JP2003041647A - Block and construction method for side ditch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To save space during storage, facilitate assembly, make the execution of work efficient, and stably maintain a buried block, in terms of a side ditch in a position wherein grounds 61 and 61a are different in level from each other. SOLUTION: The block 50 for the side ditch 60 is constituted in such a manner that a leg frame block 47 is coupled, by a joining plate 40, to a main body block 25 wherein side plates 1 and 1 forming a liquid passage are coupled together by a top plate 10. In the block 25, a through-hole 17 is drilled in a thick part of the top plate 10, and a long bolt 57 is inserted for sealing into the through-hole 17 so as to couple the adjacent blocks 25 together. The frame- shaped block 47, which has an opening 34, is composed of a coupling piece 28 which is provided with the joining plate 40, a supporting piece 29, a partition piece 31 and the like. A communicating groove 36 of the supporting piece 29 and a communicating hole 37 of the partition piece 31 serve as holes for locking of a rope 54 during hanging and drainage from the opening 34. The block 50 is placed on base concrete 52, and the inside of the opening 34 and the outside of the side plate 1 are backfilled, so that the side ditch 60 can be constructed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gutter block and a method of forming a gutter using the gutter block.

[0002]

2. Description of the Related Art When constructing a gutter at the boundary 72 of a stepped land with different heights, on a concrete foundation 52,
An L-shaped retaining wall 71 was erected on the high side of the land, and a U-shaped block 62 was constructed along the L-shaped retaining wall 71 (Fig. 10).
For example, it is a structure of a gutter applied when the high side of the land is the ground 61 that serves as a road and the low side is the undeveloped field ground 61a.

In such a case, when it is used as a road up to the boundary 72 on a stepped land, a recessed groove is dug to form a basic concrete 52 at the bottom, and side plates 63 and 63 for forming a flow path of the gutter are provided. , Various blocks 62 with an inverted U-shaped cross section
Various devices have been proposed to prevent the flow of the block 62 while arranging the columns in a row and using the upper surface of the block as a road (FIG. 7).

In the first conventional example, in order to prevent the block 62 from moving, a deformed reinforcing bar 65 is passed through a through hole 64 provided in the block, and concrete 66 is struck on the outside of the block 62 so that the deformed reinforcing bar 65 is embedded. Invert concrete 66a for adjusting the gradient was placed at the bottom of the flow path, and the deformed bar 65 was embedded in the concrete 66, 66a (FIG. 7 (a)).

Further, in the second conventional example, the side plates 63, 63 are provided.
In order to prevent the movement of the block 62 having the above-mentioned structure, a structure in which an L-shaped protruding heel plate 67 is formed has been proposed (actual open flat 2-50484). In this case, the bottom of the groove is leveled with mortar or the like, and a block 62 is attached on the leveled side plate 63,
Invert concrete 66a for gradient adjustment was placed between 63 (FIG. 7 (b)).

The third conventional example is a block having a structure in which a main body block 62a having a side plate 63 and an extension block 62b are connected by a connecting fitting 69 (Japanese Patent Laid-Open No. 8-2.
70060). In this case, the adjacent main body block 62a
Were connected by an outer connecting plate 70 (see FIG. 7).
(C)).

[0007]

In the first conventional example, since the mold is assembled on site, concrete is placed and the bottom plate is assembled, the mold assembly time and the curing period until the concrete solidifies. However, there was a problem that the construction period was long. Further, when constructing the bottom plate, it is necessary to secure the cover thickness of the deformed reinforcing bar to be buried, so that there is a problem that the invert concrete 66a for adjusting the gradient and the concrete 66 become thick.

In the second conventional example, there is a problem that the block manufacturing mold becomes large and complicated and the manufacturing becomes complicated. Further, when the square bar 53 is put in and suspended, the side plate 6
If it is supported in the middle of 2, 62, the center of gravity G shifts (see FIG. 9).
(A)) Further, although it is possible to dispose the square members 53 according to the center of gravity G (Fig. 9 (b)), it was difficult to grasp the center of gravity G at the hanging site. In addition, when stacking and storing, the space for arrangement is taken and the protruding heel plate 67 is used.
There was a risk of breaking (Fig. 8 (b)).

Further, in the third conventional example, the adhesion to the basic concrete 52 is likely to be insufficient, and since the connecting fitting 69 and the connecting plate 70 are exposed on the surface of the block 62, they are easily corroded and the block 62 There is a problem that the main body block 62a and the extension block 62b may be disconnected from each other.

[0010]

However, in the present invention, since the gutter block is constructed and the gutter is constructed by using the main body block having the side plate and the leg frame block having the opening, the above-mentioned problems are caused. Solved.

That is, the invention of the block comprises a main body block having side plates arranged at a predetermined gap to form a flow path, and a leg frame block which can be fixed to the outside of the lower end of one side plate of the main body block. The partial frame block is a gutter block in which a frame-shaped opening which communicates with the upper and lower sides is formed.

Further, in the above, the main body block is constructed by mounting top plates on the upper surfaces of the side plates arranged in parallel and integrally connecting them, and the top plates are formed at both ends of the side grooves in the flow direction, respectively. The gutter block is characterized in that a through hole is formed in the thickness of the upper surface plate in the flow direction of the gutter so as to insert a steel rod when joining the adjacent gutter block.
In addition, the leg frame block has a notch for forming a fixing means to the side plate of the main body block on one side of the frame base of a rectangular frame in a plan view, and an anti-corrosion means filling on the one side upper surface of the frame base. A gutter block having grooves formed therein. Also,
The gutter block is characterized in that a communication groove and / or a communication hole that communicates the opening and the outside is formed on the lower surface of the leg frame block on the other side of the frame base.

Further, in the invention of the construction method, (1) the groove recess is dug at the planned installation position and the bottom surface of the groove recess is leveled. (2) On the leveled bottom surface, place the main body block with side plates in parallel. (3) A frame-shaped leg frame block placed on the leveled bottom surface is fixed to the outer surface of the side plate. (4) The filler packed in the opening of the leg frame block reaches the leveled bottom surface. (5) An embedded object is placed on the leg frame block, and the outside of the side plate is backfilled in the groove recess. A method for constructing a side groove is characterized by forming the side groove as described above. Further, in the above, the method for constructing a side groove is characterized in that a reinforcing bar is projected on the bottom surface of the groove recess to face the inside of the opening of the leg frame block.

The above-mentioned filling material for the opening means soil, crushed stone, concrete or the like. In the case of soil, it is also possible to use the earth and sand produced when excavating the groove recess.
Also, a combination of a plurality of these types can be used. The buried object described above also has the same structure as the filler.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION In the present invention, a main body block 2 in which side plates 1 and 1 forming a liquid passage are connected by top plates 10 and 10.
5 and a frame-shaped leg frame block 47 that can be connected to the outside of the lower end of the side plate 1 of the main body block 25.
0 (FIG. 1 (c), FIG. 5 (c), FIG. 6).

An opening 9 is formed between the top plates 10 and 10 of the main body block 25, and a through hole 17 is formed in the wall thickness of the top plate 10 in the flow direction of the liquid passage to form an inner surface of the top plate. An expanded housing portion 18 is formed in the opening facing 12 (FIG. 4). When connecting the main body blocks 25 in the longitudinal direction, the through holes 17, 17 of the adjacent top plate 10 are communicated with each other, a long bolt 57 is passed through the communication hole, and tightly screwed with a nut (FIG. 1).
(B)).

The leg frame block 47 includes a connecting piece 28 provided with a connecting plate 40 with a connecting hole 43 for connecting to the main body block 25, a supporting piece 29 facing the connecting piece, and a connecting piece 28.
And the support piece 29, the partition pieces 31, 31, the intermediate piece 3
2 and 32. Each piece 28, 29, 31, 3
The portions surrounded by 2 form openings 34, 34 that vertically escape. A communication groove 36 that communicates the inside and the outside of the opening 34 is formed on the lower surface of the support piece 29, and a communication hole 37 that communicates the inside and the outside of the opening 34 is formed in the partition. Communication groove 3
6. The communication hole 37 is used as a portion for locking the rope 54 when suspended (FIGS. 5B and 5C), and when buried,
It can be used as a drainage hole for the filler in the opening 34 (FIGS. 3A and 3B).

[0018]

Embodiment 1 An embodiment of a gutter block of the present invention will be described with reference to the drawings.

(1) Structure of the main body block 25

Two side plates 1 and 1 having a predetermined length L are arranged at a predetermined distance D, and the top plate is provided on the upper surfaces of the side plates 1 and 1 at both end portions 4 and 4 in the length direction (the groove flow direction). 10 and 10 are erected in series. An opening 9 is formed on the upper surface of the middle portion of the side plates 1 and 1 in the longitudinal direction, in which the top plate 10 is not installed.

A joint recess 14 is formed at the center of the outer surface 11 of the top plates 10 and 10, and a recess 15 for operating the cover plate is formed at the center of the inner surface. In addition, from the upper end of the outer surface of the top plate 10 to the end surface of the side plate 1, in the vertical direction,
A joint recess 16 is formed, and the recess 16 has a large width on the top plate side.

Within the wall thickness of the top plate 10, through holes 17, 17 for inserting connecting bolts are provided in parallel in the longitudinal direction (from the outer side surface 11 to the inner side surface 12). Has been done. An accommodation portion 18 for a nut (head of a bolt) is formed so as to surround the through hole 17 on the inner surface of the top plate.

Between the top plates 10 and 10, opening edges 19 and 19 are formed on the outer peripheral side near the upper surfaces of the side plates 1 and 1 so as to connect the top plates 10 and 10. Further, a step portion 20 for locking the lid is formed between the opening edge 19 and the upper surface of the side plate 1, and tapered notches 21 and 21 are formed in the step portion 20.
To form.

The side plate 1 is formed with a thick portion 8 having a large thickness toward the outside of the upper portion, and a tapered portion 8a is formed between the inner surface of the upper end of the side plate 1 and the lower surface of the top plate 10. .

On the outer surface 2 of the side plate 1, screw holes (anchors) 23, 23 for fixing the leg frame block 47 are formed.

The body block 25 is formed by integrally molding the above-mentioned shape with a cement material (FIG. 4).

(2) Structure of leg frame block 47

The frame base 27, which can be fixed to the outer surface 2 of the side plate 1 of the main body block 25, is formed by connecting two intermediate pieces 31, 31 in series in a plane rectangular frame having a long side L ₂ and a short side L _3. .
The long side of the frame base 27 is used to connect the portion fixed to the side plate 1 to the connecting piece 2
8 and the opposing sides of the connecting piece 28 are the supporting pieces 29.
The support piece 29 has projecting pieces 30, 3 whose both ends extend in the longitudinal direction.
The length L ₁ of the support piece 29 that forms 0 and includes the protruding pieces 30 and 30 is the same as or slightly shorter than the length L of the side plate 1 (FIG. 2C).

The short side of the rectangular frame of the frame base 27 is divided into pieces 3
1 and 31, a connecting piece 28, a supporting piece 29, a partition 31,
31, the part surrounded by the intermediate pieces 32, 32 is the opening 3
4 and 34 are formed (FIG. 2C).

On the lower surface of the support piece 29, communication grooves 36, 36 having a semicircular cross section are formed to connect the outside of the support piece 29 and the central portion of each opening 34. In addition, the partitions 31, 31
Then, a circular communication hole 37 that communicates the outside of the partition 31 with the center of the opening 34 is formed.

Further, on the upper surface of the connecting piece 28, joint cutouts 38 that communicate the outside with the central portion of each opening 34 are formed. The joint notch 38 is formed in a tapered shape with a narrower bottom. A vertical piece 41 of a joining plate (steel plate) 40 having a joining hole 43 formed therein faces the outer surface of the joining notch 38, and the joining plate 40
The horizontal piece 42 is embedded in the connecting piece 28. Joining cutout 38
The opening 34 side of the is the housing portion 3 for the nut (bolt head).
9 is formed (FIG. 3A).

The positions of the screw holes 23, 23 of the main body block 25 are formed so as to match the positions of the joint holes 43 of the joint plate 40.

Further, a notch groove 45 for joint is formed on the ridgeline between the upper surface and the outer surface of the connecting piece 28 over the entire length in the length direction.

The outer surface of the connecting piece 28 (the surface that contacts the side plate 1) and the outer surface of the supporting piece 29 are vertical (see FIG. 3).
(A)), the other surface is formed in a taper shape that widens downward (FIGS. 3 (a) and 3 (b)).

The leg frame block 47 having the above-described shape and structure is integrally molded with a cement material (FIGS. 1A to 1C).

(3) Configuration of gutter block 50

The outer surface 2 of the side plate 1 of the main body block 25 is brought into contact with the outer surface of the connecting piece 28 of the leg frame block 47, so that the screw holes 23 and 23 of the main body block 25 and the leg frame block 47.
Of the gutter block of the present invention by connecting the main body block 25 and the leg frame block 47 by connecting the bolts from the joint hole 43 to the screw hole 23. 50 is configured (FIG. 1C and FIG. 5C). In this state, the lower surface of the main body block 25 (the lower surface of the side plate 1) and the lower surface of the leg frame block 47 are flush with each other.

(4) Other embodiments

In the above embodiment, the leg frame block 47.
Since the protruding pieces 30, 30 are provided on the leg frame block 47,
When the projecting pieces are arranged side by side, the adjacent projecting pieces face each other, and the opening 55 can be formed in the gap between the leg frame blocks 47, 47.
Close contact with the base concrete 52, but the projection piece 3
0 and 30 can be omitted (not shown).

[0040]

Second Embodiment Next, the gutter block 50 of the first embodiment.
Will be described, that is, a method of constructing the gutter 60 of the present invention.

(1) The ground 61 is dug at the planned construction position of the gutter, the groove recess 51 is formed, and the foundation concrete 52 is placed on the bottom 51a of the groove recess 51 (FIGS. 1 (a) and 6). .

(2) The main body blocks 25, 25 are placed on the basic concrete 52 and are arranged in the lengthwise direction. At this time, when suspending the main body block 25, both top plates 1
The hanging timbers 53 are inserted on the lower surfaces of 0 and 10, and the ropes 54, 54 are hung on the timbers 53 facing the opening 9 (see FIG. 5).
(A)) After the installation at a predetermined position on the foundation concrete 52, the timber 53 is removed together with the rope 54. Also,
In another method, a self-propelled jackie is arranged below the tops 10 and 10, the main body block 25 is lifted by the jack, and the self-propelled jack is moved on the foundation concrete 52 to a predetermined position. The main body block 25 is lowered and the jack is retracted (not shown).

Adjacent main body blocks 25, 25 have a common long shaft bolt 57 inserted in the through holes 17, 17 (FIG. 1 (b)), and the housing portion 1 of one main body block 25.
8 accommodates the head of the bolt 57, and the other main body block 2
A nut is screwed and tightly connected to the tip of the bolt 57 protruding into the accommodation portion 18 of No. 5.

By thus joining and caulking the accommodating portion 18, the bolts 57 and nuts are not exposed and there is no risk of rusting.

(3) The leg frame block 47 is placed on the foundation concrete 52, and the outer surface 2 of the side plate 1 of the main body block 25 is placed.
Then, the outer surface of the connecting piece 28 of the leg frame block 47 is brought into contact. Screw holes 23 of body block 25 and leg frame block 4
7, the bolts 48 and 48 are screwed and tightly connected from the joint hole 43 to the screw hole 23 to join the main body block 25 and the leg frame block 47.

At this time, when suspending the leg frame block 47, the metal fitting 54a at the lower end of the ropes 54, 54 is inserted and locked in the communication hole 37, and the metal fitting 54a at the lower end of the other rope 54 is connected. It can be lifted with good balance by being locked in the groove 36 and supported at 3 to 4 points (Fig. 5 (b)).

At this time, the adjacent leg frame blocks 47, 4
7, the protruding pieces 30, 30 are arranged such that the edges thereof face each other. Therefore, an opening 55 similar to the opening 34 is formed by the projecting pieces 30, 30 and the partition pieces 31, 31 of the both leg frame blocks 47.

In addition, at this time, after the leg frame block 47 is installed in advance, the lower portions of the reinforcing bars (short reinforcing bars) 56, 56 are fixed in the basic concrete 52.
It is also possible to expose the upper part of the inside of the openings 34, 34 (FIG. 1 (c)). In this case, when the opening 54 is filled with concrete, the leg frame block 47 and the basic concrete 52 can be firmly joined.

(4) Subsequently, the recesses 16 and 16 of the main body block 25 and the joint cutouts 36 and 3 of the leg frame block 47.
6. Fill the notch groove 45 with mortar. The mortar protects the metallic members such as the joint plate 40 and the bolts 48 from corrosion (FIG. 1 (d)). Instead of the mortar, another rust preventive material can be filled.

(5) Subsequently, the openings 34, 34, 55 are filled with crushed stone, soil generated at the site, and the like. in this case,
Even if the soil or the like filled in the opening 34 contains water, excess water from the communicating groove 36 and the connecting hole 37 is removed from the opening 5.
4, the gutter block 50 is held stably. Further, at the lower end portion between the side plates 1 of the main body block 25, the invert concrete 58 forming the bottom of the flow path is placed on the basic concrete 52. (6) Subsequently, in the groove recess 51, the excavated earth and sand is buried in the outer side 2 of the side plate 1 (including the upper surface of the leg frame concrete), and the lid 59 is fitted in the opening of the main body block 25 ( 4), the gutter 60 is constructed (FIG. 6).

(7) Other embodiments

In the above embodiment, the openings 34 and 55 were filled with crushed stone or soil generated at the site, but instead of these, concrete, mortar or the like may be filled. In this case, the joint notch 3 of the leg frame block 47
8. The filling of the mortar into the notch groove 45 can be performed simultaneously with the filling of the concrete into the opening 34.

In the above embodiment, the gutter block 50 carries the main body block 25 and the leg frame block 47 separately and joins them on the foundation concrete 52. It is also possible to lift and place it on the foundation concrete in a state of being joined with 47. In this case, the leg frame block 47
If the metal fittings 54 of the rope 54 are locked in the communication grooves 36, 36, and the position of the square bar 53 arranged on the lower surface of the top plate 10 of the main body block 25 is adjusted according to the center of gravity of the gutter block, it will be easy. Can be hung stably (Fig. 5
(C)).

Further, in the above embodiment, the main body blocks 25, 25 and the leg frame blocks 47, 47 constituting the gutter block 50 may be stacked and stored in advance at the construction site (FIG. 8 (a)). ). In this case, since the main body blocks 25, 25 and the leg frame blocks 47, 47 are stacked, the storage space can be reduced and there is no risk of damaging the blocks 25, 47 during storage.
Further, since the leg frame blocks 47, 47 are frame-shaped, they can be stably stacked vertically.

[0055]

According to the present invention, a main body block having a side plate and a leg frame block having an opening are combined,
Since the gutter block is configured, there is an effect that the mold can be downsized with a simple shape, and the gutter block can be easily manufactured. Further, in the construction, space saving can be achieved by storage, and since it is lightweight, it can be easily transported, and there is an effect that the workability as a whole can be improved. Further, if the opening is filled with soil or crushed stone excavated at the site, concrete, or the like, the adhesion between the basic concrete and the leg frame concrete is enhanced, and the gutter block can be stably held.

Further, according to the present invention, since the through holes are provided in the wall thickness of the top plate installed on both ends, the through holes can be used to join the adjacent main body blocks and the bolts to be inserted can be inserted. According to the strength, the bolts can be firmly joined and the bolts are housed in the through holes, so that the bolts can be protected from corrosion and the strong joint can be maintained for a long time.

Further, since the notch groove is formed at the joining end of the leg frame block with the main body block, mortar or rust preventive material can be filled in the notch groove, and the main body block and the leg frame block can be connected. The effect of being able to protect the joining hardware of and maintaining the joining of both blocks for a long time.

Further, since the communication groove and / or the communication hole for connecting the opening and the outside are formed in the frame base of the leg frame block, the rope can be easily used by using the communication groove and / or the communication hole. Since it can be locked, the leg frame block or the gutter block can be stably hung, so that there is an effect that the transportation can be performed safely and that the construction efficiency can be improved. Furthermore, even when the opening is filled with soil, crushed stone, or the like that has been excavated at the site, moisture can escape through the opening, and the effect of increasing the bonding between the basic concrete and the leg frame block is obtained. If soil excavated at the site can be used for backfilling the opening, it can be constructed at a lower cost than concrete.

[Brief description of drawings]

1A to 1E are perspective views illustrating a method of constructing a side groove according to an embodiment of the present invention.

FIG. 2 is a leg frame block used in an embodiment of the present invention, (a) is a front view, (b) is a rear view, and (c) is a plan view.

3A is a sectional view taken along line AA of FIG.
(B) is a sectional view taken along line BB.

FIG. 4 is a perspective view of a main body block used for implementing the present invention.

5 (a) to 5 (c) are perspective views illustrating suspension of the gutter block.

FIG. 6 is a schematic vertical sectional view of a gutter constructed by the method of the present invention.

7A to 7C are longitudinal sectional views or side views of a conventional example.

8A is a diagram for explaining stacking of gutter blocks of the present invention, and FIG. 8B is a diagram for explaining stacking of blocks of a conventional example.

9A and 9B are diagrams illustrating suspension of a block according to a conventional example.

FIG. 10 is a vertical cross-sectional view of a side groove using a block of a conventional example.

[Explanation of symbols]

1 side plate 2 Outer surface of side plate 3 Inner surface of side plate 4 Side plate end 5 End face of side plate 7 Bottom surface of side plate 8 Thick part of the side plate 9 openings 10 Top plate 11 Outer surface of the top plate 12 Inside surface of the top plate 14 Recessed part of the top plate (outer surface) 15 Top plate recessed part (inside surface) 16 Recessed part of the top plate 17 Top plate through hole 18 Top plate storage 19 opening edge 20 step 23 screw holes 25 body block 27 frame base 28 Connecting piece 29 Support pieces 30 protruding piece 31 Partition 32 Intermediate section 34 opening 36 communication groove 37 communication hole 38 joint notch 39 accommodation 40 joining plate 43 Bonding hole (bonding plate) 45 Notch groove 47 leg frame block 48 volts 50 gutter block 51 Gutter recess 51a Bottom of recess for gutter 52 Foundation concrete 55 opening 57 volts 58 Invert Block 59 Lid 60 gutter 61 ground 62 blocks (conventional example) 63 block side plate (conventional example) 66 Concrete (conventional example) 66a Invert concrete (conventional example) 67 Protruding heel plate (conventional example) 68 Mortar (conventional example) 69 Connecting bracket (conventional example) 70 Connection plate (conventional example) 71 L type retaining wall (conventional example)

Claims (6)

[Claims] 1. A main body block having side plates arranged with a predetermined gap to form a flow path, and a leg frame block that can be fixed to the outside of the lower end of one side plate of the main body block. A gutter block characterized in that a frame-shaped opening which communicates vertically is formed. 2. The main body block is constructed by mounting a top plate on the upper surfaces of juxtaposed side plates and integrally connecting the top plates, and the top plates are formed at both ends of the side groove in the flow direction, respectively. 2. The gutter block according to claim 1, further comprising a through hole for inserting a steel rod when joining with an adjacent gutter block in a thickness direction of the gutter in a flow direction of the gutter. 3. The leg frame block has fixing means for fixing it to a side plate of the main body block on one side of a frame body having a rectangular frame shape in plan view, and rust preventive means is filled on one side upper surface of the frame base body. The gutter block according to claim 1, wherein a notch groove is formed. 4. The gutter according to claim 3, wherein a communication groove and / or a communication hole that connects the opening and the outside is formed in the lower surface of the leg frame block on the other side of the frame base. block. 5. (1) The groove recess is dug at the planned installation position, and the bottom surface of the groove recess is leveled. (2) On the leveled bottom surface, place the main body block with side plates in parallel. (3) A frame-shaped leg frame block placed on the leveled bottom surface is fixed to the outer surface of the side plate. (4) The filler packed in the opening of the leg frame block reaches the leveled bottom surface. (5) An embedded object is placed on the leg frame block, and the outside of the side plate is backfilled in the groove recess. A method for constructing a gutter, comprising forming a gutter as described above. 6. The method for constructing a gutter according to claim 5, wherein a reinforcing bar is projected on the bottom surface of the groove recess so as to face the inside of the opening of the leg frame block.