JP3254617B2 - Moving roof for concrete casting - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a moving roof for concrete placement for preventing rainfall on a concrete placement surface.

[0002]

2. Description of the Related Art In the construction of concrete on a dam embankment, in order to prevent deterioration of the material due to mixing of rainwater into fresh concrete, when the rainfall exceeds the following conditions, the concrete should not be cast. Stipulated.・ In the case of slump concrete (casting of columnar blocks, casting of expanded layers) Rainfall is 4 mm / hour or 20 mm / day ・ In the case of zero slump concrete (RCD casting) The rainfall is 2 mm / hour or 10 mm / day A temporary roof is planned to be moved as the casting progresses so that concrete can be poured even in rainy weather.

[0003]

When concrete is poured, fresh concrete conveyed by a dump truck is first unloaded onto a casting surface, and is appropriately leveled. Then, the concrete is compacted by a compacting device. After that, the compacted concrete is jointed by a joint cutting device. If these operations are performed under the moving roof, there is a high risk that a collision accident will occur due to the denseness of the dump truck and each of the above-mentioned devices. To prevent this, the driver of the dump truck and the operator of each of the devices have to perform much operation. Care must be taken, resulting in a reduction in work efficiency. In addition, since each device moves around in a narrow range, there is a problem that a casting surface to be cast from now on is roughened by those devices, and the joining quality, that is, the construction quality is deteriorated.

The present invention has been made in view of the above circumstances, and avoids collisions between various auxiliary devices required for concrete casting, thereby improving work efficiency, and maintaining a casting surface to maintain construction quality. It is an object of the present invention to provide a moving roof for placing concrete in which the roof is held.

[0005]

Means for Solving the Problems The present invention has been made in order to achieve the above object, according to claim 1, the top of the dam
Move to the top of dam body when concrete is poured into the section
Mobile roof for concrete casting
With moving wheels that can travel on the top of the dam embankment
Part and the concrete casting surface provided above the leg
To prevent rainfall on the concrete casting surface by covering
The roof body is provided with a moving means covering almost the entire area of the roof body, and the auxiliary device for concrete placing is suspended on the moving means so as to be able to move up and down,
The moving means includes a plurality of rails that are laid in parallel with each other and constitute a plurality of adjacent driving lines, and a driving device provided on one of the driving lines or the concrete mounting auxiliary device. And a rail constituting each of the casting lines is provided so as to be movable in a direction intersecting with the fixed rail while being fixed to the fixed rail and being separated from the fixed rail and holding the auxiliary device for concrete casting. , the movement that is continuous with the fixed rail in the middle, Ri Do from the movable rail for moving the concrete設用accessory devices other pouring line, the con
As ancillary equipment for cleat placement,
The compacting device for compacting concrete and the vibro device
The concrete compacted by vibrating the jointing plate vertically
The present invention is characterized in that a joint cutting device for joining a cleat is adopted .

[0006] The second aspect of the present invention also provides a dam embankment.
Can be moved to the top of dam body when concrete is poured in
It is a moving roof for concrete casting installed in Noh,
Runs on the constructed concrete surface at the top of the dam embankment
A leg provided with a movable wheel, and a side extending from the leg.
Concrete by covering the concrete casting surface
Equipped with an overhanging roof to block rainfall on the
The overhanging roof is provided with moving means for covering almost the entire area of the overhanging roof, and the moving means is provided with concrete casting.
The installation auxiliary device is suspended so as to be able to move up and down, and the moving means includes:
A plurality of rails which are laid in parallel with each other along a direction orthogonal to the direction of the overhang of the overhanging roof to form a laying line, and a drive device provided on one of these rails or the auxiliary device for concrete laying And from
Vibrating as ancillary equipment for concrete casting
A compaction device for compacting concrete with
The joint plate is vibrated up and down with an ibro device to tighten it.
A joint cutting device is used to joint the compacted concrete.
It is characterized by being obtained by use.

[0007] The third aspect of the present invention also provides a dam embankment.
Can be moved to the top of dam body when concrete is poured in
It is a moving roof for concrete casting installed in Noh,
Legs with moving wheels that can run on top of dam body
And cover the concrete casting surface provided above the legs.
To prevent rainfall on the concrete casting surface
Roof body, fixed to the roof body and stretched laterally beyond the legs
To cover the concrete casting surface.
Overhanging roof to block rainfall on concrete casting surface
With the door, wherein the roof body and the overhanging roof, the moving means is provided for covering substantially the entire area of their roof body and overhanging roof, concrete設用 to said moving means
Ancillary devices are suspended so as to be able to ascend and descend, and the moving means includes a plurality of rails which are installed in parallel with each other to form a plurality of adjoining placing lines, and a plurality of the placing lines or the concrete placing accessory device. The driving device is provided on either one of the driving lines, the rails constituting each of the driving lines are fixed rails, and separated from the fixed rails,
The concrete placing auxiliary device is provided so as to be movable in a direction intersecting with the fixed rail while holding the concrete placing auxiliary device. Ri Do from the movable rail for moving the line, the concrete設用supplementary instrumentation
Compact the concrete with a vibrator
Up and down the joint plate by vibrator
Joints compacted concrete by vibrating
It is characterized by employing a joint cutting device .

[0008]

According to the present invention , concrete is provided on the top of the dam embankment.
When placing the concrete, place the concrete casting surface on the roof
By covering more, the dam embankment is not affected by rainfall
Construction becomes possible. And ancillary equipment for concrete casting
The compacting device and the jointing device are suspended on moving means provided on the roof body, and the moving means performs the placing operation while moving the devices on any of the placing lines. The risk of colliding with each other in a dense manner, or colliding with a dump truck or the like for unloading concrete is avoided, and the concrete placing surface is not roughened by the auxiliary device for concrete placing. In addition, if the concrete casting is performed under the overhanging roof provided on the roof body, the concrete casting surface does not have to be roughened by the legs of the roof body. Further, the auxiliary device for placing concrete is provided so as to be movable in a direction intersecting with the fixed rail and the fixed rail and separated from the fixed rail, and is moved by a movable rail which is continuous with the fixed rail during the movement. With this configuration, by transferring between the fixed rail and the movable rail, the plurality of auxiliary devices for placing concrete can be moved to another placing line and moved to an arbitrary position.

[0009]

An embodiment of the present invention will be described below with reference to the drawings. FIGS. 1 and 2 show the entirety of a moving roof 1 according to an embodiment. The moving roof 1 has a rectangular main body 2 in a plan view and covers a concrete casting surface L.
And the moving means 5 and 5 provided on the roof main body 2. The moving means 5 and 5 are provided in the roof body 2, and move in the left and right directions in FIGS. 1 and 2. It has become. In the following description, the moving direction of the movable roof 1 is set to the left direction for convenience, and is indicated by an arrow (a).

The roof main body 2 has beams 6 extending in a moving direction and a direction perpendicular to the moving direction, which are assembled in a rectangular shape.
A gable roof material 7 is supported, and a reinforcing material (not shown) is assembled. The leg portion 4 includes a pillar 8 hanging from four corners of a beam 6 formed in a rectangular shape, and the wheel 3 provided at a lower end of the pillar 8. The wheels 3 are provided with a drive device, and the entire movable roof 1 moves by itself. Crawlers or rubber wheels are used for the wheels 3 in order to reduce the surface pressure.

A plurality of (five in this case) fixed rails 9 constituting the moving means 5 are arranged on the beam 6 in parallel with each other and at equal intervals. These fixed rails are made of H-shaped steel, and extend along the moving direction of the moving roof 1, with both flanges being horizontal and the web being vertical. A pair of adjacent fixed rails 9 is one driving line, and in this case, four driving lines (first to fourth driving lines 10A, 10B, 10C, and 10D) are set. The fixed rail 9 is bridged between the front and rear beams 6, and a discontinuous portion 11 which is a broken portion is formed in the middle of the fixed rail 9. In other words, the fixed rail 9
It is composed of a long main rail 9a and a short auxiliary rail 9b located on a straight line with a discontinuous portion 11 therebetween.
On both sides of the discontinuous portion 11 in the width direction, a line moving rail 12 made of an H-shaped steel extends perpendicular to the fixed rail 9. A pair of movable rails 13 moves along the line moving rail 12. The distance between the two movable rails 13 is equal to the distance between the fixed rails 9 arranged side by side, and each of the driving lines 10A to 10D is moved along the line moving rail 12 by driving means (not shown).
A pair of rails 9 that move between the beams and are continuous with the fixed rails 9 on the way and continue between the front and rear beams 6.
A, that is, the casting lines 10A to 10D are configured.

On the rail 9A, a compacting device 20 for compacting the concrete C and a joint cutting device 30 for jointing the compacted concrete C, which are auxiliary devices for placing concrete, move along the rail 9A. It is suspended.

As shown in FIG. 3, the compacting device 20 vibrates a plurality of plate-like bar-shaped vibrators 23 provided below the frame 21 by a hydraulic drive source 22 supported by the frame 21 and arranged in front, rear, left and right directions. The frame 21 is suspended by a wire 25 wound up and out by a pair of left and right motors 24. The motor 24 is supported by a trolley beam 26,
Work rail 60 through a pair of left and right trolleys 26a.
It is suspended. A drive wheel 27 for moving along the work rail 60 is mounted on one of the pair of left and right trolleys 26a. Further, the work rail 60 is suspended by two adjacent rails 9A via a pair of left and right trolleys 61a. The pair of left and right trolleys 61a are both provided with drive wheels 62 for moving along the rail 9A. The operation of the bar-shaped vibrator 23 of the compacting device 20, the elevation by winding and unwinding of the wire 25, and the operation of the drive wheels 27 and 62 are performed by a control panel 28a fixed to the frame 21 and a relay panel fixed to the trolley beam 26. Cable 2 for 28b
This is performed by the remote switch S1 connected via the switch 9a. A drive power source (not shown) for the motor 24 and the drive wheels 27 and 62 is connected at an end of a cable 29 b routed along the work rail 60 to a trolley bar provided along the fixed rail 9. The motor 24 and the trolleys 26a and 61a constitute a part of the moving means 5 on the compacting device 20 side.

[0014] As shown in FIG.
A joint cutting plate 33 provided below the frame 31 is configured to vibrate up and down by a vibro mechanism 32 supported by the frame 31, and the frame 31 is a wire wound and unwound by a pair of left and right motors 34. Suspended at 35. The motor 34 is supported by a trolley beam 36, and the trolley beam 36 is
It is mounted on the work rail 70 via a. A drive wheel 37 for moving along the work rail 70 is mounted on one of the pair of left and right trolleys 36a. Further, the work rail 70 is connected to two adjacent rails 9 via a pair of left and right trolleys 71a.
A is suspended. A pair of left and right trolleys 71a are driving wheels 72 for moving along the rail 9A.
Is installed. Joint plate 33 of joint cutting device 30
, The lifting and lowering by winding and unwinding the wire 35, and the operation of the drive wheels 37 and 72 are performed by the control panel 38a fixed to the frame 31 and the relay panel 38b fixed to the trolley beam 36 similarly to the compaction device 20. The motor 34 and the driving power supply (not shown) of the driving wheels 37 and 72 are connected to the cable 3 that is routed along the rail 9A.
The end of 9 b is connected and supplied to a trolley bar arranged along the fixed rail 9. The motor 34 and the bracket 36a constitute a part of the moving means 5 on the joint cutting device 30 side.

The compacting device 20 and the joint cutting device 3
0 means each driving line 10 by the movable rail 13.
It can move arbitrarily to A to 10D. That is, the rail 9A is formed by connecting the movable rails 13 to the two fixed rails 9 of the casting line on which the compaction device 20 (joining device 30) is suspended.
Then, the compacting device 20 (joining device 30) is moved to the movable rail 13 along the line moving rail 12 on the two fixed rails 9 of different target driving lines.
Thus, the compaction device 20 (joint cutting device 30) can be moved on the casting line.

Next, the operation of the moving roof 1 of the present embodiment having the above-described configuration and the effects based on the operation will be described below.

When placing concrete C on the concrete placing surface L during rainfall, the movable roof 1 is moved to the concrete placing surface L and covered with the roof main body 2, and the movable roof 1 is moved in the forward direction. The rightmost casting line 10A
The compacting device 20 and the joint cutting device 30 are arranged in this order from the front side at the rear end of the driving line 10A, that is, the rear end of the auxiliary rail 9b. At this time, these devices 20 and 30 are raised. Next, after dumping the fresh concrete C onto the concrete casting surface L below the casting line 10A by the dump truck D and leveling it appropriately, the compacting device 20 is lowered and operated, and the rod-shaped vibrator 23 is used. Concrete C
The compaction device 20 is moved forward while compacting. Following this, the joint cutting device 30 is lowered and operated to move the joint cutting device 30 forward while jointing the concrete C with the joint cutting plate 33.

Each of the devices 2 up to the forefront of the casting line 10A
When 0 and 30 move, first, the joint cutting device 30 is retracted and moved to the movable rail 13, and the movable rail 13 is moved to the next casting line 10 </ b> B. The sub rail 9b is moved to the last end. Next, the movable rail 13 is returned to the driving line 10A, and the compaction device 30 is similarly positioned at the rearmost end of the driving line 10B and in front of the joint cutting device 30. This completes the preparation for casting on the casting line 10B, and then unloads the fresh concrete C onto the concrete casting surface L below the casting line 10B. The apparatus 30 compacts and joints the concrete C.

By repeating the above operation, the concrete C is poured (compacted and cut off) on the placing lines 10C and 10D, and the concrete is placed on the concrete placing surface L covered by the movable roof 1. Is completed. When the concrete C cast in this way has been cured to the extent that it is not affected by rainwater, the moving roof 1
Is moved forward to cover the next concrete casting surface, and concrete is cast on the casting surface in exactly the same manner as described above.

According to the moving roof 1, only the dump truck D can enter the concrete placing surface L, and the compacting device 2
Since the 0 and the jointing device 30 are suspended on the rail 9A installed on the roof main body 2, there is a danger that the devices 20 and 30 may collide with each other in a dense manner or collide with the dump truck D. Can be avoided. Therefore, the attention paid by the operators of the devices 20 and 30 and the driver of the dump truck D to avoid danger is reduced, and as a result, the work efficiency is improved. In addition, the concrete casting surface L to be cast from now on is not roughened by the respective devices 20 and 30, so that the joint quality and the construction quality are maintained.

When it is necessary to level the concrete C unloaded by the dump truck D, particularly when the concrete C needs to be leveled by the device, the device is disposed in front of the compaction device 20 and the rail 9A.
Can be moved along. FIG. 5 shows an example of the leveling device. The leveling device 40 is composed of a shovel 41 for grabbing and leveling the fresh concrete C. It is suspended. The motor 42 is fixed to a slider 44 that is orthogonally bridged between the two rails 9A and that can move along the rails 9A. The slider 44 is provided with a driving wheel for moving along the rail 9A and driving means (not shown) for driving the driving wheel. The shovel 41 is a slider 4 when viewed from above.
4 and thus located substantially at the center of the rail 9A.

FIG. 6 shows another embodiment of the present invention. The movable roof 50 is composed of a beam 6 having a roof main body 2 similar to that described above and an extended roof 51 extending laterally beyond the legs 4. And a pair of fixed rails 5
2 along the rail 52 and the compacting device 2
0 and the joint cutting device 30 are configured to move.

In the case of the movable roof 50, the fixed rail 9 and the movable rail 13 are not installed on the roof main body 2, and concrete C is cast only on the portion covered by the overhanging roof 51. . However, the movable roof 1 is retrofitted with the overhanging roof 51, and the line moving rail 12 is extended to the overhanging roof 51 so that the compacting device 20 and the joint cutting device 30 can be moved from the movable rail 13 to the fixed rail 52. May be.

According to the movable roof 50, for example, the leg portion 4 is moved on the concrete casting surface L where the strength is generated to some extent about 3 days after the casting, and the overhanging roof 51 on the side thereof is used. By casting the concrete C on the covered concrete casting surface L, there is an advantage that the leg portion 4 does not move on the concrete C immediately after the casting and there is no possibility that the casting surface is roughened.

[0025]

As described above, according to the moving roof for placing concrete of the present invention, it is not affected by rainfall.
Work on concrete placement on top of dam body
Not only to obtain it, but also to
All compaction devices and joint cutting devices are suspended from moving means provided on the roof main body, and the moving means performs the setting operation while moving the devices on any of the setting lines. The danger of these devices being densely colliding with each other or colliding with a dump truck that unloads concrete is avoided, thereby improving work efficiency. The surface is not roughened, and the construction quality is maintained. In addition, if the concrete casting is performed under the overhanging roof provided on the roof body, the concrete casting surface does not have to be roughened by the legs of the roof body. Also,
A configuration in which the auxiliary device for concrete placing is provided with a fixed rail and a movable rail that is separated from the fixed rail and is movable in a direction intersecting with the fixed rail, and is moved by a movable rail that is continuous with the fixed rail during the movement. With this arrangement, the plurality of auxiliary devices for placing concrete can be moved to another placing line and moved to an arbitrary location, so that the degree of freedom in placing work increases.

[Brief description of the drawings]

FIG. 1 is a perspective view of a moving roof according to an embodiment of the present invention.

FIG. 2 is a schematic plan view of the same.

FIG. 3 is a side view of a compaction device attached to a moving roof according to one embodiment.

FIG. 4 is a side view of the same-section grounding device.

FIG. 5 is a side view of the leveling device.

FIG. 6 is a schematic plan view of another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 50 Moving roof 2 Roof body 3 Moving wheel 4 Leg 5 Moving means 9, 52 Fixed rail 10A, 10B, 10C, 10D Casting line 12 Line moving rail 13 Movable rail 20 Compaction device (for concrete casting) Ancillary equipment) 30 Joint cutting equipment (Auxiliary equipment for concrete casting) 40 Leveling equipment (Auxiliary equipment for concrete casting) 51 Overhanging roof C Concrete L Concrete casting surface

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yoichi Fukumoto 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Corporation (72) Inventor Ken Takahata 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu (72) Inventor Takuro Odawara 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Corporation (56) References JP-A-4-323467 (JP, A) JP-A-5- 231006 (JP, A) Fully open sho 53-40026 (JP, U) Fully open sho 60-18103 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) E04G 21/28 E04G 21 / 02 103

Claims (3)

(57) [Claims] Claims: 1. Cast concrete at the top of a dam embankment
Concrete movably installed on top of the dam embankment
A mobile roof for driving a car, with legs equipped with mobile wheels that can travel on the top of the dam embankment
And cover the concrete casting surface provided above the legs.
To prevent rainfall on the concrete casting surface
And a roof body, the roof body, the moving means is provided to cover almost the entire該屋underlying body, concrete設用 to said moving means
Ancillary devices are suspended so as to be able to ascend and descend, and the moving means includes a plurality of rails which are erected in parallel to each other to form a plurality of adjoining placing lines, and the placing lines or the concrete placing accessory device. A driving device provided on either one of the driving lines, the rails constituting each of the driving lines are fixed rails,
This concrete rail is separated from the fixed rail, and provided so as to be movable in a direction intersecting the fixed rail while holding the auxiliary device for concrete casting. Ri Do from the movable rail for moving the auxiliary device to another pouring line, as the concrete設用miscellaneous equipment, a vibrator
Compaction device for compacting concrete with vibrator
(2) The joint plate is compacted by vibrating the joint plate vertically.
Adopts a joint cutting device to joint concrete
A moving roof for placing concrete, comprising: 2. Concrete is poured at the top of the dam embankment
Concrete movably installed on top of the dam embankment
A movable roof for casting, which can be run on the constructed concrete surface at the top of the dam embankment
A leg provided with a movable wheel, and a side extending from the leg.
Concrete by covering the concrete casting surface
An overhanging roof for blocking rainfall on the mounting surface, and the overhanging roof is provided with moving means covering substantially the entire area of the overhanging roof, and the moving means is provided with concrete
The installation auxiliary device is suspended so as to be able to ascend and descend, and the moving means comprises a plurality of rails which are laid in parallel to each other along a direction orthogonal to a direction in which the overhanging roof extends so as to form a casting line; Ri Do a drive device provided on one of the concrete設用miscellaneous equipment, as the concrete設用miscellaneous equipment, a vibrator
Compaction device for compacting concrete with vibrator
(2) The joint plate is compacted by vibrating the joint plate vertically.
Adopts a joint cutting device to joint concrete
A moving roof for placing concrete, comprising: 3. Concrete is poured on the top of the dam body.
Concrete movably installed on top of the dam embankment
A mobile roof for driving a car, with legs equipped with mobile wheels that can travel on the top of the dam embankment
And cover the concrete casting surface provided above the legs.
To prevent rainfall on the concrete casting surface
Roof body, fixed to the roof body and stretched laterally beyond the legs
To cover the concrete casting surface.
Overhanging roof to block rainfall on concrete casting surface
The roof main body and the overhanging roof are provided with moving means covering almost the entire area of the roof main body and the overhanging roof, and the concrete placing auxiliary device is suspended by the moving means so as to be able to move up and down, The moving means includes a plurality of rails that are laid in parallel with each other and constitute a plurality of adjacent driving lines, and a driving device provided on one of the driving lines or the concrete mounting auxiliary device. The rails constituting each of the casting lines are fixed rails,
This concrete rail is separated from the fixed rail, and provided so as to be movable in a direction intersecting the fixed rail while holding the auxiliary device for concrete casting. Ri Do from the movable rail for moving the auxiliary device to another pouring line, as the concrete設用miscellaneous equipment, a vibrator
Compaction device for compacting concrete with vibrator
(2) The joint plate is compacted by vibrating the joint plate vertically.
Adopts a joint cutting device to joint concrete
A moving roof for placing concrete, comprising: