Submarine tunnel vertical jacking construction mechanical response monitoring system and prediction method

Abstract

The invention discloses a subsea tunnel vertical jacking construction mechanical response monitoring system and a prediction method. The monitoring system comprises a signal acquisition module, a signal transmission and storage module, a data analysis module, a construction early warning module and a construction prediction module. Wherein the signal acquisition module is used for acquiring mechanical response parameter data in real time, then storing the data and transmitting the data to the data analysis module for analysis, judging whether the data meets standards or not and triggering early warning, and finally, the construction prediction module is used for establishing a prediction model; the monitoring and predicting method comprises the steps of jacking counter-force monitoring, lining segment internal force monitoring, lining segment displacement monitoring, joint displacement monitoring and vertical jacking construction mechanical response prediction. Mechanical response parameters during construction are monitored in real time, whether the mechanical response parameters meet control standards or not is judged, and a prediction model is established on the basis of measured data, so that vertical jacking construction of the subsea tunnel is better monitored and guided.

Description

Technical Field

[0001] The present invention belongs to the technical field of underground tunnel engineering, and relates to a monitoring system and a prediction method for mechanical response of vertical jacking construction of a submarine tunnel. Background Art

[0002] Drainage tunnels are crucial supporting structures for large nuclear power plants in coastal areas. Their drainage header structures typically consist of a horizontal shield tunnel and multiple vertical pipe jacking systems. The vertical jacking method is widely used in pipe jacking construction of drainage tunnel header structures due to its advantages of short construction times, minimal environmental impact, and high economic benefits.

[0003] During the vertical jacking construction of submarine pipe jacking, the jacking equipment provides a vertical upward lifting force to the pipe segments through repeated loading and unloading. This is equivalent to a vertical downward lifting reaction force acting on the jacking equipment and transmitted to the horizontal tunnel lining structure. Due to the large magnitude of the lifting reaction force during vertical jacking, the horizontal tunnel lining segments and joints are likely to experience significant mechanical response issues such as large internal forces, segment deformation, joint opening and closing, and misalignment during load bearing. This not only threatens the safety of the horizontal tunnel structure but also may cause seawater and sediment to flow into the tunnel through the joints, resulting in personal injury and the abandonment of the water diversion project. These high-risk and serious construction quality issues require high-standard real-time monitoring of the mechanical response of the horizontal tunnel lining segments and joints throughout the submarine pipe jacking construction process. Based on theoretical derivation or monitoring data, an effective prediction method for the mechanical response of submarine tunnel vertical jacking construction should be developed to provide guidance for similar construction projects. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention proposes a mechanical response monitoring system and prediction method for the vertical jacking construction of an undersea tunnel. The system is suitable for monitoring and predicting the mechanical response of the horizontal tunnel lining structure of the drainage head structure of the undersea drainage tunnel during the vertical jacking construction of the jacking pipe. It is conducive to realizing real-time monitoring of the vertical jacking construction process of the jacking pipe, improving the level of construction informatization and safety and reliability, and can realize the prediction of the mechanical response of the horizontal tunnel lining structure based on the monitoring results.

[0005] In a first aspect, the present application discloses a monitoring system for the mechanical response of vertical jacking construction in an undersea tunnel, the system comprising a signal acquisition module, a signal transmission and storage module, a data analysis module, a construction early warning module, and a construction prediction module;

[0006] The signal acquisition module includes a jacking reaction force sensor, a steel bar strain sensor, a lining displacement sensor, and a joint displacement sensor; wherein the jacking reaction force sensor is arranged in the jacking device to obtain jacking reaction force data acting on the horizontal tunnel lining; the steel bar strain sensor is buried in the inner and outer steel bar surfaces during the reinforced concrete construction of the horizontal tunnel lining to obtain steel bar strain data; the lining displacement sensor is arranged on the inner surface of the lining to obtain lining displacement data; the joint displacement sensor is arranged at the lining joint to obtain joint displacement data;

[0007] The signal transmission and storage module includes a signal transmission device and a signal storage device; wherein the signal transmission device is used to establish a data connection and transmission between the signal acquisition module and the signal storage device and the data analysis module; the signal storage device is used to store the jacking reaction force and tunnel lining mechanical response data acquired by the signal acquisition module, as well as the control standard of the tunnel lining mechanical response data;

[0008] The data analysis module includes a data preprocessing unit and a data analysis unit; wherein the data preprocessing unit is used to preprocess the raw data acquired by the signal acquisition module, thereby reducing data noise and standardizing the data; the data analysis unit is used to calculate and analyze the data, and determine in real time whether the technical parameters of the mechanical response of the vertical jacking construction of the submarine pipe jacking are within the control range;

[0009] The construction warning module is used to trigger an early warning according to the judgment result of the data analysis unit;

[0010] The construction prediction module is used to establish a model of how the mechanical response parameters of the horizontal tunnel lining change with the jacking reaction force based on the data processed by the data preprocessing unit, so as to realize the prediction of the mechanical response of the horizontal tunnel lining structure.

[0011] In a second aspect, the present application discloses a method for monitoring and predicting the mechanical response of vertical jacking construction in a submarine tunnel. The method comprises:

[0012] S100, jacking reaction force monitoring: During the vertical jacking construction of the submarine tunnel, the jacking reaction force F acting on the horizontal tunnel lining by the jacking reaction force sensor arranged in the jacking device is obtained. p Data: Lifting reaction force F t It is numerically equal to the sum of the jacking forces of all jacks of the jacking device, as shown in the following formula:

[0013] F p =∑F jn

[0014] Among them, F jnis the jacking force of the nth jack;

[0015] S200, lining segment internal force monitoring: During the vertical jacking construction of the submarine tunnel, the strain of the inner and outer steel bars is obtained by the steel bar strain sensors arranged on the surface of the inner and outer steel bars of the lining, and then the axial force N at the monitoring section where the steel bar strain sensor is located is calculated. n and bending moment M n The value satisfies the following expression:

[0016]

[0017] Among them, ε 1n is the strain of the inner reinforcement at the nth monitoring section, ε 2n is the strain of the outer reinforcement at the nth monitoring section, E is the elastic modulus of the lining segment, A n is the area of ​​the nth monitoring section, h0 is the distance between the inner and outer steel bar centroids, I n is the moment of inertia at the nth monitoring section;

[0018] Draw the N at the nth monitoring section according to the section geometry parameters, material characteristic parameters and reinforcement conditions u -M u Correlation curve can be obtained by calculating (N n ,M n ) is in N u -M u The data analysis unit determines whether the eccentric compressive bearing capacity of the horizontal tunnel lining meets the requirements within the relevant curve range; when the data analysis unit determines after analysis that the eccentric compressive bearing capacity of the horizontal tunnel lining does not meet the requirements, the construction early warning module issues an early warning;

[0019] S300, lining segment displacement monitoring: During the vertical jacking construction of the submarine tunnel, the lining segment displacement X1 is obtained by the lining displacement sensor arranged on the inner surface of the lining segment, including the lining clearance convergence X1. c and the vertical displacement of the dome X h , and satisfy the following expression:

[0020]

[0021] Among them, [X c ] is the lining clearance convergence limit, [X h ] is the vertical displacement limit of the arch; when the data analysis unit determines that the lining clearance convergence X c Or the vertical displacement of the dome X h When the requirements are not met, an early warning is issued through the construction early warning module;

[0022] S400, joint displacement monitoring: During the vertical jacking construction of the submarine tunnel, the joint displacement sensor is arranged at the lining joint to obtain the joint displacement X2, including the joint opening amount X2. o and joint misalignment X f , and satisfy the following expression:

[0023]

[0024] Among them, [X o ] is the limit of seam opening, [X f ] is the limit of the seam misalignment; when the data analysis unit determines the seam opening amount X after analysis o Or seam misalignment X f When the requirements are not met, an early warning is issued through the construction early warning module;

[0025] S500, prediction of mechanical response of vertical jacking construction: Based on the data processed by the data preprocessing unit, a model is established to show how the mechanical response parameters of the horizontal tunnel lining change with the jacking reaction force. The model adopts a linear model, as shown in the following expression:

[0026] Y m =k m ·F p +b m

[0027] Among them, Y m is the mth mechanical response parameter, and the mechanical response parameter includes the axial force N at the monitoring section involved in steps S100 to S400 n , bending moment M n , lining clearance convergence X c , vertical displacement X h , horizontal displacement X v , seam opening X o and joint misalignment X f ;k m and b m All are adjustment factors;

[0028] The k m and b m Value, thus obtaining the mth mechanical response parameter Y m Reaction force F with lifting p The functional relationship that changes with the change of the horizontal tunnel lining structure is used to predict the mechanical response of the horizontal tunnel lining structure.

[0029] Compared with the prior art, the beneficial effects of the present invention are: for the mechanical response of the horizontal tunnel lining structure of the drainage head structure of the submarine drainage tunnel during the vertical jacking construction of the jacking pipe, a submarine tunnel vertical jacking construction mechanical response monitoring system and prediction method are disclosed, the monitoring system includes a signal acquisition module, a signal transmission and storage module, a data analysis module, a construction early warning module and a construction prediction module; wherein, the signal acquisition module is used to obtain the mechanical response parameter data of the horizontal tunnel lining structure during the vertical jacking construction in real time, and then the data is stored and transmitted to the data analysis module through the signal transmission and storage module, and then the data analysis module analyzes and determines whether the mechanical response parameters such as the internal force of the pipe segment, the deformation of the pipe segment, the opening and closing amount of the joint and the misalignment during the vertical jacking construction of the submarine tunnel meet the requirements, and then decides whether the warning is triggered by the construction early warning module, and finally the construction prediction module determines whether the mechanical response parameters such as the internal force of the pipe segment, the deformation of the pipe segment, the opening and closing amount of the joint and the misalignment meet the requirements. The prediction module establishes a prediction model based on the monitoring data to provide reference and guidance for subsequent construction. In addition, the present invention also discloses a prediction method for the monitoring system of the mechanical response of the vertical jacking construction of the submarine tunnel, which includes jacking reaction force monitoring, lining segment internal force monitoring, lining segment displacement monitoring, joint displacement monitoring and vertical jacking construction mechanical response prediction. The method is applicable to the monitoring system of the mechanical response of the vertical jacking construction of the submarine tunnel. By real-time monitoring of the strain of the inner and outer steel bars of the horizontal tunnel lining, the displacement of the lining segment and the displacement of the joint during the vertical jacking construction process, it analyzes and judges whether the internal force of the lining segment, the convergence of the lining clearance, the vertical displacement of the arch, the joint opening and the joint misalignment meet the control standards, and on this basis establishes a functional relationship in which the mechanical response parameters change with the jacking reaction force, thereby realizing the prediction of the mechanical response of the vertical jacking construction of the horizontal tunnel lining structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a flow chart of a prediction method for a monitoring system for mechanical response of vertical jacking construction of a submarine tunnel according to the present invention;

[0031] Figure 2 This is a connection diagram of the mechanical response monitoring system for vertical jacking construction of a submarine tunnel according to the present invention;

[0032] Figure 3 This is a structural diagram of the vertical jacking construction of a submarine tunnel according to the present invention;

[0033] Figure 4 The embodiment of the present invention is about the axial force and bending moment value of the lining section and N u -M u Relationship diagram of correlation curve;

[0034] Figure 5 A diagram showing the relationship between the axial force of a typical cross section and the jacking reaction force according to an embodiment of the present invention;

[0035] Figure 6 A diagram showing the relationship between the bending moment of a typical section and the jacking reaction force according to an embodiment of the present invention;

[0036] Figure 7 This is a diagram showing the relationship between the displacement of a typical lining segment and the change of the jacking reaction force according to an embodiment of the present invention;

[0037] Figure 8 A diagram showing the relationship between typical joint displacement and jacking reaction force according to an embodiment of the present invention;

[0038] Figure numerals: 1-signal acquisition module, 11-jacking reaction force sensor, 12-steel strain sensor, 14-lining displacement sensor, 15-joint displacement sensor, 2-signal transmission and storage module, 21-signal transmission equipment, 22-signal storage equipment, 3-data analysis module, 31-data preprocessing unit, 32-data analysis unit, 4-construction early warning module, 5-construction prediction module, 6-horizontal tunnel lining structure, 61-lining segment, 62-lining joint, 7-jacking device, 71-jacking device bracket, 72-jack, 73-jacking device base, 8-jacking pipe. DETAILED DESCRIPTION

[0039] The following is a more detailed description of the embodiments of the present invention with reference to the accompanying drawings and reference numerals, so that those skilled in the art can implement the invention after studying this specification. It should be understood that the specific embodiments described herein are only used to illustrate the invention and are not intended to limit the invention.

[0040] This embodiment is based on the integrated design and construction project for the drainage tunnels of Units 3 and 4 at the Zhangzhou Nuclear Power Plant. This project utilizes a "shield tunneling starting pit + drill-and-blast tunnel + shield tunnel + drainage header" drainage scheme. The drainage header structure consists of a horizontal tunnel 7 and ten vertical reinforced concrete jacking pipes 5. The jacking reaction force during vertical jacking construction is transmitted to the horizontal tunnel lining structure 6 via the jacking device base 73.

[0041] The first aspect of the present invention provides Figure 2-3 The mechanical response monitoring system for vertical jacking construction of an undersea tunnel shown in the figure includes a signal acquisition module 1, a signal transmission and storage module 2, a data analysis module 3, a construction early warning module 4 and a construction prediction module 5;

[0042] The signal acquisition module 1 includes a jacking reaction force sensor 11, a steel bar strain sensor 12, a lining displacement sensor 14, and a joint displacement sensor 15; wherein the jacking reaction force sensor 11 is arranged in the jacking device 7, and is used to obtain the jacking reaction force data acting on the horizontal tunnel lining structure 6; the steel bar strain sensor 12 is buried in the inner and outer steel bar surfaces during the reinforced concrete construction of the horizontal tunnel lining, and is used to obtain steel bar strain data; the lining displacement sensor 14 is arranged on the inner surface of the lining, and is used to obtain lining displacement data; the joint displacement sensor 15 is arranged at the lining joint, and is used to obtain joint displacement data;

[0043] The signal transmission and storage module 2 includes a signal transmission device 21 and a signal storage device 22; wherein the signal transmission device 21 is used to establish a data connection and transmission between the signal acquisition module 1 and the signal storage device 22 and the data analysis module 3; the signal storage device 22 is used to store the jacking reaction force and tunnel lining mechanical response data obtained by the signal acquisition module 1, as well as the control standard of the tunnel lining mechanical response data;

[0044] The data analysis module 3 includes a data preprocessing unit 31 and a data analysis unit 32; wherein the data preprocessing unit 31 is used to preprocess the raw data acquired by the signal acquisition module 1, thereby reducing data noise and standardizing the data; the data analysis unit 32 is used to calculate and analyze the data, and determine in real time whether the technical parameters of the mechanical response of the vertical jacking construction of the submarine pipe jacking are within the control range;

[0045] The construction warning module 4 is used to trigger a warning according to the judgment result of the data analysis unit;

[0046] The construction prediction module 5 is used to establish a model of how the mechanical response parameters of the horizontal tunnel lining change with the jacking reaction force based on the data processed by the data preprocessing unit 31, so as to realize the prediction of the mechanical response of the horizontal tunnel lining structure.

[0047] A second aspect of the present invention provides Figure 1-8 The prediction method of the mechanical response monitoring system of the vertical jacking construction of the submarine tunnel shown includes the following steps:

[0048] S100, jacking reaction force monitoring: During the vertical jacking construction of the submarine tunnel, the jacking reaction force F acting on the horizontal tunnel lining by the jacking device 7 is obtained by the jacking reaction force sensor 11 arranged in the jacking device. p Data: Lifting reaction force F p The numerical value is equal to the sum of the jacking forces of all the jacks 72 of the jacking device. In the specific implementation, 8 jacks 72 with the same jacking force are used. Then the jacking reaction force F pSatisfies the following expression:

[0049] F p =ΣF jn =8F j (1)

[0050] Among them, F jn is the jacking force of the nth jack;

[0051] In specific implementation, the lifting reaction force F p It changes with the lifting distance, as shown in Table 1:

[0052] Table 1. Relationship between jacking reaction force and mechanical response parameters of horizontal tunnel lining as a function of jacking height

[0053]

[0054] S200, lining segment internal force monitoring: During the vertical jacking construction of the submarine tunnel, the strain of the inner and outer steel bars is obtained by the steel bar strain sensors 12 arranged on the surface of the inner and outer steel bars of the lining, and then the axial force N at the monitoring section where the steel bar strain sensor 12 is located is calculated. n and bending moment M n The value satisfies the following expression:

[0055]

[0056] Among them, ε 1n is the strain of the inner reinforcement at the nth monitoring section, ε 2n is the strain of the outer reinforcement at the nth monitoring section, E is the elastic modulus of the lining segment, A n is the area of ​​the nth monitoring section, h0 is the distance between the inner and outer steel bar centroids, I n is the moment of inertia at the nth monitoring section;

[0057] In the specific implementation, when the jacking height is 2 sections, ε is measured at the typical section. 1n 0.0298%, ε 2n The elastic modulus E of the lining segment is 32.5 GPa, and the area A at the monitoring section is n 0.4m 2 , the moment of inertia I at the monitoring section n 0.0053m 4 , the distance h0 between the inner and outer steel bar centroids is 0.3m, then the axial force N is calculated according to formula (2): n is 1660.0kN, bending moment M n 406.1 kN·m;

[0058] Draw the N at the nth monitoring section according to the section geometry parameters, material characteristic parameters and reinforcement conditions u -M u Correlation curve can be obtained by calculating (N n ,M n ) is in N u -M u The relevant curve range is used to judge whether the eccentric compressive bearing capacity of the horizontal tunnel lining meets the requirements, such as Figure 4 As shown; the data analysis unit 32 determines after analysis that the eccentric compressive bearing capacity of the positive section meets the requirements, and there is no need to issue an early warning through the construction early warning module 4;

[0059] S300, lining segment displacement monitoring: During the vertical jacking construction of the submarine tunnel, the lining segment displacement X1 is obtained by the lining displacement sensor 14 arranged on the inner surface of the lining segment, including the lining clearance convergence X1. c and the vertical displacement of the dome X h In the specific implementation, when the jacking height is 2 sections, for the typical lining segment, the lining clearance convergence is X c and the vertical displacement of the dome X h Satisfies the following expression:

[0060]

[0061] Among them, [X c ] is the lining clearance convergence limit, [X h ] is the vertical displacement limit; the data analysis unit 32 determines the lining clearance convergence X after analysis c and vertical displacement X h All requirements are met, and there is no need to issue an early warning through the construction early warning module 4;

[0062] S400, joint displacement monitoring: During the vertical jacking construction of the submarine tunnel, the joint displacement sensor 15 is arranged at the lining joint to obtain the joint displacement X2, including the joint opening amount X2. o and joint misalignment X f In the specific implementation, when the jacking height is 2 sections, for a typical lining segment, the joint opening amount X o and joint misalignment X f Satisfies the following expression:

[0063]

[0064] Among them, [X o ] is the limit of seam opening, [X f ] is the limit of the seam misalignment; the data analysis unit 32 determines the seam opening amount X after analysis o and joint misalignment Xf If all requirements are met, there is no need to issue an early warning through the construction early warning module 4;

[0065] S500, prediction of mechanical response of vertical jacking construction: Based on the data processed by the data preprocessing unit 31, a model is established to show how the mechanical response parameters of the horizontal tunnel lining change with the jacking reaction force. The model adopts a linear model, as shown in the following expression:

[0066] Y m =k m ·F p +b m (6)

[0067] Among them, Y m is the mth mechanical response parameter, and the mechanical response parameter includes the axial force N at the monitoring section involved in steps S100 to S400 n , bending moment M n , lining clearance convergence X c , vertical displacement X h , horizontal displacement X v , seam opening X o and joint misalignment X f ;k m and b m All are adjustment factors;

[0068] The k m and b m Value, thus obtaining the mth mechanical response parameter Y m Reaction force F with lifting p The functional relationship that changes with the change of the horizontal tunnel lining structure is used to predict the mechanical response of the horizontal tunnel lining structure;

[0069] In specific implementation, the typical cross-section axial force N n Reaction force F with lifting p The relationship fitting diagram of the change is as follows Figure 5 As shown, the corresponding prediction model is shown in the following expression:

[0070] N n =0.0944F p +579.41 (7)

[0071] The correlation coefficient R corresponding to the prediction model 2 It is 0.9014, which means that the fitting degree of the prediction model is good;

[0072] Typical section bending moment M n Reaction force F with lifting p The relationship fitting diagram of the change is as follows Figure 6As shown, the corresponding prediction model is shown in the following expression:

[0073] M n =0.02F p +121.61 (8)

[0074] The correlation coefficient R corresponding to the prediction model 2 It is 0.932, which means that the fitting degree of the prediction model is good;

[0075] Typical lining segment displacement X1 with jacking reaction force F p The relationship fitting diagram of the change is as follows Figure 7 As shown, the corresponding prediction model is shown in the following expression:

[0076]

[0077] The correlation coefficient R corresponding to the prediction model 2 They are 0.9673 and 0.9739 respectively, which means that the fitting degree of the prediction model is good;

[0078] Typical joint displacement X2 with jacking reaction force F p The relationship fitting diagram of the change is as follows Figure 8 As shown, the corresponding prediction model is shown in the following expression:

[0079]

[0080] The correlation coefficient R corresponding to the prediction model 2 They are 0.993 and 0.9453 respectively, which shows that the fitting degree of the prediction model is good.

[0081] The above is a description of one or more embodiments of the present invention, and while the description is relatively specific and detailed, it should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the spirit of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A monitoring system for the mechanical response of vertical jacking construction in a submarine tunnel, characterized by: It includes signal acquisition module, signal transmission and storage module, data analysis module, construction early warning module and construction prediction module; The signal acquisition module includes a jacking reaction force sensor, a steel bar strain sensor, a lining displacement sensor, and a joint displacement sensor; wherein the jacking reaction force sensor is arranged in the jacking device to obtain jacking reaction force data acting on the horizontal tunnel lining; the steel bar strain sensor is buried in the inner and outer steel bar surfaces during the reinforced concrete construction of the horizontal tunnel lining to obtain steel bar strain data; the lining displacement sensor is arranged on the inner surface of the lining to obtain lining displacement data; the joint displacement sensor is arranged at the lining joint to obtain joint displacement data; The signal transmission and storage module includes a signal transmission device and a signal storage device; wherein the signal transmission device is used to establish a data connection and transmission between the signal acquisition module and the signal storage device and the data analysis module; the signal storage device includes a device for storing the jacking reaction force and tunnel lining mechanical response data acquired by the signal acquisition module, as well as a control standard for storing the tunnel lining mechanical response data; The data analysis module includes a data preprocessing unit and a data analysis unit; wherein the data preprocessing unit is used to preprocess the raw data obtained by the signal acquisition module; the data analysis unit is used to calculate and analyze the data to determine in real time whether the technical parameters of the mechanical response of the vertical jacking construction of the submarine pipe jacking are within the control range; The construction warning module is used to trigger an early warning according to the judgment result of the data analysis unit; The construction prediction module is used to establish a model of how the mechanical response parameters of the horizontal tunnel lining change with the jacking reaction force based on the data processed by the data preprocessing unit.

2. A prediction method, characterized in that: For the mechanical response monitoring system for vertical jacking construction of an undersea tunnel according to claim 1, the prediction method comprises the following steps: S100, jacking reaction force monitoring: During the vertical jacking construction of the submarine tunnel, the jacking reaction force F acting on the horizontal tunnel lining by the jacking reaction force sensor arranged in the jacking device is obtained. p Data: Lifting reaction force F t It is numerically equal to the sum of the jacking forces of all jacks of the jacking device, as shown in the following formula: F p =ΣF jn Among them, F jn is the jacking force of the nth jack; S200, lining segment internal force monitoring: During the vertical jacking construction of the submarine tunnel, the strain of the inner and outer steel bars is obtained by the steel bar strain sensors arranged on the surface of the inner and outer steel bars of the lining, and then the axial force N at the monitoring section where the steel bar strain sensor is located is calculated. n and bending moment M n The value satisfies the following expression: Among them, ε 1n is the strain of the inner reinforcement at the nth monitoring section, ε 2n is the strain of the outer reinforcement at the nth monitoring section, E is the elastic modulus of the lining segment, A n is the area of ​​the nth monitoring section, h0 is the distance between the inner and outer steel bar centroids, I n is the moment of inertia at the nth monitoring section; The calculated (N n ,M n ) is in N u -M u The data analysis unit determines whether the eccentric compressive bearing capacity of the horizontal tunnel lining meets the requirements within the relevant curve range; when the data analysis unit determines after analysis that the eccentric compressive bearing capacity of the horizontal tunnel lining does not meet the requirements, the construction early warning module issues an early warning; S300, lining segment displacement monitoring: During the vertical jacking construction of the submarine tunnel, the displacement of the lining segment is obtained by the lining displacement sensor arranged on the inner surface of the lining segment, including the lining clearance convergence X c and the vertical displacement of the dome X h , and satisfy the following expression: Among them, [X c ] is the lining clearance convergence limit, [X h ] is the vertical displacement limit of the arch; when the data analysis unit determines that the lining clearance convergence X c Or the vertical displacement of the dome X h When the requirements are not met, an early warning is issued through the construction early warning module; S400, joint displacement monitoring: During the vertical jacking construction of the submarine tunnel, the joint displacement sensor is deployed at the lining joint to obtain the joint displacement, including the joint opening amount X o and joint misalignment X f , and satisfy the following expression: Among them, [X o ] is the limit of seam opening, [X f ] is the limit of the seam misalignment; when the data analysis unit determines the seam opening amount X after analysis o Or seam misalignment X f When the requirements are not met, an early warning is issued through the construction early warning module; S500, prediction of mechanical response of vertical jacking construction: Based on the data processed by the data preprocessing unit, a model is established to show how the mechanical response parameters of the horizontal tunnel lining change with the jacking reaction force. The model adopts a linear model, as shown in the following expression: Y m =k m ·F p +b m Among them, Y m is the mth mechanical response parameter, and the mechanical response parameter includes the axial force N at the monitoring section involved in steps S100 to S400 n , bending moment M n , lining clearance convergence X c , vertical displacement X h , horizontal displacement X v , seam opening X o and joint misalignment X f ;k m and b m Both are adjustment factors.

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