JP6891039B2 - Concrete construction management system - Google Patents

Description

The present invention relates to a technique of a concrete construction management system for managing concrete placing work.

Conventionally, the technology of a system capable of notifying the weather information of the work area of an outdoor worker has been known. For example, as described in Patent Document 1.

In Patent Document 1, data on the weather in a specific area (work area) is observed, weather information in the work area is predicted from the observed data, and the weather information is provided to a specific target person (outdoor worker). A weather information notification system for notification is disclosed. With such a system, the outdoor worker can grasp the weather information (for example, rain, snow, wind, etc.) in the work area (work area).

However, with the technique described in Patent Document 1, although the outdoor worker can grasp the weather information in the work area, it is not easy to determine whether or not the outdoor work plan needs to be changed based on the weather information. There wasn't.

For example, when placing concrete, the quality (strength) may deteriorate due to the rain (water) mixed in the concrete, so it is necessary to review the work plan according to the weather information (especially precipitation). There is. However, even if the amount of precipitation in the work area can be grasped, it is up to the site manager to decide whether or not the work plan needs to be reviewed (for example, whether the casting should be interrupted or continued). Therefore, the judgment is not easy, and the objective judgment is not always made.

Japanese Unexamined Patent Publication No. 2016-80552

The present invention has been made in view of the above circumstances, and the problem to be solved is to provide a concrete construction management system capable of easily reviewing the concrete placing work plan based on the amount of precipitation. To provide.

The problem to be solved by the present invention is as described above, and next, the means for solving this problem will be described.

That is, in claim 1, the limit water amount acquisition means for acquiring the limit water amount, which is the limit amount of water allowed to be mixed, and the precipitation amount at the construction site are acquired for the concrete used at the construction site. Based on the precipitation acquisition means and the precipitation acquired by the precipitation acquisition means, the amount of mixed water, which is the amount of water mixed in the concrete per unit time, is calculated in the concrete construction range at the construction site. Based on the mixed water amount calculation means, the limit water amount calculated by the limit water amount acquisition means, and the mixed water amount calculated by the mixed water amount calculation means, there is a margin until the mixed water amount reaches the limit water amount. It is provided with a margin calculation means for calculating a margin, which is a degree.

The second aspect of the present invention further includes a precipitation measuring device for measuring the precipitation at the construction site, and the precipitation acquiring means measures the precipitation at the construction site based on the measured value by the precipitation measuring device. It is what you get.

In claim 3, the notification device arranged at the construction site and the notification means for notifying the margin calculated by the margin calculation means by using the notification device are further provided.

In claim 4, the margin includes the time until the mixed water amount reaches the limit water amount.

In claim 5, the margin includes the amount of concrete that can be cast before the amount of mixed water reaches the limit amount of water.

As the effect of the present invention, the following effects are exhibited.

In claim 1, it is possible to easily review the plan of concrete placing work based on the amount of precipitation.

In claim 2, a more appropriate margin can be calculated by calculating the margin based on the amount of precipitation at the actual construction site.

In claim 3, the work can be performed while confirming the margin at the construction site.

In claim 4, the plan of the casting work can be easily reviewed based on the workable time.

In claim 5, the plan of the placing work can be easily reviewed based on the amount of concrete that can be placed.

The block diagram which shows the structure of the concrete construction management system which concerns on one Embodiment of this invention. A flowchart showing the operation of the concrete construction management system.

First, the configuration of the concrete construction management system 1 according to the embodiment of the present invention will be described with reference to FIG.

The concrete construction management system 1 calculates a margin, which will be described later, in order to ensure the quality of concrete when there is precipitation (or when precipitation is expected). The concrete construction management system 1 mainly includes a precipitation measuring device 10, a control device 20, an input device 30, and a notification device 40.

The precipitation measuring device 10 is for measuring the precipitation. The precipitation measuring device 10 includes a container that receives rain or snow, a detection unit that detects a change (rise) in the transition of the container, a calculation unit that converts the change in water level into precipitation, and the like. The precipitation measuring device 10 according to the present embodiment measures the amount of precipitation (mm / h) per hour.

The control device 20 controls the concrete construction management system 1. The control device 20 is mainly composed of an arithmetic processing unit such as a CPU, a storage device such as a RAM or ROM, an input / output device such as an I / O, and the like. Functionally, the control device 20 includes a limit water amount acquisition means 21, a precipitation amount acquisition means 22, a mixed water amount calculation means 23, a margin calculation means 24, and a notification means 25. The functions of the limit water amount acquisition means 21 and the like will be described later together with the operation mode of the control device 20.

The input device 30 is for inputting various information to the control device 20. The input device 30 can be configured by, for example, a keyboard, a touch panel, operation buttons, and the like.

The notification device 40 is for notifying various types of information. The notification device 40 can be configured by a lamp capable of emitting light, a liquid crystal monitor, a touch panel, or the like.

Next, the operation mode of the concrete construction management system 1 configured as described above will be described.

If it rains or snows during the outdoor concrete placing work, the rain or snow will be mixed into the concrete. However, due to the quality (strength) of concrete, there is an upper limit to the amount of water (rain and snow) that can be mixed into the concrete. Therefore, the concrete construction management system 1 according to the present embodiment determines and notifies how much margin (margin) there is before the water mixed in the concrete reaches the upper limit. The site manager or the like who receives the notification can easily review the casting work plan (work contents, procedures, etc.) based on the margin.

The operation of the concrete construction management system 1 will be described in detail below.

First, the precipitation measuring device 10 is installed at the site (working place) where the concrete placing work is performed. This makes it possible to measure the actual amount of precipitation at the place where the casting work is performed. When the concrete placing work is started, the operation of the concrete construction management system 1 (see FIG. 2) is started.

In step S101 of FIG. 2, the limit water amount acquisition means 21 of the control device 20 acquires the “limit water amount”. Here, the limit amount of water is the limit amount of water that can be mixed with the concrete (ready-mixed concrete) placed at the site. The "limit amount of water that can be mixed" means the limit amount of water that does not seem to have a quality problem even if it is mixed with concrete. Hereinafter, the method for obtaining the limit water amount will be specifically described.

The control device 20 (limit water amount acquisition means 21) is set with a limit value of water (hereinafter, simply referred to as “unit limit water amount”) that allows mixing with ^{a unit amount (1 m 3) of concrete.} There is. The unit limit water amount can be set from various viewpoints. For example, the upper limit of the permissible error (for example, 1% of the unit water amount) for the unit water amount of concrete ( ^{water amount per 1 m 3} : kg / m ^{3) can be set as the unit limit water amount.} Further, the unit limit water amount can be set to the amount of water such that the set slump of concrete has an upper limit of the allowable range (for example, +2.5 cm or the like). The unit limit water amount can be input to the control device 20 (limit water amount acquisition means 21) by using the input device 30.

The control device 20 (limit water amount acquisition means 21) can calculate (acquire) the limit water amount (kg) by multiplying the unit limit water amount by the volume of concrete placed at the site.

Next, in step S102, the precipitation acquisition means 22 of the control device 20 determines whether or not there is precipitation (rain, snow, etc.). Specifically, the precipitation acquisition means 22 acquires the precipitation measured by the precipitation measuring device 10. The precipitation acquisition means 22 can determine the presence or absence of precipitation based on the precipitation measured by the precipitation measuring device 10. That is, the precipitation acquisition means 22 can determine that there is precipitation when the precipitation is greater than 0.

When the control device 20 (precipitation amount acquisition means 22) determines that there is no precipitation, the process of step S102 is performed again. Further, when the control device 20 (precipitation amount acquisition means 22) determines that there is precipitation, the process proceeds to step S103.

Next, in step S103, the mixed water amount calculating means 23 of the control device 20 calculates the “mixed water amount”. Here, the amount of mixed water (kg) is the total amount of water mixed in the concrete at the site per unit time (1 minute in this embodiment). In other words, the amount of mixed water is the sum of the amount of precipitation in the area where concrete is constructed, per unit time. Hereinafter, a method for calculating the amount of mixed water will be specifically described.

The mixed water amount calculation means 23 acquires the amount of precipitation at the site from the precipitation amount acquisition means 22.

Next, the mixed water amount calculation means 23 calculates the mixed water amount from the amount of precipitation at the site. The amount of mixed water is calculated from the amount of precipitation obtained from the precipitation acquisition means 22, the area of the area where concrete is constructed, the specific gravity of water, and the like. Specifically, it is obtained by dividing the value (weight) obtained by multiplying the volume of rain or the like that falls in the area where concrete is constructed in one hour by the density of water by 60 (minutes).

Next, in step S104, the margin calculation means 24 of the control device 20 calculates the “margin”. Here, the margin is a degree indicating a margin until the amount of mixed water reaches the limit amount of water. In the present embodiment, the margin calculation means 24 calculates, as the margin, the time until the mixed water amount reaches the limit water amount and the amount (area) of concrete that can be cast by that time.

Specifically, the margin calculation means 24 divides the limit water amount acquired by the limit water amount acquisition means 21 by the mixed water amount calculated by the mixed water amount calculation means 23 until the mixed water amount reaches the limit water amount. Calculate the time (minutes) of.

Further, the margin calculation means 24 can cast concrete per unit time based on the concrete casting speed (volume of concrete that can be cast per unit time) and the volume of concrete per ^{unit area (for example, 1 m 2).} Calculate the area of concrete. The concrete placing speed can be grasped in advance from the capacity of the pump truck and the like. The margin calculation means 24 multiplies the area of concrete that can be cast per unit time by the time (minutes) until the amount of mixed water reaches the limit amount of water, so that the amount of mixed water reaches the limit amount of water. Calculate the amount (area) of concrete that can be installed.

Next, in step S105, the notification means 25 of the control device 20 has a margin calculated in step S104 (that is, the time until the mixed water amount reaches the limit water amount, and the amount of concrete that can be cast by that time (that is,). Area)) is notified. Specifically, the notification means 25 transmits information regarding the margin to the notification device 40, and causes the notification device 40 to notify the margin.

For example, when the notification device 40 is a lamp capable of emitting light, the margin can be notified to the on-site manager or the like by causing the lamp to emit light with an appropriate color or light emission pattern. When the notification device 40 is a liquid crystal monitor, the margin can be notified to the on-site manager or the like by displaying the specific content (numerical value or the like) of the margin.

The site manager or the like who has confirmed the margin can easily review the concrete placing work plan based on the margin. For example, if it is known from the time until the amount of mixed water reaches the limit amount of water and the amount (area) of concrete that can be cast by that time, the casting work is completed by the time the amount of mixed water reaches the limit amount of water, concrete. Since there is no problem with the quality of the concrete, the casting work can be continued. On the other hand, if it is found that the casting work is not completed by the time the mixed water amount reaches the limit water amount, the work plan can be changed and the casting work can be stopped. As a result, the quality of concrete can be ensured.

By repeating the process shown in FIG. 2 as needed, the plan of the casting work can be reviewed in consideration of the latest information (precipitation).

As described above, the concrete construction management system 1 according to the present embodiment is
The limit water amount acquisition means 21 for acquiring the limit water amount, which is the limit amount of water allowed to be mixed with the concrete used at the construction site, and the limit water amount acquisition means 21.
Precipitation acquisition means 22 for acquiring precipitation at the construction site, and
A mixed water amount calculating means for calculating the mixed water amount, which is the amount of water mixed in the concrete per unit time in the concrete construction range at the construction site, based on the precipitation amount acquired by the precipitation amount acquiring means 22. 23 and
A margin that is the degree of margin until the mixed water amount reaches the limit water amount based on the limit water amount calculated by the limit water amount acquisition means 21 and the mixed water amount calculated by the mixed water amount calculation means 23. With the margin calculation means 24 for calculating
Is provided.

With such a configuration, it becomes possible to easily review the plan of the concrete placing work based on the amount of precipitation. That is, since the plan of the casting work can be reviewed using the margin as an index, it is possible to make an objective judgment regardless of the subjectivity and ability of the site manager or the like. Moreover, since the work plan can be reviewed based on an objective judgment, the reliability of the work can be improved.

In addition, the concrete construction management system 1
A precipitation measuring device 10 for measuring the precipitation at the construction site is further provided.
The precipitation acquisition means 22
The amount of precipitation at the construction site is acquired based on the value measured by the precipitation measuring device 10.

With this configuration, a more appropriate margin can be calculated by calculating the margin based on the amount of precipitation at the actual construction site.

In addition, the concrete construction management system 1
The notification device 40 arranged at the construction site and
Using the notification device 40, the notification means 25 for notifying the margin calculated by the margin calculation means, and
Is further provided.

With this configuration, the work can be performed while checking the margin at the construction site. As a result, it is possible to quickly review the plan of the casting work based on the amount of precipitation.

In addition, in the above margin,
The time until the mixed water amount reaches the limit water amount is included.

With such a configuration, it is possible to easily review the plan of the casting work based on the workable time.

In addition, in the above margin,
The amount of concrete that can be cast before the amount of mixed water reaches the limit amount of water is included.

With this configuration, it is possible to easily review the casting work plan based on the amount of concrete that can be cast.

Although the embodiments have been described above, the present invention is not limited to the above configuration, and various modifications can be made within the scope of the invention described in the claims.

For example, the method for measuring precipitation by the precipitation measuring device 10 is not limited to that according to the present embodiment as long as it can measure precipitation at a concrete construction site.

Further, the notification method by the notification device 40 can be arbitrarily changed. For example, by causing the lamp to emit light before the amount of mixed water reaches the limit amount of water, it is possible to sensuously notify the administrator or the like that the amount of mixed water has approached the limit amount of water. Further, the notification device 40 may be configured to notify using not only lamps and displays but also sounds and vibrations.

Further, in the present embodiment, the margin is calculated based on the amount of precipitation measured during the concrete placing work, but for example, in advance (before the placing work is performed). It is also possible to calculate the margin in). In this case, the precipitation acquisition means 22 can acquire a predicted value of precipitation by referring to, for example, the weather forecast at the construction site. The predicted value of precipitation can be manually input by the input device 30 or can be obtained via the Internet.

In this way, by calculating the margin in advance, the work plan can be reviewed in advance. As a result, it is possible to avoid a plan change after the start of work, and it is possible to improve work efficiency. For example, in order to secure a margin, it is possible to take measures such as setting a large concrete strength (nominal strength) in advance and setting a hard slump.

Further, the amount of precipitation used in calculating the margin (precipitation amount obtained from the precipitation amount acquisition means 22, see step S103) changes from moment to moment. Therefore, as the amount of precipitation when calculating the margin, it is possible to use an arbitrary value such as the average value or the maximum value of the amount of precipitation during the concrete placing work. For example, if the average value of precipitation during casting work is used, it is expected that the margin will be a reasonable value. In addition, if the maximum value of precipitation during casting work is used, the margin is reduced, so that the quality of concrete can be ensured more reliably.

Further, in the present embodiment, the time required for the amount of mixed water to reach the limit amount of water and the amount (area) of concrete that can be cast up to that point are illustrated as a margin, but the present invention is not limited to this. Any value can be used as the margin. For example, it is possible to set the amount of precipitation until the amount of mixed water reaches the limit amount of water as a margin.

1 Concrete construction management system 10 Precipitation measurement device 20 Control device 21 Limit water amount acquisition means 22 Precipitation amount acquisition means 23 Mixed water amount calculation means 24 Margin calculation means 25 Notification means 30 Input device 40 Notification device

Claims (5)

A means for obtaining the limit amount of water, which is the limit amount of water that can be mixed with the concrete used at the construction site, and a means for obtaining the limit amount of water.
Precipitation acquisition means for acquiring precipitation at the construction site and
Based on the precipitation amount acquired by the precipitation amount acquisition means, the mixed water amount calculation means for calculating the mixed water amount, which is the amount of water mixed in the concrete per unit time, in the concrete construction range at the construction site. ,
Based on the limit water amount calculated by the limit water amount acquisition means and the mixed water amount calculated by the mixed water amount calculation means, the margin degree which is the degree of margin until the mixed water amount reaches the limit water amount is calculated. With the means of calculating the margin
Concrete construction management system equipped with. Further equipped with a precipitation measuring device for measuring the precipitation at the construction site,
The precipitation acquisition means is
Based on the value measured by the precipitation measuring device, the precipitation at the construction site is acquired.
The concrete construction management system according to claim 1. The notification device placed at the construction site and
Using the notification device, the notification means for notifying the margin calculated by the margin calculation means, and the notification means.
Further equipped,
The concrete construction management system according to claim 1 or 2. In the above margin,
The time until the mixed water amount reaches the limit water amount is included.
The concrete construction management system according to any one of claims 1 to 3. In the above margin,
The amount of concrete that can be cast before the amount of mixed water reaches the limit amount of water is included.
The concrete construction management system according to any one of claims 1 to 4.

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