Expressway construction safety risk assessment system

Abstract

The invention, which relates to the technical field of risk assessment, discloses an expressway construction safety risk assessment system comprising a construction environment information acquisition module, a tunnel air risk assessment and processing unit, a tunnel water inrush safety processing unit and a local database. By monitoring the air quality of the tunnel construction area to which the expressway belongs and intelligently regulating and controlling the ventilator for the tunnel in the tunnel construction area to which the expressway belongs, inflammable gas and harmful gas are discharged through air circulation, and the dust content in the tunnel is emphasized; according to the method, whether the dust explosion problem occurs due to friction in the tunnel is judged, the interior of the tunnel is humidified, dynamic monitoring and early warning are conducted on the water inrush problem occurring in the tunnel of the expressway, humidity increase caused by dust humidification operation is considered, it is guaranteed that the situation that the water inrush problem deteriorates can be found in time, and the safety of the expressway is guaranteed. And therefore, the harm to constructors is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of risk assessment, and in particular to a highway construction safety risk assessment system. Background Art

[0002] With the rapid development of society, the construction of highways is increasing. Tunnels are an important part of highways, and their safety is directly related to the quality of the entire highway. Tunnels are inevitably worn out after long-term use, and thus require maintenance and construction. However, traditional tunnel construction safety risk assessment methods have problems of randomness and ambiguity, and it is difficult to accurately reflect the risk status of actual construction. Therefore, it is particularly important to conduct effective risk assessment of highway tunnel construction safety.

[0003] Prior art, such as the invention patent application with announcement number: CN117830063B, discloses a mountain highway construction safety risk management system, which system includes: collecting characteristic information of the slopes on both sides of a set section of the mountain highway and characteristic information of the highway surface, constructing a slope data analysis model to analyze the risk data of the slopes, and at the same time constructing a highway data analysis model to analyze the risk data of the highway, and transmitting the safety risks obtained during the construction process, thereby improving the efficiency and accuracy of risk monitoring and early warning of mountain highway construction.

[0004] The prior art, such as the invention patent application with announcement number: CN118171950A, discloses a method for establishing and evaluating a quantitative index system for highway construction safety resilience, which includes: 1. Screening and extracting production safety factors; 2. Establishing a quantitative index system for safety resilience; 3. Calculating and evaluating safety resilience: reviewing scenarios with low safety resilience in highway construction projects and conducting targeted safety evaluations. The quantitative index system for safety resilience is designed to measure the ability and adaptability of highway construction in the face of various risks and challenges, and to reasonably add points based on additional resilience measures, so that the safety evaluation of construction projects is more scientific and reliable, and to improve awareness of safety resilience.

[0005] It can be seen from the above scheme that the current highway construction safety risk assessment system lacks certain attention to the air quality analysis of highway tunnels based on construction personnel and passing vehicles during construction. During construction in highway tunnels, a certain amount of flammable gas, harmful gas and harmful dust will be generated. Due to the lack of air circulation in highway tunnels, some auxiliary ventilation equipment is often required for ventilation. However, the traditional method generally adjusts the auxiliary ventilation equipment to the rated output, and does not dynamically adjust it according to the content of flammable gas, etc., which is prone to high power consumption or inability to discharge gas. In addition, the humidity in the tunnel is sometimes low. If the dust content in the tunnel is too high at this time and there are high-speed vehicles passing by, dust explosion is likely to occur. At the same time, there is a lack of attention to the dynamic monitoring and early warning of water inrush problems in highway tunnels. During tunnel construction, sometimes the problem of high groundwater is encountered, resulting in water inrush problems, which requires the use of steel arch plates for reinforcement. However, the traditional method lacks monitoring after reinforcement. When the groundwater level pressure is high, the water inrush problem is prone to worsen, thereby endangering the safety of construction personnel. Summary of the invention

[0006] The purpose of the present invention is to provide a highway construction safety risk assessment system to solve the problems existing in the background technology.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions: The present invention provides a highway construction safety risk assessment system, including: a construction environment information acquisition module, used to obtain the content of each allowed lane, each flammable gas and each harmful gas in the tunnel construction area of ​​the highway during the current working time period.

[0008] The tunnel air risk assessment and processing unit is used to monitor the air quality of the tunnel construction area of ​​the expressway, and intelligently control the tunnel ventilators in the tunnel construction area of ​​the expressway. After using the tunnel ventilators, the humidity of each measurement feature point and the content of each harmful dust in the tunnel construction area of ​​the expressway are monitored to determine whether dust hazards occur in the tunnel construction area of ​​the expressway. If so, humidification operations are performed.

[0009] The tunnel construction risk assessment unit includes: a flammable gas threat analysis module, a harmful gas threat analysis module, a ventilation processing module, and a dust threat analysis and processing module.

[0010] The flammable gas threat analysis module is used to analyze the combustion hazard coefficient of each flammable gas in the tunnel construction area of ​​the expressway.

[0011] The harmful gas threat analysis module is used to obtain the age and medical history of each worker in the tunnel construction area of ​​the expressway during the current working period, and analyze the employee infringement coefficient of each harmful gas in the tunnel construction area of ​​the expressway.

[0012] The ventilation processing module is used to evaluate the working power of the tunnel ventilator in the tunnel construction area of ​​the expressway.

[0013] The dust threat analysis and processing module is used to obtain the humidity and the content of harmful dust at each measurement feature point in the tunnel construction area of ​​the expressway after using a tunnel ventilator in the tunnel construction area of ​​the expressway, and obtain the model of each vehicle on the expressway within the target monitoring time period, to determine whether dust hazards occur in the tunnel construction area of ​​the expressway, and if so, to calculate the humidity increase value of the tunnel construction area of ​​the expressway.

[0014] The tunnel water inrush safety processing unit is used to conduct real-time monitoring of various water inrush prevention areas in the tunnel construction area of ​​the expressway by using an intelligent vehicle, to determine whether there are deterioration problems in various water inrush prevention areas in the tunnel construction area of ​​the expressway, and if so, to issue an early warning to the person in charge of the tunnel construction.

[0015] The tunnel water inrush safety processing unit comprises: a tunnel water inrush threat analysis module and a tunnel water inrush processing module.

[0016] The tunnel water inrush threat analysis module is used to obtain various water inrush prevention areas in the tunnel construction area of ​​the expressway, and reinforce the various water inrush prevention areas in the tunnel construction area of ​​the expressway through steel arch frames, obtain the real-time surface humidity of each contact area between each water inrush prevention area in the tunnel construction area of ​​the expressway and the steel arch frames through an intelligent vehicle, obtain the real-time appearance images of each steel arch frame in each water inrush prevention area in the tunnel construction area of ​​the expressway, and analyze the deterioration hazard coefficient of each water inrush prevention area in the tunnel construction area of ​​the expressway.

[0017] The tunnel water inrush processing module is used to screen various deteriorated water inrush areas in the tunnel construction area of ​​the expressway and send them to the person in charge of the tunnel construction.

[0018] The beneficial effects of the present invention are as follows: (1) The construction environment information acquisition module of the present invention acquires various information data of the tunnel construction area of ​​the expressway, thereby facilitating subsequent analysis.

[0019] (2) The tunnel air risk assessment and treatment unit of the present invention monitors the air quality of the tunnel construction area of ​​the expressway and intelligently controls the tunnel ventilators in the tunnel construction area of ​​the expressway, thereby reducing power consumption and discharging flammable gases and harmful gases through air circulation. In addition, the present invention pays attention to the dust content in the tunnel, and combines the humidity in the tunnel and the type of vehicles passing through to determine whether dust explosions will occur in the tunnel due to friction. If a problem occurs, the tunnel is humidified to ensure the safety of construction personnel and construction sites.

[0020] (3) The tunnel water inrush safety treatment unit of the present invention dynamically monitors and warns of water inrush problems occurring in highway tunnels, and considering the increase in humidity caused by dust humidification operations, intelligently screens the various deteriorating water inrush areas in the tunnel construction area of ​​the highway, thereby ensuring that the deterioration of the water inrush problem can be discovered in time and the person in charge of tunnel construction can be warned, thereby reducing the harm to construction personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the system module of the present invention. DETAILED DESCRIPTION

[0023] 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.

[0024] Reference Figure 1 As shown, the present invention provides a highway construction safety risk assessment system, including: a construction environment information acquisition module, a tunnel air risk assessment and processing unit, a tunnel water inrush safety processing unit and a local database.

[0025] It should be noted that the construction environment information acquisition module is connected to the tunnel air risk assessment and processing unit, the tunnel air risk assessment and processing unit is connected to the tunnel water inrush safety processing unit, and the local database is connected to the tunnel air risk assessment and processing unit and the tunnel water inrush safety processing unit.

[0026] It should also be noted that the local database is used to store the age of each staff member in the tunnel construction area of ​​the expressway during the current working time period, each past medical history, the humidity increase value corresponding to each dust comprehensive hazard coefficient interval, the combustion content threshold of each flammable gas, the age allowable content upper limit of each harmful gas in each age interval, the medical history allowable content upper limit of each harmful gas in each past medical history, the distance of the tunnel ventilator from the nearest tunnel entrance, the working efficiency of the tunnel ventilator in discharging flammable gases in each distance interval and each combustion hazard coefficient interval, and the upper limit content of each harmful dust in each humidity interval. value, threshold value of comprehensive dust hazard coefficient, upper limit of allowable speed for each lane in the tunnel construction area of ​​the expressway, friction hazard coefficient between each vehicle type and each harmful dust at the maximum upper limit of allowable speed and each average content range, hazard coefficient adjustment parameter value of each harmful dust at each average humidity range and each maximum friction hazard coefficient range, threshold value of deterioration hazard coefficient, initial surface humidity of each contact area between each water inrush prevention area and steel arch frame in the tunnel construction area of ​​the expressway, initial installation appearance image of each steel arch frame in each water inrush prevention area in the tunnel construction area of ​​the expressway, and image suitability similarity.

[0027] The construction environment information acquisition module is used to obtain the contents of each allowed traffic lane, each flammable gas and each harmful gas in the tunnel construction area of ​​the expressway during the current working time period.

[0028] In a specific embodiment, the method for obtaining the allowed traffic lanes, the content of each flammable gas and the content of each harmful gas in the tunnel construction area of ​​the expressway during the current working time period is as follows: obtaining the content of each flammable gas and the content of each harmful gas in the tunnel construction area of ​​the expressway during the current working time period through a gas detector, and obtaining the allowed traffic lanes in the tunnel construction area of ​​the expressway during the current working time period through a tunnel engineering plan.

[0029] It should be noted that the flammable gases include flammable gases such as methane, ethane and hydrogen.

[0030] It should also be noted that the harmful gases include: carbon monoxide, hydrogen sulfide, ammonia and other harmful gases, and the harmful gases do not include the flammable gases.

[0031] The construction environment information acquisition module of the present invention acquires various information data of the tunnel construction area of ​​the expressway, thereby facilitating subsequent analysis.

[0032] The tunnel air risk assessment and processing unit is used to monitor the air quality of the tunnel construction area of ​​the expressway, and intelligently adjust the tunnel ventilator in the tunnel construction area of ​​the expressway. After using the tunnel ventilator, the humidity of each measurement feature point and the content of each harmful dust in the tunnel construction area of ​​the expressway are monitored to determine whether dust hazards occur in the tunnel construction area of ​​the expressway. If so, humidification operation is performed.

[0033] In a specific embodiment of the present invention, the tunnel construction risk assessment unit includes: a flammable gas threat analysis module, a harmful gas threat analysis module, a ventilation processing module, and a dust threat analysis and processing module.

[0034] The flammable gas threat analysis module is used to analyze the combustion hazard coefficient of each flammable gas in the tunnel construction area of ​​the expressway.

[0035] The harmful gas threat analysis module is used to obtain the age and medical history of each worker in the tunnel construction area of ​​the expressway during the current working period, and analyze the employee infringement coefficient of each harmful gas in the tunnel construction area of ​​the expressway.

[0036] In a specific embodiment, the age and past medical history of each staff member in the tunnel construction area of ​​the expressway during the current working time period are obtained by a specific method: the age and past medical history of each staff member in the tunnel construction area of ​​the expressway during the current working time period are obtained from a local database.

[0037] The ventilation processing module is used to evaluate the working power of the tunnel ventilator in the tunnel construction area of ​​the expressway.

[0038] The dust threat analysis and processing module is used to obtain the humidity and the content of harmful dust at each measurement feature point in the tunnel construction area of ​​the expressway after using a tunnel ventilator in the tunnel construction area of ​​the expressway, and obtain the model of each vehicle on the expressway within the target monitoring time period, to determine whether dust hazards occur in the tunnel construction area of ​​the expressway, and if so, to calculate the humidity increase value of the tunnel construction area of ​​the expressway.

[0039] In a specific embodiment, the humidity and the content of harmful dust at each measurement feature point in the tunnel construction area of ​​the expressway are obtained by the following specific method: the content of harmful dust at each measurement feature point in the tunnel construction area of ​​the expressway is obtained from a dust detector carried by a smart car, and the humidity at each measurement feature point in the tunnel construction area of ​​the expressway is obtained from a humidity detector carried by the smart car.

[0040] In a specific embodiment, the method for obtaining the vehicle type of each vehicle on the expressway within the target monitoring time period is as follows: obtaining the vehicle type of each vehicle on the expressway within the target monitoring time period from an ETC (electronic toll collection system).

[0041] In a specific embodiment, the humidity increase value of the tunnel construction area to which the expressway belongs is calculated by obtaining the humidity increase value corresponding to each dust comprehensive hazard coefficient interval from a local database, and mapping the humidity increase value of the tunnel construction area to which the expressway belongs according to the dust comprehensive hazard coefficient of the tunnel construction area to which the expressway belongs.

[0042] In a specific embodiment of the present invention, the combustion hazard coefficient of each flammable gas in the tunnel construction area of ​​the expressway is analyzed, and the specific analysis method is as follows: the combustion content threshold of each flammable gas is obtained from the local database, and the combustion content threshold of each flammable gas in the tunnel construction area of ​​the expressway in the current working time period is extracted according to the flammable gases in the tunnel construction area of ​​the expressway in the current working time period. , where x represents the number of each flammable gas, , y is a positive integer greater than 2.

[0043] According to the content of various flammable gases in the tunnel construction area of ​​the expressway during the current working period , analyze the combustion hazard coefficient of various flammable gases in the tunnel construction area of ​​the expressway , where e is represented by a natural constant.

[0044] In a specific embodiment of the present invention, the employee infringement coefficient of each harmful gas in the tunnel construction area belonging to the expressway is analyzed, and the specific analysis method is: obtaining the upper limit value of the age-allowed content of each harmful gas in each age range from the local database, and mapping the upper limit value of the age-allowed content of each harmful gas of each staff member in the tunnel construction area belonging to the expressway according to the age of each staff member in the tunnel construction area belonging to the expressway during the current working time period.

[0045] The upper limit value of the allowable medical history content of each harmful gas in each past medical history is obtained from the local database, and based on the past medical history of each staff member in the tunnel construction area of ​​the expressway during the current working time period, the upper limit value of the allowable medical history content of each harmful gas in the past medical history of each staff member in the tunnel construction area of ​​the expressway is mapped, and the maximum upper limit value of the allowable medical history content of each harmful gas of each staff member in the tunnel construction area of ​​the expressway is extracted.

[0046] Analyze the maximum suitable upper limit of each harmful gas content in the tunnel construction area of ​​the expressway , where n represents the number of each harmful gas, , m is a positive integer greater than 2.

[0047] According to the content of harmful gases in the tunnel construction area of ​​the expressway during the current working period , analyze the employee harm coefficient of various harmful gases in the tunnel construction area of ​​the expressway .

[0048] In a specific embodiment, the maximum suitable upper limit value of the content of each harmful gas in the tunnel construction area of ​​the expressway is analyzed, and the specific analysis method is: compare the maximum medical history allowable upper limit value of the content of each harmful gas of each staff member in the tunnel construction area of ​​the expressway with the age allowable upper limit value of the content; if the maximum medical history allowable upper limit value of the content of a certain harmful gas of a staff member in the tunnel construction area of ​​the expressway is less than the age allowable upper limit value, then the age allowable upper limit value of the content of the harmful gas of the staff member in the tunnel construction area of ​​the expressway is used as the suitable upper limit value of the content; otherwise, the maximum medical history allowable upper limit value of the content of the harmful gas of the staff member in the tunnel construction area of ​​the expressway is used as the suitable upper limit value of the content, thereby screening the suitable upper limit values ​​of the content of each harmful gas of each staff member in the tunnel construction area of ​​the expressway, and extracting the maximum suitable upper limit value of the content of each harmful gas in the tunnel construction area of ​​the expressway.

[0049] In a specific embodiment of the present invention, the working power of the tunnel ventilator in the tunnel construction area of ​​the expressway is evaluated by a specific evaluation method: obtaining the distance between the tunnel ventilator and the nearest tunnel entrance from a local database.

[0050] The working efficiency of tunnel ventilators for discharging flammable gases in each distance interval and each combustion hazard coefficient interval is obtained from the local database. According to the combustion hazard coefficients of various flammable gases in the tunnel construction area of ​​the expressway, the working efficiency of tunnel ventilators for discharging flammable gases in the tunnel construction area of ​​the expressway is mapped, and the maximum working efficiency of tunnel ventilators for discharging flammable gases in the tunnel construction area of ​​the expressway is extracted.

[0051] According to the employee harm coefficient of each harmful gas in the tunnel construction area of ​​the expressway, the maximum harmful gas exhaust efficiency of the tunnel ventilator in the tunnel construction area of ​​the expressway is obtained by the same token.

[0052] The maximum flammable gas exhaust efficiency and the maximum harmful gas exhaust efficiency of the tunnel ventilator in the tunnel construction area of ​​the expressway are compared, and the larger one is used as the working power of the tunnel ventilator in the tunnel construction area of ​​the expressway.

[0053] In a specific embodiment of the present invention, the method for determining whether dust hazard occurs in the tunnel construction area of ​​the expressway is as follows: obtaining the upper limit content value of each harmful dust in each humidity range from the local database, and mapping the upper limit content value of each harmful dust at each measuring feature point in the tunnel construction area of ​​the expressway according to the humidity of each measuring feature point. , where i represents the number of each measurement feature point, , j is a positive integer greater than 2, t represents the number of each harmful dust, , s is a positive integer greater than 2.

[0054] According to the harmful dust content of each measurement feature point in the tunnel construction area of ​​the expressway , calculate the hazard coefficient of each harmful dust at each measurement feature point in the tunnel construction area of ​​the expressway , and calculate the comprehensive dust hazard coefficient of the tunnel construction area of ​​the expressway based on the types of vehicles on the expressway during the target monitoring period.

[0055] A dust comprehensive hazard coefficient threshold is obtained from a local database. If the dust comprehensive hazard coefficient of the tunnel construction area of ​​the expressway is greater than the dust comprehensive hazard coefficient threshold, it is determined that dust hazard occurs in the tunnel construction area of ​​the expressway.

[0056] In a specific embodiment of the present invention, the comprehensive dust hazard coefficient of the tunnel construction area belonging to the expressway is calculated by obtaining the upper limit of the allowable speed of each lane allowed to pass in the tunnel construction area belonging to the expressway from the local database, and extracting the maximum upper limit of the allowable speed of the lane allowed to pass in the tunnel construction area belonging to the expressway.

[0057] According to the humidity of each measuring characteristic point and the content of each harmful dust in the tunnel construction area of ​​the expressway, the average humidity and the average content of each harmful dust in the tunnel construction area of ​​the expressway are calculated.

[0058] The friction hazard coefficient between each vehicle type and each harmful dust under the maximum allowable speed limit and each average content range is obtained from the local database. According to the vehicle type of each vehicle on the expressway within the target monitoring time period, the friction hazard coefficient between each vehicle and each harmful dust on the expressway within the target monitoring time period is mapped, and the maximum friction hazard coefficient between each harmful dust and vehicle on the expressway within the target monitoring time period is extracted.

[0059] The hazard coefficient adjustment parameter values ​​of each harmful dust in each average humidity range and each maximum friction hazard coefficient range are obtained from the local database, and the hazard coefficient adjustment parameter values ​​of each harmful dust in the tunnel construction area of ​​the expressway are mapped. , calculate the comprehensive dust hazard coefficient of the tunnel construction area of ​​the expressway .

[0060] The tunnel air risk assessment and processing unit of the present invention monitors the air quality of the tunnel construction area belonging to the expressway and intelligently controls the tunnel ventilators in the tunnel construction area belonging to the expressway, thereby reducing power consumption and discharging flammable gases and harmful gases through air circulation. In addition, the present invention pays attention to the dust content in the tunnel, and combines the humidity in the tunnel and the type of vehicles passing through to determine whether dust explosion will occur in the tunnel due to friction. If a problem occurs, the tunnel is humidified to ensure the safety of construction personnel and construction sites.

[0061] The tunnel water inrush safety processing unit is used to monitor the various water inrush prevention areas in the tunnel construction area of ​​the expressway in real time by using an intelligent vehicle, and determine whether there are deterioration problems in the various water inrush prevention areas in the tunnel construction area of ​​the expressway. If so, an early warning is issued to the person in charge of the tunnel construction.

[0062] In a specific embodiment of the present invention, the tunnel water inrush safety processing unit includes: a tunnel water inrush threat analysis module and a tunnel water inrush processing module.

[0063] The tunnel water inrush threat analysis module is used to obtain various water inrush prevention areas in the tunnel construction area of ​​the expressway, and reinforce the various water inrush prevention areas in the tunnel construction area of ​​the expressway through steel arch frames, obtain the real-time surface humidity of each contact area between each water inrush prevention area in the tunnel construction area of ​​the expressway and the steel arch frames through an intelligent vehicle, obtain the real-time appearance images of each steel arch frame in each water inrush prevention area in the tunnel construction area of ​​the expressway, and analyze the deterioration hazard coefficient of each water inrush prevention area in the tunnel construction area of ​​the expressway.

[0064] In a specific embodiment, the various water inrush prevention areas in the tunnel construction area belonging to the expressway are obtained by a specific method: the existing method for measuring the water inrush prevention area is relatively mature, and the various water inrush prevention areas in the tunnel construction area belonging to the expressway can be obtained by the existing method for measuring the water inrush prevention area, such as the horizontal sound wave reflection method.

[0065] In a specific embodiment, the real-time surface humidity of each contact area between each water inrush prevention area and the steel arch frame in the tunnel construction area of ​​the expressway is obtained, and the real-time appearance images of each steel arch frame in each water inrush prevention area in the tunnel construction area of ​​the expressway are obtained. The specific acquisition method is: the real-time surface humidity of each contact area between each water inrush prevention area and the steel arch frame in the tunnel construction area of ​​the expressway is obtained by a humidity detector carried by a smart car, and the real-time appearance images of each steel arch frame in each water inrush prevention area in the tunnel construction area of ​​the expressway are obtained by a camera carried by the smart car.

[0066] The tunnel water inrush processing module is used to screen various deteriorated water inrush areas in the tunnel construction area of ​​the expressway and send them to the person in charge of the tunnel construction.

[0067] In a specific embodiment, the screening of the various deteriorated water inrush areas in the tunnel construction area belonging to the expressway, the specific screening method is: obtaining the deterioration hazard coefficient threshold from the local database, comparing the deterioration hazard coefficient of each water inrush prevention area in the tunnel construction area belonging to the expressway with the deterioration hazard coefficient threshold, if the deterioration hazard coefficient of a water inrush prevention area in the tunnel construction area belonging to the expressway is greater than the deterioration hazard coefficient threshold, then marking the water inrush prevention area as a deteriorated water inrush area, thereby screening the various deteriorated water inrush areas in the tunnel construction area belonging to the expressway.

[0068] In a specific embodiment of the present invention, the deterioration hazard coefficient of each water inrush prevention area in the tunnel construction area of ​​the expressway is analyzed, and the specific analysis method is: according to the real-time appearance images of each steel arch frame in each water inrush prevention area in the tunnel construction area of ​​the expressway, the deformation threat coefficient of the steel arch frame in each water inrush prevention area in the tunnel construction area of ​​the expressway is analyzed. , where N represents each water inrush prevention area, , M is a positive integer greater than 2.

[0069] Obtain the initial surface humidity of each water inrush prevention area and each contact area of ​​the steel arch frame in the tunnel construction area of ​​the expressway from the local database , where E represents the contact area, , F is a positive integer greater than 2.

[0070] Based on the real-time surface humidity of each water inrush prevention area and each contact area of ​​the steel arch frame in the tunnel construction area of ​​the expressway According to the humidity increase value C of the tunnel construction area of ​​the expressway, the humidity deterioration coefficient of each flood inrush prevention area of ​​the tunnel construction area of ​​the expressway is calculated. .

[0071] Analyze the deterioration hazard coefficient of each flood prevention area in the tunnel construction area of ​​the expressway .

[0072] In a specific embodiment of the present invention, the deformation threat coefficient of the steel arch frames in each water inrush prevention area of ​​the tunnel construction area belonging to the expressway is analyzed, and the specific analysis method is: obtaining the initial installation appearance image of each steel arch frame in each water inrush prevention area of ​​the tunnel construction area belonging to the expressway from the local database.

[0073] The real-time appearance images of each steel arch frame in each water inrush prevention area of ​​the tunnel construction area of ​​the expressway are compared with the initial installation appearance image to obtain the similarity between the real-time appearance images of each steel arch frame in each water inrush prevention area of ​​the tunnel construction area of ​​the expressway and the initial installation appearance image. , where T represents the number of each steel arch frame, , S is a positive integer greater than 2, P represents the number of each real-time appearance image, , Q is a positive integer greater than 2.

[0074] Obtain the appropriate image similarity L from the local database and analyze the steel arch deformation threat coefficient of each water inrush prevention area in the tunnel construction area of ​​the highway .

[0075] The tunnel water inrush safety processing unit of the present invention dynamically monitors and warns of water inrush problems occurring in highway tunnels, and considering the increase in humidity caused by dust humidification operations, intelligently screens the various deteriorated water inrush areas in the tunnel construction area of ​​the highway, thereby ensuring that the deterioration of the water inrush problem can be discovered in time, and the person in charge of the tunnel construction can be warned, thereby reducing the harm to the construction personnel.

[0076] The above contents are merely examples and explanations of the concept of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the concept of the invention or exceed the scope defined by the present invention, they shall all fall within the protection scope of the present invention.

Claims

1. A highway construction safety risk assessment system, characterized in that: include: The construction environment information acquisition module is used to obtain the contents of each allowed traffic lane, each flammable gas and each harmful gas in the tunnel construction area of ​​the expressway during the current working period; The tunnel air risk assessment and processing unit is used to monitor the air quality of the tunnel construction area of ​​the expressway and intelligently control the tunnel ventilator in the tunnel construction area of ​​the expressway. After using the tunnel ventilator, the unit monitors the humidity of each measurement feature point and the content of each harmful dust in the tunnel construction area of ​​the expressway to determine whether dust hazards occur in the tunnel construction area of ​​the expressway. If so, humidification operation is performed; The tunnel water inrush safety processing unit is used to conduct real-time monitoring of various water inrush prevention areas in the tunnel construction area of ​​the expressway by using an intelligent vehicle, and to determine whether there are deterioration problems in the various water inrush prevention areas in the tunnel construction area of ​​the expressway. If so, an early warning will be issued to the person in charge of the tunnel construction.

2. A highway construction safety risk assessment system according to claim 1, characterized in that: The tunnel construction risk assessment unit includes: a flammable gas threat analysis module, a harmful gas threat analysis module, a ventilation processing module, and a dust threat analysis and processing module; The flammable gas threat analysis module is used to analyze the combustion hazard coefficient of each flammable gas in the tunnel construction area of ​​the expressway; The harmful gas threat analysis module is used to obtain the age and medical history of each worker in the tunnel construction area of ​​the expressway during the current working period, and analyze the employee harm coefficient of each harmful gas in the tunnel construction area of ​​the expressway; The ventilation processing module is used to evaluate the working power of the tunnel ventilator in the tunnel construction area of ​​the expressway; The dust threat analysis and processing module is used to obtain the humidity and the content of harmful dust at each measurement feature point in the tunnel construction area of ​​the expressway after using a tunnel ventilator in the tunnel construction area of ​​the expressway, and obtain the model of each vehicle on the expressway within the target monitoring time period, to determine whether dust hazards occur in the tunnel construction area of ​​the expressway, and if so, to calculate the humidity increase value of the tunnel construction area of ​​the expressway.

3. A highway construction safety risk assessment system according to claim 2, characterized in that: Analyze the combustion hazard coefficient of various flammable gases in the tunnel construction area of ​​the expressway. The specific analysis method is as follows: Obtain the combustion content threshold of each flammable gas from the local database, and extract the combustion content threshold of each flammable gas in the tunnel construction area of ​​the expressway during the current working time period based on the flammable gases in the tunnel construction area of ​​the expressway during the current working time period. , where x represents the number of each flammable gas, , y is a positive integer greater than 2; According to the content of various flammable gases in the tunnel construction area of ​​the expressway during the current working period , analyze the combustion hazard coefficient of various flammable gases in the tunnel construction area of ​​the expressway , where e is represented by a natural constant.

4. A highway construction safety risk assessment system according to claim 2, characterized in that: The specific analysis method for analyzing the employee harm coefficient of each harmful gas in the tunnel construction area of ​​the expressway is as follows: The upper limit values ​​of the age-allowed content of each harmful gas in each age range are obtained from the local database, and the upper limit values ​​of the age-allowed content of each harmful gas of each worker in the tunnel construction area of ​​the expressway are mapped according to the age of each worker in the tunnel construction area of ​​the expressway during the current working period; The upper limit value of the medical history allowable content of each harmful gas in each past medical history is obtained from the local database, and the upper limit value of the medical history allowable content of each harmful gas in each past medical history of each staff member in the tunnel construction area of ​​the expressway during the current working period is mapped, and the maximum upper limit value of the medical history allowable content of each harmful gas in each staff member in the tunnel construction area of ​​the expressway is extracted; Analyze the maximum suitable upper limit of each harmful gas content in the tunnel construction area of ​​the expressway , where n represents the number of each harmful gas, , m is a positive integer greater than 2; According to the content of harmful gases in the tunnel construction area of ​​the expressway during the current working period , analyze the employee harm coefficient of various harmful gases in the tunnel construction area of ​​the expressway .

5. A highway construction safety risk assessment system according to claim 2, characterized in that: The specific evaluation method for evaluating the working power of the tunnel ventilator in the tunnel construction area of ​​the expressway is as follows: Obtain the distance between the tunnel ventilator and the nearest tunnel entrance from the local database; The exhaust flammable gas working efficiency of the tunnel ventilator in each distance interval and each combustion hazard coefficient interval is obtained from the local database, and the exhaust flammable gas working efficiency of the tunnel ventilator for each flammable gas in the tunnel construction area of ​​the expressway is mapped according to the combustion hazard coefficient of each flammable gas in the tunnel construction area of ​​the expressway, and the maximum exhaust flammable gas working efficiency of the tunnel ventilator in the tunnel construction area of ​​the expressway is extracted; According to the employee harm coefficient of each harmful gas in the tunnel construction area of ​​the expressway, the maximum exhaust efficiency of the harmful gas from the tunnel ventilator in the tunnel construction area of ​​the expressway is obtained in the same way; The maximum flammable gas exhaust efficiency and the maximum harmful gas exhaust efficiency of the tunnel ventilator in the tunnel construction area of ​​the expressway are compared, and the larger one is used as the working power of the tunnel ventilator in the tunnel construction area of ​​the expressway.

6. A highway construction safety risk assessment system according to claim 2, characterized in that: The specific method for judging whether dust hazards occur in the tunnel construction area of ​​the expressway is as follows: The upper limit content value of each harmful dust in each humidity range is obtained from the local database. According to the humidity of each measurement feature point in the tunnel construction area of ​​the expressway, the upper limit content value of each harmful dust at each measurement feature point in the tunnel construction area of ​​the expressway is mapped. , where i represents the number of each measurement feature point, , j is a positive integer greater than 2, t represents the number of each harmful dust, , s is a positive integer greater than 2; According to the harmful dust content of each measurement feature point in the tunnel construction area of ​​the expressway , calculate the hazard coefficient of each harmful dust at each measurement feature point in the tunnel construction area of ​​the expressway , and calculate the comprehensive dust hazard coefficient of the tunnel construction area of ​​the expressway based on the types of vehicles on the expressway during the target monitoring period; A dust comprehensive hazard coefficient threshold is obtained from a local database. If the dust comprehensive hazard coefficient of the tunnel construction area of ​​the expressway is greater than the dust comprehensive hazard coefficient threshold, it is determined that dust hazard occurs in the tunnel construction area of ​​the expressway.

7. A highway construction safety risk assessment system according to claim 6, characterized in that: The specific calculation method for calculating the comprehensive dust hazard coefficient in the tunnel construction area of ​​the expressway is: Obtain the upper limit of the permissible speed of each lane in the tunnel construction area of ​​the expressway from the local database, and extract the maximum upper limit of the permissible speed of the lane in the tunnel construction area of ​​the expressway; According to the humidity of each measuring characteristic point and the content of each harmful dust in the tunnel construction area of ​​the expressway, the average humidity and the average content of each harmful dust in the tunnel construction area of ​​the expressway are calculated; Obtain the friction hazard coefficient between each vehicle type and each harmful dust under the maximum allowable speed limit and each average content range from the local database, and map the friction hazard coefficient between each vehicle and each harmful dust during the target monitoring period of the expressway according to the vehicle type of each vehicle during the target monitoring period of the expressway, and extract the maximum friction hazard coefficient between each harmful dust and the vehicle during the target monitoring period of the expressway; The hazard coefficient adjustment parameter values ​​of each harmful dust in each average humidity range and each maximum friction hazard coefficient range are obtained from the local database, and the hazard coefficient adjustment parameter values ​​of each harmful dust in the tunnel construction area of ​​the expressway are mapped. , calculate the comprehensive dust hazard coefficient of the tunnel construction area of ​​the expressway .

8. A highway construction safety risk assessment system according to claim 2, characterized in that: The tunnel water inrush safety processing unit comprises: a tunnel water inrush threat analysis module and a tunnel water inrush processing module; The tunnel water inrush threat analysis module is used to obtain various water inrush prevention areas in the tunnel construction area of ​​the expressway, and reinforce the various water inrush prevention areas in the tunnel construction area of ​​the expressway through steel arch frames, obtain the real-time surface humidity of each contact area between each water inrush prevention area and the steel arch frames in the tunnel construction area of ​​the expressway through an intelligent car, and obtain each real-time appearance image of each steel arch frame in each water inrush prevention area in the tunnel construction area of ​​the expressway, and analyze the deterioration hazard coefficient of each water inrush prevention area in the tunnel construction area of ​​the expressway; The tunnel water inrush processing module is used to screen various deteriorated water inrush areas in the tunnel construction area of ​​the expressway and send them to the person in charge of the tunnel construction.

9. A highway construction safety risk assessment system according to claim 8, characterized in that: The specific analysis method for analyzing the deterioration hazard coefficient of each water inrush prevention area in the tunnel construction area of ​​the expressway is as follows: According to the real-time appearance images of each steel arch frame in each water inrush prevention area of ​​the tunnel construction area of ​​the expressway, the deformation threat coefficient of the steel arch frame in each water inrush prevention area of ​​the tunnel construction area of ​​the expressway is analyzed. , where N represents each water inrush prevention area, , M is a positive integer greater than 2; Obtain the initial surface humidity of each water inrush prevention area and each contact area of ​​the steel arch frame in the tunnel construction area of ​​the expressway from the local database , where E represents the contact area, , F is a positive integer greater than 2; Based on the real-time surface humidity of each water inrush prevention area and each contact area of ​​the steel arch frame in the tunnel construction area of ​​the expressway According to the humidity increase value C of the tunnel construction area of ​​the expressway, the humidity deterioration coefficient of each flood inrush prevention area of ​​the tunnel construction area of ​​the expressway is calculated. ; Analyze the deterioration hazard coefficient of each flood prevention area in the tunnel construction area of ​​the expressway .

10. A highway construction safety risk assessment system according to claim 9, characterized in that: The specific analysis method for analyzing the steel arch deformation threat coefficient of each water inrush prevention area in the tunnel construction area of ​​the expressway is as follows: Acquire the initial installation appearance images of each steel arch frame in each water inrush prevention area of ​​the tunnel construction area of ​​the expressway from the local database; The real-time appearance images of each steel arch frame in each water inrush prevention area of ​​the tunnel construction area of ​​the expressway are compared with the initial installation appearance image to obtain the similarity between the real-time appearance images of each steel arch frame in each water inrush prevention area of ​​the tunnel construction area of ​​the expressway and the initial installation appearance image. , where T represents the number of each steel arch frame, , S is a positive integer greater than 2, P represents the number of each real-time appearance image, , Q is a positive integer greater than 2; Obtain the appropriate image similarity L from the local database and analyze the steel arch deformation threat coefficient of each water inrush prevention area in the tunnel construction area of ​​the highway .

Images