Method for intelligently judging tunnel construction procedures

Abstract

According to the technical scheme, the method comprises the following steps that after a tunnel face is determined, the range of 30 meters of the tunnel face is a distinguishing fence area, the activity state value of an element of the fence area of tunnel construction is set to be V, and a plurality of state values are set for the fence area according to the appearing characteristics of the element of the fence area; if no machine is detected in the fence area, V is judged to be equal to 0; if a machine exists in the fence area, the state values are set to be V = 1, 2, 3 and 4 in sequence according to the types of the machines, such as rock drilling excavation, loading deslagging, arch support and spray mixing; and if various landmark machines appear in the fence area, the judgment is performed according to the priority sequence of spraying and mixing, rock drilling, arch centering and loading. The method for intelligently judging the tunnel construction procedures can assist in optimizing the tunnel construction procedures, the construction efficiency can be improved, and the construction period can be shortened.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel construction, and particularly relates to a method for intelligently discriminating tunnel construction processes. Background Art

[0002] In order to improve the efficiency of tunnel construction, it is often necessary to discriminate the duration of tunnel construction and understand the construction status of tunnel construction. However, the statistical work efficiency of each process basically relies on manual reporting, and the work efficiency data is not objective and the statistics are not timely.

[0003] The existing Chinese patent with the publication number CN115130920A discloses an automatic discrimination method for the excavation and initial support cycle process of full-mechanized tunnel construction, including the following steps: judging whether there is equipment entering the site according to the distance between the equipment and the tunnel face, judging whether there is an ongoing cycle plan and process according to the time sequence, and comparing the type of the equipment entering the site with the equipment type corresponding to the process to judge which process is currently in progress.

[0004] The above patent has some advantages, but there are also some disadvantages, such as: the judgment method is slightly complicated. Summary of the Invention

[0005] Aiming at the problems mentioned in the background art, the purpose of the present invention is to provide a method for intelligently discriminating tunnel construction processes to solve the problems mentioned in the background art.

[0006] The above technical purpose of the present invention is achieved through the following technical solutions:

[0007] A method for intelligently discriminating tunnel construction processes includes the following steps: after determining the tunnel face, a 30-meter range around the tunnel face is set as a discrimination fence area, the activity status value of the fence area elements of tunnel construction is set as V, and several status values are set for the fence area according to the characteristics of the appearance of the fence area elements;

[0008] If no machinery is detected in the fence area, it is determined that V = 0;

[0009] If there is one kind of machinery in the fence area, the status value is set as V = 1, 2, 3, 4 in sequence according to the machinery type, namely rock drilling and excavation, loading and mucking, arch support, and shotcrete;

[0010] If multiple iconic machineries appear in the fence area, the priority order of shotcrete, rock drilling, arch, and loading is determined, specifically:

[0011] There is a shotcrete truck, V = 4;

[0012] There is no wet shotcrete truck and there is a rock drill, it is determined as rock drilling, V = 1;

[0013] No rock drill jumbo, no wet shotcreting machine, with a steel arch carrier, judged as support, V = 3;

[0014] No rock drill jumbo, no wet shotcreting machine, no steel arch carrier, with a loader, judged as mucking, V = 2;

[0015] Record the start and end times of the above states and calculate the duration T;

[0016] Obtain a series of state time data (V, T) for the fenced area, construct a function Sk = f(Vk, Tk), and use the function Sk to judge the operation content and start and end times of the current working area;

[0017] Construct a state transition table to judge the current process S(K); represent each row field in the first column of the state transition table as the previous - previous process S(k - 2), and each column field in the first row as the previous process S(K - 1). Each cell in the table of the state transition table represents the value of S(K)=f(S(K - 2), S(K - 1)); judge the process through the constructed state transition table.

[0018] Preferably, the previous processes in the state transition table include idle, rock drill jumbo excavation, loader mucking, and wet shotcreting machine spraying; the previous - previous processes in the state transition table include idle, rock drill jumbo excavation, loader mucking, steel arch carrier support, and wet shotcreting machine spraying; each cell in the table of the state transition table represents S(K) including 0, support, and abnormal working condition; when the previous process is idle and the previous - previous process is idle, S(K) is 0; when the previous process is idle and the previous - previous process is rock drill jumbo excavation, loader mucking, or steel arch carrier support, S(K) is support; when the previous process is idle and the previous - previous process is wet shotcreting machine spraying, S(K) is abnormal working condition; when the previous process is rock drill jumbo excavation and the previous - previous process is rock drill jumbo excavation, S(K) is 0; when the previous process is rock drill jumbo excavation and the previous - previous process is idle or loader mucking, S(K) is support; when the previous process is rock drill jumbo excavation and the previous - previous process is steel arch carrier support or wet shotcreting machine spraying, S(K) is abnormal working condition; when the previous process is loader mucking and the previous - previous process is loader mucking, S(K) is 0; when the previous process is loader mucking and the previous - previous process is idle, rock drill jumbo excavation, steel arch carrier support, or wet shotcreting machine spraying, S(K) is support; when the previous process is wet shotcreting machine spraying and the previous - previous process is idle, rock drill jumbo excavation, loader mucking, or steel arch carrier support, S(K) is abnormal working condition; when the previous process is wet shotcreting machine spraying and the previous - previous process is wet shotcreting machine spraying, S(K) is 0.

[0019] Preferably, through on-site personnel and machinery positioning, and using the pile number of the current work point construction log as the judgment standard for recording, when the personnel / machinery enters 30m from the tunnel face, it is considered that the current process has started, and when the machine exits 30m from the tunnel face, it is considered that the current process has ended. The start and end time of the process are automatically recorded, and relevant records are formed for a cycle.

[0020] Preferably, after the tunnel face is determined, the area within 30 meters of the tunnel face is defined as a fence area, and some iconic machinery enters and leaves the fence area as a cycle; and ensure that the positioning base station can cover the range.

[0021] Preferably, the process is recorded during construction. When personnel and machinery enter the site, they enter the electronic fence range, then arrive at the face and start working. When the work is completed, they leave the site and leave the electronic fence range. When the work is completed, the construction log is filled in on site, and then the construction pile number is recorded to form a realistic record of the process; wherein the entry time is recorded when entering the electronic fence range, and the exit time is recorded when the work leaves the site and leaves the electronic fence range, the process market is calculated based on the recorded entry time and the recorded exit time, and the calculated process market forms a realistic record of the process.

[0022] Preferably, the pile number position of the current face on site is recorded by the on-site technicians on site every day, and the start and end time of each construction process is recorded in a table and reported to the headquarters dispatch center.

[0023] Preferably, the start time of the cycle is the start time of the excavation process, and the end time of the cycle is the end time of the spraying and mixing process; wherein the current process is divided into four parts: excavation, slag discharge, support, and spraying and mixing.

[0024] Preferably, the machine corresponding to the excavation process is a three-arm rock drilling trolley, the machine corresponding to the slag removal process is a loader, the machine corresponding to the support process is an arch installation trolley, and the machine corresponding to the spraying and mixing process is a wet spraying machine.

[0025] Preferably, a mobile terminal is used to record data when identifying the fence area. The data recorded by the mobile terminal includes a status value set for the fence area, status time data of the fence area, and status transition table data. The mobile terminal is connected to a central server via a mobile communication module, and the central server is connected to a data storage module.

[0026] In summary, the present invention mainly has the following beneficial effects:

[0027] This intelligent method for identifying tunnel construction procedures can assist in optimizing the tunnel construction process, improve construction efficiency, and shorten the construction period. It can accurately monitor the construction progress in real time, count the time used for each procedure and the connection time between procedures, and solve the problems of the existing procedure management being not compact and transparent, and the work efficiency statistics being not objective and timely. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a flow chart of the present invention. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example 1

[0031] A method for intelligently distinguishing tunnel construction procedures comprises the following steps: after determining the tunnel face, the 30-meter range of the tunnel face is a distinguishing fence area, the activity state value of the fence area element of the tunnel construction is set to V, and according to the characteristics of the fence area element, a number of state values ​​are set for the fence area;

[0032] If no machinery is detected in the fence area, it is determined as V = 0;

[0033] If there is a machine in the fenced area, the status value is set to V=1, 2, 3, 4 in sequence according to the type of machine, such as rock drilling and excavation, loading and slag discharge, arch support, and spray mixing;

[0034] If there are multiple iconic machines in the fenced area, the priority order will be based on spraying, rock drilling, arching, and loading, as follows:

[0035] For injection-mixed vehicles, V = 4;

[0036] There is no wet spraying truck, but there is a rock drill, so it is judged as rock drilling, V = 1;

[0037] There is no rock drill, no wet shotcrete machine, but there is an arch truck, so it is judged as support, V=3;

[0038] There is no rock drill, no wet shotcrete machine, no arch truck, but there is a loader, so it is judged as slag discharge, V=2;

[0039] Record the start and end time of the above state and calculate the duration T;

[0040] Obtain a series of status time data (V, T) for the fence area, construct the function Sk = f(Vk, Tk), and use the function Sk to determine the operation content and start and end times of the current work area;

[0041] Construct a state transition table to determine the current process S(K); represent each row field in the first column of the state transition table as the previous - previous process S(k - 2), and each column field in the first row as the previous process S(K - 1). Each cell in the table of the state transition table represents the value of S(K)=f(S(K - 2), S(K - 1)); judge the process through the constructed state transition table.

[0042] Among them, the previous processes in the state transition table include idle, rock - drilling rig excavation, loader mucking, and wet - spraying machine spraying; the previous - previous processes in the state transition table include idle, rock - drilling rig excavation, loader mucking, arch - frame vehicle support, and wet - spraying machine spraying; each cell in the table of the state transition table represents S(K) including 0, support, and abnormal working conditions; when the previous process is idle and the previous - previous process is idle, S(K) is 0; when the previous process is idle and the previous - previous process is rock - drilling rig excavation, loader mucking, or arch - frame vehicle support, S(K) is support; when the previous process is idle and the previous - previous process is wet - spraying machine spraying, S(K) is abnormal working conditions; when the previous process is rock - drilling rig excavation and the previous - previous process is rock - drilling rig excavation, S(K) is 0; when the previous process is rock - drilling rig excavation and the previous - previous process is idle or loader mucking, S(K) is support; when the previous process is rock - drilling rig excavation and the previous - previous process is arch - frame vehicle support or wet - spraying machine spraying, S(K) is abnormal working conditions; when the previous process is loader mucking and the previous - previous process is loader mucking, S(K) is 0; when the previous process is loader mucking and the previous - previous process is idle, rock - drilling rig excavation, arch - frame vehicle support, or wet - spraying machine spraying, S(K) is support; when the previous process is wet - spraying machine spraying and the previous - previous process is idle, rock - drilling rig excavation, loader mucking, or arch - frame vehicle support, S(K) is abnormal working conditions; when the previous process is wet - spraying machine spraying and the previous - previous process is wet - spraying machine spraying, S(K) is 0.

[0043] Among them, through on - site personnel and machinery positioning, and taking the stake number in the construction log of the current work point as the judgment standard for recording. When the personnel / machinery enters within 30m of the heading face, it is considered that the current process starts working. When the machinery exits within 30m of the heading face, it is considered that the current process ends working. Automatically record the start and end times of the process, form relevant records, and conduct a cycle.

[0044] Among them, after determining the heading face, the area within 30 meters of the heading face is the discrimination fence area. Taking a certain iconic machinery entering and leaving the fence area as one cycle; and ensure that the positioning base station can cover this range.

[0045] Among them, during construction, process records are made. When personnel and machinery enter the site, they enter the electronic fence area, then reach the heading face to start operations. After the operations are completed, they leave the site and the electronic fence area. When the operations are completed, the construction log is filled out on-site, and then the construction stake number is recorded to form a process realistic record. Among them, the entry time is recorded when entering the electronic fence area, and the exit time is recorded when leaving the site and the electronic fence area after the operations. The process duration is calculated based on the recorded entry time and exit time, and the calculated process duration is formed into a process realistic record.

[0046] Among them, the stake number position of the current heading face on-site is recorded by on-site technicians every day for the start and end times of each process construction, forming a table and reporting it to the headquarters dispatching center.

[0047] Among them, the start time of the cycle is the start time of the excavation process, and the end time of the cycle is the end time of the shotcrete process. Among them, the current process is divided into four parts: excavation, mucking, support, and shotcrete.

[0048] Among them, the machinery corresponding to the excavation process is a three-boom rock drilling jumbo, the machinery corresponding to the mucking process is a loader, the machinery corresponding to the support process is an arch installation jumbo, and the machinery corresponding to the shotcrete process is a wet shotcreting machine.

[0049] Among them, when discriminating the fence area, a mobile terminal is used to record data. The data recorded by the mobile terminal includes the status value set for the fence area, the status time data of the fence area, and the status conversion table data. The mobile terminal is connected to the central server through a mobile communication module, and the central server is connected to a data storage module.

[0050] Among them, this method for intelligently discriminating tunnel construction processes can assist in optimizing the tunnel construction process, improve construction efficiency, and shorten the construction period. It can accurately monitor the construction progress in real time, statistically calculate the process duration and the connection time between processes, and solve the problems of the existing process management being not compact and transparent, and the work efficiency statistics being not objective and timely.

[0051] Embodiment 2

[0052] Reference Figure 1 , a method for intelligently discriminating tunnel construction processes, includes the following steps: After personnel and machinery enter the site, they enter the electronic fence area, then reach the heading face to start operations. After the operations are completed, they leave the site and the electronic fence area. When the operations are completed, the construction log is filled out on-site, and then the construction stake number is recorded to form a process realistic record. Among them, the entry time is recorded when entering the electronic fence area, and the exit time is recorded when leaving the site and the electronic fence area after the operations. The process duration is calculated based on the recorded entry time and exit time, and the calculated process duration is formed into a process realistic record.

[0053] Among them, in the determination of the fence area, after determining the heading face, the area within 30 meters of the heading face is defined as the discrimination fence area. The entry and exit of a certain iconic machine into and out of the fence area are regarded as one cycle, and it is ensured that the positioning base station can cover this range.

[0054] Among them, the activity status value of the fence area element is set to V, and several status values are set for the fence area according to the characteristics of the appearance of the fence area elements.

[0055] If no machine is detected in the fence area, it is determined that V = 0;

[0056] If there is one kind of machine in the fence area, the status value is set to V = 1, 2, 3, 4 in sequence according to the machine type, namely rock drilling and excavation, loading and mucking, arch support, and shotcrete;

[0057] If multiple iconic machines appear in the fence area, it is determined according to the priority order of shotcrete, rock drilling, arch, and loading. Specifically:

[0058] (A) There is a shotcrete truck, V = 4;

[0059] (B) There is no wet shotcrete truck, but there is a rock drill, and it is determined as rock drilling, V = 1;

[0060] (C) There is no rock drill truck, no wet shotcrete machine, but there is an arch truck, and it is determined as support, V = 3;

[0061] (D) There is no rock drill truck, no wet shotcrete machine, no arch truck, but there is a loader, and it is determined as mucking, V = 2.

[0062] Record the start and end times of the above status and calculate the duration T;

[0063] Obtain a string of status time data (V, T) of the fence area, construct a function Sk = f(Vk, Tk), and judge the operation content, start time, and end time of the current operation area through the function Sk.

[0064] Among them, the stake number position of the current heading face on site is recorded by the on-site technician every day at the start and end times of each construction process, forming a table and reporting it to the headquarters dispatching center.

[0065] Among them, through the positioning of on-site personnel and machines, and taking the stake number in the current construction log as the judgment standard for recording. When the personnel / machine enters 30m away from the heading face, it is considered that the current process starts operation. When the machine exits 30m away from the heading face, it is considered that the current process ends operation. Automatically record the start and end times of the process, form relevant records, and conduct cycles.

[0066] Among them, the start time of the cycle is the start time of the excavation process, and the end time of the cycle is the end time of the shotcrete process; the current process is divided into four parts: excavation, mucking, support, and shotcrete.

[0067] Among them, the machine corresponding to the excavation process is a three-boom rock drilling jumbo, the machine corresponding to the mucking process is a loader, the machine corresponding to the support process is an arch installation jumbo, and the machine corresponding to the shotcrete process is a wet shotcreting machine.

[0068] Among them, this method for intelligently discriminating tunnel construction processes can assist in optimizing the tunnel construction process, improve construction efficiency, and shorten the construction period. It can accurately monitor the construction progress in real time, count the time used for processes and the connection time between processes, and solve the problems of loose and opaque existing process management, and inaccurate and untimely work efficiency statistics.

[0069] Embodiment 3

[0070] In addition to the method provided in Embodiment 1, this embodiment also provides a process cycle record. The current stake number position of the face is recorded by the on-site technician every day at the site for the start and end times of each construction process, forming a table and reporting it to the headquarters dispatching center. The actual on-site record of a process cycle is as follows:

[0071] Table 1 On-site process cycle time table

[0072]

[0073]

[0074]

[0075] I. Current system implementation idea

[0076] Through the positioning of on-site personnel and machinery, using the unique correspondence between processes and machinery, and taking the construction log stake number of the current work point as the judgment standard. When the personnel / machinery enters within 30m of the face (the construction log stake number filled in the nearest date), it is considered that the current process starts working. When the machinery exits within 30m of the face, it is considered that the current process ends working, automatically records the start and end times of the process, and forms relevant records. The start time of the cycle is the start time of the excavation process, and the end time of the cycle is the end time of the shotcrete process.

[0077] The current process is divided into four parts: excavation, mucking, support, and shotcrete. The corresponding relationships between each process and machinery are as follows:

[0078] Table 2 Corresponding relationships between each process and machinery

[0079] Serial number Process Corresponding machinery 1 Excavation Three-boom rock drilling jumbo 2 Mucking Loader 3 Support Arch installation jumbo 4 Shotcrete Wet shotcreting machine

[0080] II. Optimization Directions and Logic (Without Personnel Activity Data)

[0081] 1. Determination of the Fenced Area. After determining the tunnel face, the area within 30 meters of the tunnel face is the discriminative fenced area. When a certain iconic machine enters and leaves the fenced area, it is regarded as one cycle. (It is necessary to ensure that the positioning base station can cover this area)

[0082] 2. Activity Status Value V of the Fenced Area Elements. According to the characteristics of the elements appearing in the fenced area, several status values are set for the fenced area.

[0083] (1) If no machine is detected in the fenced area, it is determined that V = 0. (This algorithm does not consider introducing personnel activity data)

[0084] (2) If there is one type of machine in the fenced area, the status value is based on the type of machine. According to rock drilling (excavation), loading (mucking), arch support, and shotcrete, the status values are V = 1, 2, 3, 4 respectively;

[0085] (3) If multiple iconic machines appear in the fenced area. It is determined according to the priority order of shotcrete, rock drilling, arch support, and loading. Specifically:

[0086] (A) If there is a shotcrete truck, V = 4;

[0087] (B) If there is no wet shotcrete machine but there is a rock drill, it is determined as rock drilling, V = 1;

[0088] (C) If there is no rock drill, no wet shotcrete machine, but there is an arch support vehicle, it is determined as support, V = 3;

[0089] (D) If there is no rock drill, no wet shotcrete machine, no arch support vehicle, but there is a loader, it is determined as mucking, V = 2.

[0090] Record the start and end times of the above status and calculate the duration T.

[0091] In this way, we obtain a series of status time data (V, T) of the fenced area. To determine what operation is being carried out in the fenced area, we need to construct a function Sk = f(Vk, Tk), and use the function Sk to judge the operation content and start and end times of the current operation area.

[0092] 3. Process Judgment Algorithm

[0093] Construct a state transition table to judge the current process.

[0094] The fields in each row of the first column in the table represent the previous - previous process S(k - 2), and the fields in each column of the first row represent the previous process S(K - 1). Each value in the table represents S(K)=f(S(K - 2), S(K - 1)).

[0095] Taking the state transition table with the current state being "support" as an example, cell A23 (the 3rd column in the 2nd row) in the table indicates the following sequence: First, rock drilling is determined as excavation on-site, then a loader appears and is determined as mucking, and now an arch truck appears and is determined as support.

[0096] Table 3 State Transition Table with the Current State being "Support"

[0097]

[0098] In addition, cell A25 (the 5th column in the 2nd row) in the table indicates the following sequence: First, rock drilling is determined as excavation on-site, then a wet shotcrete truck appears for shotcreting, and now an arch truck appears.

[0099] For this situation, proceed sequentially according to the process sequence and finally correct it manually.

[0100] For example: If the current state is support, the previous step is determined as shotcreting, and the step before that is determined as rock drilling, then starting from rock drilling to the previous step of shotcreting is determined as one cycle, and the process record of the current support is recorded in the next cycle.

[0101] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for intelligently identifying tunnel construction procedures, characterized in that: After the tunnel face is determined, the 30-meter range of the tunnel face is the identification fence area, and the activity state value of the fence area element of the tunnel construction is set to V. According to the characteristics of the fence area elements, several state values ​​are set for the fence area; If no machinery is detected in the fence area, it is determined as V = 0; If there is a machine in the fenced area, the status value is set to V=1, 2, 3, 4 in sequence according to the type of machine, such as rock drilling and excavation, loading and slag discharge, arch support, and spray mixing; If there are multiple iconic machines in the fenced area, the priority order will be based on spraying, rock drilling, arching, and loading, as follows: For injection-mixed vehicles, V = 4; There is no wet spraying truck, but there is a rock drill, so it is judged as rock drilling, V = 1; There is no rock drill, no wet shotcrete machine, but there is an arch truck, so it is judged as support, V=3; There is no rock drill, no wet shotcrete machine, no arch truck, but there is a loader, so it is judged as slag discharge, V=2; Record the start and end time of the above state and calculate the duration T; Get a string of fence area status time data (V, T), constructor Sk = f (Vk, Tk), and use function Sk to determine the operation content and start and end time of the current operation area; Construct a state transition table to determine the current process S(K); the fields in each row of the first column in the state transition table represent the previous process S(k-2), and the fields in each column of the first row represent the previous process S(K-1), and each cell in the state transition table represents the value of S(K)=f(S(K-2),S(K-1)); determine the process through the constructed state transition table.

2. The method for intelligently identifying tunnel construction procedures according to claim 1, characterized in that: The previous process in the state transition table includes idle, rock drilling vehicle excavation, loader slag discharge, and spraying and mixing by a spraying machine; the previous previous process in the state transition table includes idle, rock drilling vehicle excavation, loader slag discharge, arch frame vehicle support, and spraying and mixing by a spraying machine; each cell in the state transition table represents S(K), including 0, support, and abnormal working condition; when the previous process is idle and the previous previous process is idle, S(K) is 0; when the previous process is idle and the previous previous process is rock drilling vehicle excavation, loader slag discharge, and arch frame vehicle support, S(K) is support; when the previous process is idle and the previous previous process is spraying and mixing by a spraying machine, S(K) is abnormal working condition; when the previous process is rock drilling vehicle excavation and the previous previous process is rock drilling vehicle excavation, S(K) is 0 ; When the previous process is excavation by a rock drill, and the previous process before that is idle and the loader is slagging, S(K) is support; when the previous process is excavation by a rock drill, and the previous process before that is support by an arch frame vehicle and mixing by a spraying machine, S(K) is an abnormal working condition; when the previous process is slagging by a loader, and the previous process before that is loader slagging, S(K) is 0; when the previous process is loader slagging, and the previous process before that is idle, excavation by a rock drill, support by an arch frame vehicle, and mixing by a spraying machine, S(K) is support; when the previous process is mixing by a spraying machine, and the previous process before that is idle, excavation by a rock drill, support by an arch frame vehicle, S(K) is an abnormal working condition; when the previous process is mixing by a spraying machine, and the previous process before that is mixing by a spraying machine, S(K) is 0.

3. The method for intelligently identifying tunnel construction procedures according to claim 1, characterized in that: Through on-site personnel and machinery positioning, and using the pile number of the current work point construction log as the judgment standard for recording, when the personnel / machinery enters 30m away from the tunnel face, it is considered that the current process has started, and when the machine exits 30m away from the tunnel face, it is considered that the current process has ended. The start and end time of the process are automatically recorded, and relevant records are formed for a cycle.

4. The method for intelligently distinguishing tunnel construction procedures according to claim 3, characterized in that: After the tunnel face is determined, the 30-meter range of the tunnel face is defined as a fence area, and a certain landmark machine enters and leaves the fence area as a cycle; and ensure that the positioning base station can cover the range.

5. The method for intelligently distinguishing tunnel construction procedures according to claim 1, characterized in that: During construction, process records are made. When personnel and machinery enter the site, they enter the electronic fence range, then arrive at the face and start working. When the work is completed, they leave the site and leave the electronic fence range. When the work is completed, the construction log is filled in on site, and then the construction pile number is recorded to form a realistic record of the process; wherein the entry time is recorded when entering the electronic fence range, and the exit time is recorded when the work leaves the site and leaves the electronic fence range. The process market is calculated based on the recorded entry time and the recorded exit time, and the calculated process market forms a realistic record of the process.

6. The method for intelligently identifying tunnel construction procedures according to claim 5, characterized in that: The current pile number position of the face is recorded by the on-site technicians on site every day, along with the start and end time of each construction process, and a table is formed and reported to the headquarters dispatch center.

7. The method for intelligently identifying tunnel construction procedures according to claim 6, characterized in that: The start time of the cycle is the start time of the excavation process, and the end time of the cycle is the end time of the spraying and mixing process; the current process is divided into four parts: excavation, slag discharge, support, and spraying and mixing.

8. A method for intelligently identifying tunnel construction procedures according to claim 7, characterized in that: The machine corresponding to the excavation process is a three-arm rock drilling trolley, the machine corresponding to the slag removal process is a loader, the machine corresponding to the support process is an arch installation trolley, and the machine corresponding to the spraying and mixing process is a wet spraying machine.

9. A method for intelligently distinguishing tunnel construction procedures according to claim 7, characterized in that: When identifying the fence area, a mobile terminal is used to record data. The data recorded by the mobile terminal includes the status value set for the fence area, the status time data of the fence area, and the status conversion table data. The mobile terminal is connected to the central server through a mobile communication module, and the central server is connected to a data storage module.

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