474 results about "Tunnel wall" patented technology

The invention discloses a tunnel fracture recognition method based on three-dimensional live-action reconstruction and ordered re-acquisition of a virtual camera. The method specifically comprises the following steps: acquiring a multi-view rock fracture image; acquiring three-dimensional point cloud data of a tunnel wall surface according to the acquired rock mass fracture image, reconstructing a geometrical shape of the tunnel, mapping acquired texture information to a three-dimensional grid vertex through an image processing algorithm, and generating a three-dimensional tunnel model; setting parameters of the virtual camera, orderly collecting to form a virtual image, and enabling the position of the virtual camera to correspond to the real position of the model; and extracting information of the crack of the virtual image, and projecting the coordinates of the two-dimensional image back to the three-dimensional space through the projection matrix to obtain the space coordinates of the crack. A virtual image is generated by combining a texture mapping technology of a three-dimensional model, so that the limitation of a visual angle, illumination and space in actual image acquisition is overcome, and high-precision identification of tunnel cracks is realized.

A combined dust suppression system for a metal ore unloading station, and a using method. The combined dust suppression system consists of an ore unloading station tunnel wall surface accumulated dust high-pressure water flushing device, an ore unloading station tunnel floor spraying, watering, and wetting device, and an ore unloading station ore train floor bidirectional high-pressure spray dust suppression device. The ore unloading station tunnel wall surface accumulated dust high-pressure water flushing device is used for performing manual flushing on a tunnel by means of high-pressure water in the travel direction of an ore unloading train, the ore unloading station tunnel floor spraying, watering, and wetting device is used for performing spraying, watering, and wetting on the tunnel, and the ore unloading station ore train floor bidirectional high-pressure spray dust suppression device isolates dust generated during ore unloading at the ore unloading station. The water consumption can be reduced, excessive water in an ore unloading pit that causes adhesion and blockage can be effectively avoided, the field applicability of high-pressure spray dust suppression measures is improved, and on-demand spray dust removal of a high-pressure spray device is achieved; high-pressure water is used for flushing accumulated dust on the tunnel wall surfaces of ore unloading stations, and the tunnel floors of ore unloading stations are sprayed, watered, and wetted, thereby achieving significant comprehensive dust suppression and dust control effects, and notable energy-saving effects.

The invention discloses a tunnel dew formation and icing rapid monitoring method and system based on a space-time phase change cooperation mechanism, and relates to the technical field of tunnel engineering safety monitoring and freeze injury prevention and control. Establishing a tunnel geometric model and a heat-humidity-turbulence multi-field coupling physical model; synchronously acquiring heat and humidity physical property parameters and outdoor hourly meteorological parameters; taking the outdoor hourly meteorological parameters as Dirichlet boundary conditions and initial conditions of a heat-humidity-turbulence multi-field coupling physical model; determining a heat and humidity exchange coupling process of the tunnel wall surface and the internal environment, and defining heat and humidity transfer parameters under an unsteady state boundary; performing discretization processing on the tunnel geometric model by adopting a grid division strategy; by setting a dew point temperature threshold value and an icing temperature threshold value, a condensation risk area is judged, dynamic changes of the thickness of an ice layer are quantified, and monitoring of tunnel condensation and icing is achieved. The method can effectively reflect the distribution rule of multiple physical fields on the surface and in the tunnel in any time, accurately judge the risk area and quantify the thickness of the ice layer.

The utility model relates to blast hole drilling equipment for tunnel construction, and relates to the technical field of tunnel blast hole drilling, the blast hole drilling equipment comprises a base, rollers are arranged at the bottom of the base, a combined sliding rail is fixedly mounted on the base, and a translation table is slidably arranged on the combined sliding rail in the width direction of the base; a lifting table is arranged on the translation table in the height direction of the base in a sliding mode, a drill floor is arranged on the lifting table in the length direction of the base in a sliding mode, and a drill bit is rotationally arranged at the end, in the length direction of the base, of the drill floor. The tunnel drilling device has the effects that different width positions of the tunnel wall face can be conveniently drilled, the operation of re-aligning a drill bit is reduced, and the drilling efficiency is improved.

The invention relates to the technical field of tunnel engineering, in particular to a tunnel rockburst risk assessment method and prevention method, and the assessment method comprises the steps: installing a plurality of first micro-seismic sensors in the circumferential direction of a tunnel wall within a preset distance range behind a tunnel face, determining an initial rockburst range based on the micro-seismic data collected by the first micro-seismic sensor; and a plurality of second micro-seismic sensors are annularly installed on the tunnel wall corresponding to the initial rockburst range, the monitoring precision of the second micro-seismic sensors is higher than that of the first micro-seismic sensors, and the final rockburst position is determined based on micro-seismic data collected by the second micro-seismic sensors. The tunnel rock burst occurrence position can be finely determined, and hydraulic slotting pressure relief is guided.

The invention discloses a soft rock tunnel overexcavation backfill method, and relates to the technical field of tunnel construction.The soft rock tunnel overexcavation backfill method comprises the steps that a three-dimensional live-action image in a tunnel is scanned; establishing a three-dimensional live-action model according to the three-dimensional live-action image; establishing a digital twin model of the tunnel according to a design drawing; carrying out geometric intersection on the three-dimensional live-action model and the digital twin model to obtain geometric parameters of an overexcavation area; a concrete mold is subjected to 3D printing according to the geometric parameters of the overexcavation area; concrete is poured into the concrete mold, and a backfill body is formed; and the backfill body is backfilled to the overexcavation area. Due to the fact that the formed backfill body is tightly attached to the tunnel wall of the overexcavation area, the backfill precision is effectively improved, the construction quality is improved, the stability and the bearing capacity of the inner wall of the tunnel are enhanced, potential safety hazards are reduced, the concrete backfill work amount can be accurately controlled, the construction cost is reduced, and material waste is avoided.

The invention provides a device for weakening side wall interference in a transient wind tunnel airfoil test, and belongs to the technical field of aerospace wind tunnel test aerodynamic force test. The objective of the invention is to weaken the interference effect of the side wall during a transient wind tunnel airfoil test. The device comprises a to-be-tested airfoil profile, a separating and removing device, a wind tunnel wall and a random cover plate, square supporting structures are arranged at the two ends of the to-be-tested wing section, the to-be-tested wing section is fixed on the wall of the wind tunnel through the supporting structures, the two shape-following cover plates are fixed on the upper and lower sides of the supporting structures through second fixing screws, and mounting grooves are formed between the shape-following cover plates and the to-be-tested wing section; the whole separating and removing device is in a disc shape, a rectangular through hole with the same size as the supporting structure is formed in the middle of the disc, and the separating and removing device is installed in the installation groove and fixedly connected with the wing-shaped side face to be detected through a first fixing screw. According to the invention, the interference effect of the side wall during the temporary impact type wind tunnel airfoil test is effectively weakened, the efficiency of the temporary impact type wind tunnel airfoil test is improved, and the test cost is reduced.

The invention discloses an air-ground cooperative system model prediction formation control method in an underground pipe gallery environment, and the method comprises the steps: constructing an air-ground cooperative system nonlinear model, and constructing an underground pipe gallery model; designing a high-order interference observer to estimate current unknown external disturbance, and establishing an interference prediction model to estimate future unknown external disturbance; a rolling optimization control strategy based on state prediction is designed, control signals of all followers are optimized according to the current state of the system and the predicted future state in each control period, and the tracking precision is ensured while the tracking precision is improved. Collision between followers, collision between the followers and the wall of the pipe gallery and obstacle avoidance between the followers and static and dynamic obstacles in the pipe gallery are achieved; and solving is carried out based on a distributed model prediction formation control algorithm combined with a Lyapunov stability theory, so that each follower keeps an expected formation configuration while tracking a leader trajectory. And the driving safety of the formation in the underground pipe gallery environment is ensured.

The application discloses a kind of multi-path ghost suppression method of millimeter wave radar tunnel scene, it is applied to millimeter wave radar target detection field, for the poor multi-path ghost suppression effect in tunnel scene of prior art;The application first constructs confidence criterion using the multidimensional information point cloud data generated by radar original echo, and carries out density-based clustering to point cloud data;Then linear fitting is carried out to zero doppler point cloud to obtain the slope information of tunnel wall, simultaneously, the median line slope of dynamic point cloud pair is matched with the slope set, and the target pair associated successfully is judged as multi-path ghost with lower confidence;Finally, considering the motion characteristics of target in tunnel, as well as multi-path reflection geometric model, the double rectangular region division of transverse and longitudinal is carried out to dynamic point cloud, and the point cloud data in region is subjected to Doppler information constraint, and the target satisfying the condition and with lower confidence is screened out and judged as multi-path ghost.The application can detect vehicle target in semi-closed environment, while retaining real target, can effectively identify and suppress the multi-path ghost generated by reflection of tunnel wall and railing etc..

The invention provides a weak tunnel wall interference device for a 1-meter transonic wind tunnel airfoil test, and belongs to the technical field of wind tunnel tests. The invention aims to weaken the interference effect of upper and lower tunnel walls during transonic wind tunnel airfoil test. A test section and a wind tunnel body are arranged in a plenum chamber, the wind tunnel body is located on the outlet side of the test section, and the test section comprises left and right side walls, upper and lower ventilation walls, a hinge seat, an adjusting seat, left and right frames and upper and lower frames; the side walls are solid walls and are mounted on the left and right frames, the incoming flow sides of the ventilation walls are connected with the hinge seats, and the outgoing flow sides are connected with the adjusting seats; the four injection seam adjusting pieces are arranged on the outer sides of the left and right side walls and the upper and lower ventilation walls, the outflow side is hinged to the wind tunnel body, the inflow side is connected with a motor driving pull rod on the plenum chamber, and the injection seam adjusting pieces make contact with the outer side lines of the left and right side walls and the upper and lower ventilation walls when closed. The method can effectively weaken the interference effect of the upper and lower tunnel walls during the transonic wind tunnel airfoil test, and improves the data accuracy during the airfoil test of the transonic wind tunnel.

The invention provides a method for monitoring cracks in a high-pressure vibration state of a wind tunnel in real time, and belongs to the technical field of wind tunnels. A piezoelectric ceramic sensor array is arranged on the wall surface of the wind tunnel, a vibration fatigue matrix and a structure resonance matrix are established, and a self-adaptive filtering algorithm is adopted to preprocess sensor signals; establishing a vibration coupling equation set to extract crack characteristic parameters, constructing a dynamic threshold discrimination matrix and a risk assessment matrix, utilizing a multi-sensor data fusion algorithm to accurately position crack positions and sizes, calculating risk levels according to a crack risk assessment index equation, and performing three-level safety discrimination. A complete crack real-time monitoring and risk assessment system in the high-pressure vibration environment is formed, and the technical problems that in the prior art, crack monitoring precision is low in the high-pressure vibration environment, and real-time risk assessment cannot be achieved are solved.

The invention discloses a tunnel surrounding rock comprehensive elastic modulus testing method and system based on a surface wave method, and relates to the technical field of tunnel surrounding rock elastic model testing, and the method comprises the steps: collecting surface wave signals through detectors in a plurality of detection holes preset in a tunnel wall on the premise of exciting a seismic source signal; performing signal conversion on each preprocessed surface wave signal to obtain a plurality of first signals of a frequency domain type; performing smooth summation processing on the first signals subjected to the linear dynamic correction processing to obtain an output result; obtaining corresponding surface wave energy data through the output result, and obtaining a corresponding surface wave frequency dispersion curve based on extraction of the surface wave energy data; according to the surface wave dispersion curve, surface wave velocities of different depths in the surrounding rock are obtained through inversion, and the comprehensive elastic modulus of the tunnel surrounding rock is obtained through calculation based on the surface wave velocities; testing is carried out based on a surface wave method, drilling and coring are not needed, and the method has the advantages of high testing efficiency, low cost, small disturbance to surrounding rock and the like.

The invention discloses a subway tunnel wall stress self-adaptive monitoring method and device and a medium, and the method comprises the steps: obtaining a vibration signal collected by a train vibration sensor and an optical signal collected by a distributed optical fiber sensor in real time, demodulating the vibration signal and the optical signal, and calculating the actual stress under the thermal-mechanical coupling effect, dynamic displacement of the tunnel wall is extracted according to the vibration signal, dynamic stress is calculated, and then actual stress under the heat-force-vibration multi-field coupling effect is calculated; carrying out noise reduction processing on the stress signal monitored in real time by using wavelet transform, and predicting actual stress data under the multi-field coupling action by using Kalman filtering according to the stress signal subjected to noise reduction processing to obtain corrected stress data; and inputting the corrected stress data into the LSTM-SVM model to obtain a final stress prediction result. According to the method, the stress state of the subway tunnel wall can be comprehensively and continuously monitored, and meanwhile, the monitoring precision, stability and robustness in a complex and dynamic tunnel environment are improved.

The invention provides a needle beam trolley construction digital management method, and relates to the technical field of digital management, and the method comprises the steps: employing a laser scanner to scan the wall surface of a to-be-constructed tunnel; acquiring position information of a plurality of working windows of the needle beam trolley; carrying out operation sequence enumeration by taking the maximum number of cooperative work windows as a constraint, and generating a plurality of work window operation sequences; based on the tunnel wall face three-dimensional model, with the requirement for the expected construction quality as the constraint and the requirement for maximizing the construction efficiency as the target, according to the multiple working window operation sequences, casting parameter and vibration parameter optimization is conducted, an optimal construction scheme is output, and digital construction management is conducted on the needle beam trolley. The technical problem of low construction efficiency caused by unreasonable operation sequence and non-uniform resource distribution in the construction process is solved, spatial perception is performed on the to-be-constructed tunnel through three-dimensional modeling, multi-aspect optimization is realized in combination with digital management, and the construction efficiency and precision of the needle beam trolley are improved.

The invention discloses a highway tunnel inspection system and method based on an unmanned aerial vehicle, and relates to the field of highway tunnel inspection, an unmanned aerial vehicle module, a monitoring module and a protection module, the monitoring module is arranged on the unmanned aerial vehicle module, and the monitoring module is used for obtaining images and data in a tunnel; the protection module comprises a protection frame, the protection frame comprises a plurality of polygonal frames, the protection frame is a polyhedral frame formed by connecting the vertexes of the polygonal frames, the unmanned aerial vehicle module and the monitoring module are located in the protection frame, and each polygonal frame is provided with a plurality of anti-collision air bags. According to the system, the unmanned aerial vehicle module and the monitoring module are wrapped in the polyhedral frame, through the polyhedral frame and the rolling anti-collision air bag on the polyhedral frame, the anti-collision performance and the flight safety performance of the unmanned aerial vehicle are effectively improved, the system can roll and fly close to the tunnel wall, and the influence of vehicle wind pressure on the flight stability of the unmanned aerial vehicle is prevented.

The invention provides a 0.6-meter wind tunnel infrared test section. The 0.6-meter wind tunnel infrared test section comprises a rack car; the frame is arranged at the top of the rack car and slidably connected with the rack car, and positioning pin structures are arranged at the two ends of the frame respectively; the test area hole wall assembly is arranged in the frame and is in sliding connection with the frame, the test area hole wall assembly can be moved out of the frame, a positioning connecting piece is arranged on the test area hole wall assembly, and the positioning connecting piece is connected with the frame; the support area hole wall assembly is fixedly arranged in the frame; the model bracket comprises a support and a semi-curved knife, and the support is fixedly connected with the rack car; the semi-curved knife movably penetrates through the bottom of the bracket area hole wall assembly; the upper end of the half-bent knife is used for installing a model. The test area hole wall assembly can be drawn out from the test section, and germanium glass of the lower wall plate of the test area is prevented from being damaged when the model is installed; the model support adopts a half-curved knife form, the upper end of the half-curved knife is not connected with the test area upper wall plate, the space above the test area upper wall plate is not occupied, the camera arrangement requirement is met, and the device is suitable for a wind tunnel infrared test.

The invention belongs to the technical field of circular tunnel air volume measurement, and particularly relates to an air volume measuring method for dynamic environment monitoring of an underground circular tunnel. The measuring method mainly comprises the following steps: firstly, measuring the distances from a test point to the upper top surface, the lower bottom surface, the right wall surface and the left wall surface of the tunnel; secondly, establishing a coordinate system by taking the circle center of the cross section of the circular tunnel as an original point, and calculating the distance L from the original point to the tunnel wall in the diameter direction; then, carrying out average calculation on the wind speeds measured at intervals in a period of time to obtain a wind speed average value # imgabs0 # at the measuring point; and finally, calculating the flow Q of the cross section of the circular tunnel according to # imgabs 1 #, L and the radius R of the tunnel. Through a specific mathematical formula and a statistical average method, the measurement process is simplified, and the data accuracy is improved. According to the method, the number of measuring points is remarkably reduced, the testing workload is reduced, the accuracy of air volume measurement is improved, and the method is suitable for performance evaluation of a large-scale or complex-structure underground space ventilation system.

The invention discloses a TBM tunnel locomotive positioning and anti-collision early warning system, which belongs to the field of tunnel construction safety, and comprises positioning equipment and early warning equipment, the positioning equipment is composed of a UWB positioning base station, a UWB ranging base station, a UWB positioning label and a ranging module on a locomotive, and the UWB positioning base station, the UWB ranging base station and the UWB positioning label are arranged on a tunnel wall. The early warning equipment comprises a local-level early warning module, an intersection-level early warning module and a platform-level early warning module; the UWB positioning base station is used for acquiring one-dimensional position information of the locomotive in the axial direction of the tunnel, and the distance measuring module comprises distance measuring sensors and UWB distance measuring base stations which are arranged at the head part and the tail part of the locomotive and is used for measuring the relative distances between the locomotive and the wall surface of the tunnel and between the locomotive and other locomotives; the local-level early warning module triggers sound-light alarm according to the relative distance between the locomotives collected by the distance measuring module; the intersection-level early warning module displays the track occupation state through a lane indicating lamp and prompts that the locomotive runs safely. The method has the advantage of being high in accuracy.

The invention discloses a hydraulic tunnel drilling trolley excavation construction device, and relates to the technical field of tunnel construction equipment.The hydraulic tunnel drilling trolley excavation construction device comprises a trolley and a punching mechanism, a plurality of walking wheels are arranged at the bottom of the trolley, a lifting frame is slidably arranged on the trolley in the vertical direction, and a moving frame is slidably arranged on the lifting frame in the horizontal direction; a supporting arm is rotationally arranged on the moving frame, a mounting frame is rotationally arranged at the end of the supporting arm, and the punching mechanism is arranged on the mounting frame and used for punching holes in the tunnel wall. According to the hydraulic tunnel perforating device, the labor intensity of workers can be reduced, the perforating efficiency and precision can be improved, meanwhile, the perforating position and angle can be flexibly adjusted, the hydraulic tunnel perforating device adapts to the complex and changeable hydraulic tunnel construction environment, and the perforating requirements of different positions and angles are met.

The invention discloses a method and a device for correcting hole wall interference after wing type stall of a high-lift rotor wing and a medium, and belongs to the field of wing type wind tunnel test data correction. The method is based on a single-parameter linearization wall pressure information method, and upper and lower tunnel wall pressure and airfoil aerodynamic force data in a wind tunnel test are measured; obtaining a vorticity field through numerical simulation or a PIV test, identifying a separation vortex, and calculating a vorticity center of the separation vortex to determine a vortex core center position; a source is arranged in the center of the vortex core of each separation vortex, and the intensity of the source is the same as or integral multiple of the vorticity; the original singular point distribution is kept unchanged, and the influence of the superposition source realizes hole wall interference correction after stall, so that the corrected lift force, resistance and pitching moment coefficients are obtained. The method is suitable for a rotor wing type wind tunnel test with the incoming flow Mach number ranging from 0.1 Ma to 0.9 Ma, the aerodynamic data correction accuracy can be improved after stall, and the correction result is highly consistent with reference data.

The invention discloses an incoming flow Mach number control method for a transient transonic wind tunnel airfoil test, and belongs to the technical field of wind tunnel airfoil tests. The problem that in the prior art, a traditional Mach number control method adopting a conventional plenum chamber reference point is difficult to be suitable for carrying out an airfoil test in a transient transonic wind tunnel is solved. According to the method, a standard airfoil model is selected, simulation calculation is carried out, and distribution of Mach numbers in the incoming flow direction of the airfoil model in the free flow state, namely the wind tunnel wall-free state, is obtained; s2, performing simulation calculation in a three-dimensional full-simulation state on the wind tunnel by adopting a standard airfoil model which is the same as the step S2, acquiring axial Mach number distribution of side wall center lines of test sections with different opening-closing ratios of the wind tunnel according to the opening-closing ratios, and calculating the axial Mach number distribution of the side wall center lines of the test sections with different opening-closing ratios; and analyzing to obtain a Mach number which is controlled in the incoming flow direction and is 3 times the chord length of the airfoil profile from the front edge of the airfoil profile, and carrying out a standard airfoil profile model wind tunnel test. According to the invention, the accuracy of simulating the incoming flow Mach number and the opening-closing ratio of the test section is improved, and the method can be applied to the temporary impulse transonic wind tunnel airfoil test.

The present application discloses a small-turn compact open-type full-section rock tunnel boring machine, comprising: a main beam equipped with a main drive and a support shoe propulsion system capable of driving the main drive to move; a rear supporting system equipped with a second anchor drilling system capable of performing anchor support; a cutterhead equipped in front of the main drive, the main drive capable of driving the cutterhead to rotate; a slag discharge system capable of conveying rock slag equipped in the cutterhead; a shield capable of adhering to the tunnel wall equipped around the main drive; a first anchor drilling system capable of performing anchor support and an advance drilling system capable of drilling and grouting reinforcement in front of the cutterhead equipped around the support shoe propulsion system; and a rear support capable of holding the tunnel wall tight. The above-mentioned small-turn compact open-type full-section rock tunnel boring machine has a compact main beam structure, shortens the total length of the main beam, and enables the rock tunnel boring machine to adapt to small-turn rock tunnel excavation, thereby improving the scope of application of the rock tunnel boring machine.

The invention discloses a drum-type lapping device and method for a tunnel rockburst high-toughness energy-absorbing net, and belongs to the technical field of lapping of high-toughness energy-absorbing nets. The lapping device comprises a length-adjustable supporting beam group, a net feeding roller of the automatic net feeding device is fixed to a roller fixing arm, the wheel face of the net feeding roller abuts against the high-toughness energy-absorbing net roll, the roller fixing arm is arranged on a driving part in a sleeving mode, and the driving part is fixed to a supporting beam set. A nail gun of the net material attaching and fixing device is fixed to a pushing and pressing supporting component, one end of the pushing and pressing supporting component is attached to the net material, the other end of the pushing and pressing supporting component is fixed to a telescopic supporting component, and the telescopic supporting component is fixedly connected with a supporting beam set. According to the high-toughness energy-absorbing protective net disclosed by the invention, the flatness of a net material in the releasing process of the high-toughness energy-absorbing protective net is good, the high-toughness energy-absorbing protective net can be tightly attached to the wall surface of a tunnel, and the net laying operation efficiency and the rockburst protection level of the high-toughness energy-absorbing protective net are improved.

The application provides a method for controlling MRAM magnetic tunnel wall contamination, which does not need to additionally plate an insulating protective layer on the MTJ layer wall, but forms a unique funnel-shaped groove in the etching process, the funnel-shaped groove comprises a first region away from the plane of the substrate and a second region adjacent to the plane of the substrate, the size of the first region gradually increases in the first direction, and the size of the second region is constant in the first direction; when removing the metal contamination at the bottom of the funnel-shaped groove, the funnel-shaped groove can prevent the metal contamination from adhering to the wall of the MTJ layer, thereby improving the device performance of the MRAM.

The invention relates to the technical field of tunnel excavation, and particularly discloses a lifting type movable tunnel excavation supporting trolley which comprises a movable trolley body, a rack is arranged on the movable trolley body, a plurality of horizontally-arranged lifting platforms are installed on the rack, and each lifting platform is connected to the rack through a lifting structure. The problems that in the background technology, a lifting type tunnel excavation supporting trolley is a single lifting platform, and when the lifting type tunnel excavation supporting trolley faces an arc-shaped tunnel wall, multiple working faces of the tunnel wall cannot be constructed at the same time are solved.

The invention discloses a drill boom compound control system and method, and belongs to the technical field of drill jumbo drill boom control, and the device comprises a pose detection unit which is used for collecting drill boom joint angle and telescopic length data in real time; the contour modeling unit is used for scanning known points of a tunnel wall to realize trolley positioning, acquiring 3D point cloud data of a tunnel face and a tunnel contour, generating an actual tunnel contour, and comparing the actual tunnel contour with a preset theoretical contour to generate back break data; the visual monitoring unit is used for capturing construction images in real time and identifying drill arm pose offset and a tunnel contour change area; the central control unit is respectively connected with the pose detection unit, the contour modeling unit and the visual monitoring unit, and the execution unit is used for driving a drill arm to act; according to the invention, high-precision composite control of the drill boom is realized, and the problems of poor adaptability and poor application effect when the intelligent drill jumbo performs tunneling hole drilling construction are solved.

The invention discloses an intelligent tunnel construction monitoring and self-adaptive supporting system based on multi-mode perception and a self-adaptive method.The system comprises a plurality of distributed optical fibers located in a tunnel, and the distributed optical fibers are connected with a data acquisition system through anti-bending optical fiber jumpers; a plurality of adjustable anchor rod assemblies are arranged at preset positions on the wall of a tunnel, anchor rods of the adjustable anchor rod assemblies are connected with an assembled pressure-bearing central pivot cylinder, the inner wall of the assembled pressure-bearing central pivot cylinder is connected with a pressure-bearing core column through a micro jack, the assembled pressure-bearing central pivot cylinder is sleeved with the pressure-bearing core column, and the pressure-bearing core column is connected with the pressure-bearing core column. And the data acquisition system is positioned on the assembled pressure-bearing central cylinder. According to the intelligent tunnel construction monitoring and self-adaptive supporting system based on multi-modal sensing and the self-adaptive method, efficient and accurate supporting of tunnel surrounding rock is achieved, the safety of tunnel construction and operation is improved, and meanwhile the supporting cost is reduced.

The invention relates to the technical field of tunnel and underground engineering safety construction, in particular to a deeply-buried hard rock tunnel micro-seismic monitoring and segmented advanced blasting collaborative pressure relief method which comprises the steps that a pre-constructed micro-seismic monitoring system is arranged along the tunnel wall so as to collect and analyze seismic source parameters of a micro-seismic event; whether a preset early warning threshold value is exceeded is judged according to the judgment result; if yes, segmented advanced blasting pressure relief design is carried out based on the seismic source parameters of the micro-seismic event, so that blasting parameters are obtained; according to the blasting parameters, drilling wall protection and charging blasting are conducted on the tunnel hole wall, so that the blasted tunnel hole wall is obtained; the current surrounding rock response of the tunnel wall after blasting is observed, whether the current surrounding rock response exceeds a preset early warning threshold value or not is judged, if yes, it is judged that pressure relief is effective and tunneling is normal, and if not, blasting parameters are adjusted or pressure relief is supplemented in the next cycle. Therefore, the problems of passive rock burst risk early warning, poor pressure relief effect, extensive parameter control and the like under the high ground stress condition in drilling and blasting method construction of the deeply-buried hard rock tunnel are solved.

The application discloses a drum-type net laying device and method for tunnel rock burst high-toughness energy-absorbing net and belongs to the technical field of high-toughness energy-absorbing net laying. The net laying device comprises a length-adjustable support beam group; a net conveying roller of an automatic net conveying device is fixed on a roller fixing arm, and a wheel surface of the net conveying roller is in abutment with a high-toughness energy-absorbing net roll; the roller fixing arm is sleeved on a driving part, and the driving part is fixed on the support beam group; a nail gun of a net material adhering and fixing device is fixed on a pushing and supporting member, one end of the pushing and supporting member is in adhesion with the net material, and the other end is fixed on a telescopic supporting member; the telescopic supporting member is fixedly connected with the support beam group; a rotary adjusting assembly is connected with a lifting arm of a construction machine and the support beam group. In the releasing process of the high-toughness energy-absorbing protective net, the net material has good flatness, the high-toughness energy-absorbing protective net can be closely adhered to a tunnel wall surface, and the net laying operation efficiency of the high-toughness energy-absorbing protective net and the rock burst protection level are improved.