962results about How to "Reduce post-maintenance costs" patented technology

The invention provides a customizable query method and a platform on the basis of service composition. The method comprises: describing own demands to the platform by a user through an appointed client end visible component and through operations of selecting and filling the attribute value of the component, analyzing the initial state and the target state of a data query request, then, searching and combining a corresponding basic service calling sequence, then, executing basic services in the sequence, thereby obtaining a result set which contains user expected result data, and generating a final result to display to the user through screening, sequencing and assembling. In the method, the user describes own demands to a system actively, the system can effectively adapt different individualized demands of different users through receiving user description and dynamic analysis processing, the application system development work load and the later maintenance cost are lowered, and the friendliness of a data query application system is improved, which enables the user to customize data query actively and enables inquiry to be flexible and convenient.

The invention relates to an internal concrete curing compound and manufacturing method thereof. The ingredients include de-ionized water, non-metallic minerals, sodium hydroxide, acrylic acid and / or derivative monomer, water-soluble initiators of free radical polymerization, water-soluble cross-linker of free radical polymerization and addictive. The preparing method for the internal curing compound of solution-type concrete is characterized in that the following procedures are applied: 1) preparation of raw materials; 2) mixing of de-ionized water, sodium hydroxide, acrylic acid and / or derivative monomer; 3) the mixed solution is added and mixed with and in order of cross-linker, initiator, non-metallic minerals, epoxy ethane, rust retardant agent; the internal concrete curing compound can be obtained following a homogeneous mixing and heating with recycled hot air. The invention can save curing water, reduce manpower / material input, minimize addictive cost, effectively control water evaporation, reduce the cost for late concrete curing and enhance the comprehensive performance of concrete addictives, which proves to be environment friendly with respect to environmental impact.

The invention relates to the technical field of network security and provides a VPN secure access method, a system and a VPN client thereof; wherein, the VPN secure access method comprises the steps as follows: the VPN client, which employs a hardware Key, sends an access request to the network; the access request is signed and encrypted by the hardware Key; the network carries out identity authentication on the VPN client after receiving the access request and establishes a safe passage with the VPN client after the identity authentication is passed; and the VPN client carries out safety service interaction with the network by the hardware Key and the safe passage. The invention integrates secure access, identity authentication for clients with high intensity and a timing and charging module seamlessly, and provides a whole secure access proposal, thus reducing the difficulty of system distribution and operation maintenance while guaranteeing the network safety, and facilitating the use for clients.

The invention relates to a production method for an environment-friendly soilless lawn carpet, which mainly comprises the following steps: laying a waterproof layer, nonwoven fabric, a wadding fiber layer and a nutrition substrate layer in sequence; seeding grass seeds, coating with the nonwoven fabric and then laying vermiculite or zeolite particles; and finally periodically watering and fertilizing during the incubation period. The lawn carpet produced by the invention has short lawn forming time, labor conservation, low labor intensity, low management cost, high lawn purity, no weed, complete root system, good grass quality, uniform thickness, easy survival after transplantation, convenient management, and reeling and cutting property, and overcomes the defects of the prior lawn such as bad applicability and easy rupture. The produced lawn carpet has the advantages of long green period, fresh and green color, strong resistance, light mass, degradability, convenient maintenance convenient transportation and the like, and can be widely applied to the afforestation or the decoration of public places, airports, office buildings, residential building roofs and the like.

The present invention discloses an AGV positioning system and method for fusing a 2D environmental map and a sparse artificial landmark. The system comprises a vehicle-mounted device, an artificial landmark, and a 2D environmental map. The 2D environmental map is established by the vehicle-mounted device according to a current environment. The artificial landmark comprises position information andnumber information. Each artificial landmark is uniquely numbered in the environmental map. The vehicle-mounted device comprises a laser radar, a milemeter, a gyroscope, and a positioning unit. The positioning unit comprises a laser data processing module, a sensor data storage module, a point cloud matching graph construction module, an environment positioning module, an artificial landmark positioning module, and a positioning result fusing module. The point cloud matching graph construction module is used for graph construction. After the 2D environmental map is obtained, the environment positioning module and the artificial landmark positioning module are used for obtaining a positioning result. Finally, the positioning result fusing module is used for fusing positioning results and providing final positioning information, so that high-precision positioning of an AGV car in environment is implemented.

The invention relates to water retaining slow-release light nutrient soil for roof greening. The nutrient soil comprises the following raw materials in percent by weight: 10 to 30 percent of peat soil, 5 to 15 percent of foundation aggregate, 5 to 15 percent of cinder ash and desulphurization gypsum powder combined material, 10 to 40 percent of functional matrix, 10 to 30 percent of rotten organic fertilizer, 0 to 10 percent of oilseed residue, 1 to 10 percent of microorganism fertilizer, 10 to 30 percent of inorganic adsorbent, 10 to 30 percent of inorganic mineral powder, 5 to 10 percent of an antiseptic insecticide, 1 to 10 percent of beneficial microorganism combined powder, and 0 to 10 percent of a pH (potential of hydrogen) adjuster. The nutrient soil is easy to get in raw materials and low in cots, can retain water for a long time and slowly release fertility, is stable in physical and chemical properties, realizes ecological self-circulation, is durable for a long time and particularly applied to application of organic planting and greening on roofs of cities and towns.

A polyurethane is obtained by continuously reacting a polyurethane prepolymer in an asphalt or asphalt mixture material system under high temperature. The prepolymer is prepared by: adding a polymerization inhibitor, catalyst and isocyanate component in a reaction container, adding a polyol to the reactor while stirring at room temperature under nitrogen, increasing the temperature to 50-80° C., and maintaining the temperature to react for 0.5-6 hours. A polyurethane modified asphalt, a mixture material containing the polyurethane and a polyurethane modified asphalt pavement structure can be prepared. The synthesis condition of the polyurethane is mild, and a secondary reaction with the air and an active hydrogen component in the asphalt can occur during maintenance and formation to further increase the strength of a mixture material. The standard Marshall stability at 60° C. meets the petroleum asphalt requirement, such that a service life of the asphalt pavement can be increased.

Flexible expansion reduced ecological slope protection construction effectively solves the technical problem of expansion soil or expansion rock in road cut slope protection, ensures that the road slope protective structure has the good short-term and long-term protective effect, and is beneficial to reducing the project investment of slope protection. The flexible expansion reduced ecological slope protection construction comprises an ecological slope protection face, a filling or refilling soil layer, foundations, a drainage system and a waterproof system. The filling or refilling soil layer is formed to be a flexible reinforced body by layered filling and layered compacting non-expansion soil or weak-middle-expansion soil and a geogrid paved in the expansion soil in layers. The ecological slope protection face is formed by ecology bags which are paved on the top surface and outside face of the filling or refilling soil layer. Slope covering soil is paved outside the ecological slope protection face. Green plants are planted on the slope covering soil.

The invention discloses an automatic endurance charging pile for a rotor wing unmanned aerial vehicle and an automatic endurance method therefor. The charging pile comprises a square base, wherein a wireless charging apparatus is arranged in the center of the square base; a two-dimensional code scanning gun and a signal transmitter are arranged on each of four corners separately; triangular cover plates are arranged on the four edges; and a power supply and a controller for controlling the equipment are arranged in the base. According to the automatic endurance method, when the unmanned aerial vehicle detects that the electric quantity is insufficient, a nearest charging pile is searched; the charging pile performs two-dimensional code recognition on the unmanned aerial vehicle, and the cover plates are opened after successful recognition; then the unmanned aerial vehicle lands above the square base, and is charged by the charging pile, and meanwhile, the cover plates are closed to protect the unmanned aerial vehicle; and when the unmanned aerial vehicle is fully charged or when the charging quantity of the unmanned aerial vehicle satisfies the residual flight task requirement, the charging process is stopped, the cover plates are opened, the unmanned aerial vehicle can continuously perform the residual task, and then the cover plates are closed. By adoption of the automatic endurance charging pile and the automatic endurance method, the unmanned aerial vehicle can automatically finds the charging pile to be charged in low electric quantity, so that the endurance of the unmanned aerial vehicle is greatly prolonged.

The invention discloses a detachable dustproof screen assembly which comprises a dustproof screen support and a dustproof screen. A screen hole is formed in the dustproof screen support. The area of the screen hole is smaller than that of the dustproof screen. The dustproof screen covers the screen hole and is fixedly connected with the periphery of the screen hole. As the dustproof screen and a shell of an electronic device are detachably connected, a user can replace the dustproof screen or disassemble the dustproof screen, clean the dustproof screen completely and then assembles the dustproof screen to the electronic device at regular intervals, the product quality is improved, and the maintenance cost is reduced. The invention discloses an electronic device adopting the detachable dustproof screen assembly.

The invention discloses a tension-leg offshore floating wind turbine foundation capable of floating and being installed by self and an installation method thereof. The tension-leg offshore floating wind turbine foundation comprises three rectangular floating boxes on a same horizontal plane and of which any two are at an included angle of 120 degrees, a center floating box connecting the three rectangular floating boxes, a center pillar connected with the upper end of the center floating box and used for supporting a wind turbine tower, three peripheral pillars which are in a one-to-one connection with the three rectangular floating boxes and separated from each other, three cantilever beams respectively and correspondingly arranged at the top of the three peripheral pillars and extending outwardly, a heave plate connected to the bottom of the three rectangular floating boxes and the center pillar, transverse braces and diagonal braces for connecting the center pillar and the peripheral pillars, a subsea base part and tension legs for connecting the cantilever beams and the subsea base part. The tension-leg offshore floating wind turbine foundation capable of floating and being installed by self according to an embodiment of the invention has the advantages of low cost for later maintenance, convenient installation and low installation cost.

The invention relates to a bogie for a straddle type monorail transport vehicle, in particular to a backbone type double-axle power bogie for a straddle type monorail vehicle. The backbone type double-axle power bogie comprises a central traction device mounting beam, wherein a backbone integrated with the central traction device mounting beam is arranged at the middle part of the central traction device mounting beam; two guide wheel mounting beams integrated with the backbone are respectively arranged at the two ends of the backbone; two steady wheel support arms integrated with the central traction device mounting beam are respectively arranged at the two ends of the central traction device mounting beam; guide wheel support arms integrated with the guide wheel mounting beams are respectively arranged at the two ends of the guide wheel mounting beams; the central traction device mounting beam is integrated with the backbone and the two guide wheel mounting beams, so that a backbone type bogie body is formed. The backbone type double-axle power bogie for the straddle type monorail vehicle is compact in structure, reduces the overall volume, reduces the vertical vehicle through cross section, lightens the overall weight, is uniform in load during operation, reduces the wear probability of travelling wheels during operation, prolongs the service lives of the travelling wheels, improves the safety in operation, and lowers the later maintenance cost and operating cost.

The invention discloses a reciprocating-type feeding mechanism. The reciprocating-type feeding mechanism comprises a partition plate, a supporting plate, a pushing plate, a forward-pushing half-gear assembly and a backward-pulling half-gear assembly, the pushing plate and one end of a pushing rack are connected and fixed, and clamping teeth are arranged on the two sides of the pushing rack correspondingly; the pushing rack and a half gear of the forward-pushing half-gear assembly are assembled in an engaged mode through the clamping teeth on one side; the forward-pushing half-gear assembly further comprises a connecting ring and a connecting shaft, the connecting ring is fixed to the half gear, and the connecting ring and one end of the connecting shaft are assembled and fixed; the other end of the connecting shaft penetrates through the partition plate to be assembled with a driven gear; the driven gear is engaged with a driving gear; the driving gear is installed on a driving shaft,and the driving shaft is connected with an output shaft of a driving motor; and the backward-pulling half-gear assembly is the same as the forward-pushing half-gear assembly in structure, a driven gear of the backward-pulling half-gear assembly and the driven gear of the forward-pushing half-gear assembly are both engaged with the driving gear. The workpiece pushing interval time is uniform and stable, the reciprocating-type feeding mechanism can adapt to the worse use environment, and the use and maintenance costs are saved.

The invention provides a definition of a universal service data acquisition form and a generation method thereof. In the method, a format of a database storage service data form is used, a front end is displayed by a script processing interface, data are transmitted to a web server by XML for storing data, and the service data are subject to data verification and processing by a definable database storage process. The method has the functions and beneficial effects of rapidly developing data acquisition document for particular users; flexibly adjusting and randomly expanding the original system document, reducing the development cost, execution cost, user application cost and the subsequent maintenance cost. The existing service system can be subject to high-level expansion by the storage process of the database and a JavaScript.

The invention relates to a bridge widening splicing structure and a construction method thereof. The present invention adopts the design principle of "connecting at the top and not connecting at the bottom", that is, the wet joint of cast-in-situ concrete is realized between the upper hollow slabs of the new and old bridges, the bridge deck is continuous, and the lower piers and foundations are no longer connected, and they are relatively independently stressed. To adapt to the differential settlement between the new and old bridges; the outer side plate of the old bridge is replaced, and the pier cover beam is not removed, only the anti-collision guardrail of the old bridge is removed. After the old bridge plate is replaced, the plate is replaced next to the old bridge The edge of the rear beam slab is connected with the beam slab of the new bridge by planting bars, so that the old and new bridges form a solid whole. The inventive method combines many advantages such as simple construction, short construction period, low construction cost, new and old bridges are formed into a whole to bear the force together, etc. The hollow slabs can be replaced by centralized prefabrication and factory construction, and are suitable for highway bridges of all grades. Wide construction, in line with the requirements of building energy saving, building a resource-saving, environment-friendly society, after promotion, it has good economic benefits and social value.

The invention discloses a construction method for a terrace. The method includes the following steps that firstly, a ground basic layer is cleared, and multiple hydrophobic boards are flat laid on thecleared ground basic layer; then, a terrace formwork is erected, and ash cakes are arranged on the hydrophobic boards; then through a sequence method, concrete is poured on a pouring region; steel reinforcement net pieces are laid on the upper surface of concrete and settled to designated positions; then, the operation of polishing, maintaining, form stripping and expansion joint cutting is performed, and finally the concrete is maintained until the setting strength of the concrete meets designing requirements. With the construction method for the terrace, the terrace can be effectively prevented from cracking and peeling; the tenacity and mechanical strength of the terrace are good; the maintaining cost in the late period can be effectively lowered, and the service life of the terrace can be effectively guaranteed; construction is convenient, and construction efficiency is improved.

The invention discloses a page display method and apparatus, and belongs to the technical field of Internet live broadcast. The method comprises the following steps: obtaining attribute information of a direct broadcasting room in response to an operation of entering the direct broadcasting room; extracting a display template configured to the direct broadcasting room with the attribute information from a configuration file; and constructing a page used for displaying the direct broadcasting room according to the display template. By adoption of the page display method and apparatus disclosed by the embodiment of the invention, the page design and update efficiency can be effectively improved, and the subsequent maintenance cost of the page design of the direct broadcasting room can also be effectively reduced.

The invention provides a treatment method of catalytic cracking flue gas desulfurization wastewater. The treatment method comprises the following steps: fully utilizing waste heat of high-temperature flue gas, concentrating circulation slurry in a washing tower, and controlling the concentration of the circulation slurry, thus ensuring normal operating of a desulfurization system; meanwhile, carrying out pretreatment (flocculating, filtering, removing calcium and magnesium ions, reducing COD (Chemical Oxygen Demand) through oxidization and the like) on concentrated discharged wastewater, enabling the wastewater to meet the feeding requirements of a concentration system, and then carrying out evaporation and crystallization (multi-effect evaporation or MVR (Mechanical Vapor Recompression)), thus realizing zero emission of salt-containing wastewater and recycling of inorganic salt. According to the technology, a sodium alkaline flue gas desulfurization technology and an inorganic salt evaporative crystallization recovery technology are organically integrated, the problems of membrane pollution and membrane scaling during a membrane concentration process, large investment, high energy consumption and the like are avoided, the emission problem of salt-containing wastewater in an alkaline washing technology is completely solved, and zero emission is really realized; meanwhile, separated crystallization is carried out on inorganic sodium salt products, the recycled products are used as products, the problems of mixed salt and hazard waste are solved, and secondary pollution is removed.

The invention discloses an AGV composite navigation system and method integrating an electronic map, a two-dimensional code and a colored tape. The system comprises a car-mounted device, an electronicmap and a colored tape; the colored tape is provided with a two-dimensional code site comprising at least two two-dimensional codes; each two-dimensional code site has an exclusive number and corresponds to the electronic map; the car-mounted device comprises a camera and a control unit; the control unit comprises a two-dimensional code site image decoding module, a decision module, a straight path tracking control module, an arc path tracking control module and a fixed point rotation movement module; the decision module selects a next path according to a site number and an AGV azimuth angleacquired by the two-dimensional code site image decoding module, obtains a type of the next path from the electronic map, and switches the straight path tracking control module, the arc path trackingcontrol module and the fixed point rotation movement module to respectively perform the straight movement, the arc movement and the fixed point rotation movement, so that the autokinetic movement of an AGV cart from any site to another site of a car-mounted electronic map.

The invention discloses an ecological negative ion machine with active air purification and pollutant collection functions. The ecological negative ion machine with active air purification and pollutant collection functions comprises a shell, a double-circuit control circuit, a negative ion generator, a negative ion releaser, a positive potential generator and a positive potential pollutant collector, wherein the double-circuit control circuit, the negative ion generator, the negative ion releaser and the positive potential generator are arranged in the shell; the positive potential pollutant collector is arranged outside the shell; the double-circuit control circuit is electrically connected with the negative ion generator and the positive potential generator respectively; the negative ion releaser is electrically connected with the negative ion generator; the positive potential pollutant collector is electrically connected with the positive potential generator. By virtue of alternate generation of the positive potential and the negative irons, the negative ions are diffused in a far distance to combine with air pollutants rather than being limited by the positive potential, then are adsorbed and collected by the positive potential pollutant collector, and then are cycled continuously in relatively big space to form an air particle negative-pressure cavity, so that purification range is not only enlarged, but a negative ion recuperating bath is formed in the room. The ecological negative ion machine not only has sterilization and air purification functions, but also can efficiently isolate dust particles carrying with positive electricity from being released to space secondarily.

The invention discloses a novel spiral drilling rig structure. The novel spiral drilling rig structure mainly comprises a by-pass valve assembly (1), a motor assembly (2), a universal shaft assembly (3) and a transmission shaft assembly (4) which are connected sequentially. The novel spiral drilling rig structure is simple and low in manufacturing cost and later maintenance cost, improves the drilling efficiency, shortens the drilling period, reduces the drilling cost, and has very obvious economic significance.

The invention relates to the field of electric digital data processing, and in particular relates to a generating method and system of a three-dimensional simulation training case of a power grid substation. The generating method comprises the following steps of: generating the training case including a initial substation state and an operation step list; updating the initial substation state of the training case according to a received initial user substation state; generating a three-dimensional simulation scene, receiving a plurality of user operation steps in sequence, and updating the operation step list of the training case according to the received user operation steps; and storing the updated training case into the three-dimensional simulation training system. By utilizing the generating method of the three-dimensional simulation training case of the power grid substation, according to the requirements of the training case, a training case is established, case data of a teaching plan are automatically generated through state setting and demonstration operation in a three-dimensional simulation system of the substation, procedures of three-dimensional animation production, manual file edition and configuration or training system modification are not required, and the working amount during the generation of the cases is effectively reduced.

The invention discloses a parking space detection method for an autonomous vehicle, which comprises the steps of firstly establishing a parking scene local point cloud map, then screening a parking available area, extracting ground point cloud in the parking available area, converting the ground point cloud into an intensity picture, then operating a parking space mark line detection algorithm inthe intensity picture, and finally calculating and outputting relative coordinates of a parking space relative to a vehicle body. The parking space detection method of the invention has the beneficialeffects that: the parking space detection method is not influenced by the change of illumination conditions, and can still work normally under the condition of weak light; the whole algorithm has small computation amount, can run on an ARM processor with low power consumption and low cost in real time, and the whole system has low cost; meanwhile, reflection intensity information in laser radar data is adopted to detect a parking space mark line, and the output parking space coordinates are based on the parking space mark line in a three-dimensional point cloud space, accuracy and stability are achieved.

The invention relates to a software development platform for an embedded industrial control instrument. The software development platform comprises a hardware driving layer, a system platform scheduling layer, a product application layer and a product customization layer, wherein the hardware driving layer and the system platform scheduling layer form a platform core layer; the product application layer and the product customization layer form a product layer; the hardware driving layer comprises driving codes of correlated hardware modules of the industrial control instrument; the system platform scheduling layer comprises codes of basic scheduling and managing functions of an embedded operation system and codes of basic processing functions of the industrial control instrument; the product application layer comprises related common codes of varied products of the industrial control instrument; the product customization layer comprises various customization codes for different specific products; and codes of the hardware driving layer and the system platform scheduling layer are compiled and packaged to form an LIB library file for the codes of the product application layer and the product customization layer to call. The software development platform benefits standardization, normalization and collaboration of product development; and according to the software development platform, the development efficiency is increased, the utilization rate of development resources is increased, and the development and maintenance cost is reduced.

The invention relates to a method for updating a vehicle-mounted Bootloader program through CAN communication. The method comprises the steps of programming an anti-refreshing Bootloader program in a vehicle-mounted ECU through CAN communication; updating a new Bootloader program to a Bootloader region of the vehicle-mounted ECU by using the anti-refreshing Bootloader program, and downloading a new application by using the new Bootloader program; and updating the application in the vehicle-mounted ECU. According to the method used for updating the vehicle-mounted Bootloader program through the CAN communication and adopting the structure, a UDS-based anti-refreshing Bootloader program is developed in software and can specially update an existing Bootloader program through a CAN bus. When a vehicle plant needs to update the Bootloader program, the vehicle-mounted ECU no longer needs to be dismounted, so that the later maintenance cost can be effectively reduced.

The invention discloses a low-temperature vehicle-mounted oil drilling fluid purifying system during drilling and repairing, which comprises a mud tank, a pump pry, solids control equipment, an equipment communicating pipeline, a cleaning hot water tank, a feeding tank and a steam heating pipeline, wherein a sand setting bin is communicated with a degassing bin through a high-level overflow; the degassing bin is communicated with a centrifuge bin and the centrifuge bin is communicated with a mixing bin respectively low-level overflow, communicating ports of all bins are provided with valves which can be closed, a degassing device and a high-speed centrifuge are arranged on the tops of the degassing bin and the centrifuge bin, the high-speed centrifuge is close to one side of the mud tank discharging the solid phase, and the degassing device is arranged on the tank surface the mud tank with far away from one side discharging the solid phase; a mud remover is arranged at the top of the centrifuge bin and one side closes to the degassing bin and is close to the high-speed centrifuge in parallel. The invention has the advantages of integration, compact layout, convenient and rapid disassembly and assembly, rapid movement and concentrated residual removal; and in order to adapt to the cold environment, steam heating pipelines are arranged at the bottom of the mud tank, and on a water tank and the pump pry.

The invention discloses a subsectional braking force controlling method based on velocity. The subsectional braking force controlling method comprises the steps that a deceleration and velocity curve during 100% braking level is drawn; deceleration and velocity curves during other braking levels are drawn; velocity signals are collected; the baking levels are applied; and deceleration is determined, and electric braking force is calculated and applied. According to the subsectional braking force controlling method based on velocity, the power curve of electric braking is taken as the basis of sectional braking force control, through the velocity signals output by a velocity sensor and vehicle baking applying level, braking controlling is automatically conducted by a braking system according to corresponding deceleration on the braking curve, and the problems of gliding of a high-speed section and excessive abrasion can be solved.

The invention discloses a suspension device for tunnels. The suspension device mainly comprises an embedded sleeve, a toothed slot, a countersunk head screw and an elastic gasket, wherein the embedded sleeve is cast in a tunnel concrete duct piece in advance, the casting position is in the clearance part of the reinforcement cage structure of the tunnel concrete duct piece, the toothed slot and the embedded sleeve, by use of the countersunk head screw, are cooperatively connected with the inner arc surface of the tunnel concrete duct piece or in a semi-inlaid arrangement on the inner arc surface of the tunnel concrete duct piece, so as to prevent the embedded sleeve and the toothed slot from being in contact with the reinforcement cage structure of the tunnel concrete duct piece. The electrochemical corrosion on the main structure of the tunnel by stray current can be effectively lightened, the destruction on the main structure of the tunnel concrete duct piece by manual drilling and expansion bolts in the prior art can be prevented, the construction efficiency in tunnels can be increased, the proper specification of the toothed slot can be selected according to the concrete engineering requirements, the toothed slot can be conveniently replaced, the maintenance cost and the operation cost can be reduced, and the service life of the tunnel concrete duct piece can be prolonged.

The invention relates to a quick-setting, quick-hardening, super-early-strength and high-crack-resistance pavement patching material and a preparation method thereof. In weight parts, the material ismainly prepared from the following raw materials: 16-20 parts of sulphoaluminate cement, 13-17 parts of Portland cement, 3-4 parts of a coagulation accelerator, 1-2 parts of fly ash, 1 to 2 parts of silica fume, 37 to 42 parts of graded river sand, 3.1 to 4.5 parts of a composite retarder, 0.01 to 0.02 part of an early strength agent, 0.2 to 0.3 part of a water reducing agent, 0.02 to 0.03 part ofan antifoaming agent, 0.3 to 0.5 part of a polymer adhesive and 17 to 19 parts of water, the total parts being 100 parts. The initial setting time of the material provided by the invention is 15-35 minutes, and the time requirements of different repair construction working conditions can be met; the early strength is high, the 3h breaking strength can reach 6.0 MPa or above at most, the strengthrequirement of rapid construction can be met, and the later strength is continuously increased; the material has remarkably improved toughness and compactness, the crack resistance of the material isremarkably enhanced, and the later maintenance cost is reduced. The problems that in the prior art, a repairing material is too fast in setting and hardening, low in strength and prone to cracking aresolved, and the material is suitable for emergency repairing of road engineering.