129 results about "High stress" patented technology

The invention discloses a manufacturing method for preventing a single-board guitar panel from recessing, and relates to the technical field of manufacturing for preventing the single-board guitar panel from recessing, and the method comprises the steps: carrying out the finite element stress simulation of a three-dimensional digital model of the single-board guitar panel, and determining a high-stress region in a stress state; according to the distribution characteristics of the high-stress area, generating a structure model of the bionic support network through topological optimization; preparing a lightweight support net with a bionic structure by adopting an additive manufacturing process based on the structure model; the method comprises the following steps: placing a to-be-processed veneer panel on a rigid mold with a preset curved surface, and carrying out plastic pre-deformation on the to-be-processed veneer panel under the action of vacuum negative pressure to obtain a pre-formed panel; a lightweight supporting net is fixed to a high-stress area on the inner side of the preformed panel; the modularized metal framework with preloaded stress is installed at a preset position in the guitar body to form a reverse acting force system which resists the downward sinking of the panel; and carrying out integral curing treatment on the guitar body provided with the supporting net and the metal framework to complete integrated manufacturing.

The utility model provides a concrete filled steel tube arch frame semi-flange connection node structure. The concrete filled steel tube arch frame semi-flange connection node structure structurally comprises a concrete filled steel tube arch frame, a semi-flange plate connection part, a screw rod, a nut, a waterproof layer and CFRP fiber cloth, the half flange plate connecting part is a half flange plate provided with a groove, and the lower half part of the connecting joint of the outer steel pipe is placed in the groove of the half flange plate and is welded with the half flange plate; waterproof layers are laid on the outer side and the periphery of the top of the connecting joint, and the waterproof layers of the connecting joint and the half flange plate connecting part are integrally bundled through CFRP fiber cloth. According to the structure, the problem of stress concentration on the contact surface of a traditional full-flange connection structure and surrounding rock can be effectively solved while the advantages of a traditional flange connection node are reserved. In tunnel engineering under the high-stress surrounding rock condition, the node structure can adapt to the large-deformation working condition of the surrounding rock, and a good choice is provided for supporting design of the concrete-filled steel tube tunnel under the complex geological condition.

The embodiment of the invention discloses a multi-stage collaborative supporting method and structure for an ultra-deep well large-span chamber, and the method comprises the following steps: firstly identifying an overlying key rock stratum and calculating a pressure relief range, carrying out'skylight opening 'excavation on the overlying key rock stratum of the large-span chamber to realize high stress transfer and pressure relief, and releasing pressure for the large-span chamber to be excavated. The cavern is in a low-stress state, and dynamic disasters such as rock burst and the like caused by cavern stress concentration or high-stress cavern large-deformation disasters are reduced; precise excavation is carried out to form a chamber, first-time supporting is carried out, high-pretightening-force yielding anchor cables are applied to a top plate and side parts, and a deep and shallow part cooperative bearing layer is formed through long anchor cables and short anchor cables; and then secondary supporting is carried out, loosening blasting pressure relief is carried out on the base angles, a high-strength concrete-filled steel tube support is erected, and the space between the high-strength concrete-filled steel tube support and the surrounding rock is filled with a yielding back plate. And then grouting anchor cables are constructed at the bottom corners to block stress transfer, and pressure relief drill holes are constructed in the top slope part to regulate and control the surrounding rock stress. And finally, an anti-slide pile is vertically arranged in the center of the bottom plate.

The application provides a heat absorption tower structure system of a tower type photo-thermal power station, which comprises a heat absorber, a concrete cylinder, a vertical cylinder, a steel frame, a reinforcing mechanism, a first connecting mechanism and a second connecting mechanism. The vertical cylinder is arranged in the cavity of the concrete cylinder and partially extends out of the concrete cylinder, the steel frame is arranged above the concrete cylinder and surrounds the outside of the vertical cylinder, and the heat absorber is arranged on the steel frame. The reinforcing mechanism is connected between the concrete cylinder and the steel frame to limit the movement of the steel frame relative to the concrete cylinder, thereby realizing the vertical conversion of the steel-concrete structure. The first connecting mechanism fixedly connects the concrete cylinder and the vertical cylinder to form a rigid horizontal connection of the lower tower body. The second connecting mechanism connects the steel frame and the vertical cylinder and allows the relative horizontal displacement of the two within a preset range. The heat absorption tower structure system has high stress synergy and deformation coordination capability, can reduce the construction cost, and meets the requirements of high reliability, light weight and stable support of the heat absorption tower of the tower type photo-thermal power station.

The application discloses a kind of thermoplastic composite continuous forming methods.The system includes successively in the direction of material travel: multiple roll unwinding mechanism, flattening arrangement, continuous mould pressing device and double steel belt presser.Wherein, continuous mould pressing device is made of multiple independent presser module, for applying 5-15MPa high pressure to realize the sufficient impregnation of resin to fiber;Double steel belt presser follows immediately, for applying 1-3MPa low pressure to eliminate surface indentation generated in mould pressing process.The application is by high pressure impregnation and low pressure finishing function clear distinction and collaborative use, overcome the technical contradiction that impregnation quality and surface quality are difficult to obtain in prior art, both ensure the excellent internal impregnation quality of composite material, also obtain high surface flatness, realize the continuous production of high-quality thermoplastic composite plate.

The present invention relates to safe strengthened glass with a low-variation-amplitude tensile stress region, a preparation method and an application. The change curve of the compressive stress and tensile stress of the strengthened glass meets a specific function relationship; within the range of 0.45-0.85 mm, the stress distribution meets the following condition: the stress curve is within the following Log-PI function range, the upper limit Fmax of the compressive stress meets the formula (1): Fmax=b+(2*a / PI)*(w / (4*(x−c){circumflex over ( )}2+w{circumflex over ( )}2)), and the lower limit Fmin of the compressive stress meets the formula (2): Fmin=b+(2*a / PI)*(w / (4*(x−c){circumflex over ( )}2+w{circumflex over ( )}2)); or the chemically strengthened glass comprises a first stress region and a second stress region, wherein the stress range of a first subregion in the first stress region includes that the minimum value of the stress difference value of the glass thickness t in the region of 0-10 micrometers is greater than 1 Mpa; and the pressure difference value of the second stress region is smaller than that of the first stress region. The deep compressive stress region of the strengthened glass has relatively high stress, and the tensile stress region has very-low-degree variation amplitude, so that the glass has excellent mechanical strength, very high stability and very high safety.

This invention discloses a pressure-induced heating composite material, comprising: a flexible support layer, which is a PI film; a first triboelectric material layer, which is a CNT-OH / PVDF-HFP composite film, attached to one side of the flexible support layer; a second triboelectric material layer, which is an AgNW / PDMS composite film, attached to the other side of the flexible support layer; a pyramidal microstructure is constructed on the surface of the second triboelectric material layer; and a thermoelectric conversion layer, attached to either the first or second triboelectric material layer. The thermoelectric conversion layer is prepared by combining Bi2Te3 / Sb2Te3 heterojunction nanosheets, PEDOT:PSS hydrogel, and Ti3C2TxMXene, with each component being doped with each other to form a uniform dot-like spatial distribution structure. The material of this invention exhibits high response under low pressure because the pyramidal microstructure increases the contact area change rate by 400% under low pressure (≤5kPa) and achieves a charge density of 1.2–1.5 mC / m², breaking through the high-pressure triggering bottleneck of existing materials.

The invention discloses a grid side wall imaging method. The method comprises the steps that a semiconductor structure which has a grid and a first side wall which covers the side wall of the grid is provided; a polycrystalline carbon layer is prepared to cover the surface of the semiconductor structure; the polycrystalline carbon layer is partially removed, so that a second side wall of the grid is formed on the surface of the first side wall; after a source drain implantation process is carried out on the semiconductor structure, the second side wall is removed; and a source drain annealing technology is continued. According to the grid side wall imaging method provided by the invention, through oxygenated plasma treatment, a polycrystalline carbon side wall which is used as a main side wall can be neatly removed; without using an SPT process which needs to be carried out in a specific etching cavity, the problem of void in a high stress through hole etching stop layer process can be solved; a process flow is simplified; and the production cost is reduced.

The invention relates to the technical field of channel steel welding, and discloses hot-rolled channel steel butt welding equipment and a welding process thereof.The hot-rolled channel steel butt welding equipment comprises an operation table, and an adjusting roller and a rotating disc are rotationally installed on a welding station of the operation table. Through precise cooperation of the combined grooves of the adjusting rollers, the spot welding gun stably moves downwards to a welding station along a precise track, the problems of welding spot deviation, welding skips and the like caused by positioning deviation are effectively avoided, meanwhile, based on the innovative design of gear meshing transmission and the vortex-shaped linear guide rail, after one-time spot welding is completed, the welding efficiency is greatly improved, and the welding quality is improved. The spot welding gun can be accurately driven to be switched to the next station in order, seamless connection of the spot welding process is ensured, and the welding period is greatly shortened; besides, due to the special self-adaptive encryption spot welding function of the equipment, the spot welding distance can be automatically adjusted in a high-stress area in the center of a welding seam according to the stress distribution characteristic of channel steel, the welding spot density is increased, the mechanical property of a welding structure is optimized in a targeted mode, the anti-fatigue capacity and the bearing strength of a welding joint are effectively improved, and the high-strength application requirement of engineering is fully met.

This invention relates to the field of butterfly head manufacturing technology, specifically to a butterfly head that is easy to process and has controllable precision, and its stamping and forming method. The head includes a body, a reinforcing rib layer disposed at the bottom of the body, a connecting component disposed at the bottom of the body, and a sealing element disposed at the bottom of the connecting component. The butterfly head structure of this invention is relatively simple, easy to process and manufacture, and can improve production efficiency. Adding a reinforcing rib layer to the settling groove of the body blank can increase the strength and rigidity of the product. Using aluminum-nickel alloy, aluminum-copper alloy, and aluminum-silicon alloy powders for hot pressing sintering gives the reinforcing rib layer good mechanical properties and corrosion resistance, which enables the butterfly head to have high stress resistance and better withstand external pressure and force loading.

The application discloses a load-bearing wall structure optimization design method based on parameterized modeling and belongs to the technical field of building structure design optimization. The method comprises the following steps: obtaining geometric boundary parameters, material attribute parameters and connecting node parameters of a load-bearing wall, and generating an initial wall parameter set; constructing a multiscale initial grid model comprising macroscopic scale grids and microscopic scale grids; applying a load boundary condition to perform nonlinear iterative solving to obtain a wall stress redistribution trajectory; identifying a high stress gradient area according to the stress redistribution trajectory, performing reverse correction on the initial wall parameter set by using regional local parameters and iteratively converging to generate an optimized wall parameter set. The method can accurately simulate local stress concentration at the connecting node, realize adaptive parameter optimization based on a stress transmission path, and improve design efficiency and structural economy.

The invention belongs to the field of metal materials, and provides a wide and thick steel plate for a 500MPa-grade anti-fatigue corrosion-resistant deep sea subsea pipeline and a production method of the wide and thick steel plate, in the components, the design of low C, Mn and Al is adopted, elements such as Mg, Ce and Ca are used for compositely regulating and controlling inclusions, by compositely adding Nb and V, controlling N and reducing the content of Ti and Al, Nb and V are promoted to play the roles of microalloy solid solution, precipitation, fine grain and the like, and the steel plate can be used for manufacturing the deep sea subsea pipeline. The fatigue life of the steel plate produced by using the steel plate is greater than or equal to 2 * 106 times under high stress, and the fatigue stress amplitude is 30kpsi; the CTOD is greater than or equal to 0.6 mm at-45 DEG C, the HIC corrosion resistance is qualified after being corroded by a NACE standard A solution for 96 hours, and the SSCC corrosion resistance is qualified after being soaked in a saturated H2S solution for 720 hours under a 90% stress loading condition and is free of visual cracks under 10-time magnification observation; and the complex and harsh service requirements of the deep sea subsea pipeline steel are met.

The utility model discloses a high-toughness broken bridge aluminum, which comprises a central square tube, a central tube, an arc-angle groove surface A, an arc-angle groove surface B, an arc-angle groove surface C, an arc-angle groove surface D, a solid cylinder and a T-shaped piece, and has the beneficial effects that the structure is novel, the toughness of the broken bridge aluminum is stronger, the broken bridge aluminum can be used in specific occasions, and the service life of the broken bridge aluminum is prolonged. When the bridge-cut-off aluminum is used in the environment with large stress, even if the bridge-cut-off aluminum is subjected to impact force frequently, the bridge-cut-off aluminum does not deform or even break, so that the use safety of the bridge-cut-off aluminum is guaranteed, and the service life of the bridge-cut-off aluminum is guaranteed.

To provide a method for manufacturing a joint that can suppress the occurrence of cracks in the fillet portion. [Solution] A bonded body is manufactured by joining a first body to be joined 11 and a second body to be joined 13 via a bonding layer. A paste containing copper particles and an organic solvent is applied to the first body to be joined 11 to form a coating film 12X. The second body to be joined 13 is placed on the coating film 12X to form a laminate 15. The laminate 15 is heated and pressurized to sinter the copper particles in the coating film 12X and form a bonding layer. Heating is gradually increased from the heating start temperature to the maximum temperature Tm, and pressurization is gradually increased from the pressurization start pressure to the maximum pressure Pm, and the pressure when the heating temperature reaches 200°C is kept at 15 MPa or less.

The invention relates to an anti-scaling film evaporator and a working method thereof, and relates to the field of film evaporators. According to the technical scheme, through the collaborative integrated design of the variable-diameter spiral turbulent flow half-pipe clamping sleeve, the disc type material distributor with the flow guide plate and the detachable hinge scraper assembly, the technical problem of a large easily-scaled material film evaporator is comprehensively solved, and high-performance long-period stable operation under high pressure and high load is achieved; according to the variable-diameter spiral turbulent flow half-pipe jacket, by means of the synergistic effect of flow channel reducing and built-in turbulent flow, the heat transfer performance is improved, meanwhile, an inner cylinder is thinned, the high-pressure requirement and cost are considered, and thermal resistance is optimized; the guide plate can ensure uniform material distribution, so that the product quality and the equipment reliability are improved; the detachable hinge scraper assembly simplifies maintenance of scaling parts, greatly shortens downtime, and improves usability of a production line.

The utility model discloses a fine crushing device for coal processing, which comprises a frame, a feed port and a discharge port, the feed port and the discharge port are arranged at the top end and the bottom end of the frame, two rotatable crushing rollers are connected in the frame and are distributed in a staggered manner, and a plurality of crushing grooves and a plurality of crushing bulges are arranged on the surfaces of the crushing rollers. A crushing area is formed by the crushing protrusions and the crushing grooves of the other crushing roller, the rack is connected with a scraping plate used for scraping materials on the surfaces of the two crushing rollers, and the rack is connected with a driving mechanism used for driving the two crushing rollers to rotate. Local high stress can be generated when materials are extruded by the edge of the crushing groove, the materials can be promoted to be broken, fine materials can be obtained, the machining quality is improved, a traditional smooth crushing roller design is replaced, meanwhile, residual materials on the crushing roller can be scraped by the scraping plate, the crushing roller is cleaned, the situation that the crushing efficiency is affected due to material accumulation is avoided, and the service life of the crushing roller is prolonged. The practicability is high.

This invention relates to the field of laser cladding technology, specifically to a toughened and reinforced laser cladding alloy powder and its preparation process. It solves the problem of poor hardness and toughness of the cladding layer formed by existing laser cladding alloy powders during use. This laser cladding alloy powder incorporates scandium / erbium-loaded nano-silica and tannic acid-hydroxypropyl cellulose-coated boron nitride. Loading scandium and erbium onto the nano-silica improves the wear resistance and tensile strength of the cladding layer. Coating the boron nitride surface with tannic acid-hydroxypropyl cellulose powder improves the wettability between boron nitride and the metal matrix, reducing interface defects. The synergistic effect of rare earth elements and boron nitride reduces porosity and cracks in the cladding layer. It also improves density by refining grains and strengthening interfacial bonding, further enhancing the material's wear resistance and tensile strength, ensuring service life and reliability under high temperature and high stress environments.

The utility model relates to a tensile self-contraction power line assembly, and aims to improve the tensile capability and the automatic contraction performance of a power line. The power line assembly comprises a power line body and a spring winding box, the power line body is composed of at least one strand of conductor core, an insulating layer, a fiber reinforcing layer and an outer sheath, and the fiber reinforcing layer is made of aramid fibers or fiber materials with similar tensile strength so as to provide longitudinal tensile support and enhance the tensile resistance and durability of the power line. The outer layer is coated with the elastic low-carbon steel wire tensile strip, and the spiral structure of the elastic low-carbon steel wire tensile strip enhances the self-contraction performance of the power line, so that the power line is prevented from being wound, and the use convenience and safety are improved. By accurately controlling material selection and structural design, the high-strength flexible cable can maintain excellent electrical performance and mechanical reliability under the conditions of high stress and frequent bending, and is widely applicable to high-strength use scenes.

This invention discloses a GH4169 alloy extra-large turbine disk skin structure and its design method, belonging to the field of metal material forming. The skin structure, with its forging surface radially along the center hole of the rough-machined turbine disk delivery part, includes a skin center section, a second transition section, and a first transition section connected sequentially from the inside to the outside. Both the first and second transition sections are conical surfaces, with rounded corners at their intersection. The angle between the generatrix of the first transition section and the vertical direction is θ1, and the angle between the generatrix of the second transition section and the vertical direction is θ2, where θ1 > θ2. The two-stage transition section design of the forging surface of the skin structure effectively disperses stress concentration in the central area of ​​the die during forging, significantly reducing local stress at the contact point between the die punch and the blank. The stress value can be controlled below 320 MPa, avoiding punch deformation or damage; reducing fatigue damage to the die under high stress, extending die service life, and reducing production costs.

The application provides a mining roadway key layer regulation and thick layer bearing cooperative adaptation supporting method and system, and belongs to the technical field of coal mine roadway surrounding rock control and supporting. The method comprises the following steps: drilling a hole in a roof key layer, implanting a time-varying enhanced grouting material and a stress triggering weakening device, and constructing an interventionable large structure regulation layer; constructing an ultra-long anchor rod penetrating a disturbance zone and deep into a stable rock layer, and combining grouting reinforcement to form a thick layer bearing body; based on real-time monitoring of a multi-source sensor, dynamically identifying a mining load stage through data fusion; a small structure is adaptively switched to a support state according to stress changes; a large structure is strengthened in a low stress period or weakened in a high stress period according to a stage identification result; and the cooperative performance of the large structure and the small structure is quantitatively evaluated. The system comprises multi-source intelligent sensing, large structure active regulation and execution, small structure thick layer bearing construction, cooperative stage identification and decision control. The application can realize dynamic adaptation and cooperative control of the whole process of mining influence.

The invention relates to a dust-free high-performance thermal insulation board which comprises a three-layer structure: a layer A is a surface barrier film which is a composite film containing vinyl-terminated polydimethylsiloxane, fumed silica and polydimethylsiloxane and has excellent high temperature resistance and wear resistance; the layer B is a heat insulation core layer, is formed by compounding an aerogel matrix and ZrO2 particles, can effectively reduce the heat conductivity and enhance the radiation heat insulation capability, has a self-repairing function, and can recover the heat insulation performance when microcracks appear; and the layer C is a backing reinforced prefabricated body and is formed by compounding a fiber reinforced base material and a hot melting bonding component, so that the mechanical strength of the heat insulation plate is enhanced. According to the heat insulation plate, the three layers are tightly combined through a hot-pressing composite forming process, and the excellent heat insulation effect and long-time stability are ensured. The heat conductivity, the radiation isolation capability and the tensile strength of the material are superior to those of a traditional material, and good performance can be maintained in a high-temperature and high-stress environment.

The application discloses a resin-based composite material containing modified bamboo fibers, and raw materials of the composite material include epoxy resin, acetone, the modified bamboo fibers and ethylenediamine. The modified bamboo fibers are added into the epoxy resin to form the composite material according to the method, so that the mechanical properties of the composite material can be remarkably improved, the epoxy resin matrix material can be applied to occasions with high stress demand, and the application range of the epoxy resin material is improved.

The invention belongs to the technical field of wear-resistant cast steel and heat treatment thereof, and discloses high-hardness and high-toughness tempered sorbite wear-resistant cast steel and a preparation method and application thereof. The wear-resistant cast steel comprises the following chemical components in percentage by mass: 0.30 to 0.70 percent of C, 0.2 to 0.7 percent of Si, 0.4 to 1.2 percent of Mn, 2.0 to 3.4 percent of Cr, 0.4 to 1.0 percent of Ni, 0.5 to 1.0 percent of Mo, 0.05 to 0.2 percent of V, less than or equal to 0.035 percent of P, less than or equal to 0.040 percent of S and the balance of Fe and inevitable impurities. In addition, 2.8% < = (Cr + Mo + V) < = 3.8%. By optimizing alloy components and a heat treatment process, formation of ghost martensite is inhibited, and the obtained high-hardness and high-toughness tempered sorbite cast steel is particularly suitable for preparation of wear-resistant parts under the working condition of medium-high stress impact abrasive wear.

The invention relates to the technical field of fan impeller blade optimization, in particular to a wing type centrifugal fan impeller blade optimization method and system. The method comprises the steps that ventilator structure design is conducted on a draught fan according to user requirements, and a three-dimensional model of an impeller is obtained; obtaining impeller material parameters and operation condition parameters of the designed ventilator; establishing a finite element simulation model by utilizing finite element software according to the acquired parameters and the three-dimensional model; calculating the structural strength of the ventilator based on the finite element simulation model to obtain a finite element analysis result; and fan impeller blade optimization is carried out based on a finite element analysis result. A high-stress and large-deformation area, caused by insufficient supporting of reinforcing ribs, of the outer edge of the impeller is accurately positioned through finite element analysis, and blindness of traditional experience design is broken through.

The present application relates to the field of automobile body structure, and more particularly to an integrally formed middle and rear floor beam frame structure, comprising: a monolithic hot forming body, integrating a cross beam and a longitudinal beam, the cross beam comprising a middle cross beam and a rear cross beam, the longitudinal beam comprising a left longitudinal beam and a right longitudinal beam, and a round corner transition structure at the connection between the longitudinal beam and the cross beam; the monolithic hot forming body is made of a laser welding variable thickness sheet through an integrated hot stamping forming process, the variable thickness sheet comprising at least two regions with different thicknesses, a high stress region using a first thickness sheet, the high stress region comprising a longitudinal beam and cross beam intersection area, a subframe mounting point periphery, and a longitudinal beam bending transition section; a low stress region using a second thickness sheet smaller than the first thickness, the low stress region comprising a longitudinal beam middle non-load bearing section and a cross beam lateral extension section. It integrates multiple traditional parts into one core component, greatly reducing the number of molds, welding processes and assembly time, reducing cumulative errors, and improving production efficiency.

The utility model provides high-breathability waterproof Teflon cloth which comprises a Teflon cloth body, the front end of the Teflon cloth body is fixedly connected with a breathable waterproof layer, the breathable waterproof layer is made of aramid fiber materials, and the design solves the problems that in an original device, the Teflon cloth body is relatively soft, and under the condition of high stress or frequent friction, the Teflon cloth body is not prone to falling off. The teflon cloth body is worn or torn, the teflon cloth body can provide certain air permeability, but compared with natural fiber, the air permeability is still limited, a wearer may feel stuffy and moisture is not easy to discharge during high temperature or strenuous exercise, and the teflon cloth is reasonable in structure, good in practicability and convenient to use. When the Teflon cloth body is worn or torn, the breathable waterproof layer and the wear-resistant cloth can improve the pulling resistance and wear resistance of the tensile net, and the micropores in the surface of the tensile net can prevent liquid water from permeating, so that the Teflon cloth has a good breathable effect and also has a breathable effect.

The utility model belongs to the technical field of surrounding rock support, and provides a self-expansion spiral drilling and anchoring integrated anchor rod, which comprises a rod body, a spiral blade and an elastic sheet, the screw blade is wound outside the rod body in the direction of threads, the whole screw blade is conical, the thinner end of the screw blade faces the head of the rod body, and the thicker end of the screw blade faces the tail of the rod body; the elastic pieces are arranged in gaps between the spiral blades in the radial direction, and when the spiral blades are screwed in, the elastic pieces are extruded by surrounding rock to incline towards the tail end of the rod body. Compared with a traditional anchor rod, the pulling resistance of the anchor rod is higher, the anchoring performance is remarkably improved, the anchor rod is particularly suitable for high-stress creep strata of soft rocks, and long-term stable supporting can be guaranteed.

The application relates to the technical field of environmental treatment, and discloses a stress and gas composite disaster zoning and grading collaborative treatment method based on a risk matrix method. The stress and gas composite disaster zoning and grading collaborative treatment method based on the risk matrix method can realize real-time monitoring of stress evolution of a working face in a mining process by a stress monitoring system, automatically generate stress contour lines, and effectively divide low stress areas, medium stress areas and high stress areas. A gas geological visualization system can visualize gas occurrence conditions of the working face area, effectively improve the evaluation accuracy of the gas occurrence of the working face, accurately divide low gas areas, medium gas areas and high gas areas, and investigate effective drainage radii of different gas occurrence areas in combination with field conditions. On the basis of comprehensive analysis of the gas geological visualization system and the stress monitoring system, the risk matrix method is used for risk identification, risk judgment and risk evaluation of the working face area, low risk areas, medium risk areas, high risk areas and major risk areas are effectively divided, and different treatment measures are taken for different risk areas.