Work management method and work management apparatus

Abstract

To provide a work management method and a work management device for properly managing an execution schedule of concrete placing work in consideration of weather on the day of work.SOLUTION: A processor 21 acquires first data related to an expected amount of rainfall in a work place on an execution day before the execution day of concrete placing work, and sets a first time corresponding to the expected amount of rainfall indicated by the first data as an execution time of the work when the expected amount of rainfall indicated by the first data is equal to or less than a first threshold. Further, the processor 21 acquires, on the implementation day of the work, the second data relating to the expected amount of rainfall at the work site on the implementation day, calculates the weight increase amount due to rainwater per unit volume of the concrete body during the implementation of the work when the expected amount of rainfall indicated by the second data is equal to or less than the second threshold, and executes the warning processing when the weight increase amount is equal to or more than the reference value or when the elapsed time from the implementation start time point of the work exceeds the implementation time of the work.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a work management method and a work management device, and more particularly to a work management method and a work management device used to manage concrete pouring work at an outdoor work site. [Background technology]

[0002] When pouring concrete at an outdoor site, the weather, particularly the presence or absence of rain and the amount of rainfall, affects the progress of the work and the quality of the poured concrete (specifically, the strength of the structure formed by the hardened concrete). Therefore, concrete pouring work is usually carried out when it is not raining, and a work manager such as a site supervisor checks the weather forecast information for the scheduled work day and determines whether concrete pouring work can be carried out at the site on that day. There is also a known method of using a computer to assist in such judgment (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2022-065519 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in recent years, sudden changes in weather due to abnormal weather have become more frequent, and even if it is determined that concrete pouring can be carried out on the work day based on weather information obtained up to the day before, the actual rainfall on the work day may exceed the forecast up to the day before. Furthermore, there is a possibility that concrete pouring may be hit by sudden heavy rain. In such cases, concrete pouring must be suspended, but if the suspension is not timed appropriately, measures such as curing the poured concrete may be delayed.

[0005] Therefore, the present invention has been made in consideration of the above-mentioned problems, and its purpose is to provide a work management method and work management device for appropriately managing the implementation schedule of concrete pouring work taking into account the weather (particularly, rainfall) on the work day. [Means for solving the problem]

[0006] The above problem is solved by the work management method of the present invention, which is a work management method for pouring concrete at an outdoor work site, in which a processor acquires first data regarding the expected amount of rainfall at the work site on the day the work is to be performed, before the day the work is to be performed, and if the expected amount of rainfall indicated by the first data is equal to or less than a first threshold, sets the work performance time to a first time period corresponding to the expected amount of rainfall indicated by the first data, acquires second data regarding the expected amount of rainfall at the work site on the day the work is to be performed, and if the expected amount of rainfall indicated by the second data is equal to or less than a second threshold, calculates the amount of weight increase due to rainwater per unit volume of the concrete body composed of the concrete poured during the work during the work, and executes a warning process if the amount of weight increase is equal to or greater than a standard value or if the time elapsed since the start of the work exceeds the above-mentioned performance time. According to the above method, the concrete pouring work schedule can be appropriately managed even if the weather on the work day is rainy.

[0007] In addition, in the work management method of the present invention, if the second threshold is greater than the first threshold and the expected rainfall indicated by the first data exceeds the second threshold, the processor may execute a notification process to notify the postponement of work execution. With the above configuration, before the concrete pouring work is to be carried out, it is possible to appropriately determine whether the work can be carried out based on the expected rainfall at the work site on the day the work is to be carried out, and to notify the workers and others of the result of the determination.

[0008] In addition, in the work management method of the present invention, in a case where the expected rainfall indicated by the first data exceeds a first threshold value and is equal to or less than a second threshold value, when the processor receives input information before the implementation date to allow the work to be carried out on the implementation date, it may set the work implementation time to a first time period corresponding to the expected rainfall amount indicated by the first data. With the above configuration, even if the expected rainfall at the work site on the day of concrete pouring exceeds the first threshold before the day of concrete pouring work, if the expected rainfall is equal to or less than the second threshold and work execution is permitted, the work will be planned to be executed on the day of execution and the work execution time will be set. As a result, even if there is some rain on the day of work, the concrete pouring work can be carried out while more appropriately managing the work execution schedule, thereby shortening the construction period.

[0009] In the work management method of the present invention, when the expected rainfall indicated by the second data exceeds a second threshold on the work execution date, the processor may execute a notification process to notify that the work execution will be postponed. With the above configuration, on the day concrete pouring work is to be carried out, it is possible to appropriately determine whether or not the work can be carried out based on the amount of rainfall expected at the work site on that day, and to notify the workers and others of the result of this determination.

[0010] In addition, in the work management method of the present invention, if the expected rainfall indicated by the second data exceeds the expected rainfall indicated by the first data, the processor may change the work execution time on the execution day from the first hour to a second hour corresponding to the expected rainfall indicated by the second data. With the above configuration, if the amount of rainfall at the work site predicted on the day of concrete pouring work exceeds the amount of rainfall predicted before the work day, the work execution time can be reset, thereby making it possible to properly manage the work execution schedule (especially the plan for the day the work will be executed).

[0011] In addition, in the work management method of the present invention, the processor may acquire first data on the day before the work date, calculate a first time period according to the amount of rainfall indicated by the first data, and set the first time period as the work execution time. With the above configuration, the work execution time (first hour) is set based on the expected rainfall data (first data) obtained the day before the concrete pouring work is to be carried out, thereby enabling the creation of a more reasonable work execution schedule.

[0012] In addition, in the work management method of the present invention, the processor may acquire, on the day of execution, a measurement value corresponding to the amount of rainfall that falls at the work location within a specified time period while the work is being performed, and calculate the amount of weight increase based on the measurement value. With the above configuration, if it rains on the day concrete pouring work is to be carried out, the amount of rainfall at the work site can be actually measured while the work is being carried out, and the measurement results can be taken into consideration to make an appropriate decision as to whether or not to continue the work.

[0013] In the work management method of the present invention, the processor may repeatedly acquire heavy rain determination information for determining whether heavy rain will occur on the work day, and each time it acquires the heavy rain determination information, it may determine whether heavy rain will occur at the work site on the work day based on the heavy rain determination information.The processor may also execute a notification process to notify the determination result when it is determined that heavy rain will occur at the work site. With the above configuration, if a sudden heavy rain is predicted on the day concrete pouring work is to be carried out, it is possible to appropriately determine whether or not to continue the work based on the predicted results.

[0014] Furthermore, the above-mentioned problem is solved by the work management device of the present invention, which is a work management device for managing the work of pouring concrete at an outdoor work site, and is equipped with a processor, wherein the processor acquires first data regarding the expected rainfall at the work site on the day the work is to be performed, and if the expected rainfall indicated by the first data is equal to or less than a first threshold, sets the work performance time to a first time period corresponding to the expected rainfall indicated by the first data, acquires second data regarding the expected rainfall at the work site on the day the work is to be performed, and if the expected rainfall indicated by the second data is equal to or less than a second threshold, calculates the weight increase due to rainwater per unit volume of the concrete body composed of the concrete poured during the work during the work, and executes a warning process if the weight increase is equal to or greater than a standard value or if the elapsed time since the start of the work exceeds the above-mentioned performance time. By using the above device, the concrete pouring work schedule can be properly managed even if the weather on the day of work is rainy. [Effects of the Invention]

[0015] According to the present invention, the work schedule for concrete pouring work can be appropriately managed even if the weather on the work day is rainy. [Brief explanation of the drawings]

[0016] [Figure 1] FIG. 1 is a diagram showing an overview of the management of concrete pouring work. [Figure 2] FIG. 1 is a diagram illustrating a configuration of a work management system. [Figure 3] FIG. 10 is a diagram showing a process flow executed on the day before the work execution date. [Figure 4] FIG. 10 is a diagram showing a processing flow executed on the day when work is to be performed. [Figure 5] FIG. 1 illustrates an instrument used to measure rainfall in the field. DETAILED DESCRIPTION OF THE INVENTION

[0017] <<About one embodiment of the present invention>> Hereinafter, one embodiment of the present invention (hereinafter referred to as the present embodiment) will be described with reference to the accompanying drawings.

[0018] In this specification, the concept of "device" includes a single device that performs a specific function, as well as a combination of multiple devices that are distributed and exist independently but work together (in cooperation) to perform a specific function.

[0019] Furthermore, the basic data processing technologies (communication / transmission technologies, data acquisition technologies, data recording technologies, data processing / analysis technologies, image processing technologies, visualization technologies, etc.) required to realize the contents of this embodiment are well-known technologies, and therefore explanations thereof will be omitted.

[0020] This embodiment relates to a technology for managing the work of pouring concrete at an outdoor work site (hereinafter also referred to as a site), for example, a technology for managing the work of pouring concrete to construct foundations, foundation beams, and earthen floors in building construction work. In this embodiment, the building may be a residence, a detached house, or a single dwelling unit in an apartment building. The building may also be a building other than a residence, such as a store, an office, a commercial facility such as a movie theater or a department store, a public facility such as a hospital or a school, a factory, or a building for various other purposes.

[0021] In this embodiment, the "amount of rainfall" indicates the amount of rainfall (precipitation) that falls within a unit time, and more specifically, is expressed as the depth of rainwater at a location where rainwater accumulates for one hour, for example.

[0022] (Overview of concrete pouring work management) An overview of the management of concrete pouring work in this embodiment will be described. Concrete pouring work is carried out for the purpose of installing a building's foundation, foundation beams, or earth floor, etc., and concrete bodies are constructed by pouring concrete in predetermined locations on site. A concrete body is made of concrete poured during concrete pouring work, and when the concrete hardens, it forms structures such as the foundation, foundation beams, and earth floor. In this embodiment, the concrete body is assumed to have a rectangular parallelepiped shape and to have a width, a depth, and a height.

[0023] When constructing a building, a work schedule is drawn up for a series of tasks, including concrete pouring, as shown in Figure 1. Specifically, the dates on which the tasks will be performed and the work hours (start and end times) for each task are scheduled. Workers (including construction companies) in charge of each task perform their tasks according to the schedule, but outdoor work is subject to weather conditions, and the work schedule may change depending on the weather (e.g., rainfall). For example, if the weather at the site on the day of the work is expected to rain and the amount of rainfall is expected to exceed a certain value (threshold) as of the day before the work is to be performed, the work may be postponed.

[0024] Furthermore, as shown in Figure 1, in cases where the amount of rainfall is relatively low, concrete pouring work may be carried out. In this case, if the concrete body is exposed to rain, the amount of rainwater that penetrates into the concrete body increases depending on the time that has passed since the concrete body was constructed, causing the weight of the concrete body to increase. If the increase in weight of the concrete body due to the infiltration of rainwater exceeds a certain value, this may have a negative impact on the construction quality of the concrete body, particularly its strength, so it is necessary to provide the concrete with appropriate curing and suspend work before this point.

[0025] Furthermore, as shown in Figure 1, if the weather suddenly changes during concrete pouring work, such as in a torrential downpour, and heavy rain falls on the construction site in a short period of time, rainwater may suddenly seep into the concrete body. In this case, if the concrete body is exposed to rain, the water content of the concrete body increases rapidly, which, as mentioned above, may affect the construction quality of the concrete body, particularly its strength. Therefore, if the amount of rainfall exceeds a certain value (threshold) during concrete pouring work, the concrete body must be properly cured and the work must be suspended.

[0026] As described above, concrete pouring work must be managed appropriately according to the weather, particularly the amount of rainfall, on the day the work is to be carried out. Therefore, in this embodiment, a work management system, which will be described later, is used to manage concrete pouring work appropriately and smoothly. In other words, construction companies and site supervisors can utilize the support of the work management system to manage a series of tasks, including concrete pouring.

[0027] (Work management system) Next, a work management system according to this embodiment (hereinafter referred to as work management system S) will be described with reference to FIG. 2, the work management system S is configured to include a work management device 10, a database server 12, a user terminal 14 used by a user, a data providing device 16, and a rainfall sensor 18 installed at the work site. Here, a "user" refers to a user of the work management device 10, and more specifically, a person who manages concrete pouring work by utilizing the functions of the work management device 10 through the user terminal 14. Although FIG. 2 shows one user terminal 14, in reality, the number of user terminals 14 corresponds to the number of users.

[0028] The work management apparatus 10 is composed of a computer, such as a server computer. The work management apparatus 10 may be composed of a single computer or multiple computers distributed in parallel. The server computer (hereinafter also referred to as a server) constituting the work management apparatus 10 may be a server for a cloud service, specifically, a server for an ASP (Application Service Provider), SaaS (Software as a Service), PaaS (Platform as a Service), or IaaS (Infrastructure as a Service). In this case, when necessary information is input into a client terminal, the server performs various processes and calculations based on the input information, and the calculation results are output on the client terminal side. This allows the functions of the server, which is the work management apparatus 10, to be used on the client terminal side.

[0029] As shown in FIG. 2, the computer that constitutes the work management device 10 includes a processor 21, a memory 22, a storage 23, and a communication interface 24.

[0030] The processor 21 is composed of, for example, a CPU (Central Processing Unit), an MPU (Micro-Processing Unit), an MCU (Micro Controller Unit), a GPU (Graphics Processing Unit), a DSP (Digital Signal Processor), a TPU (Tensor Processing Unit), an NPU (Neural network Processing Unit), or an ASIC (Application Specific Integrated Circuit). The memory 22 is configured by semiconductor memories such as a ROM (Read Only Memory) and a RAM (Random Access Memory).

[0031] The storage 23 may be configured, for example, by a flash memory, a hard disc drive (HDD), a solid state drive (SSD), a flexible disc (FD), a magneto-optical disc (MO disc), a compact disc (CD), a digital versatile disc (DVD), a secure digital card (SD card), or a universal serial bus memory (USB memory). The storage 23 may be built into the computer main body that constitutes the work management device 10, or may be attached to the computer main body in an external format.

[0032] The communication interface 24 may be configured, for example, by a network interface card or a communication interface board, etc. The computer that constitutes the work management device 10 can communicate data with other devices connected to the Internet, a mobile communication line, etc. via the communication interface 24.

[0033] Furthermore, the computer that constitutes the work management device 10 has installed therein, as software, a program for an operating system (OS) and a work management application program. The work management application program includes a program for acquiring various data necessary for work management, a program for analyzing the acquired data, and a program for outputting information according to the results of the data analysis. When the above programs are read and executed by the processor 21, the computer that constitutes the work management device 10 performs the functions of the work management device 10, specifically, executes a series of processes related to the management of concrete pouring work.

[0034] The database server 12 corresponds to the storage device of the present invention, and for example, the work management device 10 can freely read out information stored in the database server 12. Note that the database server 12 may be configured with only one device (database server) or may be configured with multiple devices (database servers).

[0035] Construction schedule information for each of one or more construction projects that have already been carried out and one or more construction projects that are scheduled to be carried out is stored in the database server 12. The construction schedule includes the construction period (construction period), the address of the construction site, the construction company, the work content for each series of tasks to be carried out in the construction project, the number of workers, and the date of work implementation (strictly speaking, the scheduled date of implementation), etc.

[0036] The database server 12 also stores information about the weather at each construction site, specifically, forecast information about the weather for the next day and forecast information about the weather for today, for each construction project. Forecast information about the weather for the next day includes the expected weather, the expected probability of precipitation, and the expected amount of rainfall for each time slot on the next day. Forecast information about the weather for today includes the expected weather, the expected probability of precipitation, and the expected amount of rainfall for each time slot today (from the present time onwards). Forecast information about the weather for today may also include information for determining heavy rain, which can be obtained using raincloud radar, etc. The heavy rain determination information is information for determining whether heavy rain will occur at each construction site, and indicates the probability of heavy rain (especially sudden heavy rain) occurring at each construction site, and the expected amount of rainfall if heavy rain occurs. The source of the weather forecast information is not particularly limited, but for example, the weather forecast information may be obtained via the Internet from a public institution such as the Japan Meteorological Agency, or a private company that operates a weather forecast-related business. Alternatively, articles and information about weather forecasts for each region published in information transmission media such as newspapers, television, and websites may be collected, and the collected articles and information may be converted into data and stored in database server 12.

[0037] The user terminal 14 is an information and communication terminal operated by a user when managing concrete pouring work, and is capable of communicating with the work management device 10 via the network N. The user terminal 14 is configured as a desktop or laptop PC, a smartphone, a tablet terminal, a television receiver equipped with a communication function, or the like. An application program for managing concrete pouring work (hereinafter referred to as a work management app) is also installed in the user terminal 14. By launching the work management app on the user terminal 14 and using the functions within the app, the user can check various information necessary for managing concrete pouring work on the screen of the user terminal 14. The information necessary for managing concrete pouring work is available from the work management device 10 via the network N.

[0038] The data providing device 16 is configured, for example, by a server operated by a public institution such as the Japan Meteorological Agency, or a private company engaged in a weather forecasting business. The data providing device 16 can communicate with the database server 12 via the network N, and provides the database server 12 with information to be stored in the database server 12, i.e., information used by the work management device 10. The information that the data providing device 16 can provide may include information about the weather at each construction site, more specifically, information about the forecast weather, forecast probability of precipitation, and forecast rainfall amount at each construction site for today and tomorrow. In the embodiment shown in FIG. 2, there is only one data providing device 16, but the data providing devices 16 may exist separately for each type of data that can be provided, in other words, there may be a number of data providing devices 16 corresponding to the number of types of data that can be provided. Furthermore, the data providing device 16 may provide the above information directly to the work management device 10 without going through the database server 12.

[0039] Rainfall sensor 18 is installed at the work site when it is raining on the day concrete pouring work is to be carried out, and measures the amount of rainfall that falls at the work site within a predetermined time period (for example, one to several minutes, or one to several hours) while concrete pouring work is being carried out. Rainfall sensor 18 transmits data indicating a measurement value corresponding to the amount of rainfall to work management device 10 via network N. Here, the measurement value corresponding to the amount of rainfall that falls at the work site within the predetermined time period is, for example, the height of rainwater that accumulates at the work site within the predetermined time period, i.e., a measurement value of the amount of rainfall per predetermined time period. In this embodiment, the rainfall sensor 18 may be any known rainfall sensor that can obtain the above-described measurement values, without any particular restrictions.

[0040] (Work management flow using the work management device) Next, we will explain the information processing flow for work management by the work management device 10 (hereinafter referred to as the work management flow). This work management flow employs the information processing method of the present invention; in other words, each step in this work management flow corresponds to a component of the work management method of the present invention. Note that the work management flow described below is merely an example, and unnecessary steps may be deleted, new steps may be added, or the order in which steps are performed may be changed, as long as it does not deviate from the spirit of the present invention.

[0041] In the work management flow, the processor 21 of the computer constituting the work management device 10 reads a program installed on the computer and executes information processing corresponding to each step in the work management flow (more specifically, each step shown in Figures 3 and 4). In addition, the work management flow is divided into a flow that is carried out the day before the concrete pouring work is to be carried out (hereinafter referred to as the day before flow), and a flow that is carried out on the day of the concrete pouring work (hereinafter referred to as the day of the concrete pouring work). Each flow will be explained below, but for the purpose of explaining it more specifically and clearly, we will use as a concrete example a case in which a work plan has been set to carry out concrete pouring work on May 10, 2024 at Site T (equivalent to an example of a work location).

[0042] (Previous day flow) The day-before flow of the work management flow is triggered to start, for example, when a work management app is launched on the user terminal 14 and the user performs an operation to manage concrete pouring work at the site T via the user terminal 14. When starting the day-before flow, the user inputs necessary information for work management, specifically the address of the site T, the scheduled start time of work, the scheduled end time of work, the type of concrete to be poured, the location (pouring portion) at the site T where the concrete will be poured, the shape and dimensions of the concrete body to be constructed by the pouring work, the area to be poured for the day, etc.

[0043] The day-before-date flow is performed on May 9, 2024, the day before the concrete pouring work is to be performed, and proceeds as shown in Fig. 3. More specifically, in the day-before-date flow, processor 21 of the computer constituting work management device 10 (hereinafter simply referred to as processor 21) first acquires first data related to the forecast weather, forecast precipitation probability, and forecast rainfall amount at work site T on May 10, 2024, the work performance date (S001). The first data is provided by data providing device 16 at a predetermined time on May 9, 2024, and stored in database server 12, and processor 21 can acquire the first data by accessing database server 12.

[0044] Next, processor 21 determines whether the expected probability of precipitation indicated by the first data acquired in the previous step exceeds a predetermined value (S002). The predetermined value is a reference value set for determining whether concrete pouring work can be carried out at site T the next day (May 10, 2024), and is set to, for example, 60%. If the expected probability of precipitation is equal to or less than the predetermined value, the process proceeds to step S004.

[0045] On the other hand, if the expected probability of precipitation exceeds a predetermined value, the processor 21 executes a notification process to notify the user that the concrete pouring work for the next day will be postponed (S003). In this notification process, the processor 21 generates display data for a message indicating that the expected probability of precipitation exceeds a predetermined value and that the concrete pouring work should be postponed, and transmits the display data to the user terminal 14. Upon receiving the display data, the user terminal 14 expands the display data and displays the above message on its screen. By checking the above message, the user can take necessary measures, such as deciding to postpone the concrete pouring work for the next day.

[0046] When the process proceeds to step S004, the processor 21 determines whether the predicted rainfall amount indicated by the first data is equal to or less than a first threshold value (S004). The first threshold value is a preset reference value, and is set to, for example, 5 mm / h.

[0047] If the expected rainfall indicated by the first data is equal to or less than a first threshold, the processor 21 sets a first time corresponding to the expected rainfall indicated by the first data as the time for concrete pouring work on the following day (S005). The first time is set based on the expected rainfall indicated by the first data and the volume of the concrete body to be constructed by the concrete pouring work so that the weight increase per unit volume of the concrete body during work (hereinafter also referred to as unit water increase) does not exceed a predetermined value. The unit water increase of the concrete body is the amount of weight increase of the concrete body due to rainwater seeping into the concrete body during work, divided by the volume of the concrete body, and is calculated using the following formula: ΔG=A / V (1) A = d / 1000 × t × S (2) V = S × h (3) For concrete bodies that extend long in a given direction, such as those that make up foundation beams, the value obtained by dividing ΔG in the above formula (1) by the extension length of the concrete body (unit: m) can be used to calculate the increase in unit water volume of the concrete body per 1 m of length.

[0048] In the above formulas (1) to (3), ΔG is the increase in the unit water content of the concrete (unit: kg / m 3 ), A is the amount of rainwater (unit: kg) that penetrates into the concrete body per hour during work, and V is the volume of the concrete body (unit: m 3 ) where d is the expected rainfall amount (unit: mm / h), t is the rainfall duration (unit: hours [h]), and S is the area of ​​the top surface of the concrete body (unit: m 2 ) and h is the height of the concrete body (unit: m). The rainfall time t when the above ΔG is set so as not to exceed the predetermined value X, that is, t1 that satisfies the following formula (4), corresponds to the first time period. t1<1000 / d×h×X (4) The first time t1 set in the manner described above is managed as the time for concrete pouring work the next day, and specifically, is incorporated into the work schedule as the time during which concrete pouring work can continue even in rainy weather.

[0049] If it is determined in step S004 that the expected rainfall indicated by the first data is greater than the first threshold, the processor 21 further determines whether the expected rainfall indicated by the first data is equal to or less than a second threshold (S006). The second threshold is a reference value set for determining whether concrete pouring work can be carried out at the site T on May 10, 2024, and is set to a value greater than the first threshold, for example, 10 mm / h.

[0050] When it is determined that the expected rainfall amount indicated by the first data exceeds the second threshold, the processor 21 executes a notification process to notify the postponement of the concrete pouring work for the next day (S007). This notification process is the same as the notification process executed in step S003.

[0051] On the other hand, in a case where it is determined that the expected rainfall amount indicated by the first data exceeds the first threshold and is equal to or less than the second threshold, the processor 21 can accept work execution permission information by May 9, 2024. The work execution permission information is input information for permitting the execution of concrete pouring work on the following day, and is transmitted from the user terminal 14 to the work management device 10, for example, when the user performs a predetermined operation on the user terminal 14. At this time, the user considers the type and pouring location of the concrete to be poured in the next day's work, and inputs the work execution permission information after consulting with the supervisor about whether or not to execute the work. Note that the information considered when discussing whether or not to execute the work may be the information input by the user at the start of the previous day's flow.

[0052] Then, if the work execution permission information is received on May 9, 2024 (Yes in S008), the processor 21 proceeds to step S005 and sets the first time corresponding to the expected rainfall indicated by the first data as the execution time of the work on the next day, as described above. On the other hand, if the work execution permission information is not received on May 9, 2024, the processor 21 proceeds to step S007 and executes notification processing to notify that the concrete pouring work on the next day will be postponed. The previous day flow ends when the series of steps described above are completed.

[0053] (Flow on the day) The current day's work management flow, like the previous day's flow, is triggered when the work management app is launched on the user terminal 14 and the user performs operations to manage concrete pouring work at the site T through the user terminal 14.

[0054] The current day flow is performed on May 10, 2024, the actual day on which the concrete pouring work will be carried out, and proceeds according to the flow shown in Fig. 4. More specifically, in the current day flow, the processor 21 first acquires second data relating to the forecast weather, forecast precipitation probability, and forecast rainfall amount at the site T on May 10, 2024 (S011). The second data is provided by the data providing device 16 at a predetermined time on May 10, 2024, more specifically, several hours before the start of the concrete pouring work, and is stored in the database server 12. The processor 21 can acquire the second data by accessing the database server 12.

[0055] Furthermore, in the flow of the day, the processor 21 repeatedly acquires heavy rain determination information periodically or irregularly (S012). The heavy rain determination information is provided by the data providing device 16 based on raincloud radar information that is available periodically on May 10, 2024, for example, at intervals of one to several hours, and is accumulated in the database server 12. The processor 21 can acquire the latest heavy rain determination information at each point in time by accessing the database server 12 periodically or irregularly on May 10, 2024. Note that "heavy rain" refers to rainfall with a precipitation rate equal to or greater than a set value (for example, 10 mm / h).

[0056] Then, each time processor 21 acquires heavy rain determination information, it determines whether heavy rain will occur at work site T at each point in time on the work day (specifically, at each time during concrete pouring work), or more precisely, whether heavy rain is forecast (S013), based on the heavy rain determination information. If processor 21 determines that heavy rain will occur at work site T in, for example, one hour, it executes notification processing to notify the determination result (S014). In this notification processing, processor 21 generates display data for a message indicating that heavy rain may occur at work site T in one hour and data for outputting a warning sound, and transmits these data to user terminal 14.

[0057] On the user terminal 14 side that received the data, the received data is expanded, and the above message is displayed on the screen and the above warning sound (alarm) is output. As a result, the user learns from the above message and alarm that heavy rain may occur at the site T in one hour, and takes appropriate countermeasures such as curing the concrete body. The user then suspends work and waits until the heavy rain (particularly a sudden downpour) subsides.

[0058] On the other hand, if it is determined that heavy rain will not occur at the site T one hour later, the processor 21 determines whether the expected rainfall indicated by the second data acquired in step S011 is equal to or less than a second threshold (S015). The second threshold is the same value as that used in step S006 of the previous day flow, and is greater than the first threshold, and is set to, for example, 10 mm / h.

[0059] When it is determined that the expected rainfall amount indicated by the second data exceeds the second threshold, the processor 21 executes a notification process to notify the user that the concrete pouring work will be postponed (S016). This notification process is the same as the notification process executed in step S003 of the previous day flow.

[0060] When it is determined that the expected rainfall amount indicated by the second data is equal to or less than the second threshold, processor 21 determines whether the expected rainfall amount indicated by the second data exceeds the expected rainfall amount indicated by the first data, i.e., the expected rainfall amount for the work day indicated by the data acquired on the previous day (S017). When the expected rainfall amount indicated by the second data is equal to or less than the expected rainfall amount indicated by the first data, processor 21 sets the first time set in step S005 of the previous day flow as the time for performing the concrete pouring work on May 10, 2024 (S018).

[0061] On the other hand, if the expected rainfall amount indicated by the second data exceeds the expected rainfall amount indicated by the first data, processor 21 calculates a second time period corresponding to the expected rainfall amount indicated by the second data. In this case, processor 21 changes the implementation time of the concrete pouring work on May 10, 2024 from the first time period to the second time period (S019). Like the first time period, the second time period is set based on the expected rainfall amount indicated by the second data and the volume of the concrete body to be constructed by the concrete pouring work, so that the weight increase per unit volume of the concrete body during the work does not exceed a predetermined value. Specifically, the rainfall time period t when the unit water content increase amount ΔG of the concrete body is set so as not to exceed the predetermined value X according to the above (1) to (4) is calculated as the second time period t2.

[0062] After the time for concrete pouring work is set, concrete pouring work begins at the site T, and a concrete body is constructed. During this time, a rainfall sensor 18 is installed at a predetermined location at the site T, and the rainfall sensor 18 measures the amount of rain that falls at the site T within a predetermined time while the concrete pouring work is being carried out, and sequentially transmits the measurement results to the work management device 10. During the concrete pouring work, the processor 21 receives the measurement results from the rainfall sensor 18 as needed, and acquires a measurement value corresponding to the amount of rain that falls at the site T within the predetermined time while the work is being carried out (S020).

[0063] Furthermore, based on the acquired measurement values, the processor 21 calculates the increase in water content per unit of the concrete body during the concrete pouring work, i.e., the increase in weight per unit volume of the concrete body due to rainwater (S021). The increase in water content per unit of the concrete body can be calculated using the above-mentioned formulas (1) to (3). Furthermore, the processor 21 determines whether the calculated unit water volume increase reaches a reference value (S022). The reference value is a reference value for determining whether concrete pouring work can be continued at the construction site T in rainy weather, and is, for example, 5 kg / m 3 is set to.

[0064] If the calculated unit water volume increase is equal to or greater than the reference value, the processor 21 executes a warning process (S023). In this warning process, the processor 21 generates display data for a message indicating that the concrete pouring work time has ended and data for outputting a warning sound, and transmits these data to the user terminal 14. The user terminal 14 that receives the data expands the received data, displays the above message on the screen, and outputs the above warning sound (alarm). As a result, the user is informed through the above message or alarm that the work time has ended, and takes appropriate measures, such as curing the concrete body, to complete the work for May 10, 2024. If the actual concrete pouring range at this point is less than the daily pouring range planned the day before the work, the missing pouring range is carried over to the work on the following day or later.

[0065] On the other hand, if the calculated increase in unit water volume is less than the above-mentioned reference value, processor 21 determines whether the time elapsed since the start of the concrete pouring work exceeds the set work execution time (i.e., the second hour if changed from the first hour, or the first hour otherwise) (S024). If the elapsed time exceeds the work execution time, the process proceeds to step S023, and processor 21 executes the warning process described above. Note that if the actual concrete pouring range at this point is less than the daily pouring range planned the day before the work, the missing pouring range will be carried over to the work on the following day or later. On the other hand, if the elapsed time does not exceed the task execution time, the process returns to step S020, and the subsequent steps are repeated. The flow for that day ends when the series of steps explained above is completed.

[0066] As described above, in this embodiment, by implementing the above-described day-before flow and day-of flow, the concrete pouring schedule can be appropriately managed even if the weather on the work day is rainy. Specifically, in rainy weather, concrete pouring can be appropriately carried out while ensuring the quality (e.g., strength) of the concrete body. In addition, in this embodiment, the possibility of carrying out the work can be appropriately determined based on the expected rainfall at the site T on the day the work is to be carried out, both the day before the work is to be carried out and on the day the work is to be carried out, and the results of this determination can be notified to workers, etc. Furthermore, in this embodiment, even if some rain is forecast on the day the work is to be carried out, the concrete work can be permitted, and in that case, the concrete pouring work can be carried out while being appropriately managed on the day the work is to be carried out, thereby shortening the construction period for the entire construction project, including the concrete pouring work. In addition, in this embodiment, if the amount of rainfall at the site T predicted on the day of concrete pouring work exceeds the amount of rainfall predicted on the day before the work day, the work execution time is reset, thereby making it possible to appropriately manage the work execution schedule. In addition, in this embodiment, while concrete pouring work is being carried out in rainy weather, the amount of rainfall at the site T is actually measured, and the measurement results are taken into consideration to make an appropriate decision as to whether or not to continue the work. Furthermore, in this embodiment, if a sudden downpour such as a torrential downpour is predicted on the day concrete pouring work is to be carried out, an appropriate decision can be made as to whether or not to continue the work based on the predicted results.

[0067] <<Other embodiments>> While one embodiment of the work management method and work management device of the present invention has been described above, the above embodiment is merely an example for facilitating understanding of the present invention and is not intended to limit the present invention. In other words, the present invention may be modified or improved without departing from the spirit and scope of the present invention. Furthermore, the present invention naturally includes equivalents thereof.

[0068] In the above embodiment, the first data is acquired on the day before the concrete pouring work is to be performed, the first time period is calculated according to the amount of rainfall indicated by the first data, and the first time period is set as the work execution time. However, this is not limited to this, and the acquisition of the first data, the calculation of the first time period, and the setting of the work execution time may be performed on a day (e.g., several days) before the day before the work execution date.

[0069] Furthermore, in the above embodiment, when concrete work is carried out in rainy weather, the amount of rainfall during the work is measured by the rainfall sensor 18, and data indicating the measurement values ​​is sequentially transmitted from the rainfall sensor 18 to the work management device 10 via the network N. However, this is not limited to this, and the amount of rainfall during the work may be measured by a rain gauge installed at the work site, and a user who has confirmed (more specifically, visually inspected) the measurement results may input the information via the user terminal 14 or the like, and the input information may be transmitted to the work management device 10 via the network N. The rain gauge used in the above case is not particularly limited, but is preferably one such as the rain gauge 30 shown in FIG. 5, which has a water receiving section 31 with an open top and a storage section 32 consisting of a substantially transparent container attached below the water receiving section 31, with the storage section 32 being provided with a scale 33 indicating the amount of stored water. Furthermore, in the rain gauge 30 shown in FIG. 5, the correspondence between the intervals of the scale 33 and the amount of stored water, and the correspondence between the amount of stored water per unit time (i.e., rainfall) and the unit increase in water volume of the concrete body, can be determined to identify the scale 33 (hereinafter, the specific scale 33a) corresponding to the amount of stored water when the unit increase in water volume reaches a reference value. In this case, as shown in FIG. 5, it is preferable to attach a mark 34 near the specific scale 33a to indicate that the unit increase in water volume has reached the reference value. This allows the user to use the mark 34 as a guide to confirm when the amount of stored water in the storage section 32 reaches the amount corresponding to the specific scale 33a. In other words, when the unit water volume increase reaches the reference value, the user can easily grasp this fact. [Explanation of symbols]

[0070] 10 Work management device 12 Database Server 14 User terminal 16 Data providing device 18 Rainfall sensor 21 processors 22 Memory 23. Storage 24 Communication Interface 30 Rain gauge 31 Water receiving part 32 Storage section 33 scales 33a Specific scale 34 N Network S Work Management System

Claims

1. A work management method for pouring concrete at an outdoor work site, comprising: The processor: acquire first data relating to the amount of rainfall expected at the work location on the day the work is performed, and if the amount of rainfall indicated by the first data is equal to or less than a first threshold, set a first time period corresponding to the amount of rainfall indicated by the first data as the time period for performing the work; On the implementation date, obtaining second data relating to the amount of rainfall expected at the work location on the performance date; If the predicted rainfall indicated by the second data is equal to or less than a second threshold, calculate the weight increase due to rainwater per unit volume of the concrete body constituted by the concrete poured in the work during the execution of the work, A work management method, comprising: executing a warning process when the weight increase is equal to or greater than a reference value, or when the elapsed time from the start of the work exceeds the work duration.

2. The work management method of claim 1, wherein when the second threshold is greater than the first threshold and the expected rainfall indicated by the first data exceeds the second threshold, the processor executes a notification process to notify a postponement of the work.

3. 3. The work management method described in claim 2, wherein, in a case where the expected rainfall indicated by the first data exceeds the first threshold and is equal to or less than the second threshold, when the processor receives input information before the implementation date to allow the work to be carried out on the implementation date, it sets the work implementation time to a first time corresponding to the expected rainfall indicated by the first data.

4. The work management method according to claim 1 , wherein, when the predicted rainfall amount indicated by the second data on the execution date exceeds the second threshold, the processor executes a notification process to notify a postponement of the execution of the work.

5. 2. The work management method of claim 1, wherein, when the expected rainfall indicated by the second data exceeds the expected rainfall indicated by the first data, the processor changes the execution time of the work on the execution date from the first time to a second time corresponding to the expected rainfall indicated by the second data.

6. 2. The work management method of claim 1, wherein the processor acquires the first data on the day before the execution date, calculates the first time according to the amount of rainfall indicated by the first data, and sets the first time as the execution time of the work.

7. The work management method according to claim 1, wherein the processor acquires a measurement value corresponding to the amount of rainfall that falls at the work location within a predetermined time during the work on the execution date, and calculates the weight increase amount based on the measurement value.

8. A work management method described in any one of claims 1 to 7, wherein the processor repeatedly acquires heavy rain determination information for determining whether heavy rain has occurred on the implementation day, and each time it acquires the heavy rain determination information, it determines whether heavy rain has occurred at the work site on the implementation day based on the heavy rain determination information, and executes a notification process to notify the determination result if it determines that heavy rain has occurred at the work site.

9. A work management device for managing concrete pouring work at an outdoor work site, a processor, the processor comprising: acquire first data relating to the amount of rainfall expected at the work location on the day the work is performed, and if the amount of rainfall indicated by the first data is equal to or less than a first threshold, set a first time period corresponding to the amount of rainfall indicated by the first data as the time period for performing the work; On the implementation date, obtaining second data relating to the amount of rainfall expected at the work location on the performance date; If the predicted rainfall indicated by the second data is equal to or less than a second threshold, calculate the weight increase due to rainwater per unit volume of the concrete body constituted by the concrete poured in the work during the execution of the work, A work management device that executes a warning process when the weight increase is equal to or greater than a reference value, or when the elapsed time from the start of the work exceeds the work execution time.

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