Concrete casting management and support device

Abstract

To provide a concrete casting management and support device with which compaction status of concrete during construction can be easily visualized in real time.SOLUTION: A concrete casting management and support device 1, which is used to manage on-site concrete casting, includes a reference point measurement part that measures, over time, the three-dimensional coordinates of a marker 22 for identifying the position of a vibrator B, a concrete measurement part that measures the height of the top surface of the concrete over time, a vibrator compaction time acquisition part, a compaction range identification part that identifies the compaction range based on the measurement results of the reference point measurement part, the concrete measurement part, and the compaction time acquisition part, a casting management part that manages the pouring time based on the height of the top surface of concrete, and a display terminal 4 that displays information regarding the compaction range and the casting time.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a concrete pouring management support device for managing the pouring of cast-in-place concrete. [Background technology]

[0002] When constructing a concrete structure, concrete is sometimes poured vertically in multiple steps. The concrete poured into the area surrounded by formwork must be compacted for a specified period of time using a vibrator, and concrete must be poured upwards within a specified period of time (hereinafter referred to as the "allowable pouring time").

[0003] If the compaction using a vibrator is insufficient, air bubbles that were trapped inside the concrete when it was poured will remain inside, causing the concrete to lose its density and produce junk.

[0004] In addition, when pouring concrete vertically, the upper layer must be poured before the lower layer hardens, and if the time interval between pouring concrete (hereinafter referred to as "pouring time"), which is the difference between the time the upper layer concrete is poured and the time the lower layer concrete is poured, is longer than a specified time, it can cause cold joints.

[0005] Therefore, various technologies have been developed to support concrete pouring management. For example, Patent Document 1 discloses a concrete pouring management system that enables high-quality concrete to be obtained by performing appropriate compaction. Patent Documents 2 and 3 disclose concrete pouring management systems that accurately manage the pouring time until the next pour. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2019-124110 A [Patent Document 2] JP 2018-35628 A [Patent Document 3] JP 2011-202383 A Summary of the Invention [Problem to be solved by the invention]

[0007] However, since both the compaction and pouring of concrete are important management items, it is desirable to be able to manage them with one system. It is also desirable to have a display that can be easily confirmed by workers and managers who are pouring concrete.

[0008] Therefore, an object of the present invention is to provide a concrete pouring management support device that makes it possible to easily visually check the condition of concrete being poured in real time. [Means for solving the problem]

[0009] In order to achieve the above-mentioned object, the concrete pouring management support device of the present invention is a concrete pouring management support device for managing the pouring of cast-in-place concrete, and is equipped with a reference point measurement unit that measures, over time, the three-dimensional coordinates of a reference point for identifying the position of a vibrator used to compact the poured concrete, a concrete measurement unit that measures, over time, the height of the top surface of the concrete from a position where the positional relationship with the reference point can be identified, a compaction time acquisition unit that acquires the start time and end time managed as compaction by the vibrator, a compaction range identification unit that identifies the compaction range of the concrete based on the measurement results of the reference point measurement unit, the concrete measurement unit, and the compaction time acquisition unit, a pouring management unit that manages the pouring time based on the top surface height measured by the concrete measurement unit, and a display unit that displays the compaction range and the pouring time, and is characterized in that the display unit makes it possible to visually confirm the overlapping area of ​​the compaction ranges of the concrete poured one above the other, and is capable of displaying a value that reflects the pouring time.

[0010] Here, the display unit can be configured to change the display form according to the length of time that has elapsed since the concrete was poured, and to stop changing the display form by specifying the pouring time. The display unit can also be configured to display an overlapping area of ​​the compaction ranges of the concrete of at least one of the upper and lower layers in a display form that allows the compaction ranges of the concrete of at least one of the upper and lower layers to be seen through.

[0011] The reference point may be a marker attached to a cable of the vibrator, and the reference point measuring unit may measure the three-dimensional coordinates by photographing the marker with a plurality of video cameras. Furthermore, it is preferable that the concrete measuring unit is a laser distance meter attached a predetermined distance below the reference point. Effect of the Invention

[0012] The concrete pouring management support device of the present invention thus configured includes a concrete measurement unit that measures the height of the top surface of the concrete over time, and a compaction time acquisition unit that acquires the start and end times of compaction by the vibrator, and can specify the compaction range of the concrete based on the results of these measurements. In addition, the pouring time is managed by the pouring management unit.

[0013] The display unit that displays the compaction range and pouring time makes it possible to visually check the overlapping areas of the compaction ranges of concrete poured one above the other, and can display the pouring time. This allows workers and managers pouring the concrete to easily visually check the condition of the concrete being poured in real time. [Brief description of the drawings]

[0014] [Figure 1] 1 is an explanatory diagram showing a schematic configuration of a concrete pouring management support device according to an embodiment of the present invention; [Diagram 2] FIG. 13 is an explanatory diagram relating to measurement of the height of the upper surface of concrete. [Diagram 3] FIG. 13 is an explanatory diagram relating to measurement of three-dimensional coordinates of a reference point. [Figure 4] FIG. 2 is an explanatory diagram illustrating an overlapping area of ​​compaction of concrete poured one above the other. [Diagram 5] FIG. 2 is an explanatory diagram of the compaction range of concrete. [Figure 6] 5 is an explanatory diagram illustrating the state of FIG. 4 as viewed from the side. FIG. [Figure 7] FIG. 13 is an explanatory diagram illustrating a display that reflects the overlapping time. [Figure 8] 8A and 8B are diagrams illustrating the state of FIG. 7 as viewed from different directions, where (a) is a side view and (b) is a plan view. [Figure 9] 1A is a bird's-eye view of the area compacted by concrete, FIG. 1B is a plan view of the area compacted by concrete, and FIG. 1C is a side view of the area compacted by concrete. [Figure 10]13 are examples of displays reflecting the overlapping time, where (a) is a bird's-eye view, (b) is a plan view, and (c) is a side view. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory diagram that shows a schematic configuration of a concrete pouring management support device 1 according to the present embodiment.

[0016] The concrete pouring management support device 1 of this embodiment is used for construction management when pouring concrete into a pouring area K surrounded by formwork etc. Ready-mixed concrete is poured into the pouring area K in the vertical direction (height direction) in multiple batches.

[0017] Once fresh concrete has been poured into the pouring area K to the height of one layer, it is compacted by vibrator B. Compaction is performed so that no gaps are formed horizontally within the compaction area. Then, the top layer of fresh concrete is poured before a set time has elapsed after the concrete has been poured. The time from when the lower layer of concrete is poured until the top layer of concrete is poured is the pouring time.

[0018] After the upper layer of concrete has been poured, it is compacted in the same way as the lower layer, but in this case, it is compacted so that an overlapping area of ​​the compacted areas of the concrete poured above and below (hereinafter referred to as the "compaction lap area") is created.

[0019] In the concrete pouring management support device 1 of this embodiment, the compaction range, compaction lap area, and pouring time are managed, and the worker M performing the concrete pouring work and the construction manager can easily check them on a display terminal 4, etc.

[0020] The concrete pouring management support device 1 for managing the pouring of such cast-in-place concrete, as shown in Figure 1, is equipped with a reference point measurement unit (21) that measures the three-dimensional coordinates of a reference point (22) over time, a concrete measurement unit (3) that measures the height of the top surface of the concrete over time, a calculation processing unit 11 that performs various calculation controls, and a display unit (4) that performs various displays based on the various measurement results.

[0021] The reference point measurement unit may be configured in any manner, such as a positioning system using a GNSS antenna of the Global Navigation Satellite System, or a positioning system using ultra-wide band (UWB) wireless communication technology, as long as it is a means capable of measuring the three-dimensional coordinates of a reference point for identifying the position of vibrator B used to compact the poured concrete.

[0022] In this embodiment, a reference point measurement unit that can acquire the coordinates of a reference point with high accuracy even in a place with poor visibility suitable for a positioning system using a GNSS antenna will be described. The reference point measurement unit of this embodiment performs positioning using digital data obtained by motion capture in which a marker 22, which is a reference point, is photographed by multiple video cameras 21.

[0023] 2, the marker 22 is attached to a cable B1 connected to a vibrator B. This figure illustrates a state in which a fixing bracket 32 ​​is attached midway along the cable B1 extending vertically above the vibrator B, and the marker 22 is attached on a measuring instrument 31 fixed to the fixing bracket 32. This fixing bracket 32 ​​can be attached to any position on the cable B1.

[0024] The marker 22 may be, for example, a sphere coated with a retroreflective paint. Also, depending on the condition of the casting range K and the measurement time, such as daytime or nighttime, a spherical marker coated with paint or a self-luminous marker may be used. In the case of a spherical marker, infrared rays are emitted from the camera performing the motion capture, and the marker reflects the light, causing the marker to be detected. In the case of a self-luminous marker, infrared rays are emitted from the marker itself, eliminating the need for infrared irradiation from the camera, and noise can be reduced accordingly. Also, if the distance between the marker 22 and the video camera 21 is long, a large spherical marker 22 may be used. In the case of a self-luminous marker, a high-output marker can be used to make it easier to detect.

[0025] 3 is an explanatory diagram regarding measurement of the three-dimensional coordinates of the marker 22 serving as a reference point. The marker 22, which is placed directly above the vibrator B, moves appropriately within the concrete pouring range K, so that the entire concrete pouring range K can be photographed without any blind spots by the multiple video cameras 21 constituting the reference point measuring unit.

[0026] To convert one marker 22 into three-dimensional data, two or more video cameras 21 installed at different positions are sufficient, but at a concrete construction site, there are many obstacles, such as workers M and equipment, that can interfere with filming the marker 22. For this reason, six video cameras 21, or at least four, are installed at approximately equal intervals in the circumferential direction from the center of the casting range K so that the marker 22 can always be captured by three video cameras 21.

[0027] The video camera 21 is positioned higher than the movement range of the marker 22 and the formwork that defines the pouring range K, and the worker M. The video camera 21 may be, for example, a PrimeX13 (product name, 1.3 million pixels, 30-240 fps, lens viewing angle 56°).

[0028] The marker 22 is attached midway along a cable B1 connected to the vibrator B so that the video camera 21 can take pictures even when the vibrator B is compacting the bottom layer of concrete.

[0029] As shown in Figure 2, when vibrator B is used to compact concrete, cable B1 is stood straight up, so the position of vibrator B in a planar view (two-dimensional) can be determined by the position of marker 22 in a planar view (two-dimensional).

[0030] The marker 22 may be attached anywhere so long as its position relative to the vibrator B, which moves repeatedly during construction, can always be identified; however, in this embodiment, the marker 22 is fixed to the top surface of a measuring instrument 31 attached to a cable B1 via a fixing bracket 32.

[0031] The measuring instrument 31 is equipped with a laser distance meter 3 constituting a concrete measurement unit for measuring the height of a concrete top surface C. The laser distance meter 3 measures the distance D2 (see FIG. 2) between the bottom surface of the measuring instrument 31 and the concrete top surface C by reflecting a laser beam that is irradiated downward by the concrete top surface C.

[0032] In addition to the laser distance meter 3, a data processing unit (not shown), a battery, etc. are stored inside the box-shaped measuring instrument 31. Furthermore, a switch 33 for issuing instructions to start and end compaction management can be provided on the surface of the box-shaped measuring instrument 31.

[0033] When the distance D2 is measured by the laser rangefinder 3, it is temporarily stored in a data processing unit together with the time of measurement, and then the measurement value and time are transmitted to the outside via the antenna 311. Here, the distance D3 between the bottom surface of the measuring device 31, which is the base point of the laser rangefinder 3, and the center of the marker 22, and the distance D1 from the center of the marker 22 to the bottom end of the vibrator B are measured in advance using a tape measure or the like.

[0034] Then, when the vertical coordinate (Z coordinate) of the marker 22 is identified by motion capture using the video camera 21, the Z coordinate of the concrete top surface C can be obtained by subtracting the distance (D3+D2) from the Z coordinate of the marker 22.

[0035] On the other hand, the vertical coordinate (Z coordinate) of the bottom end of vibrator B can be obtained by subtracting distance D1 from the Z coordinate of marker 22. The height direction region (insertion depth) of the range of concrete compaction by vibrator B can be specified by the Z coordinate of the bottom end of vibrator B and the Z coordinate of the top surface C of the concrete.

[0036] Furthermore, the lateral region of the range of compaction of concrete by vibrator B can be specified by the outer edge of a cylinder or polygonal prism centered on vibrator B. For example, a cylinder with a diameter n times (e.g., about 10 times) the diameter of vibrator B can be defined as compaction range R1 (see FIG. 5).

[0037] 1, signals such as measurement values ​​transmitted from antenna 311 of measuring instrument 31 are received by communication unit 12 connected to arithmetic processing unit 11, and processed by arithmetic processing unit 11, which is a computer terminal such as a notebook computer. The arithmetic processing unit 11 includes a storage medium such as a hard disk or SSD (Solid State Drive) as a storage unit.

[0038] The calculation processing unit 11 executes at least a part of the calculations performed in the concrete pouring management support device 1. In short, the calculation processes required for the reference point measurement unit, concrete measurement unit, compaction time acquisition unit, compaction range identification unit, pouring management unit, and display unit can be performed in various devices such as the measuring instrument 31 and the display terminal 4, but can also be executed by the computer of the calculation processing unit 11.

[0039] In the reference point measurement unit, the three-dimensional coordinates of the marker 22 serving as the reference point are obtained by analyzing the video data captured by the video camera 21, and the three-dimensional coordinates are stored in the memory unit of the calculation processing unit 11 together with the time when they were measured.

[0040] The concrete measurement unit measures the height of the concrete top surface C along with the time using a laser range finder 3 provided at a position where the positional relationship with the marker 22 can be specified by a distance D3 (see FIG. 2), and the data sent by the antenna 311 of the measuring instrument 31 is stored in the memory unit of the calculation processing unit 11. For example, a grid is formed by dividing the plane of the pouring range K into segments with side lengths of about 2 mm to 10 mm, and the time when the height of the concrete top surface C changed for each grid is stored as the pouring time of the concrete.

[0041] The compaction time acquisition unit acquires the start time and end time managed as the compaction by vibrator B. For example, after vibrator B is switched on and placed and oriented in a position for compacting the concrete, when a signal indicating that switch 33 of measuring device 31 is turned on is sent to calculation processing unit 11, that time or a time obtained by adding or subtracting a predetermined time from that time is stored in the memory unit as the compaction start time. Also, based on the time when switch 33 of measuring device 31 is turned off, that time or a time obtained by adding or subtracting a predetermined time from that time is stored in the memory unit of calculation processing unit 11 as the compaction end time.

[0042] Therefore, the compaction time can be calculated from the compaction start time and the compaction end time in the calculation processing unit 11. The required compaction time is generally about 5 to 15 seconds, and can be set to, for example, 10 seconds.

[0043] The compaction range specifying unit of the calculation processing unit 11 can specify the planar coordinates and vertical coordinates of the vibrator B at a certain time from the three-dimensional coordinates of the marker 22 at that time measured by the reference point measuring unit. If that time corresponds to the compaction time by the vibrator B managed by the compaction time acquiring unit, the compaction range of the concrete can be specified from that time. For example, when the compaction time by the vibrator B reaches the required compaction time, if the maximum movement amount of the vibrator B from the compaction start time to the current time corresponds to within 15 cm in the horizontal direction and within 10 cm in the vertical direction, which are the allowable errors during compaction, the planar coordinates and vertical coordinates of the vibrator B at the compaction start time can be used as reference points to specify the compaction range of the concrete from that point.

[0044] The pouring management unit manages the pouring time based on the height of the concrete top surface C measured by the concrete measurement unit. For example, when the height of a new concrete top surface C is measured above the height of the concrete top surface C measured at a certain time, the time up to that point is stored in the memory unit of the calculation processing unit 11 as the pouring time.

[0045] The display unit displays information regarding the concrete compaction range and pouring time. The display terminal 4 serving as the display unit can be a tablet terminal carried by the worker M during work. The calculation of the data to be displayed on the display terminal 4 can be performed on the tablet terminal side, or the calculation results executed by the calculation processing unit 11 can be transmitted to the tablet terminal for display.

[0046] On the display terminal 4, the overlapping areas of the compaction ranges of concrete poured one above the other can be visually confirmed, and the display can reflect the pouring time. Fig. 4 is an explanatory diagram illustrating an example of the overlapping areas of the compaction ranges of concrete poured one above the other.

[0047] Here, for the concrete compaction range R1 (R2), as shown in Fig. 5, a cylindrical shape with a diameter about 10 times the diameter of vibrator B at the center can be set as the effective compaction range, which is the range of influence by vibrator B. Vibrator B can be used while moving one unit, but multiple vibrators B can also be used depending on the planar size of pouring range K.

[0048] As shown in Fig. 4, the display terminal 4 can display the compacted range R1 of the lower layer concrete poured first, overlaid with the compacted range R2 of the upper layer concrete poured later. This display combines the compacted ranges R1 and R2 produced by multiple vibrators B and displays them on a single screen. Here, the compacted ranges are grouped by layer (lift), and each lift is displayed in a different color.

[0049] In this display of the compacted range, not only are the compacted ranges R1, R2 in the lower and upper layers different in hue, but the compacted ranges R1, R2 in the lower and upper layers are displayed transparently (semi-transparent), so the compacted range R2 in the upper layer can be seen through the compacted range R1 in the lower layer. In other words, the compaction lap area W, which is the overlapping area of ​​the compacted ranges R1, R2 of the concrete poured above and below, becomes visible, and the continuity of the compaction ranges of the upper and lower pours can be confirmed with a single display. Note that, as long as the compaction lap area W is visible, the transparent display may be used for either the upper or lower layer.

[0050] Figure 6 is an explanatory diagram illustrating the bird's-eye view of Figure 4 as viewed from the side. The display terminal 4 allows the user to easily change the viewing direction of the compaction range. With this side view, the user can clearly see the top position of the first layer (the lower layer), the bottom position of the second layer (the upper layer), and the length of the compaction lap area W.

[0051] The display terminal 4 can display not only the compaction range but also the pouring time. FIG. 7 is an explanatory diagram illustrating a display that reflects the pouring time. In this diagram, the height of the concrete top surface C of each layer is displayed as viewed slightly obliquely. In detail, a display area C1 of the height of the concrete top surface C when the first layer is poured and managed, a display area C2 of the height of the concrete top surface C when the second layer is poured and managed, and a display area C3 of the height of the concrete top surface C when the third layer is poured and managed are displayed as viewed slightly obliquely. These display areas C1-C3 can be displayed, for example, as a circle that represents the effective compaction range in the planar direction of the vibrator B.

[0052] On the other hand, Fig. 8 shows an example of the state of Fig. 7 viewed from a different direction. Fig. 8(a) shows an example of the display switched to a side view, and Fig. 8(b) shows an example of the display switched to a flat view. These views are slightly diagonal, slightly shifted from directly to the side or directly above, to make them easier to see.

[0053] The time that has elapsed since concrete was poured is managed by the pouring management unit, and the display form Ha of the first layer C1 indicates the state in which the longest time has elapsed since pouring. If concrete is not poured within the allowable pouring time (for example, 2 hours), quality defects such as cold joints will occur, so it is preferable to set the display form of the concrete top surface C to a darker or warmer color display form Ha as the elapsed time increases, so as to easily attract the user's attention. When the worker M checks the dark (warm) color display forms Ha, Hb on the display terminal 4, he or she can prevent the pouring time from exceeding the limit by pouring concrete in that area as a priority.

[0054] Even in the first layer C1, the later poured areas are displayed in a display form Hb that is lighter in color than the display form Ha. Furthermore, the display forms Hc and Hd of the second layer C2 and the third layer C3 are colored in light or cool colors because the time that has passed since pouring is short.

[0055] This change in the display form Ha-Hd stops when concrete is poured into the upper layer. Referring to Fig. 8(b), the dark display form Ha on the left side is displayed as the darkest display form Ha because no concrete has been poured above the first layer C1.

[0056] Even if the compaction range of the first layer C1 is the same, when the second layer C2 is poured on top, the change stops at the display form Hb, for example, and thereafter, even if time passes, it does not change to the dark display form Ha.

[0057] By making it possible to display on the display terminal 4 in this manner a display that reflects the pouring time, worker M can easily confirm that the upper layer of concrete has been poured within the allowable pouring time.

[0058] Next, pouring management of cast-in-place concrete using the concrete pouring management support device 1 of this embodiment will be described. In the following, an example will be described in which fresh concrete is poured in multiple steps in the vertical direction into a rectangular casting area K surrounded by a formwork, as shown in Figure 1.

[0059] First, as a preparation work, the concrete pouring management support device 1 is set up. After arranging the multiple video cameras 21 that serve as reference point measuring units, the pouring range K to be the target of positioning by motion capture is recognized. Specifically, a ruler with three markers 22 attached is swung from multiple directions within the shooting range of the video camera 21 to define the relative position of the video camera 21. Then, a right-angled triangular ruler with three markers 22 attached is installed at a corner of a partitioning formwork, and the formwork with the right-angled triangular ruler installed is photographed by the video camera 21 to define the origin and axial direction of the space. The information is compared with the pouring range K inputted in advance to recognize the pouring range K to be positioned in relative coordinates.

[0060] In addition, depending on the construction site, input the required compaction time, allowable pouring time, effective compaction range of vibrator B (radial direction, vertical direction), allowable movement of vibrator B during compaction (radial direction, vertical direction), specific radius of concrete top surface height, judgment tolerance value for grouping into the same lift, planned pouring height for each lift, and other setting values.

[0061] A measuring device 31 is attached to all vibrators B that will perform compaction. Specifically, the measuring device 31, with the marker 22 fixed to its upper surface, is attached to the cable B1 of each vibrator B using a fixing bracket 32. The attachment position of the fixing bracket 32 ​​to the cable B1 may be different for each vibrator B, and the distance D1 (see FIG. 2) between the center of the marker 22 and the bottom end of the vibrator B is measured for each vibrator B.

[0062] When pouring of concrete into the casting range K begins, the worker M places the vibrator B at an arbitrary position and sets up the cable B1, so that the vibrator B is in a vertical state. When the marker 22 is photographed by the video camera 21 in this state, the motion capture is analyzed to identify the three-dimensional coordinates of the marker 22. In other words, the planar position of the vibrator B can be identified.

[0063] Furthermore, if the measuring device 31 is activated, the laser range finder 3 measures the distance D2 (see FIG. 2) to the top surface C of the concrete being poured at a predetermined time interval. The height of the top surface of the concrete at this time can be calculated from this measured distance D2, the distance D3 from the laser range finder 3 to the marker 22, and the vertical coordinate of the marker 22.

[0064] The newly acquired concrete top surface height is applied to the range of the effective compaction radius or a square circumscribing it, and is stored in the memory of the calculation processing unit 11 as the completion of pouring for the circle indicating the height of the top surface of the concrete that has already been poured, which is centered on vibrator B just below that range. In other words, the pouring time is determined.

[0065] Once the pouring time has been determined, the time since pouring will not be updated for the height of the concrete surface in that area, no matter how much time has passed since then. On the other hand, for areas where the pouring time has not been determined, the time since pouring will be updated as time passes.

[0066] The recording of compaction by the vibrator B is started, for example, when the switch 33 of the measuring device 31 is turned on. Specifically, after the vibrator B is turned on and placed and oriented in a position for compacting the concrete, the time when the switch 33 of the measuring device 31 is turned on is set as the start time of compaction, and the time when the switch 33 of the measuring device 31 is turned off is set as the end time of compaction, and the compaction time is calculated. If this compaction time exceeds the required compaction time (for example, 10 seconds), the region in which the insertion depth and the effective compaction range are specified by the bottom end position of the vibrator B and the height of the top surface of the concrete is stored in the memory unit as the compaction range R1. Here, when the required compaction time has elapsed from the start time of compaction, the display terminal 4 or a lamp of the measuring device 31 may be configured to notify the worker M of the completion of compaction.

[0067] The display terminal 4 carried by worker M can display the top surface height of the concrete (display format Ha-Hd) reflecting the compaction range R1 and the elapsed time since the concrete was poured, from the first layer of pouring (see Figures 4, 7, etc.).

[0068] On the other hand, Fig. 9 is an example of the compaction range displayed on the display terminal 4 after multiple lifts (concrete layers) have been poured in the height direction. On the compaction management screen displayed on the display terminal 4, the user can switch between views that are easy to see, such as a bird's-eye view as in Fig. 9(a), a plan view as in Fig. 9(b), or a side view as in Fig. 9(c), to check the compaction range of each lift and the continuity of compaction of the upper and lower poured sections (compaction lap area).

[0069] Fig. 10 is also an example of a display that reflects the overlapping time displayed on the display terminal 4 after overlapping in the vertical direction. The overlapping management screen displayed on the display terminal 4 can be switched to a display that is easy for the user to see, such as a bird's-eye view as in Fig. 10(a), a plan view as in Fig. 10(b), or a side view as in Fig. 10(c), to enable the user to check whether the overlapping time is within the allowable time, or where there are places where overlapping should be done immediately.

[0070] Next, the operation of the concrete pouring management support device 1 of this embodiment will be described. The concrete pouring management support device 1 of this embodiment configured as described above includes a concrete measurement unit that measures the height of the top surface of the concrete over time, and a compaction time acquisition unit that acquires the start and end times of compaction by the vibrator B, and can specify the concrete compaction ranges R1 and R2 based on these measurement results. In addition, the pouring time is managed by the pouring management unit.

[0071] Furthermore, on the display terminal 4 which displays the compaction range and pouring time, the overlapping area (compaction lap area W) of the compaction ranges of the concrete poured above and below can be visually confirmed, making it easy to check the continuity of the compaction ranges of the upper and lower pours.

[0072] In detail, on the compaction management screen of the display terminal 4, the upper end periphery of the compaction range R1 of the lower layer concrete is displayed so that the lower end periphery of the compaction range R2 of the upper layer concrete, which is displayed semi-transparently, overlaps with the upper end periphery of the compaction range R1 of the lower layer concrete. The display of the compaction management screen can be switched to various viewpoints such as a bird's-eye view, a side view, and a plan view, so that the worker M who is pouring the concrete and the manager can easily visually check the continuity and length of the compaction lap area W in real time.

[0073] In addition, the pouring management screen of the display terminal 4 can display data that reflects the pouring time. In detail, the pouring management screen changes the display format according to the length of time that has elapsed since the concrete was poured, and when the pouring time is specified, the change in the display format stops at that point. The pouring management screen can also be switched to various viewpoints, such as a bird's-eye view, a side view, and a plan view.

[0074] Therefore, the worker M who is pouring the concrete and the manager can easily visually check in real time whether the allowable time for pouring has passed or which areas are running out of time. Then, for areas where the allowable time for pouring is approaching, the pouring work can be prioritized.

[0075] Furthermore, if a positioning system is adopted in which the reference point is a marker 22 attached to the cable B1 of the vibrator B, and the reference point measurement unit photographs the marker 22 with multiple video cameras 21 to perform motion capture, then highly accurate three-dimensional coordinates can be obtained without restrictions such as the sky being open.

[0076] Furthermore, if the laser distance meter 3 is used for measuring the concrete top surface C by the concrete measuring unit, the concrete top surface C, which fluctuates within the formwork where the amount of light is low, can be measured with high accuracy.

[0077] Furthermore, if the start time of compaction is set to the time when the switch 33 of the measuring device 31 is turned on after the vibrator B is ready to compact, and the end time is set to the time when the switch 33 of the measuring device 31 is turned off, the actual time during which the compaction is effectively performed by the vibrator B can be accurately recorded.

[0078] Although an embodiment of the present invention has been described in detail above with reference to the drawings, the specific configuration is not limited to this embodiment, and design changes that do not deviate from the gist of the present invention are included in the present invention.

[0079] For example, in the above embodiment, the case where the compaction time is determined by turning on and off the switch 33 of the measuring device 31 has been described, but the present invention is not limited to this, and the compaction time may be managed in conjunction with the switch of the vibrator B. The compaction time may also be automatically detected by a sensor such as an inclinometer. For example, if an inclinometer is mounted on the measuring device 31, and the length of continuous time during which the inclination angle is 5° or less while the vibrator B is in operation reaches the required compaction time, it is possible to determine that compaction is complete. [Explanation of symbols]

[0080] 1: Concrete pouring management support device 21: Video camera (reference point measurement section) 22: Marker 3: Laser distance meter (concrete measurement section) 4: Display terminal (display unit) B: Vibrator B1: Cable C: Concrete surface R1, R2: Compaction range W: Compaction lap area Ha-Hd:Display format

Claims

1. A concrete pouring management support device for managing pouring of cast-in-place concrete, a reference point measuring unit that measures, together with time, three-dimensional coordinates of a reference point for identifying the position of a vibrator used to compact the poured concrete; a concrete measuring unit that measures the height of the upper surface of the concrete over time from a position where a positional relationship with the reference point can be specified; A compaction time acquisition unit that acquires a start time and an end time managed as compaction by the vibrator; a compaction range determination unit that determines a compaction range of the concrete based on measurement results of the reference point measurement unit, the concrete measurement unit, and the compaction time acquisition unit; A pouring management unit that manages pouring time based on the upper surface height measured by the concrete measurement unit; A display unit that displays the compaction range and the pouring time, A concrete pouring management support device characterized in that the display unit makes it possible to visually confirm the overlapping areas of the compaction ranges of the concrete poured one above the other, and is capable of displaying a value that reflects the pouring time.

2. The concrete pouring management support device according to claim 1, characterized in that the display unit changes the display form depending on the length of time that has elapsed since the concrete was poured, and the change in the display form is stopped by identifying the pouring time.

3. The concrete pouring management support device of claim 1 or 2, characterized in that the display unit displays the overlapping area of ​​the compaction range in a display form that makes the compaction range of the concrete of at least one of the upper and lower layers transparent.

4. The concrete pouring management support device of claim 1 or 2, characterized in that the reference point is a marker attached to the cable of the vibrator, and the reference point measurement unit measures the three-dimensional coordinates by photographing the marker with multiple video cameras.

5. 5. The concrete pouring management support device according to claim 4, wherein the concrete measuring unit is a laser range finder mounted a predetermined distance below the reference point.

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