507 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 drilling and blasting method mechanized tunnel surrounding rock pressure arch evolution and pressure calculation method, which specifically comprises the following steps: constructing a mechanized tunnel finite difference calculation model, and setting tunnel engineering calculation parameters; determining surrounding rock pressure arch inner and outer boundaries based on change characteristics of surrounding rock stress before and after excavation; automatically monitoring the stress change in the surrounding rock excavation process through Flac3D software, storing a calculation model of each excavation stage, and automatically calculating the upper and lower boundaries of a pressure arch of the model of each stage; performing curve fitting and correction on the key points of the upper and lower boundaries of the pressure arch to obtain a calculation formula of the pressure arch of each excavation construction method; and respectively calculating the internal loosening pressure of the surrounding rock pressure arch and the external deformation pressure of the pressure arch to obtain a mechanical tunnel surrounding rock pressure calculation formula. According to the method, the pressure arch range formed by mechanical tunnel construction disturbance is determined more accurately, quantitative evaluation of the mechanical tunnel construction disturbance range is achieved, and a basis is provided for feasibility of large-section and long-footage construction of mechanical tunnel surrounding rock.

The invention relates to the technical field of hard rock stratum blasting construction, and discloses a hard rock stratum blasting excavation method and a blasting delay time calculation method. The technical problems that in the prior art, in underground engineering drilling and blasting method construction, harmful effects exist, vibration generated by blasting is difficult to control, the surrounding environment is affected, the blasting efficiency is low, the construction period is long, and the engineering cost is high are solved. The method comprises the following steps that the tunneling blasting delay time is calculated, and vertical shaft large-diameter empty hole underholing blasting is carried out; vibration reduction holes are formed in the tunnel and the vertical shaft and between the blast hole and the protection object; and tunnel driving blasting charge and vibration effect test are carried out. The technical level of hard rock stratum blasting excavation construction is improved, and fine design and construction of hard rock stratum blasting and control over harmful effects are achieved.

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.

The invention discloses indoor test equipment for tunnel dust migration law research based on intelligent control, a main body of the indoor test equipment is a tunnel model test device, the tunnel model test device is electrically connected with a data monitoring device and a control and analysis device, and the top of the tunnel model test device is also provided with a spray dust fall device. The problems that in the prior art, the dust diffusion condition generated by a tunnel drilling and blasting method is difficult to detect, and the construction dust cannot be linked with a spraying and dust falling device, so that optimal spraying parameters cannot be designed and summarized are solved.

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 blasting drilling device based on blasting construction, and relates to the technical field of drilling blasting, the blasting drilling device comprises a supporting plate and further comprises a drill bit; and the drilling machine part comprises a base fixedly installed on the supporting plate, a protection box is fixedly installed on the base through a support, a top plate is fixedly installed on the base through two hydraulic rods, and a drill bit is rotationally installed on the top plate. The energy-saving drill bit has the advantages that vibration generated during drilling of the drill bit can be absorbed and stored, then the stored energy is used for driving all parts to operate, the rotating speed of the motor driving end can be automatically adjusted, the propelling force of the hydraulic rod can be adjusted, accordingly, the stability during drilling of the drill bit is improved, and the energy-saving drill bit has high energy-saving performance and high energy utilization rate.

The invention provides a pumped storage power station inclined shaft TBM and an expanding excavation mechanical construction method. The TBM comprises a shield body, a conical expanding excavation cutterhead is arranged at the front end of the shield body, a main drive is arranged in the shield body, the conical expanding excavation cutterhead is connected with the main drive through a main bearing, and a plurality of front supports and rear supports are arranged on the peripheral sides of the front end and the rear end of the shield body respectively; the shield body between the front support and the rear support is provided with a thrust oil cylinder and a driving support shoe, and the pumped storage power station inclined shaft TBM creeps and advances under the cooperation of the front support, the rear support, the thrust oil cylinder and the driving support shoe. Besides, by means of the mechanical construction method of the pilot shaft and TBM expanding excavation, the problems that construction guidance and the hole forming body type are not easy to control, the excavated hole is poor in flatness, poor in safety and the like existing in excavation of a drilling and blasting method can be solved, excavation of a traditional drilling and blasting method is eliminated, the hole forming quality is improved, disturbance to surrounding rock is reduced, and potential safety hazards are reduced; safe and efficient excavation of the water diversion inclined shaft in the pumped storage power station is guaranteed, and the construction period of key lines is shortened.

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 discloses a sublevel rock drilling stage ore removal subsequent filling mining method, which relates to the technical field of mining and comprises the steps of mining preparation, rock drilling and blasting, ore removal and filling. Mining preparation is conducted, specifically, the ore body is divided into a plurality of stopes at intervals in the trend of the ore body, a plurality of segmented drilling roadways extending in the trend of the ore body are formed in the stopes at intervals up and down, and transportation roadways communicating with the segmented drilling roadways are formed outside the stopes; rock drilling and blasting are conducted, specifically, rock drilling and blasting are conducted on the ores above the segmented rock drilling roadways in sequence in the extending direction of the segmented rock drilling roadways, and the ores above the shallow segmented rock drilling roadways are mined firstly, so that the ores below the corresponding segmented rock drilling roadways can support rock drilling and blasting equipment during rock drilling; ore removal: the exploded ore is transported to the ground through a haulage roadway; and filling is conducted, specifically, a retaining wall is arranged in the haulage roadway, and filling operation is conducted on the mined space. The mining efficiency can be effectively improved, and the productivity is 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 present invention belongs to the technical field of underwater drilling and blasting, and in particular, is a combined protective device of a bubble curtain and a vibration reduction hole for underwater drilling and blasting, comprising a bedrock, an air outlet and a fixed rope, wherein a vibration reduction hole is arranged inside the bedrock, a clamp is fixed at the lower left side of the air outlet, a counterweight is arranged below the fixed rope, a first leather hose is connected above the bubble curtain tube, and a connecting mechanism is installed above the first leather hose. The combined protective device of a bubble curtain and a vibration reduction hole for underwater drilling and blasting removes water from the vibration reduction hole through bubbles generated by the bubble curtain tube, thereby solving the problem that water in the hole cannot be removed, and enhancing the shock-absorbing effect of the vibration reduction hole. There is no need to set up multiple rows of vibration reduction holes, thereby reducing costs. A large number of bubbles are removed from the orifices of multiple vibration reduction holes, thereby forming a stable bubble curtain, which has a better weakening effect on underwater shock waves than traditional bubble curtains, and multiple bubble curtain tubes reduce the failure rate.

The utility model discloses an operation platform suitable for drilling and blasting of an extra-small section tunnel, which comprises an operation bedplate, a first support plate and a second support plate, the bottom of the operation bedplate is fixedly connected with a lifting device, the bottom of the lifting device is fixedly connected with a base, the first support plate is fixedly connected with a first electric push rod and a support rod, and the second support plate is fixedly connected with a second electric push rod. The top end of the first electric push rod is rotatably connected to the side, close to the center of the working platen, of the bottom face of the second supporting plate, the top end of the supporting rod is rotatably connected to the middle of the bottom face of the second supporting plate, and a drilling and blasting mechanism is arranged at the top of the second supporting plate. The position height of the pneumatic hammer drilling machine can be conveniently adjusted, the drilling direction of the pneumatic hammer drilling machine can be conveniently adjusted, the workload of workers is relieved, and the construction efficiency is improved.

The invention discloses a drilling and blasting method construction tunnel back break prediction method based on a PSO-LSSVM model and related equipment. The method comprises the following steps that S1, parameters of drilling and blasting method construction tunnel back break influence factors are obtained; s2, performing data preprocessing on the parameters; s3, finally determining main parameters influenced by the back break of the tunnel by adopting a grey correlation analysis method; s4, establishing a PSO-LSSVM model by adopting an MATLAB simulation platform; s5, selecting a root-mean-square error as a fitness function, calculating the fitness value of each particle, updating the value of each particle through multiple iterations, comparing and updating the value of Vbest, and judging whether an end condition of PSO is met or not; s6, a PSO-LSSVM model is established according to the optimal parameter combination, prediction is performed by using the model in combination with the back break influence parameters of the specific tunnel blasting engineering, and a blasting effect prediction result is obtained; according to the method, the particle swarm optimization algorithm is adopted to iterate the two key parameters of the optimization model, the blasting effect of the drilling and blasting method can be predicted with high precision, and efficient construction of tunnel engineering is achieved.

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 invention relates to the technical field of hard rock stratum blasting construction, and discloses a hard rock stratum excavation device based on blasting vibration safety control and a using method of the hard rock stratum excavation device. The technical problems that in the prior art, harmful effects exist in underground engineering drilling and blasting method construction, and control is difficult are solved. The system comprises a blasting structure arranged in a hard rock stratum section and a monitoring module arranged on the earth surface, the blasting structure comprises blast holes and vibration reduction holes, the blast holes comprise slotting holes, auxiliary holes and peripheral holes, eccentric non-coupling vibration isolation charging structures are arranged in the slotting holes and the auxiliary holes, and the vibration reduction holes are arranged in the peripheral holes. Comprising a radial non-coupling charging structure and an axial non-coupling charging structure, an energy gathering cover interval charging structure is arranged in a peripheral hole, a vibration reduction hole is formed between a blast hole in a tunnel and a protection object, and the monitoring module comprises measuring points and vibration meters which are arranged in excavated and non-excavated areas on the two sides of a tunnel face. According to the method, the technical level of hard rock stratum blasting excavation construction is improved, and metro hard rock stratum blasting fine design, meticulous construction and control over harmful effects are achieved.

The utility model discloses tunnel blasting drilling auxiliary positioning equipment which comprises a U-shaped frame, supporting legs are installed at the bottom of the U-shaped frame, a protractor is installed at the upper end of the U-shaped frame through a supporting plate, the front side wall of the protractor is connected with an angle measuring scale in a rotating mode, the upper end of the U-shaped frame is connected with a vertical measuring scale in a horizontal sliding mode, and the vertical measuring scale is connected with a horizontal sliding rod. The upper end of the U-shaped frame is symmetrically connected with two connecting rods in a telescopic and sliding mode, and the upper ends of the two connecting rods are jointly and fixedly connected with a horizontal measuring scale. The tunnel blasting drill hole positioning device is reasonable in structural design, can perform auxiliary positioning on tunnel blasting drill holes, can perform telescopic adjustment, can perform accurate positioning on drill holes at different positions, and guarantees subsequent drilling and blasting quality.

The utility model is suitable for the technical field of engineering monitoring devices, and provides a working face monitoring device for a drilling and blasting method construction tunnel, which comprises an unmanned aerial vehicle body, the box body is detachably mounted at the bottom of the unmanned aerial vehicle body; a camera, wherein the camera is arranged on the box body; the two electric guide rails are both mounted on the box body; and the cleaning rod is fixed on the moving pieces of the two electric guide rails, a cleaning brush is arranged on the cleaning rod, and the cleaning brush is in contact with the camera. According to the working face monitoring device for the drilling and blasting method construction tunnel, self-cleaning can be carried out while the construction tunnel is shot, the shooting definition is effectively guaranteed, meanwhile, flexibility is high, and decomposition and disassembly are convenient.

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.