Tunnel progress output system

Abstract

To solve the problems associated with the conventional technology, that is, to provide a tunnel progress output system that can grasp the tunnel progress by determining individual processes (work types) more easily and with higher accuracy than the conventional technology.SOLUTION: A tunnel progress output system of the present invention is a system that selects one individual process from among multiple different individual processes performed in tunnel excavation based on a power supply operation of electric equipment provided on a construction machine, and outputs the progress status of the tunnel excavation based on an excavation cycle consisting of a series of multiple types of individual processes, and comprises trigger signal receiving means, selection means, and cycle number counting means. The cycle number counting means counts the number of cycles when a series of individual processes constituting an excavation cycle is selected.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a technique for grasping the progress of tunnel excavation. More specifically, it relates to a tunnel progress output system that can determine the type of work in progress based on the power operation of electric equipment provided in construction machinery, and thereby grasp the progress of the tunnel.

Background Art

[0002] It is said that approximately two-thirds of the land in our country is mountainous. Therefore, roads, railway lines, etc. (hereinafter referred to as "roads, etc.") necessarily have sections passing through mountainous areas. In order to construct roads, etc. in these mountainous areas, it is common to adopt either an earthwork method of excavating a part of the slope or a tunnel method of digging out the inside of the natural ground. The tunnel method generally has a tendency for the construction cost per unit length (construction cost per unit length of roads, etc.) to be higher than that of the earthwork method. On the other hand, it also has a tendency for the amount of excavated soil (i.e., the amount of waste soil) to be less than that of the earthwork method, and has the feature that the degree of freedom in the linear plan of roads, etc. is high (for example, it can take shortcuts). It is said that more than 10,000 tunnels have been constructed in the country so far.

[0003] As a construction method for mountain tunnels, until the 1970s, the "lagging method" that combined steel arch support with wooden lagging to support the natural ground was the mainstream. Currently, however, NATM (New Austrian Tunnelling Method) that actively utilizes the strength of the natural ground has become the mainstream. The main feature of NATM is the design concept that expects the strength (arch effect) possessed by the natural ground. Therefore, compared with the conventional lagging method, the scale of tunnel support work can be reduced, and moreover, the construction speed can be improved, so the construction cost can be reduced.

[0004] Furthermore, since the full-scale implementation of NATM in Japan, excavation technology has advanced dramatically. Various auxiliary methods have been developed, making it possible to handle a variety of ground conditions. In addition, advances in excavation machinery (especially free-section excavators) have made it possible to choose mechanical excavation in addition to blasting excavation. Mechanical excavation generally has a relatively low strength (for example, a uniaxial compressive strength of 49 N / mm²), although this depends on the excavation cross-sectional area and alignment. 2 This method is often used for the following types of ground, while blasting is more commonly used when bedrock is present in the target ground.

[0005] Here is a brief explanation of the NATM excavation procedure. First, the tunnel face is excavated. In the case of blasting excavation, a drill jumbo is used to drill a hole and load explosives (dynamite), and after the workers and drill jumbo are evacuated, the blasting is carried out. In the case of mechanical excavation, the tunnel face is cut using a free-section excavator. The excavation length per cycle (1 span length) varies depending on the support pattern set according to the strength of the ground, but generally, excavation is carried out with a span length of 1.0 to 2.0 m. After excavating one span length, the spoil is removed by dump trucks (or rail method) while "scraping" is performed to remove unstable ground (loose rocks, etc.). After the spoil is removed, a head spraying or primary concrete spraying is performed, and if necessary (depending on the support pattern), steel supports are erected, secondary concrete spraying is performed, and then rock bolts are driven in. Furthermore, the primary and secondary concrete shotcrete work, as well as the rock bolt work, are carried out on the inner circumferential surface of the tunnel (the circumferential surface from the side walls to the top) for the length of the excavated span, that is, the unexcavated portion.

[0006] NATM is a tunneling method that excavates one span (1.0 to 2.0 m) at a time by repeatedly performing a series of processes (hereinafter referred to as "individual processes" for convenience) such as rock drilling (e.g., face drilling and blasting), spoil removal, steel support installation, concrete spraying, and rock bolt installation. This sequence of individual processes is called the "excavation cycle," and the timetable representing one excavation cycle is called the "cycle time." Each individual process that makes up the excavation cycle is a critical path. Therefore, understanding the working time for these individual processes and analyzing the cycle time is extremely important for improving the efficiency of tunnel excavation. In other words, by analyzing the cycle time, it is possible to identify inefficiencies and waste in tunnel excavation, and as a result, appropriate cost management and process management based on actual results can be implemented. For this reason, cycle time surveys are conducted at many tunnel excavation sites.

[0007] Traditionally, when investigating cycle times—that is, measuring the construction time for each individual process (rock drilling, excavation, steel support installation, concrete spraying, rock bolt installation)—investigators near the tunnel face would visually observe the process, measure the time with a stopwatch, and record it in a field notebook. While it was common practice to assign this task to construction managers or excavation workers (so-called miners), they were required to perform this task while also handling other duties and tasks. Furthermore, data could be missed or incorrectly acquired, requiring checking and correction, which placed a considerable burden on them.

[0008] Therefore, it is conceivable to automatically acquire cycle time without stationing investigators at the tunnel face. For example, by attaching IC tags (such as RFID) to heavy machinery and acquiring log information from those IC tags, cycle time can be automatically acquired. However, this method using IC tags requires the installation of new equipment on the heavy machinery actually in operation, and even if it can be implemented at a model site, it would not be easy to apply to all tunnel excavation sites due to the costs of installation and maintenance.

[0009] Another method for automatically acquiring cycle time is to use images. In other words, by automatically recognizing video or images taken of the tunnel face, the work status at the tunnel face (different processes) can be understood, and the time taken for that work can be determined based on the time the image was taken. While machine learning such as deep learning can be used to automatically recognize images of the tunnel face, the current level of technology has the problem that it cannot correctly recognize if there is variation in the position and size of construction machinery etc. in the image, and as a result, it is not possible to accurately acquire the cycle time.

[0010] In addition, it is conceivable to automatically acquire cycle time based on the operating status of construction machinery used in each individual process. For example, Patent Document 1 does not acquire cycle time for tunnel excavation, but proposes a technology for understanding the operating history of construction machinery (e.g., a tire roller) based on engine speed. [Prior art documents] [Patent Documents]

[0011] [Patent Document 1] Japanese Patent Publication No. 2021-56938 [Overview of the project] [Problems that the invention aims to solve]

[0012] The technology disclosed in Patent Document 1 considers a tire roller to be operating when the engine speed exceeds a threshold, and defines the continuous time above this threshold as the operating time of the tire roller. In other words, the accuracy of the operating time to be estimated largely depends on the threshold set in advance, and in other words, if the threshold is not set appropriately, the correct operating time cannot be obtained. Furthermore, when the technology of Patent Document 1 is applied to obtaining cycle time in tunnel excavation, different construction machines are used for each individual process, so it is necessary to set an appropriate threshold for each construction machine. However, it is difficult to set appropriate thresholds for multiple types of construction machines, and even if the thresholds are set after conducting tests in advance, it is unlikely that the effort and cost involved would justify the benefits. Moreover, in tunnel excavation, it is not uncommon for construction machines to repeatedly start and stop even during work, so the technology of Patent Document 1 may have the disadvantage of dividing one individual process (i.e., treating it as two or more individual processes) and determining the operating time accordingly.

[0013] By the way, since tunnel excavation progresses daily, the degree of progress of tunnel excavation (hereinafter simply referred to as "tunnel progress") is constantly being monitored. For example, the construction manager goes to the tunnel face every morning, measures the excavation length using the numbers marked on the steel supports, and then returns to the management building or construction site office outside the tunnel to record the data, thereby sharing the tunnel progress within the construction site. Tunnel progress can be expressed as the cumulative number of excavation cycles since the start of excavation, or as the tunnel excavation distance from the tunnel entrance to the tunnel face (so-called Tunnel Distance: TD).

[0014] Thus, tunnel progress measurement, like cycle time surveys, is carried out by people such as construction managers, which increases the workload and can lead to missed or inaccurate measurements. Therefore, there was a need for technology that could automatically measure tunnel progress without relying on construction managers or other personnel.

[0015] Furthermore, while ventilation equipment consumes the most electricity during tunnel excavation, it was rare to operate the ventilation equipment while appropriately adjusting its output to reduce power consumption. For example, ventilation equipment is designed to account for the resistance of the air ducts to the maximum length of tunnel excavation, and it was common practice to operate it at maximum output even when the length of the air ducts laid (hereinafter simply referred to as "air duct length") was still short. In recent years, with the growing desire to achieve the SDGs, there is a need to reduce CO2 emissions, and it is urgent to reduce CO2 emissions by reducing power consumption. Therefore, there was a need for a technology that could reduce CO2 emissions by estimating the air duct length by measuring tunnel progress and operating the ventilation equipment while automatically adjusting the output as appropriate, taking into account the pressure loss along that air duct length.

[0016] The objective of the present invention is to solve the problems of the prior art, namely, to provide a tunnel progress output system that can grasp tunnel progress by determining individual processes (types of work) more easily and with higher accuracy than the prior art. [Means for solving the problem]

[0017] The present invention focuses on determining the type of work for each process based on the power operation of electric devices installed in construction machinery, and is an invention based on a completely new idea.

[0018] The tunnel progress output system of the present invention is a system that selects one individual process from among a plurality of different individual processes performed in tunnel excavation based on the power operation of an electric device installed on a construction machine, and outputs the progress status of tunnel excavation based on an "excavation cycle" consisting of a series of multiple types of individual processes, and is equipped with a trigger signal receiving means, a selection means, and a cycle count counting means. The trigger signal receiving means is a means for receiving a "trigger signal" related to the power operation of an electric device mounted on a construction machine used in an individual process, and the selection means is a means for selecting an individual process based on the trigger signal received by the trigger signal receiving means. The cycle count counting means counts one cycle count when a series of individual processes constituting the excavation cycle is selected, and also counts the "cumulative cycle count", which is the cumulative number of cycle counts. The trigger signal receiving means receives a "start trigger signal" when the power of a predetermined "specific electric device" among the electric devices installed on the construction machine is turned ON, and receives (detects) a "stop trigger signal" when the power ON of the specific electric device is turned OFF. The selection means selects an individual process based on the construction machine to which the trigger signal receiving means received the trigger signal. This allows us to determine that the individual process selected by the selection method is the individual process currently being carried out at the tunnel face. Then, the cumulative number of cycles is output as the progress of tunnel excavation.

[0019] The tunnel progress output system of the present invention may further include a support pattern estimation means and a pattern-specific excavation length setting means. The support pattern estimation means is a means for estimating the type of excavation cycle, which is the "support pattern," when a series of individual processes constituting the excavation cycle are selected. The pattern-specific excavation length setting means is a means for setting the "pattern-specific excavation length" according to the support pattern estimated by the support pattern estimation means. The support pattern estimation means estimates the support pattern based on the sequence of support patterns planned in advance and the cumulative number of cycles. In this case, the system outputs the "tunnel excavation distance" as tunnel progress based on the pattern-specific excavation length set by the pattern-specific excavation length setting means.

[0020] The tunnel progress output system of the present invention may further include a cycle time calculation means, a support pattern estimation means, and a pattern-specific excavation length setting means. The cycle time calculation means calculates the "excavation cycle time" for an excavation cycle based on the working time for each individual process that constitutes the excavation cycle, once a series of individual processes constituting the excavation cycle have been selected. In this case, the cycle count counting means counts 1 cycle count when a series of individual processes constituting the excavation cycle have been selected, and the selection means selects individual processes based on the construction machinery related to the trigger signal receiving means that has received a trigger signal, and calculates the working time for each individual process based on the time of reception of the start trigger signal and the time of reception of the stop trigger signal. The support pattern estimation means estimates the support pattern by comparing the excavation cycle time with a "standard excavation cycle time" for each pre-set support pattern. In this case, the "tunnel excavation distance" as tunnel progress is output based on the pattern-specific excavation length set by the pattern-specific excavation length setting means.

[0021] The tunnel progress output system of the present invention may further include a process chart output means. This process chart output means is a means of outputting a "shaded process chart" on a graph composed of a first axis (showing the degree of progress of tunnel excavation) and a second axis (an axis showing time), which shows the cumulative number of cycles and the tunnel excavation distance (degree of progress of tunnel excavation) according to time.

[0022] The tunnel progress output system of the present invention may further include a duct length calculation means and an equipment control means. The duct length calculation means is a means for determining the duct length, which is the length of the ventilation duct installed, based on the tunnel excavation distance. The equipment control means is a means for controlling a blower that supplies air to the ventilation duct. The equipment control means calculates the pressure loss associated with air supply based on the duct length and adjusts the output of the blower according to the pressure loss.

[0023] The tunnel progress output system of the present invention can further include an operating time measuring means and a CO2 emission amount calculating means. This operating time measuring means is a means for measuring the operating time of a blower that operates while being controlled by equipment control means. The CO2 emission amount calculating means is a means for calculating the CO2 emission amount associated with the operation of the blower by multiplying the operating time for each output of the blower by the CO2 emission amount per unit time set in advance for each output.

Effect of the Invention

[0024] The tunnel progress output system of the present invention has the following effects. (1) Without constantly arranging investigators of cycle time at the tunnel face, and even with a two-shift system of day and night, the cycle time can be obtained at any time, and the tunnel progress can be automatically output. As a result, the burden on construction managers and the like is reduced, and the tunnel progress can always be grasped accurately and up-to-date. (2) When adjusting the output of the blower in consideration of the pressure loss calculated based on the duct length, the power consumption related to the blower can be suppressed, that is, the CO2 emission amount is reduced, and the awareness of the people involved in the construction towards the environment can be enhanced. (3) When estimating the support pattern and selecting the excavation length for each pattern according to the support pattern, the tunnel excavation distance can be output as the tunnel progress. (4) When adjusting the output of the ventilation equipment in consideration of the pressure loss calculated based on the duct length, the power consumption related to the ventilation equipment can be suppressed, that is, the CO2 emission amount is reduced, and the awareness of the people involved in the construction towards the environment can be enhanced. (5) Conventionally, when grasping the type of face work, confirmation was made by telephone or the like, or judgment was made based on images or videos taken in the mine. According to the present invention, it becomes possible to grasp the situation in real time at the display position outside the mine. As a result, work that is easily affected by the face work can be smoothly carried out in the mine. For example, when the air duct becomes an obstacle during the movement of the center (cast formwork), it is necessary to stop the ventilation equipment. However, since the face situation can be grasped in real time, the work can proceed without unnecessary waiting time.

Brief Description of the Drawings

[0025] [Figure 1] A model diagram schematically showing the relationship between individual processes, used machines, and specific electric equipment. [Figure 2] A model diagram showing examples of individual processes performed in tunnel excavation, used machines used in each individual process, and specific electric equipment set in the used machines. [Figure 3] A block diagram showing the main configuration of the tunnel progress output system of the present invention. [Figure 4] A model diagram schematically showing the relationship between usage time, correction time, and work time. [Figure 5] A model diagram showing the relationship of "five types of support patterns, work times related to five types of individual processes, and standard excavation cycle time" set in advance. [Figure 6] A model diagram showing the "excavation progress length for each support pattern" set in advance. [Figure 7] A model diagram showing the "diagonal line process table". [Figure 8] A flowchart showing the main processing flow until the tunnel progress output system of the present invention calculates the work time. [Figure 9] A flowchart showing the main processing flow until the tunnel progress output system of the present invention calculates the CO2 emission amount. [Figure 10](a) is a schematic model diagram showing the "operating state" and "resting state" of a specific electric equipment, and (b) is a schematic model diagram showing how individual processes are selected according to the combination of operating state and resting state. [Figure 11] A schematic model diagram illustrating how individual processes are selected according to combinations of trigger signals from different machines used. [Figure 12] A flowchart showing the main steps in the tunnel progress output method. [Modes for carrying out the invention]

[0026] An example of the implementation of the tunnel progress output system of the present invention will be explained with reference to the figures.

[0027] 1.Overview The present invention focuses on the fact that different types of construction machinery are used for each "individual process," such as face excavation, spoil removal, steel support erection, concrete spraying, and rock bolt installation, and also focuses on the power operation of the electric devices installed on these construction machines. Note that construction machinery may be equipped with multiple types of electric devices, and the electric devices of interest are predetermined. For convenience, the electric devices of interest will be specifically referred to as "specific electric devices," and the construction machinery used for each individual process will be referred to as "machinery used."

[0028] Figure 1 is a schematic model diagram illustrating the relationship between individual processes, the machinery used, and specific electric equipment. This diagram shows three individual processes (individual processes 01 to 03). For example, in individual process 01, machinery A is used, and specific electric equipment A is set among the electric equipment installed on machinery A. Machine A is equipped with a trigger signal receiving means A that receives a signal (hereinafter referred to as the "trigger signal") when the power of specific electric equipment A is turned ON. More specifically, the trigger signal receiving means A connected to specific electric equipment A receives a trigger signal (hereinafter especially referred to as the "start trigger signal") when the power of specific electric equipment A is turned ON, and also detects the timing when the power ON of specific electric equipment A is turned off, that is, the situation when the power switches from ON to OFF. The information that the trigger signal receiving means detects at the timing when the power ON of specific electric equipment is turned off (power turned OFF) will be specifically called the "stop trigger signal," and for convenience, the detection of this stop trigger signal by the trigger signal receiving means will be referred to as "receiving" the stop trigger signal.

[0029] In individual process 01, one specific electric device A is set for machine A, but this is not limited to this; two or more types of specific electric devices can also be set for one machine. For example, in individual process 02, machine B is used, and specific electric devices B1 and B2 are set from among the electric devices installed on machine B. Machine B is equipped with a trigger signal receiving means B1 that receives the trigger signal of specific electric device B1, and a trigger signal receiving means B2 that receives the trigger signal of specific electric device B2.

[0030] Furthermore, in individual process 01 and individual process 02, one machine (machine A or machine B) is used for one individual process, but depending on the type of work in an individual process, two or more types of machines may be used. In this case, it is advisable to set specific electric devices for each machine. For example, in individual process 03, machines C and D are used, with specific electric device C set for machine C, and specific electric device D set for machine D. Machine C is equipped with a trigger signal receiving means C to receive the trigger signal of specific electric device C, and machine D is equipped with a trigger signal receiving means D to receive the trigger signal of specific electric device D.

[0031] Thus, one trigger signal receiving means is connected to one specific electric device. Therefore, if the trigger signal receiving means can be identified, the specific electric device can be identified, that is, the machine in which that specific electric device is installed can be identified, and as a result, the individual processes related to that machine can be determined. In identifying the trigger signal receiving means, a distinguishable identifier (ID) can be assigned to the trigger signal receiving means in advance, and the system can be configured to handle trigger signals that combine this identifier. The trigger signal receiving means is connected to the electrical cord related to the power operation of the specific electric device, so as to be able to receive ON / OFF (on / off) trigger signals from the relay on the specific electric device side. In this case, since the trigger signal is an analog signal, the trigger signal receiving means will convert it to a digital signal (A / D conversion), and it is advisable to assign the identifier of the trigger signal receiving means to the digital signal at this time.

[0032] As described above, the trigger signal receiving means receives a start trigger signal and a stop trigger signal as trigger signals. Therefore, by using the start trigger signal and the stop trigger signal, it is possible to estimate the time that a specific electric device was in operation, that is, the time that the machine in which the specific electric device was installed was in operation, and as a result, the time that an individual process related to that machine was carried out (hereinafter referred to as "work time") can be estimated. In other words, by using the trigger signals received by the trigger signal receiving means, it is possible to determine the individual process that is being carried out (or has been carried out) at the tunnel face, and to estimate the work time of that individual process.

[0033] Figure 2 is a model diagram showing an example of individual processes performed in tunnel excavation, the machinery used in each process, and specific electric equipment set for the machinery. In this example, the "excavation cycle" is shown, consisting of a combination of "face excavation," "spoil removal," "primary concrete spraying," "steel support erection," "secondary concrete spraying," and "rock bolt installation," and is carried out in the order shown in the diagram. In face excavation, if mechanical excavation is performed, a "twin header (free-section excavator)" is used as the machinery, and its "headlights" are set as specific electric equipment. In blasting excavation, a "drill jumbo" is used as the machinery, and its "hydraulic pump" is set as specific electric equipment. In spoil removal, a "side dump" for loading spoil is used as the machinery, and its "headlights" are set as specific electric equipment. In other words, the face excavation and spoil removal shown in this diagram are set up with the machinery and specific electric equipment according to the pattern of "Individual Process 01" shown in Figure 1.

[0034] Furthermore, in primary concrete spraying, steel support erection, and secondary concrete spraying, a "concrete spraying machine (with erector)" is used as the machine, and its "compressor" and "hydraulic pump" are designated as specific electric equipment. The compressor of the concrete spraying machine is used when spraying concrete, while the hydraulic pump is used both when spraying concrete (moving the boom) and when erecting the steel support (moving the erector). In other words, the primary concrete spraying, steel support erection, and secondary concrete spraying shown in this figure have the machines and specific electric equipment set according to the "Individual Process 02" pattern shown in Figure 1. Of course, this is not the only example; in primary and secondary concrete spraying, only the "compressor" can be designated as specific electric equipment, and in steel support erection, only the "hydraulic pump" can be designated as specific electric equipment.

[0035] Furthermore, in rock bolt installation, a "drill jumbo" and a "mortar injection pump" are used as machinery. The "hydraulic pump" of the drill jumbo is designated as a specific electric device, and the "electric motor" of the mortar injection pump is designated as a specific electric device. The drill jumbo is used for drilling holes for the rock bolts and inserting them, while the mortar injection pump is used for injecting mortar into the rock bolt holes. In other words, the rock bolt installation shown in this figure follows the pattern of "Individual Process 03" shown in Figure 1, with the machinery and specific electric devices configured accordingly. Of course, this is not the only example; in rock bolt installation, it is also possible to use only a "drill jumbo" as the machinery and designate its "hydraulic pump" as the specific electric device.

[0036] 2. Tunnel progress output system Next, the tunnel progress output system of the present invention will be described in detail.

[0037] Figure 3 is a block diagram showing the main configuration of the tunnel progress output system 100 of the present invention. As shown in this figure, the tunnel progress output system 100 of the present invention is configured to include a trigger signal receiving means 101, a selection means 102, and a cycle counting means 103. It can also be configured to include a support pattern estimation means 104, a pattern-specific excavation length setting means 105, a cycle time calculation means 106, a process schedule output means 107, a wind pipe length calculation means 108, an equipment control means 109, an operating time measurement means 110, a CO2 emission calculation means 111, an output means 112, a communication device 113, a process display control means 114, a process display means 115, a correction time storage means 116, a support pattern storage means 117, a standard cycle time storage means 118, an excavation length storage means 119, and the like.

[0038] Of the main elements constituting the tunnel progress output system 100, the selection means 102, cycle counting means 103, support pattern estimation means 104, pattern-specific excavation length setting means 105, cycle time calculation means 106, process schedule output means 107, wind pipe length calculation means 108, equipment control means 109, operating time measurement means 110, CO2 emission calculation means 111, and process display control means 114 can be manufactured as dedicated components or a general-purpose computer device can be used. In other words, each means performs its own specific processing by having the computer device execute calculations according to a predetermined program. This computer device is equipped with a processor such as a CPU, memory such as ROM or RAM, and may also include input means such as a mouse or keyboard and a display, and can be configured as, for example, a personal computer (PC) or a server. If the computer device includes a display, this display can also be used as the output means 112.

[0039] Furthermore, the correction time storage means 116, support pattern storage means 117, standard cycle time storage means 118, and excavation length storage means 119, which store the "correction time" described later, can either utilize the storage device of a general-purpose computer or be built on a database server. When built on a database server, it can be placed on a local network (LAN: Local Area Network) or it can be a cloud server that stores data via the internet (i.e., wireless communication).

[0040] The following describes in detail each of the main components that make up the tunnel progress output system 100.

[0041] (Trigger signal receiving means) As previously described, the trigger signal receiving means 101 is mounted on the machine in use and connected to a specific electric device, and receives the trigger signals (start trigger signal and stop trigger signal) of that specific electric device. More specifically, by connecting the trigger signal receiving means to the electrical cord related to the power operation of the specific electric device, it detects the presence or absence of current due to the opening and closing of a relay on the specific electric device side, and thereby receives the ON / OFF (on / off) trigger signal of the power on the specific electric device side. The trigger signal receiving means 101 also converts the received analog trigger signal into a digital signal (A / D conversion), assigns an identifier of the trigger signal receiving means 101 to the digital signal, and can also temporarily (or non-volatilely) store the trigger signal and identifier.

[0042] (Communication equipment) The communication device 113 is installed inside the tunnel and transmits the trigger signal received by the trigger signal receiving means 101 to the selection means 102. It is a so-called access point that uses Wi-Fi (registered trademark), etc. Therefore, the communication device 113 and the selection means 102 are connected wirelessly (or wired), and the communication device 113 and the trigger signal receiving means 101 are also connected wirelessly (or wired). Consequently, when the communication device 113 is installed, the selection means 102 can receive the trigger signal in real time, and subsequent processing (for example, selection of individual processes) can also be executed in real time. It is also possible to omit the communication device 113 and store the trigger signal and identifier in the trigger signal receiving means 101, but in that case, it is difficult to execute processing such as the selection of individual processes in real time, and the determination will have to be made retrospectively. In other words, if the communication device 113 is installed, it is possible to grasp the individual processes currently being carried out at the tunnel face, but if the communication device 113 is omitted, the cost can be reduced, but only the individual processes after they have been carried out can be grasped.

[0043] (Selection method) The selection means 102 is a means for receiving trigger signals and selecting individual processes using the received trigger signals. Furthermore, it can also calculate the working time of the individual process based on the received start trigger signal and stop trigger signal. More specifically, the selection means 102 identifies a specific electric device using an identifier included in the trigger signal, identifies the machine on which that specific electric device is installed, and then selects the individual process related to that machine from among the multiple individual processes that constitute the excavation cycle. At this time, since the execution order of the individual processes that constitute the excavation cycle is determined, it is also possible to specify that the individual process is selected based on the immediately preceding individual process. The selection means 102 also calculates the working time of the individual process by taking the time when the start trigger signal is received as the starting point and the time when the stop trigger signal is received as the ending point, and using a portion (or all) of the period from the starting point to the ending point as the starting point. The selection means 102 can be installed inside the tunnel, but it is preferable to install it in a relatively well-equipped location such as a management building or construction site office outside the tunnel.

[0044] (Process display control means) The process display control means 114 displays the individual processes selected by the selection means 102 on the process display means 115. This process display means 115 is installed around the tunnel entrance and is, for example, an electronic display board that shows the individual processes currently being carried out at the tunnel face. Alternatively, it can be configured to display the individual processes of the preceding and succeeding processes along with the individual process being carried out. By displaying the individual process being carried out, it is possible to guide visitors and other non-personnel, thereby improving safety, such as preventing entry into the tunnel in the case of dangerous work. Furthermore, for workers waiting outside the tunnel, it is possible to make appropriate preparations for the subsequent processes and carry out the work of the next process efficiently. The process display control means 114 should be installed in the same location as the selection means 102 (for example, in the administration building or construction site office).

[0045] (Correction time storage means) As previously described, the selection means 102 takes the time when the start trigger signal is received as the starting point and the time when the stop trigger signal is received as the ending point, and calculates a portion (or all) of the period from the starting point to the ending point as the work time for that individual process. However, depending on the individual process, there may be time periods that are not suitable as work time for that individual process, such as the time it takes for the machinery to move or the time it takes to prepare various things. Therefore, it is preferable to set a "correction time (which can be set as positive or negative)" for each individual process in advance and store this correction time in the correction time storage means 116. In this case, the selection means 102 calculates the work time taking the correction time into consideration. More specifically, the selection means 102 queries the correction time storage means 116 for the individual process it has selected and reads out the correction time for that individual process from the correction time storage means 116. Then, as shown in Figure 4, the "operating time" of the machine is defined as the time from the start trigger signal reception time (start point) to the stop trigger signal reception time (end point), and the "working time" is calculated by subtracting the correction time from this operating time. Of course, different correction times can be set for each individual process, and it is also possible to not set a correction time for certain individual processes.

[0046] (Method for counting cycle counts) The cycle count counting means 103 is a means for counting "cycle counts" of 1 when a series of individual processes constituting the excavation cycle are selected, and can also count "cumulative cycle counts," which are the cumulative number of cycle counts since the start of excavation. As previously described, the excavation cycle consists of a series of multiple types of individual processes, and of course, the order in which they are carried out is predetermined. For example, the excavation cycle shown in Figure 2 consists of the individual processes of "face excavation," "spoil removal," "primary concrete spraying," "steel support erection," "secondary concrete spraying," and "rock bolt installation," and is carried out in that order. Therefore, when a series of individual processes are selected by the selection means 102, the cycle count counting means 103 counts "cycle counts" of 1 and also counts the cumulative cycle counts. For example, in the case of Figure 2, when "face excavation" to "rock bolt installation" are selected by the selection means 102, the cycle count counting means 103 counts the cycle count and the cumulative cycle count. The cycle counting means 103 can be configured to automatically count the number of cycles as described above, or it can be configured to count the number of cycles through operator operation.

[0047] (Cycle time calculation means) The cycle time calculation means 106 is a means for calculating the "excavation cycle time" when a series of individual processes constituting the excavation cycle are selected (that is, when the cycle count counting means 103 counts one cycle). Here, the excavation cycle time is the construction time required for one excavation cycle, which is the sum of the working times for the individual processes constituting the excavation cycle. The cycle time calculation means 106 calculates the excavation cycle time based on the working times for the individual processes calculated by the selection means 102.

[0048] (Support pattern estimation means) The support pattern estimation means 104 is a means for estimating the "support pattern (so to speak, the type of excavation cycle)" of an excavation cycle once a series of individual processes constituting the excavation cycle have been selected (that is, once the cycle count count means 103 has counted 1 cycle). When tunnel excavation is carried out, geological surveys and detailed designs are performed in advance, and a tunnel plan longitudinal section drawing showing the length for each support pattern is created. In other words, the support patterns for each excavation cycle, arranged in order from the tunnel entrance, are set in advance, and if the cumulative number of cycles is known, the planned support pattern corresponding to that excavation cycle (the last added excavation cycle) can be grasped. More specifically, a table (hereinafter referred to as the "support pattern table") which lists the combinations of "excavation cycles and support patterns" in order from the tunnel entrance is stored in the support pattern storage means 117 (Figure 3), and the support pattern corresponding to that cumulative number of cycles is read out by querying the support pattern storage means 117 with the cumulative number of cycles counted by the cycle count count count means 103. Of course, if design changes are made during tunnel excavation, the support pattern table should be modified by the operator each time.

[0049] The support pattern estimation means 104 can also be configured to estimate the support pattern based on the "excavation cycle time" instead of (or in addition to) the specification that estimates the support pattern based on the cumulative number of cycles. A standard excavation cycle time (hereinafter simply referred to as "standard excavation cycle time") can be set for each support pattern based on the construction results of other tunnels of the same scale that have been carried out in the past, or the results up to a certain point in the tunnel in question. For example, in Figure 5, the working time for five types of support patterns (D2 pattern and D1 pattern, C2 pattern, C1 pattern, and B pattern), five types of individual processes (face excavation and spoil removal, primary concrete spraying, steel support installation, secondary concrete spraying, and rock bolt installation), and their relationship with the standard excavation cycle time are predetermined.

[0050] In this case, if the excavation cycle time can be obtained, the support pattern can be estimated from a standard excavation cycle time that approximates (or matches) that excavation cycle time. More specifically, a table consisting of combinations of "support pattern and standard excavation cycle time" (hereinafter referred to as the "standard time table") is stored in the standard cycle time storage means 118 (Figure 3), and the excavation cycle time calculated by the cycle time calculation means 106 is queryed against the standard cycle time storage means 118 to extract a standard excavation cycle time that approximates (or matches) that excavation cycle time, and the support pattern corresponding to that standard excavation cycle time is read out. Of course, if the standard time table is revised during tunnel excavation, it is advisable to correct the standard time table by operator operation each time.

[0051] (Method for setting excavation length by pattern) The pattern-specific excavation length setting means 105 is a means for setting the "pattern-specific excavation length" according to the support pattern estimated by the support pattern estimation means 104. Here, the pattern-specific excavation length is the excavation progress length (1 span length) for one excavation cycle, and is the excavation progress length for each support pattern. This pattern-specific excavation length is generally set to 1.0 to 2.0 m, as shown in Figure 6. In other words, once the support pattern is estimated by the support pattern estimation means 104, the pattern-specific excavation length corresponding to that excavation cycle can be determined. More specifically, a table consisting of "excavation progress length for each support pattern (i.e., pattern-specific excavation length)" as shown in Figure 6 (hereinafter referred to as the "standard excavation length table") is stored in the excavation length storage means 119 (Figure 3), and the pattern-specific excavation length corresponding to that support pattern is read out by querying the excavation length storage means 119 with the support pattern estimated by the support pattern estimation means 104. The pattern-specific excavation length setting means 105 then calculates the "tunnel excavation distance," which is the cumulative pattern-specific excavation length (i.e., the distance from the tunnel entrance to the current face) since the start of excavation.

[0052] (Process table output means) The process chart output means 107 is a means for outputting a "shaded process chart" to an output means 112 (Figure 3), such as a display. Here, a shaded process chart is a graph composed of two orthogonal axes that shows the tunnel excavation distance according to time. For example, in Figure 7, the horizontal axis shows the tunnel excavation distance and the vertical axis shows the elapsed time since the start of excavation, and a shaded process chart is generated by plotting the tunnel excavation distance according to the elapsed time. In addition to the tunnel excavation distance, the shaded process chart in Figure 7 also displays the invert construction distance, waterproofing construction distance, and lining concrete construction distance. Considering that both the tunnel excavation distance and the cumulative cycle count are values ​​that indicate the progress of tunnel excavation, it is also possible to generate a shaded process chart using the cumulative cycle count instead of the tunnel excavation distance.

[0053] (Wind pipe length calculation means) The air duct length calculation means 108 is a means for determining the "air duct length" based on the tunnel excavation distance calculated by the pattern-specific excavation length setting means 105. Here, the air duct length is the current length of the ventilation air duct that is installed. Therefore, as the tunnel face progresses, the air duct length also changes sequentially. When the air duct length calculation means 108 determines the air duct length, the tunnel excavation distance calculated by the pattern-specific excavation length setting means 105 is used as the basis, and the tunnel excavation distance can be used as the air duct length directly, or the air duct length can be determined by subtracting a predetermined length (for example, 10m) from the tunnel excavation distance.

[0054] (Equipment control means) The equipment control means 109 adjusts the output of blowers that supply air to the ventilation pipes inside the tunnel and dust collectors installed inside the tunnel. The environment (especially the air environment) at the tunnel face, which is the main work area for miners, varies greatly depending on the type of work. For example, the environment is not so bad when steel supports are being erected, but on the other hand, when excavating the tunnel face or spraying concrete, a lot of dust is generated and the environment becomes poor. In other words, it is desirable to operate the blowers and dust collectors with strengths adjusted according to the type of work. Therefore, the equipment control means 109 adjusts the output of the blowers and dust collectors according to the individual process selected by the selection means 102. For example, if the selection means 102 selects steel support construction as an individual process, the equipment control means 109 should operate the blower and dust collector at a relatively low output. If the selection means 102 selects face excavation or concrete spraying as an individual process, the equipment control means 109 should operate the blower and dust collector at a relatively high output. The equipment control means 109 should be installed in the same location as the selection means 102 (for example, in the administration building or construction site office), similar to the process display control means 114.

[0055] Furthermore, the equipment control means 109 can also adjust the output of the ventilation equipment (especially blowers) based on the air duct length calculated by the air duct length calculation means 108. The longer the air duct length, the greater the pressure loss. Naturally, the size of the blowers is planned based on the air duct length assumed just before the tunnel is completed, and therefore, when the air duct length reaches a certain extent, the blowers will operate at near-maximum output. In other words, when the air duct length is still short, there is no need to operate the blowers at such a high output. Therefore, the equipment control means 109 should calculate the pressure loss associated with ventilation based on the air duct length and adjust the output of the blowers according to that pressure loss. For example, when using a blower that operates at three output levels, the equipment control means 109 takes the calculated pressure loss into consideration and selects one of the three levels to operate the blower.

[0056] (Method for measuring operating time) The operating time measuring means 110 is attached to a blower and is a means for measuring the operating time of the blower while it is operated under the control of the equipment control means 109. The operating time measuring means 110 can also measure the operating time for each level of output of the blower (for example, three levels of output). Alternatively, the operating time measuring means 110 can be attached to various devices and equipment used at the construction site in addition to the blower, and the operating time of these devices can also be measured.

[0057] (Method for calculating CO2 emissions) The CO2 emission calculation means 111 calculates the CO2 emissions associated with the operation of a blower by multiplying the operating time of the blower, measured by the operating time measurement means 110, by the "CO2 emissions per unit time". This CO2 emissions per unit time are set in advance for each output level of the blower (for example, three output levels). Therefore, the CO2 emission calculation means 111 calculates the CO2 emissions by multiplying the operating time for each output level (for example, three output levels), measured by the operating time measurement means 110, by the CO2 emissions per unit time corresponding to that output, and summing them up. Furthermore, if the operating time measurement means 110 measures the operating time of various devices, etc., the CO2 emissions associated with the operation of these devices, etc. can also be calculated by multiplying their operating time by the "CO2 emissions per unit time". However, in this case, it is advisable to set the CO2 emissions per unit time for each device or piece of equipment.

[0058] The main processing flow when using the tunnel progress output system 100 of the present invention will be explained with reference to Figures 8 and 9. Figure 8 is a flowchart showing the main processing flow of the tunnel progress output system 100 up to the calculation of work time, and Figure 9 is a flowchart showing the main processing flow of the tunnel progress output system 100 up to the calculation of CO2 emissions. In Figures 8 and 9, the central column shows the processing to be performed, the left column shows the input information required for that processing, and the right column shows the output information generated from that processing.

[0059] For example, when a miner turns on the power to the headlights of the twin header (or road header), the trigger signal receiving means 101 receives the start trigger signal (Step 201 in Figure 8). The selection means 102 can select an individual process at the time the start trigger signal is received, but it is better to wait for a certain period of time after receiving the start trigger signal to eliminate noise such as operational errors (Step 202 in Figure 8). Then, once a predetermined period of time has elapsed (Yes in Step 203 in Figure 8), the process proceeds to the next step, and if the period of time has not elapsed (No in Step 203 in Figure 8), it continues to wait.

[0060] After a certain period has elapsed following the reception of the start trigger signal, the selection means 102 selects an individual process from among multiple individual processes that constitute the excavation cycle based on the trigger signal (start trigger signal) (Step 204 in Figure 8). At this time, it is preferable to make the selection by referring to the individual process selected as the previous process. For example, if a start trigger signal related to the headlight (specific electric equipment) of the side dump (machine used) is received, the selection means 102 will confirm that face excavation has been selected as the previous process and then select spoil removal as the individual process. Incidentally, in the pattern of "Individual Process 01" shown in Figure 1, the selection means 102 can identify one specific electric equipment and one machine used, but in the patterns of "Individual Process 02" and "Individual Process 03" shown in Figure 1, multiple pieces of information can be obtained, so the individual process can be selected using various methods.

[0061] For example, in the pattern of individual process 02, multiple specific electric devices are set for machine 1, so multiple trigger signals can be used. In this case, it is best to select the individual process after determining the "operating state" and "resting state" of each specific electric device. Figure 10(a) is a schematic model diagram showing the "operating state" and "resting state" of specific electric devices, and Figure 10(b) is a schematic model diagram showing how the individual process is selected according to the combination of operating and resting states. As shown in this diagram, the period from the time of receiving the start trigger signal for the same specific electric device to the time of receiving the stop trigger signal is considered the "operating state," and the period from the time of receiving the stop trigger signal for the same specific electric device to the time of receiving the next start trigger signal is considered the "resting state." The selection means 102 then selects "Steel support structure erection" as the individual process if, for example, the hydraulic pump (specific electric equipment) of the concrete spraying machine (machine used) is in operation and the compressor (specific electric equipment) is in a idle state, and selects "Concrete spraying" as the individual process if both the hydraulic pump and compressor of the concrete spraying machine are in operation.

[0062] Furthermore, in the pattern of individual process 03, since multiple machines are set for one individual process, multiple trigger signals can be used. In this case, it is preferable to determine the start and end points of the work time using trigger signals from different machines. Figure 11 is a schematic model diagram showing how individual processes are selected according to combinations of trigger signals from different machines. In the case of blasting excavation, since face excavation is performed after rock bolt installation, it is conceivable that a start trigger signal for the hydraulic pump (specific electric equipment) of the drill jumbo (machine used) is received at the start of rock bolt installation, and a stop trigger signal for the hydraulic pump of the drill jumbo is received at the end of face excavation. In other words, there is no trigger signal received that separates rock bolt installation and face excavation, and rock bolt installation and face excavation are judged as a series of individual processes (in this case, rock bolt installation is continuous), making it impossible to appropriately select rock bolt installation and face excavation.

[0063] Therefore, as shown in Figure 11, the selection means 102 utilizes a trigger signal related to a different machine (mortar injection pump) than the drill jumbo. For example, when the selection means 102 receives a start trigger signal related to the hydraulic pump of the drill jumbo, it determines that "rock bolt installation" has started, and when it receives a stop trigger signal related to the mortar injection pump, it determines that "rock bolt installation" has ended and "face excavation" has started. Then, when it receives a stop trigger signal related to the hydraulic pump of the drill jumbo, it determines that "face excavation" has ended. In other words, the selection means 102 selects "rock bolt installation" from the time it receives the start trigger signal related to the hydraulic pump of the drill jumbo until it receives the stop trigger signal related to the mortar injection pump, and selects "face excavation" from the time it receives the stop trigger signal related to the mortar injection pump until it receives the stop trigger signal related to the hydraulic pump of the drill jumbo. Here, the trigger signal receiving means 101 receives the start trigger signal related to the mortar injection pump after it receives the start trigger signal related to the hydraulic pump of the drill jumbo, and at that time it determines that "rock bolt installation" is continuing. Furthermore, if it is determined that "face excavation" has started when a stop trigger signal for the mortar injection pump is received, a longer working time may be calculated than the actual time. In this case, it is advisable to adjust the working time by subtracting the "correction time" before calculating.

[0064] When an individual process is selected by the selection means 102, the process display control means 114 displays that individual process on the process display means 115 (Step 205 in Figure 8), and the equipment control means 109 adjusts the output of the blower and dust collector according to that individual process (Step 206 in Figure 8).

[0065] When an individual process is completed, for example, when a miner turns off the power to the twin header (or road header) headlights, the trigger signal receiving means 101 receives a stop trigger signal (Step 207 in Figure 8). The selection means 102 then calculates the work time for that individual process, using the time when the start trigger signal was received as the starting point and the time when the stop trigger signal was received as the ending point (Step 208 in Figure 8). As previously mentioned, the work time can be determined by using "correction time".

[0066] Once individual processes are selected and their working times are calculated, it is determined whether the drilling cycle is complete or not (Step 209 in Figure 9). That is, if an intermediate individual process in the drilling cycle is selected (No in Step 209 in Figure 9), it is determined that the drilling cycle is not complete, and the selection of individual processes (Step 204 in Figure 8) is continued. On the other hand, if all the individual processes constituting the drilling cycle are selected (Yes in Step 209 in Figure 9), it is determined that the drilling cycle is complete, and the number of cycles is counted as 1, along with the cumulative number of cycles (Step 210 in Figure 9).

[0067] Once the number of cycles or cumulative number of cycles is recorded, the support pattern estimation means 104 estimates the "support pattern" of that excavation cycle (the excavation cycle for which the number of cycles was recorded) (Step 211 in Figure 9), and the pattern-specific excavation length setting means 105 sets the "pattern-specific excavation length" related to that support pattern and calculates the "tunnel excavation distance" (Step 212 in Figure 9).

[0068] Once the tunnel excavation distance is obtained, the schedule output means 107 updates the "shaded schedule" and outputs the shaded schedule to an output means 112 such as a display (Step 213 in Figure 9). The duct length calculation means 108 calculates the duct length based on the tunnel excavation distance calculated by the pattern-specific excavation length setting means 105 (Step 214 in Figure 9), and the equipment control means 109 calculates the pressure loss associated with blowing air based on the duct length and adjusts the output of the blower according to the pressure loss (Step 215 in Figure 9).

[0069] The operating time measuring means 110 measures the operating time of the blower, etc., continuously or periodically (Step 216 in Figure 9). The CO2 emission calculation means 111 then calculates the CO2 emissions associated with the operation of the blower, etc., continuously (or periodically) or in response to operator operations (Step 217 in Figure 9).

[0070] 3. Tunnel progress output method Next, the tunnel progress output method will be explained with reference to Figure 12. The tunnel progress output method is a method of outputting the degree of tunnel progress (cumulative cycle count and tunnel excavation distance) using the tunnel progress output system 100 described so far. Therefore, explanations that overlap with those described in the tunnel progress output system 100 will be avoided, and only the content specific to the tunnel progress output method will be explained. In other words, the content not described here is the same as that described in "2. Tunnel Progress Output System".

[0071] Figure 12 is a flowchart showing the main steps of the tunnel progress output method. As shown in this figure, first the trigger signal receiving means 101 receives the activation trigger signal (Step 301 in Figure 12). For example, when a miner turns on the power to the side dump headlight, the trigger signal receiving means 101 receives the activation trigger signal related to the side dump headlight.

[0072] Upon receiving a start trigger signal, the selection means 102 selects an individual process corresponding to that trigger signal (start trigger signal) (Step 302 in Figure 12). Then, the process display control means 114 displays that individual process on the process display means 115 (Step 303 in Figure 12), and the equipment control means 109 adjusts the output of the blower and dust collector according to that individual process (Step 304 in Figure 12).

[0073] When an individual process is completed, for example, when a miner turns off the power to the headlights on the side dump truck, the trigger signal receiving means 101 receives a stop trigger signal. The selection means 102 then calculates the work time for that individual process, using the time when the start trigger signal was received as the starting point and the time when the stop trigger signal was received as the ending point (Step 305 in Figure 12).

[0074] Once an individual process is selected and it is determined that the excavation cycle has been completed, the number of cycles is recorded, and the cumulative number of cycles is also recorded (Step 306 in Figure 12). Then, the "support pattern" for that excavation cycle is estimated (Step 307 in Figure 12), the "excavation length by pattern" related to that support pattern is set, and the "tunnel excavation distance" is calculated (Step 308 in Figure 12). Once the tunnel excavation distance is obtained, the "diagonal process schedule" is updated, and the diagonal process schedule is output to an output means 112 such as a display (Step 309 in Figure 12).

[0075] On the other hand, during construction, the operating time of blowers, etc. is measured continuously or periodically (Step 310 in Figure 12), and the CO2 emissions associated with their operation are calculated based on the operating time of the blowers, etc. (Step 311 in Figure 12). [Industrial applicability]

[0076] The tunnel progress output system of the present invention can be used at construction sites where multiple different individual processes, such as tunnel excavation, earthwork, and concrete work, are carried out in shifts. According to the present invention, the cycle time of construction can be efficiently analyzed, and as a result, appropriate cost management based on actual results can be performed, which in turn can lead to a reduction in the costs of construction infrastructure. Therefore, this invention is not only industrially applicable but also has the potential to make a significant contribution to society. [Explanation of Symbols]

[0077] 100 Tunnel progress output system of the present invention 101 (Tunnel progress output system) Trigger signal receiving means 102 Selection means (for tunnel progress output system) 103 (Circuit progress output system) Cycle counting means 104 (Tunnel progress output system) Support pattern estimation means 105 (Tunnel progress output system) Pattern-specific excavation length setting means 106 Cycle time calculation means (of the tunnel progress output system) 107 (Tunnel progress output system) Project schedule output means 108 (Tunnel progress output system) means for calculating wind pipe length 109 (Tunnel progress output system) Equipment control means 110 (Means for measuring the operating time of the tunnel progress output system) 111 (Tunnel progress output system) CO2 emission calculation means 112 Output means (of the tunnel progress output system) 113 (Tunnel progress output system) communication equipment 114 (Process display control means of tunnel progress output system) 115 (Process display means of tunnel progress output system) 116 Correction time storage means (of the tunnel progress output system) 117 (Support pattern storage means of tunnel progress output system) 118 Standard cycle time storage means (of tunnel progress output system) 119 (Excavation length storage means of tunnel progress output system)

Claims

1. A system that selects one individual process from among several different individual processes performed in tunnel excavation based on the power operation of an electric device installed in a construction machine, and outputs the progress status of tunnel excavation based on an excavation cycle consisting of a series of multiple types of such individual processes, A trigger signal receiving means mounted on the construction machine used in the aforementioned individual process, which receives a trigger signal related to the power operation of the electric equipment, Based on the trigger signal received by the trigger signal receiving means, a selection means selects the individual process, The system includes a cycle count counting means that, when a series of individual processes constituting the drilling cycle is selected, counts one cycle count and also counts a cumulative cycle count which is the sum of the said cycle counts, The trigger signal receiving means receives a start trigger signal when the power of a predetermined specific electric device among the electric devices installed in the construction machine is turned ON, and receives a stop trigger signal when the power of the specific electric device is turned OFF. The selection means selects the individual process based on the construction machine related to the trigger signal receiving means that has received the trigger signal. The cumulative number of cycles is output as the progress of tunnel excavation. A tunnel progress output system characterized by the following features.

2. A system that selects one individual process from among several different individual processes performed in tunnel excavation based on the power operation of an electric device installed in a construction machine, and outputs the progress status of tunnel excavation based on an excavation cycle consisting of a series of multiple types of such individual processes, A trigger signal receiving means mounted on the construction machine used in the aforementioned individual process, which receives a trigger signal related to the power operation of the electric equipment, Based on the trigger signal received by the trigger signal receiving means, a selection means selects the individual process, When a series of individual processes constituting the drilling cycle is selected, a cycle count counting means is provided which counts one cycle count and also counts the cumulative cycle count, which is the sum of the said cycle counts. When a series of individual processes constituting the excavation cycle are selected, a support pattern estimation means is provided to estimate the support pattern which is the type of the excavation cycle, The system includes a pattern-specific excavation length setting means that sets the pattern-specific excavation length according to the support pattern estimation means. The trigger signal receiving means receives a start trigger signal when the power of a predetermined specific electric device among the electric devices installed in the construction machine is turned ON, and receives a stop trigger signal when the power of the specific electric device is turned OFF. The selection means selects the individual process based on the construction machine related to the trigger signal receiving means that has received the trigger signal. The support pattern estimation means estimates the support pattern based on the sequence of the support patterns related to the pre-planned excavation cycle and the cumulative number of cycles. Based on the pattern-specific excavation length set by the pattern-specific excavation length setting means, the tunnel excavation distance is calculated. A tunnel progress output system characterized by the following features.

3. A system that selects one individual process from among several different individual processes performed in tunnel excavation based on the power operation of an electric device installed in a construction machine, and outputs the progress status of tunnel excavation based on an excavation cycle consisting of a series of multiple types of such individual processes, A trigger signal receiving means mounted on the construction machine used in the aforementioned individual process, which receives a trigger signal related to the power operation of the electric equipment, Based on the trigger signal received by the trigger signal receiving means, a selection means selects the individual process, When a series of individual processes constituting the drilling cycle is selected, a cycle count counting means for counting one cycle count is provided, When a series of individual processes constituting the drilling cycle is selected, a cycle time calculation means for calculating the drilling cycle time related to the drilling cycle is provided, A support pattern estimation means estimates a support pattern which is the type of excavation cycle based on the excavation cycle time calculated by the cycle time calculation means, The system further comprises a pattern-specific excavation length setting means that sets the pattern-specific excavation length according to the support pattern estimation means, The trigger signal receiving means receives a start trigger signal when the power of a predetermined specific electric device among the electric devices installed in the construction machine is turned ON, and receives a stop trigger signal when the power of the specific electric device is turned OFF. The selection means selects the individual process based on the construction machine related to the trigger signal receiving means that has received the trigger signal, and calculates the work time of the individual process based on the time of reception of the start trigger signal and the time of reception of the stop trigger signal. The cycle time calculation means calculates the excavation cycle time based on the work time for the individual processes that constitute the excavation cycle, The support pattern estimation means estimates the support pattern by comparing the standard excavation cycle time for each of the pre-set support patterns with the excavation cycle time. Based on the pattern-specific excavation length set by the pattern-specific excavation length setting means, the tunnel excavation distance is calculated. A tunnel progress output system characterized by the following features.

4. The system further includes a process chart output means that outputs a diagonal process chart representing the progress of tunnel excavation over time, on a graph composed of a first axis showing the progress of tunnel excavation and a second axis showing time. A tunnel progress output system according to any one of claims 1 to 3, characterized by the above.

5. A means for calculating the length of the ventilation pipe, which is the length over which the ventilation pipe is installed, based on the tunnel excavation distance, The equipment further comprises equipment control means for controlling a blower that supplies air to the ventilation duct, The equipment control means calculates the pressure loss associated with air supply based on the length of the air duct and adjusts the output of the blower according to the pressure loss. The tunnel progress output system according to claim 2 or 3, characterized in that it is the same as described in claim 3.

6. An operating time measuring means for measuring the operating time of the blower, which operates under the control of the equipment control means, The operating time of the blower for each output is determined by the CO2 per unit time set in advance for each output. ２ By multiplying by the emissions, the CO2 emissions associated with the operation of the blower can be calculated. ２ CO2 emissions are calculated ２ A means for calculating emissions, and further equipped, The tunnel progress output system according to claim 5, characterized in that it is the same as described in claim 5.

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