Stratum-structure mechanical property monitoring system and method in vertical jacking construction

Abstract

The invention discloses a stratum-structure mechanical property monitoring system and method in vertical jacking construction, the system comprises a data acquisition subsystem, a database subsystem, a data processing subsystem and a decision subsystem, the data acquisition subsystem obtains stratum-structure mechanical property parameter data in real time, and the data processing subsystem processes the data in real time; the data processing subsystem analyzes and judges the data, and finally the decision-making subsystem controls related construction equipment according to a judgment result; the method comprises the steps of monitoring the average stratum vertical displacement of the underlying stratum, monitoring the vertical pressure of the underlying stratum, calculating the vertical foundation bed coefficient, monitoring the differential settlement of the underlying stratum and controlling the differential settlement of the underlying stratum. Through real-time monitoring of stratum-structure mechanical property parameters during construction, whether average settlement and differential settlement of an underlying stratum meet requirements or not is analyzed and judged, so that construction technical parameters are adjusted in real time, and then construction quality is controlled.

Description

Technical Field

[0001] The invention belongs to the technical field of underground tunnel engineering, and relates to a system and method for monitoring stratum-structure mechanical properties in vertical jacking construction. Background Art

[0002] Drainage tunnels are important supporting buildings for large nuclear power plants in coastal areas. The drainage head structure of a drainage tunnel usually consists of a horizontal shield tunnel and multiple vertical jacking pipes. The vertical jacking method is widely used in the jacking pipe construction of the drainage head structure of a drainage tunnel due to its advantages such as short construction period, small impact on the environment and high economic benefits.

[0003] During the vertical jacking construction of the submarine jacking pipe, the jacking equipment provides the pipe segment with a vertical upward repeated loading and unloading lifting force, which is equivalent to the vertical downward repeated loading and unloading lifting reaction force acting on the jacking equipment and transmitted to the underlying stratum of the horizontal tunnel. Due to the large magnitude of the lifting reaction force during the vertical jacking construction, the underlying stratum of the horizontal tunnel is likely to undergo excessive or uneven settlement during the load-bearing process, which may not only affect the structural safety of the horizontal tunnel, but also cause the jacking equipment and the jacking pipe to be too inclined and have the risk of overturning, and then cause problems such as pipe segment jamming and gap leakage, and even cause the seabed high-pressure water and sediment to flow into the jacking pipe, causing personal injury and the scrapping of the water diversion project. These construction quality problems that are easy to occur and have serious consequences require high-standard real-time monitoring and control of the stratum-structure mechanical characteristic parameters such as the base bed coefficient, settlement and uneven settlement of the underlying stratum of the horizontal tunnel during the entire process of the vertical jacking construction of the submarine jacking pipe.

[0004] At present, the main way to ensure the stability of the underlying strata of horizontal tunnels during the vertical jacking construction of submarine jacking pipes is pre-construction foundation reinforcement and post-construction inspection, including grouting reinforcement of the underlying strata before construction, inspection of construction records after construction, detection of the inclination of the jacking pipe, and displacement of the horizontal tunnel. These practices are all pre- or post-construction inspections, and fail to monitor in real time during construction and adjust the construction methods immediately to control the construction quality.

[0005] At present, there is an urgent need to propose a corresponding formation-structure mechanical properties monitoring system and method for the vertical jacking construction of submarine pipe jacking, so as to realize the real-time monitoring and control of the technical parameters of the vertical jacking construction of submarine pipe jacking, and improve the information construction level and safety and reliability of the vertical jacking construction of submarine pipe jacking. Summary of the invention

[0006] In view of the shortcomings of the existing technology, the present invention proposes a system and method for monitoring the stratum-structure mechanical properties in vertical jacking construction, which is suitable for monitoring and controlling the stratum-structure mechanical properties in the vertical jacking construction of the jacking pipe of the drainage head structure of the submarine drainage tunnel, and is conducive to realizing real-time monitoring and control of the technical parameters of the vertical jacking construction of the submarine jacking pipe, and improving the information construction level and safety and reliability of the vertical jacking construction of the submarine jacking pipe.

[0007] In a first aspect, the present application discloses a system for monitoring the mechanical properties of a stratum-structure in vertical jacking construction, the system comprising a data acquisition subsystem, a database subsystem, a data processing subsystem and a decision-making subsystem;

[0008] The data acquisition subsystem includes a formation pressure sensor and a formation displacement sensor; wherein the formation pressure sensor is arranged on the outer surface of the lining of the horizontal tunnel, and is used to obtain formation pressure data acting on the outer surface of the lining of the horizontal tunnel; the formation displacement sensor is arranged on the outer surface of the lining of the horizontal tunnel, and is used to obtain formation displacement data of the formation surrounding the horizontal tunnel;

[0009] The database subsystem includes a data transmission module, a digital twin database and a control standard database; wherein the data transmission module is used to establish data connection and transmission between the data acquisition subsystem and the digital twin database; the digital twin database is used to store the formation-structure mechanical property data acquired by the data acquisition subsystem, and is used to store the formation-structure mechanical property data of other tunnel lining structures similar to the current tunnel lining structure under different jacking reaction forces and different geological conditions; the control standard database is used to store the formation-structure mechanical property data control standards in the vertical jacking construction of the submarine jacking pipe;

[0010] The data processing subsystem includes a data preprocessing module and a data analysis module; wherein the data preprocessing module is used to preprocess the raw data stored in the digital twin database to reduce data noise and redundancy; the data analysis module is used to calculate and analyze the data, and to determine in real time whether the technical parameters of the formation-structure mechanical characteristics of the vertical jacking construction of the submarine jacking pipe are within the expected range;

[0011] The decision-making subsystem includes an early warning module and a feedback control module; wherein the early warning module is used to control the alarm to issue an early warning according to the judgment result of the data analysis module; the feedback control module is used to control the jacking device arranged in the horizontal tunnel according to the judgment result of the data analysis module, thereby regulating the construction method.

[0012] Preferably, the jacking device includes a jacking device bracket, a jack and a jacking device base, the jack is located above the jacking device base and below the jacking device bracket; the jacking device bracket is located at the bottom of the jacking pipe; the jacking device base is supported on the bottom lining of the horizontal tunnel, and the central axis of the jacking device base coincides with the central axis of the jacking pipe.

[0013] Preferably, there are four jacks in total, and they are distributed in a central symmetrical manner along the central axis of the base of the jacking device.

[0014] The second aspect of the present application discloses a method for monitoring the mechanical properties of a stratum-structure in vertical jacking construction, the method comprising:

[0015] S100, monitoring of average stratum vertical displacement of underlying strata: During the vertical jacking construction of the submarine jacking pipe, the stratum displacement sensors arranged on the outer surface of the lining of the horizontal tunnel are used to obtain the stratum displacement under the interaction between the lining structure of the horizontal tunnel and the underlying stratum; the average stratum vertical displacement S of the underlying stratum s0 Satisfies the following expression:

[0016]

[0017] Among them, S sn is the vertical displacement of the underlying stratum at the corresponding position on the outer surface of the horizontal tunnel lining during the vertical jacking construction measured by the nth stratum displacement sensor; [S s0 ] is the average stratum vertical displacement limit;

[0018] When the data processing subsystem determines the average vertical displacement S of the underlying stratum after analysis, s0 When the requirements are not met, the alarm is controlled by the early warning module to issue an early warning;

[0019] S200, monitoring of the vertical pressure of the underlying stratum and calculation of the vertical bed coefficient: During the vertical jacking construction of the submarine jacking pipe, the stratum pressure sensor arranged on the outer surface of the lining of the horizontal tunnel is used to obtain the vertical component of the stratum pressure under the interaction between the lining structure of the horizontal tunnel and the underlying stratum, and then the vertical bed coefficient k at the corresponding position is calculated. hn ; The vertical bed coefficient k hn Satisfies the following expression:

[0020]

[0021] Among them, P sn is the vertical pressure of the underlying stratum at the corresponding position on the outer surface of the horizontal tunnel lining during the vertical jacking construction measured by the nth stratum pressure sensor;

[0022] S300, monitoring of uneven settlement of the underlying stratum: during the vertical jacking construction of the submarine jacking pipe, the stratum pressure and stratum displacement under the interaction between the lining structure of the horizontal tunnel and the underlying stratum are obtained by using the stratum pressure sensor and the stratum displacement sensor arranged on the outer surface of the lining of the horizontal tunnel;

[0023] Uneven settlement of the underlying strata ΔS s Satisfies the following expression:

[0024] ΔS s =|S snmax -S snmin |≤[ΔS s ]

[0025] Among them, S snmax is the maximum vertical displacement of the underlying stratum measured by the stratum displacement sensor, S snmin is the minimum value of the vertical displacement of the underlying stratum measured by the stratum displacement sensor, [ΔS s ] is the limit of uneven settlement of the underlying stratum;

[0026] S400, control of uneven settlement of underlying strata: When the data processing subsystem determines the uneven settlement ΔS described in step S300 after analysis, s When the requirements are not met, the alarm is controlled by the early warning module to issue an early warning, and the feedback control module is used to control the uneven settlement ΔS s The magnitude and azimuth of the jack are used to adjust the pressure value of the jack. For this purpose, it is necessary to calculate the resultant moment M of the formation reaction force on the central axis of the jacking device caused by the uneven settlement of the underlying formation. s , the total moment of formation reaction force M s Satisfies the following expression:

[0027]

[0028] Where dA is the unit area within the base of the lifting device, d kn is the horizontal displacement of the unit area from the central axis of the lifting equipment;

[0029] The resultant moment of the formation reaction force M s Along the horizontal x-axis and y-axis, it is decomposed into M sx and M sy , that is, M sx is the resultant moment of formation reaction force M s The component along the x-axis, and M sx The rotation axis of M is the x-axis; sy is the resultant moment of formation reaction force M s The component along the y-axis, and M syThe rotation axis is the y-axis; then the additional top force ΔT for the nth jack rotating along the x-axis direction xn and the additional top force ΔT when rotating along the y-axis yn Satisfy the following expressions respectively:

[0030]

[0031] Among them, d txn is the rotation arm of the nth jack about the x-axis, d tyn is the rotation arm of the nth jack about the y-axis;

[0032] The uneven settlement of the underlying strata ΔS obtained from real-time monitoring s Additional top force ΔT is not calculated xn and ΔT yn , adjust the pressure value of each jack in real time until the uneven settlement ΔS s Until the requirements are met.

[0033] Compared with the prior art, the beneficial effects of the present invention are as follows: in view of the mechanical interaction between the horizontal tunnel lining structure and the underlying stratum in the vertical jacking construction of the jacking pipe of the drainage head structure of the submarine drainage tunnel, a stratum-structure mechanical property monitoring system and method in vertical jacking construction are disclosed, the system comprising a data acquisition subsystem, a database subsystem, a data processing subsystem and a decision subsystem; wherein the data acquisition subsystem is used to obtain the stratum-structure mechanical property parameter data in the vertical jacking construction in real time, and then transmit the data to the database subsystem and the data processing subsystem, and then the data processing subsystem analyzes and determines whether the average settlement and uneven settlement of the underlying stratum of the horizontal tunnel in the vertical jacking construction of the submarine jacking pipe meet the expected requirements, Finally, the decision-making subsystem controls the relevant equipment according to the judgment result to adjust the output parameters of the construction equipment in real time; in addition, the present invention also discloses a method of the stratum-structure mechanical property monitoring system in the vertical jacking construction, which includes the average stratum vertical displacement monitoring of the underlying stratum, the vertical pressure monitoring of the underlying stratum and the calculation of the vertical base bed coefficient, the uneven settlement monitoring of the underlying stratum and the uneven settlement control of the underlying stratum; the method is suitable for the stratum-structure mechanical property monitoring system in the vertical jacking construction, by real-time monitoring of the stratum-structure mechanical property parameters during the vertical jacking construction process, analyzing and judging whether the average settlement and uneven settlement of the underlying stratum meet the expected requirements, thereby achieving real-time adjustment of construction technical parameters and controlling construction quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is a flow chart of the monitoring method of the present invention;

[0035] Figure 2It is a connection diagram of the stratum-structure mechanical property monitoring system in the vertical jacking construction of the present invention;

[0036] Figure 3 It is a structural schematic diagram of the stratum-structure mechanical property monitoring system in vertical jacking construction of the present invention;

[0037] Figure 4 It is a calculation schematic diagram of the monitoring method of the present invention for controlling uneven settlement of underlying strata;

[0038] Figure numerals: 1-data acquisition subsystem, 11-formation pressure sensor, 12-formation displacement sensor, 2-database subsystem, 21-data transmission module, 22-digital twin database, 23-control standard database, 3-data processing subsystem, 31-data preprocessing module, 32-data analysis module, 4-decision-making subsystem, 41-early warning module, 42-feedback control module, 5-jacking pipeline, 6-lifting device, 61-lifting device bracket, 62-jack, 63-lifting device base, 7-horizontal tunnel. DETAILED DESCRIPTION

[0039] The following is a more detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and the accompanying drawings so that a person skilled in the art can implement the embodiments after reading the description. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0040] The project based on this embodiment is the integrated design and construction project of drainage tunnels for units 3 and 4 of the Zhangzhou Nuclear Power Plant. The project adopts the drainage scheme of "shield starting pit + drill and blast tunnel + shield tunnel + drainage head". The drainage head structure of the drainage tunnel consists of a horizontal tunnel 7 and 10 vertical reinforced concrete jacking pipes 5. The jacking reaction force during the vertical jacking construction is transmitted to the underlying stratum of the horizontal tunnel through the jacking device base 63, and the geometric shape of the jacking device base 63 is a square with a side length of 4m.

[0041] The first aspect of the present invention provides Figure 1-4 The stratum-structure mechanical property monitoring system in vertical jacking construction shown in the figure comprises a data acquisition subsystem 1, a database subsystem 2, a data processing subsystem 3 and a decision subsystem 4;

[0042] The data acquisition subsystem 1 includes a formation pressure sensor 11 and a formation displacement sensor 12; wherein the formation pressure sensors 11 are 5 groups in total, arranged on the outer surface of the lining of the horizontal tunnel 7, and used to obtain the formation pressure data acting on the outer surface of the lining of the horizontal tunnel; the formation displacement sensors 12 are 5 groups in total, arranged on the outer surface of the lining of the horizontal tunnel 7, and used to obtain the formation displacement data of the formation around the horizontal tunnel;

[0043] The database subsystem 2 includes a data transmission module 21, a digital twin database 22 and a control standard database 23; wherein the data transmission module 21 is used to establish a data connection and transmission between the data acquisition subsystem 1 and the digital twin database 22; the digital twin database 22 is used to store the formation-structure mechanical property data acquired by the data acquisition subsystem 1, and to store the formation-structure mechanical property data of other tunnel lining structures similar to the current tunnel lining structure under different jacking reaction forces and different geological conditions; the control standard database 23 is used to store the formation-structure mechanical property data control standards in the vertical jacking construction of the submarine jacking pipe;

[0044] The data processing subsystem 3 includes a data preprocessing module 31 and a data analysis module 32; wherein the data preprocessing module 31 is used to preprocess the original data stored in the digital twin database 22 to reduce data noise and redundancy; the data analysis module 32 is used to calculate and analyze the data, and to determine in real time whether the technical parameters of the formation-structure mechanical characteristics of the vertical jacking construction of the submarine jacking pipe are within the expected range;

[0045] The decision-making subsystem 4 includes an early warning module 41 and a feedback control module 42; wherein the early warning module 41 is used to control the alarm to issue an early warning according to the judgment result of the data analysis module 32; the feedback control module 42 is used to control the jacking device 6 arranged in the horizontal tunnel according to the judgment result of the data analysis module 32, thereby regulating the construction method and effect.

[0046] In a specific implementation, the jacking device 6 includes a jacking device bracket 61, a jack 62 and a jacking device base 63, wherein the jack 62 is located above the jacking device base 63 and below the jacking device bracket 61; the jacking device bracket 61 is located at the bottom of the jacking pipe 5; the jacking device base 63 is supported on the bottom lining of the horizontal tunnel, and the central axis of the jacking device base 63 coincides with the central axis of the jacking pipe 5.

[0047] In a specific implementation, there are four jacks 62 in total, and they are centrally symmetrically distributed along the central axis of the jacking device base 63 .

[0048] A second aspect of the present invention provides Figure 1-4 The method of the stratum-structure mechanical property monitoring system in vertical jacking construction shown in the figure specifically comprises the following steps:

[0049] S100, monitoring of average vertical displacement of the underlying stratum: During the vertical jacking construction of the submarine jacking pipe, the stratum displacement sensor 12 arranged on the outer surface of the lining of the horizontal tunnel 7 is used to obtain the stratum displacement under the interaction between the horizontal tunnel lining structure and the underlying stratum; the average vertical displacement S of the underlying stratum s0 Satisfies the following expression:

[0050]

[0051] Among them, S sn is the vertical displacement of the underlying stratum at the corresponding position on the outer surface of the horizontal tunnel lining during the vertical jacking construction measured by the nth stratum displacement sensor; [S s0 ] is the average stratum vertical displacement limit;

[0052] When the data processing subsystem 3 determines the average vertical displacement S of the underlying stratum after analysis, s0 When the requirements are not met, the alarm is controlled by the early warning module 41 to issue an early warning;

[0053] In the specific implementation, the average vertical displacement limit of the formation [S s0 ] is 20 mm. For the most unfavorable situation during the vertical jacking construction of the submarine jacking pipe, that is, when the jacking reaction force reaches the maximum value, according to the measured results of the five groups of formation displacement sensors 12, for the nth formation displacement sensor 12, the corresponding underlying formation vertical displacement S s1 4.4mm, S s2 4.0mm, S s3 3.5mm, S s4 3.0mm, S s5 is 2.7 mm, then the average vertical displacement S is calculated according to formula (1): s0 is 3.52mm, which meets S s0 ≤[S s0 ] requirements, no warning was triggered;

[0054] S200, monitoring of the vertical pressure of the underlying stratum and calculation of the vertical bed coefficient: During the vertical jacking construction of the submarine jacking pipe, the stratum pressure sensor 11 arranged on the outer surface of the lining of the horizontal tunnel is used to obtain the vertical component of the stratum pressure under the interaction between the horizontal tunnel lining structure and the underlying stratum, and then the vertical bed coefficient k at the corresponding position is calculated. hn ; The vertical bed coefficient k hn Satisfies the following expression:

[0055]

[0056] Among them, P snis the vertical pressure of the underlying stratum at the corresponding position on the outer surface of the horizontal tunnel lining during the vertical jacking construction, measured by the nth stratum pressure sensor 11;

[0057] In a specific implementation, when the jacking reaction force during the vertical jacking construction of the submarine jacking pipe reaches the maximum value, according to the measured results of the five groups of formation pressure sensors 11, for the nth formation pressure sensor 11, the corresponding underlying formation vertical pressure P s1 87kPa, P s2 86kPa, P s3 81kPa, P s4 64kPa, P s5 is 51 kPa; according to formula (2), for the location of the nth formation pressure sensor 11, the corresponding vertical bed coefficient k h1 19.77MPa / m, k h2 21.50MPa / m, k h3 23.14MPa / m, k h4 21.33MPa / m, k h5 18.89MPa / m;

[0058] S300, monitoring of uneven settlement of the underlying stratum: during the vertical jacking construction of the submarine jacking pipe, the stratum pressure and stratum displacement under the interaction between the horizontal tunnel lining structure and the underlying stratum are obtained by using the stratum pressure sensor 11 and the stratum displacement sensor 12 arranged on the outer surface of the horizontal tunnel lining;

[0059] Uneven settlement of underlying strata ΔS s Satisfies the following expression:

[0060] ΔS s =|S snmax -S snmin |≤[ΔS s ] (3)

[0061] Among them, S snmax is the maximum vertical displacement of the underlying stratum measured by the stratum displacement sensor 12, S snmin is the minimum value of the vertical displacement of the underlying stratum measured by the stratum displacement sensor 12, [ΔS s ] is the limit of uneven settlement of the underlying stratum;

[0062] In the specific implementation, [ΔS s ]=0.04%L=1.6mm, where L is the distance between the cross sections of the first and fifth formation displacement sensors 12, and the difference ΔS between the formation displacements measured by the first and fifth formation displacement sensors 12 sis 1.7 mm, which does not satisfy ΔS s ≤[ΔS s ] requirements;

[0063] S400, control of uneven settlement of the underlying stratum: after the data processing subsystem 3 has analyzed and determined the uneven settlement of the underlying stratum ΔS in step S300 s If the requirements are not met, the alarm is controlled by the early warning module 41 to issue an early warning, and the feedback control module 42 controls the uneven settlement ΔS s The value and azimuth of the jack 62 are used to adjust the pressure value of the jack 62. For this purpose, it is necessary to calculate the combined moment M of the formation reaction force on the central axis of the jacking device caused by the uneven settlement of the underlying formation. s , the total moment of formation reaction force M s Satisfies the following expression:

[0064]

[0065] Where dA is the unit area within the base of the lifting device, d kn is the horizontal displacement of the unit area from the center axis of the jacking device;

[0066] The resultant moment of the formation reaction force M s Along the horizontal x-axis and y-axis, it is decomposed into M sx and M sy , that is, M sx is the resultant moment of formation reaction force M s The component along the x-axis, and M sx The rotation axis of M is the x-axis; sy is the resultant moment of formation reaction force M s The component along the y-axis, and M sy The rotation axis is the y-axis; then for the additional top force ΔT when the n-th jack 62 rotates along the x-axis direction xn and the additional top force ΔT when rotating along the y-axis yn Satisfy the following expressions respectively:

[0067]

[0068] Among them, d txn is the rotation arm of the nth jack 62 with respect to the x-axis, d tyn is the rotation arm of the nth jack 62 with respect to the y-axis;

[0069] The uneven settlement of the underlying strata ΔS obtained from real-time monitoring s Calculate the additional top force ΔT xn and ΔT yn, adjust the lifting force value of each jack 62 in real time until the uneven settlement ΔS s Until the requirements are met;

[0070] In the specific implementation, according to the measured data in steps S100 to S300 and formula (4), the formation reaction force moment M is calculated. s is 214.0 kN·m, and M s The rotation axis of M is at an angle of 135° to the positive direction of the x-axis and 45° to the positive direction of the y-axis respectively. sx -151.3kN·m, M sy is 151.3 kN·m; for Figure 4 The jacks X1, X2, Y1 and Y2 shown have corresponding rotation arm d tx1 ,d tx2 ,d txy1 and d txy2 All are 2m, and ΔT is calculated according to formula (5): x1 and ΔT y1 Both are 37.8kN, and ΔT x2 and ΔT y2 All are -37.8kN; previously, the lifting forces provided by jacks X1, X2, Y1 and Y2 were all 400kN, so the additional lifting force ΔT should be calculated based on the xn and ΔT yn , adjust the lifting forces provided by jacks X1, X2, Y1 and Y2 to 437.8 kN, 362.2 kN, 437.8 kN and 362.2 kN, and continue real-time monitoring until the underlying stratum settles unevenly ΔS s Until the requirements are met.

[0071] The above are one or more embodiments of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. The stratum-structure mechanical property monitoring system in vertical jacking construction is characterized by: It includes data acquisition subsystem, database subsystem, data processing subsystem and decision-making subsystem; The data acquisition subsystem includes a formation pressure sensor and a formation displacement sensor; wherein the formation pressure sensor is arranged on the outer surface of the lining of the horizontal tunnel, and is used to obtain formation pressure data acting on the outer surface of the lining of the horizontal tunnel; the formation displacement sensor is arranged on the outer surface of the lining of the horizontal tunnel, and is used to obtain formation displacement data of the formation surrounding the horizontal tunnel; The database subsystem includes a data transmission module, a digital twin database and a control standard database; wherein the data transmission module is used to establish data connection and transmission between the data acquisition subsystem and the digital twin database; the digital twin database is used to store the formation-structure mechanical property data acquired by the data acquisition subsystem; the control standard database is used to store the formation-structure mechanical property data control standards in the vertical jacking construction of the submarine jacking pipe; The data processing subsystem includes a data preprocessing module and a data analysis module; wherein the data preprocessing module is used to preprocess the original data stored in the digital twin database; the data analysis module is used to calculate and analyze the data, and judge in real time whether the technical parameters of the formation-structure mechanical characteristics of the vertical jacking construction of the submarine jacking pipe are within the expected range; The decision-making subsystem includes an early warning module and a feedback control module; wherein the early warning module is used to control the alarm to issue an early warning according to the judgment result of the data analysis module; the feedback control module is used to control the jacking device arranged in the horizontal tunnel according to the judgment result of the data analysis module, thereby regulating the construction method.

2. The system for monitoring the mechanical properties of the stratum and structure in vertical jacking construction according to claim 1 is characterized by: The jacking device includes a jacking device bracket, a jack and a jacking device base, wherein the jack is located above the jacking device base and below the jacking device bracket; the jacking device bracket is located at the bottom of the jacking pipe; the jacking device base is supported on the bottom lining of the horizontal tunnel, and the central axis of the jacking device base coincides with the central axis of the jacking pipe.

3. The system for monitoring the stratum-structure mechanical properties in vertical jacking construction according to claim 2 is characterized in that: There are four jacks in total, and they are distributed symmetrically along the central axis of the base of the jacking device.

4. A monitoring method, characterized in that: A system for monitoring the mechanical properties of a stratum-structure in any vertical jacking construction as claimed in any one of claims 1 to 3, wherein the monitoring method comprises the following steps: S100, monitoring of average stratum vertical displacement of underlying strata: During the vertical jacking construction of the submarine jacking pipe, the stratum displacement sensor arranged on the outer surface of the lining of the horizontal tunnel is used to obtain the stratum displacement under the interaction between the lining structure of the horizontal tunnel and the underlying stratum; the average stratum vertical displacement S of the underlying stratum s0 Satisfies the following expression: Among them, S sn is the vertical displacement of the underlying stratum at the corresponding position on the outer surface of the horizontal tunnel lining during the vertical jacking construction measured by the nth stratum displacement sensor; [S s0 ] is the average stratum vertical displacement limit; When the data processing subsystem determines the average vertical displacement S of the underlying stratum after analysis, s0 When the requirements are not met, the alarm is controlled by the early warning module to issue an early warning; S200, monitoring of the vertical pressure of the underlying stratum and calculation of the vertical bed coefficient: During the vertical jacking construction of the submarine jacking pipe, the stratum pressure sensor arranged on the outer surface of the lining of the horizontal tunnel is used to obtain the vertical component of the stratum pressure under the interaction between the lining structure of the horizontal tunnel and the underlying stratum, and then the vertical bed coefficient k at the corresponding position is calculated. hn ; The vertical bed coefficient k hn Satisfies the following expression: Among them, P sn is the vertical pressure of the underlying stratum at the corresponding position on the outer surface of the horizontal tunnel lining during the vertical jacking construction measured by the nth stratum pressure sensor; S300, monitoring of uneven settlement of underlying strata: uneven settlement of underlying strata ΔS s Satisfies the following expression: ΔS s =|S snmax -S snmin |≤[ΔS s ] Among them, S snmax is the maximum vertical displacement of the underlying stratum measured by the stratum displacement sensor, S snmin is the minimum value of the vertical displacement of the underlying stratum measured by the stratum displacement sensor, [ΔS s ] is the limit of uneven settlement of the underlying stratum; S400, control of uneven settlement of the underlying stratum: when the data processing subsystem determines the uneven settlement of the underlying stratum ΔS in step S300 after analysis, s When the requirements are not met, the alarm is controlled by the early warning module to issue an early warning, and the feedback control module is used to control the uneven settlement of the underlying stratum ΔS s The magnitude and azimuth of the jacking force of the adjustment jack; the resultant moment of the formation reaction force M s Satisfies the following expression: Where dA is the unit area within the base of the lifting device, d kn is the horizontal displacement of the unit area from the central axis of the lifting equipment; The resultant moment of the formation reaction force M s Along the horizontal x-axis and y-axis, it is decomposed into M sx and M sy , that is, M sx is the resultant moment of formation reaction force M s The component along the x-axis, and M sx The rotation axis of M is the x-axis; sy is the resultant moment of formation reaction force M s The component along the y-axis, and M sy The rotation axis is the y-axis; then the additional top force ΔT for the nth jack rotating along the x-axis direction xn and the additional top force ΔT when rotating along the y-axis yn Satisfy the following expressions respectively: Among them, d txn is the rotation arm of the nth jack about the x-axis, d tyn is the rotation arm of the nth jack about the y-axis; Obtain the uneven settlement ΔS of the underlying stratum according to real-time monitoring s Calculate the additional top force ΔT xn and ΔT yn , adjust the lifting force value of each jack in real time until the uneven settlement of the underlying stratum ΔS s Until the requirements are met.

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