669results about How to "Improve reinforcement effect" patented technology

The invention belongs to the technical field of rubber preparation, and discloses a seawater-corrosion-resistant high-resilience low-compression-deformation modified ethylene propylene diene monomer rubber material as well as a preparation method and application thereof. The modified ethylene propylene diene monomer material comprises the following components: ethylene propylene diene monomer, a polyolefin elastomer, a filler, a processing aid, tackifying resin, an anti-aging agent, and at least one of an optional softening dispersant, a vulcanizing agent, an accelerant and a scorch retarder, the processing aid comprises zinc methacrylate; the accelerant comprises p-benzoquinone dioxime; and the anti-aging agent comprises 2, 6-di-tert-butyl-4-methylphenol. According to the invention, from the perspective of formula design, the high-temperature thermo-oxidative aging resistance, the hydrothermal thermal aging resistance and the compression permanent deformation resistance in a high-concentration seawater environment of the EPDM are improved in a targeted manner.

The bacillus pasteurii is preserved in the China Center for Type Culture Collection, and the preservation number of the bacillus pasteurii is CCTCC M 20241864; the urealyticum mutant strain with high urease activity is successfully screened by adopting a normal-pressure and room-temperature plasma technology, and the capability of inducing precipitation of calcium carbonate can be remarkably enhanced, so that the mineralization efficiency of microorganism-induced calcium carbonate deposition and the sandy soil reinforcement effect are improved; in addition, an improved bacterium-mediated microorganism-induced mineralization reaction kinetic model is established, and an improved process and method for reinforcing sandy soil through strains are provided according to the requirement for efficient control of ammonium emission. The research result of the invention has important scientific significance and wide application prospect for improving the practical application effect of the microbial soil reinforcement technology and improving the environmental problem caused by the byproduct waste ammonium solution.

The invention discloses a tunnel portal section edge and front slope miniature steel pipe pile-anchor rod support tunnel entering construction method, relates to the technical field of tunnel construction, and aims to prevent and support the edge and front slope instability condition at a tunnel portal, a large number of anchoring type support structures are applied, and miniature steel pipe piles are convenient to construct, simple in structure and flexible in arrangement; however, the miniature steel pipe piles in engineering are prone to bending shear damage. The invention provides a tunnel portal section edge and front slope miniature steel pipe pile-anchor rod support tunnel entering construction method. The method comprises the steps that miniature steel pipe piles are constructed, and a top beam is poured; cutting the side slope; along with step-by-step excavation of the side slope, a waist beam and an anchor rod are constructed; advanced large pipe shed construction; and pile breaking and full-section excavation are carried out. The pre-stressed anchor rods and the miniature steel pipe piles are stressed together to resist landslide thrust, the slope reinforcing effect is enhanced, passive stress is changed into active stress, the structural stress is more reasonable, the engineering difficulty of pile breaking and hole entering is reduced, meanwhile, hole opening ground surface settlement and surrounding rock deformation are reduced, and the supporting and retaining slope does not collapse.

The invention discloses a composite reinforcement type suction barrel device based on microorganism induction and a use method thereof. The composite reinforcement type suction barrel device based on microorganism induction comprises a suction barrel model system, a microorganism cement reinforcement system and a test monitoring system. The suction cylinder model system comprises a suction cylinder, a grouting pipeline and hydraulic equipment, and the grouting pipeline is laid on the inner wall of the suction cylinder and used for injecting microorganism cement grout; the hydraulic equipment is connected to the suction barrel and used for controlling lifting and pressing-in of the suction barrel. The microbial cement reinforcement system comprises liquid storage equipment and negative pressure equipment, and the liquid storage equipment is connected to the grouting pipeline and used for storing and providing microbial cement grout for the grouting pipeline; the negative pressure equipment is connected to the suction barrel and used for applying negative pressure to the interior of the suction barrel in the grouting process, and permeation of microorganism cement grout is promoted. The test monitoring system is used for testing mechanical parameters of a soil body, monitoring the suction barrel and carrying out a loading test on the suction barrel.

The invention relates to the technical field of resistivity method geophysical prospecting detection, and discloses a soil reinforcement effect detection device and method based on electrical resistance tomography. The technical problems that in the prior art, an electrode device is difficult to cover the whole pile body, so that an imaging result has certain limitation, and the electrode device is difficult to adapt to pile bodies of different sizes and shapes are solved. The device comprises a rotary spray irrigation pile, a high-pressure slurry pump and an air compressor, the rotary spray irrigation pile comprises a pipe wall and a grouting pipe, a plurality of electrodes are arranged on the outer side of the pipe wall at intervals, an electrode line channel is arranged on the inner side of the pipe wall, and the electrodes are connected through a wire penetrating through the electrode line channel to form an electrode measurement network. The device has the advantages that the reinforcing process of the rotary spray irrigation pile is monitored in real time, and the physical characteristics of foundation soil or a reinforcing body are accurately analyzed.

The utility model provides a prefabricated hanging plate for pouring type asphalt concrete, and relates to the technical field of reservoir danger removing and reinforcing engineering, the prefabricated hanging plate comprises a concrete plate and structural steel bars arranged on the concrete plate, the structural steel bars are arranged on the concrete plate, and the dam body connecting ends of the structural steel bars extend out of the concrete plate to be connected with a reservoir dam body; the concrete slabs are fixedly assembled through the structural steel bars so that casting gaps can be formed between the concrete slabs and the reservoir dam body, the multiple concrete slabs are fixedly assembled through the structural steel bars to form a wall plate matched with the upstream face of the reservoir dam body, the multiple casting gaps between the wall plate and the reservoir dam body form an asphalt concrete pouring area, and asphalt concrete is poured into the asphalt concrete pouring area. Therefore, construction procedures are reduced, construction efficiency is improved, and construction cost is saved. And the concrete prefabricated hanging plate and the poured asphalt concrete are combined into a whole, so that the anti-seepage and reinforcing effects are improved, and various objects in the reservoir are also prevented from directly damaging the asphalt concrete anti-seepage layer.

The invention provides a forming method of a combined profile structure. The forming method comprises the following steps that S1, primary rolling is conducted, specifically, a primary roller press gradually changes the section of a material belt into a circular tube shape through a pre-pressing roller and a plurality of sets of forming rollers; s2, external welding, wherein the two aligned side edges of the material belt are welded through a welding machine; s3, secondary rolling is conducted, specifically, a secondary rolling machine gradually rolls the section shape of the material belt from a circular tube shape to a flat square tube shape through a plurality of sets of shaping rollers and shape righting rollers; s5, cutting off: cutting off the material belt according to a preset length through a cutting machine; s6, laser welding is conducted, specifically, at least two strip-shaped reinforcing ribs are inserted into an inner hole of the cut-off material strip, the reinforcing ribs are arranged in parallel to the axial direction of the material strip, and the multiple reinforcing ribs are inserted into the flat square tubular structure at intervals in the left-right direction; and then the upper ends and the lower ends of the reinforcing ribs are welded to the upper side wall and the lower side wall of the flat square tubular structure correspondingly through a laser welding machine. The invention further provides a combined profile structure.

The invention relates to the field of coal mine roadway reinforcement, in particular to a mine dynamic pressure roadway buffering and reinforcing device. The invention provides a mine dynamic pressure roadway buffering and reinforcing device which can buffer impact generated by roadway strain when a roadway generates dynamic pressure, effectively prevent the phenomena of roadway top plate sinking and floor heaving, and protect normal use of the roadway. A mine dynamic pressure roadway buffering and reinforcing device comprises bottom plates, stand columns and the like, the bottom plates are left and right, the upper sides of the bottom plates are connected with a left set of stand columns and a right set of stand columns, and each set is composed of a front stand column and a rear stand column. The roadway top plate is supported and buffered through the top plate buffering mechanism, deformation and sinking of the roadway top plate under dynamic pressure are prevented, the roadway bottom plate is prevented from bulging under the dynamic pressure through the bottom heaving prevention and treatment mechanism, impact generated by roadway strain can be buffered when the roadway generates the dynamic pressure, and the roadway safety is improved. The phenomena of roadway roof sinking and floor heaving are effectively prevented, and the normal use effect of the roadway is protected.

The invention discloses a preparation method and application of a nano chitin lignin composite material, and relates to the technical field of rubber composites.The nano chitin lignin composite material comprises a rubber matrix, a reinforcing filler and a rubber nano chitin lignin compound, and the reinforcing filler is precipitated silica, carbon black and nano chitin lignin; the nano chitin lignin is a natural substance. Precipitated silicon dioxide, carbon black and nano chitin lignin are used as reinforcing filler, so that high compatibility of the nano chitin lignin and a sizing material matrix is realized, networking of the filler is reduced, energy consumed by irreversible deformation is reduced, and the service life of the sizing material is prolonged. The problems that rubber products are large in production pollution, obvious in heat generation, large in energy consumption and short in service life are solved.

The invention discloses a fully weathered granite stratum grouting parameter intelligent optimization method and system, and relates to the technical field of rock mass grouting. The invention discloses an intelligent optimization system for grouting parameters of a fully weathered granite stratum. The intelligent optimization system comprises an initial grouting parameter determination module and an intelligent grouting parameter optimization module, through cooperative work of the grouting reinforcement parameter pre-output model and the grouting reinforcement reaction effect prediction model, intelligent optimization of fully-weathered granite stratum grouting operation is achieved, the reaction influence features in the grouting process are accurately calculated through the steps of data preprocessing, parameter prediction, feature extraction, classified analysis and the like, and the grouting reinforcement effect prediction method is high in practicability. Grouting parameters are adjusted in real time, so that the grouting efficiency and the reinforcing effect are improved, and the safety and reliability of a project are ensured; and meanwhile, the time period of the grouting feedback parameter set X is determined through historical data optimization, and the accuracy and response speed of grouting operation are further improved.

The invention discloses a mold for core making equipment and a curing method and application of the mold, and belongs to the technical field of core making machine molds. The curing method comprises the following steps that sand shooting forming is conducted, specifically, in the mold closing state, molding sand is shot into a mold cavity from a sand shooting nozzle in a mold body to be used for forming a sand core; and heating and curing are conducted, specifically, a curing medium heated to be in a gaseous state is injected into the cavity through a plurality of air inlet channels, the curing medium makes contact with the peripheral side of the sand core and then is diffused and permeated, the sand core is cured from the periphery of the sand core, and the air inlet ends of the air inlet channels are separated from the sand shooting nozzles. According to the invention, molding sand injected into the mold can be quickly and uniformly attached to the surface of the loose core, and each part of the sand core can be quickly and uniformly cured in a short time, so that the curing speed of large pieces and high pieces is greatly increased, the curing effect and efficiency are improved, the compactness of the sand core can be improved through vibration, and the production efficiency is improved. And the product quality is further improved.

The utility model relates to the technical field of bridge reinforcement, in particular to a carbon fiber plate reinforcing structure, which effectively improves the reinforcing capacity of a carbon fiber plate and comprises the carbon fiber plate, a plurality of reinforcing devices are mounted at the bottom of the carbon fiber plate, and each reinforcing device comprises two connecting blocks and two sliding blocks. A mounting hole is formed in each connecting block, a bolt is mounted in each mounting hole, a plurality of connecting rods are arranged between the two connecting blocks, the sliding blocks are connected with the connecting rods in a sliding mode, a supporting bow is arranged between the tops of the two sliding blocks, a connecting shaft is arranged at the top of the supporting bow, and the sliding blocks are connected with the connecting rods in a sliding mode. The top of the connecting shaft is rotationally connected with a supporting block, the top of the supporting block is arranged in a plane mode, a gasket is arranged on the top of the supporting block, and the supporting bow is made of elastic materials and is arranged in a bent mode.

The invention relates to a method for reinforcing unearthed water-saturated decayed bone keratin cultural relics, in particular to a method for reinforcing unearthed water-saturated decayed bone keratin cultural relics by using three-dimensional net-shaped hydroxyapatite, which comprises the following steps: 1) dehydrating the bone keratin cultural relics in an environment with constant temperature and humidity; (2) adding a calcium source solution into the surface of the obtained dehydrated bone keratin cultural relic, and carrying out dehydration treatment in an environment with constant temperature and humidity; (3) a phosphorus source solution is added to the surface of the dehydrated bone keratin cultural relic obtained in the step (2), and dehydration treatment is conducted again in the environment with the constant temperature and humidity; and 4) repeating the steps 2) to 3) for multiple times. Compared with the prior art, the calcium source and the phosphorus source are used for reinforcing the bone keratin cultural relics, three-dimensional net-shaped hydroxyapatite is generated in cracks of the bone keratin cultural relics, the reinforcing effect is effectively improved, safe dehydration and reinforcing of the unearthed water-saturated rotten bone keratin cultural relics are achieved, and the risk that the cultural relics disintegrate due to excessive water loss or excessive water replenishing is avoided.

The utility model relates to the technical field of slope reinforcement, and discloses a slope reinforcement structure which comprises a foundation, a soil slope is arranged in the foundation, a connecting frame is fixedly connected in the foundation, a covering net is arranged on the upper surface of the soil slope, a fixing rod is connected in the covering net in a sliding mode, and the fixing rod is fixedly connected with the soil slope. The side wall of the fixing rod is slidably connected to the interior of the foundation, a pressing block is slidably connected to the interior of the covering net, the side wall of the pressing block is slidably connected to the interior of the connecting frame, a fixing frame is arranged on the upper surface of the covering net, a connecting assembly is arranged on the side wall of the fixing frame, and a fixing pin is in threaded connection to the interior of the fixing frame. According to the side slope reinforcing structure, the connecting frame, the covering net, the fixing rods, the pressing blocks, the fixing frame, the fixing pins and the clamping blocks are matched, the side slope reinforcing effect is achieved, the problem that the reinforcing effect is poor due to the fact that part of side slope reinforcing structures are single in structure is solved, and the reinforcing effect is improved through the structure.

The self-drilling type grouting anchor rod comprises a hollow anchor rod body, a two-way drilling bit is arranged on the hollow anchor rod body, a stop-grouting plug is arranged at the position, close to the upper end of the hollow anchor rod body, of the hollow anchor rod body, and a plurality of stop-grouting rings are arranged at the positions, between the two-way drilling bit and the stop-grouting plug, of the hollow anchor rod body at intervals; the grout stopping ring comprises a grout stopping ring steel inner core and bags symmetrically arranged on the grout stopping ring steel inner core, the bags are in a semi-ring shape, and grouting hoses are arranged on the bags and can penetrate through the grout stopping plug; the hollow anchor rod section between every two adjacent grout stopping rings and the hollow anchor rod section between the grout stopping ring located at the lowermost end and the two-way drilling bit are grouting sections, a plurality of grout outlet holes are evenly distributed in the grouting sections, and the outer sides of the grouting sections are further sleeved with grouting rubber sleeves; an electronic digital display angle gauge is arranged on the outer wall of the hollow anchor rod and located at the upper end of the grout stopping plug. The technical problems that grouting of a hollow grouting anchor rod in the sandy gravel stratum is diluted, diffused and difficult to solidify, and the anchor rod deviates and is poor in reinforcing effect can be effectively solved.

The invention relates to the technical field of carbon fiber materials, and discloses heat-resistant carbon fiber and a preparation method thereof.The heat-resistant carbon fiber comprises, by weight, 100 parts of polyurethane resin and 1-6 parts of modified carbon fiber; the surface of the modified carbon fiber is grafted with a hyperbranched polymer containing a carbamate structural unit, so that the compatibility between the carbon fiber and polyurethane is improved, the dispersity of the carbon fiber in the polyurethane is improved, and the carbon fiber and the hyperbranched polymer play a synergistic enhancement role; the tensile strength and the elongation at break of the polyurethane-based heat-resistant carbon fiber are improved. The modified carbon fiber grafted hyperbranched polymer contains a heat-resistant triazine functional group, so that the heat resistance, the limit oxygen index and the flame retardant property of polyurethane are improved.

The invention relates to anti-aging rubber and a preparation method thereof. The anti-aging rubber comprises the following raw materials in parts by weight: 60-90 parts of raw rubber A; the raw rubber A is nitrile rubber; 10-40 parts of raw rubber B; the raw rubber B is ethylene propylene diene monomer and / or ethylene propylene diene monomer; 90 to 120 parts of reinforcing filler; the reinforcing filler is a composition of carbon black and white carbon black; 5-8 parts of a rubber lubricant; 0.1 to 0.2 part of a coupling agent; 3-6 parts of a plasticizer; 5-8 parts of zinc oxide; 0.1 to 2.5 parts of sulfur; 1 to 2 parts of peroxide DCP; 1-3 parts of an accelerant; 1-3 parts of stearic acid; and 2-5 parts of an anti-aging agent. According to the aging-resistant rubber and the preparation method thereof, the design is reasonable, a raw rubber system provides basic performance of rubber, a reinforcing system enhances mechanical properties of the rubber, a vulcanization system ensures a cross-linked structure of the rubber, multiple auxiliaries enhance processability, stability and aging resistance of the rubber, and the aging-resistant rubber with good comprehensive performance is obtained.

The invention belongs to the technical field of geotechnical engineering and ocean engineering, and particularly relates to an island ecological bank slope structure and process based on biomimetic mineralization and microorganism self-repairing. The biomimetic mineralization calcareous sand reinforcing layer is prepared by spraying a biomimetic mineralization liquid A and a biomimetic mineralization liquid B onto calcareous sand to mineralize the calcareous sand; the ecological self-repairing calcareous sand concrete layer comprises calcareous sand, cement, fly ash, broken stone, seawater, an additive, microbial self-repairing particles and marine plant grass seeds; and a pebble layer. The invention further discloses a construction process of the island ecological bank slope structure based on biomimetic mineralization and microbial self-repairing. The reinforcing effect is good, the influence on the environment is small, meanwhile, the concrete crack self-repairing function is achieved, and the service life of the bank slope structure can be prolonged.

The invention provides high-strength wear-resistant ultralow-rolling-resistance conveyor belt cover rubber and a preparation method thereof, and relates to the technical field of conveyor belts, the cover rubber comprises the following components by weight: 40-80 parts of natural rubber, 20-60 parts of synthetic rubber, 40-80 parts of a hybrid reinforcing material, 1-2 parts of sulfur, 1-5 parts of zinc oxide, 1-3 parts of stearic acid, 1-8 parts of an accelerator, and 1-5 parts of an anti-aging agent. According to the high-strength wear-resistant ultralow-rolling-resistance conveyor belt cover rubber and the preparation method thereof, the high-structure carbon black N339 and the nano silicon dioxide are hybridized, so that ion covalent bonds are formed between the high-structure carbon black N339 and the nano silicon dioxide, the N339 and the nano silicon dioxide are uniformly dispersed, the structure is stable, and the nano silicon dioxide can be uniformly dispersed without a traditional coupling agent; the N339 and the nano silicon dioxide are subjected to hybridization treatment, so that the structure is more stable, the RRF coefficient of the sizing material is reduced, and the reinforcing effect is improved.

The invention provides a recycling method for waste tire pyrolysis residues. The recycling method comprises the following steps: S1, firstly carrying out wire drawing on waste tires; s2, the waste tires obtained after wire drawing are put into a crushing unit to be crushed; s3, the crushed waste tires are added into a pyrolysis processor; s4, carrying out water cooling on solid slag generated by pyrolysis of the old tire to obtain a primary carbon black material; s5, mixing the black primary material and a desulfurizing agent according to the mass; s6, washing: adding the crude carbon black into a granulating agent, and washing in a washing solution; s7, granulation: conveying the carbon black slurry into a granulator through a screw conveyor, extruding, forming and discharging; and S8, drying and discharging. S9, compounding the dried and discharged carbon black with water, a water reducing agent and cement; and S10, vibrating, stirring and forming.

The utility model provides a temporary supporting device for connecting channel duct piece reinforcement, which comprises a support, the support comprises an arc-shaped supporting piece, a bearing unit is arranged below the arc-shaped supporting piece, and a plurality of screw jacks are arranged in the arc-shaped supporting piece; the top of the vertical supporting piece is connected with the arc-shaped supporting piece, and the bottom of the vertical supporting piece is connected with the bearing unit; one end of the transverse supporting piece is connected with the vertical supporting piece, and the other end of the transverse supporting piece is connected with the arc-shaped supporting piece. The vertical supporting pieces are arranged on the bearing units, the arc-shaped supporting pieces are fixed to the duct pieces through the vertical supporting pieces and the transverse supporting pieces, a track laying construction space and a track laying machine passing space are formed, and prestress is applied to the supports through the screw jacks arranged on the arc-shaped supporting pieces; according to the construction method, it is guaranteed that the duct pieces do not deform in the surrounding soil freezing and unfreezing process in freezing method construction, track laying construction and operation are guaranteed, meanwhile, a system formed by the support can also be used for duct piece holing, reinforcing and supporting, and the overall structure is simple.

The present invention relates to the field of slope reinforcement technology, specifically to a rapid construction method for mudstone interlayer slope protection and reinforcement technology, which solves the problems that the existing reinforcement efficiency of slopes with mudstone interlayers through on-site concrete pouring is low, and it cannot meet the rapid reinforcement of different slopes. When the water content of the slope soil is too high, it is not convenient to maintain soil stability, which easily causes slope collapse and other problems. A mudstone interlayer slope protection and reinforcement device includes a slope body, an X-direction reinforcement mechanism and a Z-direction tensioning mechanism. A plurality of Y-direction reinforcement mechanisms are installed on one side of the slope body, and a drainage ditch is provided on the side of the bottom of the slope body. The present invention can effectively improve the slope solidification effect and construction efficiency by using an assembled method to segment and anchor the slope, and is convenient for active drainage of the slope soil to avoid slope collapse caused by excessive water content.

The invention relates to the technical field of carbon black preparation, and particularly discloses a regenerated carbon black reinforcing agent and a preparation method thereof, the regenerated carbon black reinforcing agent comprises the following raw materials by weight: 10-50 parts of a vulcanization accelerator, 2.5-12 parts of stearic acid, 2-10 parts of tackifying resin, 0.5-3 parts of modified nano zinc oxide, 0.2-2 parts of calcium sulfate whisker, 0.2-2 parts of white carbon black, 4-18 parts of carbon black and 1-5 parts of a modified silane coupling agent. The regenerated carbon black reinforcing agent provided by the invention is a high-performance modifier, when the regenerated carbon black reinforcing agent is used for modification treatment of the cracked carbon residues, the reinforcing performance of the cracked carbon residues can be efficiently improved, the 300% tensile strength and the tensile strength can meet the standards of reinforcing agents, and the regenerated carbon black reinforcing agent can replace part of commercial carbon black to be used as a reinforcing agent and has a relatively high application prospect.

The present invention discloses an arch foot reinforcement structure and construction method for a subway station with an arch cover method. The arch foot reinforcement structure includes two layers of arch cover support, arch foot piles arranged at the arch feet on the left and right sides of the main body of the subway station arch cover, and an arch foot longitudinal beam connected to the arch foot piles. The arch foot piles are arranged along the tangent of the arch foot. The arch foot piles are composed of a steel frame and fine stone concrete poured into the steel frame and the pile hole. The present invention is a reinforcement system combining the arch foot piles with the longitudinal beams. The arch foot piles and the first and second layers of the arch cover support are connected by the longitudinal beams. The structure has good integrity and strong resistance to local stress and deformation. It can effectively reinforce and protect the deep and broken surrounding rock at the arch foot. In addition, the construction method of the arch foot reinforcement structure provided by the present invention has flexible selection of reinforcement scope and implementation object, which is aimed at the broken rock layer of the arch foot of the supporting arch cover, and will not have an overall impact, nor will it affect the advantages of the arch cover method in terms of project cost, construction period, implementation efficiency, mechanized operation, etc.

The present invention relates to the technical field of milling cutter processing equipment, and specifically to a telescopic adjustable T-type milling cutter and its fixing assembly, including a main shaft, a threaded column is installed on the bottom wall of the main shaft, a plurality of secondary limit grooves are opened at the bottom of the threaded column, a tool end reinforcement unit for reinforcing the tool handle port is provided at the bottom of the main shaft, and a tool middle reinforcement unit for reinforcing the middle part of the tool handle is provided at the bottom of the tool end reinforcement unit for reinforcing the middle part of the tool handle. The present invention realizes the rotational movement between the inner ring gear plate, the long column gear and the gear rack by setting the torsion between the bolt-type turntable and the threaded column, thereby realizing the purpose of reinforcing tool handle parts of different diameters, and also realizing the installation or disassembly between the threaded column and the bolt-type turntable. Compared with the existing method of clamping the milling cutter rod by an elastic chuck tube, the present invention is more convenient and stable, and the present invention further improves the reinforcement effect of the tool handle part by double pressing the upper section of the tool handle by the arc pressing part and the limit pressing part.

The invention discloses an ancient building brick wall reinforcing method based on three-dimensional scanning and data analysis, and particularly relates to the technical field of brick wall reinforcing. The internal structure of the brick wall is monitored through multi-frequency laser excitation, the interference degree of a heterogeneous repairing material on the integrity of a scanning signal is evaluated, and the influence of refraction and scattering of an optical signal on three-dimensional point cloud data is further analyzed. By constructing a local characteristic curve, the obstruction degree of the nonlinear optical effect on brick damage identification is evaluated. By analyzing the generalized spectral characteristics of the local characteristic curve and combining the refractive index of the repairing material and the energy conduction characteristics of the surface structure of the brick body, the error amplitude of the interface scattering anomaly on the measurement of the brick joint depth and the crack range is evaluated. And comprehensively analyzing the hindering degree of the nonlinear optical effect and the error amplitude of the interface scattering abnormity, evaluating the suitability of the brick body and the repairing material, and formulating a targeted reinforcing strategy to ensure the effectiveness and long-term stability of the reinforcing effect.

The invention relates to the technical field of building reinforcement, in particular to a building reinforcement structure which comprises a positioning component, a metal net, a concrete injection molding layer and a pouring mold, a building column is arranged on the inner side of the positioning component, a carbon fiber hanging net is arranged on the outer side of the building column, and the positioning component comprises a positioning frame. The pouring mold comprises a positioning frame, a fixing screw rod is arranged at the outer end of the positioning frame, fixing nuts are installed at the two ends of the fixing screw rod, the pouring mold comprises a mold plate, a clamping frame is arranged on the outer side of the mold plate, and a clamping block is arranged on the inner side of the clamping frame. The outer side of the building column body is wrapped with the carbon fiber hanging net, the firmness of adhesion of the reinforcing structure and the upper mounting face of the building column body is improved, the concrete injection molding layer is supported through the positioning component and the metal net, the supporting force of the concrete injection molding layer is improved, formworks are connected through the clamping and fixing frame and the clamping blocks, and the convenience of formwork assembly and disassembly is improved.

The invention belongs to the field of medical rubber materials, and particularly relates to a vulcanization preparation process of a medical puncture-resistant rubber gasket. A vulcanization preparation process of a medical puncture-resistant rubber gasket comprises the following steps: S1, raw rubber raw material preparation: crushing and mixing raw rubber raw materials to be vulcanized into raw rubber powder, removing impurities, and sieving; the raw rubber raw materials comprise halogenated butyl rubber, polyisoprene rubber and epichlorohydrin rubber; s2, preparing a rubber compound; the preparation method comprises the following steps: preheating an internal mixer to 80-100 DEG C, adding 80-90 parts by weight of raw rubber powder into the internal mixer, and refining at 115-125 DEG C for 5-9 minutes; adding 12-22 parts by weight of a modified composite filler, 2-6 parts by weight of zinc oxide, 1-3 parts by weight of stearic acid, 3-8 parts by weight of a crosslinking auxiliary agent and 0.5-1.2 parts by weight of an anti-aging agent, and mixing for 18-22 min; s3, calendaring and sheet discharging: calendaring and molding the rubber compound obtained in the step (2) to obtain a rubber compound sheet; s4, prevulcanization: putting the rubber compound sheet calendered in the step (3) into a mold cavity of a press vulcanizer, and carrying out under-vulcanization production to obtain a preformed sheet; the preformed rubber sheet in the step (4) and an organic solvent are subjected to cleaning treatment and drying and then put into a vulcanization mold to be subjected to vulcanization forming, the rubber gasket is obtained, the vulcanization temperature ranges from 140 DEG C to 150 DEG C, and the vulcanization time ranges from 3 min to 7 min. In order to solve the problem that the use performance of a medical rubber gasket is affected due to the fact that the medical rubber gasket is needled to fall scraps and is poor in rebound resilience, the invention provides the vulcanization preparation process of the medical needling-resistant rubber gasket.

The present invention discloses a low-viscosity and high-strength cement-based grouting material and a preparation method thereof. The grouting material comprises the following components: 300-600 parts of a cementitious material having volcanic ash properties, 0.2-0.6 parts of a micro-nano coagulant, a water reducer of 0.25-2% of the mass of the cementitious material, and a water-cement ratio of 0.4-0.8. The cementitious material having volcanic ash properties comprises silicate cement and modified microbeads. The preparation method comprises the following steps: uniformly mixing the cementitious material having volcanic ash properties and the micro-nano coagulant. Then, a mixed solution formed by the water reducer and water is added, and the mixture is uniformly stirred to obtain the cement-based grouting material. The present invention reduces the water-cement ratio of cement slurry and ensures the strength of cement stone, while reducing the viscosity of cement slurry and improving injectability.