40results about How to "Express traffic" patented technology

The invention provides a method for preparing a geopolymer grouting material and a method for applying the geopolymer grouting material to static pressure grouting. Raw materials for preparing the geopolymer grouting material include steel slag, mineral slag, sodium silicate, silica fume, calcium bentonite, softened water and a composite alkali activator. The method for preparing the geopolymer grouting material comprises the steps that 1, a component A is prepared; 2, a component B is prepared; 3, a component C is prepared; and 4, the geopolymer grouting material is prepared. The method for static pressure grouting comprises the steps of 1, survey; 2, assessment; 3, pit sounding; 4, hollowing general survey; 5, deflection value check; 6, comprehensive evaluation; 7, measurement and hole arrangement; 8, drilling; 9, grouting; 10, check; 11, grouting hole sealing; and 12, recheck to complete static pressure grouting. The methods have the advantages of environmental friendliness, low viscosity, high elasticity modulus, high cohesiveness, low cost, high efficiency and high durability.

The invention discloses an urban road inspection well. The urban road inspection well comprises a shaft, a concrete precast block, a well periphery reinforcement cage, a well base, a well lid, a template, an early strength concrete layer and an asphalt surface layer. A well periphery support structure of the inspection well mainly includes two parts of the well periphery reinforcement cage and the earth strength concrete layer; the two parts are organically combined to effectively treat such more general and frequent diseases as well periphery sinking and well periphery road surface destruction of the inspection well frequently generated in urban road pavements; and the inspection well not only solves the frequent generation problems of well periphery sinking and local destruction, but also can overcome the limited difficulty of the construction time of urban roads. The inspection well structure is also suitable for repairing and transforming the destructed inspection well, and can achieve the effects of quick repair of the inspection well with urban road well periphery sinking and local destruction, quick traffic opening and thorough treatment of well periphery diseases.

The invention discloses a railway ice and snow removing method. The railway ice and snow removing method comprises the steps: a railcar provided with wheels matched with a rail and used for providingdriving force is placed on a railway; a frame body is mounted at the front end of the railcar, and thus the frame body can travel along the rail under the effect of the driving force of the railcar; when the frame body travels along the rail, accumulated snow and accumulated ice on the railway are shoveled away through a snow shoveling device mounted on the frame body; the accumulated snow and theaccumulated ice which are shoveled away by the snow shoveling device are collected through a flow guiding pipe mounted on the frame body; and through a snow spraying device mounted on the frame body,the accumulated snow and the accumulated ice which enter the flow guiding pipe are conveyed out from the air outlet end of the flow guiding pipe. According to the railway ice and snow removing method, the wild snow and the solid snow on the railway can be removed, the accumulated ice on the rail can also be removed, the ice and snow removing efficiency is high, and fast traffic is facilitated. Inaddition, the invention further provides the railway ice and snow removing car.

The invention relates to a bridge modular expansion joint repairing method. Structural investigation is performed on an expansion joint in advance before construction, and the damage condition of theexpansion joint is determined so as to select a corresponding repairing method. The damage comprises the following conditions: 1, a middle beam is damaged and an expansion box is not damaged; 2, the middle beam is not damaged, and the expansion box is damaged; 3, partial expansion joint is damaged. Aiming at the damage condition, a local repairing method is adopted, the whole expansion joint doesnot need to be replaced, only the damaged part needs to be locally repaired or locally replaced, and on the premise that the integrity and the service life of the expansion joint are guaranteed, the cost is saved, the repairing efficiency is improved, the construction time is saved, and rapid traffic restoration is achieved. During repair construction, only one traffic lane is closed for maintenance, so that the traffic pressure of the bridge floor is relieved, and potential safety hazards are reduced.

The invention belongs to the technical field of traffic facilities, and particularly relates to a carpet type elastic function marker and a preparation method thereof. The function marker comprises a marker coating and 1-2 parts of bottom films, wherein the maker coating comprises, by weight, 10-18 parts of film materials, 50-70 parts of fillers, 10-30 parts of pigments, 1-10 parts of photocatalytic materials, 1-5 parts of blending agents, 1-5 parts of supplements, 1-5 parts of coupling agents, 1-5 parts of leveling agents and 1-5 parts of plasticizers. Compared with the prior art, the carpet type elastic function marker and the preparation method thereof are convenient in operation and can be used for selecting a road marker position, the marker is adhered to a pavement and compacted by rolling equipment after determining the position, traffic can be opened immediately, and the shortcoming of repeated line drawing due to traditional marker spraying errors is overcome.

The invention relates to the technical field of tunnel maintenance, and provides a device for treating tunnel water seepage. The device comprises a corrugated steel plate arch ring attached to a tunnel lining and a pair of drainage assemblies which are correspondingly arranged on the two sides of the tunnel lining; each drainage assembly comprises two drainage side walls, and a drainage ditch is formed between the two drainage side walls; the drainage side wall close to the tunnel lining is attached to the tunnel lining, a drainage groove is formed in the top end of the drainage side wall close to the tunnel lining in a concave mode, and the corrugated steel plate arch ring extends into the drainage groove and guides seepage water into the drainage ditch through the drainage groove. The device aims to solve the problem of water leakage of the tunnel lining; moreover, the water leakage damage of a tunnel can be rapidly treated under the condition that the tunnel lining is not damaged, the construction and drainage efficiency is improved, and the tunnel is rapidly recovered to be open to traffic.

A stirring cavity is formed in a machine shell, a stirring motor cavity is formed in the left end wall of the stirring cavity, a powder discharging cavity is formed in the upper end wall of the stirring motor cavity, a hot air cavity is formed in the right end wall of the stirring cavity, and a pair of fan motor cavities which are symmetrical up and down are formed in the right end wall of the hot air cavity; a stirring mechanism, a grinding mechanism and a discharging mechanism are arranged in the machine shell, the stirring mechanism is provided with a stirring screw and can stir asphalt during asphalt heating, and the grinding mechanism is provided with a dust collection cavity and a grinding block and can grind an uneven road surface during equipment operation; asphalt powder and gravel powder generated in the grinding process can be recycled again, raised dust generated in the repairing process is reduced, the discharging mechanism is provided with a movable rod rolling wheel, in the equipment operation process, uneven places can be found out, the quality of asphalt needed for repairing can be detected, and preparation is made for subsequent asphalt discharging.

The invention discloses rapid open-to-traffic concrete for repairing pits on a cement concrete pavement. The concrete is prepared from the following raw materials at a specific ratio: composite cement, wear-resisting medium sand, crushed stones, water, a polycarboxylic acid water reducer and a compound additive. An inorganic cement-based gel material is used for modifying so that the problems that asphalt concrete is high in repairing material cost and poor in repairing effect, the hardening speed of common cement concrete is slow, the close-to-traffic time is long and the long-term strength is decreased are solved. C2S is added into P.S42.5 cement to improve the long-term strength of the concrete; the hydration induction period and the condensation time of the cement are shortened through a compound additive so that high early strength and controllable condensation and hardening time are realized. The rapid open-to-traffic concrete can be used for repairing the pits on the cement concrete pavement, can meet rapid open-to-traffic requirements of open-to-traffic time of 2h, 5h, 12h and the like and has important value on low pavement maintenance cost and rapid open-to-traffic recovery speed.

The invention discloses a road and bridge engineering concrete crack control method. The method comprises the following steps: S1, preparing materials: preparing Portland cement, a stabilizer, an additive, sandstone, an acrylamide polymer and an epoxy resin slurry material; S2, cleaning impurities: cleaning the surfaces of the concrete cracks; S3, cement mixing: respectively adding Portland cement, a stabilizer, an additive and sandstone into a stirrer, adding a proper amount of water, and starting the stirrer to perform high-speed mixing and stirring; S4, grooving and filling: forming a V-shaped groove in the middle end of the crack, adopting pressure feed equipment to start high pressure filling so as to uniformly fill mixed materials into the cracks of the V-shaped groove; S5, uniform leveling: uniformly smearing the mixed materials on the surfaces of the cracks, and flattening the surface of the cracks in the concrete by adopting a scraping-leveling device; and S6, coating and air-drying. The coating has good high-temperature stability and low-temperature embrittlement resistance, does not melt at high temperature, does not crack at low temperature, and is wear-resistant and corrosion-resistant.

The invention relates to a novel pre-buried unit type ultra-long life multi-directional deflection bridge telescopic device. The novel pre-buried unit type ultra-long life multi-directional deflectionbridge telescopic device comprises a main toothed plate and an auxiliary toothed plate; steel plates are preinstalled between the main toothed plate and a first bridge beam body as well as between the auxiliary toothed plate and a second bridge beam body; the steel plates are fixed to the first bridge beam body and the second bridge beam body through anchor rings; box bodies are fixed to the lower portions of toothed plate parts of the main toothed plate and the auxiliary toothed plate correspondingly, and the box bodies are fixed to the steel plates; first stiffening plates are fixed to thelower portions of comb tooth parts of the main toothed plate and the auxiliary toothed plate, the side surfaces of the first stiffening plates are fixed to the box bodies, the interior of each box body is of a cavity structure, and concrete is poured in the cavity structures; and the toothed plate parts of the main toothed plate and the auxiliary toothed plate are provided with a plurality of welding holes at equal intervals in the transverse direction of the toothed plate parts, and the welding holes communicate with the interiors of the box bodies. The novel pre-buried unit type ultra-long life multi-directional deflection bridge telescopic device is high in structural strength, and capable of achieving quick installing and saving construction time.

The invention discloses a prefabricated asphalt pavement water-sealing anti-slip anti-crack sticking and a construction process thereof, comprising a base surface, wherein the top end of the base surface is provided with a geotextile, the top end of the geotextile is provided with a water-proof adhesive layer, the top end of the water-proof adhesive layer is provided with an anti-slip layer, the geotextile, the water-proof adhesive layer and the anti-slip layer are laid and formed by mechanical equipment, and the geotextile, the water-proof adhesive layer and the anti-slip layer have an overall thickness of 6-17mm. As that thickness of the pavement is thin, the self-weight of the original pavement is basically not increase, the compressive strength, the toughness, the tensile strength andthe adhesive strength are good, the pavement can well bear the vehicle load without damage, the waterproofing ability and the waterproofing ability are strong, and the pavement can be effectively protect from water damage.

The invention discloses a novel speed bump for a municipal road. The speed bump comprises a speed bump body, circular vibration isolation rubber damping supports and studs, wherein the upper end surface of the speed bump body is an arc convex surface, the vibration isolation rubber damping supports are continuously arranged in a groove in a transverse direction of the road, a screw hole is formedin the bottom of each support, each screw hole is penetrated with a stud, the circular vibration isolation rubber damping supports are fixedly connected with the bottom surface of the preset groove through the studs, the speed bump body is arranged above the vibration isolation rubber damping supports, the upper end surface of the speed bump body is the arc convex surface, and the part, positionedat the outer side of the groove, of the speed bump body is a convex part. The novel speed bump disclosed by the invention has the advantages that the novel structure is simple; the vibration feel when a vehicle passes through the speed bump is reduced; and furthermore, by replacing the speed bump body and the vibration isolation rubber damping supports, the maintenance time of the speed bump is saved, and the purpose of enabling the vehicle to pass through the speed bump quickly is achieved.

The invention relates to the technical field of cement concrete building materials, especially to concrete for an anchorage zone of a highway bridge expansion device and a preparation method thereof. A formula of the concrete comprises the following components, by mass: 160-170 parts of water, 410-420 parts of cement, 610-620 parts of sand, 1200-1210 parts of stone, 3-4 parts of a water reducer, 11-12 parts of an antifreezing agent, 110-120 parts of steel fibers, and 1-2 parts of PVA fibers. According to the invention, through a large number of experiments, a suitable concrete mix ratio and a reasonable manufacturing process, feeding sequence, stirring time and stirring mode of a test piece are obtained, which can effectively improve the early strength of the concrete and reduce the maintenance cycle of the concrete, thereby achieving the effect of rapid open to traffic.

The invention relates to the technical field of road paving, in particular to a paving structure of an electric vehicle track in a level crossing transition area and a construction method of the paving structure. High-elastic self-adaptive asphalt mixture blocks and ultra-high performance concrete blocks are filled between a pavement layer and steel rails; wherein the high-elastic self-adaptive asphalt mixture block and the ultra-high performance concrete block are both arranged above the roadbed layer, and the high-elastic self-adaptive asphalt mixture block is limited between the pavement layer and the ultra-high performance concrete block; and the high-elastic self-adaptive asphalt mixture block and the ultra-high performance concrete block are combined to form a buffer energy absorption transition section of the pavement layer. The structure has the advantages that the problems of cracking, delaminating, slippage, rutting, poor durability and the like can be effectively solved; the structure has high flexibility and self-adaptability, is high in the asphalt consumption; is great in the durability, realizes smooth connection, is high in waterproof performance, and can be repaired together with jointed pavements, is free of maintenance and long in service life, and can rapidly be delivered for traffic, and is simple in maintenance.

The invention provides an urban road applied to the technical field of roads, which is characterized in that a forward driving lane (1) of the urban road sequentially comprises a forward bus lane (6),a forward motor vehicle fast lane (7), a forward motor vehicle slow lane (8) and a forward non-motor vehicle lane (9) from one side of a road middle isolation zone (3) to one side of a forward sidewalk (4); and the reverse driving lane (2) is sequentially provided with a reverse bus lane (10), a reverse motor vehicle fast lane (11), a reverse motor vehicle slow lane (12) and a reverse non-motor vehicle lane (13) from one side of the road middle isolation belt (3) to one side of the reverse sidewalk (5). The urban road has a simple structure. Through configuration improvement to bus lane and other lanes in the urban road, the bus lane is prevented from being occupied by motor vehicles and non-motor vehicles, the bus can be quickly opened, and the running efficiency of the bus is improved.

The invention relates to a semi-rigid base crack trenchless grouting repair material and a preparation method thereof. The semi-rigid base crack trenchless grouting repair material comprises the following components in parts by weight: 70-100 parts of a two-component polyurethane prepolymer, 10-15 parts of diatomite powder, 150-200 parts of cement, 60-80 parts of water and 1.0-2.0 parts of a retarder. The diatomite, the cement and the polyurethane form a network interpenetrating multi-element composite structure, so that the compactness and the bonding strength of the splicing interface part of the new pavement base layer and the old pavement base layer are favorably improved. The activity of the diatomite can be excited after calcination and ball milling, the average particle size of the calcined and ball-milled diatomite becomes smaller, the particle size distribution is wide, the specific surface area becomes larger, the faster the reaction speed with calcium hydroxide in cement paste is, the more hydration products in unit time are, and the quantity of hydrated calcium silicate in cement paste is increased. The calcium-silicon ratio and the content of calcium hydroxide are reduced, and the strength of cement is improved.

The invention discloses asphalt pavement rapid maintenance and drying solidification equipment. The equipment comprises a transport carrier, wherein an asphalt heating and stirring tank is arranged onthe transport carrier, the asphalt heating and stirring tank is provided with an electric heating coil pipe, a spiral conveying rod is arranged in the asphalt heating and stirring tank, an electric heating inner core is arranged in the spiral conveying rod, the lower end of the spiral conveying rod is erected at a discharging port of the lower end of the asphalt heating and stirring tank througha bearing, the electric heating inner core is electrically connected with a conductive wire through a rotating connecting part, formed by an electric conductor, at the upper end of the spiral conveying rod, and the conductive wire is connected with a power supply; and a pressing roller is arranged on the position, at rear side of the asphalt heating and stirring tank, of the transport carrier, thetwo ends of a pressing roller rotating shaft are connected with a cooling system, and cooling liquid is circulated in the rotating shaft and the cooling system. According to the equipment, the spiralconveying rod can quickly convey asphalt downwards to damaged pavement needing to be supplemented with the asphalt, and the asphalt on the pavement can be rapidly flattened by the pressing roller andquickly cooled through the cooling circulation system arranged in the pressing roller, so that the asphalt is hardened.