Tunnel steel ring reinforcing method and system based on tunnel hospital concept

Abstract

This invention discloses a tunnel steel ring reinforcement method and system based on the concept of a tunnel hospital, relating to the field of tunnel steel ring reinforcement technology. The tunnel steel ring reinforcement method based on the tunnel hospital concept includes the following steps: establishing a tunnel hospital; generating a production model of the steel ring structure based on data information of the tunnel structure to be reinforced, and simultaneously producing a secondary steel ring structure; assembling the secondary steel ring structure in the tunnel hospital, and testing the assembled steel ring structure through the tunnel hospital, simultaneously collecting corresponding installation test information; optimizing the production model of the steel ring structure using the acquired installation test information. The technical solution provided by this invention, through the establishment of a tunnel hospital, enables the optimization of the production model of the secondary steel ring structure, thereby forming a main steel ring structure that can be quickly installed directly inside the tunnel to be reinforced. The entire system structure and reinforcement scheme can effectively improve the actual installation efficiency of the steel ring structure.

Description

Technical Field

[0001] This invention relates to the field of tunnel steel ring reinforcement technology, and in particular to a tunnel steel ring reinforcement method and system based on the concept of a tunnel hospital. Background Technology

[0002] In recent years, the probability of subway power supply failures, subway signal system paralysis, subway tunnel convergence deformation, and voids in subway track beds has been increasing across the country. These problems can seriously affect the safety of subway operations.

[0003] In order to improve the operational safety of subways, the industry has adopted methods such as full-section scanning and deformation analysis before maintenance, structural simulation and steel ring design, innovative research and development of steel ring structures, and the use of intelligent equipment at maintenance sites to effectively maintain subway tunnels, which has ensured the safe operation of subways to a certain extent.

[0004] While the aforementioned technologies have ensured the safe operation of subways to a certain extent, the increasing operational time and age of subways mean that the areas requiring maintenance within subway tunnels will only expand. Furthermore, during actual assembly, various incompatibilities exist between the steel ring structure and the tunnel to be reinforced, frequently necessitating reprocessing and replacement of the steel ring structure. Therefore, improving the efficiency of subway tunnel maintenance and steel ring reinforcement to meet the increasingly demanding maintenance and reinforcement tasks of today's subway tunnels is an urgent issue that needs to be addressed. Summary of the Invention

[0005] The main objective of this invention is to propose a tunnel steel ring reinforcement method and system based on the concept of a tunnel hospital, aiming to solve the problem that frequent rework occurs during the assembly of steel ring structures in traditional tunnel maintenance, thus affecting the actual assembly efficiency.

[0006] To achieve the above objectives, the present invention proposes a tunnel steel ring reinforcement method and system based on the concept of a tunnel hospital, comprising:

[0007] Establish a tunnel hospital;

[0008] Based on the data information of the tunnel structure to be reinforced, a production model of the steel ring structure is generated, and the auxiliary steel ring structure is produced simultaneously.

[0009] The secondary steel ring structure was assembled in the tunnel hospital, and the steel ring assembly structure was tested through the tunnel hospital, while the corresponding installation and test information was collected simultaneously.

[0010] The production model of the steel ring structure was optimized using the installation and testing information obtained.

[0011] The main steel ring structure is produced according to the optimized steel ring structure production model, and the produced main steel ring structure is transported to the tunnel structure to be reinforced for installation.

[0012] In one embodiment, generating a production model of the steel ring structure based on the data information of the tunnel structure to be reinforced includes:

[0013] The tunnel structure to be reinforced is scanned to obtain the steel ring curvature characteristics of the tunnel structure to be reinforced;

[0014] Based on the curvature feature information obtained from the scan, production models of multiple steel ring structures are established.

[0015] In one embodiment, the assembly of the secondary steel ring structure in the tunnel hospital includes:

[0016] Obtain cross-sectional information of the tunnel structure to be reinforced;

[0017] Based on the obtained cross-sectional information, a typical cross-sectional model of the tunnel structure to be installed is generated.

[0018] In one embodiment, the construction of the tunnel hospital includes:

[0019] The tunnel structure to be reinforced is scanned to obtain the location information of the reinforcement mesh in the concrete layer of the tunnel structure to be reinforced;

[0020] Establish a simulated tunnel rock wall structure;

[0021] Based on the obtained reinforcement mesh location information, a corresponding reinforcement mesh structure is set on the inner side of the simulated tunnel rock wall structure.

[0022] In one embodiment, assembling the secondary steel ring structure in the tunnel hospital includes:

[0023] The sub-steel ring structure was assembled within a simulated tunnel rock wall structure using an assembly system.

[0024] Anchor bolts are driven into the simulated tunnel rock wall structure from the pre-drilled holes on the secondary steel ring structure, and one end of the anchor bolt is fixed.

[0025] The positional relationship information between anchor bolts and the reinforcing mesh structure is obtained, and the production model of the steel ring structure is optimized based on the obtained positional relationship information.

[0026] In one embodiment, after setting a corresponding reinforcing mesh structure inside the simulated tunnel rock wall structure based on the obtained reinforcing mesh location information, the method further includes:

[0027] Test and monitoring systems were installed within the simulated tunnel rock wall structure.

[0028] In one embodiment, testing the steel ring assembly structure through a tunnel hospital includes:

[0029] Obtain external environmental information of the tunnel structure to be reinforced;

[0030] The assembled secondary steel ring structure is tested by simulating the actual external environment through a testing system.

[0031] The monitoring system synchronously acquires real-time image information of each steel ring structure during the test, and outputs the corresponding real-time test data and the acquired real-time image information.

[0032] This invention also proposes a tunnel steel ring reinforcement system based on the concept of a tunnel hospital, applicable to the aforementioned tunnel steel ring reinforcement method based on the concept of a tunnel hospital. The tunnel steel ring reinforcement system based on the concept of a tunnel hospital includes:

[0033] The tunnel hospital includes a simulated tunnel rock wall structure, a testing system, and a monitoring system, wherein the testing system and the monitoring system are both installed on the simulated tunnel rock wall structure.

[0034] Assembly system, including assembling vehicle body components; and,

[0035] Main steel ring structure and secondary steel ring structure.

[0036] In one embodiment, the testing system includes a humidity control system, a temperature control system, and multiple pressure testing systems;

[0037] The temperature control system and the humidity control system are both fixedly installed on the simulated tunnel rock wall structure, and multiple pressure testing systems are also installed on the simulated tunnel rock wall structure, with their positions on the simulated tunnel rock wall structure being adjustable; and / or,

[0038] The monitoring system includes an image processing system and temperature and humidity monitoring elements installed within the simulated tunnel rock wall structure.

[0039] In one embodiment, the tunnel steel ring reinforcement system based on the tunnel hospital concept further includes a processing system, which includes a steel ring production device and a steel ring perforation device.

[0040] This application includes at least one of the following beneficial technical effects:

[0041] Firstly, when reinforcing tunnels with steel rings, especially existing subway tunnels, the reinforcement method described in this application, due to the establishment of a "tunnel hospital," allows staff to collect data at the tunnel to be reinforced before entering the subway tunnel for steel ring reinforcement during maintenance windows. After data collection, the main and auxiliary steel rings are custom-produced within the tunnel hospital. After production, the auxiliary steel rings are simulated and assembled within the tunnel hospital. After the simulation, the auxiliary steel rings are retested, and simulation data is collected. Based on the retest data after the simulation assembly of the auxiliary steel rings, the main steel rings undergo secondary processing within the tunnel hospital. After secondary processing, during maintenance windows, staff only need to transport the main steel rings to the subway tunnel to be reinforced for assembly. Compared to traditional steel ring reinforcement methods, this method significantly improves the efficiency of steel ring reinforcement, effectively meeting the increasingly heavy maintenance and reinforcement tasks of subway tunnels today.

[0042] Furthermore, this solution establishes an environmental simulation system within the tunnel hospital. During testing, this system organically combines the simulated environment, pressure testing system, and temperature and humidity control system. When reinforcing different sections of the tunnel to be reinforced, the pressure testing system adjusts the segment pressure of a typical tunnel section, while the temperature control mechanism regulates the temperature and humidity of the segments. This allows the data from multiple auxiliary steel ring structures to further match the data from the tunnel to be reinforced. Consequently, the installation of the auxiliary steel rings achieves an environment more closely resembling the actual conditions of the tunnel to be reinforced, resulting in installation data that better reflects the actual conditions of the tunnel.

[0043] The reinforcement system effectively realizes the application of the reinforcement method in this application, provides strong optimization support for the final production of the steel ring structure, and further improves the installation efficiency in the actual installation process of the steel ring. Attached Figure Description

[0044] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0045] Figure 1 A schematic diagram of a tunnel steel ring reinforcement system based on the concept of a tunnel hospital provided by the present invention;

[0046] Figure 2 For application Figure 1A detailed flowchart of an embodiment of a reinforcement method for a tunnel steel ring reinforcement system based on the concept of a tunnel hospital;

[0047] Figure 3 for Figure 2 A detailed flowchart of an embodiment of "generating a production model of a steel ring structure based on data information of the tunnel structure to be reinforced";

[0048] Figure 4 for Figure 2 A detailed flowchart of an embodiment prior to "assembling the auxiliary steel ring structure in the tunnel hospital";

[0049] Figure 5 for Figure 2 A schematic diagram illustrating the specific process of "establishing a tunnel hospital" in China;

[0050] Figure 6 for Figure 4 A schematic diagram illustrating the specific process of one embodiment of "assembling the auxiliary steel ring structure in a tunnel hospital";

[0051] Figure 7 for Figure 4 A detailed flowchart of an embodiment following "Setting a corresponding reinforcement mesh structure on the inner side of the simulated tunnel rock wall structure based on the obtained reinforcement mesh location information";

[0052] Figure 8 for Figure 7 A schematic diagram illustrating the specific process of an embodiment of "testing the steel ring assembly structure through a tunnel hospital".

[0053] Explanation of icon numbers:

[0054] 100. Tunnel steel ring reinforcement system based on the concept of a tunnel hospital; 1. Tunnel hospital; 11. Simulated tunnel rock wall structure; 12. Testing system; 121. Humidity control system; 122. Temperature control system; 123. Pressure testing system; 13. Monitoring system; 131. Image processing system; 132. Temperature and humidity monitoring elements; 2. Secondary steel ring structure; 3. Anchor bolt; 4. Track structure; 5. Reinforcing mesh structure.

[0055] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0056] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0057] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0058] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0059] In recent years, the probability of subway power supply failures, subway signal system paralysis, subway tunnel convergence deformation, and voids in subway track beds has been increasing across the country. These problems can seriously affect the safety of subway operations.

[0060] In order to improve the operational safety of subways, the industry has adopted methods such as full-section scanning and deformation analysis before maintenance, structural simulation and steel ring design, innovative research and development of steel ring structures, and the use of intelligent equipment at maintenance sites to effectively maintain subway tunnels, which has ensured the safe operation of subways to a certain extent.

[0061] While the aforementioned technologies have ensured the safe operation of subways to a certain extent, the increasing operational time and age of subways mean that the areas requiring maintenance within subway tunnels will only expand. Furthermore, during actual assembly, various incompatibilities exist between the steel ring structure and the tunnel to be reinforced, frequently necessitating reprocessing and replacement of the steel ring structure. Therefore, improving the efficiency of subway tunnel maintenance and the steel ring reinforcement based on the "tunnel hospital" concept to meet the increasingly demanding maintenance and reinforcement tasks of subway tunnels is an urgent issue that needs to be addressed.

[0062] This invention proposes a tunnel steel ring reinforcement method and system based on the concept of a tunnel hospital.

[0063] Please see Figure 2, Figure 3 and Figure 4 In one embodiment of the present invention, the tunnel steel ring reinforcement method based on the concept of a tunnel hospital specifically includes the following steps:

[0064] First, a tunnel hospital needs to be built;

[0065] A hospital is a place for diagnosing health problems, and Tunnel Hospital 1, as its name suggests, is a place for diagnosing related problems within the tunnel structure. This solution primarily addresses the practical installation issues of the tunnel steel ring structure based on the Tunnel Hospital concept within the tunnel. It aims to resolve the problem of interference between the anchor holes on the steel ring structure and the reinforcement mesh structure within the tunnel concrete layer when fixing anchor rods 3. Specifically, during the actual installation of the steel ring structure, when anchor rods 3 are driven into the tunnel concrete structure, interference may occur between them and the reinforcement mesh structure. This interference also affects the internal strength of the concrete layer, so it usually requires re-drilling holes in the steel ring. Re-drilling holes and then installing is extremely inefficient. By establishing Tunnel Hospital 1, during the steel ring production process, the actual anchor hole positions on the steel ring can be adjusted using the "diagnostic data" from Tunnel Hospital 1. This allows for direct installation of the steel ring structure during installation, thereby achieving efficient assembly of the steel ring structure within the tunnel.

[0066] The tunnel's inner wall has an arc-shaped structure, with steel ring structures attached and fixed to its inner concrete structure to form an arc-shaped support. It's conceivable that the curvature characteristics of the steel ring structure differ at different locations within the tunnel. Therefore, during the actual production of the steel ring structure, it's necessary to obtain the relevant curvature model parameters of the steel ring structure in the corresponding area based on the actual conditions of the tunnel to be reinforced. This ensures proper production of the steel ring structure and avoids dimensional deviations during assembly.

[0067] This means that based on the data information of the tunnel structure to be reinforced, a production model of the steel ring structure needs to be generated, and the secondary steel ring structure 2 needs to be produced simultaneously. Specifically, this includes the following steps:

[0068] First, the tunnel structure to be reinforced needs to be scanned to obtain the curvature characteristics of the steel ring in the tunnel structure to be reinforced. Then, the tunnel to be reinforced is scanned to obtain the actual curvature characteristics of the steel ring to be processed through the actual shape of the concrete layer inside the tunnel, so as to ensure that the steel ring structure and the inner wall of the tunnel to be reinforced can fit together accordingly, thereby achieving a better fixing and support effect.

[0069] Then, in the actual production process, multiple production models of the steel ring structure need to be established based on the curvature feature information obtained from the scanning. These production models include the generation of the processing data control structure model corresponding to the steel ring. By establishing these production models, the actual processing can be controlled in an orderly manner, thereby improving the forming quality of the steel ring structure.

[0070] However, the secondary steel ring structure 2 cannot be directly used for reinforcement in tunnels. This is because the reinforcement mesh structure within the concrete layer of a tunnel structure may deform or change position during grouting due to grout pressure. When the anchor holes on the steel ring structure are anchored, the anchor rods 3 driven into the concrete layer may interfere with the reinforcement mesh structure, thus affecting the efficiency of the steel ring reinforcement and consequently the overall support performance of the entire concrete layer.

[0071] Therefore, the produced auxiliary steel ring structure 2 needs to be "diagnosed" through the tunnel hospital 1 in order to optimize its overall support strength and the specific location of the anchor hole structure.

[0072] Specifically, the secondary steel ring structure 2 needs to be assembled in the tunnel hospital 1, and the steel ring assembly structure needs to be tested through the tunnel hospital 1, while simultaneously collecting the corresponding installation test information; multiple secondary steel ring structures 2 produced are assembled in the tunnel hospital 1 to simulate the actual installation process. During the simulated installation, the anchor hole position information on the corresponding secondary steel ring structure 2 is corrected, and the overall support strength of the multiple secondary steel ring structures 2 after they are fixed needs to be tested. The secondary steel ring structure 2 is tested through the tunnel hospital 1, and the relevant test information is retained simultaneously.

[0073] During subsequent production, the production model of the steel ring structure can be optimized using the obtained installation and testing information;

[0074] Then, the main steel ring structure is produced according to the optimized steel ring structure production model, and the produced main steel ring structure is transported to the tunnel structure to be reinforced for installation. As mentioned above, the production and testing process of the secondary steel ring structure 2 can optimize the initial production model of the steel ring, including the optimization of anchor hole positions, curvature structure, and material strength, etc. The main steel ring structure is produced using the optimized data model. During actual installation, the produced main steel ring structure can be directly spliced ​​and installed in the corresponding area, which greatly improves the installation efficiency and avoids the risk of interference between the anchor hole positions and the concrete reinforcement mesh structure.

[0075] The above includes a "Tunnel Hospital 1" structure for real-time correction of the actual production data model. This structure is built to correspond to existing tunnel structures and can simulate the actual configuration of the reinforcing mesh structure 5, the actual shape characteristics of the tunnel structure cross-section, and the actual stress conditions of the steel ring structure within the tunnel structure. By diagnosing the auxiliary steel ring structure 2 within the Tunnel Hospital 1, the actual production model can be optimized in advance, thereby solving the problem of low installation efficiency of the steel ring in the tunnel structure.

[0076] The "Tunnel Hospital 1" is the main testing and diagnostic structure. Built based on the actual conditions of a tunnel, it simulates the pressure exerted on the actual tunnel structure, as well as the actual ambient temperature and humidity. This ensures that the testing environment is as consistent as possible with the actual external environment of the tunnel structure, thereby guaranteeing the reliability of the test results.

[0077] To achieve the above objectives, specifically, in some embodiments, such as Figure 1 and Figure 5 As shown, the establishment of the tunnel hospital 1 includes the following specific steps:

[0078] The tunnel structure to be reinforced is scanned to obtain the location information of the reinforcing mesh in the concrete layer. As mentioned above, the steel ring structure is mainly installed on the arc-shaped inner wall of the concrete layer of the tunnel structure, serving a supporting and insulating function. However, the cross-sectional shape of different sections of the tunnel structure varies to some extent; for example, different degrees of curvature result in corresponding differences in the curvature of each steel ring structure. Therefore, it is necessary to establish a corresponding "Tunnel Hospital 1" structure based on the actual conditions of the tunnel section to be reinforced. This mainly involves scanning the concrete layer and simultaneously obtaining the actual location model of the reinforcing mesh at various locations within the concrete structure.

[0079] Then it is necessary to establish a simulated tunnel rock wall structure 11;

[0080] In other words, an external rock wall structure almost coaxial with the actual tunnel model is established on the outside of the actual 3D tunnel model obtained from the scan. The purpose of establishing the above-mentioned simulated tunnel rock wall structure 11 is to create a relatively closed actual test area. Within the test area, the simulated tunnel rock wall structure 11 provides the corresponding installation foundation for various monitoring and test structures, thereby achieving the above-mentioned environmental simulation effect.

[0081] Based on the obtained reinforcement mesh location information, a corresponding reinforcement mesh structure 5 is set inside the simulated tunnel rock wall structure 11.

[0082] Based on the scanned location information of the reinforcing mesh within the tunnel to be reinforced, a new reinforcing mesh structure 5 is simultaneously installed inside the simulated tunnel rock wall structure 11. The location information of the reinforcing mesh structure 5 within the simulated tunnel rock wall structure 11 corresponds to the actual situation of the tunnel to be reinforced. During the actual installation of the secondary steel ring, the specific location of the anchor holes in the production model can be optimized through the installation of the anchor bolts 3.

[0083] Furthermore, as mentioned above, the "tunnel hospital 1" can not only optimize the position of the anchor holes on the steel ring structure, but also simulate the actual environment for conducting a series of tests, such as strength tests, on the installed steel ring structure. Specifically, a corresponding testing system 12 and a monitoring system 13 need to be set up within the simulated tunnel rock wall structure 11. The testing system 12 simulates the actual environment for testing, and the monitoring system 13 synchronously transmits the test information back to ensure the real-time nature and synchronization of the test information.

[0084] Additionally, it should be noted that, considering the use of actual production materials and limitations of the testing site, the "Tunnel Hospital 1" can only simulate a tunnel structure with a certain extension length. As the tunnel structure extends, targeted adjustments need to be made to the aforementioned ribbed structure 5 and the testing system 12 based on the actual scanned data, so that the testing requirements of the entire tunnel structure can be met by using only the "Tunnel Hospital 1".

[0085] As described above, the simulated tunnel rock wall structure 11 is equipped with corresponding test structures that can simulate the actual external environment of the tunnel to be reinforced, thereby improving the reliability of the test results. In specific testing, in some embodiments, such as... Figure 1 , Figure 4 , Figure 6 and Figure 8 As shown, the testing of the steel ring assembly structure via Tunnel Hospital 1 includes the following specific operational steps:

[0086] Obtain external environmental information of the tunnel structure to be reinforced;

[0087] The external environmental information of the tunnel to be reinforced includes external humidity, external pressure, etc. This information can be obtained through corresponding monitoring devices, such as temperature and humidity sensors and pressure monitoring devices.

[0088] After the above information is obtained, the assembled secondary steel ring structure 2 can be tested by simulating the actual external environment through the test system 12. Specifically, as mentioned above, a relatively closed test environment is formed inside the simulated tunnel rock wall structure 11. The test simulation system includes relevant structural devices that can control temperature and humidity, as well as a pressure output device that can apply pressure to the assembled secondary steel ring structure 2.

[0089] It should be noted that, conventionally, the steel ring structure is fixedly connected to the concrete structure layer within the tunnel (primarily through anchor bolts 3). Considering the variability, convenience, and cost of the test, the reinforcing mesh structure 5 within the "tunnel hospital 1" is not poured. To ensure the effective installation and fixation of the secondary steel ring, one end of the anchor bolt 3 is attached to the simulated tunnel rock wall structure 11 during the actual installation of the secondary steel ring structure 2. A corresponding pressure testing structure is also installed on the simulated tunnel rock wall structure 11, with its output end corresponding to the secondary steel ring structure 2, capable of outputting the corresponding test pressure to simulate the actual external pressure. Temperature and humidity can be controlled through spray injection and corresponding temperature control devices, such as air conditioning systems, to regulate the temperature and humidity within the simulated tunnel rock wall structure 11. By setting up the above structures, the installation environment of the secondary steel ring can be made to correspond as closely as possible to the actual environment of the tunnel to be reinforced, thereby facilitating the output of referential optimization information during the testing process. Furthermore, in this application, to improve the efficiency of steel ring reinforcement, the focus is more on how to avoid the reinforcing bars and how to achieve a stable connection with the tunnel rock wall structure 11 after avoiding the reinforcing bars. Therefore, in this embodiment, the reinforcing mesh structure 5 is not cast in place, but rather the pressure on the rock wall structure 11 is adjusted to simulate the real rock wall structure 11, which is relatively easy for those skilled in the art to understand. It is conceivable that the actual external environment of each section of the tunnel to be reinforced will certainly be somewhat different. By conducting tests in the above manner, the output of the test specimen can be quickly adjusted according to the different characteristics of each section, thereby greatly improving the testing flexibility of the "tunnel hospital 1".

[0090] In actual testing, the pressure testing structure and the temperature and humidity control structure work together. The testing process is continuous and requires real-time acquisition and feedback of test information. Specifically, the monitoring system 13 needs to synchronously acquire real-time image information of each steel ring structure 2 during the testing process, and then match and output the real-time test data of the testing system 12 with the acquired real-time image information.

[0091] By combining the actual output data of the test output component with real-time image information of the inner wall structure of the steel ring formed by assembling the secondary steel ring structure 2, a quantitative analysis model is formed. For example, by gradually increasing the output pressure of the pressure test component, the image information is used to determine whether the secondary steel ring structure 2 deforms or whether there is leakage between the connected secondary steel ring structures 2. By mapping the real-time output parameters of the test output component with the image information of the secondary steel ring structure 2, the production parameters and design parameters in the production model can be optimized according to the actual information. Furthermore, through the above-mentioned environmental simulation and test component matching tests, the reliability of the test results can be effectively improved.

[0092] Additionally, it should be noted that the impact on the accuracy of the test results includes not only the aforementioned external environmental factors and the control of the test output components, but also the specific shape of the secondary steel ring structure 2. To ensure that the assembly shape of the secondary steel ring structure 2 corresponds to the tunnel to be reinforced, such as... Figure 1 and Figure 3 As shown, in some embodiments, and before assembling the secondary steel ring structure 2 in the tunnel hospital 1, the following steps are also included:

[0093] Obtain cross-sectional information of the tunnel structure to be reinforced;

[0094] The cross-sectional information of the tunnel to be reinforced can reflect the actual shape characteristics of the tunnel cross section. The cross-sectional information can be obtained through the scanning process during the production of the auxiliary steel ring, or by combining design information, construction information, and other relevant information.

[0095] Then, based on the obtained cross-sectional information, a typical cross-sectional model of the tunnel structure to be installed needs to be generated. The establishment of the typical cross-sectional model can provide an assembly reference for the assembly of the secondary steel ring structure 2. In the actual assembly of the secondary steel ring structure 2, multiple secondary steel rings are assembled in the "Tunnel Hospital 1" using the typical cross-sectional model as a reference, so that the cross-sectional shape of the assembled structure can correspond to the typical cross-sectional model.

[0096] Specifically, in some embodiments, assembling the secondary steel ring structure 2 in the tunnel hospital 1 includes:

[0097] The sub-steel ring structure 2 is assembled within the simulated tunnel rock wall structure 11 using an assembly system; during the assembly process, the installation positions of each sub-steel ring are adjusted using the aforementioned typical cross-sectional model.

[0098] During installation, anchor bolts are driven into the simulated tunnel rock wall structure 11 from the pre-drilled holes on the secondary steel ring structure 2, and one end of the anchor bolt is fixed. Specifically, the insertion end of the anchor bolt is fixed together with the simulated tunnel rock wall structure 11, thereby forming a steel ring structure by assembling multiple secondary steel ring structures 2 into a whole. In conventional structures, the tensile stress at the anchor bolt is relatively concentrated, so it is preferable to fix its end during testing to ensure that the stress on the secondary steel ring structure 2 corresponds as closely as possible to the actual stress scenario during testing.

[0099] Furthermore, during installation, it is necessary to simultaneously acquire the positional relationship information between the anchor bolts and the reinforcing mesh structure 5, and optimize the production model of the steel ring structure based on this information. For example, if interference occurs between the anchor bolts and the reinforcing mesh structure 5 when the anchor bolts are driven into the erected reinforcing mesh structure 5 through the openings on the secondary steel ring, the position of the openings on the secondary steel ring needs to be adjusted accordingly. This optimizes the anchor hole positions in the production model, allowing the optimized main steel ring to be installed directly without frequent interruptions to adjust the anchor hole positions during actual installation. In practical applications, the reinforcement method described in this solution can improve the efficiency of traditional steel ring reinforcement operations by more than half.

[0100] The present invention also includes a tunnel steel ring reinforcement system 100 based on the concept of a tunnel hospital. This system 100 is applicable to tunnel steel ring reinforcement methods based on the tunnel hospital concept. The specific details of the tunnel steel ring reinforcement method based on the tunnel hospital concept are as described in the above embodiments. The tunnel steel ring reinforcement system based on the tunnel hospital concept includes a tunnel hospital 1, an assembly system, a main steel ring structure, and a secondary steel ring structure 2. The tunnel hospital 1 includes a simulated tunnel rock wall structure 11, a testing system 12, and a monitoring system 13. Both the testing system 12 and the monitoring system 13 are installed on the simulated tunnel rock wall structure 11. The assembly system includes an assembled vehicle body component.

[0101] like Figure 1 As shown, and refer to together Figures 2 to 8The aforementioned system includes the main steel ring and the secondary steel ring structure 2. The secondary steel ring structure 2 is a preliminary structure, and its specific curvature is set according to the inner wall curvature of the tunnel section to be reinforced. After the secondary steel ring structure 2 is generated, it needs to be assembled in the simulated rock wall structure through the assembly system. During the assembly process, the installation posture of multiple secondary steel ring structures 2 needs to be adjusted according to the typical end face model of the tunnel to be reinforced to ensure that the assembled secondary steel ring structure 2 corresponds to the internal shape of the tunnel section to be reinforced. This provides a basic guarantee for the reliability of the test results. During the installation process, anchor rods 3 need to be inserted into the anchor holes on the secondary steel ring structure 2, and at the same time, the positional relationship between the anchor rods 3 and the reinforcing mesh structure 5 (which is correspondingly arranged by scanning the reinforcing mesh structure 5 of the tunnel to be reinforced) needs to be determined on the outside of the assembled secondary steel ring structure 2. If interference occurs, the optimized position of the anchor hole on the secondary steel ring structure 2 needs to be determined, and the optimized position information needs to be saved and output for optimizing the production model of the secondary steel ring.

[0102] The testing system 12 includes a humidity control system 121, a temperature control system 122, and multiple pressure testing systems 123. The temperature control system 122 and the humidity control system 121 are fixedly installed on the simulated tunnel rock wall structure 11, and the multiple pressure testing systems 123 are also installed on the simulated tunnel rock wall structure 11, with adjustable positions. Before testing, the output parameters of the testing system 12 need to be set according to the actual external environmental characteristics of the tunnel section to be reinforced. For example, the temperature and humidity within the entire simulated tunnel rock wall structure 11 are set to target values, and the ambient temperature and humidity within the simulated tunnel rock wall structure 11 are simultaneously monitored in real time by temperature and humidity monitoring elements 132 on the simulated tunnel rock wall structure 11. Then, the multiple pressure testing systems 123 are connected to multiple auxiliary steel ring structures 2, and the actual output pressure and pressure increment of the pressure testing systems 123 are simultaneously set. Furthermore, simultaneously, the monitoring system 13 needs to be set up before the actual test. The monitoring system 13 is specifically set as an image processing system 131. The image processing system 131 can be set inside the assembled sub-steel ring structure 2 to obtain the morphological changes of the sub-steel ring structure 2 during the test.

[0103] Before testing, the internal environment of the simulated tunnel rock wall structure 11 needs to be processed by the humidity control system 121 and the temperature control system 122. When the ambient temperature and humidity reach the set target values, the temperature and humidity inside the simulated tunnel rock wall structure 11 are maintained at the current state. Then, the pressure testing system 123 is controlled to output pressure, simultaneously applying pressure to multiple auxiliary steel ring structures 2 at set pressure increments. When the pressure testing system 123 reaches the set pressure value, it needs to maintain the pressure at the current level. The image processing system 131 synchronously acquires image information during the testing process and processes the relevant image information to obtain the deformation and position of the multiple auxiliary steel ring structures 2, and simultaneously obtains the bonding effect between adjacent auxiliary steel ring structures 2.

[0104] Furthermore, it should be noted that the actual position of the pressure testing system 123 in this embodiment is adjustable. Specifically, a corresponding track structure 4 is provided within the simulated tunnel rock wall structure 11. The track structure 4 has axial and circumferential travel within the simulated tunnel rock wall structure 11. One end of the pressure testing system 123 is movably mounted on the track structure 4, allowing for targeted adjustments to the force application point and direction during actual testing based on the actual structural characteristics of the assembled auxiliary steel ring structure 2. This further enhances the testing flexibility of the entire "tunnel hospital 1".

[0105] It is conceivable that the pressure testing system 123 mainly provides downward pressure for simulation testing, and its actual structure can be set as a hydraulic cylinder structure or an electric cylinder structure. The choice and setting can be made according to the actual situation of the production materials.

[0106] In some embodiments, such as Figure 3 As shown, the tunnel steel ring reinforcement system based on the tunnel hospital concept also includes a processing system, which comprises a steel ring production device and a steel ring piercing device. This processing system is independent of the "tunnel hospital 1" and is mainly used to produce the secondary steel ring structure 2 and the main steel ring structure according to an existing steel ring production model. Specifically, the steel ring structure is actually produced using the steel ring production device, and the produced steel ring structure is pierced using the steel ring piercing device to form the aforementioned anchor hole structure.

[0107] Economic benefit analysis of the steel ring reinforcement system and method of this application:

[0108] By using our reinforcement system and method for tunnel steel ring reinforcement, compared with related technologies, previously, regardless of the construction method or process used, only one ring could be spliced ​​in a single construction window. However, with our reinforcement system and method, 2.5 rings can be spliced ​​in one construction window. This not only ensures project quality but also accelerates the construction progress and saves a significant amount of time.

[0109] Most intuitively, through calculation, in the reinforcement work of 110 steel rings in an operating subway tunnel in a certain region of my country, if traditional construction methods are used, each steel ring reinforcement requires a maintenance window, with a labor cost of 400 yuan per person per shift, requiring 20 workers per shift, and a labor cost of 8,000 yuan per ring. Since the project has 113 rings, the total labor cost for assembling all rings would be 904,000 yuan. Using the same number of workers (in fact, the assembly method proposed in this application requires even fewer workers), the labor cost is only 361,600 yuan, saving a staggering 542,400 yuan. Furthermore, the main cost of the reinforcement system and method proposed in this application is the cost of assembling the auxiliary steel rings within the tunnel hospital. Within the tunnel hospital, due to the absence of maintenance window restrictions, the cost of assembling the auxiliary steel rings and the costs within the tunnel hospital are only 2,000 yuan per ring. In other words, the 113th ring only costs 226,000 yuan, and the final total cost saved is 316,400 yuan.

[0110] Social benefit analysis of the steel ring reinforcement system and method of this application:

[0111] In the reinforcement of 110 steel rings in a subway tunnel in a certain region of my country, the project was characterized by a long working front, numerous and long curved sections, a large volume of concrete pouring for the lining, short maintenance windows, difficulties in arranging construction machinery, long transportation distances, and significant interference from other maintenance work. The steel ring reinforcement system and method described in this application provided strong support for the timely completion and delivery of the entire project, and saved the subway operating company substantial costs.

[0112] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A method for reinforcing tunnels with steel rings based on the concept of a tunnel hospital, characterized in that, include: Establish a tunnel hospital; Based on the data information of the tunnel structure to be reinforced, a production model of the steel ring structure is generated, and the auxiliary steel ring structure is produced simultaneously. The construction of the tunnel hospital includes: The tunnel structure to be reinforced is scanned to obtain the location information of the reinforcement mesh in the concrete layer of the tunnel structure to be reinforced; Establish a simulated tunnel rock wall structure; Based on the obtained reinforcement mesh location information, a corresponding reinforcement mesh structure is set on the inner side of the simulated tunnel rock wall structure; The secondary steel ring structure will be assembled in the tunnel hospital, and the assembled steel ring structure will be tested through the tunnel hospital, with corresponding installation and test information collected simultaneously. The assembly of the secondary steel ring structure in the tunnel hospital includes: The sub-steel ring structure was assembled within a simulated tunnel rock wall structure using an assembly system. Anchor bolts are driven into the simulated tunnel rock wall structure from the pre-drilled holes on the secondary steel ring structure, and one end of the anchor bolt is fixed. Obtain the positional relationship information between anchor bolts and the reinforcing mesh structure, and optimize the production model of the steel ring structure based on the obtained positional relationship information; The production model of the steel ring structure was optimized using the installation and testing information obtained. The main steel ring structure is produced according to the optimized steel ring structure production model, and the produced main steel ring structure is transported to the tunnel structure to be reinforced for installation.

2. The tunnel steel ring reinforcement method based on the tunnel hospital concept as described in claim 1, characterized in that, The process of generating a production model for the steel ring structure based on the data information of the tunnel structure to be reinforced includes: The tunnel structure to be reinforced is scanned to obtain the steel ring curvature characteristics of the tunnel structure to be reinforced; Based on the curvature feature information obtained from the scan, production models of multiple steel ring structures are established.

3. The tunnel steel ring reinforcement method based on the tunnel hospital concept as described in claim 1, characterized in that, Before assembling the secondary steel ring structure in the tunnel hospital, the following steps are required: Obtain cross-sectional information of the tunnel structure to be reinforced; Based on the obtained cross-sectional information, a typical cross-sectional model of the tunnel structure to be installed is generated.

4. The tunnel steel ring reinforcement method based on the tunnel hospital concept as described in claim 1, characterized in that, Based on the obtained reinforcement mesh location information, after setting the corresponding reinforcement mesh structure inside the simulated tunnel rock wall structure, the following steps are also included: Test and monitoring systems were installed within the simulated tunnel rock wall structure.

5. The tunnel steel ring reinforcement method based on the tunnel hospital concept as described in claim 4, characterized in that, The steel ring assembly structure was tested through the tunnel hospital, including: Obtain external environmental information of the tunnel structure to be reinforced; The assembled secondary steel ring structure is tested by simulating the actual external environment through a testing system. The monitoring system synchronously acquires real-time image information of each steel ring structure during the test, and outputs the corresponding real-time test data and the acquired real-time image information.

6. A tunnel steel ring reinforcement system based on the concept of a tunnel hospital, applicable to the tunnel steel ring reinforcement method based on the concept of a tunnel hospital as described in any one of claims 1-5, characterized in that, The tunnel steel ring reinforcement system based on the tunnel hospital concept includes: The tunnel hospital includes a simulated tunnel rock wall structure, a testing system, and a monitoring system, wherein the testing system and the monitoring system are both installed on the simulated tunnel rock wall structure. Assembly system, including assembling vehicle body components; and, Main steel ring structure and secondary steel ring structure.

7. The tunnel steel ring reinforcement system based on the tunnel hospital concept as described in claim 6, characterized in that, The testing system includes a humidity control system, a temperature control system, and multiple pressure testing systems; The temperature control system and the humidity control system are both fixedly installed on the simulated tunnel rock wall structure, and multiple pressure testing systems are also installed on the simulated tunnel rock wall structure, with their positions on the simulated tunnel rock wall structure being adjustable; and / or, The monitoring system includes an image processing system and temperature and humidity monitoring elements installed within the simulated tunnel rock wall structure.

8. The tunnel steel ring reinforcement system based on the tunnel hospital concept as described in claim 6, characterized in that, The tunnel steel ring reinforcement system based on the concept of a tunnel hospital also includes a processing system, which includes a steel ring production device and a steel ring perforation device.

Images