JPH07119133A - Method and apparatus for all-weather concrete placement - Google Patents

Abstract

PURPOSE:To make it possible to place concrete even in a rainy day without influence of the rain even if the concreting part is out of the roof, by removing the water in the applied site while avoiding the rain with the roof and placing concrete and compacting it. CONSTITUTION:A mobile body 3 having a-roof 4 covering a part of place where concrete is applied, is prepared. The water on the surface of the applied place is removed in turn by the suction roller 6 at the front of mobile body 3 in accordance with the movement thereof. Mortar 9 is laid down and leveled at the front of the middle of mobile body 3 and concrete 16 is placed in sequence on the mortar 9 at the rear side of the middle of mobile body 3. The concrete is compacted by vibrators 26 at the rear end of mobile body 3 in accordance with the further movement thereof. The concrete 16 is leveled by a finish plate 31 and covered with a curing sheet 34.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an all-weather concrete pouring method and apparatus which can be used for pouring concrete even during rainfall.

[0002]

2. Description of the Related Art Conventionally, it is common knowledge that concrete pouring work in dam construction is not carried out during rainfall, and it is regulated to stop pouring under the following conditions depending on the type of concrete. In the case of zero slump concrete (RCD method), hourly rainfall is 2 mm / h or more or daily rainfall is 10 mm / day or more. In the case of slump concrete (columnar construction method, expanded layer construction method), hourly rainfall is 4 mm / h
Or more or daily rainfall of 20 mm / day or more.

[0003]

Therefore, there has been a problem that the process and the construction period are extremely influenced by the weather. In addition, when it rains, it is necessary to interrupt the concrete pouring work or change the concrete mix in the middle, and if there is a possibility of rain, prepare for these measures beforehand and It was a lot of work.

Therefore, an object of the present invention is to provide an all-weather concrete pouring method and apparatus which can be constructed even when it is raining and whose process and construction period do not depend on the weather.

[0005]

In order to achieve the above object, the all-weather concrete pouring method of the present invention provides a moving body having a roof portion which covers a part of the pouring portion on which concrete is to be poured. Prepared and, along with the movement of the moving body, sequentially remove the water on the casting portion covered by the front end side of the roof of the moving body in the moving direction to remove the water and move the moving body. Mortar is sequentially spread on the casting part covered with the moving direction middle front side of the roof part that has moved with, and in the moving direction middle rear side of the roof part that has moved with further movement of the moving body. It is characterized in that concrete is sequentially cast on the covered mortar, and the concrete covered on the rear end side in the moving direction of the roof part moved in accordance with the further movement of the moving body is sequentially compacted.

Further, the all-weather concrete pouring device of the present invention has a moving body having a roof portion, and the moving body removes moisture provided under the roof portion on the front side in the moving direction. Moisture removing means, a mortar leveling means for spreading and leveling mortar, which is provided on the lower side of the roof portion on the rear side in the moving direction from the water removing means, and on the rear side in the moving direction from the mortar leveling means. Concrete placing means for placing concrete provided on the lower side of the roof part, and concrete for compacting the concrete provided on the lower side of the roof part behind the concrete placing means in the moving direction. And a compacting means.

[0007]

According to the all-weather concrete pouring method of the present invention, while avoiding rainfall on the roof of the moving vehicle,
With the movement of the moving body, remove water from the placing portion, then spread the mortar and level it, place concrete on it and compact it, and carry out these continuously with the movement of the moving body. It will be. Therefore, while avoiding rainfall on the roof part, the water in the pouring portion is removed and concrete pouring is performed to further concretely compact the concrete.
After that, even if the concrete pouring part goes out from the part covered with the roof as the moving body moves, it is not affected by the rainfall. Further, if necessary, a sheet laying means for laying a sheet on the concrete surface may be provided behind the concrete compacting means so as to cover the surface.

Further, according to the all-weather concrete pouring device of the present invention, the water removing means is provided on the lower side of the roof portion on the front side in the moving direction of the moving body as the moving body moves. The mortar leveling means for removing water from the casting portion and the mortar leveling means provided on the lower side of the roof portion on the rear side in the moving direction from the moisture removing means, and the mortar on the casting portion from which the moisture has been removed by the moisture removing means The concrete placing means provided on the lower side of the roof portion on the rear side in the moving direction from the mortar laying means, and placing concrete on the mortar,
Concrete is compacted by the concrete compacting means provided on the lower side of the roof portion on the rear side of the concrete placing means in the moving direction, and these are continuously performed. Therefore, while avoiding rainfall on the roof part, water is removed from the pouring portion and concrete pouring is performed to form a solid concrete pouring layer. Even if you go out from the area covered by the roof due to the movement of the, you will not be affected by rainfall. Further, if necessary, a sheet laying means for laying a sheet or the like on the concrete surface may be provided at the rearmost portion to further prevent rain.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An all-weather concrete placing method and apparatus according to an embodiment of the present invention will be described below with reference to FIGS. Figure 1
Shows an all-weather concrete pouring device 1 of the present embodiment, and the all-weather concrete pouring device 1 has moving means 2 (see FIG. 2, moving means 2 in FIG. 2) such as wheels or crawlers on both sides. Is shown as a wheel) is provided. On the upper side between the moving means 2 of the moving body 3, a roof portion 4 extending substantially horizontally is provided so as to cover the entire upper side of the moving body 3, and the roof portion 4 is naturally from above. It prevents the rainfall from reaching the lower side. Further, at the lower middle position of the roof part 4 of the moving body 3, there is provided a driving part 5 on which a driver rides to operate the all-weather concrete pouring device 1. The front side of the moving body 3 in the moving direction (hereinafter simply referred to as the front side of the moving direction) is the left side in FIG. 1, and the rear side of the moving body 3 in the moving direction (hereinafter simply referred to as the rear side of the moving direction) is shown in FIG. On the right.

In the case where the moving body 3 rolls under the roof 4 at the frontmost side in the moving direction, on the casting portion where concrete should be cast, and there is unnecessary water in the casting portion. An absorbing roller 6 that absorbs this is rotatably supported.
The absorbing roller 6 is detachably attached to the moving body 3 and is removed when the weather is clear in the place where unnecessary water does not exist.

On the rear side in the moving direction of the absorbing roller 6, air is blown to the water-absorbed casting portion located below by the movement of the moving body 3 so that at least mortar can be spread. An air blow 7 for drying and adjusting is attached adjacently. It should be noted that the air blow 7 can be independently switched between operating and non-operating, and is in a non-operating state in fine weather or the like where it is not necessary to dry the placing portion. The absorbing roller 6 and the air blow 7 constitute a water removing means 8 for removing the water in this embodiment.

On the rear side in the moving direction of the air blow 7, a mortar spreader 10 for sprinkling the mortar 9 is sprinkled on the dried casting portion located below by the movement of the moving body 3.
Adjacent to the mortar spreader 10
Has a lower discharge mechanism 11 for sprinkling the mortar 9 and an upper mortar hopper 12 for receiving the mortar 9 from the outside and temporarily storing it. The mortar spreader 10 is capable of continuously spouting out a predetermined amount of mortar 9 continuously.

On the rear side of the mortar spreader 10 in the movement direction, the mortar leveling plate 1 which evenly spreads the sprinkled mortar 9 located below by the movement of the moving body 2.
3 are mounted adjacent to each other. In addition, the mortar spreader 10 and the mortar leveling plate 13 spread the mortar 9 of the present embodiment on a mortar leveling means 14.
Are configured.

On the rear side in the moving direction of the mortar leveling plate 13,
On the leveled mortar 9 located below by the movement of the moving body 3, a concrete spreader 17 for sprinkling the concrete 16 is provided adjacently, and the concrete spreader 17 spouts the concrete 16 on the lower side. And the upper concrete hopper 19 that receives the concrete 16 from the outside and temporarily stores it. The concrete spreader 17 can spout a predetermined amount of concrete 16 continuously in a constant manner. Reference numeral 21 in the figure denotes a concrete supply device for charging the concrete 16 carried by a dump truck, a bucket or the like into the concrete hopper 19.

On the rear side in the moving direction of the concrete spreader 17, the sprinkled concrete 16 located below by the movement of the moving body 3 is evenly distributed with respect to the placing width (horizontal direction orthogonal to the moving direction). A screw-type dispersion auger 22 for spreading is provided adjacently. A screw type height adjusting auger 23 for leveling the spread concrete 16 located below by the movement of the moving body 3 to a constant height level is adjacent to the rear side of the dispersing auger 22 in the moving direction. Is provided.

At the rear side of the height adjusting auger 23 in the moving direction, there is provided a height adjusting rotary roller 24 for further adjusting the height of the leveled concrete 16 positioned below by the movement of the moving body 3 to a constant level. It is provided. On the rear side in the moving direction of the height adjusting rotary roller 24, a vibrator 26 for dam concrete is provided which vibrates the leveled concrete 16 located below by the movement of the moving body 3 to perform compaction. A predetermined number is provided in the direction. The vibrator 26 can be moved up and down by an elevator mechanism (not shown).

The vibrator 26 and the lifting mechanism (not shown) are supported by the moving body 3 via a slide mechanism 27 which is slidable back and forth in the moving direction. This is because the moving body 3 always moves, but the vibrator 26 cannot move forward during the compaction work, and therefore the deviation is absorbed by the slide mechanism 27. That is, when the slide mechanism 27 is positioned on the most front side in the moving direction, the vibrator 26 is lowered and inserted into the concrete 16 so that the slide mechanism 27 extends rearward in the moving direction to stop the forward movement of the vibrator 26. The vibrator 26 performs compaction, the vibrator 26 is raised before the slide mechanism 27 reaches the limit position on the extension side, the slide mechanism 27 is contracted, and such a process is repeated.

On the rear side of the moving direction of the vibrator 26, a joint plate 28 is lowered and inserted into the compacted concrete 16 located below by the movement of the moving body 3 if necessary, and joint cutting is performed. The device 29 is provided adjacently. In addition, the joint cutting device 29 includes a vibrator 26 or a finishing plate 31 with a vibrator described later.
The joint is cut using the vibration of. On the rear side in the moving direction of the joint cutting device 29, a vibrating plate for adjusting the concrete 16 which is positioned below by the movement of the moving body 3 and arranged as needed, that is, a finishing plate 31 with a vibrator is provided adjacently. Has been.

The above concrete spreader 1
7, the dispersion auger 22, the height adjusting auger 23, and the height adjusting rotary roller 24 constitute concrete placing means 32 for placing the concrete 16 in this embodiment. Further, the vibrator 26, a lifting mechanism (not shown), a slide mechanism 27, and a finishing plate 31 with a vibrator are provided.
Which constitutes the concrete compaction means 33 in the present embodiment.

On the rear side of the finishing plate 31 in the moving direction, a curing sheet 34 is laid as will be described later on the surface of the prepared concrete 16, that is, the placing surface 16a, which is positioned below by the movement of the moving body 3. A curing sheet roll support portion 35 is provided that rotatably supports the rolled sheet in a rolled state. On the rear side in the moving direction of the curing sheet roll supporting portion 35 and on the lower side of the rearmost side of the roof portion 4, the surface of the prepared concrete 16, that is, the placing surface 16a, is continuous with the movement of the moving body 3. Specifically, a curing sheet laying device 36 for laying the curing sheet 34 is provided. The curing sheet roll supporting portion 35 and the curing sheet laying device 36 are the sheet laying means 3 in this embodiment.
Make up 7. Here, the curing sheet 34 is pulled out along with the movement of the moving body 3 by, for example, the beginning portion of the spreading sheet being locked to the placing surface 16a. The curing sheet 34 is provided to protect the concrete pouring surface 16a after pouring when it is raining. By laying it even in fine weather, the curing sheet 34 prevents sudden drying of the concrete pouring surface 16a after pouring. Therefore, it is possible to prevent cracks and the like from occurring.

According to the all-weather concrete pouring device 1 of the present embodiment having the above-mentioned structure, the roof portion 4 is covered with the movement of the moving body 3 which continuously moves at a predetermined speed during rainfall. With the configuration from the absorption roller 6 on the frontmost side to the curing sheet laying device 36 on the rearmost side of the range, the following series of methods will be continuously performed. That is, after absorbing unnecessary moisture in the cast portion by the absorbing roller 6 provided on the lower side of the roof portion 4 on the front side of the moving body 3 in the moving direction, air is blown by the air blow 7 to dry the moisture, and the moisture is removed by these. Remove. Then, the mortar spreader 10 mortar 9
And spread it evenly with a mortar leveling plate 13 to spread and spread the mortar 9. Then, concrete 16 is sprinkled on the leveled mortar 9 by the concrete spreader 17, spread by the auger 22 for dispersion and evenly with respect to the setting width, and the auger 23 for height adjustment makes a constant height. The height is adjusted to a constant level by the height adjusting rotary roller 24, and the leveled concrete 1 is leveled by the vibrator 26 supported by the slide mechanism 27.
6 is vibrated for compaction, then, if necessary,
A joint cutting device 29 is attached to the compacted concrete 16.
The joints are cut with, and the concrete 16 is prepared with the finishing plate 31, so that the placing of the concrete 16 is completed. Then, the curing sheet laying device 36 is used to place the curing sheet 34 on the placing surface 1 of the concrete 16 that has been placed.
Laying on 6a.

Here, in the case of dam concrete pouring, for example, as shown in FIG. 2, the pouring is lane pouring, and one all-weather concrete pouring device 1A continuously pours one lane 41. Set up. When the lane 41 is moved to the final driving position (arrow a), the lane 41 is moved horizontally to the moving direction of the driving (arrow b) so as to avoid the already-mounted surface (arrow b). Move to. Then, the wheel or the crawler on one side is run on the surface on which the driving has already been performed, and the next lane is driven. If it is necessary to drive the next lane 42 while the one lane 41 is being driven due to the connection time, the other all-weather concrete placing device 1B is moved in the moving direction. The position will be shifted and the work will be performed. For example, when the lane 41 is placed by the all-weather concrete placing device 1A and this lane 41 is finished placing (arrow a), the all-weather concrete placing device 1B is placing the adjacent lane 42 ( Before the all-weather concrete pouring device 1B finishes pouring the lane 42, the all-weather concrete pouring device 1A further moves to the adjacent lane 43 (arrows b, d) to start pouring. (Arrow e).

As described above, in the present embodiment, while avoiding rainfall on the roof portion 4 of the moving vehicle 3, water is removed from the cast portion as the vehicle 3 moves. Next, the mortar 9 is spread and leveled, the concrete 16 is placed on the mortar 9 to be compacted, and the mortar 9 is further covered with a curing sheet 34, and these are continuously performed as the moving body 3 moves.
Therefore, while avoiding rainfall on the roof part 4, water is removed from the placement portion and concrete placing is performed, and the curing sheet 34 is further covered. Thereafter, the concrete placing surface 16a is moved to the moving body. Even if it goes out from the portion covered with the roof portion 4 as the vehicle 3 moves, it is covered with the curing sheet 34 and is not affected by rainfall. Therefore, construction can be carried out even during rainfall, and the process and construction period will not be affected by the weather.

In addition, since it is possible to continuously perform a series of work in both raining and non-raining, it is safe that the worker does not have to directly enter the placing area. Further, since the heavy machine does not ride on the concrete placing surface 16a after the placing and the curing sheet 34 after the placing is automatically applied, the quality of the joining surface can be kept good. Further, since the entire series of work can be mechanized and automated, variations in construction quality and construction efficiency due to operator skill differences can be eliminated. Further, since only the moving means 2 such as the wheel or the crawler enters the pre-processed portion of the placing surface 16a, the placing surface 16a is not so dirty.

[0025]

As described in detail above, according to the all-weather concrete pouring method and apparatus of the present invention, water is removed from the pouring portion while avoiding rainfall on the roof, and concrete pouring is performed. As a result, it will be further compacted to form a solid concrete layer.Therefore, even if the concrete placing part goes out from the part covered with the roof part due to the movement of the moving body, the effect of rainfall will occur. Never receive. If necessary, the surface of the sheet can be covered by laying the sheet. Therefore, construction can be carried out even during rainfall, and the process and construction period will not be affected by the weather.

[Brief description of drawings]

FIG. 1 is a side view schematically showing an all-weather concrete pouring device according to an embodiment of the present invention.

FIG. 2 is a plan view schematically showing an example of dam concrete pouring by the all-weather concrete pouring device according to the embodiment of the present invention.

[Explanation of symbols]

 1, 1A, 1B All-weather concrete pouring equipment 3 Moving body 8 Moisture removing means 14 Mortar spread leveling means 32 Concrete pouring means 33 Concrete compacting means 37 Sheet laying means

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Tomio Kishino 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Construction Co., Ltd. (72) Inventor Shuo Takahashi 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Construction Co., Ltd. (72) Inventor Hikaru Furuguchi 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Construction Co., Ltd.

Claims (2)

[Claims] 1. A moving body having a roof portion that covers a part of a casting portion on which concrete is to be placed is prepared, and as the moving body moves, a tip end side in a moving direction of the roof portion of the moving body. Moisture on the casting part covered with is sequentially removed, and the moisture is removed and the moving part of the roof moved along with the movement of the moving body is sequentially removed on the casting part covered on the front side. Laying the mortar evenly, placing concrete in order on the mortar covered by the intermediate rear side in the moving direction of the roof part moved with further movement of the moving body, and with further movement of the moving body. An all-weather concrete pouring method, characterized in that the concrete covered on the rear end side in the moving direction of the moved roof portion is sequentially compacted. 2. A moving body having a roof portion, wherein the moving body is provided below the roof portion on the front side in the moving direction, and is a moisture removing means for removing moisture, and the moving body is movable from the moisture removing means. Provided on the lower side of the roof portion on the rear side in the direction, provided on the lower side of the roof portion on the rear side in the moving direction from the mortar leveling means for spreading and leveling mortar, and the mortar leveling means, A concrete pouring means for pouring concrete, and a concrete compacting means for compacting the concrete, which is provided below the roof portion on the rear side in the moving direction of the concrete pouring means. An all-weather concrete pouring device.