Management system for liner concrete installation

The system addresses sensor-based detection limitations by integrating compaction and detection into a single device, providing real-time concrete height information for automated and efficient tunnel lining concrete placement.

JP2024176254APending Publication Date: 2024-12-19TODA CORP +1
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Patent Information

Application Number
JP2023094682
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-06-08
Publication Date
2024-12-19

AI Technical Summary

Technical Problem

Conventional concrete placement systems in tunnel lining formwork face challenges in accurately detecting concrete position due to sensor limitations, increased complexity and cost with higher sensor density, maintenance difficulties in alkaline environments, and equipment procurement and installation challenges.

Method used

A system with a compaction device equipped with detection means that follows the concrete surface, a control system to manage compaction and pouring, and a display system to provide real-time height information, eliminating the need for separate sensors on the formwork and simplifying maintenance.

Benefits of technology

Enables accurate, real-time detection of concrete height, automates concrete placement, and reduces system complexity and maintenance efforts while maintaining precise control over pouring and compaction.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a management system for liner concrete installation capable of consecutively acquiring a filling state of concrete in a mold frame space in real time.SOLUTION: A management system 1 for liner concrete installation is provided with: installation means 10 capable of installing concrete C in a mold frame space B; a plurality of compaction means 20 moveable in a vertical direction along an outer surface of a mold frame body A2; a plurality of detection means 30 fixed on the compaction means 20, the detection means 30 capable of carrying out identification between a detected state detecting the concrete C and an undetected state being not in the detected state; calculation means 40 communicably connected to the plurality of detection means 30; and display means 60 communicably connected to the calculation means 40. The calculation means 40 acquires height information D of a concrete surface in the mold frame space B to transmit the same to the display means 60 on the basis of the detected state and / or the undetected state of the detection means 30, and the display means 60 displays the height information D of the concrete surface on a display screen 61.SELECTED DRAWING: Figure 1
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Description

[Technical field]

[0001] The present invention relates to a lining concrete pouring management system, and more particularly to a lining concrete pouring management system capable of continuously acquiring the filling status of concrete in a formwork space in real time. [Background technology]

[0002] In mountain tunnel construction, a movable tunnel lining form is placed inside the tunnel, and concrete is poured into the form space defined between the sprayed concrete surface or waterproof sheet surface and the skin plate surface of the form body to form the lining concrete. In detail, concrete is poured into the form space through multiple pouring holes provided in the form body, and the poured concrete is compacted with a vibrator to fill the form space. When pouring concrete, if there is a difference in the height of the concrete within the formwork space, the lateral movement of the concrete may cause the material to separate, so it is necessary to adjust the amount of concrete poured from adjacent horizontal pouring ports while pouring the concrete. In addition, pouring concrete from a high place can also cause material separation, so it is necessary to switch pouring ports in the vertical direction so that the drop height is within an appropriate range. For this reason, in the past, the pouring and compaction of concrete was managed by visually inspecting the state of concrete pouring within the form space through an inspection window provided in the form body.

[0003] Meanwhile, in recent years, technology has been developed that uses concrete sensors to "visualize" the pouring status of concrete within the formwork space. Patent document 1 discloses a system in which capacitance-type level sensors are installed on the outer surface of the lining formwork along the longitudinal and circumferential directions of the tunnel, and when it is determined based on position information from the level sensors that the deviation in concrete height along the length of the tunnel exceeds an acceptable range, the system switches to the next pouring pipe for pouring concrete based on the position information. In addition, concrete sensors are used in which a ribbon-shaped sensor cable is fixed to the reinforcement within the formwork space to detect the concrete pouring status, and then the sensor is buried in the lining concrete after detection. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent Publication No. 2022-003221 Summary of the Invention [Problem to be solved by the invention]

[0005] The conventional technology has the following problems. <1> The technology of Patent Document 1 detects the position of concrete in the form space using multiple sensors (points) on the form body, so it is not possible to accurately grasp the concrete position between the sensors. In order to improve the detection accuracy, it is necessary to increase the number of sensors and increase the density, but since the sensors need to be incorporated into the form body, the system becomes complicated and the introduction cost of the system increases. <2> Concrete sensors have a tendency for concrete to adhere to the detection terminal, and because they are used in highly alkaline environments, they require frequent maintenance. However, with the technology in Patent Document 1, the sensor is built into the surface of the formwork, making maintenance difficult and taking a long time to repair if the sensor malfunctions. <3> The concrete sensor fixed to the reinforcing bars is buried in the concrete for each span of the lining, which increases the procurement cost of the device. In addition, the work of fixing the sensor to the reinforcing bars for each span is time-consuming, which makes it difficult to install.

[0006] An object of the present invention is to provide a lining concrete pouring management system that can solve the problems of the conventional technology as described above. [Means for solving the problem]

[0007] The lining concrete pouring management system of the present invention comprises a pouring means capable of pouring concrete into the formwork space, a plurality of compaction means capable of moving in an upward and downward direction along the outer surface of the formwork body, a detection means fixed to the compaction means and capable of distinguishing between a detection state in which concrete is detected and a non-detection state in which concrete is not detected, a calculation means communicatively connected to the plurality of detection means, and a display means communicatively connected to the calculation means, wherein the calculation means acquires height information of the concrete surface within the formwork space based on the detection states and / or non-detection states of the plurality of detection means and transmits it to the display means, and the display means displays the height information of the concrete surface on a display screen.

[0008] The lining concrete pouring management system of the present invention includes a control means communicatively connected to a plurality of compaction means and a plurality of detection means, and has an ascending mode in which the control means moves the compaction means upward during a detection state and stops the movement of the compaction means when the detection state is reached, a compaction mode in which the compaction means compacts the concrete in the formwork space for a predetermined period of time, and a descending mode in which the compaction means moves downward during a non-detection state and stops the movement of the compaction means when the detection state is reached, and the control means may control each compaction means to repeat the ascending mode until the compaction means reaches a preset height, implement the compaction mode when the compaction means reaches the set height, implement the descending mode after the compaction mode, and return to the ascending mode after the descending mode.

[0009] The lining concrete pouring management system of the present invention comprises a pouring means which is a plurality of pouring ports connected to the formwork body, the plurality of pouring ports being arranged in multiple rows at different heights, a pressure-feeding device capable of pressure-feeding concrete to the pouring ports, and a piping switching device capable of switching the connection of piping between the plurality of pouring ports and the pressure-feeding device, and a control means which is communicatively connected to the pouring means, and which controls the piping switching device to switch the connection of the piping with the pressure-feeding device from the lower row of pouring ports to the upper row of pouring ports based on height information of the concrete surface.

[0010] The lining concrete pouring management system of the present invention may be configured so that the pouring means is provided with a sealing cover shaped to seal the pouring port, and the control means controls the piping switching device to seal the lower row of pouring ports with the sealing covers based on height information of the concrete surface.

[0011] The lining concrete pouring management system of the present invention may have a control means that controls the pressure delivery device so that concrete is poured until the height of the concrete reaches a set height, and pouring is stopped when the height of the concrete reaches the set height.

[0012] The lining concrete pouring management system of the present invention may have a display means that is an augmented reality display device via a smartphone, a head-mounted display, or a tablet. Effect of the Invention

[0013] The lining concrete pouring management system of the present invention has at least one of the following effects. <1> By continuously detecting the concrete surface by having the detection terminal attached to the compaction device follow the rise of the concrete surface due to pouring and the sinking due to compaction, the height of the concrete surface at multiple measurement points can be grasped continuously in real time. <2> Since the compaction device also serves as the detection means, there is no need to incorporate a separate concrete sensor into the lining formwork, and maintenance of the detection means is also easy. <3> When a control means is provided, information on the height of the concrete surface can be used to control the switching of pipes, thereby achieving automated construction of the lining concrete. [Brief description of the drawings]

[0014] [Figure 1] Illustration of the lining concrete pouring management system [Diagram 2] Lining concrete pouring management system configuration diagram [Diagram 3] Illustration of concrete pouring method [Figure 4] Illustration of compaction method [Diagram 5] Illustration of compaction device and detection means [Figure 6] Illustration of display means [Figure 7A] Illustration of ascent mode [Figure 7B] Illustration of ascent mode [Figure 7C] Illustration of ascent mode [Figure 7D] Illustration of ascent mode [Figure 7E] Illustration of ascent mode [Figure 7F] Illustration of compaction mode [Figure 7G] Descending mode diagram [Figure 7H] Descending mode diagram [Figure 7I] Illustration of ascent mode DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] Hereinafter, the lining concrete pouring management system of the present invention will be described in detail with reference to the drawings. EXAMPLES

[0016] [Lining concrete pouring management system] <1> Overall configuration (Fig. 1, Fig. 2) The lining concrete pouring management system 1 is a system for managing the lining concrete pouring process. One of the features of the lining concrete pouring management system 1 is that it can continuously obtain height information D of the concrete surface in the form space B and display it in real time. Furthermore, in this example, based on the height information D of the concrete surface, the movement and compaction of the compaction device, the switching of piping, and the amount of concrete poured are automatically controlled. The lining concrete pouring management system 1 is attached to the lining formwork A and comprises at least a pouring means 10, a plurality of compaction means 20, a plurality of detection means 30 fixed to the compaction means, a calculation means 40 communicatively connected to the plurality of detection means 30, and a display means 60 communicatively connected to the calculation means 40. In this example, it further comprises a control means 50. The control means 50 is communicatively connected to each of the casting means 10, the compaction means 20, the detection means 30, and the calculation means 40. Here, "communicatively connected" means that each component is connected so as to be able to transmit electrical signals in one or two directions, regardless of whether the connection is wired or wireless.

[0017] <1.1> Lining formwork (Fig. 1) The lining formwork A comprises at least a base A1 that is movable within the tunnel in the tunnel axial direction, and a formwork body A2 that is erected on the base A1 so as to be freely raised and lowered. The base A1 is a frame-like body formed by connecting a number of steel members arranged in a roughly gate-like shape in the extension direction of the tunnel. The formwork body A2 is a concrete formwork having a substantially semi-cylindrical shape. Between the base A1 and the formwork body A2, an expansion device is provided which expands the formwork body A2 when pouring the concrete C. A form space B for pouring concrete C is defined between the outer surface of the form body A2 and the sprayed concrete surface or the waterproof sheet surface. A plurality of inspection windows A3 that can be opened and closed are provided on both shoulders of the formwork body A2 along the longitudinal direction of the base A1.

[0018] <1.2> Arrangement of each component The lining concrete pouring management system 1 is incorporated into the lining formwork A, for example, as follows. The concrete pouring means 10 is disposed within the base A1, and a concrete pouring port 13 penetrates the formwork body A2 from the inside to the outside. A plurality of compaction means 20 are suspended from the outer surfaces of both sides of the formwork body A2 through inspection windows A3 at the top of the formwork body A2. The multiple detection means 30 are integrally provided within the compaction device 21 of the compaction means 20. The calculation means 40 and the control means 50 are constructed as a server equipped with a central processing unit (CPU), a storage device, etc., and are placed within the base A1. The display means 60 is carried by a worker as a tablet terminal. However, the above is merely one example, and for example, the calculation means 40 and the control means 50 may be integrated with the display means 60 and built into a tablet terminal.

[0019] <2> Pouring method (Fig. 3) The pouring means 10 is a means for pouring concrete C into the formwork space B. In this example, the pouring means 10 is a combination of a concrete pumping device (not shown) placed in the tunnel, a branch pipe 11 attached to the top of the formwork body A2, a pumping pipe 12 connecting the concrete pumping device and the branch pipe 11, a plurality of pouring ports 13 provided in the formwork body A2, a plurality of piping 14 connecting the branch pipe 11 and the plurality of pouring ports 13, sealing covers 15 provided on each pouring port 13, and a piping switching device 16 which switches the piping 14 depending on the progress of pouring. The multiple pouring holes 13 are arranged at predetermined intervals along the circumferential direction of the surface of the formwork body A2 to form a row, and multiple such rows are arranged in parallel in the longitudinal direction of the lining formwork A. A piping switching device 16 is provided at each pouring port 13. The piping switching device 16, under the control of the control means 50, switches the connection between the pouring port 13 and the piping 14 according to the progress of pouring, changing the position of the pouring port 13 into which the concrete C is poured, and seals the pouring port 13 into which the concrete C is not poured with a sealing lid 15. The sealing lid 15 has a surface flush with the surface of the formwork body A2, so that it functions as a formwork surface after the pouring port 13 is sealed. However, the configuration of the concrete pouring means 10 is not limited to the above, and for example, the piping switching device 16 may be operated by an operator without relying on the control means 50. In addition, instead of providing a piping switching device 16 for each pouring port 13, it may be provided in the branch pipe 11 to centrally manage the switching of the piping 14.

[0020] <3> Compaction method (Figure 4) The compaction means 20 is a means for compacting the concrete C in the form space B. In this example, the compaction means 20 is a combination of a compaction device 21, a suspension rope 22 that suspends the compaction device 21, and a lifting device 23 that raises and lowers the compaction device 21 by paying out or winding up the suspension rope 22. In detail, for example, the suspending rope 22 may be a flexible wire cable, and the lifting device 23 may be a combination of a reel that winds up a power cable and an electric motor that drives the reel. The lifting device 23 is installed on the upper part of the base A1, the suspension rope 22 extends to the outside of the formwork body A2 through the inspection window A3, and the compaction device 21 is suspended from the surface of the formwork body A2. In this example, seven compaction means 20 are arranged on each side of the formwork body A2 along the longitudinal direction of the lining formwork A.

[0021] <3.1> Compaction equipment (Fig. 5) The compaction device 21 is a device that moves in the vertical direction along the formwork body A2 while compacting the concrete C. Here, the "vertical direction" is used to mean a slope of the surface of the formwork body A2. In this example, the compaction device 21 is an electric vibrator consisting of a main body 21a, a rod-shaped vibration part 21b extending from the main body 21a, and a moving part 21c that slides the vibration part 21b up and down along the surface of the formwork body A2. The main body 21a includes a battery and a vibration generator, and vibrates the vibration unit 21b. The main body 21a includes a detection means 30, which will be described later. The moving portion 21c is a four-wheel guide roller attached to the main body portion 21a.

[0022] <4> Detection means (Fig. 5) The detection means 30 is a means for detecting the concrete C. In this example, an applied voltage type concrete sensor equipped with a detection terminal 31 is used as the detection means 30. The applied voltage type concrete sensor is particularly suitable as the detection means 30 because it can distinguish between concrete and bleeding water and detect only concrete. The detection means 30 is built into the main body 21a of the compaction device 21, and the detection terminal 31 is exposed on the surface of the main body 21a. A spray-type sensor cleaner for removing concrete C adhering to the detection terminal 31 may be provided around the detection terminal 31. The detection means 30 distinguishes between a detection state in which the detection terminal 31 is in contact with the concrete C and a non-detection state in which the detection terminal 31 is not in a detection state, and transmits the distinguished result to the calculation means 40.

[0023] <5> calculation means The calculation means 40 is a means for generating height information D of the concrete surface. The calculation means 40 generates height information D of the concrete surface within the formwork space B based on the detection state and / or non-detection state of the multiple detection means 30, and transmits the height information D to the control means 50 and the display means 60. In detail, the height information D is generated, for example, in the following manner. When the compaction device 21 is moving vertically, when the detection means 30 attached to the compaction device 21 switches from a detection state to a non-detection state, or from a non-detection state to a detection state, the boundary between the two states is recognized as a concrete surface. When the compaction device 21 is stopped within the formwork space B, when the detection means 30 switches from a non-detection state to a detection state as the concrete surface rises, or when the detection means 30 switches from a detection state to a non-detection state as the concrete surface sinks due to compaction of the concrete C, the boundary between the two states is recognized as the concrete surface. The calculation means 40 calculates the height of the compaction device 21 from the winding amount of the suspension rope 22 at the time when the concrete surface is recognized, and generates height information D, which is information on the height of the concrete surface corresponding to each compaction device 21, by adding or subtracting the installation position of the detection terminal 31 in the compaction device 21 to the calculation result.

[0024] <6> Display means (Figure 6) The display means 60 is a means for displaying height information D of the concrete surface. The display means 60 receives the height information D of the concrete surface from the calculation means 40 and displays it on the display screen 61. In this example, a tablet terminal wirelessly connected to the computing means 40 is used as the display means 60. A plan view of the form space B expanded in a plane is displayed on the display screen 61 of the tablet device, and the height of the concrete surface at each part in the longitudinal direction of the form body A2 is displayed on the plan view. This allows the worker to adjust the amount of concrete poured from each pouring port 13 in real time while checking the height of the concrete surface at each part displayed on the tablet device. The display screen 61 is not limited to a plan view of the form space B, but may be a 3D view that three-dimensionally displays the height of the concrete surface within a 3D model that mimics the form space B, so that the filling status of the concrete C within the form space B can be intuitively recognized.

[0025] <7> Control Means The control means 50 is a means for controlling the other components. In this example, the control means 50 can automatically control the movement and compaction of the compaction means 20, the switching of the pipes 14, and the amount of concrete C poured.

[0026] <8> Control of compaction methods The control means 50 controls the compaction means 20 by switching between at least three modes: an up mode M1, a compaction mode M2, and a down mode M3. In the ascending mode M1, the compaction device 21 is moved upward while the detection means 30 is in a detecting state, and the movement of the compaction device 21 is stopped when the detection means 30 is in a non-detecting state. In the compaction mode M2, the concrete C is compacted by the compaction device 21 for a predetermined time. In the descending mode M3, the compaction device 21 is moved downward while the detection means 30 is in a non-detecting state, and when the detection means 30 is in a detecting state, the movement of the compaction device 21 is stopped. The control means 50 controls the compaction means 20 so as to repeat the ascending mode M1 until the compaction device 21 reaches a preset height E, execute the compaction mode M2 ​​when the compaction device 21 reaches the preset height E, execute the descending mode M3 after the compaction mode M2, and return to the ascending mode M1 after the descending mode M3. Here, the set height E is a height that specifies the compaction by the compaction device 21, and can be set at intervals of approximately 40 to 50 cm from the bottom of the form space B, for example, based on the amount of concrete C poured in one pour within the form space B. In detail, the compaction means 20 is controlled, for example, as follows.

[0027] <8.1> Ascending mode A compaction device 21 is disposed on the surface of the formwork body A2 below a set height E, and concrete C is poured into the formwork space B (FIG. 7A). As the concrete C is poured, the concrete surface rises, and when the concrete surface comes into contact with the detection terminal 31 on the surface of the compaction device 21 (FIG. 7B), the detection means 30 recognizes the detection state of the concrete C and transmits a detection signal to the control means 50. Based on the detection signal, the control means 50 issues a command to the lifting device 23, winds up the suspending ropes 22, and moves the compaction device 21 upward (FIG. 7C). When the compaction device 21 moves upward and the detection terminal 31 is exposed above the concrete surface, the detection means 30 recognizes the non-detection state of the concrete C and stops sending the detection signal to the control means 50. Based on the stop of the detection signal, the control means 50 stops winding up the lifting device 23 and stops the movement of the compaction device 21. As the concrete C is poured, the concrete surface rises, and when the concrete surface again comes into contact with the detection terminal 31 on the surface of the compaction device 21 (Figure 7D), the control means 50 moves the compaction device 21 upward in the same manner as described above. The above-described ascent mode M1 is repeated, and when a predetermined position of the compaction device 21 (for example, the position of the detection terminal 31) reaches the set height E (FIG. 7E), the control means 50 switches to the compaction mode M2.

[0028] <8.2> Compaction mode When the position of the compaction device 21 reaches the set height E (FIG. 7E), the control means 50 issues a command to the compaction means 20 to have the compaction device 21 compact the concrete C (FIG. 7F). The compaction time can be set appropriately, but is preferably about 5 to 15 seconds. As the concrete is compacted, the concrete surface sinks and the detection terminal 31 becomes exposed above the concrete surface. After compaction is completed, the control means 50 switches to the lowering mode M3.

[0029] <8.3>Descent mode After the compaction for a predetermined period of time has ended, the control means 50 issues a command to the lifting device 23 to pay out the suspending ropes 22 and move the compaction device 21 downward (FIG. 7G). When the compaction device 21 moves downward and the detection terminal 31 comes into contact with the concrete surface (FIG. 7H), the detection means 30 recognizes the detection state of the concrete C and transmits a detection signal to the control means 50. Based on the detection signal, the control means 50 switches back to the ascending mode M1, issues a command to the lifting device 23, winds up the suspending ropes 22, and moves the compaction device 21 upward (FIG. 7I). The above cycle is repeated until concrete C is poured up to the shoulder of formwork space B. After pouring concrete up to the shoulder portion, the compaction device 21 is withdrawn through the inspection window A3, and after the inspection window A3 is closed, concrete is poured into the crown portion of the form space B from the blow-up outlet at the top of the form body A2; however, these steps are not the gist of the present invention and will not be described in detail here.

[0030] <8.4> Characteristics of the control of compaction measures In this example, by repeating the ascending mode M1, the compaction device 21 is moved in small increments in accordance with the rise of the concrete surface, and by using the descending mode M3, it is caused to follow the subsidence of the concrete surface due to compaction, so that height information D of the concrete surface can be continuously obtained in parallel with the compaction of the concrete C. In addition, since changes in the height of the concrete surface can be grasped in real time, various controls that require immediate coordination with other devices, such as switching the pipes 14 and pouring the concrete C, which will be described later, become possible.

[0031] <9> Pipe switching control The control means 50 can switch and control the pipes 14 based on the height information D of the concrete surface. In an example having a lower concrete pouring port 13a, a middle concrete pouring port 13b, and an upper concrete pouring port 13c which are successive in the vertical direction, the switching control of the piping 14 is performed, for example, as follows. When pouring begins, the lower pouring port 13a is connected to a concrete pumping device, and concrete C is poured into the formwork space B from the lower pouring port 13a. When concrete C is filled into the formwork space B and the concrete surface approaches a predetermined distance from the lower pouring port 13a, the control means 50 stops the concrete pumping device based on height information D of the concrete surface, and at the same time controls the piping switching device 16 to seal the lower pouring port 13a with the sealing cover 15. Next, the control means 50 controls the piping switching device 16 to connect the concrete pumping device and the middle pouring port 13b via the piping 14, and pour the concrete C from the middle pouring port 13b. Similarly, when the concrete surface approaches a predetermined distance from the middle pouring port 13b, the control means 50 stops the pumping of concrete, seals the middle pouring port 13b with a sealing cover 15, and connects the concrete pumping device to the upper pouring port 13c with piping 14 to pour concrete C from the upper pouring port 13c. As described above, the control means 50 switches and controls the piping 14 so that concrete C is always poured from the pouring port 13 that is located above and closest to the concrete surface, making it possible to automatically pour the concrete C while maintaining a predetermined pouring height.

[0032] <10> Controlling the amount of concrete poured The control means 50 can control the amount of concrete C poured by the pouring means 10 based on the height information D of the concrete surface. In detail, first, the pouring height for each layer is set in the control means 50. The pouring height is, for example, 40 to 50 cm from the bottom surface of the formwork space B or the pouring height of the lower layer. The control means 50 continuously acquires height information D of the concrete surface from the calculation means 40 while pouring concrete C into the formwork space B using the pouring means 10, and stops pouring by the concrete pumping device when the height of the concrete surface based on the height information D reaches a preset pouring height. Here, the control means 50 may stop pouring from all pouring ports 13 when all of the multiple detection means 30 have reached the pouring height, or may stop pouring sequentially from the pouring port 13 closest to the detection means 30 that has reached the pouring height. EXAMPLES

[0033] [Example of combining AR technology] The display means 60 may be an augmented reality (AR) display device 62 that utilizes AR technology. AR technology is a technology that virtually extends reality, and is specifically implemented as a device that displays a virtual image overlaid on a real image on a display. In this example, a head-mounted display that can be worn by a worker on his head is used as the display device 62, and the height of the concrete surface in the formwork space B, the position of the pouring port 13, etc. are superimposed on an image of the actual inside of the tunnel displayed on the head-mounted display. In this example, the amount of concrete in the formwork space B can be intuitively recognized and construction managed without having to compare the actual construction scene with the display, thereby improving the construction accuracy and efficiency of pouring the concrete C. The display device 62 is not limited to a head-mounted display, and may be a smartphone or tablet terminal programmed with AR technology. [Explanation of symbols]

[0034] 1 Lining concrete pouring management system 10 Pouring means 11 Branch pipe 12 Pressure Pipe 13 pouring hole 14 Piping 15 Sealing lid 16 Piping switching device 20 Compaction means 21 Compaction equipment 21a Main body 21b Vibrating part 21c Moving part 22 Hanging rope 23 Lifting device 30 Detection methods 31 Detection terminal 40 Calculation means 50 Control Means 60 Display means 61 Display screen 62 Display device A Lining formwork A1 Base A2 Formwork body A3 Inspection window B Formwork space C. Concrete D Height Information E Setting height

Claims

1. A lining concrete pouring management system applied to a process of pouring concrete into a form space between an outer surface of a substantially semi-cylindrical form body and an inner surface of a tunnel, A pouring means capable of pouring concrete into the form space; A plurality of compaction means movable in a vertical direction along an outer surface of the formwork body; A plurality of detection means fixed to the compaction means, the detection means being capable of distinguishing between a detection state in which concrete is detected and a non-detection state that is not the detection state; A computing means communicatively connected to the plurality of sensing means; A display means communicatively connected to the computing means, The calculation means acquires height information of the concrete surface in the form space based on the detection state and / or non-detection state of the plurality of detection means, and transmits the height information to the display means; The display means displays the height information of the concrete surface on a display screen. Lining concrete pouring management system.

2. A control means communicatively connected to the plurality of compaction means and the plurality of detection means; The control means an ascending mode in which the compaction means is moved upward during the detection state and the movement of the compaction means is stopped when the non-detection state is reached; a compaction mode in which the concrete in the form space is compacted for a predetermined time by the compaction means; a lowering mode in which the compaction means is moved downward during the non-detection state and the movement of the compaction means is stopped when the detection state is reached; The control means controls each of the compaction means so that the compaction means repeats the ascent mode until the compaction means reaches a preset height, executes the compaction mode when the compaction means reaches the preset height, executes the descent mode after the compaction mode, and returns to the ascent mode after the descent mode. The lining concrete pouring management system according to claim 1.

3. The casting means is a plurality of casting ports that communicate with the formwork body, the plurality of casting ports being arranged in a plurality of rows at different heights, a pressure-feeding device that can pump concrete to the casting ports, and a piping switching device that can switch the connection between the plurality of casting ports and the piping of the pressure-feeding device. The control means is communicatively connected to the casting means, The control means controls the piping switching device to switch the connection of the piping with the pressure feeding device from the lower row of the pouring port to the upper row of the pouring port based on the height information of the concrete surface. The lining concrete pouring management system according to claim 2.

4. The casting means includes a sealing lid having a shape capable of sealing the casting port, The control means controls the piping switching device so as to seal the lower row of pouring ports with the sealing lid based on the height information of the concrete surface. The lining concrete pouring management system according to claim 3.

5. The control means controls the pumping device to pour concrete until the height of the concrete reaches the set height, and to stop pouring when the height of the concrete reaches the set height. The lining concrete pouring management system according to claim 3.

6. The display means is an augmented reality display device via a smartphone, a head-mounted display, or a tablet. A lining concrete pouring management system according to any one of claims 1 to 5.

Citation Information

Patent Citations

  • Sensor used in lining concrete placing equipment

    JP2022003221A