174results about How to "Improve layout efficiency" patented technology

The invention discloses a tunnel outburst prevention rock mass fracture extension continuous monitoring method based on micro-seismic infield positioning, which comprises the following steps: S1, according to the distance L between a disaster-causing structure and a tunnel face, drilling an advanced drill hole in the tunnel face, acquiring lithology and water inflow information of surrounding rock, and preliminarily determining an outburst prevention rock mass hydraulic communication area range; s2, micro-seismic sensors are arranged on the arch crown, the left wall foot and the right wall foot within the range of L / 2-2 m to L / 2 + 2 m in front of the tunnel face in the drilled advance drill hole correspondingly; s3, recording seismic source microseismic signal frequency, duration and waveform of explosive blasting, mechanical vibration and vehicle traveling, and screening microseismic signals of crack extension in the rock mass; s4, performing rock mass internal fracture extension seismic source positioning by adopting a simplex method; and S5, drawing a micro-seismic event three-dimensional model, and determining the expansion and evolution characteristics and range of the fractures in the hydraulic communication area. According to the invention, the monitoring continuity of the outburst prevention rock mass fracture evolution process of the tunnel and the positioning precision of the water inrush channel can be improved.

The invention discloses a BIM (Building Information Modeling) and genetic algorithm-based tower crane optimization method, system and equipment and a storage medium, and the method comprises the following processes: selecting a tower crane model according to a construction environment and requirements; carrying out BIM modeling on the construction site to obtain a BIM model, and determining the position range of the tower crane; based on the construction site data and the tower crane model in the BIM model, establishing a tower crane mathematical model, and establishing a target function with minimum construction time and cost as a target; and solving the target function by adopting a genetic algorithm to obtain an optimal tower crane arrangement position. The optimization efficiency is improved, the collision risk is avoided, the cost is reduced, and the safety is improved.

The invention discloses a quick and automatic layout method for a warehouse logistics conveying system based on Unity 3D and CAD. The method comprises the following steps: extracting detail data of warehouse logistics conveying equipment; exporting and optimizing warehouse logistics conveying equipment detail data, and adjusting data in exported equipment detail table grids and a list arrangement sequence; the optimized details of the warehouse logistics conveying equipment are imported into Unity; and querying and analyzing data in the equipment details on the basis of a linear traversal algorithm in combination with matrix transformation, and automatically substituting corresponding equipment position information, rotation parameters and scaling into matrix transformation to complete spatial layout and attribute assignment of the warehouse logistics conveying system. Compared with an existing traditional conveying system layout technology, the data conversion step can be reduced, and data interaction of Unity3D and CAD is improved; the modeling cost is reduced, and the project economic benefits are improved; errors of spatial layout and attributes are reduced, and the model precision is improved; compared with the prior art, the layout efficiency of the conveying system can be improved by 70%-85%.

The utility model relates to the technical field of lithium battery testing, in particular to a battery cell thermal runaway testing device. The cell thermal runaway testing device comprises a clamping plate, a thermocouple and an attachment net. The number of the clamping plates is two, the two clamping plates are oppositely arranged so as to clamp the battery cell, an attachment net is arranged between the battery cell and the clamping plate on at least one side, the melting point of the attachment net is higher than 1000 DEG C, the thermocouple is arranged on the attachment net in a snakelike penetrating mode through meshes in the attachment net, and the temperature measuring end of the thermocouple extends out of the side, facing the battery cell, of the attachment net. The attachment net can be pressed against the surface of the battery cell, so that the temperature measuring end of the thermocouple is attached to the surface of the battery cell, and the temperature of the battery cell is monitored. Therefore, the thermocouple is stably fixed on the surface of the battery cell by using the attachment net, so that the thermocouple is not easy to shift or fall off, and the temperature measurement result of the thermocouple is accurate; meanwhile, the attachment net provided with the thermocouples in a penetrating mode can be repeatedly used in multiple tests, so that the arrangement efficiency of the thermocouples in the testing process is improved.

The invention provides an automatic layout method for electronic components of a circuit board, and the method comprises the steps: exporting functional modules in a schematic circuit diagram into an independent circuit netlist, carrying out the layout modeling of the components through employing a single-layer binary tree structure, and carrying out the layout modeling of the whole circuit based on a multi-layer binary tree structure. Therefore, a multi-layer nested binary tree structure is formed. An optimization algorithm is combined with a heuristic strategy, and circuit performance parameters such as wire length, layout area and signal integrity are used as optimization targets to carry out iterative optimization on the layout model. And automatically generating a detailed layout scheme of the circuit board according to the optimized layout model. Before layout, preprocessing of a schematic circuit diagram is carried out, after layout, verification of a layout scheme is carried out, and it is ensured that all design constraints are met. The circuit board design efficiency and quality can be remarkably improved, the workload of manual adjustment is reduced, the risk of design reworking is reduced, and the automatic design level is improved.

The invention provides a building standard floor electromechanical pipeline modular arrangement sequence optimization method, and belongs to the technical field of building construction, and the method comprises the steps: firstly building a fine building BIM model, and dividing an electromechanical system into small modules; then analyzing the relationship between the modules, and determining a necessary sequence and a variable sequence; a weighted directed graph network is established for the variable sequence, and a heuristic function is defined. And searching an optimal arrangement path in the network by adopting an improved A * algorithm, and generating a detailed arrangement scheme. And finally, collision detection and simulation installation are carried out in the BIM model, and the feasibility of the scheme is verified. If problems exist, weight adjustment and optimization are returned until a final scheme is obtained. According to the optimization method, the BIM technology, the graph theory and the heuristic search algorithm are combined, electromechanical pipeline arrangement in a complex building can be effectively optimized, and the technical problem that in the prior art, modular arrangement sequence optimization of electromechanical pipelines of a building standard floor is difficult to achieve quickly and efficiently is solved.

The invention discloses an inverter layout method, system and device, and the method comprises the steps: carrying out the grouping of photovoltaic module groups based on the position information of each photovoltaic module in a power station, and enabling the distance between any two photovoltaic modules in the same photovoltaic module group to be smaller than a first preset distance, the photovoltaic modules in the same photovoltaic module group are connected in series and / or in parallel and then are connected with the same inverter, each photovoltaic module group comprises a plurality of photovoltaic modules, and the distances between the photovoltaic modules in the same photovoltaic module group are small, so that the plurality of photovoltaic modules can be connected with the same inverter, and the photovoltaic modules in the same photovoltaic module group can be connected with the same inverter. And the same inverter inverts the direct current output by the plurality of photovoltaic modules into alternating current. Therefore, according to the invention, the layout of the inverters can be automatically carried out according to the position of each photovoltaic module, the distance between the photovoltaic modules connected with the same inverter is ensured to be small, reasonable inverter distribution is carried out, the arrangement cost of the inverters is reduced, and the layout efficiency is high.

The invention relates to the technical field of subway safe operation monitoring, and discloses a subway tunnel foreign matter invasion identification and positioning system and method, and the system comprises a detection unit, a photoelectric conversion module, a processor, and a transmission optical fiber. The subway tunnel internally comprises at least one running track, two columns of detection units are arranged above each track in the track direction, each column of detection units is provided with a plurality of infrasonic wave sensors, and all the infrasonic wave sensors are located at the same horizontal height. The infrasonic wave sensors in each column of detection units are distributed at equal intervals, and the infrasonic wave sensors in the two columns of detection units are distributed in a staggered manner; the infrasonic wave sensors on each column of detection units are connected in series through transmission optical fibers; the infrasonic wave sensors on each column of detection units are connected to a photoelectric conversion module through a transmission optical fiber; the photoelectric conversion module is connected with the processor. On the basis of ensuring high detection sensitivity and high accuracy, the equipment and the detection method are simplified, and the cost is reduced.

The utility model relates to the technical field of pavement paving, in particular to a 3D asphalt mixture paving device which comprises a material storage structure, a material stirring structure is rotatably mounted on one side in the material storage structure, a plurality of material distribution structures are fixedly mounted on one side of the bottom of the material storage structure, and the material storage structure comprises a material storage hopper. A discharging barrel is fixedly installed at one end of the storage hopper, a discharging opening is formed in the bottom side in the discharging barrel, the stirring structure comprises a rotating shaft, a bidirectional spiral blade is fixedly wound around the side surface of the rotating shaft, and the two ends of the rotating shaft are fixedly connected with the output end of a driving motor. According to the utility model, the rotating shaft is driven by the two groups of driving motors to carry the two-way spiral blade to rotate alternately in the positive and negative directions at the moving frequency, so as to convey a mixture in the two-way spiral blade, convey the mixture in the middle of the discharging barrel to two ends, or convey the mixture at two ends to the middle, and discharge the mixture from the discharging hole; and the relatively uniform material distribution work is continuously carried out.

The invention discloses a separated fish egg and larval fish sample collection device, and belongs to the technical field of fish egg collection, the collection device comprises a main body, the main body can be suspended and lifted on a ship side, the main body is provided with a flow path allowing a water body to vertically pass through, the flow path is internally provided with a support and a collection part, and the collection part is provided with a net body surrounding the side face of the support; the lower part of the main body is provided with a screen through which fish eggs and larvae can pass, the lower end of the screen body is provided with a lower connecting pipe, the lower connecting pipe is fixed with the lower part of the bracket, the upper end of the screen body is provided with an upper connecting pipe, the upper connecting pipe can slide along the bracket, the screen body can transversely expand in the direction far away from the bracket, and the upper connecting pipe is provided with a conical wall expanding upwards. According to the invention, the net body can be quickly lowered to the required water depth, and the catching area of the net body is enlarged during recovery, so that the catching performance of plankton is improved.

The present invention relates to the technical field of automobile structural design optimization methods, and specifically refers to a trunk lid bent tube hinge axis arrangement calculation optimization method. According to the rear modeling CAS surface, as well as known design parameters and set constraints, the trunk lid initial opening θ0 and the hinge axis initial coordinate f0 are set; a hinge optimization area is constructed, and within the hinge optimization area, the trunk lid initial opening θ0 and the hinge axis initial coordinate f0 are calculated based on the hinge span design requirements, human-machine goals, the safety gap of the hinge relative to the sealing strip movement, the safety gap requirements of the trunk lid and the rear windshield during the opening process, the assembly space distance between the hinge axis and the rear windshield, and the trunk lid closing force requirements to obtain the optimal solution for the hinge axis. The optimization method of the present invention is reasonably designed, with rich considerations, avoiding the risk of repeated modifications in the later stage, improving the efficiency of the hinge axis design and development, and has great promotion value.

The invention discloses high-efficiency spraying soldering paste and a preparation method thereof. The high-efficiency spraying soldering paste is composed of the following raw materials in percentage by mass: 75-85% of lead-free soldering powder; the particle size of the lead-free solder powder is 15-25 [mu] m; 15%-25% of soldering flux; the soldering flux is composed of the following raw materials in parts by weight: 15-25 parts of polymerized rosin; 5-15 parts of hydrogenated rosin; 5-10 parts of rosin glyceride; 3 to 5 parts of ethyl palmitate; and 3-5 parts of calcium chloride and the like. The lead-free solder powder with the particle size of 15-25 microns is adopted, the cost is low, and the soldering flux of the formula is used in a matched mode, so that the product can be subjected to injection arrangement through various injection devices, a traditional steel mesh printing mode is replaced, the arrangement efficiency of the solder paste is effectively improved, and the production cost is reduced. In addition, the soldering paste is very good in wettability in the spraying process, spraying is smooth, the welding spot quality is stable, and the reliability and the production efficiency of electronic products can be improved.

This utility model discloses an electric push rod telescopic support leg structure for a self-loading and unloading emergency generator, including four support leg assemblies set at the four corners of the self-loading and unloading emergency generator, an upper U-shaped seat fixed to the top surface of the transverse support column, an upper limit seat fixed to the side of the top of the electric push rod and corresponding to the upper U-shaped seat, a lower U-shaped seat fixed to the bottom surface of the transverse support column, a lower limit seat fixed to the side of the bottom of the electric push rod and corresponding to the lower U-shaped seat; a cylindrical pin; and a press-type quick-limiting structure set on the lower limit seat and the upper limit seat. This application overcomes the problems of cumbersome operation and low efficiency of the bolt locking method in the prior art by adopting the combination of cylindrical pin and press-type quick-limiting structure. This structure can realize quick and stable limiting when the electric push rod is rotated to a vertical or horizontal state, which greatly improves the layout efficiency of the entire electric push rod telescopic support leg structure.

The invention provides a GIS equipment intelligent transportation and arrangement system and method based on digital twinning, and relates to the technical field of power equipment installation. The system comprises an equipment cleaning module, an equipment transportation and arrangement module, a digital model module, a data acquisition module, a data transmission module and a remote monitoring module. Wherein the equipment transportation module is composed of a GIS equipment transportation vehicle, a transportation track and a GIS indoor bridge crane, and is used for carrying GIS equipment; the data transmission module establishes data interaction among the functional modules and is responsible for remote distribution; the data acquisition module carries out fusion calculation on sensor, control and position information; and the remote monitoring module is used for visual display and interaction of the digital twinning. The expandability and the flexibility of the system are improved by adopting a modular design; and by combining high-precision RTK positioning, multi-sensor fusion and virtual simulation synchronization technologies, the precision, efficiency and safety of the GIS equipment in the indoor carrying and arrangement process of the transformer substation can be remarkably improved.

The invention discloses a diamond arrangement machine facilitating diamond arrangement of special-shaped diamonds and a diamond arrangement method thereof.The diamond arrangement machine executes the following steps according to prefabricated patterns: a machine head selects the special-shaped diamonds needing to be sucked according to pattern design and moves the special-shaped diamonds to the position above a vibration tray of a diamond feeding device used for achieving feeding of the special-shaped diamonds; a camera on the machine head collects images of the special-shaped drills in the vibration charging tray; the machine head moves relative to the vibration tray, so that a suction head of the drill suction mechanism moves to the position of the special-shaped drill to be sucked, and the special-shaped drill is sucked; the machine head is designed according to patterns and moves above the platen, and the special-shaped drill is placed on the transfer paper with the glue to set point positions. No matter the orientation of the special-shaped drill is in any direction before the special-shaped drill is sucked by the suction head, the suction head can be driven by the angle adjusting motor to rotate by a corresponding angle, so that the orientation of the special-shaped drill after pattern arrangement is consistent with that of pattern design finally.

The utility model provides hoisting equipment for vehicle tarpaulin laying, which comprises a support frame, a cantilever arranged on the support frame and a longitudinal beam arranged on the cantilever, and a transverse crown block used for driving the longitudinal beam to lift and move is arranged on the cantilever; a plurality of clamping mechanisms used for clamping tarpaulin are arranged on the longitudinal beam at intervals, each clamping mechanism comprises a mounting seat and a clamping assembly arranged on the mounting seat, each clamping assembly comprises a cam and a clamping wheel used for being matched with the cam to clamp the tarpaulin, the cams are rotationally mounted on the mounting seats, and the clamping wheels are arranged on the mounting seats. A driver for driving the cam to rotate is arranged on the mounting seat; and a mounting frame for mounting a clamping wheel is arranged on the mounting seat. The hoisting equipment for laying the vehicle tarpaulin has the advantages of being easy to use and operate, capable of being used for rapidly hoisting and laying the vehicle tarpaulin, good in laying effect and high in laying efficiency.

The utility model relates to an auxiliary tool for installing a large fixed pulley block of a crane, the auxiliary tool is matched with a flat car or a module car for use, the auxiliary tool comprises a jacking jig frame and a supporting lifting lug, the jacking jig frame comprises two cylinder jig frame groups which are arranged in parallel, and the central axis of each cylinder jig frame group is vertically arranged; a space for vertically placing the fixed pulley block is reserved between the two cylindrical jig frame groups, the top surfaces of the two cylindrical jig frame groups are respectively provided with a first track beam for supporting the fixed pulley block, the two groups of supporting lifting lugs correspond to the two cylindrical jig frame groups in a one-to-one manner, and the two groups of supporting lifting lugs are respectively arranged on the two sides of the fixed pulley block; according to the auxiliary tool, in the jacking process, the installation angle and position of the fixed pulley block can be rapidly adjusted through the flexibility of the flat car and the module car, assistance of large hoisting equipment is not needed, the problem that the site, the hoisting equipment and the hoisting space are limited is solved, and the installation efficiency and the operation safety are greatly improved.

The application discloses a power strip-oriented layout optimization method, device, equipment and product, which is used for laying multiple power strips on a chip. The layout optimization method comprises the following steps: acquiring an available wiring area of the chip; converting the available wiring area into multiple rectangular strips based on geometric characteristics of the available wiring area; constructing multiple candidate sets of a first power strip based on a preset layout constraint rule and the multiple rectangular strips; and laying multiple power strips based on candidate sets meeting a preset phase requirement in the multiple candidate sets. The method aims to provide a layout optimization method for an available wiring area which is non-rectangular, has steps or holes, and can ensure that the starting phase of the power strip and the area geometry are coordinated and optimal when the layout is performed.

The invention relates to the technical field of electrical equipment tests, in particular to a rotary buckle for a test hanging rod, which comprises an insulating grip, a telescopic support rod and a rotary buckle body, one end of the telescopic support rod is conducted with the insulating grip, the other end of the telescopic support rod is conducted with the rotary buckle body, and the telescopic support rod comprises a noctilucent identification sticker and a first stud. A fourth threaded block is arranged in the first stud, the rotary buckle body comprises a rotary clamping groove and a buckle piece, the rotary clamping groove is embedded in the first stud, the rotary clamping groove and the buckle piece are rotationally embedded, a top clamping head is arranged at the upper end of the buckle piece, and a rotary clamping block is arranged on the surface of the upper end of the top clamping head; the upper end of the rotary clamping block is rotatably clamped with an insulating connector, the insulating connector is connected with a test rod head body, and the inner side of the test rod head body is symmetrically provided with wire fixing clamps; the connector has the advantages that the applicability and flexibility of the connector are improved, the structure is simple, quick connection and disassembly can be realized, and the working and arrangement efficiency is improved.

The utility model provides a leveling device of a lead tractor, which comprises a device bottom plate, a first fixing seat is fixedly connected to the front end of the upper surface of the device bottom plate, and a first mounting hole is transversely formed in the side surface of the first fixing seat in a penetrating manner. According to the leveling device of the wire traction machine provided by the utility model, the two clamping blocks and the two traction wheels are arranged, so that when the device is used, a wire passing through the traction machine passes through the two clamping blocks and the two traction wheels of the device, and then the wire is flattened; the first two-way threaded rod and the second two-way threaded rod are rotated to drive the two clamping blocks and the two traction wheels to clamp a wire, then the two traction wheels rotate under the action of the servo motor to drive the wire to move backwards, and the clamping blocks clamp the front end of the wire, so that the backward movement of the wire is blocked, and the wire is prevented from being damaged. And at the moment, the wire is tensioned, and the wire can be remodeled and leveled in the process, so that the subsequent arrangement is facilitated, and the arrangement efficiency is improved.

The invention discloses a magnetic type non-polarized electrode device, which belongs to the technical field of geophysical exploration, and comprises a non-polarized electrode, a magnetic head A, a wire and a plugging clamp, the non-polarized electrode comprises an electrode body and a magnetic suction head B; the electrode core of the electrode body extends out of the top end of the electrode body; the magnetic suction head B is sleeved outside the electrode core and is fixedly connected to the top end of the electrode body; the magnetic suction head A comprises a conductive column; the conductive column is of a telescopic structure; the magnetic suction head A and the magnetic suction head B are in magnetic suction fit, and a conductive column of the magnetic suction head A abuts against the end of the electrode core. And the plugging clamp is electrically connected with the conductive column of the magnetic suction head A through a wire. Accurate connection between the non-polarized electrode and the connecting line is achieved through the magnetic suction head, and a stable signal transmission channel can be formed between the multi-channel cable and the ground.

The invention provides a position monitoring system for a nuclear instrument of a nuclear power plant and an arrangement method. The position monitoring system comprises a guide cylinder, a first position monitoring unit, a second position monitoring unit and an upper computer. The guide cylinder is pre-buried at the periphery of a reactor pressure vessel, and a mounting channel for nuclear instruments to pass through is arranged in the guide cylinder; the first position monitoring unit is used for monitoring the current position of the nuclear instrument in real time, is arranged on the side wall of the guide cylinder and corresponds to the upper side of the working position of the nuclear instrument; the second position monitoring unit is used for monitoring the current position of the nuclear instrument in real time, is arranged on the side wall of the guide cylinder and corresponds to the lower side of the working position of the nuclear instrument; and the upper computer is in communication connection with the first position monitoring unit and the second position monitoring unit and is used for acquiring the current position of the nuclear instrument monitored by the first position monitoring unit and the second position monitoring unit in real time. The nuclear instrument installation precision requirement can be met, and the arrangement efficiency is improved.

The utility model provides a kind of glass material camouflage net traction structure, the utility model relates to camouflage equipment technical field, it includes main component, main component contains type piece, multiple pivot and pinion;Second pivot is rotatably connected with winding wheel, and main component side is connected with traction assembly by traction line.This utility model realizes the convenient traction of glass material camouflage net by the cooperation of main component, winding wheel, traction assembly and locking assembly, and it is labor-saving to operate;Winding wheel ensures that traction line is orderly received and released, and traction is stable;Locking assembly prevents traction line from backtracking, improves use safety and reliability, and has higher practical value.

The utility model provides a gauze bandage elasticizing device, belongs to the technical field of elasticizing equipment, and aims to solve the problem that the replacement efficiency of a wind-up roll is affected as the wind-up roll needs to be manually mounted in the conventional elasticizing machine. Comprising a supporting mounting frame, a positioning preheating piece, a movable preheating piece, a wire mixing roller, a positioning supporting plate, a limiting pressing plate, a positioning mounting frame, a driving piece and a sliding clamping plate. The positioning preheating piece is in bolted connection with the front side of the supporting mounting frame; the movable preheating piece is hinged to the rear side of the positioning preheating piece; the tobacco shred mixing roller is rotationally connected to the lower part of the supporting mounting frame; the positioning support plate is fixedly connected to the lower part of the support mounting frame; the limiting pressing plate is slidably connected to the upper side of the positioning supporting plate. The positioning mounting frame is fixedly connected to the front end face of the supporting mounting frame. The driving part is in bolted connection with the left side of the positioning mounting frame; the sliding clamping plate is slidably connected to the right side of the supporting mounting frame. According to the utility model, the inconvenience of manually installing the wind-up roll is avoided, a large amount of time is saved, and the replacement efficiency of the wind-up roll is improved.

The present application discloses a layout method for optimizing hold time, which relates to the field of FPGA technology. After the layout method arranges the FPGA chip according to the user input netlist to obtain the initial layout state, it determines the layout position of the logic units on each hold time critical path in the user input netlist, and then takes the logic units on the same hold time critical path as the optimization goal to move in a relatively distant trend, and legalizes the layout of the initial layout state. This method optimizes the layout legalization process under the overall layout idea of ​​combining global layout with local optimization to complete the legalization operation. In the local optimization process, the logic units on the same hold time critical path are made as discrete as possible to increase the delay, and then the hold time violation repair can be completed through layout legalization, so as to obtain a layout result in which all paths meet the setup time requirements and the hold time requirements, thereby improving the layout efficiency.

The utility model provides a tarpaulin laying device for a vehicle, which comprises a support frame, a cantilever arranged above the support frame and an outer side longitudinal beam arranged on the cantilever, and a transverse crown block used for driving the outer side longitudinal beam to lift and move is arranged on the cantilever; an inner side longitudinal beam and a lifting mechanism for driving the inner side longitudinal beam to lift are arranged at the position, corresponding to the outer side longitudinal beam, of the supporting frame; a plurality of hook mechanisms for hooking tarpaulin are arranged on the inner side longitudinal beam and the outer side longitudinal beam, each hook mechanism comprises a sliding seat and a hook piece arranged on one side of the sliding seat, an upper roller and a lower roller are correspondingly arranged on the sliding seat, and a fit clearance matched with the inner side longitudinal beam or the outer side longitudinal beam exists between the upper roller and the lower roller. The tarpaulin laying device for the vehicle has the advantages of being simple in structure, easy to use, good in tarpaulin laying effect and beneficial to improving the laying efficiency of the tarpaulin for the vehicle and reducing the labor intensity of operators.

The utility model relates to a cluster unmanned aerial vehicle rapid stacking and storing device which comprises a plurality of brackets which are stacked from top to bottom and used for bearing and placing unmanned aerial vehicles, and the brackets are connected in a stacking mode in a mortise and tenon joint structure mode. Compared with the prior art, a plurality of unmanned aerial vehicles can be stored in a combat state, the process that the unmanned aerial vehicles are taken out of a transportation box and then assembled is omitted, and therefore the follow-up unmanned aerial vehicle arrangement time is shortened, the unmanned aerial vehicle arrangement efficiency is improved, and meanwhile the stacking storage mode is adopted; the storage number of unmanned aerial vehicles in the same area and in the same state is greatly increased.

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 utility model relates to the field of shield tunnel construction, in particular to a shield tunnel secondary lining end die which comprises a steel plugging die, a telescopic plug plate and an ejector block, in the process of shield tunnel secondary lining construction, the steel plugging die can be rotated firstly, so that the lower half part of a secondary lining is plugged by the steel plugging die, and the telescopic plug plate is arranged on the lower half part of the secondary lining; the embedded steel bars are arranged on the upper surface of the steel plugging die, in this way, effective arrangement of the construction joint steel bars is achieved, after arrangement of the steel bars is completed, the telescopic plug plate is installed above the steel plugging die, plugging of the upper half portion of the second lining is achieved, meanwhile, the ejector block is installed, and surrounding of the second lining area is achieved. Meanwhile, due to the split type design, the problem that in the related technology, an integral type end die is difficult to rectify deviation is effectively solved, steel bars at the position of a construction joint can be adjusted more conveniently, and the problem that in the shield tunnel construction process, longitudinal steel bars in the construction joint are arranged in a full-length mode and are prone to deviation is solved to a certain degree.