32results about How to "Improve blasting effect" patented technology

The invention discloses a deep hole blasting method for a strip mine step, relates to the technical field of blasting engineering, and aims to solve the problems that an existing strip mine step blasting method is easy to cause excessive large blocks on a slope surface and on the front section of the step, so that the excavation difficulty and the transportation potential safety hazard are increased. The method comprises the steps that an inclined first main blast hole and a vertical second main blast hole are drilled in the end, close to the slope surface, of a step to be blasted; a first auxiliary hole crossed with the first main blast hole is drilled in the slope surface, and a second auxiliary hole is formed beside the first main blast hole of the step; charging each blast hole with explosives; all the blast holes are connected into a detonating network through detonating lines; detonating through an exploder; wherein the first main blast hole and the second main blast hole can be distributed in a quincunx shape, the second main blast hole is vertical, and each main blast hole comprises a filling section and a charging section. According to the method, the auxiliary holes are formed to solve the problem of insufficient explosion stress of the slope and the step front section, and the explosion effect is improved.

The invention discloses a colloidal emulsion explosive with high storage stability and a preparation method thereof. The raw materials for preparing the emulsion explosive comprise ammonium nitrate, calcium nitrate, water, a compound emulsifier, compound wax and a special foaming agent. Wherein the composite emulsifier is a modified span-80 composite emulsifier obtained by carrying out esterification reaction on an anionic carboxylate emulsifier and multiple hydroxyl sites of span-80, and the composite emulsifier has high molecular weight, so that the space volume of a lipophilic group is increased, and an interfacial film is tighter; the special foaming agent is composed of sodium nitrite, zinc nitrate, gelatin peptone, Tween 80, phosphoric acid, urea and water, the gelatin peptone is a green pure natural raw material, the surface tension of an emulsion matrix is effectively reduced, the contact area of the foaming agent and the emulsion matrix is increased, the foaming efficiency is catalyzed by zinc nitrate, and bubbles are good in stability and not prone to escaping due to Tween 80. The use of the compound emulsifier and the special foaming agent improves the blasting performance and storage stability of the emulsion explosive.

The invention belongs to the technical field of rock mass hardness detection, and particularly discloses an anchor rod drill carriage system and method capable of rapidly detecting rock mass hardness, and the system comprises an anchor rod drill carriage which comprises an anchor rod drill carriage body, a drilling unit arranged on the anchor rod drill carriage body, and a while-drilling parameter monitoring unit arranged on the drilling unit; the data processing module is configured to be used for obtaining while-drilling parameters and conducting data processing, the rock mass hardness and the blast hole distance are finally obtained, and on-site rock mass blasting effect optimization is achieved; according to the method, the rock mass hardness can be rapidly detected while drilling on the basis of the parameters while drilling, and the detection efficiency is improved; according to the rock mass hardness, the number and spacing of the blast holes in the sub-areas of different blasting grades are determined, the spacing of the blast holes in the different sub-areas is optimized, field blasting design is guided, the problem that too many or too few blast holes are formed is solved, and therefore the blasting effect is optimized.

The invention discloses a drilling blasting explosive energy transfer mode design and a data simulation method thereof, and relates to the technical field of blasting engineering.The drilling blasting explosive energy transfer mode design method comprises the steps that a rock sample is manufactured, mechanical parameters of the rock sample are tested, and the type of the rock is determined; respectively carrying out bursting tests on the multiple groups of rock samples; measuring, contrastively analyzing the average crushing particle size, the boulder rate and the total seismic wave energy of the central areas of the multiple groups of rock samples; establishing an explosive blasting energy transfer evaluation system, and determining an explosive column installation scheme; the data simulation method comprises the following steps: determining a blasting energy attenuation coefficient, an eccentric influence factor and an explosive energy transfer coefficient of a rock sample; establishing a blasting explosive energy transfer model and an explosive explosion energy density calculation formula; verifying and correcting an explosive explosion energy density calculation formula; the blasting effect can be predicted, the on-site trial blasting frequency is reduced, and the cost is reduced.

This application relates to the field of food processing technology, specifically disclosing a freeze-resistant lava-filled popping bead, its preparation method, and its application. The freeze-resistant lava-filled popping bead comprises an inner core liquid, a popping bead wall material liquid, a curing liquid, and a storage liquid. The inner core liquid comprises the following raw materials in parts by weight: 80-120 parts white sugar, 3-6 parts calcium salt, 30-60 parts edible alcohol, and 41-68 parts water. The preparation method is as follows: white sugar, calcium salt, edible alcohol, and water are mixed until dissolved to obtain the inner core liquid; alginate, glycerin, pectin, and acidic substances are mixed with water until dissolved to obtain the popping bead wall material liquid; calcium salt, chitosan, and water are mixed evenly to obtain the curing liquid; fructose syrup, edible alcohol, and water are mixed evenly to obtain the storage liquid; the inner core liquid is added dropwise to the popping bead wall material liquid for a coating reaction; excess adhesive is filtered out and washed away; the bead is then placed in the curing liquid and the storage liquid in sequence; after packaging and high-temperature sterilization, the finished product is obtained. It has the advantage of bursting and lava-filled core when eaten frozen.

The application discloses a method, device and equipment for arranging blast holes in an underground mine and a storage medium. The method comprises: obtaining blast hole arrangement parameters, which represent parameter requirements related to blasting in the underground mine; generating a blast hole feasible region based on blast hole design accuracy, coordinates of a core point of a drilling machine, the blast hole arrangement parameters and a blasting space range of the underground mine, the blast hole feasible region comprising blast hole positions of a plurality of blast holes; obtaining a blast hole arrangement scheme based on the blast hole feasible region and a set blasting optimization model; and wherein the blasting optimization model takes the sum of error values between hole bottom distances of the blast holes and average hole bottom distances as an optimization target, and the blast hole arrangement scheme comprises target blast hole positions selected from the blast hole feasible region. The blast holes in the underground mine can be optimally arranged in combination with blasting boundary space constraints and parameter requirements related to blasting, thereby maximizing the uniformity of hole bottom distances between the blast holes.

The invention belongs to the technical field of tunnel engineering, and particularly relates to a tunnel blasting scheme design method and system based on a database technology. According to the scheme, a hybrid architecture historical blasting case database comprising structured data and spatial data is constructed, and a progressive retrieval engine and a scheme generation algorithm are combined; the innovation of tunnel blasting design from experience dependence to data driving is realized; according to the scheme, structural features such as blasting parameters and geologic features are deeply fused with spatial features, a proposed progressive retrieval engine is combined, the spatial query efficiency is effectively improved, meanwhile, the matching degree of a reference case and an actual scene is improved, and meanwhile, the matching efficiency of the reference case and the actual scene is improved. According to the scheme, a tunnel blasting scheme generation normal form integrating benchmark maintenance, parameter optimization and expert verification is provided, so that the accuracy of the generation scheme is guaranteed, and meanwhile, the generation scheme can better adapt to an actual scene.

The utility model relates to operation equipment technical field especially, it is tunnel blasthole operation equipment with multi -way stuffing function. It mainly aims at the traditional tunnel blasthole stuffing adopts the pipeline perpendicular to tunnel wall, because the quantity of tunnel blasthole is many, the position is complex, leads to this mode to be difficult to flexibly aim at the blasthole of non - perpendicular or tricky position, there is the problem that the operation is complicated, the efficiency is low, and the following technical scheme is proposed, including the fixed pipe of setting in blasthole one side, the fixed pipe is away from blasthole one end and is provided with the guide pipe, the steering assembly is connected in the fixed pipe with the guide pipe between, the steering assembly is used for adjusting the orientation of guide pipe, the medicine pushing mechanism is installed in the fixed pipe side, the medicine pushing mechanism is used for pushing the medicine bag and inserts it into the blasthole, the let - go component is arranged on the medicine pushing mechanism, and the let - go component is used for letting - go. The utility model has improved the convenience and quality of stuffing operation, and has enhanced the blasting effect and construction safety.

This invention discloses an intelligent projection positioning and drilling accuracy control system for blast holes at tunnel faces, belonging to the field of tunnel drilling and blasting construction technology. It aims to solve the technical problems of inaccurate blast hole positioning and large drilling direction deviations in existing tunnel face systems, leading to low construction efficiency. The key technical points are: the control system includes a structured light projector mounted on a tunnel drilling and blasting trolley, at least two industrial cameras, a fiber optic shape demodulation module, and a controller. A fiber optic shape sensing unit is installed inside the drill rod at the end of the drill arm of the drilling and blasting trolley; the structured light projector projects structured light, the industrial cameras acquire binocular images, the fiber optic shape demodulation module calculates the curvature and torsion angle sequence of the sensing unit, and the controller controls the drill arm drive mechanism to correct the drill bit position and direction through 3D reconstruction, coordinate comparison, and real-time deviation adjustment. This invention achieves intelligent positioning and drilling accuracy control of blast holes at tunnel faces, improving the accuracy and efficiency of tunnel drilling and blasting construction.

The utility model relates to the technical field of mine blasting, and discloses a smooth blasting explosive fixing device in mine mining, which comprises a fixing cylinder body, a top cover device is clamped at the upper end of the fixing cylinder body, a base device is clamped at the lower end of the fixing cylinder body, a guide ring is fixedly connected on the inner wall of the fixing cylinder body, and the guide ring is fixedly connected on the inner wall of the fixing cylinder body. Clamping rods are annularly and fixedly connected to the upper end face of the fixed barrel and the upper end face of the base equipment at equal intervals, after energy-gathered explosives are installed in the fixed barrel, the energy-gathered explosives are located in the middle through a guide ring, after the blasting direction is adjusted, the energy-gathered explosives are pressed, the energy-gathered explosives extrude a second extrusion plate, and then the energy-gathered explosives are driven to rotate; the second extrusion plate drives the fixing rod to move outwards, the fixing rod is inserted into the inner wall of the explosive hole, meanwhile, the telescopic spring is extruded, and when the energy-gathered explosive is pressed to the bottom, the telescopic spring extrudes the second extrusion plate so that the second extrusion plate can clamp and fix the energy-gathered explosive, explosive position deviation is avoided, and therefore the blasting effect is improved.

The present application relates to a kind of precision matching tunneling blast hole variable density charge design method, comprising the following steps: face three-dimensional scanning and preliminary blasting design, drilling construction and lithology parameter acquisition, charge density calculation parameter determination, charge segmentation and linear density calculation, variable density charge and initiation;Compared to the variable density charge technology in the prior art lacks the fine density matching of blast hole, leading to the demand mismatching of explosive energy release and rock breaking, exacerbating the vicious cycle of overbreak and underbreak, and the problem of poor blasting effect, the charge density calculation of the present application integrates overbreak and underbreak distribution data, blast hole type, rock firmness coefficient, blast hole geometric parameter, realizes the double density matching of hole difference + intra-hole segmentation, ensures that explosive energy release and rock breaking demand accurately match, significantly reduces the overbreak and underbreak incidence, and the blasting effect is better.

The utility model belongs to the technical field of blasting auxiliary devices, and particularly relates to a deep hole blasting explosive filling device which comprises an explosive filling pipe, an explosive filling device and a deep hole blasting device. The explosive filling pipe further comprises two half pipe bodies, the two half pipe bodies can be spliced to form the explosive filling pipe, and a splicing seam between the two half pipe bodies forms an explosion guiding groove. The positioning bulge is arranged in the inner wall of the half pipe body and is used for centrally fixing the emulsion explosive filled in the filling space; the connecting part comprises an extending groove part and an extending pipe part which are arranged at the two ends of the half pipe body respectively; aligning inserting grooves are formed in the inner walls of the extending groove parts, aligning inserting strips are arranged on the outer walls of the extending pipe parts, the aligning inserting grooves can be matched with the aligning inserting strips to align detonating grooves in the adjacent explosive filling pipes, and compared with the prior art, the phenomenon that blasting force is dispersed is reduced, and blasting uniformity is improved.

The utility model discloses a peripheral hole charging structure for energy-gathered water pressure smooth blasting, which belongs to the technical field of tunnel construction and comprises a cartridge case, and one end of the cartridge case is connected with a sealing cover. The device has the beneficial effects that by arranging the cartridge case, the stemming layer and the annular water bag, the sealing performance of the peripheral hole blast hole can be high, the sealing performance of the peripheral hole blast hole can be improved, the explosion energy loss during explosive explosion can be reduced, and the explosion effect of the device can be improved; according to the explosive cartridge, filler in the explosive cartridge can be extruded, the filler can be tightly attached, gaps between the explosive cartridge and the filler can be reduced, meanwhile, under the action of a first round water bag and a second round water bag, a water wedge effect can be generated during explosive explosion, further crushing of surrounding rock is facilitated, the boulder rate generated by explosion can be reduced, and the explosive cartridge can be conveniently exploded. And the dust concentration after blasting can also be reduced, and pollution to the environment after blasting is reduced.

The invention relates to the technical field of mixed loading explosive trucks, in particular to an intelligent tube drawing device and method. The intelligent pipe drawing device comprises a controller, a conveying pipe, a hopper, a conveying pump motor, a conveying pump, a flow meter, a reel rack, a reel and a reel motor, the controller is in communication connection with the conveying pump motor and the reel motor, the conveying pipe is coiled on the reel, one end of the conveying pipe is communicated with the conveying pump, the hopper is communicated with the conveying pump, and the conveying pump motor is in transmission connection with the conveying pump. The reel and the reel motor are arranged on the reel rack, the reel motor is in transmission connection with the reel, the visual element, the flow meter and the encoder are respectively in communication connection with the controller, the visual element and the encoder are arranged on the reel rack, the flow meter is arranged on the conveying pipe, the encoder is in transmission connection with the reel motor, and the visual element is in communication connection with the controller. The filling liquid level height can be kept between the end face of a discharging opening in the tail end of an explosive conveying pipe and the surface of a mixed loading explosive filling liquid level during explosive loading, and the pipe can be synchronously pulled out along with the mixed loading explosive filling liquid level height in a blast hole.

The utility model discloses an interval non-coupling grain fixing device for presplitting blasting, which belongs to the technical field of blasting engineering and comprises a cylindrical body with at least one open end, an adjustable charging piece and a fastener, the cylindrical body is used for being placed in a blast hole, the adjustable charging piece is movably mounted in the cylindrical body, and the fastener is used for fastening the adjustable charging piece. The adjustable charging piece is arranged in the cylindrical body and coincides with the axis of the cylindrical body, the axial charging capacity of the adjustable charging piece is adjustable, the adjustable charging piece is used for charging grains with different capacities, and the fastening piece is in threaded connection with the outer wall of the adjustable charging piece and used for positioning the adjustable charging piece at different axial positions in the cylindrical body. According to the utility model, the grains are positioned at the axis position of the blast hole through the barrel-shaped body, and the air interval between the two adjacent grains is adjusted by adjusting the axial charging capacity of the adjustable charging piece and the position of the adjustable charging piece, so that the explosion of the adjacent grains is coordinated with each other; and the overall blasting effect is improved.

The utility model relates to an explosive charging device for mining blasting, which comprises an explosive tube, a fixing sleeve is sleeved outside the explosive tube, two support rods are connected outside the fixing sleeve, the top ends of the two support rods are connected with a same support frame, a fixing seat is connected in the support frame, a cylinder is arranged in the fixing seat in a penetrating manner, and the cylinder is connected with the fixing sleeve. A pneumatic clamping jaw is arranged at the bottom end of the air cylinder, two limiting clamping rings are clamped in the pneumatic clamping jaw, elastic telescopic rods are connected to the inner sides of the two limiting clamping rings, the ends, close to each other, of the two elastic telescopic rods are connected with the same limiting ring, and a medicine storage cylinder is connected into the limiting ring. The device can flexibly and accurately control the distribution position of explosives in the explosive tube through cooperation of stretching and retracting of the air cylinder and the measuring device, meanwhile, through the design of a limiting clamping ring and an elastic telescopic rod, the explosives can be rapidly limited in the explosive tube, accurate distribution of the explosives is completed, and the uniformity and accuracy of explosive distribution are ensured; therefore, the blasting effect and safety are improved.

The invention belongs to the technical field of blasting engineering, and particularly discloses a novel non-coupling smooth blasting method. The blasting method comprises the steps that a row of peripheral holes are formed in the junction of a roadway driving working face and a surrounding rock retaining area, and slotting holes and auxiliary holes are formed in the inner sides of the peripheral holes; designing peripheral hole parameters and a charging structure; a blast hole arrangement diagram is drawn, and holes are distributed; according to the parameter design, peripheral holes, slotting holes and auxiliary hole cartridge bags are manufactured; according to the parameter design, the peripheral holes are filled with the explosive packages in an axial and radial non-coupling explosive loading mode, and the slotting holes and the auxiliary holes are filled with the explosive packages in an axial continuous explosive loading mode; a blasting network is connected and checked, then the slotting holes and the auxiliary holes are detonated firstly, and then the peripheral holes are detonated; a blasting vibration tester is arranged outside the blasting source, and the blasting vibration speed is collected to monitor the blasting vibration magnitude. The explosive loading amount of the peripheral holes and the peak pressure of detonation on the hole walls can be reduced, so that the smooth blasting effect is improved, and the blasting harm caused by blasting vibration is reduced.

This invention discloses a 5G-based remote data monitoring and parameter control system and method for explosive loading equipment. The system includes: a field perception layer, a data transmission layer, a remote control layer, and an execution control layer. The field perception layer includes flow sensors, pressure sensors, temperature sensors, position sensors, speed sensors, a Beidou positioning module, and a camera installed on the explosive loading equipment. These sensors are used to collect data on latex matrix flow rate, sensitizer flow rate, delivery pressure, matrix temperature, hydraulic oil temperature, explosive loading height, delivery pump speed, equipment location, and on-site environmental imagery. This invention achieves remote real-time monitoring and parameter control through 5G communication technology, integrating high-precision data acquisition, rapid data transmission, intelligent data analysis, and precise execution control. It solves many shortcomings of traditional explosive loading equipment, improves explosive loading efficiency, blasting effect, and intrinsic safety level, and provides strong technical support for the construction of smart open-pit mines.

This invention discloses a method for lubrication and drag reduction, as well as rapid static sensitization at the end of a pipeline for transporting mixed emulsion explosives. The method includes the following steps: S1, a latex matrix is ​​pumped into the pipeline using a pump, while a sensitizer is pumped into a lubrication and drag reduction device using a high-pressure plunger pump; S2, the lubrication and drag reduction device evenly distributes the sensitizer on the inner wall of the pipeline, forming a continuous lubricating film, thus achieving layered transport of the latex matrix and sensitizer; S3, the layered latex matrix and sensitizer enter a static mixer at the end of the pipeline for rapid and uniform mixing. This invention utilizes the sensitizer as a lubricant to form a lubricating film through a lubrication and drag reduction device, achieving layered transport of the latex matrix and sensitizer. This significantly reduces transport resistance, solves the problems of blockage and excessive pressure in long-distance transport pipelines, improves transport efficiency and intrinsic safety, and has significant economic and social benefits.

The present application belongs to the technical field of mining, and specifically discloses a method for measuring the minimum resistance line of an open-pit metal mine under special conditions. The position of the turning point of the bench surface is determined by using a long rod and a flexible ruler, the type of the bench is determined according to the position of the turning point, and then a profile drawing of the blast hole at the position is drawn in drawing software according to the bench elevation and the charge length of the blasting design. According to the known parameters, the position of the turning point B of the bench surface in the profile drawing can be determined, and the length of the minimum resistance line can be quickly and accurately measured according to different types of benches, thereby providing an important reference for the blasting design and charge construction, controlling the blasting direction, reducing the risk of punching, effectively improving the blasting effect, and significantly optimizing the blasting design. The present application provides a safe and practical technical means for measuring the minimum resistance line of the bench deep-hole blasting of an open-pit mine, and significantly improves the blasting effect of the open-pit metal mine.

The invention relates to the technical field of open-air rock mine mining, in particular to a deep-hole bench blasting mining method for an open-air rock mine. The method comprises the steps of hole drilling, hole cleaning, cartridge bag preassembling, hole filling, blast hole filling, detonating and the like. Wherein a hole cleaning sleeve with first crushing teeth and second crushing teeth is adopted for hole cleaning, and the hole cleaning sleeve rotates under the action of a driving mechanism and crushes broken stones remaining in a blast hole; a sectional type pre-assembling pipe with a sealing head is used for pre-assembling the cartridge bag, and the pre-assembling pipe is smoothly filled into a blast hole through a bracket and a hoisting mechanism. The blast hole cleaning efficiency is improved, accurate installation of the cartridge bag is ensured, the blasting effect is optimized, the operation process is simplified, and the operation safety and reliability are improved.

The invention discloses an underground upward blasthole plug, comprising a plugging head, a lead hole is arranged on the plugging head, a plurality of elastic blades are arranged in the circumferential direction, and the elastic blades include a middle part, a first connecting part and a second connecting part; the thickness of the first connecting part is less than the thickness of the middle part, and is arranged near the bottom surface of the middle part; the thickness of the second connecting part is less than the thickness of the middle part, and is arranged near the top surface of the middle part; the first connecting part of an adjacent elastic blade and the second connecting part of another elastic blade are arranged oppositely; one end of the elastic blade away from the plugging head is inclined relative to the plugging head, and the height of the side where the second connecting part is connected to the middle part is less than the height of the other side; among two adjacent elastic blades, the first connecting part of one elastic blade and the second connecting part of the other elastic blade can overlap by extrusion. The plugging device can effectively prevent the plugging device from moving and prolong the reaction time of the explosive gas.

The invention relates to the technical field of blasting, and provides a charging method for improving the blasting effect of a viscoplastic rock mass developed by a native fragile structural plane, which comprises the following steps: explosive selection: selecting an explosive with lower sensitivity and higher energy output according to the characteristics of the viscoplastic rock mass; charging structure design: adopting a sectional charging structure, namely dividing the explosive into a plurality of small sections along the length direction of the blast hole, and separating the sections by using an explosive-proof material; explosive charging is conducted, specifically, explosive is stuffed into the blast hole in a wave type explosive charging mode; according to the method, the effective energy utilization rate of blasting of the viscoplastic rock mass developed on the native fragile structural surface can be remarkably increased, the blasting effect can be improved, the unit explosive consumption can be reduced, meanwhile, the excessive smashing phenomenon can be reduced, and the uniformity of the broken lumpiness can be improved; the method further has good safety and operability and is suitable for blasting operation under various complex geological conditions.

The invention belongs to the technical field of rock blasting, and particularly relates to rock breaking equipment and method based on liquid oxygen transient phase change, and the rock breaking equipment comprises a Dewar tank, an infusion platform, a control platform and a blasting cartridge; the chassis is installed at the bottom of the infusion platform, and the part, away from one side, of the bottom of the infusion platform is connected with the chassis through a hydraulic push rod assembly, so that the infusion platform is overturned and laterally inclined on the chassis; after infusion is completed, a worker immediately controls the lifting device to be started, the lifting rod drives the rotating rod to descend, the rotating rod drives the blasting cartridge to descend and be inserted into the blast hole through clamping of the clamping rod and the square hole, the blasting cartridge which is just filled with liquid oxygen can be immediately inserted into the blast hole, and due to the fact that the internal space of the blast hole is small, the contact range of the blasting cartridge and the outside is reduced; the amount of gasified liquid oxygen in the blasting cartridge is reduced, and the accuracy degree of the liquid oxygen during blasting is improved, so that the blasting effect is improved, and the rock breaking effect is further improved.

The utility model relates to the technical field of pilot shaft blocking treatment, in particular to a pilot shaft blocking treatment device which comprises a hydrogen balloon, a blasting assembly and a balance assembly, a protection frame is installed on the outer side of the hydrogen balloon, the blasting assembly is installed on the top of the protection frame, and a connecting frame is installed at the bottom of the protection frame. The balance assembly is installed at the bottom of the connecting frame. The blasting assembly comprises a supporting plate, a top frame, a supporting rod and an explosive containing barrel, the supporting plate is fixedly installed on the top of the protection frame, compared with an existing pilot shaft blocking treatment mode, the principle that hydrogen is lighter than air is used for manufacturing hydrogen balloons, explosives are placed in the explosive containing barrel, and the explosive containing barrel is used for containing the explosives. Explosive is taken to the bottom of a blocked part under the action of air buoyancy, then blasting is carried out, the pilot shaft is dredged through blasting vibration, operation is easy, the use cost is low, blasting is more accurate and stable, the blasting effect is improved, and meanwhile the pilot shaft is protected.

The invention discloses a point cloud fusion-based blasting area modeling method and application thereof, and the method comprises the steps: carrying out the aerial survey scanning of a blasting area through employing an unmanned plane, obtaining the terrain point cloud data of the blasting area, and generating a blasting area surface three-dimensional model; arranging blasting holes in the three-dimensional point cloud model of the surface of the blasting area, and sending hole position information of the blasting holes to a drilling machine to drill holes in corresponding positions of the blasting area; laser scanning is conducted on the interior of the blast hole, blast hole interior point cloud data containing the geological features of the hole wall of the blast hole are obtained, and a blast hole interior geological model is generated; and performing point cloud data fusion on the blast hole internal three-dimensional geologic model according to the hole position coordinates of the distributed holes in the step 2 and the blasting area surface three-dimensional model, performing geologic feature interpolation filling on model space grid points among the blasting blast holes, and establishing a blasting area three-dimensional geologic model with complete blasting area surface topography and internal geologic structure. According to the method, the geological features in the stratum of the blasting area can be more accurately obtained, and guided charging is carried out in the blasting holes according to the geological features of the blasting holes.

The invention provides an anti-blocking hole protection and smooth blasting collaborative operation system for peripheral holes of a large-section tunnel, and belongs to the technical field of tunnel construction. The method comprises the following steps: S1, determining peripheral hole arrangement parameters based on tunnel geological survey data; s2, a combined type anti-blocking hole protecting device is adopted for conducting drilling protection on peripheral holes, the anti-blocking hole protecting device is synchronously installed in the drilling process, and after drilling is completed, residual rock powder in the holes is removed through cooperation of high-pressure airflow and a rock powder collecting assembly; s3, adjusting light explosion parameters according to the rock firmness coefficient; s4, adopting a partition collaborative detonation mode, and adopting millisecond millisecond detonation for the peripheral holes and the main detonation holes; and S5, flatness detection is conducted on the tunnel slope after blasting. According to the method, integrated cooperation of anti-blocking hole protection, smooth blasting parameter optimization, detonation control and parameter closed-loop adjustment is achieved, the peripheral hole drilling quality, the smooth blasting effect and the construction efficiency are improved, the construction cost is reduced, and tunnel construction safety and structural stability are guaranteed.

The application provides a method for reducing vibration by slanting blast hole trenching blasting, which sets a starting blasting area in front of a main blasting area, and specifically comprises the following contents: (1) at least five rows of blast holes with equal depth are set in the starting blasting area, and a blast hole in the middle is taken as a middle row; all the blast holes are slanting blast holes; one half-blast hole is set in the middle row; the blast holes on both sides of the middle row are slanting blast holes which are inclined to a reference surface; (2) the total charge amount of the blast hole in the middle row is 50-60% of the hole depth; the total charge amount of the half-blast hole is one third to one half of the hole depth; the total charge amount of the blast holes on both sides of the middle row is 45-50% of the hole depth; (3) the half-blast hole is first blasted, then the blast holes in the middle row are blasted one by one, and finally the other blast holes in the starting blasting area are blasted one by one; when blasting the blast holes in the starting blasting area, the blast holes are blasted one by one with time delay. The technical scheme of the application can effectively reduce the blasting vibration intensity.

The utility model discloses a modularization carbon dioxide gas segmented blasting equipment relates to carbon dioxide blasting technical field. The utility model discloses a displacement component, the top swing joint of displacement component has clamping and pushing subassembly, the inner chamber clamping of clamping and pushing subassembly has blasting component, and the displacement component includes the frame. The frame in the displacement component of the utility model is as the bearing base, and the universal wheel gives the equipment flexible steering and the removal ability, compared with traditional large -scale equipment, need not rely on special transport tool, can directly shuttle freely in the construction site, significantly reduce transportation cost, through the telescopic adjustment of hydraulic telescopic link, can easily realize the change of placing board angle, keep horizontal bearing blasting component when transporting, reach the hole and can set up the placing board vertically, make blasting component natural perpendicular alignment hole, effectively avoid the knock -about, the problem of inclination in the carrying process, guarantee the equipment safety, improve transportation efficiency and flexibility.

The invention provides a blasthole detonation time sequence determination method and related equipment, and relates to the field of blasting vibration control, and the method comprises the following steps: obtaining vibration waveforms of a plurality of blastholes; determining a recombination intrinsic mode component IMF corresponding to the vibration waveform of each blast hole, and extracting a more accurate vibration velocity peak value of each blast hole from the recombination IMF corresponding to the vibration waveform of each blast hole; determining a target IMF corresponding to the vibration waveform of each blast hole based on the vibration velocity peak value of the reference blast hole, the recombined IMF corresponding to the vibration waveform and the vibration velocity peak values of other blast holes; and determining a plurality of superposition detonation time sequences, combining each superposition detonation time sequence with the target IMF corresponding to the vibration waveform of each blast hole to obtain a plurality of synthetic IMFs, extracting a plurality of synthetic vibration velocity peak values from the synthetic IMFs, and taking the time sequence corresponding to the minimum synthetic vibration velocity peak value as the detonation time sequence of the blast hole. According to the scheme, coordinated blasting among the blast holes can be achieved, the detonating time sequence is optimized, and the blasting effect can be improved.