Intelligent tunnel segment monitoring system

Abstract

The application discloses a kind of intelligent tunnel segment monitoring systems, comprising: first displacement transfer plate, second displacement transfer plate, misalignment monitoring sensor, several vibration monitoring sensors, main control device, protective shell, several tunnel segments;First displacement transfer plate and second displacement transfer plate are respectively installed vibration monitoring sensor;First displacement transfer plate and second displacement transfer plate are adjacent and interval arrangement in two tunnel segments, and any one of first displacement transfer plate and second displacement transfer plate is connected with protective shell;Misalignment monitoring sensor is connected with first displacement transfer plate, second displacement transfer plate respectively, and connected with external terminal equipment by main control device;Vibration monitoring sensor is connected with external terminal equipment by main control device, and several vibration monitoring sensors are connected with each other vertically two by two.The displacement and vibration acceleration of the tunnel segment misalignment of the present application are converted into the resistance value of graphene sensing resistance sheet, and the misalignment and vibration condition of the tunnel segment are known.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of tunnel engineering monitoring, and particularly relates to an intelligent tunnel segment monitoring system. BACKGROUND

[0002] In the highly developed modern industry, sensor application technology is one of the important foundations of modern measurement and control system engineering. The high-speed development of information technology and the wide application of computer technology provide a good and reliable scientific and technological foundation for the development of sensors.

[0003] Tunnel segment misalignment refers to the misalignment of adjacent tunnel segments in space, resulting in the unevenness of the inner wall between the continuous tunnel segments. Tunnel segment misalignment is a common technical problem and disease phenomenon in shield tunnel construction and operation, and has not been given enough attention for a long time. Tunnel segment misalignment not only affects the appearance, but also affects the safety of tunnel structure, causes segment cracking, falling, assembly difficulty, waterproof hidden danger and the like, and threatens the operation safety of the tunnel, so it is necessary to monitor the misalignment of the tunnel segment. SUMMARY

[0004] The purpose of the present application is to provide an intelligent tunnel segment monitoring system to solve the problems existing in the prior art.

[0005] To achieve the above purpose, the present application provides an intelligent tunnel segment monitoring system, comprising:

[0006] a first displacement transmission plate, a second displacement transmission plate, a misalignment monitoring sensor, a plurality of vibration monitoring sensors, a main control device, a protective shell, and a plurality of tunnel segments;

[0007] The first displacement transmission plate and the second displacement transmission plate are respectively provided with vibration monitoring sensors;

[0008] The first displacement transmission plate and the second displacement transmission plate are arranged adjacent to and spaced apart on the two adjacent tunnel segments, and any one of the first displacement transmission plate and the second displacement transmission plate is connected with the protective shell;

[0009] The misalignment monitoring sensor is connected with the first displacement transmission plate and the second displacement transmission plate (2), and connected with an external terminal device through the main control device;

[0010] The vibration monitoring sensor is connected with the external terminal device through the main control device, and the plurality of vibration monitoring sensors are connected with each other in pairs.

[0011] Optionally, it further comprises a positioning frame for fixing the vibration monitoring sensor inside, which is arranged on the displacement transmission plate and comprises four positioning plates forming a closed loop structure.

[0012] Optionally, the displacement monitoring sensor is used to obtain the displacement physical quantity of the tunnel segment, comprising a first base, a transmission rod, three telescopic rods and a second base connected in sequence; the first base and the second base are arranged on two displacement transmission plates respectively; one telescopic rod is connected with the second base, the transmission rod is connected with a telescopic rod, and the telescopic directions of the three telescopic rods are perpendicular to each other.

[0013] The telescopic rod is used to convert the relative displacement between the two displacement transmission plates into an electrical signal when the displacement between the two displacement transmission plates is generated in the same direction as the telescopic direction.

[0014] Optionally, the vibration monitoring sensor is used to monitor the vibration acceleration information, comprising a fixed frame, a mass block, and a plurality of sensing components; the mass block is arranged at the center of the fixed frame, the mass block is connected with the fixed frame through the sensing components, and the sensing components are uniformly distributed along the circumferential direction of the mass block.

[0015] Optionally, the main control device comprises a fixed seat, a circuit board, a data acquisition interface and a wireless signal transmitting device arranged on the fixed seat; the data acquisition interface and the wireless signal transmitting device are electrically connected with the circuit board.

[0016] Optionally, the telescopic rod comprises a first rod body, a first elastic member, a second elastic member, a third elastic member and a second rod body connected in sequence, and a graphene resistance sensing sheet is further connected between the first elastic member and the third elastic member; the elastic telescopic direction of the graphene resistance sensing sheet is parallel to that of the second elastic member; the graphene resistance sensing sheet is electrically connected with the main control device.

[0017] Optionally, the first rod body is provided with a containing groove, and the first elastic member, the second elastic member, the third elastic member and the graphene resistance sensing sheet are located in the containing groove.

[0018] Optionally, the sensing component (53) comprises a force transmission rod (531), an isostatic beam (532) and a second graphene resistance sensing sheet (533); the force transmission rod (531) is connected with the mass block (52) and the isostatic beam (532) respectively; the force transmission rod (531) is not coplanar with the isostatic beam (532), and the plane where the force transmission rod (531) is located and the plane where the isostatic beam (532) is located are both perpendicular to the vibration direction of the mass block (52); one end of the isostatic beam (532) away from the force transmission rod (531) is connected with the fixed frame (51); the second graphene resistance sensing sheet (533) is arranged on the isostatic beam (532) and electrically connected with the main control device (4).

[0019] Optionally, the bearing sheet, the graphene conductor layer and the signal transmission line are included, the graphene conductor layer is arranged in the bearing sheet, and the signal transmission line is electrically connected with the graphene conductor layer and the master control device respectively.

[0020] Optionally, the fixed rods are further included, the fixed rods are connected with the mass blocks respectively and are uniformly distributed along the circumferential direction of the mass blocks, the inner side surface of the fixed frame is provided with a slot, one end of the fixed rod is inserted into the slot, the fixed rod is provided with elastic members on both sides in the direction perpendicular to the plane where the fixed frame is located, and the elastic members are connected with the fixed frame.

[0021] The technical effect of the present application is:

[0022] The present application provides an intelligent tunnel segment monitoring system, which comprises a displacement transmission plate arranged on each of two adjacent tunnel segments, a dislocation monitoring sensor and a vibration monitoring sensor arranged on the displacement transmission plate, and a master control device connected with the dislocation monitoring sensor and the vibration monitoring sensor, and the master control device is connected with an external terminal device. BRIEF DESCRIPTION OF DRAWINGS

[0023] The accompanying drawings, which form a part of the present application, are intended to provide further understanding of the present application, and the illustrative embodiments of the present application and their description serve the purpose of explaining the present application. The accompanying drawings should not be regarded as an inappropriate limitation of the present application. In the drawings:

[0024] Figure 1 It is a structural schematic diagram of the intelligent tunnel segment monitoring system in the embodiment of the present application;

[0025] Figure 2 It is a functional principle block diagram of the external terminal device in the embodiment of the present application;

[0026] Figure 3 It is a functional principle block diagram of the intelligent tunnel segment monitoring system in the embodiment of the present application;

[0027] Figure 4 It is a structural schematic diagram of the dislocation monitoring sensor in the embodiment of the present application;

[0028] Figure 5 It is a first view of the telescopic rod in the embodiment of the present application;

[0029] Figure 6 It is a second view of the telescopic rod in the embodiment of the present application;

[0030] Figure 7 Schematic diagram of the structure of a vibration monitoring sensor in an embodiment of the present invention;

[0031] Figure 8 This is a schematic diagram of the assembly of three vibration monitoring sensors in an embodiment of the present invention;

[0032] Figure 9 is a schematic diagram of the assembly of the fixing rod and the fixing frame in an embodiment of the present invention;

[0033] Figure 10 Schematic diagram of the structure of the main control device in an embodiment of the present invention;

[0034] Figure 11 Schematic diagram of the assembly of the protective shell and two displacement transmission plates in an embodiment of the present invention;

[0035] Figure 12 Schematic diagram of the structure of a tunnel segment in an embodiment of the present invention;

[0036] Figure numerals: 1-first displacement transmission plate, 2-second displacement transmission plate, 3-misalignment monitoring sensor, 4-main control device, 5-vibration monitoring sensor, 6-positioning frame, 61-positioning plate, 100-external terminal device, 101-computer, 102-mobile phone, 31-first base, 32-transmission rod, 321-vertical portion of transmission rod, 322-horizontal portion of transmission rod, 33-telescopic rod, 331-first rod body, 332-first elastic member, 333-second elastic member, 334-third elastic member, 335-second rod body, 336-first graphene resistance sensing sheet, 337 -carrying plate, 338-graphene conductor layer, 339-signal transmission line, 34-second base, 41-fixing seat, 42-circuit substrate, 43-data acquisition interface, 44-wireless signal transmitter, 45-battery, 46-charging port, 7-supporting rod, 8-fixing rod, 9-elastic member, 10-protective shell, 11-baffle, 12-tunnel segment reserved groove, 200-tunnel segment, 51-fixing frame, 511-fixing frame slot, 52-mass block, 53-sensing component, 531-force transmission rod, 532-equal strength beam, 533-second graphene resistance sensing sheet. DETAILED DESCRIPTION

[0037] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0038] Example 1

[0039] like Figures 1-12 As shown, this embodiment provides an intelligent tunnel segment monitoring system, including:

[0040] Two displacement transmission plates, i.e. a first displacement transmission plate 1 and a second displacement transmission plate 2, and a dislocation monitoring sensor 3; the two displacement transmission plates are arranged on two adjacent tunnel segments respectively. The dislocation monitoring sensor 3 is connected with the two displacement transmission plates respectively, i.e. one end of the dislocation monitoring sensor 3 is connected with the first displacement transmission plate 1, and the other end of the dislocation monitoring sensor 3 is connected with the second displacement transmission plate 2; the dislocation monitoring sensor 3 is used for detecting the relative displacement information between the two displacement transmission plates, and the displacement information between the two displacement transmission plates is equivalent to the displacement information between the two tunnel segments.

[0041] The first displacement transmission plate 1 and the second displacement transmission plate 2 are arranged adjacently and at intervals, and one of the displacement transmission plates is provided with a master control device 4, and the dislocation monitoring sensor 3 is connected with an external terminal device 100 through the master control device 4. The external terminal device 100 is used for acquiring the data output by the dislocation monitoring sensor, and analyzing and calculating the data, so as to acquire the dislocation condition of the adjacent two tunnel segments.

[0042] When the two tunnel segments do not produce the dislocation phenomenon, i.e. do not produce the relative displacement, the inner walls of the two tunnel segments are smooth, and the two displacement transmission plates are in the same plane. When the two tunnel segments produce the relative displacement, i.e. at least one of the two tunnel segments moves, the displacement transmission plate corresponding to the tunnel segment moves, the dislocation monitoring sensor 3 detects the relative displacement information between the two displacement transmission plates, and transmits the displacement information to the external terminal device 100 through the master control device 4, and the external terminal device 100 analyzes the displacement information, so as to acquire whether the two tunnel segments produce the dislocation phenomenon, and the relative displacement direction and the relative displacement size.

[0043] In the application, one dislocation monitoring sensor 3 is connected on the two displacement transmission plates, and the displacement information monitored by the dislocation monitoring sensor 3 is transmitted to the external terminal device 100 by the master control device 4, the relative displacement direction and the relative displacement size between the two displacement transmission plates are obtained by the calculation and analysis of the external terminal device 100, and then whether the adjacent two tunnel segments produce the dislocation phenomenon, and the relative displacement direction and the relative displacement size when the dislocation phenomenon occurs are known, so that the workers can clearly understand the dislocation condition of the tunnel segments.

[0044] As Figure 4As shown, the misalignment monitoring sensor 3 comprises a first base 31, a transmission rod 32, three telescopic rods 33 and a second base 34 connected in sequence; the first base 31 and the second base 34 are respectively corresponding to two displacement transmission plates, specifically, the first base 31 is arranged on the first displacement transmission plate 1, and the second base 34 is arranged on the second displacement transmission plate 2. The transmission rod 32 is perpendicular to the first displacement transmission plate 1; one end of the transmission rod 32 away from the first base 31 is connected with the telescopic rod 33. The telescopic rod 33 is used for converting the relative displacement between the two displacement transmission plates into an electrical signal when the displacement between the two displacement transmission plates in the telescopic direction is generated; three telescopic rods 33, including a first telescopic rod, a second telescopic rod and a third telescopic rod, are connected in sequence, and the telescopic directions of the three telescopic rods 33 are perpendicular to each other, that is, the telescopic directions of the three telescopic rods 33 are distributed in the X-axis, Y-axis and Z-axis directions, so that when the misalignment occurs, the relative displacement between the two adjacent tunnel segments is in which direction of the three-axis direction. When the two tunnel segments do not generate the relative displacement, the Z-axis direction telescopic rod, that is, the first telescopic rod, is flush with the transmission rod 32 in height.

[0045] One telescopic rod (the first telescopic rod) located at the outermost side of the three telescopic rods 33 is connected with the second base 34, and the first telescopic rod is parallel to the transmission rod 32, that is, the first telescopic rod is used for detecting the relative displacement of the two displacement transmission plates in the Z-axis direction; the other telescopic rod (the third telescopic rod) located at the outermost side is connected with the transmission rod 32, specifically, the third telescopic rod is connected with one end of the transmission rod 32 away from the first base 31. When the second telescopic rod is used for detecting the displacement of the two displacement transmission plates in the X-axis direction, the third telescopic rod is used for detecting the displacement of the two displacement transmission plates in the Y-axis direction (the telescopic direction of the second telescopic rod can also be defined as the Y-axis, and the telescopic direction of the third telescopic rod is defined as the X-axis, as long as the telescopic directions of the second telescopic rod and the third telescopic rod are perpendicular to each other).

[0046] The connection between the adjacent two telescopic rods 33, the connection between the transmission rod 32 and the third telescopic rod, and the connection between the first telescopic rod and the second base 34 are fixed connections.

[0047] In a specific embodiment of the present application, the transmission rod 32 is a character-shaped transmission rod 32.

[0048] In another specific embodiment of the present application, as Figure 4As shown, the transmission rod 32 is an L-shaped transmission rod, which comprises a vertical part 321 and a horizontal part 322 connected vertically, the vertical part 321 is connected with the first base 31 vertically, and the horizontal part 322 is connected with the third telescopic rod, and the horizontal part 322 is perpendicular to the third telescopic rod. Compared with a straight transmission rod 32, the L-shaped transmission rod 32 can extend the distance between the first base 31 and the second base 34, so that the installation position of the first base 31 on the first displacement transmission plate 1 is closer to the center of the first displacement transmission plate 1, and / or the installation position of the second base 34 on the second displacement transmission plate 2 is closer to the center of the second displacement transmission plate 2, thereby more sensitive to detect whether the relative displacement between the first displacement transmission plate 1 and the second displacement transmission plate 2 is generated.

[0049] As shown in Figure 5 and Figure 6 As shown, the telescopic rod 33 comprises a first rod body 331, a first elastic member 332, a second elastic member 333, a third elastic member 334, a second rod body 335 and a graphene resistance sensing sheet 336; the first rod body 331, the first elastic member 332, the third elastic member 334 and the second rod body 335 are arranged in sequence; the second elastic member 333 and the graphene resistance sensing sheet 336 are arranged side by side between the first elastic member 332 and the third elastic member 334, and the length direction of the graphene resistance sensing sheet 336 is parallel to the elastic expansion direction of the second elastic member 333. Specifically, one end of the first elastic member 332 along the elastic expansion direction is connected with the first rod body 331, and the other end is connected with the second elastic member 333 and the graphene resistance sensing sheet 336 through the connecting member 35 respectively; one end of the third elastic member 334 along the elastic expansion direction is connected with the second rod body 335, and the other end is connected with the second elastic member 333 and the graphene resistance sensing sheet 336 through the connecting member 35 respectively. The first elastic member 332 and the third elastic member 334 are located on a straight line, and the elastic expansion direction of the first elastic member 332 is parallel to the elastic expansion direction of the second elastic member 333.

[0050] The graphene resistance sensing sheet 336 is electrically connected with the master control device 4. In a specific embodiment of the present application, when the relative displacement between the two displacement transmission plates occurs, and the second displacement transmission plate 2 is lifted upward relative to the first displacement transmission plate 1, neither the second telescopic rod nor the third telescopic rod produces elastic telescopic, only the second base 34 drives the first rod body 331 in the first telescopic rod to move upward relative to the second rod body 335, the first elastic member 332, the second elastic member 333 and the third elastic member 334 all produce elastic compression upward, the graphene resistance sensing sheet 336 in the first telescopic rod produces strain change, and the resistance value changes with the strain change, that is, the displacement physical quantity between the two displacement transmission plates is converted into the resistance value of the graphene resistance sensing sheet 336, and is transmitted to the external terminal device 100 through the master control device 4, and the external terminal device 100 obtains the displacement amount of the two tunnel segments along the Z-axis direction according to the resistance value analysis and calculation, so as to obtain the fault displacement physical quantity value of the tunnel segments along the Z-axis direction; that is, the external terminal device 100 can obtain the fault displacement physical quantity value of the tunnel segments according to the electrical signal output by the fault monitoring sensor 3.

[0051] It is known that the stiffness coefficients of the first elastic member 332 and the third elastic member 334 are both K1, and the stiffness coefficient of the second elastic member 333 is K2, when the displacement Δx of the two tunnel segments in the Z-axis direction occurs, the deformation amount of the graphene resistance sensing sheet 336 is:

[0052]

[0053] The deformation amount x of the graphene resistance sensing sheet 336 g The resistance output by the graphene resistance sensing sheet 336 changes, and is transmitted to the external terminal device 100 through the master control device 4, so that the fault displacement amount of the two tunnel segments along the Z-axis direction can be calculated by the external terminal device 100.

[0054] In the present application, elastic members are arranged on one side and both ends of the graphene resistance sensing sheet 336, respectively, and the three elastic members (the first elastic member 332, the second elastic member 333 and the third elastic member 334) reduce the stretching amount of the graphene resistance sensing sheet 336 and increase the range of the graphene resistance sensing sheet 336, so that the graphene resistance sensing sheet 336 in the three telescopic rods 33 can more sensitively monitor the fault movement of the two tunnel segments along the X-axis, Y-axis and Z-axis directions.

[0055] As Figure 5As shown in the internal structure of the graphene resistance sensing sheet 336, the graphene resistance sensing sheet 336 comprises a bearing sheet 337, a graphene conductor layer 338 and a signal transmission line 339, the graphene conductor layer 338 is arranged in the bearing sheet 337; the two ends of the graphene conductor layer 338 are respectively electrically connected with the host device 4 through the signal transmission line 339. In an embodiment of the present application, the bearing sheet 337 is a polydimethylsiloxane (PDMS) bearing sheet. When the two displacement transmission plates produce relative displacement, the bearing sheet 337 in the telescopic rod 33 which has the same displacement direction as the relative displacement direction deforms, the resistance of the corresponding graphene conductor layer 338 changes, the displacement physical quantity between the two displacement transmission plates is converted into the resistance value of the graphene conductor layer 338, and the resistance value is transmitted to the external terminal device 100 through the host device 4, and the external terminal device 100 calculates the displacement amount of the two displacement transmission plates along the telescopic direction of the telescopic rod 33 according to the resistance value, so as to obtain the fault displacement amount of the two tunnel segments along the telescopic direction of the telescopic rod 33. The graphene conductor layer 338 and the signal transmission line 339 are located on the side of the bearing sheet 337 away from the second elastic member 333.

[0056] The graphene conductor layer 338 is used in the graphene resistance sensing sheet 336, which has the advantages of good flexibility, high sensitivity and not easy to be interfered by electromagnetic waves.

[0057] The structure of the connecting piece 35 will be described in detail below, taking the connecting piece 35 located between the third elastic member 334 and the graphene resistance sensing sheet 336 as an example: as shown in Figure 5 , the connecting piece 35 comprises a mounting table 351, a positioning shaft 352 and a positioning sheet 353, the positioning shaft 352 and the positioning sheet 353 are respectively located on the opposite sides of the mounting table 351; as shown in Figure 6 , the mounting table 351 is connected with the second elastic member 333 through a bolt, and the end of the positioning sheet 353 away from the mounting table 351 is connected with the bearing sheet 337. The third elastic member 334 is sleeved on the positioning shaft 352 and supports the mounting table 351; the third elastic member 334 and the positioning shaft 352 are further connected through a bolt.

[0058] Further, as shown in Figure 5As shown, the first rod body 331 is provided with a containing groove 36, and the first elastic member 332, the second elastic member 333, the third elastic member 334 and the graphene resistance sensing sheet 336 are located in the containing groove 36; when the two tunnel segments do not produce relative displacement, the second rod body 335 is partially located in the containing groove 36, so that when the two tunnel segments produce relative displacement, the first rod body 331, the first elastic member 332, the second elastic member 333, the third elastic member 334 and the second rod body 335 all move in a straight line, thereby ensuring the detection accuracy and accuracy of the fault monitoring sensor 3.

[0059] As shown in Figure 10 The main control device 4 includes a fixing seat 41, a circuit board 42, a data acquisition interface 43 and a wireless signal transmitting device 44 which are arranged on the fixing seat 41; the data acquisition interface 43 and the wireless signal transmitting device 44 are electrically connected with the circuit board 42; the data acquisition interface 43 is also electrically connected with the fault monitoring sensor 3. The wireless signal transmitting device 44 is wirelessly connected with an external terminal device 100; after the circuit board 42 acquires the resistance change signal transmitted by the fault monitoring sensor 3 through the data acquisition interface 43, the circuit board 42 transmits the electric signal to the external terminal device 100 through the wireless signal transmitting device 44, and the external terminal device 100 is used to acquire the data output by the vibration monitoring sensor and analyze and calculate the data, so as to acquire the vibration condition of the tunnel segment on which the vibration monitoring sensor is installed.

[0060] The circuit board 42 is also provided with a battery 45, and the battery 45 is a high-capacity battery; the battery 45 is a rechargeable battery, and the battery 45 is provided with a charging port 46, so as to be connected with an external power supply through the charging port 46 and supply power to the circuit board 42.

[0061] As shown in Figure 1 and Figure 8 Each displacement transmission plate is provided with at least three vibration monitoring sensors 5, and the vibration monitoring sensors 5 are used to monitor the vibration acceleration information of the corresponding displacement transmission plate; the vibration monitoring sensors 5 are connected with the external terminal device 100 through the main control device 4, so as to acquire the vibration condition of the tunnel segment corresponding to the displacement transmission plate through the external terminal device 100. Specifically, the vibration monitoring sensors 5 are electrically connected with the data acquisition interface 43.

[0062] All vibration monitoring sensors 5 are perpendicular to each other, thereby monitoring the vibration of the displacement transfer plate along the three axes of X, Y, and Z. In a specific embodiment of the present invention, there are three vibration monitoring sensors 5, and the connection method of the three vibration monitoring sensors (first vibration monitoring sensor, second vibration monitoring sensor, and third vibration monitoring sensor) is shown in the figure: the three vibration monitoring sensors 5 are connected in pairs; the first vibration monitoring sensor is parallel to the displacement transfer plate to monitor the vibration of the displacement transfer plate along the Z axis; the adjacent two sides of the first vibration monitoring sensor are respectively connected to the second vibration monitoring sensor and the third vibration monitoring sensor; the second vibration monitoring sensor is used to monitor the vibration of the displacement transfer plate along the X axis, and the third vibration monitoring sensor is used to monitor the vibration of the displacement transfer plate along the Y axis.

[0063] like Figure 7 As shown, the vibration monitoring sensor 5 includes a fixed frame 51, a mass 52, and multiple sensing components 53. The mass 52 is located at the center of the fixed frame 51 and can vibrate relative to the fixed frame 51. The vibration direction of the mass 52 is perpendicular to the plane of the fixed frame 51. Multiple sensing components 53 are located within the fixed frame 51 and are evenly distributed along the circumference of the mass 52. The multiple sensing components 53 are respectively connected to the mass 52 and the fixed frame 51. The sensing components 53 are used to convert the vibration of the mass 52 into electrical signals. The sensing components 53 are electrically connected to the main control device 4.

[0064] like Figure 1 As shown, a positioning frame 6 is provided on the displacement transmission plate. This positioning frame 6 includes four positioning plates 61, which are connected end-to-end to form a closed loop structure. Three vibration monitoring sensors 5 are located within this positioning frame 6. The first vibration monitoring sensor is connected to the displacement transmission plate via a bracket. This bracket isolates the first vibration monitoring sensor from the displacement transmission plate, thereby providing displacement space for the vibration of its mass 52. Similarly, the second and third vibration monitoring sensors are connected to two adjacent positioning plates 61 via corresponding brackets, ensuring the stability of their connection to the displacement transmission plate. When the displacement transmission plate vibrates, the vibration monitoring sensor corresponding to its vibration direction will inevitably vibrate synchronously with it.

[0065] like Figure 7As shown, the inductive component 53 comprises a force transmission rod 531, an isostatic beam 532 and a graphene resistance inductive sheet 533; the force transmission rod 531 is connected with the mass block 52 and the isostatic beam 532 respectively; the force transmission rod 531 is not coplanar with the isostatic beam 532, and the plane where the force transmission rod 531 is located and the plane where the isostatic beam 532 is located are both perpendicular to the vibration direction of the mass block 52; that is, the force transmission rod 531 and the isostatic beam 532 are arranged in a high-low or low-high manner along the vibration direction of the mass block 52, so that the vibration force generated by the vibration of the mass block 52 can be effectively transmitted to the isostatic beam 532. One end of the isostatic beam 532 away from the force transmission rod 531 is connected with the fixed frame 51; the graphene resistance inductive sheet 533 is arranged on the isostatic beam 532 and is electrically connected with the master control device 4. When the displacement transmission plate vibrates, the fixed frame 51 vibrates, thereby driving the mass block 52 to vibrate, and the isostatic beam 532 and the graphene resistance inductive sheet 533 are deformed by the vibration of the mass block 52, thereby changing the resistance of the graphene resistance inductive sheet 533, and converting the acceleration physical quantity of the vibration of the displacement transmission plate into the resistance value of the graphene resistance inductive sheet 533. The resistance value is transmitted to the external terminal device 100 by the master control device 4, and the displacement amount of the displacement transmission plate along the vibration direction of the mass block 52 is calculated according to the resistance value, so that the vibration displacement amount of the tunnel segment is obtained. The isostatic beam can be metal or other materials.

[0066] Therefore, in the present application, the three vibration monitoring sensors 5 can simultaneously monitor the acceleration of the displacement transmission plate along the X-axis, Y-axis and Z-axis directions, and the vibration of the tunnel segment corresponding to the displacement transmission plate is reflected by the acceleration in the three-axis directions.

[0067] The structure of the graphene resistance inductive sheet 533 in the vibration monitoring sensor 5 is the same as that of the graphene resistance inductive sheet in the crack monitoring sensor 3, and the structure of the graphene resistance inductive sheet 533 in the vibration monitoring sensor 5 will not be described here.

[0068] In a specific embodiment of the present application, as shown in the figure, for the first vibration monitoring sensor, the distance between the isostatic beam 532 and the displacement transmission plate is greater than the distance between the force transmission rod 531 and the displacement transmission plate; for the second vibration monitoring sensor and the third vibration monitoring sensor, the distance between the isostatic beam 532 and the corresponding positioning plate is greater than the distance between the force transmission rod 531 and the corresponding positioning plate.

[0069] In an embodiment of the present application, the equal-strength beam 532 is an isosceles trapezoidal equal-strength beam 532, the load stress of which is equal everywhere, so that the strain force of each section of the graphene resistance sensing sheet 533 is the same, thereby improving the accuracy and sensitivity of the vibration monitoring sensor 5 in vibration monitoring. The upper base of the isosceles trapezoidal equal-strength beam 532 is connected with the force transmission rod 531, and the lower base is connected with the fixed frame 51; the mass block 52 is a spherical mass block.

[0070] As shown in Figure 7 , the equal-strength beam 532 and the force transmission rod 531 are provided with a receiving rod 7, the receiving rod 7 is perpendicular to the force transmission rod 531 and the equal-strength beam 532, and the two ends of the receiving rod 7 are connected with the force transmission rod 531 and the equal-strength beam 532 respectively, so as to support the force transmission rod 531 and the equal-strength beam 532.

[0071] As shown in Figure 7 , the intelligent tunnel segment monitoring system further comprises a plurality of fixing rods 8, the plurality of fixing rods 8 are respectively connected with the mass block 52 and are uniformly distributed along the circumferential direction of the mass block 52; as shown in Figure 9 , the inner side of the fixed frame 51 facing the mass block 52 is provided with a slot 511, one end of the fixing rod 8 is inserted into the slot 511, and the fixing rod 8 is provided with an elastic element 9 on both sides in the direction perpendicular to the plane where the fixed frame 51 is located, and the fixing rod 8 is connected with the fixed frame 51 through the elastic element 9 on both sides in the direction perpendicular to the plane where the fixed frame 51 is located, so that when the displacement transmission plate vibrates to drive the fixed frame 51 to vibrate, the mass block 52 can vibrate, and the vibration direction of the mass block 52 is the same as the vibration direction of the displacement transmission plate.

[0072] In an embodiment of the present application, the fixed frame 51 is a square fixed frame, the sensing assembly 53 is four, and is respectively connected with the middle points of the four edges of the fixed frame 51. One fixing rod 8 is arranged between each adjacent two sensing assemblies 53, and the fixing rod 8 is connected with the corner of the fixed frame 51.

[0073] As shown in Figure 11 , the intelligent tunnel segment monitoring system further comprises a protective shell 10, the protective shell 10 is buckled on the two displacement transmission plates, so as to contain the fault monitoring sensor 3, the vibration monitoring sensor 5, the positioning frame 6 and the master control device 4 on the two displacement transmission plates, thereby protecting the above-mentioned components. The protective shell 10 is fixedly connected with one of the two displacement transmission plates; the protective shell 10 is not connected with the other displacement transmission plate, so as to ensure that the displacement transmission plate and the protective shell 10 can relatively displace in position space. As shown in Figure 11As shown in the embodiment of the present application, the protective shell 10 is fixedly connected with the first displacement transmission plate 1, and the protective shell 10 is not connected with the second displacement transmission plate 2. Figure 11 In the actual use, when the adjacent two tunnel segments do not produce relative displacement, the second displacement transmission plate 2 is in contact with the protective shell 10.

[0074] The displacement transmission plate (the second displacement transmission plate 2) not connected with the protective shell 10 is symmetrically provided with two baffles 11, both of which are located in the protective shell 10 and have a gap between the two baffles 11 and the side wall of the protective shell 10; the gap can meet the relative displacement of the displacement transmission plate relative to the protective shell 10. Each component on the displacement transmission plate is located between the two baffles 11, so as to avoid the damage of each component on the displacement transmission plate caused by the collision of the protective shell 10 when the relative displacement between the protective shell 10 and the displacement transmission plate occurs.

[0075] As shown in the embodiment of the present application, the protective shell 10 is fixedly connected with the first displacement transmission plate 1, and the protective shell 10 is not connected with the second displacement transmission plate 2. Figure 12 As shown in the embodiment of the present application, the protective shell 10 is fixedly connected with the first displacement transmission plate 1, and the protective shell 10 is not connected with the second displacement transmission plate 2.

[0076]

[0077] As shown in the embodiment of the present application, the protective shell 10 is fixedly connected with the first displacement transmission plate 1, and the protective shell 10 is not connected with the second displacement transmission plate 2. Figure 1 As shown in the embodiment of the present application, the protective shell 10 is fixedly connected with the first displacement transmission plate 1, and the protective shell 10 is not connected with the second displacement transmission plate 2. Figure 2As shown, the external terminal device 100 includes at least one processor, a display screen, and a memory, and can further include a communications interface and a bus. The processor, the display screen, the memory, and the communications interface can communicate with each other through the bus. The display screen is configured to display a user guide interface preset in an initial setting mode. The communications interface can transmit information. The processor can call logical instructions in the memory to perform acquisition and analysis calculation on data signals output by the misalignment monitoring sensor and the vibration monitoring sensor.

[0078] In addition, the logical instructions in the memory described above can be implemented in the form of a software functional unit and sold or used as an independent product, and can be stored in a computer-readable storage medium.

[0079] The memory, as a computer-readable storage medium, can be configured to store software programs, computer executable programs, such as program instructions or modules corresponding to the method in the embodiments of the present disclosure. The processor performs function applications and data processing by running the software programs, instructions, or modules stored in the memory, that is, realizes acquisition and analysis calculation on data signals output by the misalignment monitoring sensor and the vibration monitoring sensor.

[0080] In summary, the present application provides an intelligent tunnel segment monitoring system, which comprises a displacement transmission plate arranged on each of two adjacent tunnel segments, a misalignment monitoring sensor, a vibration monitoring sensor, and a master control device arranged on the displacement transmission plate, and a connection between the master control device and an external terminal device. The graphene sensing resistor sheet has good corrosion resistance, is not easily affected by electromagnetic interference, has high sensitivity, and has light weight. The displacement physical quantity and the vibration acceleration physical quantity of the misaligned tunnel segment are converted into the resistance value of the graphene sensing resistor sheet, and the data are analyzed and calculated by the external terminal device, so that the misalignment and vibration of the tunnel segment are known.

[0081] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An intelligent tunnel segment monitoring system, characterized in that: include: A first displacement transmission plate (1), a second displacement transmission plate (2), a misalignment monitoring sensor (3), a plurality of vibration monitoring sensors (5), a main control device (4), a protective shell (10), and a plurality of tunnel segments (200); A vibration monitoring sensor (5) is installed on each of the first displacement transmission plate (1) and the second displacement transmission plate (2); The first displacement transfer plate (1) and the second displacement transfer plate (2) are adjacent to and spaced apart from each other on two adjacent tunnel segments (200), and any one of the first displacement transfer plate (1) and the second displacement transfer plate (2) is connected to the protective shell (10); The misalignment monitoring sensor (3) is connected to the first displacement transmission plate (1) and the second displacement transmission plate (2), respectively, and is connected to an external terminal device (100) via a main control device (4); The vibration monitoring sensor (5) is connected to the external terminal device (100) via the main control device (4), and a plurality of vibration monitoring sensors (5) are vertically connected to each other in pairs; It also includes a positioning frame (6), which is used to fix the vibration monitoring sensor (5) therein and is respectively arranged on the first displacement transmission plate (1) and the second displacement transmission plate (2), and includes four positioning plates (61), and the four positioning plates (61) form a closed loop structure; The misalignment monitoring sensor (3) is used to obtain the displacement physical quantity of the tunnel segment (200), and comprises a first base (31), a transmission rod (32), three telescopic rods (33) and a second base (34) connected in sequence; the first base (31) and the second base (34) are respectively arranged on two displacement transmission plates; A telescopic rod (33) is connected to the second base (34), the transmission rod is connected to the telescopic rod (33), and the telescopic directions of the three telescopic rods (33) are perpendicular to each other; The telescopic rod (33) is used to convert the relative displacement into an electrical signal when a displacement in the same direction as the telescopic direction is generated between the first displacement transmission plate (1) and the second displacement transmission plate (2); The vibration monitoring sensor (5) is used to monitor vibration acceleration information, and comprises: a fixed frame (51), a mass block (52), and a plurality of sensing components (53), wherein the mass block (52) is arranged at the center of the fixed frame (51), the mass block (52) is connected to the fixed frame (51) via the sensing components (53), and the sensing components (53) are evenly distributed along the circumference of the mass block (52); The telescopic rod (33) comprises a first rod body (331), a first elastic member (332), a second elastic member (333), a third elastic member (334) and a second rod body (335) which are connected in sequence; a first graphene resistance sensing sheet (336) is further connected between the first elastic member (332) and the third elastic member (334); the elastic expansion and contraction directions of the first graphene resistance sensing sheet (336) and the second elastic member (333) are parallel; the first graphene resistance sensing sheet (336) is electrically connected to the main control device (4); The first rod body (331) is provided with a receiving groove (36), and the first elastic member (332), the second elastic member (333), the third elastic member (334) and the first graphene resistance sensing sheet (336) are all installed in the receiving groove (36); The sensing component (53) comprises a force transmission rod (531), an equal strength beam (532) and a second graphene resistance sensing sheet (533); the force transmission rod (531) is connected to the mass block (52) and the equal strength beam (532) respectively; the force transmission rod (531) and the equal strength beam (532) are not coplanar, and the plane where the force transmission rod (531) and the plane where the equal strength beam (532) are located are both perpendicular to the vibration direction of the mass block (52); the end of the equal strength beam (532) away from the force transmission rod (531) is connected to the fixed frame (51); the second graphene resistance sensing sheet (533) is arranged on the equal strength beam (532) and is electrically connected to the main control device (4); The first graphene resistance sensing sheet (336) in the telescopic rod and the second graphene resistance sensing sheet (533) in the sensing component both include a carrier sheet (337), a graphene conductor layer (338) and a signal transmission line (339); the graphene conductor layer (338) is arranged in the carrier sheet (337); and the signal transmission line (339) is electrically connected to the graphene conductor layer (338) and the main control device (4), respectively.

2. The intelligent tunnel segment monitoring system according to claim 1, characterized in that: The main control device (4) comprises a fixing seat (41), a circuit substrate (42) arranged on the fixing seat (41), a data acquisition interface (43) and a wireless signal transmitting device (44); the data acquisition interface (43) and the wireless signal transmitting device (44) are both electrically connected to the circuit substrate (42).

3. The intelligent tunnel segment monitoring system according to claim 1, characterized in that: The invention also includes a plurality of fixing rods (8), the fixing rods (8) being respectively connected to the mass blocks (52) and evenly distributed along the circumference of the mass blocks (52); a slot (511) being provided on the inner side surface of the fixing frame (51), one end of the fixing rod (8) being inserted into the slot (511); elastic members (9) being provided on both sides of the fixing rod (8) in a direction perpendicular to the plane where the fixing frame (51) is located, and the elastic members (9) being connected to the fixing frame (51).

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