Lining space measurement system

Abstract

To provide a lining space measurement system capable of automatically measuring the lining space including a concrete pouring height.SOLUTION: A lining space measurement system 1 comprises a plurality of millimeter-wave radar distance measuring devices 12 that are installed facing outward in a direction approximately normal to an outer surface of a tunnel lining formwork 11 and that can measure a distance to a target object, which is a sprayed concrete CS or steel support, by passing through a waterproof sheet, and a control device 13 to which distance information and radio wave intensity information are input from the millimeter-wave radar distance measuring devices 12. The control device 13 calculates the planned pouring volume of the lining concrete based on the distance information and radio wave intensity information acquired from the millimeter-wave radar distance measuring devices 12. Furthermore, if the control device 13 cannot measure the radio wave intensity information from the millimeter-wave radar distance measuring devices 12, it sets the concrete pouring height information to the measuring device height information of the millimeter-wave radar distance measuring devices 12.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a winding space measurement system, a winding space measurement method, a winding space concrete pouring system, and a winding space concrete pouring method for measuring a winding space in tunnel construction. [Background technology]

[0002] Conventional methods for measuring the lining space include manual measurement by workers using measuring rods. However, this method requires manpower and man-hours, increasing the worker's workload. Furthermore, because measurements are performed manually and visually by workers, the measurement results lack objectivity and reliability, and high accuracy cannot be achieved. When waterproofing is performed using a waterproof sheet, depending on the tension of the waterproof sheet, it can be difficult to manually press measuring rods against the surface of the shotcrete or steel support, resulting in reduced accuracy. It is also difficult to determine whether the object being pressed against is shotcrete or steel support. Furthermore, measurements from the few pouring windows or end panels are limited in their ability to measure the lining space, making it difficult to achieve high accuracy for the entire lining space. Furthermore, as a result, it is difficult to accurately calculate the planned pour volume. Furthermore, when pouring concrete into the lining space, the pour height is visually confirmed through a window in the center column. This means that controlling the pouring height is time-consuming and the accuracy is low, which means that adjusting the appropriate pouring amount and selecting the pouring window when pouring concrete takes time and cannot be done with high accuracy.

[0003] To solve the problems of manual measurement, such as the manpower, effort, workload, and accuracy, there is a conventional method that uses a 3D scanner and a total station (see Patent Document 1). However, even with this conventional method, there are problems in that measurements must be taken with a 3D scanner before the center is installed, which requires extra man-hours, and in that the concrete pouring height cannot be controlled. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2022-61417 Summary of the Invention [Problem to be solved by the invention]

[0005] In view of these problems, the present invention aims to provide a winding space measurement system, a winding space measurement method, a winding space concrete pouring system, and a winding space concrete pouring method that are capable of automatically measuring the winding space, including the concrete pouring height. [Means for solving the problem]

[0006] The winding space measurement system A plurality of millimeter wave radar distance measuring devices are installed facing outward in a direction approximately normal to the outer surface of the center and capable of measuring the distance to the target object, which is sprayed concrete or steel support, by passing through the waterproof sheet; and a control device to which distance information and radio wave intensity information are input from the millimeter wave radar type distance measuring device.

[0007] The winding space measurement method using the winding space measurement system includes: The control device a measuring instrument height information setting step for setting in advance a first threshold value, which is a threshold value of the radio wave intensity information for identifying whether the object is a sprayed concrete or a steel support, and measuring instrument height information, which is height information of the millimeter wave radar distance measuring instrument; a measuring device information acquisition step of acquiring the distance information and the radio wave intensity information from the millimeter wave radar type distance measuring device; an object information setting step of setting object information for the millimeter wave radar type distance measuring device to steel support if the radio wave intensity information from the millimeter wave radar type distance measuring device is greater than the first threshold value, and to sprayed concrete if the radio wave intensity information is less than the first threshold value; a distance information correction step in which, when the object information for the millimeter-wave radar distance measuring instrument is a steel support, the distance information is corrected by adding the protruding height of the steel support from the surface of the sprayed concrete, or by setting the distance information to an average value of the distance information in the vicinity of the millimeter-wave radar distance measuring instrument in which the object information is a steel support and the object information is sprayed concrete; The method includes a planned pouring amount calculation step of calculating the planned pouring amount of lining concrete based on the distance information for the millimeter wave radar distance measuring device.

[0008] The winding space measurement method comprises: The control device After starting concrete pouring, the millimeter wave radar distance measuring device acquires the radio wave intensity information from the millimeter wave radar distance measuring device. a pouring height information setting step in which, if the radio wave intensity information from the millimeter wave radar type distance measuring device cannot be measured, the object information for the millimeter wave radar type distance measuring device is reset to lining concrete, and pouring height information is set to the measuring device height information of the millimeter wave radar type distance measuring device whose object information is lining concrete; If the pouring is not completed, the process returns to the pouring measuring instrument information acquisition step, and It further includes:

[0009] A concrete pouring system for a winding space using the winding space measurement method, Further provided with a concrete pump, or a concrete pump and a plurality of piping switching devices, The control device controls the concrete pump, or controls the concrete pump and the piping switching device.

[0010] The concrete pouring method for the winding space using the winding space concrete pouring system includes: The control device Between the pouring height information setting step and the repeating step, a pouring amount calculation step is performed, in which the pouring height information and the distance information for the millimeter wave radar distance measuring device are used to calculate the concrete pouring amount of the concrete pump, or the concrete pump is used to calculate the concrete pouring amount and the piping switching device is selected; An automatic pouring step of controlling the concrete pump, or controlling the concrete pump and the piping switching device, based on the result of the concrete pouring amount calculation, or the result of the concrete pouring amount calculation and the selection result of the piping switching device, and pouring concrete; This includes: [Effects of the Invention]

[0011] According to the present invention, it is possible to automatically measure the winding space, including the concrete pouring height. [Brief explanation of the drawings]

[0012] [Figure 1] FIG. 1 is a cross-sectional view seen from the front side, schematically illustrating a winding space measurement system configured to implement a winding space measurement method in a first embodiment, installed in a tunnel. [Figure 2] FIG. 2 is a flowchart showing steps of a winding space measurement method in the first embodiment. [Figure 3] 10A and 10B are schematic diagrams showing the radio wave intensity during distance measurement in the winding space measurement method in the first embodiment, where (a) shows the case where the object is sprayed concrete, (b) shows the case where the object is steel support, and (c) shows the case where the object is lining concrete. [Figure 4] Figure 1 shows the situation during concrete pouring. [Figure 5] FIG. 10 is a cross-sectional view from the front side, showing a schematic state of a concrete pouring system for a winding space configured to carry out a method for pouring concrete for a winding space in a second embodiment, installed inside a tunnel. [Figure 6]FIG. 10 is a flowchart showing steps of a method for pouring concrete into a lining space in a second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0013] Hereinafter, an embodiment of the winding space measurement method according to the present invention will be described with reference to the drawings.

[0014] In this application, each term is defined as follows. "Measurement of the winding space" includes measurement of the winding space before concrete is poured and measurement of the winding space, including the concrete pour height, during concrete pouring. "Normal direction" refers to the direction of a line perpendicular to the tangent plane on the curved surface of the center tube's outer surface, i.e., the direction perpendicular to the curved surface. "Approximately normal direction" does not necessarily need to be an exact normal direction; it is sufficient to be approximately normal. "Control device" refers to a device, such as a personal computer (especially a laptop or tablet), that has an external input / output unit, a memory unit and calculation unit for storing information (including externally input information) and executing conditional statements and calculations using a program, and a display unit for displaying calculation results numerically and graphically. "Height information of each millimeter-wave radar distance measuring device" refers to information on the height of each millimeter-wave radar distance measuring device from a reference position, such as the tunnel floor. [Example]

[0015] This section describes a winding space measurement method using a winding space measurement system 1 that measures the winding space S of a tunnel using a center 11 for pouring concrete onto the tunnel wall surface after the spraying process in tunnel construction.

[0016] [System configuration] The configuration of the winding space measurement system 1 configured to implement the winding space measurement method of this embodiment is shown below. Figure 1 shows a cross-sectional view seen from the front side, which schematically illustrates the state of the winding space measurement system 1 configured to implement the winding space measurement method of this embodiment, installed in a tunnel.

[0017] The winding space measurement system 1 comprises a center 11, a plurality of millimeter-wave radar distance measuring devices 12 installed on the center 11 facing outward in a direction approximately normal to the outer surface of the center 11 and capable of measuring the distance to the target object, which is sprayed concrete CS or steel support work T, by passing through a waterproof sheet H, and a control device 13 into which distance information and radio wave intensity information are input from each millimeter-wave radar distance measuring device 12.

[0018] As shown in Figure 1, the lining space S is a space surrounded by the shotcrete CS and the outer surfaces of the top form TF, side form SF, and bottom form BF (hereinafter abbreviated as "external surface of center (11)"), which are the outer surfaces of the center 11. Note that in Figure 1, the steel support T that exists on the shotcrete CS in the lining space S is not shown (the same applies to Figures 4 and 5 described below).

[0019] The control device 13 is placed at the leg position of the gantry G, as shown in Figure 1, and the status of the system (e.g., distance information and radio wave intensity information of each millimeter-wave radar distance measuring device 12) is displayed so that the worker can understand it, for example, on a display monitor included in the control device 13.

[0020] The millimeter-wave radar distance measuring devices 12 are installed in holes drilled in the outer surface of the center tunnel 11 so that the heads of the millimeter-wave radar distance measuring devices 12 can be exposed, facing outward in a direction approximately normal to the outer surface of the center tunnel 11. The millimeter-wave radar distance measuring devices 12 are arranged circumferentially, for example, seven per circumference as shown in Figure 1, and are arranged at intervals of, for example, 1.5 m in the tunnel extension direction (not shown). The middle and end sections in the tunnel extension direction are measurement points for as-built management, so it is necessary to install millimeter-wave radar distance measuring devices 12 there. The more millimeter-wave radar distance measuring devices 12 installed in the circumferential and tunnel extension directions, the more accurately the lining space S can be measured, and as a result, the more accurately the planned pouring volume of the lining concrete CC can be calculated. Here, the control device 13 receives distance information and radio wave intensity information from each millimeter wave radar distance measuring device 12, and the communication method with the millimeter wave radar distance measuring device 12 may be either wired or wireless.

[0021] [Winding space measurement method] <Summary> The winding space measurement method of this embodiment is described below. Also, Figure 2 shows the flow of this winding space measurement method. Here, the winding space measurement method of this embodiment is a winding space measurement method in which the control device 13 measures and judges the winding space S. Therefore, the steps below do not include the process of installing the winding space measurement system 1 in advance at a predetermined position in the tunnel, which is necessary for actual work, i.e., the center setting process, or the process of installing pipes to transport the lining concrete CC before the start of concrete pouring.

[0022] In addition, the control of the amount of concrete poured and the control of piping during concrete pouring may be performed manually by an operator or automatically as shown in Example 2 described below, but are not included in the following steps.

[0023] <Steps for setting measuring instrument height information, etc.> A first threshold value, which is a threshold value of radio wave intensity information for identifying whether the target object is a shotcrete CS or a steel support T, and each measuring instrument height information, which is height information of each millimeter wave radar distance measuring instrument 12, are set in advance. Here, each measuring instrument height information is assumed to include individual information of the corresponding millimeter wave radar distance measuring instrument 12.

[0024] The height information of each measuring instrument does not have to be the actual height of each millimeter wave radar distance measuring instrument 12. It may be the height of the lining concrete CC when each millimeter wave radar distance measuring instrument 12 first detects the lining concrete CC during concrete pouring.

[0025] <Measurement instrument information acquisition step> Distance information and radio wave intensity information are acquired from each millimeter wave radar distance measuring device 12. As a prerequisite for this step, it is assumed that the devices have been centered at least prior to this step. It is also assumed that each piece of distance information and radio wave intensity information includes individual information about the corresponding millimeter wave radar distance measuring device 12.

[0026] The individual information may be acquired and distinguished by the fact that the individual information is included in the distance information and radio wave intensity information received from each millimeter wave radar distance measuring device 12. Alternatively, the individual information may be acquired and distinguished by the fact that the receiving frequencies and receiving ports from each millimeter wave radar distance measuring device 12 are different.

[0027] In this embodiment, it is possible to acquire the respective distance information and radio wave intensity information directly from each millimeter wave radar distance measuring device 12. However, as another example, a method may be adopted in which the control device controls the emission of radio waves from each millimeter wave radar distance measuring device and acquires the reflected wave signals, thereby generating and acquiring the distance information and radio wave intensity information.

[0028] <Object information setting step> The object information for each millimeter wave radar distance measuring device 12 is set to steel support if the radio wave intensity information from each millimeter wave radar distance measuring device 12 is greater than a first threshold, and to shotcrete if it is less than the first threshold. Here, each object information includes individual information of the corresponding millimeter wave radar distance measuring device 12.

[0029] Millimeter waves do not completely reflect concrete but penetrate it to some extent, resulting in a weaker radio wave intensity of the millimeter wave reflected wave RF compared to the metal material of the steel support T. Therefore, this step can be judged using radio wave intensity information. Figures 3(a) and 3(b) illustrate this situation. If the shotcrete CS and the steel support T are waterproofed by covering them with a waterproof sheet H, it is difficult to visually determine whether the object being measured is the steel support T or the shotcrete CS. On the other hand, when millimeter waves are used in a distance measuring device, as shown in Figures 3(a) and 3(b), millimeter waves (radiated millimeter wave RD and reflected millimeter wave RF) penetrate the waterproof sheet H, so the waterproof sheet H does not interfere with the determination of whether the object is the steel support T or the shotcrete CS. Note that the waterproof sheet H is not shown in Figure 1 (the same applies to Figures 4 and 5, described below).

[0030] <Distance information correction step> If the object information for each millimeter-wave radar distance measuring device 12 is a steel support, the distance information is corrected by adding the protruding height of the steel support T from the sprayed concrete surface, or by setting it to the average value of the distance information values ​​of nearby objects whose object information is sprayed concrete.

[0031] In the former method of correcting distance information by "adding the protruding height of the steel support T from the sprayed concrete surface," the "protruding height of the steel support T from the sprayed concrete surface" must be set in advance. For example, if the design support pattern is a CII pattern, the protruding height can be set to 75 mm, and if the design support pattern is a DI pattern, the protruding height can be set to 25 mm. In the latter method of "setting to the average value," the "nearby" can be, for example, four points above, below, left, and right (the object information is the sprayed concrete), or it can be two points above, below, etc.

[0032] In this embodiment, when the object information is a steel support, a method of correcting the distance information for that is adopted. However, as another example, when the object information is a steel support, a method of calculating the winding space capacity without using the distance information for this position may be adopted.

[0033] <Steps for calculating the planned concrete pour volume> Based on the distance information for each millimeter wave radar distance measuring device 12, the planned pouring amount of lining concrete CC is calculated.

[0034] The planned concrete pouring amount must be calculated as at least the total planned concrete pouring amount. The planned concrete pouring amount may also include time series data such as the pouring amount per unit time and its change, as well as the selection of the pouring window W and time series data for each pouring window W.

[0035] <Steps for acquiring measuring instrument information during pouring> After starting concrete pouring based on the planned pouring volume, radio wave intensity information is acquired from each millimeter wave radar distance measuring device 12. The method is the same as the measuring device information acquisition step described above, so a description thereof will be omitted.

[0036] <Pour height information setting step> If the radio wave intensity information from each millimeter wave radar distance measuring device 12 cannot be measured, the object information for each millimeter wave radar distance measuring device 12 is reset to lining concrete, and the pouring height information is set to the measuring device height information of the millimeter wave radar distance measuring device 12 whose object information is lining concrete. If there are multiple millimeter wave radar distance measuring devices 12 whose object information is lining concrete and the measuring device height information differs from one another, for example, the highest measuring device height information may be set as the pouring height information, the lowest measuring device height information may be set as the pouring height information, or the average value of the measuring device height information may be set as the pouring height information.

[0037] This takes advantage of the fact that, as shown in Figure 3(c), when the measurement target is the lining concrete CC, the radio wave intensity information becomes "unmeasurable." Figure 4 shows the situation during concrete pouring. When the upper end of the lining concrete CC is located above the millimeter-wave radar distance measuring devices 12a2 and 12b2, the pouring height information is the measuring device height information for the millimeter-wave radar distance measuring devices 12a2 and 12b2, or either one of them. In addition, taking into consideration that the pouring heights on the left and right are different or intentionally made different, pouring height information for each of the left and right pouring heights may be provided.

[0038] <Repeat step> If pouring is not complete, the process returns to the step of acquiring measuring instrument information during pouring. This repeat step is flow-controlled by the control device 13 based on information on whether pouring is complete or not. Here, the information on whether pouring is complete or not may be input from the outside, or the control device 13 may automatically determine that "pouring is complete" when the pouring height information reaches its maximum value or after a certain time has passed since then. The case where the pouring height information reaches its maximum value refers to, for example, when the pouring height information reaches the measuring instrument height of the millimeter-wave radar distance measuring device 12c in Figure 4 (the millimeter-wave radar distance measuring device at the top position).

[0039] [Effects of this Example] The winding space measurement method according to this embodiment has the following effects. The winding space measurement method of the present invention installs multiple millimeter-wave radar distance measuring devices facing outward in a direction approximately normal to the outer surface of the center tube, and uses a control device to measure and determine the winding space, enabling automatic measurement of the winding space simultaneously with center setup. Therefore, compared to manual work by workers, it reduces the labor and man-hours required for workers, reduces their workload, and enables highly accurate measurement of the entire tunnel winding space. Furthermore, as a result, it is possible to accurately calculate the planned concrete pour volume. Even compared to conventional technology, it minimizes unnecessary man-hours, such as measurements using a 3D scanner before installing the center tube.

[0040] The lining space measurement method of the present invention uses a millimeter-wave radar distance measuring device. Millimeter waves penetrate concrete to a certain extent, resulting in weaker radio wave strength of the reflected waves compared to the metal used in steel shoring. Millimeter waves also penetrate waterproof sheets. Therefore, compared to manual measurement by workers, even when the shotcrete and steel shoring are covered with a waterproof sheet, it is possible to accurately determine whether the concrete is shotcrete or steel shoring and correct the measurement distance, thereby enabling highly accurate measurement of the entire tunnel lining space. Furthermore, because millimeter waves penetrate dust, smoke, and fog, they can measure the distance to the target object without being affected by these elements.

[0041] By utilizing the characteristics of the millimeter-wave radar distance measuring device when the measurement target is lining concrete, the pouring height can be automatically measured using the center of this method during concrete pouring, making it possible to accurately and easily manage the pouring height of lining concrete.As a result, compared to manual work by workers and conventional technologies, it is possible to reduce the time and increase the accuracy of tasks such as adjusting the appropriate pouring amount and selecting pouring windows when pouring concrete.The same can be said for both automatic and manual adjustments and selections.

[0042] Furthermore, when measuring the winding space manually or with conventional techniques, even if the pouring height is to be automatically measured during concrete pouring, a separate system must be installed. With this method, there is no need to install a separate system for automatically measuring the pouring height, reducing the effort and cost required. [Example]

[0043] This method is a concrete pouring method for a lining space in the lining space concrete pouring system 2 using the lining space measurement method described in the first embodiment.

[0044] [System configuration] The configuration of the concrete pouring system 2 for the winding space configured to implement the present winding space concrete pouring method is shown below. FIG. 5 is a cross-sectional view, viewed from the front, of the winding space concrete pouring system 2 configured to implement the winding space concrete pouring method of this embodiment installed in a tunnel. The winding space concrete pouring system 2 further comprises a concrete pump 24, or a concrete pump 24 and multiple piping switching devices 25, in addition to the winding space measurement system 1. Although the control device 23 and gantry G are not shown in FIG. 5, their arrangement is the same as in FIG. 1. The control device 23 controls the concrete pump 24, or the concrete pump 24 and piping switching device 25, in addition to the control device 13 of the winding space measurement system 1.

[0045] FIG. 5 shows a system in which a piping switching device 25 is installed for each piping P, and the control device 23 controls the concrete pump 24 and the piping switching device 25. In other words, this system is one in which each piping P is installed in each pouring window W, and concrete pouring from each pouring window W is controlled by the control device 23 via the concrete pump 24 and the piping switching device 25. The pouring window W is selected automatically by selecting the piping switching device 25. However, the concrete pouring system 2 for a concrete enclosure space according to the present invention is not limited to the above, and may be a system in which only the concrete pump 24 is installed and controlled, but which does not include the installation and control of the piping switching device 25. For example, piping P may not be installed in all pouring windows W in advance, but may be installed manually in each pouring window W each time.

[0046] [Method of pouring concrete into the space surrounding the lining] <Summary> The concrete pouring method for the lining space of this embodiment is described below. Also, Figure 6 shows the flow of this concrete pouring method for the lining space. Here, the concrete pouring method for the lining space of this embodiment is a method of pouring concrete for the lining space in which the control device 23 measures the lining space S, performs judgment processing, and selects the pouring volume or the pouring volume and pouring window W. Therefore, as with Example 1, the process of installing the lining space concrete pouring system 2 in advance at a predetermined position in the tunnel, i.e., the center setting process, which is necessary during actual work, is not included in the following steps.

[0047] This concrete pouring method for a lining space further includes the following steps in the control device 23 between the pouring height information setting step and the repeating step.

[0048] <Steps for calculating concrete volume, etc.> Based on the pouring height information and the respective distance information for each millimeter wave radar distance measuring device 22, the concrete pouring amount of the concrete pump 24 is calculated, or the concrete pouring amount of the concrete pump 24 is calculated and each piping switching device 25 is selected.

[0049] <Automatic concrete pouring step> Based on the result of the concrete pouring amount calculation, or the result of the concrete pouring amount calculation and the selection result of each piping switching device 25, the concrete pump 24 is controlled, or the concrete pump 24 is controlled and each piping switching device 25 is controlled, and concrete pouring is carried out.

[0050] [Effects of this Example] The method of pouring concrete into the lining space according to this embodiment has the following effects in addition to the effects of the first embodiment.

[0051] The method for pouring concrete into a concrete encasing space of the present invention uses the automatic pouring height measurement function of Example 1 and is newly equipped with a controllable concrete pump, or a controllable concrete pump and a switching device, thereby enabling automation of concrete pouring. Therefore, tasks such as adjusting the appropriate pouring amount and selecting a pouring window during concrete pouring are automated, enabling further time reduction, labor savings, and higher accuracy compared to Example 1, and further shortening of pouring time.

[0052] The invention of the method described in this application can be considered a system invention in which the "steps" executed by the control device are read as "units" or "means" possessed by the control device. For example, the invention of a "winding space measurement method" can be considered a "winding space measurement system" in which the "information setting step" executed by the control device is read as an "information setting unit" possessed by the control device. [Explanation of symbols]

[0053] 1. Winding space measurement system 11 Center 12 Millimeter wave radar distance measuring device (12a1, 12a2, 12a3, 12b1, 12b2, 12b3, 12c) 13 Control equipment (including display monitors) 2. Concrete pouring system for reinforced concrete 21 Center 22 Millimeter wave radar distance measuring device 23 Control equipment (including display monitors) 24 Concrete Pump 25 Piping switching device S Winding space CS Shotcrete CC lining concrete H waterproof sheet T Steel shoring RD millimeter wave radiation RF millimeter wave reflected wave G Gantry TF Top Form SF side form BF Lower end form P piping W poured concrete window

Claims

1. A plurality of millimeter wave radar distance measuring devices are installed facing outward in a direction approximately normal to the outer surface of the center and capable of measuring the distance to the target object, which is sprayed concrete or steel support, by passing through the waterproof sheet; A winding space measurement system comprising: a control device to which distance information and radio wave intensity information are input from the millimeter wave radar distance measuring device.

2. A winding space measurement method using the winding space measurement system according to claim 1, The control device a measuring instrument height information setting step for setting in advance a first threshold value, which is a threshold value of the radio wave intensity information for identifying whether the object is a sprayed concrete or a steel support, and measuring instrument height information, which is height information of the millimeter wave radar distance measuring instrument; a measuring device information acquisition step of acquiring the distance information and the radio wave intensity information from the millimeter wave radar type distance measuring device; an object information setting step of setting object information for the millimeter wave radar type distance measuring device to steel support if the radio wave intensity information from the millimeter wave radar type distance measuring device is greater than the first threshold value, and to sprayed concrete if the radio wave intensity information is less than the first threshold value; a distance information correction step in which, when the object information for the millimeter-wave radar distance measuring instrument is a steel support, the distance information is corrected by adding the protruding height of the steel support from the surface of the sprayed concrete, or by setting the distance information to an average value of the distance information in the vicinity of the millimeter-wave radar distance measuring instrument in which the object information is a steel support and the object information is sprayed concrete; A method for measuring a lining space, comprising: a planned pouring amount calculation step for calculating a planned pouring amount of lining concrete based on the distance information for the millimeter wave radar distance measuring device.

3. The winding space measurement method according to claim 2, The control device After starting concrete pouring, the millimeter wave radar distance measuring device acquires the radio wave intensity information from the millimeter wave radar distance measuring device. a pouring height information setting step in which, if the radio wave intensity information from the millimeter wave radar type distance measuring device cannot be measured, the object information for the millimeter wave radar type distance measuring device is reset to lining concrete, and pouring height information is set to the measuring device height information of the millimeter wave radar type distance measuring device whose object information is lining concrete; If the pouring is not completed, the process returns to the pouring measuring instrument information acquisition step, and The winding space measurement method further includes the steps of:

4. A concrete pouring system for a winding space using the winding space measurement method according to claim 3, Further provided with a concrete pump, or a concrete pump and a plurality of piping switching devices, The control device is a concrete pouring system for a winding space that controls the concrete pump, or the concrete pump and the piping switching device.

5. A method for pouring concrete into a winding space using the winding space concrete pouring system according to claim 4, The control device Between the pouring height information setting step and the repeating step, a pouring amount calculation step is performed, in which the pouring height information and the distance information for the millimeter wave radar distance measuring device are used to calculate the concrete pouring amount of the concrete pump, or the concrete pump is used to calculate the concrete pouring amount and the piping switching device is selected; An automatic pouring step of controlling the concrete pump, or controlling the concrete pump and the piping switching device, based on the result of the concrete pouring amount calculation, or the result of the concrete pouring amount calculation and the selection result of the piping switching device, and pouring concrete; A method for pouring concrete into a wrapping space, including:

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