JP6694678B2 - Concrete stacking time management device and concrete stacking time management method - Google Patents

Description

  The present invention relates to a concrete stacking time management device and a concrete stacking time management method.

  Conventionally, when constructing a concrete structure such as a large-scale underground skeleton such as a water purification plant or a subway station, for example, in concrete laying on the same day, the concrete is layered into a plurality of layers to construct the structure. When placing new concrete on concrete that is in the state of advanced setting, if the concrete is placed after an appropriate time interval, the concrete that has started to harden and the concrete that has been placed afterwards will not be integrated, Cold joints may occur.

  Since the cold joint becomes a structurally fragile portion, in order to prevent occurrence of the cold joint, it is necessary to place the stacking time interval for each layer so that the cold joint does not occur. The appropriate stacking time interval before stacking concrete is often planned to be, for example, 2 hours under construction conditions where the temperature is 25 ° C. or lower, and 2 hours 30 minutes under construction conditions where the temperature exceeds 25 ° C. Therefore, a cold joint is more likely to occur when the driving is repeated over such a time interval.

  For example, Patent Document 1 discloses a concrete stacking time management reporting device that reports a stacking time to a person who is at a concrete pouring site.

JP, 2014-219288, A

  However, in the concrete stacking time management device described in Patent Document 1, it is easy for an operator at the concrete placing site to grasp the remaining time of the stacking time, but the progress of the stacking work and the remaining stacking time. The relationship with time is grasped based on the experience and knowledge of the worker and the work is carried out. Therefore, the method of grasping the progress varies depending on the worker.

  The present invention has been made in view of the above points, and a main object thereof is to provide a concrete stacking time management device and a concrete stacking time management method capable of easily grasping the progress of stacking work. Especially.

In order to solve the above problems, in the concrete stacking time management device of the present invention, one layer is divided into a plurality of blocks in the plane direction, and a calculation target in a construction area of concrete in which a plurality of layers are stacked. And the placing of the target block in the one layer including the target block, and then the placing of the target block in the upper layer of the one layer including the target block. The time until the start is the time at which the casting speed of the target block is set and the casting is performed from the first block of the plurality of blocks in the one layer including the target block to the target block . A stacking time prediction unit that predicts from a speed obtained by dividing the distance from the first block to the target block by a time of 1, a placement speed calculation unit that calculates the first time, and the target block Which is the time required to perform placing by dividing the distance for placing from the target block in the one layer including the last block of the plurality of blocks by the placing speed of the target block. The placing time calculation unit that calculates the time of 2 and the predicted stacking time and the preset stacking time are compared, and the upper layer of the one layer including the target block is compared according to the comparison result. A layer thickness designating unit for outputting information designating a layer thickness , wherein the stacking time predicting unit predicts the stacking time by adding the first time and the second time. Is characterized by.

Further, in order to solve the above problems, in the concrete stacking time management method of the present invention, in the stacking time predicting unit, one layer is divided into a plurality of blocks in the plane direction, and the layers are plural. It is the stacking time of the target block that is the calculation target in the construction area of the overlapped concrete, and after the target block is placed in the one layer including the target block, the one including the target block is performed. The time until the start of the casting of the target block in the upper layer of the layer is the casting speed of the target block from the first block of the plurality of blocks in the one layer including the target block to the target block A prediction step of predicting from a speed obtained by dividing the distance from the first block to the target block by a first time that is the time when the driving is performed , A first time calculating step of calculating a time, and a placement time calculating unit sets a distance at which the placement is performed from the target block in the one layer including the target block to the last block of the plurality of blocks, A second time calculating step of calculating a second time, which is a time required for placing, by dividing by the placing speed of the target block, and the layer thickness designating unit, in advance, with the predicted placing time. A step of comparing the set stacking time and outputting information designating a layer thickness of an upper layer of the one layer including the target block according to a comparison result, and the stacking time prediction The section is configured to predict the stacking time by adding the first time and the second time in the prediction step .

  According to the present invention, the concrete stacking time management device includes the stacking time predicting unit that predicts the stacking time of the block from the block placing speed. Thus, according to the present invention, it is possible to provide a concrete stacking time management device and a concrete stacking time management method capable of easily grasping the progress of the stacking work.

It is a figure which shows the construction site of the concrete using the concrete stacking time management apparatus of this embodiment. It is a schematic block diagram of the concrete stacking time management apparatus of this embodiment.

FIG. 1 is a diagram showing a concrete construction site using the concrete stacking time management apparatus of the present embodiment. FIG. 1A shows a plan view of the construction site as seen from above. Further, FIG. 1B shows a cross-sectional view in the longitudinal direction of the construction site shown in the plan view of FIG.
At the concrete construction site, an operator places concrete from the tip of the cylinder in the order of block (1) to block (15) as shown by the thick solid line in FIG. The placement of the first layer shown in () is completed. Subsequently, the worker places concrete from the tip of the cylinder in the order of the block (1) to the block (15), thereby completing the placement of the second layer shown in FIG. 1 (b). Then, the operator places concrete from the tip of the cylinder in the order of the block (1) to the block (9), whereby the placement of the third layer shown in FIG. 1B is completed.

Here, the layer thicknesses of the first layer, the second layer, and the third layer are set according to the plan so as to be the planned layer thickness (predetermined layer thickness). Although FIG. 1 shows an example in which the casting is completed with three layers, the number of layers may be other than three.
In addition, the operator makes sure that the time from the completion of placing the first layer to the completion of placing the second layer falls within a preset stacking time so that cold joints do not occur in each block. It is necessary to place it in. The on-site supervisor uses the concrete stacking time management device to manage the worker so that he or she will place the work within the preset stacking time.

  However, an unexpected problem may occur such as a traffic jam of an agitator car (mixer car) that supplies concrete to the tip of the cylinder, or a problem on the receiving side of the casting. When such a problem occurs, the stacking time between layers may not be within the preset stacking time. Therefore, the concrete stacking time management device of the present embodiment predicts the stacking time between layers, and determines whether or not the predicted stacking time falls within the preset stacking time.

FIG. 2 is a schematic block diagram of a concrete stacking time management device. As shown in FIG. 2, the concrete stacking time management device 10 includes a position information / time information acquisition unit 11, a concrete volume acquisition unit 12, a control unit 13, and an output unit 14.
As an example of the placement of the construction site, n (= 15) blocks × j (j ≧ 2) layers are placed as shown in FIG. Further, it is assumed that each block is divided such that the size of each block is, for example, 2 m × 2 m. It should be noted that each block is a region that is formally provided and is not actually divided at the construction site.
Further, the number of check points for predicting the stacking time between the layers may be two or more, but here, it is assumed that the check points are all 15 blocks × (j−1). Regarding the block, the i-th (i.ltoreq.i.ltoreq.n) th block of the j-th layer will be described as a block (i, j).

  The position information / time information acquisition unit 11 has a GPS (Global Positioning System) function, and the tip of the cylinder used by the worker for placing is in the block (i, j). And the time information when the tip of the tube is at that position. In the present embodiment, the position information and the time information are acquired from the GPS at regular intervals, but the position information is acquired at a timing when a predetermined button of the terminal device carried by the operator who moves the barrel tip is pressed. And time information may be acquired.

  The concrete volume acquisition unit 12 acquires the concrete quantity (volume) from an agitator car (mixer car) that supplies concrete to the cylinder tip. This concrete quantity represents the quantity per unit time of the pump that discharges concrete from the tip of the cylinder. That is, since the discharge amount per unit time of the pump mounted on the agitator vehicle is determined for each agitator vehicle, if the agitator vehicle can be identified, the concrete quantity can be grasped.

  The control unit 13 includes a placement speed calculation unit 21, a placement time calculation unit 22, a placement time prediction unit 23, and a layer thickness designation unit 24.

The placement speed calculation unit 21 calculates the time t (i, j) during which the worker from block (1, j) to block (i, j) moved the cylinder tip. In addition, the placement speed calculation unit 21 calculates the linear distance L (i, j) from the block (1, j) to the block (i, j).
The placement speed calculation unit 21 calculates the placement speed v (i, j) by dividing the distance L (i, j) by the time t (i, j).

The placement time calculation unit 22 subtracts the distance L (i, j) calculated by the placement speed calculation unit 21 from the linear distance L from the block (1, j) to the block (15, j) to obtain the block ( Calculate the distance L (15-i, j) from i, j) to block (15, j).
The placement time calculation unit 22 divides the distance L (15-i, j) by the placement speed v (i, j) calculated by the placement speed calculation unit 21, and the operator blocks the remaining blocks. Calculate the time t (15-i, j) required to move.

The placement time prediction unit 23 adds the time t (i, j) calculated by the placement speed calculation unit 21 and the time t (15-i, j) calculated by the placement time calculation unit 22, and adds them. The overhead time tol for moving from the block (15, j) to the block (1, j + 1) is added at a later time to arrive at the start position of the layer one layer above the j layer. , J), the prediction time t (i, j) is predicted.
That is, the stacking time predicting unit 23 calculates the first time of placing one layer from the first block (1, j) of the plurality of blocks to the target block (i, j), and calculates one time. The second time required for placing the layer from the target block (i, j) to the last block (i, 15) of the plurality of blocks is calculated, and the first time and the second time are added together. Predict the stacking time t (i, j).

The layer thickness designating section 24 compares the stacking time predicted by the stacking time predicting section 23 with a reference time (preset stacking time) to specify the layer thickness. Here, the reference time is a time preset according to the planned layer thickness of each layer, for example, 120 minutes.
When the stacking time t (i, j) is longer than the reference time, the layer thickness designation unit 24 determines that the driving is progressing at a slow pace, and designates a layer thickness thinner than the preset planned layer thickness. To do. In order to reduce the layer thickness, it is necessary to move the barrel tip quickly, so the operator who moves the barrel tip moves the barrel tip earlier according to this designation.
If the predicted stacking time is shorter than the preset stacking time, the layer thickness designation unit 24 determines that the driving is progressing at a fast pace and is thicker than the preset planned layer thickness. Specify the layer thickness. In order to increase the layer thickness, it is necessary to move the cylinder tip slowly. Therefore, the operator who moves the cylinder tip moves the cylinder tip later according to this designation.
Further, when the predicted stacking time is substantially equal to the preset stacking time, the layer thickness designating unit 24 determines that the driving is progressing at an appropriate pace, and sets the preset planned layer thickness. As is, ie, specify the current layer thickness. The case of being substantially equal is, for example, the case of being within a range based on a preset stacking time (for example, 120 minutes-n minutes). The operator who moves the cylinder tip according to this designation maintains the movement pace of the cylinder tip.
For example, in the present embodiment, when the first layer is thicker than the planned layer thickness, it is possible to adjust the second layer to be thinner than the planned layer thickness so that the placement is completed in the third layer. Is. However, if both the first and second layers are thinner than the planned layer thickness, the third layer is placed with the same area as the first and second layers, and the planned third layer is 4 It is possible to adjust the driving so that the driving is performed in the fourth layer and the driving is completed in the fourth layer.

The output unit 14 notifies the worker that the worker should drive the layer with the layer thickness designated by the layer thickness designation unit 24. A display, a speaker, or the like, for example, is connected to the output unit 14 as a notification device not shown in FIG. The output unit 14 notifies the worker via this notification device that the worker should drive the layer with the layer thickness designated by the layer thickness designation unit 24.
By displaying the layer thickness designated by the layer thickness designation unit 24 at each check point, the operator can easily grasp the progress of the driving, and the stacking time can be improved by accelerating or delaying the movement of the cylinder tip. It is possible to carry out the work of placing so that it is within the reference time. For example, when a notification for designating the layer thickness is given to the terminal device of the worker, the worker can operate the cylinder tip movement based on the contents of the notification. In addition, a large display that can be viewed by the operator may be installed to notify the operator. Further, when a notification is given to the terminal device of the site supervisor, the site supervisor can give an instruction to the worker who moves the tip of the cylinder based on the content of the report.
The concrete stacking time management device 10 may have a notification device.
The output unit 14 may use a terminal device owned by the worker or a terminal device owned by the site supervisor as a notification device to notify the information indicating the stacking time of each block.

  As described above, in the concrete stacking time management device 10 of the present invention, one layer is divided into a plurality of blocks in the plane direction, and is a calculation target in a construction area of concrete in which a plurality of layers are stacked. The stacking time predicting unit 23 that predicts the stacking time of the target block from the stacking speed of the target block is compared with the predicted stacking time and the preset stacking time, and the layer is determined according to the comparison result. And a layer thickness designating section 24 for outputting information designating the thickness.

  Thus, according to the present invention, it is possible to provide a concrete stacking time management device and a concrete stacking time management method capable of easily grasping the progress of the stacking work.

  Although one embodiment of the present invention has been described in detail above with reference to the drawings, the specific configuration is not limited to the above, and various design changes and the like without departing from the gist of the present invention. It is possible to

  10 ... Concrete stacking time management device, 11 ... Position information / time information acquisition unit, 12 ... Concrete volume acquisition unit, 13 ... Control unit, 14 ... Output unit, 21 ... Placing speed calculation unit, 22 ... Placing time calculation Part, 23 ... Laminating time prediction part, 24 ... Layer thickness designation part

Claims (2)

One layer is divided into a plurality of blocks in the plane direction, and the one layer including the target block is the stacking time of the target block that is the calculation target in the construction area of the concrete in which the plurality of layers are stacked. The time from the placing of the target block in to the start of the placing of the target block in the upper layer of the one layer including the target block is the placement speed of the target block Obtained by dividing the distance from the first block to the target block by a first time, which is the time when casting is performed from the first block of the plurality of blocks in the one layer including the block to the target block. A stacking time prediction unit that predicts from the speed that is
A placing speed calculation unit for calculating the first time,
The time required to perform the placement by dividing the distance from the target block in the one layer including the target block to the last block of the plurality of blocks by the placement speed of the target block. A placement time calculation unit that calculates a second time that is
A layer thickness designation unit that compares the predicted stacking time with a preset stacking time, and outputs information that specifies the layer thickness of the upper layer of the one layer including the target block according to the comparison result. When,
Equipped with
The stacking time prediction unit adds the first time and the second time to predict the stacking time.
A concrete stacking time management device characterized in that The stacking time predicting unit is a stacking time of a target block that is a calculation target in a construction area of concrete in which one layer is divided into a plurality of blocks in the plane direction, and the target is the target. The time from the placement of the target block in the one layer including the blocks to the start of the placement of the target block in the upper layer of the one layer including the target blocks is set to the placement of the target block. From the first block to the target block according to a first time, which is a setting speed and is a time when the casting is performed from the first block of the plurality of blocks in the one layer including the target block to the target block A prediction step of predicting from the speed obtained by dividing the distance of
A placement time calculation unit, a first time calculation step of calculating the first time,
A placement time calculating unit divides a distance at which placement is performed from the target block in the one layer including the target block to the last block of the plurality of blocks by a placement speed of the target block, A second time calculating step for calculating a second time which is a time required for placing,
The layer thickness designation unit compares the predicted stacking time with a preset stacking time, and outputs information designating the layer thickness of the upper layer of the one layer including the target block according to the comparison result. Designated process to output,
Equipped with
In the prediction step, the stacking time prediction unit adds the first time and the second time to predict the stacking time.
A concrete stacking time management method characterized by the above.

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