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153 results about "Blasting vibration" patented technology

Mine slope risk assessment method and system based on multi-source data space-time fusion

The invention provides a mine slope risk assessment method and system based on multi-source data space-time fusion, and relates to the technical field of mine monitoring, and the method comprises the steps: obtaining geological and engineering data, and constructing a basic model representing a slope three-dimensional space structure; collecting multi-source heterogeneous monitoring data on a mine slope field, and aligning and fusing the multi-source heterogeneous monitoring data with the basic model in a space-time dimension to generate a continuous dynamic parameter field; and setting a data fusion model, and taking the basic model and the dynamic parameter field as input to obtain a four-dimensional space-time fusion risk field. According to the method, the basic model representing the three-dimensional space structure of the slope is constructed, and a unified space-time bearing base is provided for all heterogeneous monitoring data, so that originally isolated data such as GNSS displacement, deep displacement, blasting vibration and underground water level can be fused in a unified coordinate system; the problem of data splitting in the prior art is fundamentally solved, and integral and integrated expression of slope engineering and geological conditions is formed.
Owner:CNTIC INT CONTRACTING & ENG CO LTD

Blasting vibration speed attenuation law prediction method based on regression analysis

The invention belongs to the technical field of blasting vibration prediction, and particularly discloses a blasting vibration speed attenuation law prediction method based on regression analysis, and the method comprises the steps: laying monitoring points in multiple directions around a blasting source, synchronously collecting the geological parameters and mass point peak vibration speed of each point, and constructing a segmented propagation path; a single dominant propagation section is identified based on adjacent monitoring point data, independent influence of specific geological conditions on vibration attenuation is quantified by combining single-factor control regression analysis, decoupling modeling of geological factors and attenuation behaviors is realized, and meanwhile, a double-factor dominant propagation section is identified on the basis of quantizing the independent influence of the single geological conditions. And deducting a known effect through residual analysis to separate out an independent contribution of another geological parameter, and finally integrating a multi-factor influence function to construct a comprehensive attenuation model. Progressive modeling from single-factor decoupling to multi-factor collaboration is achieved, and the precision and physical interpretability of blasting vibration prediction in a complex heterogeneous stratum are remarkably improved.
Owner:SHANGHAI CIVIL ENG GRP SIXTH CO LTD +2

Multi-objective collaborative optimization parameter setting method for blasting vibration and dust control

The invention discloses a blasting vibration and dust control-oriented multi-objective collaborative optimization parameter setting method, which comprises the following steps of: training a neural network model capable of predicting a complete vibration time travel curve and a three-dimensional dust concentration field on the basis of a training sample containing geological conditions, blasting parameters and an actual blasting effect; the model is used for carrying out multi-target optimization on a target function containing four indexes of vibration, dust, cost and regulation compliance through a preset evolutionary algorithm, a Pareto optimal solution set composed of a plurality of non-dominated parameter schemes is obtained, the schemes in the optimal solution set are analyzed through a preset explanation algorithm, and the optimal solution set is obtained. The influence and contribution degree of each blasting parameter on a prediction result are quantified, so that a black box model is converted into an interpretable white box decision; according to the method, the problems that a traditional method is difficult to balance multiple conflict targets and the decision-making process is opaque are solved, and an optimal blasting parameter scheme considering safety, environmental protection and cost effectiveness is provided for blasting operation.
Owner:CHINA RAILWAY 17TH BUREAU GRP URBAN CONSTR CO LTD

Mine blasting design optimization method and device based on digital twinning and medium

The invention discloses a mine blasting design optimization method and device based on digital twinning and a medium, and relates to the technical field of digital twinning, and the method comprises the steps: collecting terrain three-dimensional point cloud, geological drilling records, joint and fracture distribution and rock mass mechanical parameters of a physical mine, and constructing an initial digital twinning body; through a deep reinforcement learning algorithm of a multi-target reward function, performing multiple rounds of interactive training in a digital twinborn simulation environment to obtain a deep reinforcement learning agent; implementing an optimal blasting scheme in the physical mine, acquiring blasting vibration signals, and inputting the blasting vibration signals into the vibration inversion neural network to obtain rock mass parameter correction values; the updated digital twinborn body is corrected based on the rock mass parameter correction value, a blasting simulation scene is reconstructed, blasting energy distribution, fragment granularity and slope stability are evaluated, and a blasting design optimization feedback data set is generated; a high-fidelity initial digital twinborn body fused with multi-source geological information is constructed, and the safety of mine blasting operation is effectively improved.
Owner:CHANGCHUN GOLD DESIGN INST

Tunnel blasting vibration monitoring method and system based on image recognition

The invention provides a tunnel blasting vibration monitoring method and system based on image recognition, and relates to the technical field of tunnel safety monitoring, and the method comprises the steps: obtaining a geological parameter set of a tunnel target region and an image sequence of a blasting moment; carrying out fluctuation analysis on geological parameters to obtain vibration characteristic data reflecting rock mass non-uniform characteristics, synchronously carrying out optical flow analysis and region identification processing on an image sequence, respectively generating a displacement vector field and an identification deformation region, carrying out spatial association on the vector field and a micro-deformation region to form vibration field data with rock mass structure characteristics, and carrying out vibration field identification processing on the vibration field data; and coupling with the vibration characteristic data to reconstruct a three-dimensional propagation path, and finally identifying a damage risk area of the tunnel target area based on an energy distribution pattern on the path. According to the method, the damage risk identification precision of the tunnel rock mass under blasting vibration is improved.
Owner:CHINA RAILWAY 19 BUREAU GRP CO LTD +1

Rock mass damage identification method and system for carbon dioxide blasting dynamic disturbance

The invention discloses a rock mass damage identification method and system for carbon dioxide blasting dynamic disturbance. The method comprises the steps that a blasting vibration and micro-fracture signal sequence is obtained; the theoretical model and historical statistics are fused, and a theoretical dynamic load time history and an expected vibration response baseline are generated through inversion; through multi-sensor signal fusion, identifying a main vibration phase and defining a precursor and aftereffect analysis window; calculating multi-dimensional quantitative characteristics of the micro-fracture activity in the window; identifying a dynamic disturbance abnormal region based on double baseline comparison; a multi-dimensional quantitative coupling model of space, time and energy evolution is established, and a newly-added damage area of the rock mass is accurately judged; and finally, judging a damage dominant mechanism by combining pre-effect and post-effect feature correlation analysis. According to the method, the problems that a traditional method is difficult to distinguish blasting induced damage and background activity, and accurate damage positioning and mechanism judgment cannot be achieved are solved, the accuracy, reliability and engineering practicability of damage identification are remarkably improved, and intelligent decision support is provided for blasting effect evaluation.
Owner:JIANGXI PROVINCIAL EXPRESSWAY INVESTMENT GRP CO LTD

Shallow-buried soft rock tunnel sensitive section grading blasting construction method

The invention discloses a graded blasting construction method for a shallow-buried soft rock tunnel sensitive section. The method comprises the steps that measuring points are arranged in a tunnel chamber, a ground surface non-cavity section and a cavity section, and blasting vibration data are obtained; peak vibration velocity prediction models are established in a partitioned mode, an attenuation model is adopted in a chamber, a correction term is introduced into a non-cavity section of the earth surface to correct the attenuation model, and a multivariable model is established for the cavity section through dimensional analysis by integrating the horizontal distance, the elevation difference, the explosive quantity, the rock mass density and the tensile strength; determining a ground surface vibration velocity safety threshold, and quantifying a cavity vibration velocity amplification coefficient and an influence range thereof; based on the peak vibration velocity probability distribution and a preset safety level, establishing a safe dose prediction model and a safe range model; and dividing control areas according to the model, and implementing graded construction. According to the method, the vibration propagation law can be accurately described, the cavity amplification effect can be quantified, dynamic prediction of the blasting safety explosive quantity and range is achieved, and disturbance of blasting vibration to surrounding rock is effectively controlled through hierarchical management and control.
Owner:CHINA FIRST HIGHWAY ENGINEERING CO LTD +2

Open blasting full-time-history vibration synthesis prediction method

The invention discloses a surface blasting full-time-history vibration synthesis prediction method which comprises the following steps: S1, acquiring geological parameters of a surface blasting area, blast hole arrangement parameters and explosive quantity parameters, and arranging vibration monitoring points in a protection area of the blasting area; and S2, on the basis of the Anderson theory, a single-hole vibration curve reconstruction model is established when the free surface condition is not changed in combination with an on-site limited single-hole blasting experiment, and the model takes the quantitative mapping relation between the vibration velocity peak value and the explosive quantity, the distance from the blast hole to the monitoring point and the site factor as the core. According to the method, accurate prediction of large-scale open blasting full-time-history vibration is realized, and a reliable technical means is provided for collaborative optimization of blasting vibration control and a crushing effect.
Owner:GUIZHOU XINLIAN BLAST ENG GRP

A self-calibration type slope cumulative deformation radar monitoring method

This invention discloses a self-calibrating radar monitoring method for cumulative slope deformation, comprising the following steps: acquiring radar echo data of the target using radar equipment, and generating a preliminary deformation sequence based on the radar echo data; synchronously collecting environmental data of the target area using an environmental sensor group deployed in conjunction with the radar equipment; the environmental data includes meteorological data and vibration data; identifying abrupt deformation data segments in the preliminary deformation sequence based on the environmental data, and classifying the changes in the preliminary deformation sequence into blasting vibration events and atmospheric environmental interference events; reconstructing the preliminary deformation sequence based on the event classification results, filtering out data changes belonging to blasting vibration events and atmospheric environmental interference events, generating a filtered deformation sequence, calculating and outputting the cumulative deformation of the target; by identifying abrupt deformation data segments, distinguishing between real slope deformation and spurious deformation, significantly improving the accuracy of deformation monitoring data.
Owner:BEIJING TOPSKY CENTURY HLDG CO LTD

A method for predicting surface vibration waveforms during tunnel blasting

ActiveCN116432815BComprehensive considerationAccurately reflect the actual situation of blasting vibrationWave shapeClassical mechanics
This invention provides a method for predicting surface vibration waveforms during tunnel blasting, comprising: first, deriving the vibration waveform function of a short-charge explosive charge based on Heelan theory; then, constructing a vibration calculation form suitable for tunnel cut-out blasting based on this short-charge explosive charge vibration waveform function, and calculating the surface vibration waveform function of the cut-out holes using the superposition principle; next, simplifying and correcting the formula for the waveform function of multiple-hole blasting to obtain the surface vibration waveform function of multiple-hole blasting in the tunnel; finally, determining the specific parameters in the formula by comparing with field measured data, and obtaining a surface vibration waveform function curve suitable for field use. This method can comprehensively and accurately predict the waveform time history curve of the entire process of surface vibration during tunnel blasting, rather than just predicting a single blasting peak value. It can effectively promote the field application of surface vibration waveform prediction for tunnel blasting and is of great significance for optimizing blasting parameters and ensuring the safety of various facilities and personnel around the blasting area.
Owner:CHINA RAILWAY DEV INVESTMENT CO LTD +4

A ship lock excavation blasting vibration control method and system

This invention relates to the field of water conservancy engineering construction technology, and discloses a method and system for controlling blasting vibration during lock excavation. By collecting information on the geological hardness of rock strata and the distance to surrounding buildings, and combining this with finite element analysis to simulate the blasting energy distribution, a dynamic matching mechanism for borehole depth and charge quantity is constructed. This method overcomes the limitations of traditional empirical parameter settings and uses iterative simulation and optimization algorithms to achieve coordinated adjustment of borehole depth and charge quantity. For example, in areas with high rock hardness, by increasing the borehole depth and matching a segmented charge strategy, the blasting energy is uniformly released in the deep rock mass, effectively reducing the peak ground vibration and avoiding structural damage to adjacent buildings. Furthermore, by introducing multi-dimensional data analysis and multi-scenario simulation verification mechanisms, it can flexibly cope with complex working conditions such as uneven rock hardness, topographical undulations, adjacent water bodies, or dense building clusters.
Owner:THREE GORGES WATER TRANSPORT NEW CHANNEL (HUBEI) CO LTD

Deeply-buried cavern blasting vibration safety assessment method considering unloading vibration frequency influence

The invention provides a deep-buried cavern blasting vibration safety assessment method considering unloading vibration frequency influence, which comprises the following steps: performing low-frequency characteristic analysis on an actually measured vibration signal, emphatically considering low-frequency vibration response induced by crustal stress transient unloading, establishing a low-frequency vibration safety assessment system, and evaluating the blasting vibration safety of a deep-buried cavern. Therefore, more accurate and reliable evaluation of the blasting vibration safety of the deep-buried cavern is realized. The method provides scientific theoretical support and operable technical basis for safe construction of underground engineering under the high ground stress condition. The method is suitable for underground workshops of large hydropower stations with the burial depth exceeding 500 m, long and large tunnel engineering, deep mineral resource exploitation and the like.
Owner:CHINA THREE GORGES UNIV

Deep hole static fracturing and blasting combined mining dilution control method

The method of deep hole static fracturing combined with blasting for recovery and dilution control is as follows: the surrounding fracturing holes are arranged in the edge area of the two-step stope adjacent to the one-step filling body, the blasting deep holes are concentratedly arranged in the core area of the ore body in the middle of the stope, the blasting deep holes and the auxiliary blasting holes are arranged in parallel, the auxiliary vibration hole blasting auxiliary hole is arranged in the middle, the joint operation ore falling process strictly follows the order of “first static fracturing and then sublevel blasting”, the precise partition of blasting load and fracturing weakening is realized, the direct damage of blasting vibration to the filling body is maximally isolated, and there are six process steps and conditions, which can solve the technical problems of high ore dilution rate caused by the mixing of filling body and ore pile due to insufficient filling body strength or complex construction in the recovery process of existing two-step stope, and can also consider safety, process simplification and dilution control.
Owner:ZIJIN MINING GROUP CO LTD +1

Vibration reduction method and system for surrounding rock blasting under complex geological conditions

The invention relates to the technical field of surrounding rock blasting vibration reduction, and discloses a vibration reduction method and system for surrounding rock blasting under complex geological conditions, which are used for solving the problems of surrounding rock instability, structure damage and the like caused by blasting vibration in complex geological environments. The method comprises the following steps: 1) geological investigation and risk grading: acquiring parameters by using geological radar, drilling sound wave test and the like, and dividing risk areas; (2) blasting parameters are optimized, and the explosive loading amount, delay time and the like are adjusted according to different risk areas; (3) a vibration reduction scheme is formulated, and measures such as damping grooves, rubber pads and grouting reinforcement are adopted; and 4) monitoring feedback, collecting vibration data in real time and correcting the scheme. The system is composed of a control center, a geological survey module, a parameter design module, a vibration reduction arrangement module and a monitoring feedback module, and vibration reduction control is achieved. Through geological accurate pre-judgment, parameter dynamic optimization and multi-dimensional vibration reduction, the blasting vibration influence is reduced, the safety of surrounding rock and surrounding structures is guaranteed, and the method is suitable for engineering scenes such as tunnel excavation and mining.
Owner:CHANGAN UNIV +1

An intelligent monitoring device for blasting vibration

The utility model discloses an intelligent monitoring equipment for blasting vibration, including organism, control panel, data line, monitoring head and butt joint structure, the utility model discloses when data line is connected with monitoring head, will connect the head and fixed base butt joint, and the connect head will push and press the chuck when sliding along the inboard of fixed base, under the action of elastic connecting piece, the chuck is clamped in the card slot, to realize the butt joint limit of connect head and fixed base, has reached the portability of monitoring head and data line connection high, can realize the beneficial effect of quick butt joint, when disassembling, the press rod is pressed down and drives elastic connecting piece and chuck, and the chuck turns into the inside of connect head, and the limit of connect head is solved, then can draw out the connect head, makes monitoring head and data line separate, has reached the beneficial effect of quick dismounting.
Owner:FUJIAN TIANYU FANGYUAN MINING CO LTD

Blasting vibration signal denoising method and system

This invention discloses a method and system for denoising blasting vibration signals. It decomposes the original noisy blasting vibration signal using CEEMDAN, and classifies each intrinsic mode function (IMF) into effective vibration and noise using a correlation coefficient threshold, reconstructing the primary and secondary IMF components. Further, it applies wavelet packet threshold denoising at multiple decomposition levels to the primary and secondary IMF components, combining these levels to obtain the optimal decomposition levels for the primary and secondary IMF components. Based on these optimal decomposition levels, it denoises the primary and secondary IMF components, reconstructing the denoised primary and secondary IMF components into a high-precision blasting vibration denoised signal. This effectively reduces noise components in the blasting vibration signal while preserving the effective features of the original signal to the maximum extent.
Owner:CENT SOUTH UNIV

Excavation construction method for large-section tunnel in complex geology

The invention relates to the technical field of tunnel excavation, and discloses a complex geology large-section tunnel excavation construction method which comprises the steps that S1, according to the grade of surrounding rock, a tunnel face is divided into at least one hard rock mass area and at least one soft loose rock mass area, a blasting vibration buffer area is arranged at the end, close to the hard rock mass area, of the soft loose rock mass area, and the blasting vibration buffer area is arranged at the end, close to the hard rock mass area, of the soft loose rock mass area; blasting excavation is conducted on the hard rock mass area, and mechanical excavation is conducted on the soft loose rock mass area; when blasting excavation is carried out on the hard rock mass area, tunnel blasting vibration is monitored and analyzed, blasting parameters are optimized, and the blasting vibration speed is controlled within a blasting regulation allowable value; and S2, measures for enhancing the bearing capacity of arch feet are taken for the excavated surrounding rock. Different excavation modes are adopted according to different rock mass materials, disturbance to surrounding rock is reduced, and then surrounding rock instability is effectively restrained; the bearing capacity of the arch foot area is enhanced, so that lining cracks are effectively restrained.
Owner:GUONENG ECONOMIC & TECH RES INST CO LTD

Replaceable blast vibration prevention air door adjusting device

The utility model relates to a replaceable blast vibration prevention air door adjusting device which aims at solving the problems that a traditional air door cannot accurately adjust air volume and is prone to being damaged in underground blast vibration. The device comprises a main body frame, baffle angle steel and an air adjusting plate, a groove is formed between the baffle angle steel and the main body frame, the air adjusting plate is detachably installed in the groove, and the main body frame is formed by welding an upper transverse channel steel, a lower transverse channel steel, a left vertical channel steel and a right vertical channel steel. The device has the advantages of being good in stability, high in corrosion resistance and easy to replace and maintain, damage of underground blasting vibration can be resisted, the maintenance cost is reduced, the service life is prolonged, and meanwhile the underground ventilation requirement is met.
Owner:ANHUI PROVINCE LUJIANG LONGQIAO MINING

Strip mine blasting vibration measurement point positioning method and system based on three-dimensional model of blasting area

The invention discloses a strip mine blasting vibration measurement point positioning method and system based on a three-dimensional model of a blasting area, and aims to solve the technical problems that traditional blasting vibration monitoring points are high in selection randomness and low in positioning precision, and the vibration attenuation rule of a complex blasting network cannot be accurately reflected. The method comprises the following steps: performing high-precision aerial survey and three-dimensional modeling on a blasting area by using an unmanned aerial vehicle, automatically searching an optimal vibration measurement point layout in a three-dimensional terrain model of the blasting area through a multi-target intelligent optimization algorithm in combination with blasting hole coordinates and a blasting time sequence, and realizing centimeter-level precision vibration measurement point field positioning through high-precision RTK equipment. According to the method, intelligent, high-precision and scientific vibration measurement point arrangement is realized, the scientificity and precision of vibration measurement point arrangement are improved, the method can adapt to various complex blasting networks such as row-by-row blasting and hole-by-hole blasting, and a reliable data basis is provided for blasting vibration attenuation law research.
Owner:XINJIANG UNIVERSITY

A dynamic optimization design method based on engineering blasting parameters

The present application relates to the technical field of engineering blasting optimization, in particular to a dynamic optimization design method based on engineering blasting parameters, comprising: collecting stratum geological parameters such as rock hardness profile and rock mass fracture distribution of blasting site and blasting vibration three-direction velocity time history monitoring data, carrying out time-frequency joint analysis on time history record to extract dispersion curve and energy attenuation envelope, and constructing a digital rock mass structure model capable of calculating blasting stress wave propagation path. The vibration characteristic data is used as boundary condition to carry out numerical simulation to obtain simulated vibration velocity field, according to the difference between simulated data and measured data, combining with rock mass wave impedance distribution, the intelligent optimization algorithm is used to iteratively optimize the charge structure parameters and initiation time sequence scheme, and the optimized blast hole charge quantity, section and initiation delay are output. The method can improve the accuracy of blasting vibration propagation simulation, reduce the deviation between simulated and measured vibration velocity fields, and make the blasting parameter design more suitable for the actual geological environment of the engineering site.
Owner:CHENGDU TIANYOU TANGYUAN ENG TESTING CONSULTING CO LTD +1

Intelligent control system and method for co2 blasting based on digital twinning and edge computing

PendingCN122258709AReduce unit consumptionReduce fugitive fugitiveProgramme controlDisloding machinesPersonalizationRadio frequency energy
The application discloses a CO2 blasting intelligent control system and method based on digital twinning and edge computing, which deeply integrates wireless ad hoc network, radio frequency energy activation, edge computing collaborative decision and digital twinning modeling, realizes technical leap from preset triggering to intelligent closed loop, generates personalized parameters based on digital twinning model, combines edge computing real-time sensing and collaborative decision, reduces blasting vibration, improves ore crushing uniformity, reduces secondary crushing energy consumption, and improves blasting accuracy; radio frequency energy activation and electronic safety lock mechanism are adopted to realize zero live standby before detonation, eliminate early explosion risk caused by stray current and misoperation; the operator can complete all operations in a safe area one kilometer away, which essentially improves safety; through the wireless ad hoc network, the disconnection failure of wired connection is eliminated, intelligent collaborative detonation reduces the large block rate, the feedback optimization mechanism continuously reduces the unit consumption of explosives, and the comprehensive cost is reduced.
Owner:SHAANXI MEITAI XINNENG TECH DEV CO LTD

Low loss recovery method for broken inclined ore body ore rock contact zone

This application discloses a low-loss mining method for the contact zone of fractured and inclined ore bodies, belonging to the field of mining engineering technology. By using decoupled charging in the intensified blasting holes, at least one charging segment and multiple isolation segments are formed within the holes. The charging segment is projected perpendicular to the direction of adjacent intensified blasting holes, and this projection is separated from the charging segments in adjacent holes. This staggered arrangement of the charging segments prevents the wavefronts of the explosive stress waves from adjacent blasting holes from neatly overlapping as they propagate in the rock mass. Instead, they disperse and cancel each other out, weakening the overall energy and peak stress of the blasting vibration field. This reduces the vibration intensity of pre-splitting blasting, minimizes damage to the protected fractured surrounding rock during blasting operations, and ensures that the explosive energy continuously guides crack propagation along the borehole connection direction, forming a pre-splitting isolation surface that conforms to the natural ore-rock boundary. This solves the problems of large disturbances and easy instability of the surrounding rock in traditional pre-splitting blasting.
Owner:CHINA MINMETALS CHANGSHA MINING RES INST

Blasting method for interval charging of mine

A blasting method for interval charging of a mine comprises the following steps that S1, according to mine geological survey data and blasting design requirements, construction parameters of blast holes are determined, and the blast holes are drilled; s2, a polyethylene or polypropylene bag body which is matched with the blast hole and has the tensile strength larger than or equal to 15 MPa is selected, the bag body is arranged along the hole wall of the blast hole in a sleeving mode, the bag body is tightly attached to the hole wall, and a bag opening extends out of a hole opening of the blast hole; and S3, an interval charging mode is adopted. The double effects of blast hole wall protection and explosive moisture prevention are achieved through the bag body, a traditional high-cost sleeve is replaced, and flexibility and practicability are both achieved. Explosive energy distribution is optimized by combining a layered interval charging structure, the energy utilization rate is improved, and explosive unit consumption is reduced; a collaborative plugging effect is formed through a standardized filling and plugging design and the plastic woven bags, matched millisecond detonation parameters are matched, safety risks such as blasting vibration and flying rocks are effectively controlled, and finally safety, high efficiency and low cost of geological condition development mine blasting operation are achieved.
Owner:BAOJI ZHONGXI JINLINGHE CEMENT CO LTD

Foundation pit blasting intelligent vibration reduction method and system based on digital twinning, and medium

ActiveCN121540029BDigital data protectionBlastingIntelligent designClosed loop
The application discloses a kind of based on digital twinning foundation pit blasting intelligent damping method, system and medium, the method is by constructing an integrated " perception-prediction-generation-regulation " intelligent closed loop, built-in online correction neural network intelligent fluctuation theory model, realizes the dynamic high-precision deduction of wave propagation;Proposed fusion strain energy and kinetic energy dissipation topology optimization objective function, realizes the automatic generation of damping structure from macro layout to micro composite material distribution;Adopt the edge reinforcement learning based on attention mechanism, realize millisecond level self-adaptive precision control.System, through the cooperation of digital twinning engine, intelligent design brain, edge control node and block chain storage platform, realize the digitization, intelligentization and credibility of whole process.The application significantly improves the scientificity, precision and adaptive ability of blasting vibration control.
Owner:CHINA TIESIJU CIVIL ENGINEERING GROUP CO LTD +1

A method for coordinated control of vibration amplitude and frequency in blasting during tunnel excavation with small clearance

This invention discloses a method for coordinated control of blasting vibration amplitude and frequency in tunnel excavation with small clearance, comprising the following steps: (1) eccentrically arranging slotting holes on the tunnel face and arranging auxiliary holes in a ring from the slotting area toward the tunnel design outline, with the spacing between auxiliary holes gradually decreasing; (2) adjusting the slotting holes to detonate from the bottom to the top, appropriately increasing the inter-hole delay on the side away from the interbedded rock and appropriately decreasing the inter-hole delay on the side closer to the interbedded rock; (3) specifically conducting blasting vibration monitoring in typical areas of the near and middle-far blasting zones, such as the interbedded rock sidewalls and arches, and simultaneously feeding back the monitoring results of blasting vibration amplitude and frequency; (4) simultaneously determining whether the blasting vibration amplitude and frequency meet the safety control requirements; (5) optimizing and adjusting the position of the blasting holes and the detonation network on the tunnel face according to steps (1) and (2) until the blasting vibration amplitude and frequency meet the safety requirements. The method of this invention reduces the high-frequency vibration amplitude of the surrounding rock near the tunnel face and adjusts the amplitude and frequency of the far-field tunnel face, avoiding low-amplitude resonance amplification. This effectively controls blasting vibration in tunnels with small clearances, especially in interbedded rock. The method of this invention is practical, feasible, and simple to operate.
Owner:RAILWAY CONSTR RES INST OF CHINA ACAD OF RAILWAY SCI CO LTD +2

Construction method for adding ore transfer rubber belt way during capital construction period

The application discloses a construction method for adding an ore transfer rubber belt way during capital construction, which comprises the following steps: adopting a composite protection structure to fully close and protect a through section of an existing rubber belt way, fixing existing cables and optical fibers in the rubber belt way, adopting a mechanical crushing and rock drilling method to excavate a section near a mine portal, and performing anchor net support, adopting a multiple cycle blasting method to excavate a normal section of the rubber belt way, excavating an upper part of a transfer station chamber, and performing anchor net support, excavating a lower part of the transfer station chamber, and performing anchor net support, monitoring the displacement of surrounding rocks of the section near the mine portal, the normal section of the rubber belt way and the transfer station chamber, waiting for the deformation of the surrounding rocks to be stable, performing permanent lining on a straight wall section, performing permanent lining on an arch section, finally performing permanent lining on a bottom plate section, and installing rubber belt way equipment, so that the influence of blasting on existing facilities is reduced to the minimum, the peak value of blasting vibration is effectively reduced, and the disturbance of one-time full-face blasting on adjacent facilities is solved.
Owner:JCC YINSHAN MINING CO LTD

Blasting vibration waveform feature extraction and damage range intelligent calibration method and system

The application provides a blasting vibration waveform feature extraction and damage range intelligent calibration system. In the application, a waveform irregularity sequence is calculated based on original vibration waveform data; then, a structure surface strain vibration wave is collected by a fiber grating sensor network, and the spatial distribution information of the strain change rate is mapped to a feature enhancement channel; then, a coding and decoding structure is used to learn a feature distribution pattern based on the processed waveform data of the feature enhancement channel, and a reconstruction operation is performed on the current blasting vibration waveform accordingly; by comparing the actual waveform irregularity sequence with the reconstructed sequence, an amplified abnormal feature difference is identified, and a reconstructed error peak value distribution is generated; finally, when the strain gradient mutation point position detected by the fiber sensor network and the reconstructed error peak point space coincide, a blasting damage area heat map is generated based on the coincidence point space density. The application improves the accuracy and reliability of blasting damage range calibration.
Owner:LIAONING ANDA BLASTING ENG CO LTD

Blasting warning range generation and alarm method and system based on three-dimensional geologic model

PendingCN121808171AData processing applicationsBlastingLongitudeTopographic factor
The invention discloses a blasting warning range generation and alarm method and system based on a three-dimensional geological model. The method comprises the steps of generating a three-dimensional visual model of a muck pile in a three-dimensional geologic model of a target mining area according to acquired parameters and latitude and longitude coordinates of the muck pile; the parameters of the muck pile comprise parameters of each blast hole and arrangement parameters of a plurality of blast holes; determining a plurality of edge blast holes according to the parameters and latitude and longitude coordinates of the muck pile; generating a blasting warning range of the muck pile based on the blasting vibration distance and the blasting shock wave distance of the plurality of edge blast holes and the blasting flying stone distance combined with the influence of a down-slope or down-slope topographic factor; generating a warning time period of the blasting warning range according to the obtained warning time parameter; and monitoring whether an object enters the blasting warning range or not in real time within the warning time period, and giving an alarm when finding that the object enters the blasting warning range. According to the invention, scientific, automatic generation and intelligent monitoring alarm of a blasting warning range can be realized.
Owner:XIAN YOUMAI INTELLIGENT MINE RES INST CO LTD