380 results about "Drilling and blasting" patented technology

The present invention relates to the technical field of tunnel rockburst microseismic monitoring, and provides a strain-structural plane slip-type rockburst failure mechanism analysis method for a drill-and-blast method tunnel. The present invention collects strain-structural plane slip-type rockburst microseismic data during tunnel construction; in light of engineering geological survey data, performs microseismic monitoring and data analysis on strain-structural plane slip-type rockburst that has occurred in a tunnel, divides a strain-structural plane slip-type rockburst risk area, and determines a microseismic rockburst early warning area; and, by means of these data, deeply understands a microseismic activity law of strain-structural plane slip-type rockburst of deep-buried drill-and-blast method tunnels, discriminates respective functions of tensioning and shearing in rock failure processes, comprehensively analyzes the failure mechanism of strain-structural plane slip-type rockburst, and further obtains the failure mechanism of strain-structural plane slip-type rockburst of the deep-buried drill-and-blast method tunnels, providing an important theoretical basis for predicting and preventing rockburst disasters.

The invention discloses a drilling and blasting method tunnel construction safety risk evolution analysis method based on a knowledge graph, and the method comprises the steps: obtaining and preprocessing the text data of a drilling and blasting method tunnel construction accident case, and obtaining a safety risk corpus; a mixed deep learning model is constructed, the safety risk corpus is trained through the mixed deep learning model, and the risk factors and the incidence relation of drilling and blasting method tunnel safety are obtained; constructing a drilling and blasting method tunnel construction safety risk coupling evolution analysis knowledge graph based on the risk factors and the incidence relation, and obtaining a key accident chain and a key edge in combination with a knowledge query and path reasoning algorithm; and quantitatively evaluating independent values and coupling effect intensity of the risk factors by using an interaction matrix algorithm, calculating comprehensive importance scores of the risk factors, and determining key risk points according to the comprehensive importance scores of the risk factors. The problems that in a traditional method, attention to the risk factor coupling effect is insufficient, and accident case data are not fully utilized are effectively solved.

The invention belongs to the technical field of tunnel and underground engineering intelligent construction and geotechnical engineering informatization, and discloses a high-energy geological environment surrounding rock classification and decision-making method based on digital twinning and multi-source feedback. The problems caused by difficulty in realizing surrounding rock state dynamic sensing, multi-source data fusion classification and construction decision closed-loop linkage in the prior art in a high-energy geological environment are solved. The method comprises the following steps: firstly, constructing a tunnel three-dimensional geology-structure digital twinborn body based on initial survey data; in the construction process, multi-source data such as geology, construction disturbance and surrounding rock response are collected in real time through the Internet of Things technology and mapped to the digital twinborn body, and virtual-real synchronous updating is achieved. And then, constructing a deep learning-parameter inversion hybrid model on the basis of the multi-source fusion data, outputting a dynamic surrounding rock classification index DRCI and key mechanical parameters, inputting the DRCI and the key mechanical parameters into a multi-objective optimization module, and giving a self-adaptive drilling and blasting scheme. And finally, reversely correcting the model through a construction feedback result to realize closed-loop self-learning.

The invention discloses a spherical crown dome horizontal circumference drilling and blasting parameter model optimization construction method, and the method comprises the steps: collecting geological, crustal stress, hydrological and structural plane data, building a three-dimensional geological information model, carrying out the working condition partitioning based on a surrounding rock quality evaluation index, and constructing a parameter probability distribution model and an uncertainty boundary of each partition. Therefore, precise space description and parameter variability quantification of the spherical crown dome construction area are realized. The method comprises the following steps: establishing a three-dimensional numerical model of a cavern group, integrating blasting power, seepage and stress multi-physical field effects by adopting a finite element-discrete element coupling method, introducing a surrounding rock deterioration constitutive model considering cumulative damage and unloading aging, calibrating key parameters through an indoor test and field trial explosion, and establishing a three-dimensional model of the cavern group. And the numerical model can truly reflect the mechanical property degradation track of the surrounding rock under repeated blasting disturbance.

The invention provides a tunnel drilling and blasting slag removal vehicle autonomous path planning method and device based on a Naligation 2 behavior tree scheduling framework, and the method comprises the following steps: S1, carrying out the data collection and map construction of a tunnel scene after drilling and blasting; s2, identifying a blasting residue area and generating a target point; s3, constructing a behavior tree scheduling structure and planning a path; and S4, performing path search, execution and feedback evaluation based on a path planning algorithm. According to the method, multi-source sensor mapping and deep learning semantic segmentation technologies are combined, high-precision recognition and traffic area extraction of residual obstacles in an unstructured tunnel environment after drilling and blasting are performed are performed, complex scenes faced by slag removal path planning are fully considered, a behavior tree scheduling mechanism is adopted to fuse path planning, target scheduling and an anomaly recovery strategy, and the path planning efficiency is improved. And a path execution system of real-time response and fault-tolerant capability is further constructed, and the operation continuity and robustness of the robot in a complex operation environment are improved.

The invention provides a tunnel contour line forming device based on hydraulic cutting, which comprises a hanging frame and an inserting rod device on the hanging frame, one end of the inserting rod device is inserted into a slag discharging hole, a swing arm frame capable of swinging is arranged at one end of the hanging frame, a water jet cutting assembly capable of moving along the length direction of the swing arm frame is arranged on the swing arm frame, and the water jet cutting assembly is provided with a water jet nozzle. The problems that in the drilling and blasting method construction, instability and collapse of a tunnel face and over-excavation and under-excavation are likely to be induced are solved, automatic operation can be achieved after the mobile carrier is used for assisting in parking in the installation process, the beneficial effects of being convenient to assemble and disassemble and flexible in operation are achieved, and multi-machine-position cluster operation can be achieved.

The invention discloses a multi-element blasting effect evaluation method and system based on point cloud data, and relates to the field of blasting effect evaluation of a drilling and blasting method.The method comprises the steps that point cloud obtained after tunnel blasting is scanned through a three-dimensional laser scanner, and classification of muck pile point cloud, tunnel face point cloud and hole body point cloud is achieved through a Canupo algorithm; the muck pile point cloud, the tunnel face point cloud and the hole body point cloud are processed, and the boulder rate, the throwing distance, the excavation footage, the blast hole utilization rate, the tunnel half hole and the over-excavation and under-excavation quantity index parameters are obtained; and obtaining a blasting effect evaluation score through the combination weight and the score of each index parameter, and obtaining blasting effect evaluation. According to the method, multiple blasting effect evaluation indexes can be accurately obtained based on the point cloud data obtained through three-dimensional laser scanning, the blasting effect is quantitatively evaluated, a large amount of manpower is saved, the blasting effect evaluation efficiency and accuracy are improved, and reference is provided for improvement of subsequent blasting design.

Disclosed in the present invention are a multifunctional drilling and blasting integrated jumbo apparatus, and a method. The apparatus comprises a steel arch frame, and a plurality of crawler mechanisms driven by motors and connected to the bottom of the steel arch frame. Further comprised is a plurality of drilling and explosive conveying apparatuses, each comprises a guide rod arranged in parallel with an upper cross beam, wherein the two ends of each guide rod are connected with guide rod wheels. Each guide rod is connected to a drill rod groove by means of a bearing. A main arm is hinged in each drill rod groove. An auxiliary arm is hinged to the end part of each main arm. A variable-amplitude oil cylinder is hinged between each main arm and each auxiliary arm. A supporting platform is hinged to the end part of each auxiliary arm. A variable-amplitude oil cylinder is further hinged between each supporting platform and each auxiliary arm. Each supporting platform is connected to a drilling apparatus and an explosive-mounting apparatus. On the basis of using a drilling and blasting jumbo, the present invention innovatively uses automatic drilling, mechanical explosive conveying, and an automatic management and control system, thus preventing existing problems of low tunneling working efficiency, low automation degree, poor safety, poor operation environment, dust and other health hazards to personnel.

The medium-length hole mining method under the complex geological condition comprises the following steps that S1, a stope is divided, specifically, the stope is divided into two stages along the inclination direction of an ore body, and bottom columns are not reserved; s2) roadway construction; s3) stoping: taking the cutting raise and the transverse cutting roadway as double free surfaces, and constructing medium-length hole blasting in a retreating manner from the middle to the two ends; s4) drilling and blasting; s5) transporting the ores; and S6) ventilation and dust prevention. The method is suitable for mining inclined ore bodies with thick ore bodies, unstable IV-level surrounding rock stability, extremely unstable V-level local parts and inclination angles of 30-50 degrees. By means of the non-sill-pillar structure and the 25-m stage interval and the through ore removal access road of the outside-vein transportation roadway, 15%-20% of sill pillar resource loss in a traditional method can be eliminated, the ore recovery rate is greatly improved, dead ore resources in a mining area are activated, and the service life of a mine is prolonged.

The application provides a tunnel blasting scheme intelligent design method, and relates to the technical field of tunnel engineering. The application obtains blasting design parameters based on a tunnel engineering geological exploration report and a forepoling geological prediction; obtains a drill-and-blast method tunnel blasting scheme 01 based on the blasting design parameters (4) by using a tunnel engineering blasting theory and a computer deep learning technology; establishes an existing drill-and-blast method tunnel blasting scheme sample library of built or under-construction tunnels based on the blasting design parameters (10) by using the computer deep learning technology, and obtains a to-be-built drill-and-blast method tunnel blasting scheme 02 by inputting the blasting design parameters and tunnel engineering requirements; and obtains a final drill-and-blast method tunnel blasting scheme according to the economic, efficient, safe and simple principle by using an artificial selection method based on the obtained drill-and-blast method tunnel blasting scheme group. The method avoids the influence of subjective factors, combines a traditional experience design method, big data processing and artificial intelligence technology, and provides an efficient scheme for design and construction personnel.

The present invention discloses a drilling trolley propulsion beam capable of bending and drilling, and a drilling trolley. The drilling trolley propulsion beam capable of bending and drilling comprises a rock drill (4) and a drill rod (6) connected in sequence, one end of the drill rod (6) is provided with a drill bit (601), and the drilling trolley propulsion beam capable of bending and drilling also comprises a bending drilling guide device, the bending drilling guide device comprises a deflection assembly (1) and a telescopic drive assembly (3), the deflection assembly (1) comprises a top-attaching component (101), and the top-attaching component (101) is located behind the drill bit (601). The drilling trolley propulsion beam capable of bending and drilling comprises a bending drilling guide device, which can apply a radial force to the front part of the drill rod in the hole to change the drilling direction, thereby solving the problems of over-excavation and under-excavation of the peripheral contour of the existing tunnel drilling and blasting method and the poor durability of the skimmer drilling tool.

The invention discloses a tunnel precise drilling and blasting design method integrating multi-source intelligence and closed-loop optimization. The method comprises the steps that geological parameters are collected through geological detection equipment; based on fracture mechanics and rock mass damage theories, constructing a quantitative relation model reflecting joint network distribution, stress wave propagation characteristics and a rock mass crushing effect coupling mechanism; inputting the geological parameters into a pre-constructed multi-dimensional knowledge base, integrating historical engineering data association rules by the multi-dimensional knowledge base by using a graph database, and extracting geological features; based on a deep learning model, analyzing the mapping relation between the geological features and the blasting parameters, and generating a preliminary blasting scheme including the blast hole distance, the charging structure and the detonating mode; according to the method, a closed-loop optimization system of geologic features-blasting parameters-effect evaluation is constructed, so that dynamic intelligent decision-making and construction self-adaptive regulation and control of tunnel drilling and blasting design are realized, and the contour forming precision and the blasting efficiency are remarkably improved.

The invention provides a downward parallel medium-length hole sublevel filling mining method for a low-grade broken ore body, belongs to the technical field of mining, and solves the problems that a traditional mining method is low in mining efficiency and high in cost under complex geological conditions. Downward parallel medium-length holes are adopted in each section for drilling and blasting, efficient stoping is achieved in cooperation with remote control ore removal and supporting equipment, an interbed filling technology is adopted in a goaf to be combined with a reinforcing mesh structure to form an artificial roof, stress and displacement changes of a filling body are monitored in real time through a ground pressure monitoring system, and the stoping sequence and supporting parameters are optimized. According to the method, the efficiency and safety problems of a traditional mining method in low-grade and broken ore deposit and three-under resource mining are solved, large-scale, low-cost, safe and efficient mining is achieved, and the method is suitable for ore body mining under complex geological conditions.

The invention discloses a multifunctional all-in-one unit for drilling and blasting method construction and a construction technology, and relates to the technical field of tunnel construction, the multifunctional all-in-one unit comprises a rack assembly, a left drilling arch arm frame, a left drilling arm frame, a vertical arch arm frame, a right drilling arm frame, a right drilling arch arm frame, a guniting arm frame, a pumping system, a hydraulic system and an electrical system; a vertical arch module of the left drilling arch arm frame, a vertical arch module of the vertical arch arm frame and a vertical arch of the right drilling arch arm frame snatch a left arch frame, a middle arch frame and a right arch frame to carry out arch erecting and mesh welding operation; a charging hanging basket is arranged at the front end of the rack assembly; the rock drilling modules of the left drilling arch arm frame and the right drilling arch arm frame work independently or cooperatively in cooperation with the left drilling arm frame and the right drilling arm frame and are used for drilling anchor rod holes and blast holes. According to the invention, multiple functions such as drilling of blast holes, charging of a hanging basket, blasting, erecting of meshes, anchor rod operation, guniting and the like can be integrated, parallel working procedures or seamless connection of the working procedures can be realized, and the construction progress can be greatly improved.

The invention provides a tunnel mechanical fault shutdown influence prediction method and system based on a CART decision tree, and belongs to the technical field of tunnel engineering. The method comprises the steps that equipment operation data and construction environment parameters in drilling and blasting method tunnel construction are collected, and a multi-dimensional feature set is constructed; performing preprocessing and feature screening on the data in the multi-dimensional feature set, and establishing a fault-shutdown associated feature matrix; based on a CART decision tree algorithm, constructing a fault shutdown influence prediction model by using the fault-shutdown association feature matrix; inputting equipment state data collected in real time and construction parameters into the prediction model, and dynamically outputting a prediction result through decision tree rule matching; and adaptively adjusting and optimizing the parameters of the prediction model according to the dynamic change of the construction stage. According to the method, multi-dimensional, high-precision and interpretable prediction on the mechanical fault shutdown influence can be realized, and intelligent support is provided for construction decision making.

The invention belongs to the technical field of underground excavation subway station blasting construction, and particularly relates to a station-after-tunnel-after-station drilling and blasting construction platform layer method for a subway station. Comprising the following steps that S1, a station hall layer of a station is excavated; s2, carrying out shield tunneling to pass through a station; s3, the platform layer area is divided into an upper step, a middle step and a lower step with the segmentation of the platform layer side wall primary support grating as the reference; s4, excavating an upper step on the inner side of the first station returning line after the first station returning line returns to the station; s5, breaking the temporary duct piece of the first return station line and backfilling the tunnel; s6, an upper step on the outer side of the first station returning line is excavated; s7, excavating an upper step on the inner side of the post-return line after the post-return line returns to the station; s8, the temporary duct piece of the post-return station line is broken, and the tunnel is backfilled; s9, an upper step on the outer side of the post-station returning line is excavated; and S10, the middle area of the middle step, the middle step on the outer side of the first station returning line, the middle step on the outer side of the later station returning line, the middle area of the lower step, the lower step on the outer side of the first station returning line and the lower step on the outer side of the later station returning line are excavated in sequence.

The present invention application discloses a TBM assembly and launching method in a narrow site, which mainly includes the following steps: preliminarily determining the planned excavation length of the drilling and blasting tunnel section; adjusting the length of the TBM continuous belt conveyor in the tunnel based on the TBM launching node, and determining the planned excavation length of the drilling and blasting tunnel section after the belt conveyor length is optimized; calculating the remaining excavation length of the drilling and blasting tunnel section, and determining the actual excavation length of the drilling and blasting tunnel section; judging the relationship between the front surrounding rock grade and the time used for excavation support and the time when the TBM first steps into and blocks the tunnel opening; if the time node of the TBM first steps into and blocks the tunnel opening is met, there is no need to dynamically adjust the actual excavation length of the drilling and blasting tunnel section; if the time node of the TBM first steps into and blocks the tunnel opening is not met, the actual excavation length of the drilling and blasting tunnel section is dynamically adjusted. The present application dynamically adjusts the construction progress of the drilling and blasting tunnel section through the TBM assembly progress, so as to balance the risk of delays in the construction period between the drilling and blasting work and the TBM launching, and ensure that the tunnel engineering project is successfully completed according to the construction schedule, improve construction efficiency, and reduce construction costs.

The invention provides a drilling and blasting method tunnel section contour and blast hole position automatic design method, and relates to the technical field of tunnel engineering, and the method comprises the following steps: S1, determining the type of a tunnel section contour; s2, performing parameterized representation and automatically drawing a contour line based on the tunnel section contour type; s3, based on the drawn tunnel section contour, conducting parameterized arrangement of cut holes, peripheral holes, bottom plate holes and auxiliary holes, and generating coordinates of various blast holes; automatically designing blast hole positions through different types of tunnel section contours; and the arrangement of the blast holes is converted into the generation of coordinate points, so that the requirements of intelligent mechanical equipment for tunnel excavation in the drilling and blasting method on the coordinates of the blast holes are met, and finally, the intelligent and refined blast hole arrangement of a tunnel excavation site in the drilling and blasting method is realized. The problems that in the contour drawing and blast hole arrangement link, manual lofting is often low in efficiency and large in error are solved, and it is avoided that the excavation section deviates from the design, the over-excavation or under-excavation phenomenon occurs, and the construction quality is affected.

The invention discloses an underground receiving method of a vertical shaft heading machine, and belongs to the technical field of vertical shaft construction. Comprising the following steps that S1, a lower adit is excavated below a pre-construction position; s2, a slag slipping well is excavated in the corresponding pre-construction position of the lower adit through a directional drill and a raise boring, and a rock mass is reserved on the side wall of the slag slipping well; s3, after the slag sliding well is excavated, the original well is excavated through a manual drilling and blasting method, and then a vertical shaft heading machine conducts downward excavation and reaming on the upper portion of the original well; s4, in the downward digging process of the vertical shaft heading machine, slag is piled at the junction of the slag slipping well and the lower adit; and S5, the vertical shaft heading machine penetrates to the lower adit. The tunneling parameters of the vertical shaft tunneling machine are adjusted, and slag is piled to the slag slipping well in the lower adit, so that the tunneling machine is ensured to smoothly penetrate to the lower adit.

The invention discloses a coal mine vertical shaft drilling and blasting method construction dry type dust falling device which comprises a dust remover, an exhaust hose, an air draft hose and a centrifugal fan, the dust remover is installed on a hanging scaffold in a vertical shaft, an air outlet of the dust remover is connected with an air inlet of the centrifugal fan through the exhaust hose, and an air outlet of the centrifugal fan is connected with an air outlet of the dust remover through the air draft hose. An air inlet of the dust remover is connected with an air draft hose, and an air inlet of the air draft hose extends towards the working face of the well bottom. The dust remover is arranged to be matched with the centrifugal fan, dry dust falling in the working space is achieved, the underground working environment is guaranteed, potential safety hazards caused by water mist dust falling are effectively avoided, targeted suction dust falling can be conducted on different dust sources by arranging the first branch pipe and the second branch pipe, the dust falling precision is improved, and the working efficiency is improved. By arranging the control box, the electric valve and the sensor, automatic dust falling can be achieved, and the underground working environment is automatically kept in real time.

The invention relates to TBM water conveyance tunnel lining steel pipe installation and transportation equipment and a transportation and installation method, the TBM water conveyance tunnel lining steel pipe installation and transportation equipment comprises a rail transportation system, a transfer system, a wheel type transportation system, an installation butt joint device and temporary supporting profile steel, the rail transportation system is arranged on a drilling and blasting tunnel section, and the transfer system is arranged at the junction of the drilling and blasting tunnel section and a segment tunnel section; the wheel type transportation system is arranged on a pipeline, and the installation butt joint device is arranged at the end of a lined section. The rail transportation system and the transfer system share the same group of rails at the intersection; the installation and construction of the lining steel pipe of the TBM water delivery tunnel with the engineering quantity smaller than 1 kilometer can be facilitated, the construction efficiency is improved, and the cost is reduced.

The invention relates to the technical field of tunnel construction automation, and discloses a drilling and blasting method tunnel machine group cooperation large machine intelligent scheduling system comprising the following steps: an Internet of Things sensing unit used for obtaining an equipment individual state; the macroscopic scene visual perception subsystem is used for identifying a macroscopic scene event; the state data management module is used for calculating a dynamic influence factor which can be attenuated along with time and can be adjusted for the state and the event; the decision potential field construction module is used for generating a space decision potential field model containing attraction potential and repulsion potential according to the dynamic influence factors; and the scheduling instruction generation module is used for planning a path based on the potential field model and generating an instruction. According to the method, the unified decision potential field adjusted by the dynamic influence factors is constructed, the scheduling problem is converted into the path planning problem, and unified and efficient scheduling of conventional processes and emergencies is achieved.

The invention provides a drilling and blasting method subsea tunnel waterproof and drainage system and an implementation method thereof.The waterproof and drainage system comprises an annular drainage mechanism, a water drainage mechanism and a water drainage mechanism, the longitudinal drainage mechanism comprises longitudinal drainage pipes and tunnel drainage ditches, and the longitudinal drainage pipes are arranged at the wall feet of the two side edges of the tunnel lining; the tunnel drainage ditch is arranged at a tunnel inverted arch; the transverse drainage mechanism comprises two transverse water guide pipes arranged on the section and on the left side and the right side of the tunnel, one ends of the two transverse water guide pipes are connected with the annular drainage pipe and the longitudinal drainage pipe respectively, and the other ends of the two transverse water guide pipes are connected with a tunnel drainage ditch; the water pressure sensing and overpressure drainage mechanism comprises a water pressure gauge and an overpressure drainage device, and the water pressure gauge is used for measuring the water pressure at the bottom of the tunnel; and the overpressure drainage device is connected with the end part of the transverse water conduit and is used for timely draining underground water when a preset water pressure value is exceeded. According to the method, accurate control over drainage in the operation period of the subsea tunnel through the drilling and blasting method can be achieved.

The invention provides an optimized charge over-excavation comprehensive control construction method based on rock parameter acquisition. The optimized charge over-excavation comprehensive control construction method comprises the following steps that S1, the uniaxial saturated compressive strength Rc or the rock firmness coefficient f of surrounding rock of a tunnel face is judged; s2, determining the excavation footage according to the uniaxial saturated compressive strength Rc or the rock firmness coefficient f; s3, according to the uniaxial saturated compressive strength Rc or the rock firmness coefficient f, a mother plate is arranged in an adaptive blast hole mode; s4, determining a blast hole arrangement diagram according to the uniaxial saturated compressive strength Rc or the rock firmness coefficient f; s5, determining a charging mother set according to the uniaxial saturated compressive strength Rc or the rock firmness coefficient f; s6, the final explosive loading amount is determined according to the uniaxial saturated compressive strength Rc or the rock firmness coefficient f; through the relation curve between the surrounding rock strength parameter and the explosive dosage, construction is guided to reasonably match and optimize the total explosive dosage, the peripheral hole medication and the auxiliary hole medication, and the purpose of reducing the over-excavation and over-consumption of drilling and blasting tunnel excavation is achieved.

The invention provides a rock strength real-time identification system and method based on PDC drill bit drilling parameters. The system comprises a mining full-hydraulic underground drill rig, a hydraulic system, a data acquisition system and an upper computer, power and control are provided through the hydraulic system, the data acquisition system acquires parameters such as the rotating speed of a drill bit and propelling oil pressure in real time, and the upper computer receives, calculates and outputs rock strength. The method comprises the steps that drilling parameters are obtained in real time, and key parameters are calculated after filtering and conversion; a PDC tooth cutting rock mechanical model is established, analysis is carried out in the press-in stage and the rotary cutting stage, and real-time parameters are substituted to calculate the compressive strength, cohesion and internal friction angle of the rock; and integrating the results of the two stages, outputting the rock strength in real time, and identifying the anisotropism of the rock stratum interface and the rock mass. The problem of rock strength identification in a drilling and blasting method is solved, the roadway drilling and blasting process can be optimized, the over-excavation phenomenon is reduced, and the stability of the roadway structure is guaranteed.

The invention discloses a tunnel hole slag image intelligent identification method and system based on multi-task deep learning, and relates to the technical field of crossing of hydraulic engineering and artificial intelligence, and the method comprises the steps: obtaining a hole slag image and shared data, constructing an original data set, preprocessing the original data set by using a dynamic adaptive data enhancement strategy and a focus loss function to obtain an enhanced data set; constructing a multi-level classification deep learning model of a multi-branch output structure, respectively outputting probability distribution results of different classifications, and setting a loss function and a loss weight of the multi-level classification deep learning model; and performing optimization training on the multi-stage deep learning model, inputting an enhanced data set generated in real time into the multi-stage classification deep learning model after optimization training, and outputting drilling and blasting parameter recommendation based on a lithology identification result. According to the method, the hierarchical classification model with multi-branch output is constructed, and construction method identification and specific lithology classification can be realized at the same time.

The invention discloses a tunnel integrated trolley based on a full-section drilling and blasting method and a construction method thereof. Comprising a single-side double-track chassis, multifunctional supporting legs, a door-shaped frame, a rock drilling bolting and grouting arm module, an explosive charging wet spraying arm module, an undercut danger removing operation arm module, a steel arch mounting system, a concrete pumping system, a hydraulic system, an air compression system, an additive system, a grouting stirring system, a water system, a cable reel, an intelligent electric control system, a spraying and dust reducing system and the like. Compared with traditional large machine matched construction, the tunnel construction method has the advantages that procedures are seamlessly connected, the waiting time of machines or tools is greatly shortened or zero, multi-tool transition scheduling is not needed, the number of professional operators is greatly reduced, tunnel construction efficiency is greatly improved, construction circulation time is shortened, construction cost is reduced, and construction safety is improved.

The invention relates to a construction scheme feasibility evaluation method considering cyclic blasting accumulated damage. The method comprises the following steps: establishing a cyclic blasting accumulated damage model according to a fatigue damage effect caused by an impact effect of a blasting load borne by a drilling and blasting method in a tunnel surrounding rock damage area; a plurality of blast holes are formed in the to-be-constructed area, and sound wave detectors are arranged on the two sides of the blast holes; blasting in the blast hole, recording sound waves generated by blasting through the sound wave detector, and calculating a damage value of the construction area through the cyclic blasting accumulated damage model according to the sound waves; and establishing a numerical calculation model, substituting the damage value into the numerical calculation model, and generating a feasibility evaluation report through the numerical calculation model.

The invention belongs to the technical field of tunnel engineering digital construction, and particularly relates to an unsupervised learning drilling and blasting method tunnel point cloud feature extraction and back break detection method. The method comprises the following steps: firstly, acquiring initial point cloud data of tunnel excavation by adopting three-dimensional laser scanning, and preprocessing by adopting point cloud thinning and registration; then, a convex hull algorithm is used for calculating an actual excavation axis, excavation sections with the thickness of 0.1 m are cut out according to the fixed interval of 10 m, a K-means clustering algorithm is used for conducting noise reduction processing on point cloud slices, and convex hull vertexes are screened to accurately extract actual excavation contour lines; and finally, the back break amount of each convex hull is calculated, and real-time quantitative analysis of the back break condition of the tunnel is achieved. According to the method, by fusing three-dimensional laser scanning, unsupervised learning and a convex hull algorithm, crossing of tunnel back break detection from discrete, lagging and manual detection to continuous, real-time and intelligent detection is achieved, and efficient, accurate and reliable digital technical support is provided for drilling and blasting method tunnel construction.

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.