JPH0632395A - Underground water reservoir - Google Patents

Abstract

PURPOSE:To facilitate handling of respective blocks and increase the workability, by vertically and horizontally arranging intermediate blocks, which are constituted of vertically stacked upper concrete blocks with an inverted U-shape and lower concrete blocks with a U-shape to construct an underground water reservoir. CONSTITUTION:An intermediate block A is constituted of vertically stacked inverted U-shaped upper concrete blocks 1 in which side walls 3, 3' and a top 4 are unified as a unit and U-shaped lower concrete blocks 1' in which the side walls 3, 3' and a bottom 5 are formed as a unit. An opening 8 is formed at both side walls 3, 3' of each block 1, 1'. The second upper and lower concrete blocks constituted likewise except that the opening 8 is not provided on one of side wall 3 are stacked vertically to constitute of the second intermediate block B. These intermediate blocks A, B are arranged vertically and horizontally every specified interval to construct an underground water reservoir by connection of the floor slab and the bottom slab vertically arranged between the intermediate blocks A, B.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete block in which a side wall and a top slab are integrally formed and a concrete block in which a side wall and a bottom slab are integrally formed, which are vertically connected.
The present invention relates to an underground reservoir structure in which concrete blocks formed integrally with each other are vertically connected to a floor slab block and horizontally and vertically to a bottom slab block.

[0002]

2. Description of the Related Art Conventionally known underground reservoir structures are
It was built by connecting box culverts. Since the box culvert is an integrated structure, the vertical dimension, that is, the width dimension, and the vertical dimension, that is, the height dimension of the large-capacity underground reservoir structure are restricted from the viewpoints of construction and transportation. It is disadvantageous, one construction unit is heavy, and construction must be done using heavy machinery. In addition to this, since the bottom slab needs to be joined by rebar, rebar assembly and cast-in-place concrete Work is required, which is uneconomical in terms of construction cost and has a drawback that the construction period is prolonged.

[0003]

DISCLOSURE OF THE INVENTION The problem underlying the present invention is to eliminate the drawbacks of the above-mentioned known underground retention basin structures, and to reduce the building width and building height and to reduce the weight. On the other hand, it is to provide an underground reservoir structure that is easy to handle during construction and does not require the use of heavy machinery.

[0004]

SUMMARY OF THE INVENTION According to the present invention, the above-mentioned problems are solved by vertically moving an upper concrete block integrally formed with a side wall and a top slab and a lower concrete block integrally formed with a side wall and a bottom slab, respectively. Connected horizontally as an intermediate block and vertically as an intermediate block, and an upper concrete block integrally formed with a side wall and a top slab and a lower concrete block integrally formed with a side wall and a bottom slab are respectively vertically connected. Then, the intermediate block is formed in the horizontal direction and the intermediate block is formed in the vertical direction, and the concrete block and the concrete block are connected by the floor slab and the bottom slab in the horizontal and vertical directions.

In the above structure of the retarding basin according to the present invention, the upper concrete block is provided with an opening at a lateral middle portion of a side wall, a sheath pipe for vertical connection, a notch portion and a lateral joining. Has a sheath tube and a joint on the side wall and top plate.

Further, in the structure of the retaining basin according to the present invention, the lower concrete block has an opening at an intermediate portion in the lateral direction, a connecting steel rod for vertical connection, and a plurality of side walls and a bottom slab for lateral joining. Of the bottom plate on the side wall side, and a flange steel plate used for horizontal and vertical joining is projected from one end of the bottom plate on the side wall side.

In addition, in the structure of the water reservoir according to the present invention, the upper concrete block has an opening at an intermediate portion in the lateral direction of the side wall, a sheath pipe, a notch portion and a lateral connection at the side wall for vertical connection. Has a sheath tube and joint on the side wall and top plate for.

Further, in the structure of the basin according to the present invention, the lower concrete block has an opening in the lateral middle portion of the side wall, a connecting steel rod for vertical connection, and a side wall and a bottom slab for lateral joining. A flange steel plate used for joining in the horizontal and vertical directions is provided to project from one end of the bottom slab on the side wall side.

As described above, in the reservoir structure according to the present invention, the upper concrete block and the lower concrete block are respectively assembled to form one unit of the underground reservoir structure. It is also possible for the lower concrete block to be used in the manner described above as a pre-joined upper concrete block and likewise as a integrally joined lower concrete block.

The present invention will now be described with reference to the embodiments illustrated in the accompanying drawings.

[0011]

EXAMPLE FIG. 1 shows an upper concrete block 1. This upper concrete block 1 is provided with one opening 8 in the middle portion in the lateral direction X on the side walls 3 and 3 '.
It is joined vertically with the lower concrete block 1'shown in FIG. In order to construct the upper concrete block 1 into the structural unit A of the reservoir structure, as described above, the upper concrete block 1 and the lower concrete block 1 '
After joining, the floor slab 6 shown in FIG. 5 is joined to this concrete block in the vertical direction Y. For this connection, the upper concrete block 1 has a large number of sheath tubes 30 and notches 9 on the side walls 3 and 3'and the top plate 4. The concrete blocks 1 and 1'are joined laterally, that is, in the X direction as a structural unit of the reservoir structure. For the purpose of this joining, a large number of sheath tubes 30 are attached to the side walls 3 and 3'and the top plate 4. And a joint 10 is provided.

The structure of the above lower concrete block 1'is shown in FIG. This lower concrete block 1'is provided with one opening 8 in the middle in the lateral direction X on the side walls 3, 3 '. A plurality of steel rods, for example, unbonded PC-steel rods 32 are provided on the side walls 3 and 3'for vertically joining the upper concrete block 1 and the lower concrete block 1 '. In order to join the joined upper concrete block 1 and lower concrete block 1'in the horizontal direction X and the vertical direction Y, a flange steel plate 11 protruding from one end of the bottom slab 5 on the side walls 3, 3'side is provided. . At this time, the side walls 3, 3'and the bottom slab 5 are joined for joining in the lateral direction X
In addition, a large number of sheath tubes 30 and joints 10 are provided.

3 and 4 show the upper concrete block 2 and the lower concrete block 2 '. The upper concrete block 2 shown in FIG. 3 is provided with one opening 8 in the lateral direction X on the side wall 3 '. Lower concrete block 1 is lower concrete block 2 '
And a plurality of sheath tubes 30 and notches on the side walls 3 and 3'and the top slab 4 in order to join the floor slab 6 shown in FIG. 5 as the structural unit A of the reservoir structure in the vertical direction Y with each other. A part 9 is provided. At this time, in order to perform the joining in the lateral direction X, a large number of sheath tubes 30 and joining portions 1 are attached to the side walls 3, 3'and the top plate 4.
It has 0.

In the lower concrete block 2'shown in FIG. 4, one opening 3 is provided on the side wall 3'in the middle of the lateral direction X. The upper concrete block 2 shown in FIG. 3 is provided with a large number of unbonded PC-steel rods on the side walls 3 and 3'to join the upper and lower concrete blocks with each other, while the horizontal direction X and the vertical direction are provided as structural units A of the reservoir structure. For joining to Y, a large number of flange steel plates 11 are provided so as to project from one end of the bottom plate 5 on the side wall 3'side. At this time, for joining in the lateral direction X, a large number of sheath tubes 30 and joining portions 10 are provided on the side walls 3, 3 ′ and the bottom plate 5.

FIG. 5 shows the structure of the floor slab 6. Since the floor slab 6 is joined to the upper concrete blocks 1 and 2, angle portions 40 that are substantially right angles are formed at both ends. The angle portion 40 is a surface 41 that is inclined inward through the upright surface. have. In addition, a grout hole 14 and a notch 9 are formed at the end for this joining.

FIG. 6 shows the bottom block 7. This bottom slab block 7 is a flange steel 1 formed so as to project in the lateral direction X from the end for joining to the lower concrete blocks 1'and 2'and for joining in the lateral direction X and the longitudinal direction Y.
1 is provided.

FIG. 7 shows the upper concrete block 1 and the lower concrete block 1'shown in FIGS. 1 and 2 above.
The concrete block structure obtained by joining the concrete block structure and the concrete block structure obtained by joining the upper concrete block 2 and the lower concrete block 2 ′ shown in FIGS. 3 and 4 are joined together in the lateral direction X. Concrete block structure A'constructed by
Is shown in side view.

FIG. 8 is a sectional view taken along the section line I--I of FIG. 7, in which the upper concrete block 1 and the lower concrete block 1'shown in FIGS. 1 and 2 are joined together. The concrete block structure obtained and the concrete block structure obtained by joining the upper concrete block 2 and the lower concrete block 2 ′ shown in FIGS. 3 and 4 are shown in FIG. 6 shows a state in which the concrete block A is constructed by being joined vertically with the bottom slab block 7 shown in FIG. As is clear from this figure, the concrete block structure A has spaces 12 and 13.

In FIGS. 7 and 8, a foundation concrete 21 is placed on a foundation stone 20 built on the ground, and a large number of concrete block structures A are used for adjusting the dry kneading mortar 22 on the foundation concrete 21. Used as a concrete block body 1, 1 ', 2,
It is connected in the lateral direction X via the joint 2 ', that is, the floor slab 6.

9 and 10 show enlarged views for connecting the concrete block bodies 1, 1 ', 2, 2'. A large number of concrete block bodies 1, 1 ',
For connection of 2, 2 ', a PC-steel rod 31 is drawn through the sheath tube 30, and an anchor plate 34, a washer 35, and a nut 36 are attached to the PC-steel rod 31 in advance at the joint portion 6, and a concrete block body is provided. The tension assisting PC-steel rods 31 are drawn from the inside of the sheath tube from the side walls 3, 3'of the 1, 1 ', 2, 2', the top plate 4, and the bottom plate block 5 in the lateral direction X, and are drawn first. The concrete block bodies 1, 1 ′, 2, 2 ′ are connected by connecting them by using the coupler of the PC-steel rod 31 and tensioning the auxiliary PC-steel rod 31 by the tension jack. After the tension, the nut 36 is re-tightened, the coupler 36 is removed, the auxiliary PC-steel rod 31 is pulled out, and the tension (connection) work is completed. The gap between the sheath tube 30 and the PC-steel rod 31 is filled with grout mortar 40, and the notch of the joint 6 is filled with mortar 41.

11 and 12 show in detail the working steps for joining the concrete block bodies 1, 1 ', 2, 2'and the floor slab 6. The PC-steel rod 31 is connected to the connection coupler 33 attached to the upper end of the unbonded PC-steel rod 32 embedded in the side walls 3, 3'of the lower concrete blocks 1 ', 2', and the upper concrete block is connected. 1 and 2 are installed in line with the lower concrete blocks 1'and 2 '. In the installed state, the previously connected PC-steel rod 31 passes through the sheath pipe 30 embedded in the side walls 3, 3'of the upper concrete blocks 1, 2 and the sheath pipe of the side walls 3, 3 '. It is in a state of projecting into the notch 9 connected to the tip of 30. For tension work, anchor bolt 34, jackie 35,
The nut 36 is attached to the PC-steel rod 31, a tension jack is installed on the upper portion of the cutout portion 9, the PC-steel rod 31 is tensioned, and the nut 36 is tightened by a tightening device attached to the tension jack. The concrete blocks 1 and 2 and the lower concrete blocks 1'and 2'are vertically joined. Where the floor slab 6 is not placed, the sheath tube 30 and the PC-
The gap with the steel rod 31 and the notch 9 are filled with grout mortar 40. The floor slab 6 is placed on the upper concrete blocks 1 and 2 and the lower concrete blocks 1'and 2 '.
The coupler 33 for connection is attached to the tip of the PC-steel rod 31 which is joined to the top and bottom, the PC-steel rod 31 is connected, and the floor slab 6 is mounted on the upper side wall of the concrete block body 1, 1 ′, 2, 2 ′. Place. PC that was previously connected in the mounted state-
The steel rod 31 is embedded in the end portion of the floor slab 6 in the vertical direction Y,
It is in a state of passing through the sheath tube 30 and protruding into the cutout portion 9 connected to the distal end of the sheath tube 30. In the tensioning work, the PC-steel rod 31 is tensioned by the work described above, and the floor slab 6
To join. After the joining work is completed, the sheath tube 30 and P
The space between the C-steel rod 31 and the notch 9 is filled with grout mortar 40. Alternatively, a beam and a concrete block body 1, 1 ', which are attached to the bottom of the floor slab 6 in the vertical direction Y,
The grouting holes 14 provided in the longitudinal direction Y of the floor slab 6 are filled with the grout mortar 40 in the space between the upper side walls 2 and 2 ′.

In FIG. 12, the lower concrete blocks 1'and 2'and the slab block 7 are shown in the horizontal direction X and the vertical direction Y.
The state of joining with is shown in detail. The flange steel plates 11 provided so as to project from the ends of the bottom slab block 5 of the lower concrete blocks 1 ′ and 2 ′ and the end of the bottom slab block 7 in the longitudinal direction Y are butted against each other and the washer 35,
The nut 36 and the high tension bolt 37 are tightened and joined. In addition, the cast-in-place concrete 23 is placed in the space where the flange steel plates 11 are butted and joined.

Although not shown in the drawing, other joining methods, for example, spiral anchors can be used for joining.

[0024]

EFFECTS OF THE INVENTION With the construction of the concrete block structure of the above-mentioned reservoir structure, the disadvantages of the known underground reservoir structure are eliminated, and it becomes possible to reduce the building width and building height and reduce the weight. On the other hand, this facilitates handling during construction and does not require the use of heavy machinery.

[Brief description of drawings]

FIG. 1 is a perspective view of an upper concrete block forming a concrete block structure according to the present invention.

FIG. 2 is a perspective view of a lower concrete block forming a concrete block structure according to the present invention.

FIG. 3 is a perspective view of an upper concrete block forming a concrete block structure according to the present invention.

FIG. 4 is a perspective view of a lower concrete block forming a concrete block structure according to the present invention.

FIG. 5 is a perspective view of a floor slab block.

FIG. 6 is a perspective view of a slab block.

FIG. 7 is a side view of a structure of a water reservoir in which concrete blocks according to FIGS. 2 and 2 are connected to each other.

8 is a cross-sectional view taken along the section line I-I of FIG.

FIG. 9 is a detailed view of a joint portion and a joint portion for joining a concrete block structure.

FIG. 10 is a detailed view showing the joint between the upper concrete block and the lower concrete block and the floor slab.

FIG. 11 is a detailed view showing a joined state of the lower concrete block 1 ′ and the floor slab.

FIG. 12 is a detailed view showing a joined state of the lower concrete block 1 ′ and the floor slab block.

[Explanation of symbols]

 1, 2 Upper concrete block 1 ', 2'Lower concrete block 1, 1', 2, 2'Concrete block body 11 Flange steel plate 14 Grout hole 30 Sheath pipe 31 PC-steel rod 32 Unbonded PC-steel rod 33 Coupler 34 Anchor Plate 35 Washer 36 Nut 37 High-tensile bolt 40 Grout mortar 41 Cement mortar A Concrete concrete structure

Claims (6)

[Claims] 1. In an underground reservoir structure, 1) an upper concrete block (1) integrally formed with a side wall (3, 3 ') and a top slab (4), and a side wall (3, 3).
3 ') and the lower concrete block (1') integrally formed with the bottom slab (5) are respectively connected vertically to form an intermediate block in the horizontal direction (X) and an intermediate block in the vertical direction (Y). , 2) Upper concrete block (2) integrally formed with side walls (3, 3 ') and top plate (4), and side walls (3, 3')
And the lower concrete block (2 ') integrally formed with the bottom slab (5) are respectively connected vertically and in the lateral direction (X).
As an intermediate block, an intermediate block is also used in the vertical direction (Y), and 3) these concrete blocks (1,1 ') and concrete blocks (2,2') are floored in the horizontal direction (X) and the vertical direction (Y). An underground reservoir structure characterized by being connected by a plate (6) and a bottom plate (7). 2. The upper concrete block (1) has an opening (8) in the middle of the side walls (3, 3 ') in the lateral direction (X),
The sheath tube (30) for vertical connection, the notch (9) and the side wall (3, 3 ') for joining in the lateral direction (X) and the sheath tube (30) and the joining portion on the top plate (4). It has (10), The underground reservoir structure of Claim 1 characterized by the above-mentioned. 3. The lower concrete block (1 ') has an opening (8) at an intermediate portion in the lateral direction (X), a connecting steel rod (32) for vertical connection, and a side wall for joining in the lateral direction (X). The (3, 3 ') and bottom plate (5) are provided with a plurality of sheath tubes (30) and joints (10), and the lateral direction (from the one end of the bottom plate (5) on the side wall (3, 3') side ( X) and vertical direction (Y)
The underground steel basin structure according to claim 1, wherein a flange steel plate (11) used for joining is provided in a protruding manner. 4. The upper concrete block (2) has an opening (8) at an intermediate portion of the side wall (3 ') in the lateral direction (X), and a sheath pipe (30) at the side wall (3, 3') for vertical connection. ), Notches (9) and side walls (3, 3 ') for joining in the lateral direction (X) and sheath plate (30) and joining part (10) on top plate (4). The underground reservoir structure according to claim 1. 5. The lower concrete block (2 ') has an opening (8) in the middle of the side wall (3') in the lateral direction (X), a connecting steel rod (32) for vertical connection, and a lateral direction (X). ), The side walls (3, 3 ') and the bottom plate (5) are provided with a plurality of sheath tubes (30) and joints (10).
The flange steel plate (11) used for joining in the lateral direction (X) and the longitudinal direction (Y) is projected from one end of the bottom slab (5) on the side, the underground according to claim 1. Reservoir structure. 6. An upper concrete block (1, 2 ') integrally joined together and a lower concrete block (1', 2 ') integrally joined together as claimed in claim 1. Underground reservoir structure.