A warning method and system for the operation safety of trains in existing tunnels during inclined shaft construction ventilation

Abstract

The present invention discloses a method and system for warning of the running safety of trains in an existing tunnel during inclined shaft construction, so as to solve the problem that there is no warning of the running safety of trains in an existing tunnel during inclined shaft construction in the prior art. Among them, the warning method includes the steps of: determining the positions of the wind speed measuring points inside the existing tunnel; performing numerical simulation calculations according to the working conditions at the construction site to obtain the simulated measured wind speeds at the positions of the wind speed measuring points under different air intake speeds and different train speeds; obtaining the transverse force received by the train according to the simulated measured wind speeds; constructing a fitting equation for the transverse force received by the train; obtaining the on-site measured air intake speed and the on-site measured train speed and correcting the fitting equation by the former two; obtaining the instantaneous transverse force received by the train according to the instantaneous train speed and the instantaneous air intake wind speed; and when the instantaneous transverse force received by the train meets the set threshold, outputting a warning signal. The present invention can provide a warning of the running safety of trains in an existing tunnel, give guidance for inclined shaft construction, and ensure the running safety of trains.

Description

Technical Field

[0001] This application relates to the field of train operation safety. Specifically, it relates to a method and system for warning of the operation safety of trains in existing tunnels during inclined shaft construction ventilation. Background Art

[0002] Since the founding of New China, the construction of transportation infrastructure in China has developed vigorously, and the development of railways has been changing with each passing day. After more than 70 years of development, the operating mileage of China's railways has exceeded 1.4 million kilometers, and the construction center has gradually shifted to the southwest and northwest regions with high altitudes and many mountainous areas. Due to the long mileage of tunnels under construction, there are generally multiple ventilation stages and ventilation requirements for simultaneous tunneling of multiple working faces, and ventilation schemes are diverse. In the latest construction ventilation scheme, an attempt is made to use existing operating tunnels and inclined shafts for construction ventilation. This scheme is bound to have an impact on the operation of trains in existing tunnels and even cause train overturning.

[0003] Currently, there is no suitable technical solution to evaluate and warn the operation safety of trains under such ventilation conditions. Summary of the Invention

[0004] The technical problem to be solved by the present invention is how to provide a warning for the operation safety of trains when using existing operating tunnels and inclined shafts for construction ventilation. The purpose is to provide a method and system for warning of the operation safety of trains in existing tunnels during inclined shaft construction ventilation.

[0005] The present invention is realized by the following technical solutions:

[0006] On the one hand, the present invention provides a method for warning of the operation safety of trains in existing tunnels during inclined shaft construction ventilation. The method includes the following steps:

[0007] Determine the positions of wind speed measurement points inside the existing tunnel;

[0008] Perform numerical simulation calculations according to the construction site conditions to obtain the simulated measured wind speeds at the positions of the wind speed measurement points under different air intake speeds and different train speeds of the inclined shaft;

[0009] Obtain the transverse forces on the train corresponding to different air intake speeds and different vehicle speeds according to the simulated measured wind speeds;

[0010] Construct a fitting equation for the transverse force on the train with respect to the air intake speed and vehicle speed;

[0011] Obtain the on-site measured air intake speed and on-site measured train speed and correct the fitting equation with the former two;

[0012] Obtain the on-site instant train speed and instant air intake wind speed, and obtain the instant transverse force on the train based on the corrected fitting equation;

[0013] When the lateral force instantaneously received by the train meets the set threshold, an early warning signal is output.

[0014] In some possible embodiments, when performing numerical simulation calculations according to the construction site conditions to obtain the simulated measured wind speeds at the wind speed measurement point positions under different air intake speeds and different train speeds, the following contents are included:

[0015] Construct a three-dimensional model based on the three-dimensional computational fluid dynamics software;

[0016] Mark the wind speed measurement point positions in the three-dimensional model based on the on-site conditions;

[0017] Use unstructured grids to mesh the model calculation domain;

[0018] Taking different air intake speeds and different vehicle speeds as constraint conditions, apply the overlapping grid technique to simulate the train movement;

[0019] Extract the simulated measured wind speeds at the marked wind speed measurement point positions.

[0020] In some possible embodiments, the following formula is used to obtain the lateral force received by the train corresponding to different air intake speeds and different vehicle speeds based on the simulated measured wind speeds:

[0021] F = ρV 2 A / 2

[0022] Wherein, F is the lateral force received by the train; ρ is the air density; V is the measured wind speed at the measurement point; A is the projected area of the train in the crosswind direction.

[0023] In some possible embodiments, the fitting equation of the lateral force received by the train is obtained by using the CurveFitter tool of WELSIM, and the fitting equation of the lateral force received by the train is F = f(v Q , v C ), wherein, F is the lateral force received by the train, v Q is the air intake wind speed of the inclined shaft, v C is the train speed.

[0024] In some possible embodiments, when obtaining the on-site test air intake speed and the on-site test train speed and correcting the fitting equation with the former two, the following contents are included:

[0025] Obtain the actual measured wind speed at the on-site wind speed measurement point position, the on-site test train speed, and the on-site test air intake speed;

[0026] Based on the formula Obtain the actual lateral force received by the on-site train, wherein, F1 is the actual lateral force received by the on-site train, V1 is the actual measured wind speed, ρ is the air density, and A is the projected area of the train in the crosswind direction;

[0027] According to the on-site tested train speed and the on-site tested air intake speed, the fitting equation is corrected by using a high-precision fitting method. The corrected fitting equation is F = Af(v Q , v C ) + C, where A and C are correction parameters.

[0028] In some possible embodiments, the set threshold is the maximum safe overturning force corresponding to the train model.

[0029] On the other hand, the present invention provides a safety warning system for train operation in an existing tunnel during inclined shaft construction ventilation, which is used to implement the above-mentioned safety warning method for train operation in an existing tunnel during inclined shaft construction ventilation. The system includes:

[0030] A data acquisition module, which is used to acquire the instant air intake speed and the instant vehicle speed;

[0031] A data processing module, which is used to obtain the instant lateral force value received by the train according to the instant air intake speed and the instant vehicle speed, and is used to output a warning signal;

[0032] A control module, which is used to receive the warning signal and output an execution signal;

[0033] An execution module, which is used to respond to the execution signal and make a warning action.

[0034] In some possible embodiments, the data processing module includes an industrial PC upper computer.

[0035] In some possible embodiments, the execution module includes an electric gate installed at the connection between the inclined shaft and the existing tunnel.

[0036] In some possible embodiments, the data acquisition module includes a wind speed sensor installed in the inclined shaft and a speed measurement sensor installed on the top of the existing tunnel.

[0037] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0038] An evaluation method and a protection system for train operation safety under the condition of air intake in an existing tunnel provided by an embodiment of the present invention can obtain the instant lateral force received by the train when passing through the inclined shaft according to the instant train speed and the instant air intake speed, and can output a warning signal based on the instant lateral force, so as to provide correct guidance for the on-site ventilation construction work. At the same time, a corresponding protection plan can be made immediately based on the warning signal, thereby ensuring the operation safety of the train in the existing tunnel. Description of the Drawings

[0039] To more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0040] Figure 1 Schematic diagram of the process for the safety warning method of train operation in an existing tunnel during inclined shaft construction ventilation provided by an embodiment of the present invention;

[0041] Figure 2 Architecture diagram of the safety warning system for train operation in an existing tunnel during inclined shaft construction ventilation provided by an embodiment of the present invention;

[0042] Figure 3 Schematic diagram of the working process of the safety warning system for train operation in an existing tunnel during inclined shaft construction ventilation provided by an embodiment of the present invention. Detailed implementation manners

[0043] To make the objectives, technical solutions, and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in combination with the embodiments and the drawings. The illustrative embodiments and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention.

[0044] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present invention. However, it is obvious to those of ordinary skill in the art that the present invention does not have to be implemented with these specific details. In other embodiments, well-known structures, circuits, materials, or methods are not specifically described in order to avoid obscuring the present invention.

[0045] Throughout the specification, the reference to "one embodiment", "embodiment", "one example", or "example" means that the specific features, structures, or characteristics described in connection with that embodiment or example are included in at least one embodiment of the present invention. Thus, the phrases "one embodiment", "embodiment", "one example", or "example" appearing throughout the specification do not necessarily all refer to the same embodiment or example. In addition, the specific features, structures, or characteristics can be combined in any appropriate combination and / or sub-combination in one or more embodiments or examples.

[0046] Embodiment 1

[0047] As Figure 1 shown, an embodiment of the present application provides a safety warning method for train operation in an existing tunnel during inclined shaft construction ventilation, and the method includes the following steps:

[0048] Step S1, determine the positions of the internal wind speed measurement points in the existing tunnel.

[0049] In the embodiments of the present application, there are certain differences in the wind speeds of each segment near the inclined shaft in the existing tunnel. Therefore, the positions of the wind speed measurement points can be determined as multiple. When the train passes near the inclined shaft, the parameters of the working conditions of different segments of the train can be obtained.

[0050] Step S2: Perform numerical simulation calculations according to the working conditions of the construction site to obtain the simulated measured wind speeds at the positions of the wind speed measurement points under different air intake speeds and different train speeds of the inclined shaft.

[0051] In the embodiments of the present application, the numerical simulation calculations can be implemented through numerical simulation software. The numerical simulation software can adopt, for example, the Ansys Fluent three-dimensional computational fluid dynamics software after secondary development. In this software, a three-dimensional model of the existing tunnel is constructed, and marks are made at the corresponding positions in the three-dimensional model according to the above-determined positions of the wind speed measurement points. The non-structured grid is used to divide the grid of the model calculation domain. Several air intake speeds and several train speeds are set as constraint conditions, and the overlapping grid technology is applied to simulate the train movement, and the simulated measured wind speeds at the marked positions are extracted. Among them, if there are m kinds of air intake speeds and n kinds of train speeds, there are a total of m×n kinds of numerical simulation working conditions.

[0052] Step S3: Obtain the transverse forces on the train corresponding to different air intake speeds and different vehicle speeds according to the simulated measured wind speeds.

[0053] In the embodiments of the present application, the transverse force on the train can be calculated by the train transverse force calculation formula F = ρV 2 A / 2, where F is the transverse force on the train; ρ is the air density; V is the measured wind speed; A is the projected area of the train in the crosswind direction. Since the simulated measured wind speed is obtained in the three-dimensional mechanical model with the air intake speed and vehicle speed as constraint conditions, there is a one-to-one correspondence between the air intake speed and vehicle speed and the transverse force on the train.

[0054] In the embodiments of the present application, the above train transverse force calculation formula can be written into the Excel software in advance, and then the simulated measured wind speed values at multiple wind speed measurement positions are batch-imported into the Excel software for numerical batch processing, so as to batch-obtain the transverse force values on the train corresponding to multiple simulated measured wind speed values, and then extract the maximum transverse force value among multiple transverse force values on the train.

[0055] Step S4: Construct a fitting equation of the transverse force on the train with respect to the air intake speed and vehicle speed of the train.

[0056] In the embodiments of the present application, the CurveFitter tool of WELSIM can be used to fit the functional relationship between the transverse force on the train, the air intake speed, and the vehicle speed. The obtained fitting equation is F = f(v Q ,v C), where F is the lateral force on the train, and v Q is the air intake velocity in the inclined shaft, and v C is the train speed. Of course, in other embodiments, fitting tools such as Excel and Origin can also be used to fit the functional relationship between the lateral force on the train, the air intake velocity, and the train speed.

[0057] Step S5: Obtain the on-site measured air intake velocity and the on-site measured train speed, and correct the fitting equation with the former two.

[0058] In the embodiment of the present application, the correction process may include the following content:

[0059] First, obtain the on-site measured wind speed at the position of the wind speed measurement point in the existing tunnel on-site. Among them, the on-site measured wind speed can be obtained by arranging a wind speed sensor at the measurement point position; calculate the lateral force on the train based on the above train lateral force calculation formula, and then substitute the corresponding on-site train speed, on-site air intake velocity, and the calculated lateral force on the train into the previously obtained fitting equation, and use a high-precision fitting method to correct the parameters in the fitting equation. The corrected fitting equation is F = Af(v Q , v C ) + C, where A and C are correction parameters.

[0060] In the embodiment of the present application, the on-site air intake velocity can be measured by an anemometer arranged on-site, and the on-site train speed can be measured by an optoelectronic switch installed on the train track.

[0061] In the embodiment of the present application, the correlation coefficient of the corrected fitting equation should be greater than 0.9.

[0062] In some possible embodiments, when the existing tunnel is a double-track tunnel, the optoelectronic switches can be arranged 2 km longitudinally on both sides of the center of the inclined shaft and placed on the track slab. Two optoelectronic switches are arranged on each track slab, and a total of four optoelectronic switches are arranged to measure the speeds of two trains in the case of meeting; when the existing tunnel is a single-track tunnel, only one optoelectronic switch needs to be arranged 2 km longitudinally on both sides of the center of the inclined shaft.

[0063] Step S6: Obtain the on-site instantaneous train speed and the instantaneous air intake velocity, and obtain the instantaneous lateral force on the train based on the corrected fitting equation; when the instantaneous lateral force on the train meets the set threshold, an early warning signal is output.

[0064] In the embodiment of the present application, if the calculated lateral force value is less than the safe overturning force corresponding to the train model, no early warning is issued; if the calculated lateral force value is greater than the safe overturning force corresponding to the train model, an early warning is issued.

[0065] In summary, the method for warning of the running safety of trains in existing tunnels during inclined shaft construction ventilation provided by the embodiments of the present application can obtain the transverse force on the train based on the instantaneous air intake wind speed in the inclined shaft and the train speed in the existing tunnel, and output a warning signal according to whether the transverse force on the train is within the range of the safety tipping force threshold, so that construction workers or designers can judge that the air intake wind speed in the inclined shaft is abnormal, that is, the construction working conditions under the current air intake wind speed cannot ensure the running safety of trains in the existing tunnel, and then can provide certain construction or design guidance for construction workers or designers, and further ensure the running safety of trains during the whole construction process.

[0066] It should be understood that in the above embodiments, all or part of them can be implemented by software, hardware, firmware or any combination thereof. When implemented by software, all or part of it can be implemented in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, all or part of the processes or functions described in the embodiments of the present application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. The computer-readable storage medium can be any available medium that the computer can access, or a data storage device such as a server or a data center that includes one or more available media integrated. The available medium can be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)) and the like.

[0067] Embodiment 2

[0068] Refer to Figure 2 As shown, this embodiment provides a system for warning of the running safety of trains in existing tunnels during inclined shaft construction ventilation. The system can include a data acquisition module, a data processing module, a control module, and an execution module; the data acquisition module is used to acquire the instantaneous air intake wind speed and the instantaneous vehicle speed; the data processing module is used to obtain the instantaneous transverse force value on the train according to the instantaneous air intake wind speed and the instantaneous vehicle speed, and is used to output a warning signal; the control module is used to receive the warning signal and output an execution signal; the execution module is used to respond to the execution signal and make a warning action.

[0069] In the embodiments of the present application, the data acquisition module can include a wind speed sensor and a photoelectric switch. The wind speed sensor is used to be arranged at the planned wind speed measurement points in the existing tunnel and in the inclined shaft to monitor the instantaneous air intake wind speed and the instantaneous measurement point wind speed; the photoelectric switch is used to be installed on the track to monitor the train speed.

[0070] In the embodiment of the present application, the data processing module may adopt an industrial PC host computer. The data processing module obtains the instant vehicle speed and the instant air intake speed, then performs calculations based on the corrected cross force fitting equation of the train to obtain the cross force result of the train, and then issues a warning signal according to the cross force result of the train.

[0071] In the embodiment of the present application, the control module may adopt a motion control card.

[0072] In the embodiment of the present application, the execution module may be configured as an electric gate, which is connected to the control module and controlled by the control module to make a warning action.

[0073] Specifically, the wind speed sensor adopts a three-cup anemometer, and a low-inertia wind vane and a precision potentiometer are selected; the data acquisition module may further include a data collector, which is equipped with a GPRS wireless connection function, can receive the data of the wind speed sensor, and send the data to the data processing module through an optical fiber network. Among them, the data collector adopts an embedded processor and consists of three modules: an input module, an operation module, and a communication module; the input module is used to perform AD conversion on the data sent by the received sensor; the operation module is used to judge whether the received data is accurate to judge whether the system has a fault, and send a fault code in case of a fault; the communication module is used to upload the data to the data processing module, and the communication module can respond and upload according to special instructions.

[0074] Specifically, the safety warning system for the operation of trains in the existing tunnel during the construction ventilation of the inclined shaft always has a data exchange and instruction release process. Through the GPRS module and using the optical fiber network, the wind speed data of each measuring point can be transmitted to the data management system. A further technical solution is to use a commercial 5G network to replace the optical fiber network to reduce costs.

[0075] Specifically, the PC host computer in the data processing module can select Advantech IPC.610H, with the motherboard model AIMB-742, using the Intel865G / 865GV chipset, on-board AGP8X slot and 1 AGP slot, 2 ISA slots / 5 PCI slots, with good anti-interference and expansion performance, which can meet the usage requirements of the system.

[0076] Specifically, as Figure 3 shown in the working flow chart of the control system, the electric gate can be installed at the intersection of the inclined shaft and the existing tunnel, and can block the entire inclined shaft passage when closed. A servo motor is installed on the electric gate and is controlled by a motion control card to control the opening and closing of the electric gate. The working process of the entire control system is as follows:

[0077] The data processing module processes on-site data. If the processing result reaches the warning condition, it sends a warning signal to the control system. The control module controls the electric gate to close, cutting off the influence of the inclined shaft air intake on the existing tunnel flow field. If the processing result does not reach the warning condition, the control module continues to wait for the warning signal from the data processing module. It should be noted that for the train meeting situation in a double-track tunnel, the fan operation can be stopped while closing the electric gate to reduce the influence brought by the system response time.

[0078] A further solution is that the fan power can be dynamically adjusted according to the on-site situation to achieve the dynamic balance between construction ventilation and the safe operation of trains.

[0079] In summary, an early warning system for the safe operation of trains in an existing tunnel during inclined shaft construction ventilation provided by the embodiment of the present application can make corresponding warning actions according to the processing result of the data processing module, such as closing the electric gate, so as to achieve emergency protection when the current air intake wind speed is abnormal, and then can avoid the risk of train overturning and ensure the safe operation of trains.

[0080] It should be noted that the detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0081] It should be understood that the "system", "device" and / or "module" used in the present invention is a method for distinguishing different components, elements, parts, portions or assemblies at different levels. However, if other words can achieve the same purpose, the said words can be replaced by other expressions.

[0082] As shown in the present invention and the claims, unless the context clearly indicates an exception, words such as "a", "an", "one" and / or "the" are not specifically singular and may also include the plural. Generally, the terms "comprising" and "including" only indicate the inclusion of the clearly identified steps and elements, and these steps and elements do not constitute an exclusive list, and the method or device may also include other steps or elements.

[0083] Flowcharts are used in the present invention to illustrate the operations performed by the systems according to the embodiments of the present application. It should be understood that the previous or subsequent operations do not necessarily need to be executed precisely in sequence. On the contrary, they can be executed in reverse order or simultaneously. At the same time, other operations can also be added to these processes, or one or several steps can be removed from these processes.

[0084] The specific embodiments described above further elaborate on the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only the specific embodiments of the present invention and is not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A safety warning method for train operation in an existing tunnel during inclined shaft construction ventilation, characterized in that, The method includes the following steps: Determine the positions of the wind speed measurement points inside the existing tunnel; Conduct numerical simulation calculations according to the construction site conditions to obtain the simulated measured wind speeds at the positions of the wind speed measurement points under different air intake speeds and different train speeds of the inclined shaft; Obtain the transverse forces on the train corresponding to different air intake speeds and different vehicle speeds based on the simulated measured wind speeds; Construct a fitting equation for the transverse force on the train with respect to the air intake speed and vehicle speed of the train; Obtain the on-site measured air intake speed and on-site measured train speed and correct the fitting equation with the former two; Obtain the on-site instantaneous train speed and instantaneous air intake wind speed, and obtain the instantaneous transverse force on the train based on the corrected fitting equation; When the instantaneous transverse force on the train meets the set threshold, output a warning signal.

2. The safety warning method for the operation of trains in existing tunnels during inclined shaft construction ventilation according to claim 1, characterized in that, When conducting numerical simulation calculations according to the construction site conditions to obtain the simulated measured wind speeds at the positions of the wind speed measurement points under different air intake speeds and different train speeds, it includes the following contents: Construct a three-dimensional model based on three-dimensional computational fluid dynamics software; Mark the positions of the wind speed measurement points in the three-dimensional model based on the on-site conditions; Use unstructured grids to divide the mesh of the model calculation domain; Take different air intake speeds and different vehicle speeds as constraint conditions and apply the overlapping grid technology to simulate the train movement; Extract the simulated measured wind speeds at the marked positions of the wind speed measurement points.

3. The method for warning of the running safety of trains in existing tunnels during inclined shaft construction ventilation according to claim 1, characterized in that, When obtaining the transverse forces on the train corresponding to different air intake speeds and different vehicle speeds based on the simulated measured wind speeds, the following formula is used: F = ρV 2 A / 2 Where, F is the transverse force on the train; ρ is the air density; V is the measured wind speed at the point; A is the projected area of the train in the crosswind direction.

4. The safety early warning method for the operation of trains in existing tunnels during inclined shaft construction ventilation according to claim 1, wherein The fitting equation of the lateral force on the train is obtained by using the CurveFitter tool of WELSIM, and the fitting equation of the lateral force on the train is F = f(v Q , v C ), where F is the lateral force on the train, v Q is the air intake velocity of the inclined shaft, and v C is the train speed.

5. The safety warning method for the operation of trains in existing tunnels during inclined shaft construction ventilation according to claim 4, characterized in that, When obtaining the on-site measured air intake speed and on-site measured train speed and correcting the fitting equation with the former two, it includes the following contents: Obtain the actual measured wind speed, on-site measured train speed, and on-site measured air intake speed at the position of the on-site wind speed measurement point; Based on the formula Obtain the actual lateral force suffered by the on-site train. Among them, F1 is the actual lateral force suffered by the on-site train, V1 is the actual measured wind speed at the measuring point, ρ is the air density, and A is the projected area of the train in the crosswind direction; According to the on-site test train speed and the on-site test air intake speed, the fitting equation is corrected by using a high-precision fitting method. The corrected fitting equation is F = Af(v Q , v C ) + C, where A and C are correction parameters.

6. The safety warning method for the operation of trains in existing tunnels during inclined shaft construction ventilation according to claim 1, characterized in that, The set threshold is the maximum safe overturning force corresponding to the train model.

7. An early warning system for the operation safety of trains in existing tunnels during inclined shaft construction ventilation, which is used to implement the early warning method for the operation safety of trains in existing tunnels during inclined shaft construction ventilation as described in any one of claims 1 to 6, is characterized in that It includes: A data acquisition module, which is used to acquire the instantaneous air intake wind speed and instantaneous vehicle speed; A data processing module, which is used to obtain the instantaneous transverse force value on the train according to the instantaneous air intake wind speed and instantaneous vehicle speed, and is used to output a warning signal; A control module, which is used to receive the warning signal and output an execution signal; An execution module, which is used to respond to the execution signal and make a warning action.

8. The warning system for the safe operation of trains in existing tunnels during inclined shaft construction according to claim 7, characterized in that, The data processing module includes an industrial PC host computer.

9. The safety early warning system for the operation of trains in existing tunnels during inclined shaft construction according to claim 7, characterized in that, The execution module includes an electric gate used to be installed at the connection of the inclined shaft and the existing tunnel.

10. The safety warning system for the operation of trains in existing tunnels during inclined shaft construction according to claim 7, characterized in that The data acquisition module includes a wind speed sensor used to be installed in the inclined shaft and a speed measurement sensor used to be installed on the top of the existing tunnel.

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