352results about "Paving reinforcements" patented technology

The utility model relates to an FEBD seamless bridge deck connecting plate adopting a T-shaped shear nail structure, which comprises a semi-continuous UHPC bridge deck connecting plate arranged on the upper side of a telescopic gap at a beam end in a crossing manner, and a polyurethane pavement layer used for bearing vehicle load is paved on the upper side of the semi-continuous UHPC bridge deck connecting plate. T-shaped shear nails are arranged between the polyurethane pavement layer and the semi-continuous UHPC bridge floor connecting plate. According to the connecting plate, the seamless bridge floor can be realized, and the diseases such as pavement layer disengagement and hemming caused by large deformation difference when wheels pass through the expansion joint are obviously relieved; and in addition, the complex space stress state of the bridge deck can be better adapted, the normal use requirement of the bridge deck continuous structure is met, the construction period is effectively shortened, and the influence on traffic is small.

A surface structure to form an area of hard-standing and method of forming the same, comprising at least a first mesh and typically a ballast material, and possibly a second or further mesh layer, and a particulate body formed by a particulate material bound by a resin acting as an external surface for the surface structure. The mesh layers act to reinforce the relatively unitary structure, reducing damage to the particulate body that may otherwise be subject to crack propagation.

The invention discloses a multi-stage gradient reinforced composite filler for a high-filling embankment and a construction process of the multi-stage gradient reinforced composite filler, and belongs to the technical field of embankment fillers, and in the multi-stage gradient reinforced composite filler, the overall structure stability is remarkably improved through layered material combination. The self-locking structure of the three-level aggregate enhances the non-deformability of the filler, the large-particle-size broken stones form skeleton support, the modified fly ash fills pores to improve the compactness, and the machine-made sand surface treatment technology enhances the cohesive force among particles. The cementitious material realizes synergistic development of early strength and later strength, rapid hardening of the sulphoaluminate cement and continuous hydration of the superfine slag powder cooperate with each other, and the microstructure is optimized in cooperation with the nano material. The gradient reinforcement system exerts characteristics of different materials in a layered mode, the deep steel-plastic belt anchors the foundation to prevent slippage, the middle-layer fiber grid disperses stress, the surface-layer non-woven fabric inhibits shallow-layer cracking, three-dimensional protection from inside to outside is formed, microcracks are continuously repaired through the microbial agent, shrinkage deformation is compensated through the expanding agent, and the long-term service performance is comprehensively guaranteed.

The present invention discloses a crack-resistant and durable long-life asphalt pavement structure and its construction method, which relates to the technical field of asphalt pavement construction. It includes an asphalt surface layer, a reinforcement mesh, positioning piles, and fixing rings. A geotextile stress absorption layer is provided under the asphalt surface layer, and a prime coat is provided under the geotextile stress absorption layer. The prime coat is SBS modified emulsified asphalt. By using polypropylene geotextiles to reinforce the pavement structure and form a composite structure with road materials, it has strong interfacial effects and reinforcement functions, forms a good whole with the surface layer and the base layer, effectively prevents or delays the cracking of asphalt pavements, improves the service life of the asphalt surface layer. After the polypropylene geotextiles are combined with the prime coat oil, it has excellent waterproof effects, prevents surface water from seeping into the pavement structure and eroding the roadbed, and extends the service life of the pavement.

The invention discloses a geogrid and EICP synergistically reinforced soil embankment structure and a construction method, and relates to the technical field of soil embankment structures. Comprising a pavement base layer, an embankment bearing layer and a natural soil foundation layer, and the natural soil foundation layer is used as a soil embankment structure support and is arranged at the bottommost layer; the pavement base layer is used for bearing an upper driving load and uniformly transferring the upper driving load to the embankment bearing layer below; and the embankment bearing layer is used for bearing the upper load transmitted by the pavement base layer. The engineering performance is improved through the multi-layer synergistic effect, the core reinforcing layer is of an innovative space grid structure and is composed of a prefabricated geogrid, a grid support arranged in the inclined direction and a rigid stress plate frame, a three-dimensional force transmission network is formed, the limitation of a traditional reinforcing method is broken through, and the engineering performance is improved. In addition, the grating support is arranged at a specific angle, the structural rigidity is guaranteed, and the stress concentration phenomenon is avoided.

A paving process for an asphalt overlay is characterized by comprising the following steps: step 1, forming a plurality of parallel grooves on the surface of a road base; step 2, filling the grooves with foamed asphalt; step 3, laying an intermediate reinforcing asphalt layer; and step 4, laying a surface strengthening layer.

This invention relates to a pavement structure and its installation method. The pavement structure includes a main body, which comprises a base layer, a concrete layer, and a first bonding layer. The first bonding layer is disposed between the base layer and the concrete layer to bond the base layer and the concrete layer. A storage tank is fixedly disposed on the side of the main body. The storage tank is used to store an aqueous solution of light stabilizer, and the top of the storage tank is provided with a feeding port, in which a plug is detachably installed. The main body also includes a hydrophilic polymer fiber mesh, which is laid on the concrete layer and extends into the storage tank from the side. The polymer fiber mesh can adsorb and disperse the aqueous solution of light stabilizer on it. The surface tension of the fibers promotes the flow of liquid, and the aqueous solution of light stabilizer in the storage tank is uniformly absorbed and dispersed throughout the pavement structure, extending the UV resistance of the pavement structure and ensuring the full service life performance of the concrete.

The utility model relates to the technical field of old cement road transformation, and discloses a concrete white-to-black pavement structure which comprises a cement pavement layer, a plurality of groups of transverse cutting grooves and longitudinal cutting grooves which are communicated in a staggered mode are formed in the upper side of the cement pavement layer, transverse connecting plates are installed at the bottoms of the transverse cutting grooves, and longitudinal connecting plates are installed at the bottoms of the longitudinal cutting grooves. A plurality of first asphalt layer connectors are installed on the upper side of the transverse connecting plate, second asphalt layer connectors are installed on the upper side of the longitudinal connecting plate, and connecting steel bars penetrate through the multiple second asphalt layer connectors on the same straight line. Compared with the prior art, the concrete pavement structure has the advantages that a plurality of groups of transverse cutting grooves and longitudinal cutting grooves are cut on the upper side, asphalt is poured into the transverse cutting grooves and the longitudinal cutting grooves, and the connecting strength between a concrete pavement layer and an asphalt layer is enhanced through the asphalt layer connectors I and the asphalt layer connectors II in the transverse cutting grooves and the longitudinal cutting grooves; and the phenomena of interlayer gaps and asphalt surface layer falling are prevented.

The present invention discloses a method for preventing cracking of cement concrete pavement by adding asphalt concrete, comprising the following steps: construction of pavement base layer; adding measures to prevent uneven settlement of the base layer; construction of cement concrete pavement; cutting of cement concrete pavement; grouting of cement concrete pavement; construction of curbstones; paving of reinforced asphalt concrete pavement; cutting of asphalt concrete pavement; grouting of asphalt concrete pavement. Compared with the prior art, the method of the present invention is not only highly operable, convenient and reliable, but also effectively reduces cracking of the pavement due to various reasons. The permanent and temporary combined roads at the construction site save a series of costs such as demolition and reconstruction, and the maintenance cost of the pavement in the later stage is also greatly reduced. Since the existing pavement is used as the base layer of the new pavement, the construction period is shortened. Compared with cement concrete pavement, the dust suppression and noise reduction functions of asphalt pavement are significantly improved, which has a better effect on protecting the surrounding environment.

The invention belongs to the technical field of steel bridge pavement, and particularly discloses a high-viscosity asphalt double-layer SMA pavement layer structure and a construction technology thereof. The high-viscosity asphalt double-layer SMA pavement layer structure comprises an upper pavement layer, a waterproof bonding layer and a lower pavement layer, the upper pavement layer is laid on the lower pavement layer, the upper pavement layer comprises fine aggregate, limestone powder, modified asphalt, basalt fibers and a Wenn glue mixture, the thickness of the upper pavement layer is 35-40 mm, and the thickness of the waterproof bonding layer is 10-20 mm. The waterproof bonding layer comprises modified asphalt, epoxy resin, a silane coupling agent, a curing agent, a curing accelerator, butadiene styrene rubber, a silane coupling agent and talcum powder, the thickness of the waterproof bonding layer is 0.5-1 mm, and the lower pavement layer comprises coarse aggregate, modified asphalt, acrylonitrile-butadiene-styrene copolymer, porous ceramic particles, rubber particles, calcium stearate and waterborne polyurethane. And the thickness of the lower paving layer is 10-15mm. Various raw materials are mixed, so that the strength and durability of the pavement layer structure are improved, and the service life of the pavement is prolonged.

The invention relates to the technical field of road engineering, in particular to a reinforced concrete stiffening dense rib pile supporting post-tensioning method prestressed road and a construction method. According to the overall technical scheme, dense rib pile multilateral wing beam pile head integrated design is adopted, pile sinking is conducted through a steel casing guide soil squeezing static pressure method, longitudinal and transverse crossed flat and hidden beams cooperatively bear, butt joint steel bars are connected through a full grouting sleeve grouting method, post-tensioning method unbonded prestressed tendon perforation laying is conducted, and double-I-beam pedestal bearing prestress applying and anchoring are conducted; according to the principle of reinforcing the bearing effect of road structure group piles through reinforcing meshes, the rapid mounting and dismounting process of aluminum molds and comprehensive pavement of asphalt concrete surface layers, the bearing capacity of the road structure is improved, the stability and durability are enhanced, meanwhile, the construction efficiency is optimized, and the follow-up maintenance cost is reduced.

Structural cell formwork, cells and matrices using the structural cells for positioning below a hardscape that define a void space therein, the structural cell formwork, cells, matrices using the cells and methods of assembly allowing in one embodiment the introduction of a structural fluid such as concrete to provide an alternative structural cell and matrix product.

The application relates to the technical field of municipal construction, and discloses a sponge type road paving structure which comprises a water permeable layer, a filter layer arranged below the water permeable layer, a drainage layer arranged below the filter layer, a base layer arranged below the drainage layer, a water storage groove arranged on the base layer, a pipeline arranged in the water storage groove, an arched pressure bearing plate arranged on the base layer, the pressure bearing plate being arranged above the water storage groove, the pressure bearing plate being in contact with the drainage layer, a support structure arranged on the bottom wall of the water storage groove and used for supporting the pressure bearing plate, and a drainage pipe arranged in the water storage groove, so that the service life of the road is prolonged.

The anti-rut environment-friendly reinforcing structure comprises a main body unit, the main body unit comprises a glass fiber geogrid, first glass fiber strips are fixed to the two sides of the glass fiber geogrid respectively, and mounting grooves are formed in the first glass fiber strips; a connecting assembly used for connecting every two adjacent glass fiber geogrids is arranged between every two adjacent glass fiber geogrids. When the adjacent glass fiber geogrids are connected and fixed, firstly, the connecting belts penetrate through the corresponding mounting grooves, then the connecting belts are turned over, and the first rough surfaces and the first hook surfaces are bonded, so that the two adjacent glass fiber geogrids are connected and fixed, and the multiple glass fiber geogrids can be connected together; and then the rough surfaces II and the hook surfaces II on the glass fiber strips IV are bonded, and the rubber columns are embedded into the consolidation holes, so that the firmness between the adjacent glass fiber geogrids is further improved, and the road holding force can also be improved by the rubber cones I and the rubber cones II.

The invention discloses a railway asphalt crossing laying method, and relates to the technical field of railway crossings. The method comprises the steps of firstly excavating a foundation pit in a crossing area; then, concrete is poured in the foundation pit to serve as a concrete cushion layer; after the concrete cushion layer is cured, a reinforcing mesh is laid on the concrete cushion layer; then, a sleeper is laid on the reinforcing mesh; then, connecting a steel rail on the sleeper; thirdly, concrete filler is poured into the gaps between the concrete cushion layer and the reinforcing mesh and between the concrete cushion layer and the sleeper in the foundation pit till the concrete filler reaches the bottom of the steel rail; and after maintenance of the concrete filler is finished, asphalt filler is laid on the periphery of the steel rail in the foundation pit. According to the railway asphalt crossing laying method, the railway asphalt crossing obtained through the laying method has the advantages of being good in stability, high in bearing capacity and short in construction period, and the problems that an existing railway crossing is poor in stability, long in construction period or insufficient in bearing capacity are effectively solved.

The utility model discloses an egg support type friction nanometer power generation pavement plate, the power generation principle of the plate is friction power generation and electrostatic induction coupling effect, current is generated through electron transfer generated by interaction between polar materials, and the purpose of pavement power generation is achieved. The plate at least comprises three structural layers, namely a compression-resistant protective layer, a friction nano power generation layer and a high-strength bearing layer from top to bottom, wherein the friction nano power generation layer is provided with a multi-layer egg support type insulating plate, a metal electrode layer, two friction surfaces which are attached to the friction nano power generation layer and have opposite polarities, an elastic support body and a rectifying circuit layer connected with the metal electrode layer. The utility model relates to a pavement plate with a function of collecting pavement vibration energy, which is arranged between a surface layer of a newly-built pavement and a structural layer or between structural layers of an existing pavement, and generates electric energy through a contact-separation friction process of a friction nanometer power generation layer under the action of vertical force and horizontal force generated by wheel load. And the application potential is wide.

The invention provides a reusable full-prefabricated assembly type shortcut which comprises a plate assembly and a sleeper beam assembly arranged below the plate assembly, the plate assembly comprises a left side edge plate, a right side edge plate and a middle plate, and a road middle plate is arranged between the left side edge plate and the right side edge plate. The sleeper beam assembly comprises edge sleeper beams on the two sides and at least one middle sleeper beam arranged in the middle, and embedded steel bars are arranged on the inner peripheries of the edge sleeper beams and the middle sleeper beams. Steel pipe sleeves are arranged on the inner peripheries of the front sides and the rear sides of the left side edge plate, the road middle plate and the right side edge plate, the number of the steel pipe sleeves is consistent with that of the embedded steel bars, the steel pipe sleeves are inserted in one-to-one correspondence, and splicing seams of the edge sleeper beams and the middle sleeper beams and splicing seams of the road middle plate, the left side edge plate and the right side edge plate are transversely staggered. The prefabricated assembly technology is adopted, the number of plate standard parts is small, transportation and installation are convenient, recycling can be achieved, and the method is widely applied to various temporary roads or construction roads.

The utility model relates to the field of plastic runways, and discloses a combined type plastic runway buffer structure which comprises a supporting assembly and a positioning assembly, the positioning assembly is installed at the bottom of the supporting assembly, the supporting assembly comprises a bottom plate and a waterproof film, the top of the waterproof film is coated with a bonding layer, and the bonding layer is arranged on the bottom plate. Sealing sleeves are connected to the positions, close to the two sides, between the bottom plate and the waterproof film, the top of the bottom plate is filled with an elastic plastic layer, the top of the elastic plastic layer is filled with a rubber particle layer, and a plurality of rubber columns are installed in the elastic plastic layer and the rubber particle layer in a penetrating mode. The rubber columns are sealed, so that the overall buffering is improved, external moisture is prevented from entering, and the expansion can be adapted in the buffering process; and through the grating plate and the leveling layer, the adhesive force of the grating plate is increased, overall supporting and fixing are improved, and separation caused by sliding between the grating plate and the ground is prevented.

The utility model discloses an airport concrete pavement dowel bar flat seam template which comprises fixing feet, a supporting frame body, a template body, a dowel bar and a dowel bar fixing piece, a bar piece bracket is welded to the rear side of a reserved through hole in the template, the pre-burying distance of the dowel bar is convenient to control, meanwhile, an easily-demoulded ring piece is arranged on the casting face side of the dowel bar, and the dowel bar fixing piece is fixed to the template body. The template at the dowel bar part can be easily removed, the damage of the concrete at the dowel bar part caused by the removal of the template is prevented, the overall quality of the concrete pavement is improved, and the dowel bar fixing part is arranged on the rear side of the template, so that the displacement of the rod piece caused by the influence of external factors such as mechanical equipment running and concrete vibration is prevented; the stability of the mounting position of the dowel bar in the concrete pouring period is ensured, the dowel bar is located at the position required by a design drawing from beginning to end, the dowel bar is stressed more uniformly in the runway operation period, and the anti-shearing force caused by resisting aircraft collision is enhanced.

The utility model relates to the technical field of pavement structures, in particular to a compression-resistant pavement structure which comprises a base layer, a pavement mechanism is mounted at the top end of the base layer and comprises a concrete layer, the concrete layer is positioned at the top end of the base layer, and a gravel layer is connected above the concrete layer. A gravel layer is filled between the gravel layer and the concrete layer, a pressure-resistant mechanism is connected to the interior of the pavement mechanism, the pressure-resistant mechanism comprises a pressure-resistant steel frame, the pressure-resistant steel frame is connected between the gravel layer and the concrete layer and is filled with a gravel layer, and reinforcing ribs are fixedly connected to the periphery of the outer wall of the pressure-resistant steel frame. A supporting column is fixedly connected to the inner wall of the compression-resistant steel frame and penetrates from the bottom end of the compression-resistant steel frame to the top end of the compression-resistant steel frame. According to the utility model, the internal structures of the pavement mechanism and the compression-resistant mechanism are matched with each other, so that the overall compression-resistant performance of the pavement can be improved, and the later maintenance cost is reduced.

A modular roadway foundation structure addresses the problems of long construction periods, high costs, difficulty in ensuring road quality, and inconvenient management inherent in existing technologies. It includes a roadway base foundation with several sets of basic roadway modules arranged sequentially to form the roadway. Municipal pipelines are installed within the roadway base foundation. Drainage curbs and water collection pipes are installed on both sides of the roadway, with the water collection pipes connected to the municipal pipelines via diversion lines. Above the roadway composed of the basic roadway modules, a stabilizing layer membrane, a protective layer membrane, and an asphalt concrete membrane are laid layer by layer. Its design is reasonable and compact, allowing for rapid assembly, easy installation and laying, effectively solving the problem of long road construction periods. The dismantled materials can be recycled and reused, reducing solid waste pollution, and facilitating the installation, maintenance, and upgrading of underground pipelines.

The utility model discloses a semi-flexible pavement structure which comprises a surface layer, a foundation is arranged below the surface layer, a ground pile is installed at the top of the foundation, a cushion layer is arranged above the ground pile, a reinforcing structure is installed in the cushion layer, and the reinforcing structure comprises reinforcing ribs arranged in the cushion layer, and a reinforcing layer arranged in the cushion layer, and the connecting plate is fixedly connected to the bottom of the reinforcing rib. The utility model relates to the technical field of pavement structures, through the cooperation of the reinforcing rib, the connecting plate and the supporting column, the supporting column and the fixing frame are used for supporting the reinforcing rib and the connecting plate, the reinforcing rib and the connecting plate are fixed at the top of a ground pile, the pavement is more convenient to lay, and when the pavement is influenced by the environment temperature, the pavement is not damaged. And the stability of the pavement is not reduced.

The utility model relates to the technical field of environment-friendly bricks, and discloses a water-permeable environment-friendly brick which comprises a brick body, an upper surface layer is fixedly connected to the top of the brick body, a lower bottom layer is fixedly connected to the bottom of the brick body, a reinforcing device is fixedly connected to the interior of the brick body, and a drainage device is fixedly connected to the interior of the brick body. A fixing rod is fixedly connected to the interior of the brick body, a first reinforcing rib is fixedly connected to the side face of the fixing rod, and a second reinforcing rib is fixedly connected to the side face of the first reinforcing rib. The silicon dioxide coating on the upper surface layer increases the hardness and anti-pollution capacity of the surface of the brick body, the design of the clamping grooves and the clamping blocks on the lower bottom layer facilitates splicing and fixing of the water-permeable environment-friendly bricks, impurities are effectively prevented from entering the brick body through the arrangement of the water-permeable layer and the filtering layer, and smoothness of water flow is guaranteed.

The utility model discloses a pavement reinforced net structure, and relates to the related technical field of pavement construction. Comprising a twisted-pair steel wire mesh surface, a reinforced rod and a limiting steel wire, an interpenetrating gap is formed in the twisting part of the twisted-pair steel wire mesh surface, the reinforced rod is inserted into the twisted-pair steel wire mesh surface through the interpenetrating gap, external threads are arranged at the two ends of the reinforced rod, and the reinforced rod is in threaded connection with a fastening nut and a limiting nut in sequence through the external threads. Bending parts are arranged at the two ends of the limiting steel wire. According to the road surface reinforced net structure, the fastening nuts and the limiting nuts are installed at the two ends of the reinforced rods in a threaded mode, the positions of the reinforced rods can be fixed, meanwhile, the arranged limiting steel wires can reinforce limiting of the reinforced rods, and compared with a conventional metal reinforced net, the anchoring performance of a net face structure and an asphalt surface layer can be effectively improved; the problems of insufficient anchoring performance such as thread slipping and thread falling in the long-term use process are avoided, and the use performance of the asphalt pavement is improved.

A crack-resistant basalt fiber asphalt pavement structure, relating to the technical field of road paving structures, and comprising a cement stabilized macadam base layer and a pavement layer disposed on the upper side of the cement stabilized macadam base layer. A macadam seal coat (3) is disposed between the cement stabilized macadam base layer and the pavement layer, and the macadam seal coat (3) comprises a sand and gravel aggregate layer (6), an upper asphalt layer (7), a basalt fiber layer (8), and a lower asphalt layer (9) which are sequentially disposed from top to bottom, wherein the outer diameter of sand and gravel particles of the sand and gravel aggregate layer (6) is smaller than that of sand and gravel particles of the pavement layer. The macadam seal coat (3) is disposed between the cement stabilized macadam base layer and the pavement layer, and the macadam seal coat (3) is like a high-elasticity and high-strength mesh structure for buffering between the cement stabilized macadam base layer and the pavement layer, so that cracks generated in the cement stabilized macadam base layer are prevented from expanding upward, thereby improving the fatigue resistance of the pavement structure layer.

The application is a riveting nail fixed network soft surface layer plastic track, which comprises a plastic mixture layer formed by uniformly mixing plastic mixture, a shaped buffer layer is arranged in the plastic mixture layer, the shaped buffer layer and the plastic mixture in the middle and upper and lower layers are mutually glued into a sheet-shaped composite layer, and the shaped buffer layer is anchored on the ground layer together with the whole composite layer through an anchoring part. The application retains the physical and mechanical properties of the original material, improves the tensile and impact strength, and improves the durability of bending and resilience, avoids the fracture and fragmentation of the soft surface layer plastic material, rivets the grid net with plastic mixture on the ground layer by using the plastic riveting nail, avoids the curling and angle problems caused by degumming, greatly prolongs the service life of the soft plastic material, expands the application, and facilitates the development of new products in various application scenarios.

This utility model relates to the field of silicone PU sports court technology, specifically to a silicone PU composite sports court. Addressing the technical shortcomings of existing rigid reinforcement schemes that hinder material synergistic deformation, induce stress cracks, and create water seepage channels, this utility model employs a structural scheme where a foundation trench is created at the edge of the concrete base, with an array of barbs pre-set on the four walls of the trench. During the pouring of the silicone PU elastic layer, the flow wraps around the barbs, forming a three-dimensional interlocking body. Combined with the molecular-level penetration bonding layer at the bottom of the trench, a physical-chemical dual anchoring system is constructed. The spatial constraint effect of the foundation trench enhances the overall structural integrity, while maintaining the coordination of expansion and contraction during synergistic deformation. This design disperses peeling stress through mechanical interlocking, blocks water seepage paths, and eliminates stress abrupt changes caused by metal components, achieving a simultaneous improvement in edge peel strength and deformation adaptability, ensuring the long-term functional integrity of the sports court boundary.

The utility model relates to the technical field of temporary paving tools for road passage, and discloses a quickly deployed roadbed plate, which comprises two polymer plate bodies, protective components for reinforcing the polymer plate bodies are fixedly connected in the polymer plate bodies, the top of one of the polymer plate bodies is fixedly connected with a connecting plate, and the top of the other polymer plate body is fixedly connected with a base plate. Wherein a splicing groove is formed in the top of the left side of one polymer plate body, a clamping assembly for splicing the device is fixedly connected to the right side of one polymer plate body, positioning plates are fixedly connected to the front end and the rear end of the left side of one polymer plate body, and stabilizing columns are fixedly connected to the tops of the positioning plates. According to the utility model, the construction time can be saved, the engineering efficiency is improved, the project progress is not influenced, stable support can be provided for large-scale equipment in time, the construction safety is ensured, the human input and the labor intensity are reduced, meanwhile, the storage is convenient, and the storage space is saved.