfilling are carried out as before,
Next, the back side end block 4 is hung by the hanger 13 and is laid at a predetermined position at the bottom of the slope. When finished laying all the back-side end blocks 4, a rectangular block 1 with lifting lugs 13 suspended as shown in Figure 8, a rectangular upward of the engaging portion of the rear end blocks 4 which is laid above the block 1
Is placed from above, and the connecting reinforcing bar 6 erected on the upwardly engaging ridge 10 is inserted into and engaged with the connecting hole 7 of the mating block. Mortar is filled and fixed in the connection hole 7 into which the connection reinforcing bar 6 is inserted. The laying of one horizontal row is completed by making the long sides of the rectangular block 1 follow the horizontal direction of the slope. A waterproof rubber seal is provided in the upward engaging groove of the engagement portion of each block. In this way, the front side engaging portion of the rectangular block 1 previously laid is engaged with the back side engaging portion of the rectangular block 1 to be laid next, and the short side wall of the rectangular block 1 is sequentially formed. When the laying of a row is completed while abutting each other,
Continue laying . Each time the row changes, the rectangular blocks are laid out by shifting half a block in the horizontal direction. Therefore, when a portion that is short by half of the row ends is generated, the square block 2 is replenished and laid in that portion. Thus, all laying is completed using the front end block 3 at the last end.

FIG. 9 is a sectional view of the tension block laid on the gentle slope, and FIG. 10 is a top view of the tension block. The engagement portion of each block is provided with a waterproof rubber seal 11 in an upwardly engaging groove 9, and a downwardly engaging ridge 10 is fitted thereon and engaged therewith, thereby forming a downwardly engaging groove. The connecting hole 7 opened in 9 is fixed and integrated with a mortar filling 22 with the connecting rebar inserted. A drain hole 8 penetrates from the front surface to the back surface of the rectangular block 1,
A filter material 23 is disposed on the back surface of the drain hole 8 on the back surface side.

[0023]

According to the tension block of the present invention, the blocks have an interlocking structure in which the blocks are intricately arranged in rows and columns, and the integrity can be ensured .
The lateral displacement between the tension blocks has also been greatly improved. And the put that through the rebar in the traditional tension block unnecessary, because the small irregularities piecing no, durability, good reliability, requires less because the construction process is also no need for grout work. In addition, a very intricate joint surface is formed by the interlocking structure between the block bodies, which has a high suction-prevention ability.Since it is a water-blocking structure with a waterproof rubber seal, it can be backed up simply by placing a filter material on the back side of the drain hole The material can be prevented from being sucked out.

The construction of the upholstery block of the present invention is substantially as follows:
Suitable for low-water revetment with a gentle slope of 1.0 or less. Just like the conventional upholstery block works, foundation work, top end work, backfilling, and just laying out the upholstery blocks. Can be constructed in a short time. Also, in the opposite direction to the support rod
The suspended block has a stable mounting because it uses a support plate that has an extended support plate and fixing pins attached to the support plate.
It can be suspended, it is extremely safe without falling off, and the lifting angle can be adjusted according to the angle of the slope.

As described above, the tension block and the tension block of the present invention
The use of the hanging bracket enables quick, safe, and reliable construction with almost no need for materials other than the block, and provides an extremely excellent effect not found in the conventional tension block.

[Brief description of the drawings]

FIG. 1 is a perspective view of a rectangular block.

FIG. 2 is a perspective view of a square block.

FIG. 3 is a perspective view of a front end block.

FIG. 4 is a perspective view of a back side end block.

FIG. 5 is a diagram schematically showing an engagement state of various blocks.

FIG. 6 is an explanatory view of a hanging bracket.

FIG. 7 is a diagram showing a use state of the hanging fitting.

FIG. 8 is a diagram showing a state in which a tension block is laid on a slope by a hanging metal fitting.

FIG. 9 is an explanatory sectional view of a slope on which a tension block is laid.

FIG. 10 is an explanatory top view of a slope on which a tension block is laid.

11A is a plan view, FIG. 11B is a front view, and FIG. 11C is a side view of the rectangular block.

12A is a plan view, FIG. 12B is a front view, and FIG. 12C is a side view of the square block.

FIG. 13A is a plan view of the front end block;
(B) is a front view, (c) is a side view.

FIG. 14A is a plan view of a back side end block,
(B) is a front view, (c) is a side view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rectangular block 2 Square block 3 Front end block 4 Back end block 5 Hanging hole 6 Connecting reinforcing bar 7 Connecting hole 8 Drainage hole 9 Engagement groove 10 Engagement ridge 11 Waterproof rubber seal 12 Surface makeup 13 Hanging fitting 14 Support Rod 15 Fixing Pin 16 Fixture 17 Bolt 18 Nut 19 Inverted U-Shaped Hanging Tool 20 Wire 21 Slow Slope 22 Mortar Filling 23 Filter Material 24 Fixing Fixing Hole 25 End Surface

Continuation of front page (56) References JP-A-1-137016 (JP, A) Jikken 35-25556 (JP, Y1) (58) Fields investigated (Int. Cl. ⁶ , DB name) E02B 3 / 14 301 E02D 17/20 103 E02D 29/02 302

Claims (5)

(57) [Claims] 1. An upper half and a lower half of a block having a square surface and a rectangular back surface which are a square or a rectangle having twice the area thereof are engaged with engaging grooves which are displaced diagonally and face up and down. In the rectangular tension block consisting of the engaging portion of the ridge, the front surface side comprising the upwardly engaging portion and the rectangular surface, and the rear surface side comprising the rectangular rear surface of the downwardly engaging portion, the upward engagement is performed.
Provided in the connecting rebar standing on the ridge and the downward engaging groove
Arranged in the connecting hole for inserting the connecting reinforcing bar and the upward engaging groove.
Waterproof rubber seal and penetrate from the block side wall to the opposite side wall.
An upholstery block having a hanging hole through which it passes . 2. A downwardly engaging portion comprising a downwardly engaging concave groove and an engaging ridge which downwardly engage with an upwardly engaging portion of a rectangular tension block, and a rear surface of the downwardly engaging portion and an adjacent narrow rectangular shape. In the front end block composed of the end surface and the back-side ridge having a height smaller than the end surface , downward engagement is performed.
Connection hole for insertion of connection reinforcing bar provided in the groove, and block side wall
And a suspension hole penetrating the opposing side wall from
To the front end block . 3. An upwardly engaging portion comprising an upwardly engaging concave groove and an upwardly engaging ridge which meshes upwardly with a downwardly engaging portion of the rectangular tension block, a back surface of the upwardly engaging portion and an adjacent narrow rectangle. In the back surface side end block consisting of a front surface ridge having a height of a notch from the back surface of the end ,
Arranged in the connecting rebar standing on the joint ridge and the upward engaging groove
Water seal rubber seal and block side wall to opposite side wall
Back end having penetrating suspension holes
Block . 4. A horizontal bar and a vertical bar having a plurality of hanging wire fixing holes in a longitudinal direction thereof, a steel support bar horizontally folded from a lower end thereof, and a support plate projecting downward from the support bar to a support plate facing in the opposite direction. Characterized by a fixed pin
Side half opposite to upper half supporting rod insertion hole
Hanging bracket for blocks that protrude in one direction . 5. A block having an engaging portion according to any one of claims 1 to 3 , which is lifted at a predetermined position on a gentle slope face which has been previously backed and filled with a foundation, and which is lifted downward. The process of engaging the engaging portion with the upward engaging portion of the existing block and filling and fixing mortar in the connecting hole of the downward engaging concave groove in which the connecting reinforcing bar is inserted is repeated in the adjacent direction, and all the blocks are engaged. A method of constructing a sloping block on a slope that is integrated and laid .