120 results about "QuakeFinder" patented technology

The invention relates to the technical field of information processing, in particular to a mine microseism positioning control system and method.The mine microseism positioning control method comprises the steps that microseism signals are synchronously collected through a geophone, an accelerometer, an acoustic emission sensor and an optical fiber sensor, and data timestamps are aligned based on a GPS / Beidou clock; blind source separation is carried out on the signals after wavelet filtering, independent seismic source components are extracted, multi-sensor features are fused through a graph neural network, and a space-time joint feature matrix is constructed; classifying micro-seismic event types by using a ResNet-LSTM hybrid model, generating a seismic source coordinate initial solution based on deep reinforcement learning, and iteratively converging to an optimal solution through a particle swarm optimization algorithm; and mapping a positioning result to a three-dimensional geological grid model, simulating an energy diffusion path, triggering a three-level alarm according to the event energy density, and automatically pushing an emergency instruction to a mine safety management system. Therefore, the problem of low precision of the existing mine microseism positioning control system is solved.

The invention discloses a three-dimensional crustal stress field visualization construction method under a complex geological structure condition, and relates to the technical field of crustal stress field analysis. Comprising the following steps: in a to-be-analyzed area, obtaining characteristic data such as density and Poisson ratio of a surface rock-soil layer, a sedimentary layer, a parent material layer and a bedrock layer through well drilling; applying seismic waves, acquiring longitudinal wave and transverse wave speeds of each rock-soil layer by using a geophone, and calculating a shear modulus and a bulk modulus; and establishing a finite element model to analyze the strain tensor under the load, and calculating the stress tensor in combination with the modulus. Calculating pore water pressure, and correcting the stress tensor to obtain effective stress. Fault feature information is obtained through a geological report, and the stress tensor is further corrected to obtain accurate and effective stress. And constructing a three-dimensional geologic model and dividing grids, mapping accurate and effective stress to each grid unit, and completing visual construction of the crustal stress field by utilizing visual software. Safety and economic benefits are effectively improved, and risks caused by geological factors are reduced.

The invention relates to the technical field of logging while drilling, and discloses a near-bit stratum detection method, system and device, electronic equipment and a medium, and the method comprises the steps: transmitting a seismic wave to a to-be-detected stratum in front of a drill bit through an underground vibroseis, and receiving a reflected wave signal of the to-be-detected stratum through a geophone; calculating the relative position of the stratum in front of the drill to the drill in real time according to the reflected wave signal; acquiring a first lithologic seismic wave characteristic parameter of the reflected wave signal and a second lithologic seismic wave characteristic parameter of a known typical stratum; matching the first lithologic characteristic wave characteristic parameter with the second lithologic seismic wave characteristic parameter, and determining the formation lithology and the geological structure of the formation to be detected; outputting the stratum information of the to-be-measured stratum including the distance data, the stratum lithology and the geological structure; the seismic waves are not affected by various complex geological environments, the stratum information of the stratum to be measured can be accurately obtained, the drilling risk is reduced, and the drilling efficiency and safety are improved.

The invention relates to the field of seismic source monitoring, and discloses a double-bubble seismic source monitoring method based on water seismic exploration, which comprises the following steps: deploying a geophone array in a target sea area, recording seismic wave data generated by double bubbles by the geophone array, and taking frequency data of seismic waves as first target monitoring data; the seismic source identification module is used for identifying a seismic source, positioning the position of the seismic source by taking the propagation speed of the seismic wave as second target monitoring data and analyzing the time when the seismic wave reaches different detectors, respectively analyzing the amplitude attenuation characteristic change of the seismic wave in the propagation process and the propagation path of the seismic wave, and evaluating and analyzing the seismic scale; the earthquake risk level is evaluated, the earthquake occurrence probability is calculated based on the evaluated earthquake risk level, the accuracy of seismic source data acquisition is improved, the position of the seismic source can be accurately identified and positioned, and thus the accuracy of seismic probability prediction is improved.

The invention discloses an omnidirectional geophone inclination angle calibration method and system, and a computing device. The method comprises the following steps: enabling an X component, a Y component and a Z component of an omnidirectional geophone to coincide with an X axis, a Y axis and a Z axis of an accelerometer respectively; the polarity of each component of the omnidirectional geophone is correspondingly consistent with that of each component of the accelerometer; the positive and negative directions of the X axis, the Y axis and the Z axis of the accelerometer are made to coincide with the gravity acceleration direction, and acceleration values output by the accelerometer in the six postures are obtained; calculating an acceleration calibration coefficient of the accelerometer based on the obtained acceleration value; based on the acceleration calibration coefficient, calibrating an acceleration value output by the accelerometer in any attitude; calculating an inclination angle value of the omnidirectional geophone based on the calibrated acceleration value; and calculating a seismic data calibration matrix of the omnidirectional geophone based on the dip angle value and calibrating seismic data output by the omnidirectional geophone. The method can eliminate the influence of the attitude of the omnidirectional detector on the output seismic data.

A system, method, and non-transitory computer readable medium for in-field seismic data compression. The system includes geophones each having a 1-bit adaptive delta modulation for converting analog seismic signals to a modulated signal and transmitting the modulated signal, and a data collection center having a 1D convolutional neural network for receiving and compressing the transmitted modulated signal. The 1D CNN is configured to suppress quantization and random noise in the modulated signal.

The invention belongs to the field of seismic data processing, and discloses a seismic data augmentation method and system based on an adversarial network and semi-supervised learning, and the method comprises the steps: collecting a seismic signal through a seismic detector, obtaining time series data, and obtaining real seismic data after data preprocessing; generating unlabeled seismic data according to the real seismic data and the constructed data generation module; marking the unmarked seismic data by using the constructed data marking module to obtain seismic data with a pseudo tag; and forming a new seismic data set by manually marking the seismic data with the labels and the seismic data with the pseudo labels so as to realize the augmentation of the seismic data. On the premise of ensuring the data quality, the seismic data set construction efficiency is greatly improved, and powerful data support and technical guarantee are provided for seismic signal processing.

The invention belongs to the technical field of seismic exploration, and particularly discloses a geophone and a measurement method thereof. The geophone comprises an oscillator unit, an upper cover plate and a measuring unit, wherein the upper cover plate and the measuring unit are arranged right above the oscillator unit in parallel; a first capacitor plate array is deposited on the lower surface of the upper cover plate through metal deposition, and a second capacitor plate array and a metal coil are deposited on the upper surface of an oscillator of the oscillator unit through metal deposition; the vibrator unit is arranged in the constant magnetic field, and the vibrator unit is electrically connected with the measuring unit; the oscillator unit is used for driving the second capacitance plate array to move relative to the first capacitance plate array when an oscillator moves due to external vibration so as to generate a capacitance change signal; driving the metal coil to move so as to generate an induced current signal; and the measurement unit is used for measuring the seismic signal of the target frequency band based on the capacitance change signal and the induced current signal. According to the invention, seismic signal measurement covering a large dynamic range and a large frequency range can be realized, and meanwhile, high-resolution seismic signal measurement is realized.

The invention discloses a drill seismic source signal acquisition method and device, equipment and a medium, and relates to the technical field of seismic exploration. The method comprises the following steps: in an underground excitation process of an earthquake while drilling, respectively arranging a first seismic detector and a second seismic detector in a preset range of a drill bit and a preset range of a wellhead so as to obtain a corresponding first seismic wave reference signal and a corresponding second seismic wave reference signal; determining a seismic wavelet signal based on the first seismic wave reference signal and the second seismic wave reference signal, and generating a target seismic record by using the seismic wavelet signal and seismic wave data collected by a third seismic detector arranged on the earth surface; and processing the target seismic record by using a compressed sensing inversion technology to obtain a target drill seismic source signal. According to the technical scheme of the invention, the drill seismic source signal with high resolution and signal-to-noise ratio can be obtained.

This invention relates to the field of seismic source monitoring and discloses a dual-bubble seismic source monitoring method based on marine seismic detection. The method involves deploying a seismic detector array in a target sea area, recording seismic wave data generated by the dual bubbles, using the frequency data of the seismic waves as the first target monitoring data for seismic source identification, and using the propagation velocity of the seismic waves as the second target monitoring data. The method analyzes the arrival time of the seismic waves at different detectors to locate the seismic source. It also analyzes the amplitude attenuation characteristics and propagation path of the seismic waves during propagation to assess the earthquake magnitude and calculate the probability of earthquake occurrence based on the assessed earthquake risk level. This method improves the accuracy of seismic source data acquisition, enables accurate identification and location of the seismic source, and thus improves the accuracy of earthquake probability prediction.

The invention provides an earthquake monitoring device with an early warning function, and relates to the technical field of earthquake monitoring. The top of the transmission connector is connected with a data acquisition early warning station on the ground through a wire, the bottom of the transmission connector is connected with a seismic detector, and the seismic detector is located at the depth of 50-150 meters underground. The transmission connector is sleeved with a rotating sleeve and a sliding sleeve, the sliding sleeve is located at the top of the rotating sleeve, and the rotating sleeve is connected with the geophone. The connecting part of the protective upper cap and the transmission connector is sealed through the small sealing ring, and the connecting part of the protective upper cap and the protective lower shell is sealed through the large sealing ring, so that corrosion caused by groundwater vapor is effectively prevented, and the service life of the geophone is prolonged. The problems that in practical application of an existing earthquake early warning and monitoring device, effective sealing waterproof protection design is lacked, and when the device is in an underground humid and corrosive environment for a long time, internal elements of the device are prone to being affected with damp or eroded by corrosive substances to break down are solved.

The application provides a self-powered seismic detector based on triboelectricity and magnetoelectricity and a manufacturing method thereof. The detector comprises a triboelectricity sensitive unit and a magnetoelectricity sensitive unit which are combined with each other. The triboelectricity sensitive unit comprises an N-type magnet mass, a copper Z-shaped spring base, a PDMS friction pad and a signal lead-out wire. The signal lead-out wire is connected with a wireless data acquisition and conditioning circuit module. A power supply lead-out wire is connected with a power management module. The power management module is connected with the wireless data acquisition and conditioning circuit module. The self-powered cable-free seismic detector based on triboelectricity and magnetoelectricity obtained by using the manufacturing method has the advantages of simple and stable structure, light mass, strong anti-electromagnetic interference ability, high sensitivity, self-power supply and no need of external connecting cable. The detector is convenient for arrangement of field workers of seismic exploration and long-term data acquisition.

The invention provides a roadbed compaction quality real-time evaluation method and system for multi-domain signal processing, and relates to the technical field of roadbed compaction detection, and the method comprises the steps: obtaining a vibration wheel acceleration signal, a roadbed vibration signal and a noise signal; obtaining a vibration wheel excitation signal according to the vibration wheel acceleration signal and the noise signal; according to the vibration wheel excitation signal and the roadbed vibration signal after noise reduction, obtaining a wave velocity dispersion characteristic and an attenuation coefficient; obtaining an energy-compactness quantitative relation according to the wave velocity dispersion characteristic and the attenuation coefficient; generating a depth feature vector according to a wave velocity dispersion characteristic and an energy-compactness quantitative relation; and outputting a real-time compaction degree evaluation result according to the depth feature vector. According to the invention, three-dimensional space global continuous sensing of a vibration wave field is realized through the hexagonal geophone array; a time-frequency-space three-domain cascade noise reduction framework is combined, so that the purity of a vibration signal is improved; based on an online incremental learning mechanism, adaptive modeling during working condition change is realized.

This specification relates to the field of compressed air energy storage technology, specifically disclosing a condition monitoring system and method for underground gas storage facilities. The system includes: an acoustic monitoring well located in the upper part of the underground gas storage facility, equipped with a multi-component shear wave detector for acquiring creep or deformation monitoring data of the roof and surrounding rock; a microseismic monitoring well located in the lower part of the underground gas storage facility, equipped with an underground microseismic detector array for acquiring rupture event monitoring data of the surrounding rock; a fault leakage monitoring device, including a tracer gas injector and a tracer gas detection mechanism, for acquiring surface gas concentration monitoring data; and a data processing device connected to a multi-dimensional monitoring network for performing spatiotemporal correlation and cross-validation analysis on the received multi-dimensional monitoring data to generate a fusion assessment result of the structural integrity status and sealing safety risk of the underground gas storage facility. The above solution enables high-precision monitoring and assessment of underground gas storage facilities.

The invention belongs to the technical field of data processing and analysis, and particularly relates to a soft soil roadbed-oriented compaction quality real-time prediction and multi-dimensional intelligent evaluation method. The method comprises the following steps: step 1, arranging a plurality of vertical component engineering geophones on the surface of a soil body behind a vibrating wheel of a road roller along the advancing direction to form a geophone array, and connecting all sensors to an edge computing gateway for synchronous acquisition; 2, performing filtering processing on the original seismic waveform record acquired by the detector array; 3, establishing an initial velocity model according to the Rayleigh wave dispersion curve, and outputting a final shear wave velocity model; and 4, according to the final shear wave velocity model, extracting a compaction coefficient estimation value and a compaction uniformity variable coefficient of each depth horizon, and according to a preset determination rule, outputting a compaction quality grade. According to the invention, quality detection can be converted into real-time monitoring in the construction process from traditional postmortem sampling inspection, and compaction quality problems can be found and processed in time.

The invention provides a marine resource detection method, device and equipment, a storage medium and a product. The method comprises the following steps: sending an excitation instruction to a seismic source and a seabed electromagnetic transmitter to enable the seismic source to excite seismic wavelets, and sending a current signal by the seabed electromagnetic transmitter; performing signal acquisition on the seismic wavelets and the current signals by using a submarine seismic detector and a submarine electromagnetic receiver to obtain corresponding seismic sampling data and electromagnetic sampling data; constructing a joint inversion model based on cross gradient constraint according to the seismic sampling data and the electromagnetic sampling data; and carrying out iterative solution on the joint objective function of the joint inversion model, and determining an exploration result. By solving the joint model, an imaging result with high geologic structure consistency can be obtained, so that the recognition precision and reliability of exploration targets such as deep-sea oil and gas reservoirs and natural gas hydrates are effectively improved, and an accurate exploration result is obtained.

The present invention provides an automatic telescopic geophone, which is mainly composed of a geophone body and a geophone tail cone. The geophone body is composed of a geophone body housing, a servo motor, a large gear, a small gear, a support plate, and a support shaft. The servo motor provides power for the gear transmission, and the small gear drives the large gear to provide a large torque. The geophone tail cone is mainly composed of a cylindrical housing, a central shaft, a bearing seat, an impeller, a fixing pin, a latch, a telescopic auxiliary tail cone, a guide sleeve, a tail cone sleeve, a blade-shaped tail cone, and a bearing end cover. The telescopic auxiliary tail cone of the geophone reciprocates in the impeller through the latch, and the telescopic auxiliary tail cone is inserted into the soil under the push of the impeller. The blade-shaped tail cone is obtained by cutting 7 grooves. The telescopic auxiliary tail cone and the blade-shaped tail cone both increase the contact area between the tail cone and the soil, so that the coupling effect of the geophone tail cone and the earth is better.

A system, computer-readable storage medium and method of reflection seismic survey in a wireless seismic network within a survey area is described. The method includes detecting, in each of a plurality of wireless seismic sensor nodes, seismic reflection signals from a seismic energy source; recording, in each of a plurality of wireless geophones, detected seismic signals; transmitting, by the geophones, the recorded seismic signals as digital data, using a combination of Orthogonal Frequency-Division Multiple Access (OFDMA) and Time Division Multiple Access (TDMA), to a central data receiving device; changing the seismic energy source location for seismic reflection; and repeating the detecting, recording and transmitting a number of times for each change in seismic energy source.

A system, computer-readable storage medium and method of reflection seismic survey in a wireless seismic network within a survey area is described. The method includes detecting, in each of a plurality of wireless seismic sensor nodes, seismic reflection signals from a seismic energy source; recording, in each of a plurality of wireless geophones, detected seismic signals; transmitting, by the geophones, the recorded seismic signals as digital data, using a combination of Orthogonal Frequency-Division Multiple Access (OFDMA) and Time Division Multiple Access (TDMA), to a central data receiving device; changing the seismic energy source location for seismic reflection; and repeating the detecting, recording and transmitting a number of times for each change in seismic energy source.

The application discloses a surface wave dispersion image generation method, medium, equipment and product, relates to the surface wave exploration field, and the method comprises the steps of obtaining a time domain surface wave signal received by a seismic detector, and arranging the time domain surface wave signal according to spatial positions to form a trace gather; performing S transformation on the time domain surface wave signal of each seismic trace to obtain a complex time-frequency spectrum; based on the time-frequency spectrum, extracting a complex frequency spectrum corresponding to main energy of each seismic trace at each frequency point, and performing normalization processing to obtain a phase spectrum; selecting a plurality of trial phase velocities in a preset phase velocity scanning range, and for each frequency and trial phase velocity, coherently superimposing the phase spectrum corresponding to all seismic traces to construct an energy function in a frequency-phase velocity domain; and when the trial phase velocity is consistent with an actual surface wave phase velocity, obtaining a surface wave phase velocity dispersion energy image based on the energy function in the frequency-phase velocity domain. The application can improve the anti-interference ability and stability of surface wave dispersion imaging under complex geological or noise conditions.

The invention relates to an acoustic-seismic combined monitoring method and device for mountain river bed load, and the device comprises a sensing plate which bears the impact of river bed load particles, a seismic detector which collects a vibration signal, and a plurality of microphone elements which independently collect an acoustic signal. The method comprises the following steps of: extracting first-motion waves of a plurality of collected sound signals, passing through the amplitude of each node of a sensing plate, and generating a sound source intensity distribution image, thereby realizing the identification of the spatial position of a bed load on the sensing plate, and calculating a vibration signal wave packet through a system amplitude threshold value; constructing a correlation function to obtain the maximum positive amplitude of a vibration signal wave packet, calculating the particle size of bed load particles, correcting the eccentric error of the vibration signal, improving the recognition precision of the bed load particle size, and further calculating the sediment transport rate in real time. According to the method, the sound signal and the vibration signal are combined, the eccentricity error of the high-frequency geophone signal is recognized and corrected through the spatial position, the recognition precision of the grain size of the bed load is improved through the corrected geophone signal, and inversion calculation of the sediment transport rate is achieved.

This utility model relates to the field of seismic exploration equipment, and more particularly to a novel seismic detector mounting base, comprising a base body. The bottom layer of the base body has X-axis mounting holes along the X-axis for placing the detector assembly, and a bottom-layer set screw for fixing the detector assembly. The middle layer of the base body has Y-axis mounting holes along the Y-axis for placing the detector assembly, and a middle-layer set screw for fixing the detector assembly. The top surface of the base body has Z-axis mounting holes along the Z-axis for placing the detector assembly, and the upper layer of the base body has upper-layer set screws for fixing the detector assembly. This utility model's base can receive seismic wave signals from multiple directions, simultaneously handling high-frequency and low-frequency signals. The overall structure is compact and stable. This utility model is simple to assemble, and after assembly, it ensures the relative installation position of the seismic detector, has good coupling, and provides high accuracy, high resolution, and high precision in seismic wave reception.

The utility model discloses a fracturing downhole parameter monitoring device which comprises a three-component geophone and a placing circular plate which are detachably connected in sequence from top to bottom. The supporting base is of an L-shaped structure, the side wall of the supporting base is connected with the well wall of the fractured well through bolts, and the middle of the bottom wall of the supporting base is connected with the containing circular plate through an automatic correction assembly; the automatic correction assembly comprises a ball sleeve, the upper end and the lower end of the ball sleeve are each of an open structure, and the side wall of the ball sleeve is fixedly connected with the bottom wall of the supporting base through a connecting rod; the ball is rotatably arranged in the ball sleeve, the upper end of the ball is connected with the placing circular plate, the lower end of the ball is detachably connected with a plumb bob, and the center of the placing circular plate, the center of the ball and the axis of the plumb bob are collinear; by means of the characteristic that the placing circular plate, the ball and the plumb bob are coaxially arranged, automatic horizontal correction is carried out on the placing circular plate supporting the three-component geophone; therefore, the three-component geophone calibration device can play a role in quickly calibrating the three-component geophone.

The present invention discloses a method for testing a seismic detector based on the seismic wavelet principle, comprising the following steps: creating a quiet and electromagnetically shielded space to ensure that the free axis of the seismic detector is perpendicular to the ground; selecting a seismic wavelet signal generator and a seismic detector response output recorder; connecting the seismic detector output to the input of an acquisition station during operation; starting a seismic detector pulse test on a seismic instrument in a set manner and recording the pulse; quantifying the waveform characteristics of the pulse response from various aspects such as frequency, phase, amplitude, and time; and using the seismic detector response data tested based on the seismic wavelet principle as an object, quantifying the seismic detector's background noise and the lowest resolvable frequency, and based on the data, calculating the dynamic range of the seismic detector when matched with the seismic instrument and the response frequency band of the seismic detector when matched with the seismic instrument. The present invention can solve the technical problem that the test results of traditional seismic detectors cannot directly reflect the quality of the sensing seismic wavelet.

The invention discloses a surface wave frequency dispersion image generation method, a medium, equipment and a product, and relates to the field of surface wave exploration, and the method comprises the steps: obtaining time domain surface wave signals received by a geophone, and arranging the time domain surface wave signals according to spatial positions to form a gather; performing S transformation on the time domain surface wave signal of each seismic channel to obtain a complex value time-frequency spectrum; based on the time-frequency spectrum, extracting a complex frequency spectrum corresponding to main energy on each frequency point of each seismic channel, and performing normalization processing to obtain a phase spectrum; selecting a plurality of heuristic phase velocities in a preset phase velocity scanning range, performing coherent superposition on phase spectrums corresponding to all seismic traces for each frequency and the heuristic phase velocity, and constructing an energy function of a frequency-phase velocity domain; and when the tentative phase velocity is consistent with the actual surface wave phase velocity, obtaining a surface wave phase velocity frequency dispersion energy image based on an energy function of a frequency-phase velocity domain. According to the invention, the anti-interference capability and stability of surface wave frequency dispersion imaging under complex geology or noise conditions can be improved.

The present application belongs to the field of seismic exploration technology, and specifically discloses a seismic detector and its measurement method. The seismic detector includes a vibrator unit, an upper cover plate arranged parallel to and just above the vibrator unit, and a measuring unit; the lower surface of the upper cover plate is metal-deposited with a first capacitor plate array, and the upper surface of the vibrator of the vibrator unit is metal-deposited with a second capacitor plate array and a metal coil; the vibrator unit is set in a constant magnetic field, and the vibrator unit is electrically connected to the measuring unit; the vibrator unit is used to drive the second capacitor plate array to move relative to the first capacitor plate array when the vibrator moves due to external vibration, so as to generate a capacitance change signal; drive the metal coil to move to generate an induced current signal; the measuring unit is used to measure the seismic signal of the target frequency band based on the capacitance change signal and the induced current signal. Through the present application, seismic signal measurement covering a large dynamic range and a large frequency range can be achieved, while achieving high-resolution seismic signal measurement.

The invention relates to an accurate matching method for a geophone and a seismic instrument, and the method comprises the following steps: S1, determining key matching parameters of the geophone, the key matching parameters comprising output resistance, sensitivity, a damping coefficient and natural frequency; s2, setting the output resistance to be not greater than 1 / 20 of the input resistance of the seismic instrument; s3, the natural frequency is set to be 2.5 Hz so as to adapt to receiving of signals from 1 Hz to 200 Hz; s4, the damping coefficient is set to be 0.707, so that a good temporal-spatial resolution is obtained; and S5, setting the sensitivity to be 160 V / m / s, and enabling the sensitivity to be matched with the maximum allowable input voltage of the seismic instrument. According to the method, the input characteristics of the seismic instrument are fully considered through the matching method, so that when the matched seismic instrument works, the working characteristics of the geophone are basically consistent with the nominal index, and then the seismic signal response effect of the geophone is guaranteed in a full-band mode.

This invention proposes an adaptive transient surface wave exploration method, equipment, and storage medium. The method includes: exciting a seismic source and acquiring measurement data from the seismic source using geophones; acquiring the surface wave dispersion spectrum; the acquisition of the surface wave dispersion spectrum involves: using one geophone as the central channel and the remaining geophones within a defined range adjacent to the central channel as adjacent channels; calculating the surface wave dispersion spectrum based on the measurement data of the central channel and the measurement data of the adjacent channels; and acquiring the subsurface shear wave velocity structure of each geophone channel based on the surface wave dispersion spectrum, thereby obtaining the subsurface shear wave velocity profile across the entire measurement range to complete the exploration. Furthermore, this invention also discloses an adaptive transient surface wave exploration equipment and storage medium. This invention employs distributed cableless seismic geophones and acquires the subsurface shear wave velocity structure of each geophone channel through channel-by-channel inversion, significantly improving the resolution of the final subsurface shear wave velocity profile within the measurement range, greatly satisfying the requirements for refined exploration in complex environments.

The invention relates to the field of geological survey technology, and discloses a tunnel TBM excavation earthquake advance prediction receiving device, including a source excitation device and a source signal receiving device, two sets of source excitation devices are symmetrically installed at positions near the face of the tunnel in the TBM excavator, and multiple source signal receiving devices are installed at different positions on the inner wall of the tunnel, and the source signal receiving device includes a conical casing, an installation anchor rod and a wireless seismic detector, the conical casing is hollow, and two arc-shaped reinforcement plates are symmetrically arranged in the conical casing, and the end surface of the arc-shaped reinforcement plate close to the inner wall of the conical casing is fixed with a plurality of hollow reinforcement cones, and the side wall of the conical casing is provided with conical holes at positions corresponding to the hollow reinforcement cones, and a conical space for the installation anchor rod to pass through is formed between the two arc-shaped reinforcement plates, and the installation anchor rod passes through the conical space to squeeze the arc-shaped reinforcement plate to move, and the installation anchor rod is connected to the wireless seismic detector. A breakthrough in the advance prediction of earthquake reflection in the shield-type TBM excavation tunnel is achieved.

The present invention relates to the field of seismic detectors, and in particular to a method for synchronously triggering 428XL of seismic detectors and a synchronous triggering device of the detector. In the Explo‑IMPULSIVE menu window, the equipment type and ID number in the Operation explosion processing type are changed, the trigger port is changed from LCI to Laux, and the specific equipment number in the field operation is input; the length of the TB time window is lengthened; the P and N contacts of Laux_428 are led out with a small wire connected to a detector with a fixed tap, and the detector is buried in the blasting wellhead. After the explosion preparation is completed, the blaster notifies the instrument, and the instrument operator clicks the trigger command and notifies the blaster; the on-site personnel ignite the explosive product fuse, and the underground detector is excited by the explosion center to generate a starting electrical signal, which is uploaded to Laux via the PN lead, and the return instrument starts synchronous acquisition. The present invention is a synchronous triggering method that does not require electric detonators and shaped explosives, can use the explosion center detector signal to synchronously trigger instrument acquisition, and is simple to operate on site.