116 results about "Water damage" patented technology

The invention discloses a road flood damage disaster rapid identification method and system based on remote sensing image analysis, and belongs to the technical field of remote sensing image analysis and disaster detection, and the method comprises the steps: extracting a change region of a pre-disaster and post-disaster remote sensing image through a multi-scale differential twin network change detection module; identifying five water destruction types, namely roadbed washout, pavement collapse, side slope collapse, retaining wall collapse and bridge and culvert damage, through the cascade attention water destruction semantic segmentation network; a multi-dimensional damage degree collaborative evaluation module is used for fusing form, spectrum and spatial characteristics to calculate a damage degree grade; according to the method and the system, rapid identification, accurate classification and comprehensive evaluation of highway flood damage disasters are realized, and technical support is provided for decision-making of after-disaster rescue and maintenance.

The invention provides a subway tunnel water disaster risk evaluation method under extreme rainfall based on multi-source data, and belongs to the technical field of urban rail transit disaster prevention. The method comprises the following steps: establishing a grading evaluation system on the basis of field rainstorm monitoring data, hydrogeological parameters, field geological exploration, rock-soil physical and mechanical parameters, monitoring data of a tunnel lining structure and material strength parameters of a tunnel site area in combination with a plurality of developed tests, dividing corresponding grades and determining an influence index-; and S4, respectively carrying out weight calculation on the influence index-by adopting an analytic hierarchy process and an entropy weight method, then calculating a dynamic weight of the influence index-, correcting an abnormal dynamic weight, generating a comprehensive score, dividing risk grades, matching graded prevention and control measures, and optimizing and adjusting the prevention and control measures in real time through a parameter risk grade dynamic judgment and construction method matching mechanism. According to the method, minute-level accurate interpretation of a disaster evolution mechanism and dynamic optimization adaptation of a prevention and control scheme are realized.

The invention discloses a graphene asphalt modifier based on a micelle coating technology and a preparation method thereof, and belongs to the technical field of road materials. The modifier is prepared from reduced graphene oxide (rGO) serving as a core function phase, a micelle coating phase (compounded by polystyrene-polyoxyethylene block copolymer and ionic liquid) and an auxiliary modification phase (nano silicon dioxide and a silane coupling agent) according to the mass ratio of 10: (30-50): (5-10). The preparation method comprises the following steps: preparation and reduction of graphene oxide, preparation of an amphiphilic micelle solution, preparation of micelle-coated rGO composite particles and compounding of an auxiliary modified phase. The modifier can significantly improve the dispersibility and compatibility of graphene in asphalt, effectively prevent agglomeration, and synchronously improve the high and low temperature performance, aging resistance, water damage resistance and self-ice-melting performance of asphalt. The process is simple and convenient, is compatible with an existing asphalt production line, and is suitable for high-grade pavement engineering.

The application discloses a high-viscosity recycled asphalt mortar based on oil-rich RAP fine materials and a preparation method thereof, and belongs to the technical field of highway engineering materials. The high-viscosity recycled asphalt mortar comprises the following components: oil-rich RAP fine materials, base asphalt, a high-viscosity modifier, a recycling agent and a dissolving agent. The high-viscosity modifier comprises the following components: waste tire rubber powder grafted with GMA (glycidyl methacrylate), BMI (bismaleimide), an adhesive, isooctanol polyoxyethylene ether and sulfur. The waste tire rubber powder grafted with GMA can improve the interfacial bonding strength of the oil-rich RAP fine materials and the base asphalt, thereby improving the water damage resistance of the recycled asphalt mixture. The BMI forms an interpenetrating structure (crosslinking network) among the rubber powder, the oil-rich RAP fine materials and the base asphalt, thereby improving the crack resistance of the recycled asphalt mixture.

The utility model relates to a dam seepage failure pile planting treatment structure which is used for blocking a seepage channel in a dam, the dam seepage failure pile planting treatment structure comprises a plurality of profile steel piles, a plurality of steel sheet piles, a coarse sand inverted filter layer and a rock ballast backfill body, the profile steel piles are arranged in the dam in the gravity direction, and the coarse sand inverted filter layer is arranged in the rock ballast backfill body. The multiple profile steel piles are arranged at intervals in the length direction of the dam; the steel sheet piles are arranged in the dam in the gravity direction, the steel sheet piles are located on the upstream sides of the profile steel piles and are close to the profile steel piles, the multiple steel sheet piles are sequentially arranged in the length direction of the dam and form a plugging face, and the plugging face can shield the cross section of the permeation channel; the coarse sand inverted filter layer and the rock ballast backfill body are located on the outlet side of the permeation channel and block the outlet of the permeation channel, and the coarse sand inverted filter layer and the rock ballast backfill body are laid in sequence after being locally excavated at the outlet of the permeation channel. The pile planting disposal structure for the dam seepage damage can avoid the shortage of lifting protection and reduce the water damage loss.

The present application relates to a kind of rural road pavement widening construction methods in rainy area, including the following steps, the material component, density and moisture content of widening section subgrade should be same with the material component, density and moisture content of old roadbed same level layer, the side middle part of old road cement concrete layer is drilled and planted with reinforcement with interval distance, adjacent planted reinforcement interval is 40-50cm, then a layer of SBS anti-cracking paste is uniformly arranged along joint;1-1.5cm thick rubber stress absorbing layer is spread on the upper end surface of new and old road cement concrete layer;With new asphalt, regenerating agent material, graded RAP material, aggregate and mineral powder are mixed in hot state, then asphalt concrete surface layer is paved on the upper end of rubber stress absorbing layer, and the thickness is 5-8cm.The present application prevents water damage caused by rain, delays damage at joint, reduces the probability of crack occurrence, and improves the service performance and durability of pavement.

Methods and devices are provided for detecting the presence of electrically conductive liquids in a data storage device, such as an M.2 solid-state drive (SSD), and for triggering a failsafe mode. In an illustrative example, the SSD includes a non-volatile memory array (NVM) and a data storage controller. A linear resistive strip or other resistance sensor is mounted next to the NVM array and the data storage controller. A conductivity detector uses the linear resistive strip to detect the presence of an electrically conductive liquid. In response to the detection of the electrically conductive liquid, a power management unit (PMU) activates a failsafe processing mode. In failsafe mode, power to the NVM array and the data storage controller is disabled to prevent corrosion and short circuits.A signal is also sent to a laptop or other host in which the SSD is installed to request that the laptop be shut down.

The invention discloses an RPC reinforcing agent and a preparation method thereof, and an RPC reinforced asphalt mixture and a preparation method thereof, and belongs to the technical field of road engineering materials. According to the RPC reinforcing agent, regenerated PE-SBS-rubber powder serves as a ternary core component, a compatilizer, a filling agent, a flow aid and other auxiliaries are matched, a polymer alloy structure is formed, three-level products (RPC-I type, RPC-II type and RPC-III type) are divided according to traffic scenes, the specifications, functions and proportions of all the components are achieved, graded dynamic optimization of the asphalt mixture is achieved according to actual application environment conditions and design requirements, and the comprehensive performance of the asphalt mixture is improved. And multi-scale stress dispersion. The RPC enhanced asphalt mixture provided by the invention can realize the effects of high-temperature rut resistance, low-temperature crack resistance and water damage resistance, for example, the dynamic stability of an RPC-III type asphalt mixture at 60 DEG C reaches 14000 times / mm or above.

The invention discloses a preparation method of a dry-process SBS (styrene-butadiene-styrene) modified hot in-place recycling asphalt mixture, which comprises the following steps: firstly, weighing limestone with different particle sizes according to a ratio, preheating, heating limestone aggregate, SBS modified asphalt and a waste asphalt mixture, and uniformly mixing to obtain the dry-process SBS modified hot in-place recycling asphalt mixture. The preparation method comprises the following steps: adding a waste asphalt mixture into a stirring pot, adding the SBS modified asphalt and limestone powder into the stirring pot, stirring to obtain a new asphalt mixture, adding the waste asphalt mixture into the stirring pot, stirring, adding the SBS thermal regeneration composite modifier, stirring, adding the new asphalt mixture, and stirring to obtain the SBS modified in-situ thermal regeneration asphalt mixture. The SBS thermal regeneration composite modifier can supplement the degraded SBS component in the old asphalt mixture and restore the performance of old pavement aged asphalt, realizes comprehensive improvement of high and low temperature performance, water damage performance and fatigue cracking performance of the large-mixing-amount waste asphalt mixture by means of the quick-melting high-elasticity SBS component, is simple in addition mode, can be used for site construction, and has good application prospects. And the popularization value is very good.

To provide a vehicle wetting detection device capable of detecting wetting even in a short time.SOLUTION: A vehicle wetting detection device comprising: a measurement unit configured to measure a time from when a decrease rate of a temperature detected by a temperature sensor mounted on a vehicle becomes equal to or greater than a decrease threshold value to when an increase rate of the temperature becomes equal to or greater than an increase threshold value during traveling of the vehicle; and a detection unit configured to detect that the vehicle is wetted when the measured time is less than a predetermined time.SELECTED DRAWING: Figure 2

This utility model relates to an outdoor unit of an air conditioner, including an outdoor unit body, an electrical control box, and a heat dissipation module. The outdoor unit body has a heat dissipation duct. The electrical control box is located inside the outdoor unit body and includes a housing, a refrigeration mechanism located inside the housing, and an electrical control main board located on the side wall inside the housing. The refrigeration mechanism has an air supply vent and a return air vent, and is used to deliver cold air from the air supply vent and recover hot air from the return air vent. The heat dissipation module is located on the outer surface of the side wall of the housing where the electrical control main board is located, and is situated on the heat dissipation duct. The outdoor unit of this utility model can achieve effective heat dissipation inside the electrical control box while ensuring the sealing of the power box, effectively preventing dust and water damage.

This invention discloses a cement-emulsified semi-flexible high-strength asphalt concrete micro-expansion agent and its preparation method. The micro-expansion agent prepared by this invention can effectively control the performance of asphalt and asphalt concrete. Component A can effectively control the ductility and viscosity of asphalt, which can be controlled between 200 and 1000 mm at 10℃, effectively improving the low-temperature crack resistance of asphalt concrete. It has good coating properties with coarse aggregate, with a coating area ≥ 4 / 5, and can significantly improve the water stability of cold recycled mixtures. Component B serves the purpose of micro-expansion, reducing the porosity of asphalt concrete. The porosity can be controlled within 8-13%, further improving the water damage resistance and strength of asphalt concrete. At the same time, component C can regulate the demulsification time of emulsified asphalt, and the demulsification rate can be controlled within 3-8 hours, fully meeting the requirements of mixing and construction.

The invention relates to the technical field of road engineering materials, in particular to modified asphalt and a preparation method thereof. Comprising road asphalt, a geopolymer precursor solution, a star-shaped SBS modifier, epoxidized natural rubber, epoxidized soybean oil, a mercapto silane coupling agent, dibutyltin dilaurate, hydrogenated petroleum resin, nano organic montmorillonite, a wax regulator, a light stabilizer and an antioxidant. The geopolymer precursor solution, the epoxidized natural rubber and the epoxidized soybean oil are subjected to synergistic reaction under a mercaptosilane bridging system to construct a stable organic-inorganic hybrid interpenetrating network structure, so that the technical bottleneck of poor two-phase compatibility is effectively overcome; the modified asphalt has the advantages of excellent high-temperature stability, strong interface bonding force, excellent water damage resistance, good low-temperature toughness and good storage stability.

The application provides an intelligent detection and evaluation method for bridge fire damage and water damage, comprising the following steps: S1: multi-source data acquisition; S2: spatiotemporal alignment and fusion of the data collected in step S1 to form a disaster damage digital twin base model bearing real-time damage information; S3: intelligent identification and quantification of damage; S4: calibration of a reference finite element model and evaluation of bearing capacity; and S5: generation of a visual report. The application realizes a detection process of first remote and then close, and first non-contact and then contact through a UAV and a robot, greatly reduces the risk of personnel entering a high-risk environment, forms a continuously updated closed-loop system through a digital twin model, greatly reduces the subjectivity and uncertainty of the evaluation results, and makes the emergency decision-making more standardized and verifiable.

To provide a gas cylinder fixing device capable of preventing a gas cylinder from falling down even if an earthquake occurs, facilitating the replacement work of the gas cylinder, preventing the gas cylinder from flowing out even if a water damage such as a flood occurs, and preventing a house from being damaged.SOLUTION: This device is provided with a placing stand side 100A for placing a plurality of gas cylinders GB side by side, two first locking hook side walls fixedly provided on the placing stand side 100A for locking a flange part side GB2 of a skirt side GB3 of the gas cylinder GB from the inside, and two second locking hook side walls attachable / detachable to / from the placing stand side 110A for locking the flange part side 100A of the skirt side GB1 of the gas cylinder GB from the inside. 200A GB3.SELECTED DRAWING: Figure 1

Systems and methods are described for detecting and responding to a likelihood of a heating system malfunction. The method may include: (1) receiving home telematics data associated with a structure, wherein the home telematics data includes local weather data for an area associated with the structure; (2) receiving operation data regarding a functionality of a heating system associated with the structure; (3) diagnosing, based upon at least the home telematics data and the operation data, a potential malfunction in the heating system; (4) determining, based upon at least the diagnosis, that a threshold likelihood of bursting is exceeded for one or more pipes; and (5) transmitting an indication to a user associated with the structure that the one or more pipes are likely to burst.

The application discloses a bridge water-damaged beam plate rapid erecting device and a construction method, the device comprises a pulling gantry device, a pushing device, a sling connecting device, a rolling supporting device, a counterforce device, an anchoring device and a temporary lengthened beam section, the pulling gantry device comprises a frame body, a cross beam and a suspension device, the frame body is anchored on a roadbed and / or a bridge deck through the anchoring device, the cross beam is fixedly connected at the top of the frame body, and the suspension device is installed on the cross beam, the rolling supporting device is arranged below a precast beam plate, the counterforce device is anchored on the roadbed and / or the bridge deck through the anchoring device, the pushing device is connected with the counterforce device and used for pushing the precast beam plate to move forward, the sling connecting device is detachably connected with pre-buried members at the front and back ends of the precast beam plate and can be connected with a sling of the suspension device, and the temporary lengthened beam section can be detachably connected at the back end of the precast beam plate, and the bridge water-damaged beam plate erecting construction can be completed without using large hoisting equipment, the construction is rapid and low in cost.

A vacuum that couples to storage units is provided. The vacuum includes a motor, an internal compartment, and an inlet and outlet that provide fluid communication between the internal compartment and an exterior of the vacuum. The vacuum includes one or more mechanisms to protect internal components from water damage and to prevent debris from escaping the internal compartment when the vacuum is being transported.

The invention relates to the field of pavement materials, and particularly discloses a composite asphalt modifier as well as a preparation method and application thereof. The composite asphalt modifier comprises the following raw material components in parts by mass: 2-5 parts of liquid coumarone resin; 1 to 5 parts of chitosan-nano clay; 1-5 parts of sodium alginate; 8 to 20 parts of decrosslinked waste rubber powder; 2-5 parts of an ethylene-vinyl acetate copolymer; 3-8 parts of polyethylene wax; 0.2 to 0.5 part of a cross-linking agent; 0.5-5 parts of a rheological agent; and 0.01 to 0.1 part of an anti-aging agent. According to the present invention, the asphalt material prepared by using the composite asphalt modifier has characteristics of excellent water damage resistance and excellent mechanical property, such that the new idea is provided for the development of the asphalt material, and the problems of poor performance and poor water damage resistance of the asphalt material used for the drainage asphalt pavement in the prior art are effectively solved by using the technical scheme of the present invention.

The invention discloses red mud-phosphogypsum synergistically modified asphalt mortar and a preparation method thereof. The method comprises the following steps: modifying red mud and phosphogypsum, and adding an SBS modifier, a compatilizer, a stabilizer, an exciting agent, slaked lime and wood fibers to design asphalt mortar and an asphalt mixture with excellent high and low temperature performance. According to the method, the low-temperature flexibility of the asphalt mortar is improved and the brittleness of the asphalt mortar at low temperature is reduced by utilizing the synergistic effect of the red mud, the ardealite and the exciting agent hydroxyapatite or carbonated apatite; the red mud and the ardealite can excite the reaction activity among different metal ions under the action of the exciting agent hydroxyapatite or apatite carbonate, so that the red mud and the ardealite are promoted to form a more complex spatial network structure with the asphalt and form a complex spatial network structure with the asphalt, the cohesion and the deformation resistance of the asphalt mortar are enhanced, and the service life of the asphalt mortar is prolonged. The high-temperature stability of the asphalt mortar is effectively improved, and the rut damage of a pavement under a high-temperature condition is reduced; active ingredients of the red mud and the ardealite chemically react with certain components in the asphalt, so that the water stability of the asphalt mortar is further improved, and the diseases such as pits and slots caused by water damage to the pavement are reduced.

The present application relates to the technical field of oil and gas pipeline safety monitoring. A kind of oil and gas pipeline water damage suspension identification method based on virtual buried depth datum is disclosed. The prior art lacks post-disaster buried depth determination datum, it is difficult to convert surface erosion into engineering conditions such as insufficient covering, and it is impossible to continuously identify long-distance pipe sections. The present application constructs a pipeline analysis corridor and extracts a stable reference area, reconstructs a virtual buried depth datum based on the stable reference area ground elevation and design buried depth; generates an orthogonal analysis profile along the pipeline, calculates the residual covering thickness and discriminates the support continuity, jointly determines the suspected suspended profile; splice adjacent abnormal profiles to form abnormal sections and identify the suspension risk level. The present application constructs a theoretical discrimination control surface through the post-disaster stable ground form, without pre-disaster measured data; realizes the joint determination of residual covering thickness and support continuity; supports continuous segmented identification and automatic review of long-distance pipe sections, and improves the accuracy and engineering applicability of water damage suspension identification.

The invention relates to the technical field of engineering material water seepage performance testing, in particular to a water seepage performance detection device and a method for detecting the water seepage performance of an asphalt pavement. The water seepage performance detection device comprises a rack, a rectangular cylinder barrel and a test piece cavity which are communicated with each other are sequentially fixed to the rack from top to bottom, and a piston is in sliding fit in the rectangular cylinder barrel; a power driving device for driving the piston to move up and down is arranged on the rack; an air inlet pipe is fixed to the rectangular cylinder barrel, in the reciprocating motion process of the piston, external air is periodically sucked into the rectangular cylinder barrel through the air inlet pipe, and dynamic pressurization is formed on liquid in the rectangular cylinder barrel; according to the invention, the vertical dynamic pressure generated by the piston is coupled with the horizontal asymmetric surge excited by the plug flow plate, and the dynamic composite hydraulic load highly similar to the actual pavement can be reproduced in the surface and internal pores of the test piece, so that the dynamic water damage resistance of the asphalt pavement can be evaluated more truly and accurately.

The invention discloses a sustainable asphalt regenerant, a preparation method and application, the sustainable asphalt regenerant comprises methyl palmitate, methyl linoleate, methyl oleate, methyl stearate, methyl eicosenoate, methyl arachidonate and the like, the content of saturated fatty acid methyl ester exceeds 21.3-25.6% of the total content of fatty acid methyl ester, and the content of saturated fatty acid methyl ester exceeds 21.3-25.6% of the total content of fatty acid methyl ester. The content of unsaturated fatty acid methyl ester exceeds 66.2-70.5% of the total content of fatty acid methyl ester, and the total fraction is 100%; the regenerant is prepared from waste edible oil and fat as a raw material, and compared with a traditional petroleum-based regenerant, the regenerant is wide in source, low in raw material cost and renewable. The sustainable asphalt regenerant can effectively recover various properties of aged asphalt, and solves the problems of poor water damage resistance and durability caused by high content of acidic compounds in the existing waste edible oil asphalt regenerant; meanwhile, the recovery and reutilization of the waste edible grease and the aged asphalt material are realized.

The invention relates to a preparation method of a skeleton embedded compact asphalt mixture, and belongs to the technical field of asphalt mixture preparation. Putting the preheated coarse aggregate and fine aggregate into stirring equipment, carrying out dry mixing, then adding the modified asphalt, carrying out wet mixing, finally adding the modified filler, and continuously carrying out wet mixing, so as to obtain an asphalt mixture; loading the asphalt mixture into a test mold, adopting a double-sided static pressure molding process, performing static pressure, cooling and demolding to obtain a skeleton-embedded compact asphalt mixture; the modified filler is prepared from limestone mineral powder, gamma-methacryloxy propyl trimethoxy silane, 8-anilino-1-naphthalene sulfonic acid magnesium salt, absolute ethyl alcohol and sodium perethoxide; the Marshall stability, the low-temperature bending strain and the freeze-thaw splitting strength ratio of the prepared asphalt mixture are remarkably improved, and the asphalt mixture can effectively resist high-temperature rutting, low-temperature cracking and water damage.

The invention is suitable for the technical field of road engineering materials, and provides a foam warm mix asphalt mixture wheel-rolling mix proportion method based on performance balance. The method comprises the following steps: preparing a foam warm mix asphalt mixture track plate test piece; performing a high-temperature wheel tracking test; performing a low-temperature bending test; calculating a performance balance factor based on climate partitioning; and obtaining the optimal asphalt-aggregate ratio according to the asphalt-aggregate ratio upper limit and the asphalt-aggregate ratio lower limit in combination with the performance balance factor, and verifying the water damage resistance and the volume characteristic. The optimal asphalt-aggregate ratio of the foam warm mix asphalt mixture is determined by adopting a quantitative performance balancing method and a wheel rolling method, the operation is simple and convenient, and the performance target is clear; according to the method, the defects that the actual pavement performance is not considered and the optimal asphalt dosage cannot be quantitatively adjusted in combination with climate partitions when the optimal asphalt-aggregate ratio of the foam warm mix asphalt mixture is determined by a traditional Marshall design method are overcome, the field pavement performance of the foam warm mix asphalt mixture is improved, the service life of the foam warm mix asphalt mixture is prolonged, and the method has wide applicability and popularization value.

The invention belongs to the technical field of asphalt pavement maintenance, and particularly relates to an asphalt pavement preventive maintenance agent and a preparation process thereof. The preventive curing agent for the asphalt pavement is prepared from the following components in parts by mass: 35 to 55 parts of waterborne epoxy resin emulsion, 10 to 25 parts of chlorine salt-resistant enhancer, 5 to 15 parts of redispersible latex powder, 10 to 20 parts of waterborne epoxy curing agent and 20 to 40 parts of water, the chlorine salt-resistant reinforcing agent is a compound of epoxy silane modified filler and hyperbranched polysiloxane containing amino in a mass ratio of (3-6): 1. The preventive curing agent for the asphalt pavement provided by the invention can improve the low-temperature crack resistance and water damage resistance of the asphalt pavement, so that the asphalt pavement has excellent ultraviolet-chlorine salt resistance.

The utility model discloses a novel waterproof display screen for new energy vehicle relates to display screen relevant field, including waterproof frame subassembly, drainage component, ventilation subassembly, waterproof frame subassembly rear end is connected with drainage component fixedly, drainage component rear end is connected with ventilation subassembly fixedly, waterproof frame subassembly still includes: waterproof outer frame, waterproof outer frame rear end is connected with drainage component fixedly, the slot is established in waterproof outer frame rear end, the buckle block is fixedly connected in waterproof outer frame through the slot, waterproof light -transmitting film, waterproof light -transmitting film is placed in waterproof outer frame rear end, waterproof adhesive tape, waterproof adhesive tape fixedly connected in waterproof light -transmitting film front and rear both ends, through setting up the drainage component that can drain to display, make this device in the display water when can carry out detection automatic drainage and avoid display water damage.

The invention relates to a preparation method of a high-performance modified asphalt ultrathin overlay mixture. The preparation method comprises the following steps: 1) preparing a polyurethane prepolymer; 2) preparing polyurethane modified asphalt; and 3) mixing the mixture. The ultra-thin overlay asphalt mixture is prepared by adopting various synergistic effects of chemical modification, physical modification and interface optimization, and under the combined action of synergistic modification of polyurethane and rock asphalt and optimization of a system state by the warm mixing agent and the silane coupling agent, the ultra-thin overlay asphalt mixture is prepared. The polyurethane modified asphalt ultrathin overlay mixture has high and low temperature resistance and water damage resistance at the same time.

A vacuum that couples to storage units is provided. The vacuum includes a motor, an internal compartment, and an inlet and outlet that provide fluid communication between the internal compartment and an exterior of the vacuum. The vacuum includes one or more mechanisms to protect internal components from water damage and to prevent debris from escaping the internal compartment when the vacuum is being transported.

The invention discloses a rapid erection device and construction method for a bridge flood damage beam slab, and the device comprises a beam slab erection truss, a pilot truss, a deflection adjusting device, a truss pushing device, a truss jacking device, a rolling supporting device, a counter-force device and an anchoring device, and the pilot truss is installed at the front end of the beam slab erection truss; the deflection adjusting device is installed at the front end of the pilot truss, the truss jacking devices are installed at the front end and the rear end of the beam plate erecting truss respectively, the rolling supporting device is arranged below the beam plate erecting truss, and the truss jacking devices are connected with the counter-force device. A transverse moving device is installed on a jacking cross beam of the truss jacking device, a beam plate erecting truss is connected with the transverse moving device, a supporting walking device is installed at the lower end of a jacking telescopic supporting column, a longitudinal sliding device is installed on a truss lower chord, and the lower end of the longitudinal sliding device is connected with a hoisting device. According to the method, beam and slab erecting construction of the flood-destroyed bridge can be completed on the basis that large hoisting equipment is not used, construction is rapid, and cost is low.