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The Woodsmith Mine Tunnel (also known as a Mineral Transport System [MTS]) is a 23-mile (37 km) long tunnel that will stretch between Woodsmith Mine at Sneatonthorpe near Whitby in North Yorkshire and the Wilton International complex on Teesside, England.The tunnel has been in development since 2016, but cutting of the tunnel bore did not start until April 2019, with an expected finish date of ...
Tunneling equipment position calibration method and system adopting cursor frame
The invention discloses a tunneling equipment position calibration method and system adopting a cursor frame, and relates to the technical field of coal mine tunnel construction tagging. Geologic feature data in a coal mine tunnel are collected in real time through a dynamic environment data set, an environment adaptability index Szp is calculated, and the influence of the environment on equipment calibration is evaluated; a calibration error evaluation coefficient Gz and an error growth trend value Wczs are combined, a calibration strategy is dynamically optimized, adaptive filtering and a multi-modal fusion algorithm are adopted to improve positioning precision, and stable work in an environment with large geological change is ensured; meanwhile, calibration parameters are adjusted in real time by using a deep learning model and a self-adaptive path calibration algorithm, and the adaptability to complex geological conditions is enhanced; the interference compensation module processes electromagnetic interference through Kalman filtering, particle filtering and other algorithms, optimizes the error coefficient Ins of the inertial navigation system, corrects the deviation of the sensor, reduces the influence of external interference on the calibration precision, and guarantees the high precision and stability of the system.
Owner:成都天地直方发动机有限公司 +1
Mine tunnel operation period deformation monitoring method and system
PendingCN119507981AGuaranteed immediacyImprove real-time performanceMining devicesMeasurement devicesTransmission technologyDeformation monitoring
The invention discloses a mine tunnel operation period deformation monitoring method and system, and relates to the technical field of mine tunnel monitoring, and the method comprises the following steps: carrying out the real-time monitoring of the deformation condition in a mine tunnel through a sensor device, and transmitting the collected monitoring data to a data processing center through a wireless transmission module. Real-time monitoring of mine tunnel deformation is achieved through the multiple sensors and the wireless transmission technology, the problem of data lag is solved, and monitoring accuracy and timeliness are improved. And in combination with a multi-objective optimization algorithm, the system automatically adjusts key parameters such as a supporting structure and a mining sequence according to real-time data, so that an optimal safety control scheme is ensured. According to the system, the operation efficiency and safety are improved, manual misjudgment is reduced, and the control strategy can be continuously optimized according to the operation stage.
Owner:SHAANXI COAL CAOJIATAN MINING CO LTD +1
Multi-modal data fusion coal mine tunnel simultaneous positioning and mapping method and system
InactiveCN119289967Aprecise positioningInternal combustion piston enginesNavigation by speed/acceleration measurementsTransit systemMulti modal data
The invention belongs to the technical field of coal mine underground automatic driving, and provides a coal mine tunnel simultaneous positioning and mapping method and system based on multi-modal data fusion in order to solve the problem of reliable positioning and navigation of an automatic driving vehicle in a large coal mine underground tunnel. According to the invention, a high-precision mine environment three-dimensional point cloud map of a unified navigation coordinate system in a global range from a mine ground plaza to an underground haulage roadway can be established, and the six-degree-of-freedom pose of an underground autonomous vehicle is calculated. Accurate positioning of the underground automatic driving vehicle in a degraded environment such as the coal mine underground roadway is achieved, a coal mine underground roadway simultaneous positioning and mapping system is built, the posture state of the underground automatic driving vehicle can be accurately estimated in an underground space where global satellite navigation signals are lacked, the underground accurate positioning requirement is met, and the positioning accuracy of the underground automatic driving vehicle is improved. The method is of great significance in realizing application of intelligent unmanned transportation equipment in underground coal mines and promoting intelligent and unmanned construction of coal mine auxiliary transportation systems.
Owner:SHANXI TIANDI COAL MINING MACHINERY +1
Mobile tunnel detection method and system
The invention discloses a mobile tunnel detection method and system, and relates to the field of tunnel detection, and the method comprises the steps: dividing a tunnel into a shield tunnel and a mine tunnel; for a shield tunnel, obtaining a three-dimensional point cloud of the shield tunnel, and extracting bolt holes by adopting a CSF algorithm and a DBSCAN algorithm; adopting a mean-shift algorithm to obtain a central point of the bolt hole, and performing ring-dividing and block-dividing on the three-dimensional point cloud of the shield tunnel according to the central point of the bolt hole to obtain a shield tunnel point cloud after ring-dividing and block-dividing; the method comprises the following steps of: for a mine tunnel, arranging one target every preset distance along the axial direction of the tunnel by using mobile tunnel laser equipment for target arrangement to obtain a mine tunnel point cloud with target position information; generating a mine tunnel lining diagram according to the mine tunnel point cloud with the target position information; establishing an index relationship between the mine tunnel point cloud and the mine tunnel lining graph; and positioning the mine tunnel point cloud according to the index relationship to obtain the positioned mine tunnel point cloud and the like, so that the tunnel defect detection efficiency is improved.
Owner:BGI ENG CONSULTANTS
Method and equipment for training intelligent prediction model of tunnel surrounding rock strength of full face tunnel boring machine
ActiveCN119272631AImprove forecast accuracyeffective predictionEnsemble learningKernel methodsData ingestionData set
The invention provides a full face tunnel boring machine tunnel surrounding rock strength intelligent prediction model training method and equipment. A model capable of effectively predicting coal mine tunnel TBM tunneling tunnel surrounding rock point load strength can be trained. The method comprises the following steps: acquiring first original data corresponding to a target heading machine; removing data of the target heading machine in a stop section and an empty pushing section in the first original data to obtain second original data; processing an abnormal value in the second original data to obtain target operation data; feature parameters in the target operation data are extracted; performing normalization processing on the feature parameters to obtain a model training data set; a Stacking algorithm model is constructed according to a base learner and a meta learner, the base learner comprises a plurality of regression trees, and the output result of the base learner is used as the input of the meta learner; and training the Stacking algorithm model based on the model training data set so as to obtain the prediction model for the surrounding rock strength of the tunneling roadway of the full-face tunneling machine.
Owner:WUHAN UNIV +4
Mine gas regulation and control method and equipment based on multi-modal data and medium
The embodiment of the invention discloses a mine gas regulation and control method and device based on multi-modal data and a medium, and relates to the technical field of gas regulation and control, and the method comprises the steps that multi-source real-time sensing data, roadway point cloud data and CFD airflow simulation grid data in a target mine roadway are obtained, space-time alignment is carried out to determine a real-time roadway data cube, and the real-time roadway data cube is obtained; determining gas concentration field distribution and causal contribution popularity data in a preset future time window through a multi-mode depth causal model and the real-time roadway data cube; generating a risk field gradient feature vector based on gas concentration field distribution and causal contribution popularity data, and matching a decision path according to the risk field gradient feature vector; and when the decision path is a causal decision path, a fan / air door adjusting target point is determined, the fan / air door adjusting target point is simulated to determine a dynamic safety constraint boundary, a preset optimization objective function is solved to generate a fan rotating speed adjusting instruction and an air door opening degree control instruction, and fan / air door control is achieved.
Owner:山东浪潮智能生产技术有限公司
Construction quality monitoring management method for underground mine roadway supporting device
InactiveCN119313273AImprove effectivenessImprove stabilityMining devicesOffice automationArchitectural engineeringConstruction management
The invention discloses a construction quality monitoring management method for an underground mine roadway supporting device, and relates to the technical field of roadway supporting management, and the method comprises the steps: determining the basic information of the roadway supporting device based on a construction drawing; configuring construction monitoring standards according to the basic information, and transmitting the construction monitoring standards to the central control module to analyze and determine working condition monitoring parameters; determining real-time monitoring data; abnormal working condition analysis and risk point prediction are carried out on the real-time monitoring data, and construction working condition deviation information of the roadway supporting device is determined; according to the construction working condition deviation information, a calibration compensation scheme of the roadway supporting device is formulated, and real-time construction management is carried out. The technical problems of poor effectiveness and stability of the supporting device caused by incomplete monitoring of supporting construction information, untimely reaction and inaccurate data analysis in the construction quality monitoring management of the existing underground mine roadway supporting device are solved. The technical effects of improving the construction quality, the construction efficiency and the effectiveness and the stability of the supporting device are achieved.
Owner:NORTH CHINA INSTITUTE OF SCIENCE & TECHNOLOGY (NATIONAL SAFETY TRAINING CENTER OF COAL MINES)
Mining receding energy absorption component and coal mine tunnel supporting structure and method
The invention discloses a mining receding energy-absorbing component and a coal mine roadway supporting structure and method, relates to the field of coal mine roadway supporting structures in underground engineering, solves the problem that large deformation and high bearing capacity cannot be unified in the roadway supporting process in the prior art, and has the beneficial effects that energy is fully absorbed, and the bearing capacity is guaranteed. According to the specific scheme, the mining receding energy-absorbing component comprises at least two energy-absorbing surface layers, every two adjacent energy-absorbing surface layers are connected through a supporting connecting rod, the supporting connecting rods have set rigidity, the energy-absorbing surface layers are made of flexible deformable materials, each energy-absorbing surface layer comprises a plurality of unit cell units, and the unit cell units are arranged in multiple rows and multiple columns. Every two adjacent unit cell units in each row are connected, every two adjacent unit cell units in each column are connected, each unit cell unit comprises a plurality of arc-shaped pieces, the opening direction of the arc-shaped pieces is far away from the center of the unit cell unit, the arc-shaped pieces are sequentially connected clockwise to form the unit cell unit, and every two adjacent unit cell units of the same energy absorption surface layer are connected through the arc-shaped pieces.
Owner:CHINA UNIV OF MINING & TECH (BEIJING)
Coal mine tunneling working method based on digital twin system
The invention is applicable to the technical field of coal mine tunneling, and provides a coal mine tunneling working method based on a digital twinning system, which comprises the following steps: S1, constructing a three-dimensional dynamic geological twinning model integrating geological radar, measurement while drilling and optical fiber sensing; s2, in the three-dimensional dynamic geological twinborn model, rock stratum characteristic changes are predicted through a digital twinborn body, and a self-adaptive cutting control instruction is generated; s3, simulating gas diffusion and roof stress distribution in real time while the control instruction is sent out, and triggering a grading early warning mechanism; s4, optimizing cutting parameters and emergency plans in a virtual environment according to early warning conditions, reversely controlling physical equipment, setting geological-equipment two-way closed-loop control, breaking through a traditional one-way data acquisition mode, realizing real-time two-way interaction between a geological model and tunneling equipment, establishing a digital twinning driven tunneling process parameter optimization standard library, and realizing real-time two-way interaction between the geological model and the tunneling equipment. Data support is provided for iteration of the technology, and improvement of coal mine tunneling work is facilitated.
Owner:JIMAO BY COAL SHANGHAI ELECTRICAL & MECHANICAL SERVICES CO LTD
Grouting reinforcement device for coal mine tunnel
The invention discloses a coal mine tunnel grouting reinforcement device, and relates to the technical field of tunnel grouting reinforcement, the coal mine tunnel grouting reinforcement device comprises grouting equipment, and the upper and lower sides of the grouting equipment are symmetrically fixed with pushing cylinder bodies; the adjusting cylinder bodies are symmetrically hinged to the upper side and the lower side of the grouting equipment; the number of the connecting plates is two, one ends of the connecting plates are hinged to the two pushing cylinder bodies correspondingly, and the other ends of the connecting plates are hinged to the adjusting cylinder bodies correspondingly; the telescopic equipment is fixed to the side, close to the connecting plate, of the grouting equipment; the supporting assembly is fixed to the output end of the telescopic equipment; and the grouting assembly is arranged in the supporting assembly in a sliding mode, penetrates through the telescopic equipment and drives stretching and grouting operation through the grouting equipment, the situation that primary grouting is extruded unevenly during secondary grouting can be avoided, gas in grout can be discharged easily, and the situation that the reinforcing effect is affected due to the fact that holes appear is avoided.
Owner:SHANDONG PROVINCIAL COAL GEOLOGICAL PLANNING EXPLORATION & RES INST
Strong mining roadway thick-layer transboundary supporting method
The invention relates to a strong mining roadway thick-layer transboundary supporting method, and belongs to the technical field of roadway supporting, and the method comprises the steps that geometric parameters, rock mass mechanical parameters and stress field parameters of a strong mining roadway are obtained; based on the geometric parameters, the rock mass mechanical parameters and the stress field parameters, the deformation process and the damage process of the strong mining roadway surrounding rock are simulated, and the incidence relation between each deformation stage of the strong mining roadway surrounding rock and the roof partition damage characteristic is obtained; determining a key stage of irreversible deformation of the strong mining roadway surrounding rock based on the association relationship; determining the critical time of transboundary anchoring of the thick layer based on the key stage; determining the support parameters of the anchor rod and the critical anchoring length of the thick layer transboundary; and supporting the top plate of the strong mining roadway based on the critical time, the supporting parameters and the thick-layer transboundary anchoring length. The method has the effect of improving the stability of the strong mining roadway surrounding rock.
Owner:SHAANXI CHANGWU TINGNAN COAL IND CO LTD
Coal mine tunnel high-stress area unloading, transferring and absorbing danger relieving method
The invention relates to the technical field of coal mine safety mining, and discloses a coal mine roadway high-stress area unloading-to-suction danger relieving method which comprises the following steps: step 1, a pressure relief stage: drilling holes in a roadway high-stress area to form a pressure relief channel; 2, a transfer stage, wherein stress is transferred to the deep part of the coal rock mass through the layout of the drill holes; and (3) an energy absorption stage: an energy absorption device is installed in the drill hole, the device comprises an outer steel pipe, an internal high polymer material and a monitoring element, the diameter of the drill hole in the step (1) is 50-150mm, the depth of the drill hole is 5-20m, a one-time hole forming process is adopted for construction, and the drill hole is formed in a high stress concentration area which is 6-20m away from the surface of the roadway and is arranged at intervals in the axial direction of the roadway. By constructing a pressure relief-transfer-energy absorption three-stage synergistic effect system, the whole-process dynamic regulation and control of the surrounding rock stress of the roadway is realized, and the problem that the pressure relief effect is uncontrollable due to the fact that a stress transfer path is not clear in the prior art is effectively solved.
Owner:INNER MONGOLIA UNIV OF SCI & TECH
Anchor rod type mine roadway surrounding rock stress monitoring system and method
The invention discloses an anchor rod type mine laneway surrounding rock stress monitoring system, which comprises a hollow anchor rod, a high-precision strain rosette, a strain collector, a gateway, fault prediction and health management software and a server, and is characterized in that the rod body of the hollow anchor rod is of a hollow structure, the high-precision strain rosette is fixed in the hollow rod body, and the strain collector is fixed in the hollow rod body; the strain collector communicates with the gateway through an RS485 bus, the gateway communicates with the fault prediction and health management software and the server in an optical fiber mode, a hollow anchor rod supporting product which is most commonly used at present is utilized in the scheme, the high-precision resistance type strain gauge is arranged in the hollow anchor rod supporting product, the installation form is consistent with that of an anchor rod, and the high-precision resistance type strain gauge can penetrate into a rock stratum; the distributed roadway surrounding rock stress monitoring system is formed, the mine roadway surrounding rock stress change condition can be accurately and comprehensively monitored and pre-warned in real time, different pre-warning signals are sent out in advance, maintenance workers are supervised and urged to take reinforcement measures or evacuate in time, and therefore collapse accidents are avoided.
Owner:SHANGHAI DONGHAO TEST TECH
Method and system for evaluating supporting strength of coal mine tunnel
The invention discloses a coal mine tunnel support strength evaluation method and system, and the method comprises the following steps: carrying out the actual modeling of a coal mine tunnel according to a field project through FLAC3D numerical simulation software; under the condition of no ground stress, endowing elastic model parameters to the model and calculating balance; designing different supporting schemes, applying pre-tightening force and calculating balance; determining a low stress threshold value corresponding to a roadway surrounding rock unstable layer and a high stress threshold value corresponding to roof fracture instability, and calculating the low stress threshold value and the high stress threshold value by combining the volume weight of the rock sample obtained by field sampling; respectively calculating a high stress volume and a low stress volume; defining the lowest pressure stress efficiency, the lowest standard pressure stress volume and the pressure stress efficiency, and obtaining the lowest standard pressure stress volume according to the supporting strength of different schemes; the higher the lowest pressure stress efficiency, the higher the pressure stress efficiency and the lowest standard pressure stress volume are, the better the supporting effect of the anchor rod and / or the anchor cable is, and otherwise, the poorer the supporting effect is.
Owner:CHINA UNIV OF MINING & TECH
Anti-collision early warning method for underground coal mine tunnel environment based on laser radar
PendingCN119439192ANavigation by speed/acceleration measurementsElectromagnetic wave reradiationSimulationLidar point cloud
The invention relates to the technical field of underground coal mine auxiliary transportation, in particular to an underground coal mine tunnel environment anti-collision early warning method based on a laser radar, and the method comprises the following steps: obtaining point cloud data through the laser radar; motion compensation is carried out on the laser radar point cloud data by using IMU data; filtering out the carrier point cloud; a top plate height threshold value is set, and point clouds with higher heights are top plate point clouds and are filtered; filtering out the ground point cloud; filtering out the roadway wall point cloud; clustering the obstacle point clouds; and the information of the obstacles and the roadway wall is sent out, and anti-collision early warning is carried out. According to the invention, by filtering the point clouds of the carrier, the top plate, the noise points, the segmentation ground points, the roadway wall and the obstacles, the surrounding environment and obstacle conditions of the carrier can be accurately judged, the system can be directly applied underground, the problem that the existing anti-collision system for the coal mine roadway environment has many false alarms can be effectively solved, and the anti-collision efficiency is improved. And the poor body feeling of the driver caused by excessive false alarms is avoided.
Owner:TIANDI CHANGZHOU AUTOMATION +1
Rock burst multi-level monitoring and early warning method and device based on coal mine tunnel deformation
The invention relates to a rock burst multi-level monitoring and early warning method and device based on coal mine tunnel deformation. The method comprises the following steps: acquiring three-dimensional coordinate data and historical data of a to-be-monitored coal mine tunnel surrounding rock at a current time node, and generating a contour model of the to-be-monitored coal mine tunnel surrounding rock at the current time node by using the three-dimensional coordinate data; the three-dimensional coordinate data and the historical data are utilized to determine the time change imbalance degree and the space change discordance degree of energy corresponding to each grid in the contour model; determining a rock burst danger coefficient by using the imbalance degree and the discordance degree corresponding to the grids, and outputting early warning information based on the rock burst danger coefficient; and under the condition that the rock burst danger coefficient of the grid does not meet a first preset condition, performing hierarchical grid division processing on the grid, and returning to execute the step of obtaining the three-dimensional coordinate data of the surrounding rock of the coal mine tunnel to be monitored and the calculation step. According to the scheme, the accuracy and timeliness of rock burst early warning are improved.
Owner:CCTEG COAL MINING RES INST +1
Large-pipe-diameter-range pipeline installation mechanical clamping jaw suitable for coal mine underground roadway
ActiveCN119238596Asmall footprintLarge diameter rangeGripping headsHydraulic cylinderUnderground tunnel
The invention belongs to the technical field of underground coal mine pipeline installation, and particularly relates to a large-pipe-diameter-range pipeline installation mechanical clamping jaw suitable for an underground coal mine roadway, which comprises a fixed installation part, a fixed jaw, a movable jaw, a fixed hydraulic cylinder and a movable hydraulic cylinder. Pipelines with different diameters in a large pipe diameter change range can be grabbed; six groups of rubber rollers are mounted on the fixed jaw and the movable jaw, and at least one group of driving rubber rollers capable of actively rotating can extrude the pipeline and drive the pipeline to roll in the clamping jaw through extrusion contact of the rubber rollers and the pipeline, so that the relative position of a pipeline mounting flange bolt hole is adjusted, and smooth butt joint and bolt insertion are facilitated. The device has the characteristics of small structural space, wide pipe diameter range and convenience in operation.
Owner:SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
Patrol robot for pneumatic conveying pipeline
InactiveCN120024419AAnalysing solids using sonic/ultrasonic/infrasonic wavesHollow article cleaningTransmission beltControl engineering
The invention relates to the technical field of pipeline detection, in particular to an inspection robot for a pneumatic conveying pipeline. Comprising a base, and a mounting rod is mounted at the upper end of the base; a connecting hole is formed in the surface of the mounting rod; the surface of the mounting rod is sleeved with a ring sleeve; through the arrangement of the clamping plates and the transmission belt, the clamping plates clamped on the pneumatic conveying pipeline can drive the transmission belt to be tightly attached to the outer wall of the pneumatic conveying pipeline through the mounting shell, so that the transmission belt attached to the pneumatic conveying pipeline can drive the mounting shell to move along the pneumatic conveying pipeline; the electromagnetic ultrasonic flaw detector mounted on the clamping plate can detect flaws of the pneumatic conveying pipeline in real time; therefore, an inspector does not need to use inspection equipment to uninterruptedly inspect the pneumatic conveying pipeline in the coal mine tunnel, the working safety of the inspector is ensured, meanwhile, the problem of omission or detection errors caused by fatigue or negligence of the inspector is avoided, and the detection accuracy of the pneumatic conveying pipeline is improved.
Owner:ANHUI UNIV OF SCI & TECH
Method and device for monitoring and early warning stability of surrounding rock of coal mine tunnel
The invention provides a coal mine roadway surrounding rock stability monitoring and early warning method and device, and relates to the technical field of roadway safety monitoring. Acquiring a plurality of monitoring values respectively corresponding to each monitoring index monitored by a plurality of continuous observation stations of the roadway in the current monitoring period; based on the plurality of monitoring values of each monitoring index and historical monitoring data of each observation station, determining a plurality of parameter values corresponding to each monitoring index of each observation station; determining a parameter threshold value of each parameter value of each monitoring index; determining a risk level corresponding to each monitoring index of each observation station based on a parameter threshold value of each parameter value of each monitoring index and each parameter value of the corresponding monitoring index of each observation station; and determining the risk level distribution of the roadway based on the risk level corresponding to each monitoring index of each observation station. Therefore, scientific monitoring and early warning of roadway surrounding rock instability are realized, and timeliness and accuracy of coal mine roadway surrounding rock stability monitoring and early warning are improved.
Owner:CCTEG COAL MINING RES INST
Coal mine tunnel floor heave prevention and control method based on bottom plate blasting pressure relief
The invention relates to the field of coal mine tunnel deformation control, in particular to a coal mine tunnel floor heave prevention and treatment method based on bottom plate blasting pressure relief, which comprises the following steps: S1, determining a coal seam side support pressure curve and a coal pillar or entry retaining filling body side support pressure curve of a mining tunnel; the Rankine soil pressure theory is introduced to analyze the stress characteristics of a bottom plate of the mining roadway, and the coal seam side sliding body range and the coal pillar or entry retaining filling body side sliding body range are determined; s2, determining a blasting pressure relief rock stratum in the bottom plate; s3, determining a blasting pressure relief range; and S4, blasting is conducted on the determined blasting pressure relief range through blasting pressure relief drill holes. According to the method, the blasting pressure relief area is selected from the thick and hard coal seam bottom plate and is close to the sliding body, and floor heave prevention and control can be carried out on the basis of constructing the blasting pressure relief area in the minimum range; meanwhile, after the Rankine soil pressure theory is introduced to determine the slippage body, the reasonable blasting pressure relief area range is determined based on the slippage body and the supporting pressure.
Owner:INNER MONGOLIA RESEARCH INSTITUTE CHINA UNIVERSITY OF MINING AND TECHNOLOGY (BEIJING) +1
Intelligent oxygen supply adjusting system for mining working face
PendingCN119664425Aprevent leakagemake sure to enterMining devicesSafety equipmentsMining engineeringProcess engineering
The invention relates to the technical field of mining oxygen supply regulation, in particular to a mining working face intelligent oxygen supply regulation system which comprises oxygen supply equipment, air purification equipment is arranged on one side of the oxygen supply equipment, one end of the oxygen supply equipment and one end of the air purification equipment are both connected with connecting pipes, and one sides of the two connecting pipes are jointly connected with air hole regulation equipment. And one side of the air hole adjusting equipment is connected with an air supply pipe, and fan equipment is installed at one end of the air supply pipe. Air can be effectively purified through the effect of the purification assembly, disassembly and replacement are convenient, the gas condition in the mine tunnel can be effectively monitored so that whether gas supply is conducted or not can be rapidly controlled, meanwhile, the oxygen content can be controlled, the safety in the mine tunnel is guaranteed, gas can be fully supplied to workers in the mine tunnel, and the working efficiency is improved. And fixed-point oxygen supply can be carried out according to the conditions in the mine tunnel, and the gas quality in the mine tunnel is improved.
Owner:CHINA SHENHUA ENERGY CO LTD SHENDONG COAL BRANCH +1
Roadway surrounding rock roof separation polling and early warning system based on multi-source information fusion
The invention, which belongs to the technical field of mine safety monitoring, provides a multi-source information fusion-based roadway surrounding rock roof separation tour-inspection early-warning system comprising a data acquisition module, an edge calculation module, a cloud analysis module and an early-warning feedback module. The data acquisition module acquires multi-source data of surrounding rock of a coal mine tunnel in an automatic mode; the edge calculation module performs spatio-temporal data synchronization on the collected multi-source data and extracts data features; the cloud analysis module performs feature weighted fusion based on the multi-source data to construct a risk early warning model; and the early warning feedback module triggers graded early warning according to prediction data of the risk early warning model, and provides visual feedback, so that a set of automatic, full-coverage and multi-source data fused roadway roof separation monitoring system is constructed.
Owner:HUAINAN MINING IND GRP +1
Complex roadway network center line calculation method based on skeleton shrinkage
The invention discloses a complex roadway network center line calculation method based on skeleton contraction, belongs to the technical field of underground mine three-dimensional modeling and point cloud data processing, is used for complex roadway network center line calculation, and comprises the following steps: establishing a neighborhood set of KDTree acquisition points for underground mine roadway point cloud data; calculating geometric features and neighborhood distances of the points according to the neighborhood point set; iteratively shrinking the underground mine roadway point cloud data; skeleton refinement is carried out according to geometric features of each shrinkage skeleton point, and discrete noise points are removed by combining an octree filtering method; processing the intersection area point set by using a principal component method and a DBScan algorithm, judging the type of the intersection, and performing center point refined calculation on each intersection; and the disordered center points are fitted into an ordered center line. According to the method, the integral roadway center line of underground mine well and roadway engineering can be accurately calculated, complex structural characteristics of crossing and staggering are overcome, and refined calculation is achieved for different roadway intersection types.
Owner:SHANDONG UNIV OF SCI & TECH
Intelligent integrated automatic pollution discharge, spray and dust suppression system for coal mine tunnel
The invention discloses an intelligent integrated automatic pollution discharge, spray and dust suppression system for a coal mine tunnel, and relates to the technical field of automation. The system comprises a double-channel sensing assembly, a central controller, a mine communication link and an integrated pollution discharge spraying terminal group, the central controller obtains a dust image and a ground height image at the same time in combination with the double-channel sensing assembly, generates a roadway working condition grid map, completes dust level marking and ground height marking, extracts a dust cluster and a transition zone on the basis, and loads a pollution discharge component list. Constructing a descending chain from the outer edge of the dust cluster, selecting a ridge chain backbone, finally generating a cooperative control instruction set, issuing the cooperative control instruction set to the integrated pollution discharge spraying terminal group, and carrying out snapshot acceptance check by using a dual-channel sensing assembly after execution. According to the invention, accurate dust control, smooth sewage discharge and high resource utilization rate can be ensured, and the stability and long-term effectiveness of system operation can be maintained in a complex environment.
Owner:北京科信智控科技有限公司
Coal mine tunnel surrounding rock catastrophe monitoring system and method
The invention belongs to the field of coal mine catastrophe monitoring, relates to a data analysis technology, is used for solving the problem that in the prior art, a monitoring means and a protection means of a coal mine tunnel cannot be matched and analyzed by combining historical monitoring data, and particularly relates to a coal mine tunnel surrounding rock catastrophe monitoring system and method. The catastrophe monitoring platform is in communication connection with a historical data statistics module, a historical data processing module, a catastrophe monitoring analysis module and a database; according to the method, the surrounding rock catastrophe historical monitoring data of the coal mine tunnel can be processed, the depth interval is formed after the mining depth value is processed, and then the matching objects of the depth interval are classified according to the monitoring means and the protection means; and finally, according to the monitoring effective value and the catastrophe state, a monitoring matching means and a protection matching means are marked, so that coal mine tunnels with different mining depths can be quickly matched with proper monitoring means and protection means, and the coal mining safety is ensured.
Owner:CHINA UNIV OF MINING & TECH
Coal mine tunnel support parameter processing system and method based on Internet of Things
PendingCN120633153ADesign optimisation/simulationSpecial data processing applicationsThe InternetData acquisition
The invention relates to the technical field of computer aided design, in particular to a coal mine roadway support parameter processing system and method based on the Internet of Things, and the system comprises a data collection and integration module which receives real-time environment information from an Internet of Things terminal, obtains roadway excavation contour data, front geological forecast data and field equipment state information, and sends the data to a data processing module; and generating a roadway model associated with the environment information. According to the method, the real-time monitoring data of the Internet of Things and the roadway support design process are fused, a dynamic closed-loop optimization mechanism is constructed in support parameter processing, and the reliability and adaptability of the support system are improved. Roadway excavation outline, geological forecast and equipment state data are collected in real time and directly embedded into the three-dimensional roadway model, so that support design basic parameters get rid of limitation of traditional static geological hypothesis, and the support strength can be corrected in advance according to the deformation trend of surrounding rock in front.
Owner:SHANDONG SANHEKOU MINE CO LTD
Mine roadway temporary supporting equipment and supporting method thereof
Owner:JINCHUAN GROUP NICKEL COBALT CO LTD
An intelligent evaluation model and method for coal mine tunnel safety
The present invention discloses an intelligent evaluation model and method for coal mine roadway safety, which relates to the technical field of coal mine roadway safety evaluation. The model includes a data acquisition and preprocessing module, a tunneling working section roof safety evaluation module, a tunneling impact section safety evaluation module, a mining impact section safety evaluation module, and a roadway safety evaluation response feedback module. The present invention realizes real-time monitoring and dynamic evaluation of coal mine roadway safety by adding laser radar, anchor stress gauge, anchor cable stress gauge, roof separation meter and other equipment to the main equipment and anchor materials of the coal mine roadway through multivariate data fusion analysis. By proposing eight evaluation indicators under the three roadway usage scenarios of tunneling working section, tunneling impact section and mining impact section, the safety of coal mine roadways can be dynamically analyzed, monitored in real time, and timely feedback can be provided to ensure the safety and stability of coal mine roadways during their use cycle, thus solving the problem of difficult roadway safety evaluation.
Owner:CHINA UNIV OF MINING & TECH +1
Mining inspection method and system based on ventilation parameter monitoring
The invention provides a mining inspection method and system based on ventilation parameter monitoring, and relates to the technical field of data processing. The method comprises the following steps: constructing a mine tunnel three-dimensional model according to mine tunnel structure information, and generating an optimal inspection path based on the mine tunnel three-dimensional model and distribution characteristics of a monitoring area; the inspection robot is controlled to conduct autonomous inspection based on the optimal inspection path, and mine ventilation parameters collected by the inspection robot are received; according to roadway section information acquired by the inspection robot, mine ventilation parameters corresponding to all wind measurement points in the section are determined, a wind flow distribution feature map is generated, and a ventilation abnormal area is recognized based on the feature map; and constructing a ventilation parameter time sequence model corresponding to the preset wind measurement point based on the mine ventilation parameters, performing ventilation parameter prediction by using the time sequence model, and determining a potential risk area according to a prediction result. According to the technical scheme, the accuracy and comprehensiveness of mine ventilation monitoring can be improved.
Owner:HEILONGJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
Single spiral strut for top coal caving and recycling
The single spiral supporting column comprises a supporting column body, a supporting cylinder and a protective cylinder, a first adjusting cylinder is movably inserted into the top of the supporting cylinder, a first sleeve is movably inserted into the top of the first adjusting cylinder, the bottom of the supporting column body is movably inserted into the first sleeve, and a stabilizing mechanism is arranged on the supporting cylinder; a first adjusting cylinder is movably inserted in the supporting cylinder, a protective cylinder is movably inserted in the first adjusting cylinder, a second adjusting cylinder is movably inserted in the protective cylinder, a second sleeve is movably inserted in the second adjusting cylinder, a supporting column top is movably arranged in the second sleeve, and limiting mechanisms are arranged on the supporting cylinder, the protective cylinder, the first adjusting cylinder and the second adjusting cylinder. The top wall of the protection cylinder can be more tightly attached to the inner top wall of the mine tunnel by only needing one worker to step on one supporting leg with one foot and then rotating the rotating rod on the supporting column with two hands, the stability of the whole device can be guaranteed through the overall structure, meanwhile, the supporting procedure can be completed by one person, the labor cost is saved, and more time and labor are saved.
Owner:HUAIBEI MINING CO LTD