Tunnel seismic wave advanced geological exploration equipment

Abstract

The application relates to the technical field of geological exploration, and discloses a tunnel seismic wave advanced geological exploration equipment which comprises a central base, at least twelve CGA units arranged in a ring on the outer wall of the central base, an array central controller in communication connection with the at least twelve CGA units, and an interface module and a deployment unit for connecting the CGA units with the central base. The CGA unit comprises an equipment shell, a mover driving assembly arranged in the equipment shell and used for generating controllable mechanical vibration, and an internal sensor rigidly mounted on the mover driving assembly of the equipment shell. The CGA unit is internally integrated with a high-fidelity mover driving assembly and a high-precision motion feedback sensor, and a high-quality detection waveform corrected through harmonic distortion is emitted from the source by using real-time closed-loop control of an electronic control panel, which is much better than a traditional rear-end filtering compensation method.

Description

Technical Field

[0001] This invention relates to the field of geological exploration technology, specifically to a tunnel seismic wave advanced geological exploration device. Background Technology

[0002] In underground engineering projects such as tunnel excavation and mineral exploration, advanced geological forecasting is a key link in ensuring construction safety and improving project efficiency.

[0003] Traditional controllable seismic sources, such as hydraulic seismic sources or large electromagnetic seismic sources, suffer from problems such as large size, high energy consumption, poor mobility, and a tendency to generate severe harmonic distortion in the low-frequency band.

[0004] To improve efficiency, existing technologies (such as CN120028857A) have proposed a scheme of using multiple seismic sources to excite in groups. However, this mainly solves the problem of avoiding mutual interference, but does not achieve coordinated energy focusing and intelligent adaptation.

[0005] Other technologies (such as CN112505747A and CN117647835A) focus on filtering and distortion correction of the acquired data at the signal processing backend. This is a passive and lagging compensation that cannot fundamentally improve the quality of the source signal and its adaptability to complex geological conditions.

[0006] Therefore, there is a need in this field for a completely new detection device and system that starts from the source, has high mobility, high signal quality and environmental adaptability. Summary of the Invention

[0007] This invention provides a tunnel seismic wave advanced geological detection device, which solves the problems mentioned in the background art.

[0008] This invention provides the following technical solution: a tunnel seismic wave advanced geological detection device:

[0009] A central base;

[0010] At least twelve CGA units are arranged in a ring on the outer wall of the central base, and the CGA units are connected to the central base through deployment units and interface modules;

[0011] An array central controller communicatively connected to the at least twelve CGA units;

[0012] The CGA unit includes:

[0013] A device casing;

[0014] A mover drive assembly disposed within the housing of the device is used to generate controllable mechanical vibration;

[0015] An internal sensor is rigidly mounted on the mover drive assembly of the device housing for real-time measurement of the motion state of the mover drive assembly.

[0016] An electronic control board, the edge computing unit of which is configured to perform closed-loop control of the mover drive assembly based on real-time feedback from the built-in sensors to correct its output waveform;

[0017] Furthermore, the array central controller is configured to send co-excitation commands to the at least twelve CGA units to synthesize seismic wavefronts with predetermined directions and energy distributions.

[0018] As a preferred embodiment of the present invention, the central base includes an annular body, a fixing structure is fixedly assembled on the inner wall of the annular body near the axis, and a plurality of mounting grooves are annularly opened on the outer wall of the annular body away from the axis; the equipment is fixed to the tunnel face or work trolley in the tunnel by the fixing structure set on the inner wall of the annular body.

[0019] As a preferred technical solution of the present invention, the deployment unit includes a support plate, a first rotating shaft is rotatably connected to the side of the support plate near the central base axis, a rotating groove is formed on the outer wall of the side of the support plate away from the central base axis, the telescopic end of an electric push rod is rotatably connected to the inner wall of the rotating groove, and an mounting plate is fixedly assembled on the end of the support plate away from the first rotating shaft.

[0020] The end of the electric push rod away from the support plate is rotatably connected to the inner wall of the mounting groove, and the first rotating shaft is fixedly assembled to the outer wall of the annular body.

[0021] As a preferred embodiment of the present invention, the interface module includes an interface base and a plurality of synchronous locking sockets arranged in a ring along the interface base. A connector sub-socket is fixedly snapped onto the top of the synchronous locking socket on the side away from the deployment unit. The synchronous locking socket includes an inner sleeve, a locking ring that can slide up and down, and a movable limiting steel ball, which are used to realize the rapid mechanical locking and electrical connection between the synchronous locking socket and the connector sub-socket.

[0022] As a preferred embodiment of the present invention, the CGA unit includes a device housing, an electronic control board is fixedly mounted on the bottom inner wall of the device housing, a mover drive assembly is disposed on the middle inner wall of the device housing, a drive mechanism for driving the mover drive assembly to move is disposed on the outer wall of the mover drive assembly, and a coupling head is fixedly mounted on the top of the mover drive assembly.

[0023] The mover drive assembly in the CGA unit includes a fixed stator housing with a drive coil fixedly mounted on its inner wall; and a reciprocating vibrator column with a permanent magnet in a Halbach array configuration mounted on it; the vibrator column is limited and guided by at least two limiting guide plates.

[0024] As a preferred embodiment of the present invention, the array central controller is further configured to: when any CGA unit is detected to have a fault or poor coupling, dynamically recalculate and issue new cooperative excitation commands to the remaining normal CGA units to compensate for the impact of the fault on the synthesized wavefront and achieve wavefront self-healing.

[0025] As a preferred embodiment of the present invention, the array central controller is further configured to: calculate and issue a collaborative excitation command that can form an energy minimum region in the direction of the preset protection area, so as to achieve active acoustic shielding.

[0026] As a preferred embodiment of the present invention, the array central controller further includes a cognitive interaction prediction engine, which is configured to: fuse geological data fed back from all CGA units and digital twin model data of engineering equipment input from the outside, to predict the interaction between the engineering equipment and the geological body in front, and output decision support information including construction risk level and equipment operation optimization parameters.

[0027] As a preferred technical solution of the present invention, the geological data processing in the cognitive interactive prediction engine adopts the synchronous squeezed wavelet transform (SSWT) algorithm.

[0028] As a preferred embodiment of the present invention, the cognitive interaction prediction engine is further configured to use the harmonic fingerprint information analyzed by the SSWT algorithm as the basis for inverting rock mass mechanics parameters.

[0029] The present invention has the following beneficial effects:

[0030] 1. The tunnel seismic wave advanced geological detection equipment, through the "CGA unit", integrates a high-fidelity mover drive assembly and a high-precision motion feedback sensor. Utilizing the real-time closed-loop control of the electronic control board, it emits high-quality detection waveforms with harmonic distortion correction from the source, which is superior to traditional back-end filtering compensation methods.

[0031] Each CGA unit has adaptive pressure coupling capability, which can independently adjust and ensure the best contact state according to the actual situation of the working face, solving the problem of signal loss caused by poor coupling in traditional equipment.

[0032] 2. This tunnel seismic wave front geological exploration equipment, through the coordinated control of multiple CGA units by an array central controller, can actively shape the seismic wavefront, focusing energy directionally on the target area, thereby greatly improving the detection depth and signal-to-noise ratio. Simultaneously, it can also create an energy zero point in a specific direction, actively avoiding interference with surrounding sensitive structures;

[0033] When a single CGA unit fails or malfunctions, the remaining units will automatically adjust their operating parameters to compensate for the loss, ensuring the stability and data quality of the entire detection mission.

[0034] A "cognitive interaction prediction engine" has been introduced. This means that the output data no longer just provides a static geological map, but integrates high-precision geological exploration data with digital twin models of engineering equipment such as TBMs. Through the simulation of "rock-machine" interaction, the system can predict the risks (such as machine jamming and water inrush probability) and efficiency of the construction ahead, and recommend the best tunneling parameters. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the complete state structure of the present invention;

[0036] Figure 2 This is a schematic diagram of the reverse side structure of the present invention;

[0037] Figure 3 This is a schematic diagram of the central base structure of the present invention;

[0038] Figure 4 This is a schematic diagram of the installation structure of the interface module and deployment unit of the present invention;

[0039] Figure 5 This is a schematic diagram of the installation structure of the interface module and CGA unit of the present invention;

[0040] Figure 6 This is a schematic diagram of the interface module structure of the present invention;

[0041] Figure 7 This is a schematic diagram of the CGA unit structure of the present invention;

[0042] Figure 8 This is a schematic diagram of the drive mechanism structure of the present invention;

[0043] Figure 9 This is a schematic diagram of the limiting guide plate structure of the present invention;

[0044] Figure 10 This is a schematic diagram of the permanent magnet structure of the present invention;

[0045] Figure 11 This is a block diagram of the cognitive interaction prediction engine in the array's central controller.

[0046] In the diagram: 1. Central base; 2. Deployment unit; 3. Interface module; 4. CGA unit;

[0047] 101. Ring-shaped main body; 102. Fixing structure; 103. Mounting groove;

[0048] 201. Support plate; 202. First rotating shaft; 203. Rotary groove; 204. Electric push rod; 205. Mounting plate;

[0049] 31. Interface base; 32. Synchronous locking socket; 33. Connector sub-socket;

[0050] 321. Inner sleeve; 322. Inner socket; 323. Snap ring; 324. Limit spring; 325. Locking ring; 326. Limit block; 327. Snap groove; 328. Limit ball; 329. Retaining ring;

[0051] 331. Plug housing; 332. Inner pin; 333. Locking groove; 334. Chamfer;

[0052] 41. Equipment housing; 42. Electronic control board; 43. Drive mechanism; 44. Mover drive assembly; 45. Coupler head;

[0053] 431. Miniature motor; 432. Lead screw; 433. Nut block; 434. Thrust sleeve; 435. Miniature pressure sensor; 436. Limit arm;

[0054] 441. Stator housing; 442. Built-in sensor; 443. Drive coil; 444. Limiting guide plate; 445. Vibration source column; 446. Permanent magnet; 447. Carbon fiber binding layer;

[0055] 701. Collaborative wavefront shaping module; 702. Multi-agent data fusion module; 703. Super-resolution inversion module; 704. 4D construction interactive simulation module; 705. Decision support generation module. Detailed Implementation

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

[0057] Example 1: Physical Structure and Deployment of Equipment and Systems

[0058] Please see Figure 1 - Figure 11This invention provides a tunnel seismic wave advanced geological detection device and a system comprised thereof. At the tunnel construction site, the entire device is deployed in front of the tunnel face to be detected.

[0059] A tunnel seismic wave advanced geological exploration device, comprising a central base 1;

[0060] At least twelve CGA units 4 are arranged in a ring on the outer wall of the central base 1. The CGA units 4 are connected to the central base 1 through deployment units 2 and interface modules 3.

[0061] A central controller for an array that communicates with at least twelve CGA units 4;

[0062] CGA unit 4 includes:

[0063] A device casing 41;

[0064] A mover drive assembly 44, located within the device housing 41, is used to generate controllable mechanical vibration;

[0065] An internal sensor 442 is rigidly mounted on the mover drive assembly 44 of the device housing 41 for real-time measurement of the motion state of the mover drive assembly 44.

[0066] An electronic control board 42, whose internal edge computing unit is configured to perform closed-loop control of the mover drive assembly 44 based on real-time feedback from built-in sensors 442 to correct its output waveform;

[0067] Furthermore, the array central controller is configured to send co-excitation commands to at least twelve CGA units 4 to synthesize seismic wavefronts with predetermined directions and energy distributions.

[0068] In a preferred embodiment: the central base 1 includes an annular body 101, a fixing structure 102 is fixedly assembled on the inner wall of the annular body 101 near the axis, and a plurality of mounting grooves 103 are formed on the outer wall of the annular body 101 away from the axis; the equipment is fixed to the tunnel face 800 or the work trolley in the tunnel by the fixing structure 102 set on the inner wall of the annular body 101.

[0069] In a preferred embodiment: the deployment unit 2 includes a support plate 201, a first rotating shaft 202 is rotatably connected to the side of the support plate 201 near the axis of the central base 1, a rotating groove 203 is formed on the outer wall of the side of the support plate 201 away from the axis of the central base 1, the telescopic end of an electric push rod 204 is rotatably connected to the inner wall of the rotating groove 203, and an mounting plate 205 is fixedly assembled to the end of the support plate 201 away from the first rotating shaft 202;

[0070] The end of the electric push rod 204 away from the support plate 201 is rotatably connected to the inner wall of the mounting groove 103, and the first rotating shaft 202 is fixedly assembled with the outer wall of the annular body 101.

[0071] In the above structure, the deployment unit 2 is the actuator that enables precise contact between the CGA unit 4 and the tunnel face. The support plate 201 and the annular body 101 are connected by the first rotating shaft 202, which forms a support point. The electric push rod 204 uses the rotating structure inside the mounting groove 103 as a support point to push the support plate 201, thereby causing the end of the support plate 201 away from the first rotating shaft 202 to rotate. This causes the interface module 3 and the CGA unit 4 located at the mounting plate 205 to come into contact with the tunnel face, thus achieving uniform contact between several CGA units 4 and the tunnel face, thereby ensuring the correct installation between the CGA unit 4 and the tunnel face.

[0072] In a preferred embodiment: the interface module 3 includes an interface base 31 and a plurality of synchronous locking sockets 32 arranged in a ring along the interface base 31. A connector sub-socket 33 is fixedly snapped onto the top of the synchronous locking socket 32 ​​on the side away from the deployment unit 2. The synchronous locking socket 32 ​​includes an inner sleeve 321, a locking ring 325 that can slide up and down, and a movable limiting steel ball 328, which are used to realize the rapid mechanical locking and electrical connection between the synchronous locking socket 32 ​​and the connector sub-socket 33.

[0073] Specifically, the interface module 3 includes an interface base 31 and a plurality of synchronous locking sockets 32 arranged in a ring along the interface base 31. A connector sub-socket 33 is fixedly snapped onto the top of the synchronous locking socket 32 ​​on the side away from the deployment unit 2.

[0074] A number of synchronous locking sockets 32 are fixedly assembled with the interface base 31. The synchronous locking socket 32 ​​includes an inner sleeve 321. An inner socket 322 is fixedly assembled on the inner wall of the inner sleeve 321. A retaining ring 323 is fixedly sleeved on the outer wall of the middle part of the inner sleeve 321. A limiting spring 324 that engages with the inner sleeve 321 is provided at the top of the retaining ring 323. A locking ring 325 is sleeved on the top of the inner sleeve 321. A limiting block 326 is fixedly assembled on the inner wall of the top of the locking ring 325. A number of slots 327 are circumferentially opened on the outer wall of the top of the inner sleeve 321. A limiting steel ball 328 is provided on the inner wall of the slot 327. A fixing ring 329 is fixedly sleeved on the top of the inner sleeve 321.

[0075] The bottom of the limiting block 326 abuts against the top of the locking ring 325, the top of the limiting block 326 abuts against the bottom of the fixing ring 329, and the locking ring 325 abuts against the limiting block 326, the position of the limiting block 326 corresponds to that of the limiting ball 328.

[0076] The connector sub-base 33 includes a plug housing 331, an inner pin 332 is fixedly mounted on the inner wall of the plug housing 331, a locking groove 333 is provided on the bottom outer wall of the plug housing 331, and a chamfer 334 is provided on the bottom outer edge of the plug housing 331.

[0077] The connector sub-socket 33 and the synchronous locking socket 32 ​​are electrically connected by inserting the inner pin 332 into the inner socket 322. When the inner pin 332 and the inner socket 322 are inserted, the limiting steel ball 328 is located on the inner wall of the locking groove 333.

[0078] In the above structure, the limiting block 326 abuts against the limiting steel ball 328, causing the limiting steel ball 328 to engage with the locking groove 333, thereby fixing the connector sub-base 33 and the synchronous locking socket 32. By driving the limiting block 326 downward with the locking ring 325, the abutment of the limiting block 326 against the limiting steel ball 328 is canceled. As the connector sub-base 33 and the synchronous locking socket 32 ​​move away from each other, the abutment between the limiting steel ball 328 and the locking groove 333 can be canceled, thus enabling a quick connection between the connector sub-base 33 and the synchronous locking socket 32. The interface base 31 connects several locking rings 325, enabling several connector sub-bases 33 to operate synchronously.

[0079] Several connector sub-sockets 33 are fixed to the CGA unit 4 and electrically connected.

[0080] In a preferred embodiment: the CGA unit 4 includes a device housing 41, an electronic control board 42 is fixedly mounted on the bottom inner wall of the device housing 41, a mover drive assembly 44 is disposed on the middle inner wall of the device housing 41, a drive mechanism 43 for driving the mover drive assembly 44 to move is disposed on the outer wall of the mover drive assembly 44, and a coupling head 45 is fixedly mounted on the top of the mover drive assembly 44.

[0081] CGA Unit 4 is a highly modular intelligent unit that integrates sensing, computing, communication and execution capabilities;

[0082] The electronic control board 42 contains a main control circuit board and a sensing / driving circuit board. It is the physical carrier for realizing edge computing and control, and is responsible for receiving external instructions, running local algorithms, and driving the assembly movement.

[0083] One of its core functions is to suppress distortion of the source signal.

[0084] The method is as follows: First, the transfer function model G(s) of the mover drive assembly 44 is established through pre-vibration calibration.

[0085] During actual operation, the processor in the electronic control board 42 performs a fast Fourier transform (FFT) on the actual acceleration signal a(t) fed back by the built-in sensor 442 to obtain its spectrum A(ω).

[0086] By analyzing the spectrum A(ω), the harmonic components A(nω0) (n=2, 3, ...) other than the fundamental frequency ω0 are identified.

[0087] Subsequently, based on the inverse function G of the established transfer function G(s), -1 (s) takes each harmonic component as the output and solves in reverse the equivalent input voltage U_h(nω0) that can generate these harmonics.

[0088] Finally, when generating the drive signal for the next cycle, these equivalent harmonic input voltages are subtracted from the ideal fundamental drive signal U(ω0), i.e., U_drive(t) = IFFT[U(ω0) - ΣU_h(nω0)], thereby generating a pre-distorted drive signal, so that the mechanical vibration of the final output of the mover drive assembly 44 is close to a pure sine wave.

[0089] Drive mechanism 43 is used to realize closed-loop pressure control between coupling head 45 and working face;

[0090] The drive mechanism 43 includes a micro motor 431, the output shaft of the micro motor 431 is fixedly mounted with a lead screw 432, the outer wall of the lead screw 432 is threaded with two sets of nut blocks 433, a thrust sleeve 434 is provided between the two sets of nut blocks 433 and sleeved with the lead screw 432, a micro pressure sensor 435 is provided at the bottom of the thrust sleeve 434, and limit arms 436 for limiting the nut blocks 433 are fixedly mounted on the outer walls of both sides of the thrust sleeve 434.

[0091] The thrust sleeve 434 is fixedly assembled to the outer wall of the mover drive assembly 44 via the limiting arm 436;

[0092] The mover drive assembly 44 in CGA unit 4 includes a fixed stator housing 441, on which a drive coil 443 is fixedly mounted; and a source column 445 capable of axial reciprocating motion, on which a permanent magnet 446 in a Halbach array configuration is mounted; the source column 445 is limited and guided by at least two limit guide plates 444.

[0093] Specifically, the mover drive assembly 44 includes a stator housing 441, a built-in sensor 442 fixedly mounted on the bottom of the inner wall of the stator housing 441, a number of drive coils 443 fixedly mounted on the inner wall of the stator housing 441, two sets of fixedly mounted limiting guide plates 444 arranged on the upper and lower sides of the inner wall of the stator housing 441, a vibrating source column 445 slidably sleeved on the inner wall of the limiting guide plate 444, a number of permanent magnets 446 with a Halbach array configuration fixedly mounted on the outer wall of the vibrating source column 445, and a carbon fiber binding layer 447 covering the outer wall of the permanent magnets 446.

[0094] The positions of the built-in sensor 442 and the seismic source column 445 correspond to each other.

[0095] The stator housing 441 is mainly composed of a TC4 titanium alloy skeleton, and the outer wall of the permanent magnet 446 is covered with a carbon fiber binding layer 447 to resist the centrifugal force during high-frequency vibration. The built-in sensor 442 is used to measure the real-time motion state of the source column 445. The built-in sensor 442 can use a MEMS accelerometer or a displacement sensor target.

[0096] In the above structure, the operation control and data acquisition of CGA unit 4 are realized through the equipment housing 41, and the second contact force between the moving head 45 and the working face is controlled by the moving head drive assembly 44 driven by the driving mechanism 43. The vibration source between the coupling head 45 and the working face is excited by the moving head drive assembly 44, thereby radiating seismic waves.

[0097] Specifically, the micro motor 431 drives the lead screw 432 to rotate, and the limiting arm 436 limits the nut block 433. The two sets of nut blocks 433 drive the mover drive assembly 44 to move up and down through the micro pressure sensor 435 and the thrust sleeve 434, thereby causing the mover drive assembly 44 to adjust the pressure between the coupling head 45 and the working face. By placing the micro pressure sensor 435 between the nut block 433 and the thrust sleeve 434, the pressure data applied by the drive mechanism 43 to the mover drive assembly 44 can be collected.

[0098] After the positions of several CGA units 4 and the working face are adjusted, the drive assembly 44 is controlled to run. The carbon fiber binding layer 447 is constrained in the axial forward and backward movement direction by the limit guide plate 444 to eliminate the sway and wobbling of the carbon fiber binding layer 447.

[0099] By using magnetic excitation between several drive coils 443 and several permanent magnets 446, millimeter-level reciprocating strokes can be achieved to drive sufficient air / rock at low frequencies up to 2Hz to generate effective acoustic energy. The driving force of this structure is proportional to the input current, and the control is simple and direct, which is beneficial for achieving harmonic distortion suppression.

[0100] In a preferred embodiment, the array central controller is further configured to dynamically recalculate and issue new co-excitation commands to the remaining normal CGA units 4 when a fault or poor coupling is detected in any CGA unit 4, in order to compensate for the impact of the fault on the synthesized wavefront and achieve wavefront self-healing.

[0101] In a preferred embodiment, the array central controller is further configured to calculate and issue a collaborative excitation command that can form an energy minimum region in the direction of the protection region, based on a preset protection region, so as to achieve active acoustic shielding.

[0102] In a preferred embodiment, the array central controller also includes a cognitive interaction prediction engine configured to: fuse geological data fed back from all CGA units 4 and externally input digital twin model data of engineering equipment to predict the interaction between the engineering equipment and the geological body in front, and output decision support information including construction risk level and equipment operation optimization parameters.

[0103] In a preferred embodiment: the geological data processing in the cognitive interactive prediction engine employs the Simultaneous Squeezed Wavelet Transform (SSWT) algorithm.

[0104] In a preferred embodiment, the cognitive interactive prediction engine is also configured to use harmonic fingerprint information analyzed by the SSWT algorithm as the basis for inverting rock mass mechanics parameters.

[0105] Example 2: Collaborative Working Methods and Cognitive Interaction Functions of the System

[0106] This embodiment, based on Embodiment 1, further defines the collaborative operation method of the tunnel seismic wave advanced geological collaborative detection system constructed by this device. The system is uniformly scheduled by the array central controller (ACC).

[0107] The workflow of the cognitive interaction prediction engine inside the array's central controller is as follows:

[0108] Collaborative wavefront shaping module 701: The array central controller, as the master node of the multi-agent system, calculates the optimal combination of phase, frequency and amplitude for the collaborative excitation of 12 CGA units 4 based on the detection target (such as focusing energy 80 meters in front) and environmental constraints (such as sensitive structures to be avoided). That is, it solves a set of excitation signals sᵢ(t) = Aᵢsin(ωt+φᵢ), i=1,...,12, so as to maximize the energy of the synthesized wavefield at the target point (x, y, z).

[0109] The module also has a wavefront self-healing function, which monitors the health status reported by each CGA unit 4 in real time through a high-speed communication network (measured by the built-in sensor 442).

[0110] When a fault or poor coupling is detected in any CGA unit 4j (such as its actual output amplitude A'), j Much smaller than the command amplitude A j When the fault occurs, the ACC will immediately reset or reduce the weight of the CGA unit 4j, and dynamically recalculate and send a new set of phase φ'ᵢ and amplitude A'ᵢ to the remaining normal CGA units 4 to compensate for the impact of the fault on the synthesized wavefront, and complete the refocusing of the beam within milliseconds.

[0111] Multi-agent data fusion module 702: The array central controller collects the preliminary processed reflection signal data uploaded by all 12 CGA units 4, performs precise time synchronization and spatial position correction, and fuses them into a global seismic dataset with high signal-to-noise ratio and high spatial sampling rate.

[0112] Super-resolution inversion module 703: This module uses the Synchronous Squeeze Wavelet Transform (SSWT) algorithm to process the fused dataset.

[0113] SSWT obtains a high-resolution time-frequency distribution map by rearranging and compressing the wavelet transform coefficients in the frequency direction. Its core calculation formula is as follows:

[0114] T s (ω) l b) = (Δω) -1 Σa k W s (a) k b) a k -3 / 2 Δa k W s These are wavelet coefficients.

[0115] The system achieves precise separation of reflected waves that are extremely close in time and identifies unique harmonic fingerprints generated by the nonlinear responses of different lithologies. These harmonic fingerprints are used as additional constraints for inverting rock mass mechanical parameters (such as elastic modulus and fracture density), thereby improving the accuracy of the inversion results.

[0116] 4D Construction Interactive Simulation Module 704: This module couples the inverted 3D geological model (including rock mechanics parameters) with the externally input TBM (tunnel boring machine) digital twin model.

[0117] The digital twin model includes the TBM's geometric parameters, tool head design, propulsion system model, and tool wear model.

[0118] In a finite element or discrete element numerical simulation environment, this module simulates the "rock-machine" interaction process between the TBM cutterhead and the three-dimensional geological model in front, thereby predicting the performance of the TBM under different tunneling parameters (torque, speed, thrust).

[0119] Decision Support Generation Module 705: Based on the simulation results, this module ultimately generates and visualizes a "Forward Tunneling Decision Dashboard" for engineers, which includes, but is not limited to: risk probability curves of encountering geological disasters such as machine jamming, water inrush, and rock bursts within 50 meters ahead; recommended combinations of TBM operating parameters to achieve the highest tunneling efficiency; and predicted tool wear rates and recommended maintenance cycles.

[0120] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0121] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tunnel seismic wave advanced geological exploration device, characterized in that: a central base (1); at least twelve CGA units (4) arranged annularly on the outer wall of the central base (1), the CGA units (4) being connected with the central base (1) through a deployment unit (2) and an interface module (3); an array central controller in communication connection with the at least twelve CGA units (4); wherein the CGA unit (4) comprises: a device shell (41); a mover driving assembly (44) arranged in the device shell (41) for generating controllable mechanical vibration; an internal sensor (442) rigidly mounted on the mover driving assembly (44) of the device shell (41) for real-time measurement of the motion state of the mover driving assembly (44); an electronic control board (42), the edge computing unit inside which is configured to correct the output waveform of the mover driving assembly (44) through closed-loop control according to the real-time feedback of the internal sensor (442); and the array central controller is configured to send a cooperative excitation instruction to the at least twelve CGA units (4) to synthesize a seismic wave front with a predetermined direction and energy distribution; the deployment unit (2) comprises a support plate (201), the support plate (201) is rotationally connected with a first rotating shaft (202) near the side of the central base (1) shaft, a rotating groove (203) is formed in the outer wall of the side of the central base (1) shaft away from the shaft, the telescopic end of an electric push rod (204) is rotationally connected with the inner wall of the rotating groove (203), and a mounting plate (205) is fixedly assembled on the end of the support plate (201) away from the first rotating shaft (202); the end of the electric push rod (204) away from the support plate (201) is rotationally connected with the inner wall of the mounting groove (103), and the first rotating shaft (202) is fixedly assembled with the outer wall of the annular body (101); the interface module (3) comprises an interface base (31) and a plurality of synchronous locking sockets (32) arranged annularly along the interface base (31), a connector sub-base (33) is fixedly connected on the top of the side of the synchronous locking socket (32) away from the deployment unit (2); the synchronous locking socket (32) comprises an inner sleeve (321), a locking ring (325) that can slide up and down, and a movable limiting steel ball (328), for realizing quick mechanical locking and electrical connection of the synchronous locking socket (32) and the connector sub-base (33). The central base (1) comprises an annular body (101), the annular body (101) is fixedly assembled with a fixing structure (102) on the inner wall of the side near the shaft, and a plurality of mounting grooves (103) are annularly formed in the outer wall of the side of the annular body (101) away from the shaft; the device is fixed with the tunnel face or the operation trolley in the tunnel through the fixing structure (102) arranged on the inner wall of the annular body (101). ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2. The tunnel seismic wave advanced geological exploration equipment according to claim 1, characterized in that: ​ 3. The tunnel seismic wave advanced geological exploration equipment according to claim 1, characterized in that: The CGA unit (4) includes a device housing (41), an electronic control board (42) is fixedly mounted on the bottom inner wall of the device housing (41), a mover drive assembly (44) is disposed on the middle inner wall of the device housing (41), a drive mechanism (43) for driving the mover drive assembly (44) to move is disposed on the outer wall of the mover drive assembly (44), and a coupling head (45) is fixedly mounted on the top of the mover drive assembly (44). The mover drive assembly (44) in the CGA unit (4) includes a fixed stator housing (441) with a drive coil (443) fixedly mounted on its inner wall; and a reciprocating source column (445) with a permanent magnet (446) in a Halbach array configuration mounted on it; the source column (445) is limited and guided by at least two limit guide plates (444).

4. The tunnel seismic wave advanced geological exploration equipment according to claim 1, characterized in that: The array central controller is also configured to: when any CGA unit (4) is detected to have a fault or poor coupling, dynamically recalculate and issue new cooperative excitation commands to the remaining normal CGA units (4) to compensate for the impact of the fault on the synthesized wavefront and achieve wavefront self-healing.

5. The tunnel seismic wave advanced geological exploration equipment according to claim 1, characterized in that: The array central controller is also configured to: calculate and issue a collaborative excitation command that can form an energy minimum region in the direction of the preset protection area, so as to achieve active acoustic shielding.

6. The tunnel seismic wave advanced geological exploration equipment according to claim 1, characterized in that: The array central controller also includes a cognitive interaction prediction engine, which is configured to: fuse geological data fed back from all CGA units (4) and externally input digital twin model data of engineering equipment to predict the interaction between the engineering equipment and the geological body in front, and output decision support information including construction risk level and equipment operation optimization parameters.

7. The tunnel seismic wave advanced geological exploration equipment according to claim 6, characterized in that: The geological data processing in the cognitive interactive prediction engine employs the Simultaneous Squeezed Wavelet Transform (SSWT) algorithm.

8. The tunnel seismic wave advanced geological exploration equipment according to claim 7, characterized in that: The cognitive interaction prediction engine is also configured to use harmonic fingerprint information analyzed by the SSWT algorithm as the basis for inverting rock mass mechanics parameters.

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