1756results about "Paving gutters/kerbs" patented technology

The utility model relates to the technical field of road construction, in particular to a temporary traffic road for road construction. The multiple supporting rods are connected with the passing panel, the multiple supporting rods are all located on the same side of the passing panel, and a receding cavity is formed between every two adjacent supporting rods; the supporting bottom plate is located on the side, away from the passing panel, of the supporting rod, and the supporting bottom plate is connected with the supporting rod; a temporary supporting surface can be provided for vehicle passing through the passing panel, and the passing panel can be separated from the ground through the supporting rods, so that the passing panel is kept horizontal with the original road surface, and the structural strength of the passing panel is improved; the supporting bottom plate can be matched with the passing panel and the multiple supporting rods to form a stable hollow structure, noise generated when a vehicle passes through is reduced, and the receding cavity can be formed so that a forklift arm of a forklift can stretch into the receding cavity to achieve the effect of carrying and transferring.

The invention provides a solid waste-based cementing material and a preparation method thereof, and relates to the technical field of solid waste resource utilization and cementing material preparation. The cementing material is prepared by mixing and grinding 60-80 parts by weight of modified phosphogypsum and 20-40 parts by weight of an auxiliary material, and the auxiliary material comprises at least one of steel slag powder, fly ash, lithium slag and mineral slag; a preparation method of the modified ardealite comprises the following steps: carrying out microwave treatment on ardealite for 0.5-1 hour, mixing the treated ardealite with aluminum oxide, attapulgite and sodium lignosulphonate, adding a tetramethylammonium hydroxide solution, and drying to obtain the modified ardealite. According to the solid waste-based cementing material disclosed by the invention, the phosphogypsum is modified, so that the solid waste-based cementing material has the characteristics of high strength, stable cementing, strong erosion resistance and the like while the mixing amount of the phosphogypsum is increased.

The preparation method of the cement concrete curb based on the multi-stage activated waste asphalt milling material comprises the following steps: gradient crushing and screening: coarsely crushing RAP by a jaw crusher until the particle size is less than or equal to 20mm, finely crushing the RAP by a vertical shaft impact crusher until the particle size is less than or equal to 10mm, and then carrying out vibration screening and airflow separation to obtain an RAP powder; and separating to obtain coarse aggregate of 5-10 mm, fine aggregate of 2-5 mm and active powder of less than 0.075 mm. Through the synergistic effect of the nano SiO # imgabs0 # and the silane coupling agent, a siloxane net structure is formed on the surface of RAP, and chemical bonding of a cement hydration product and old asphalt is promoted; low-carbon economy is achieved, the RAP mixing amount reaches 85%, the cement consumption is reduced by 50% compared with that of traditional concrete, and the emission of CO # imgabs 1 # is reduced by 58%.

The invention discloses an expansive soil roadbed drainage anti-seepage structure and a construction method, and relates to the technical field of expansive soil roadbed construction.The expansive soil roadbed drainage anti-seepage structure comprises a roadbed body and geotechnical cloth and further comprises a laying mechanism arranged on a moving vehicle and used for laying the geotechnical cloth, and the laying mechanism comprises an L-shaped plate slidably connected to the moving vehicle; the end, away from the moving trolley, of the L-shaped plate is connected with a U-shaped frame, the U-shaped frame is rotationally connected with a rotating shaft, the geotechnical cloth is wound around the rotating shaft, and a first motor used for driving the rotating shaft to rotate is arranged on one side of the U-shaped frame. According to the expansive soil roadbed drainage anti-seepage structure and the construction method, through the arrangement of the laying mechanism, an operator does not need to conduct manual laying operation on the inclined side wall of the side ditch, then the safety of geotechnical cloth laying is improved, and meanwhile under the cooperation effect of the pressing assembly and the driving assembly, the anti-seepage performance of the side ditch is improved.

The invention discloses a preparation process of a Yellow River deposited sand high-strength cement-based curb material, which comprises the following steps: (1) adding mixed powder formed by pseudo-wollastonite powder and glass powder into wet chopped basalt fibers to obtain pretreated basalt fibers; and (2) carrying out heat treatment on the pretreated basalt fiber and coal gangue powder to obtain pretreated coal gangue powder and modified fiber for later use. And (3) wetting the modified fiber by using a tannic acid saturated solution, and carbonizing in a carbonization box containing carbon dioxide and water vapor to obtain the carbonized modified fiber. And (4) taking cement powder, gravel coarse aggregate, Yellow River deposited sand, fly ash, carbonized modified fiber, a water reducing agent and the like as raw materials. The preparation method comprises the following steps: uniformly mixing the raw materials, adding mixing water and uniformly mixing. According to the invention, the mechanical strength of the curb is effectively improved by adopting the fibers which have good bonding capacity with the curb matrix, and the application of the yellow river deposited sand is promoted.

The invention relates to the technical field of recycling of renewable resources, in particular to an asphalt pavement milling material cold-recycled prefabricated part and a preparation method, and the asphalt pavement milling material cold-recycled prefabricated part is prepared from the following raw materials in parts by weight: 45 to 53 parts of waste pavement milling material with the particle size of less than 4.75 mm, 19 to 27 parts of waste pavement milling material with the particle size of 4.75 to 9.5 mm, 20 to 28 parts of stone chips, 1 to 1.4 parts of mineral powder, 1.6 to 2.0 parts of silica fume, 4.6 parts of water, 2.3 to 2.7 parts of cement and 2.3 to 2.7 parts of foamed asphalt. According to the invention, the waste asphalt pavement milling material is used as the raw material of the concrete prefabricated component, so that the resource is saved, the utilization rate of the asphalt milling material is increased, and the green development concept is met; the prefabricated parts are manufactured through a cold regeneration process, compared with a traditional hot mix plant regeneration process, energy is saved, environment friendliness is achieved, emission of greenhouse gas is reduced, and therefore the problems that the hot mix plant regeneration mode is high in cost and carbon emission are solved.

A curb stone or paving stone charging device for charging an energy store of an electrically driven vehicle. The curb stone or paving stone charging device includes a main body, an inner receiving space which is delimited on a plurality of sides by the main body, a cover which closes the receiving space, a charging unit having components which are arranged in the receiving space, a charging socket which is connected mechanically at least indirectly to the cover, and a heating element which heats the cover. The main body is produced from a metal, a concrete, a natural stone, a plastic or a composite material.

The utility model discloses a novel self-locking straight-through hole water permeable brick which comprises a water permeable brick body, and the cross section of the water permeable brick body is of a rectangular structure. The number of the first splicing grooves is two, and the two first splicing grooves are symmetrically formed in the two opposite side faces of the top face of the water permeable brick body; two groups of second splicing grooves are symmetrically formed in the bottom surfaces of the water permeable brick main bodies, and the first splicing grooves and the second splicing grooves of the adjacent water permeable brick main bodies are correspondingly arranged; a plurality of groups of water permeable holes are arrayed on the water permeable brick main body, and the axes of the water permeable holes are parallel to the height direction of the water permeable brick main body; the flow guide grooves are respectively formed in the top surface and the bottom surface of the water permeable brick main body, and the adjacent water permeable holes are communicated through the flow guide grooves; the lengths of the first diversion trench and the second diversion trench are equal and are half of the length of the water permeable brick main body. According to the utility model, the plurality of water permeable brick main bodies form an occlusion effect, so that the splicing stability is ensured, meanwhile, the splicing is simple, and the construction difficulty is low.

A permafrost roadbed side ditch structure comprises a permafrost base layer, a roadbed base layer and a roadbed surface layer are sequentially arranged on the permafrost base layer, the permafrost roadbed side ditch structure further comprises a foundation trench, a rigid partition plate set and a side ditch body, the foundation trench is supported on the permafrost base layer, the foundation trench is filled with an inverted filter layer, a drainage pipe is arranged in the inverted filter layer, and the rigid partition plate set comprises an outer side partition plate and an inner side partition plate. The outer side partition plate is arranged on the inverted filter layer, the inner side partition plate is fixedly arranged on the frozen soil base layer and attached to the side walls of the roadbed base layer and the roadbed surface layer, a plurality of water seepage holes are formed in the inner side partition plate, a plurality of capillary tubes extending in the height direction are arranged between the inner side partition plate and the outer side partition plate, and the lower ends of the capillary tubes extend to the inverted filter layer. A sand and gravel piling layer is arranged on the inverted filter layer, and the side ditch body is supported on the sand and gravel piling layer and connected with the top of the outer side partition plate. The structure is simple, the construction is convenient, and the long-time normal use of the frozen soil roadbed can be ensured.

The invention relates to a concrete block in the form of a planar element that can be laid in combination in order to create a paving. The concrete block has at least one multi-layer concrete block body having at least one concrete-block lower face suitable for being laid on a foundation layer of an underlying surface, and a concrete-block upper face opposite thereto. The multi-layer concrete block body has at least one first concrete-block layer disposed on the concrete-block upper face and in the form of a face concrete layer, at least one second concrete-block layer in the form of a core concrete layer, as well as a third concrete-block layer. The second concrete-block layers is disposed between the first and the third concrete-block layer. The third concrete-block layer has an increased tensile strength.

The utility model discloses a road slope earth shoulder drainage system which comprises a water outlet piece, an earth shoulder vertical curb water blocking belt, a transverse drainage pipe assembly, a longitudinal drainage pipe and a base. The water outlet piece and the earth shoulder vertical curb water blocking belt are arranged on the edge of a highway pavement and used for collecting water in a centralized mode. The base is embedded in a side slope; the longitudinal drainage pipe is arranged on the base, and the longitudinal drainage pipe is longitudinally arranged in the advancing direction of a road; one end of the transverse drainage pipe assembly is connected with the water outlet piece and the earth shoulder vertical curb water blocking belt, and the other end of the transverse drainage pipe assembly is connected with the longitudinal drainage pipe. The longitudinal drainage pipe is provided with a plurality of sections, and the plurality of sections of the longitudinal drainage pipe are communicated with one another and finally communicated to a rain sewage outlet point. The drainage ditch is suitable for the conditions that drainage of a highway embankment drainage ditch arranged by utilizing gravity flow is unsmooth, natural water systems on the ground surface are deficient or land use is limited and the like; according to the utility model, fewer water outlet points of a natural water system can be reasonably utilized to form a complete drainage system.

The invention discloses a shallow layer water-permeable regulation and storage device which comprises a water-permeable paving unit which comprises a plurality of uniformly arranged water-permeable paving bricks and a water-permeable supporting grating fixedly paved on the lower sides of the water-permeable paving bricks; the shallow-layer regulation and storage unit comprises a shallow-layer regulation and storage pond arranged under the water-permeable supporting grid and a water-permeable supporting plate laid in the shallow-layer regulation and storage pond, and a plurality of sets of evenly-distributed supporting pieces are erected on the lower side of the water-permeable supporting plate and the inner wall of the lower side of the shallow-layer regulation and storage pond; the upper side wall of the water-permeable supporting plate is clamped with the water-permeable supporting grating through a plurality of groups of uniformly distributed supporting pieces; a shallow layer water-permeable regulation and storage method comprises the following steps that S1, during rainfall, rainwater penetrates through water-permeable paving bricks and enters a shallow layer regulation and storage pond, water in the shallow layer regulation and storage pond flows into a water purification tank, and the rainwater is collected. The water-permeable paving bricks do not need to be disassembled, the regulation and storage space module is automatically cleaned, and the cleaning step of the regulation and storage device is simplified.

The road curb capable of draining and irrigating comprises a curb body, and a water guide channel penetrating through the two side faces of the curb body in the length direction of the curb body is formed in the curb body. A plurality of road side drainage holes communicated with the water guide channels are formed in the road side face of the curb body at intervals in the length direction, and a plurality of greening side drainage holes communicated with the water guide channels are formed in the greening side face of the curb body at intervals in the length direction. A filtering structure is arranged in each road side drainage hole and / or each greening side drainage hole. The device has the advantages of improving the road drainage capacity, prolonging the service life of the road, saving energy, protecting environment, being easy to install and maintain, wide in application range and the like. Therefore, the utility model has wide application prospect and popularization value in the field of road construction.

The invention discloses an ecological rainwater garden, and relates to the technical field of rainwater gardens, and the ecological rainwater garden comprises a kerb, a water storage system, a drainage system and a planting system; the curb is arranged on a road, and a drainage ditch and a foundation pit are formed in the road; the water storage system comprises a water storage tank; a water storage space is formed in the water storage tank; the drainage system comprises a drainage part and a floating part; the planting system comprises a planting layer, a sandy soil layer, a gravel layer and a water storage layer; the planting layer, the sand soil layer and the gravel layer are distributed from top to bottom in the space, located above the water storage tank, of the foundation pit in the vertical direction, and the particle sizes of the planting layer, the sand soil layer and the gravel layer are gradually increased; the water storage layer fills the space, located below the water storage tank, of the foundation pit and is used for storing water. The device can effectively help to eliminate accumulated water on the road surface, rainwater is purified and filtered to be effectively utilized, and meanwhile the survival rate of plants can be effectively guaranteed.

A system for controlling animal pests that is to be used on roads through a module forming part of a sidewalk that has at least one entry for animals to access an inner chamber of the module, this chamber being configured to contain poison, a placebo and / or traps for the animal pests to be treated.

The invention provides an anti-waterlogging drainage structure for a village in city low-lying area. The anti-waterlogging drainage structure comprises a porous permeable drainage layer and a water storage permeation unit. The surface of the porous water-permeable drainage layer is in a micro-slope design, and a porous pipeline is embedded in the porous water-permeable drainage layer, can be arranged in the slope direction or in the direction perpendicular to the slope direction and is connected to an external drainage system. The water storage permeation unit comprises an upper permeation area and a lower water storage area, and the upper permeation area is filled with sandy soil and permeable vegetation and used for slowing down the flow velocity of rainwater and filtering impurities. The lower layer water storage area is provided with a hollow structure, and the hollow structure is connected with an external irrigation system and used for storing and recycling rainwater. According to the anti-waterlogging drainage structure for the village in city low-lying area, the pressure of a drainage system can be remarkably reduced under the rainstorm condition, meanwhile, a water source is provided for follow-up irrigation, and compared with a traditional single drainage or water storage structure, the higher comprehensive management efficiency is achieved, and the higher rainwater storage and staged treatment capacity is achieved.

The invention discloses permeable mortar based on building waste composite ardealite and a preparation method of the permeable mortar. The mortar is prepared from the following components in parts by weight: 4 to 8 parts of 1.18 to 2.36 mm modified recycled aggregate, 16 to 22 parts of 2.36 to 4.75 mm modified recycled aggregate, 2 to 4 parts of cement, 2 to 4 parts of ardealite, 2 to 3 parts of water, 3 to 5 parts of microcapsules and 1 part of water reducing agent. According to the water-permeable mortar prepared by the invention, uniform distribution of C-S-H gel and ettringite is promoted through a multi-layer process synergistic effect, so that the microstructure is optimized, the later mechanical strength, durability and water permeability are improved, the setting time can be prolonged, the construction performance is ensured, the industrial requirements can be met, and the paving quality of ground materials such as water-permeable bricks is improved. According to the method, the resource utilization value of the building solid waste and the industrial byproduct gypsum is effectively improved, the production cost and the energy consumption can be remarkably reduced, a new technical path is provided for development of green building materials, reduction and resource application of the phosphogypsum and the building waste are achieved, and the method has a good application prospect.

The invention provides a building solid waste regenerated brick and a preparation process thereof, belongs to the technical field of regenerated brick preparation, and solves the technical problems of low production automation degree, low preparation efficiency and the like of existing regenerated bricks. The regeneration brick comprises a square brick body, the two adjacent sides of the upper end of the square brick body are each provided with a lower wedge-shaped splicing plate and a wedge-shaped stop block, each lower wedge-shaped splicing plate is provided with two lower wedge-shaped grooves, the lower end of the square brick body is provided with a plurality of draining protrusions, the two adjacent sides of the lower end of the square brick body are each provided with an upper wedge-shaped splicing plate, and the upper wedge-shaped splicing plates are provided with a plurality of lower wedge-shaped grooves. An upper wedge-shaped groove and an upper blocking groove are formed in each upper wedge-shaped splicing plate. The preparation process comprises the following steps: entering the construction waste into a site; crushing and grading the raw materials; preparing materials; performing compression molding; performing steam curing; the regenerated brick is prepared through the technological processes of construction waste entering, raw material crushing and grading, burdening, compression molding and steam curing, the preparation process is high in automation degree and preparation efficiency, and the prepared regenerated brick is stable in structure and high in water permeability.

A paver system for paving a surface is provided. The paver system includes a plurality of cells interconnected to form a grid. The cells generally include six walls to form a hexagonal shape. The cells share at least two walls with adjacent cells, wherein the grid is arranged having parallel rows and columns of cells defining a parallelogram shaped grid. The grid defines four sides, wherein adjacent sides are not at a right angle, wherein select cells may have one or more walls which include a flexible expansion node, and wherein the cells are adapted to receive a filler.

The invention relates to the technical field of road engineering, in particular to a municipal road drainage system which comprises a road surface, a buffering and shunting module and a storage and drainage module. Rainwater is guided to gather towards the V-shaped water collecting groove through the water permeable holes in the inclined face of the stainless steel protection inclined plate, large-particle impurities are intercepted, the water flow resistance is reduced through the hydrophobic layer on the inner wall of the V-shaped water collecting groove, rainwater flowing is accelerated, and the water collecting efficiency during rainstorm is improved; the rough filtering layer, the middle filtering layer and the fine filtering layer in the trapezoidal filtering cavity form a multi-stage filtering system, impurities are intercepted, heavy metal ions are adsorbed, fine suspended solids are removed in sequence, the rainwater purification effect is improved, and the trapezoidal section of the trapezoidal filtering cavity with the narrow upper portion and the wide lower portion can enable a water flow path to be gradually enlarged from top to bottom. The method is consistent with the classification filtering concept of coarse filtering-fine filtering in the file, large-particle impurities can be preliminarily precipitated in the top area with the high flow speed, fine particles can be further precipitated in the bottom low-speed area, and the overall precipitation filtering efficiency is improved.

The invention discloses a preparation method of low-alkali plant-growing concrete with full-dosage phosphogypsum and recycled aggregate, and belongs to the technical field of resource utilization of industrial solid waste and building solid waste and ecological building materials. The low-alkali plant-growing concrete containing the full-dosage phosphogypsum and the recycled aggregate is prepared from the following raw materials in parts by weight: 180 to 190 parts of semi-hydrated phosphogypsum, 1365 to 1375 parts of the recycled aggregate, 55 to 65 parts of cement, 17 to 22 parts of fly ash, 0.4 to 0.6 part of a water-retaining agent, 32 parts of electrolytic manganese residues and 0.8 to 1.2 parts of a water reducing agent. The low-alkali plant-growing concrete prepared by the invention realizes full utilization of solid wastes, construction of a low-alkali environment and cooperation of a suitable pore structure and plant nutrition supply, and the comprehensive performance meets ecological engineering requirements.

The present invention discloses a sponge city road, which relates to an urban road and solves the problem of a large amount of water accumulation on the road after a water grate is blocked by a large number of leaves or debris. The main points of the technical solution are: it comprises a road surface, a curb, a water grate, and a rainwater pipe, a mounting port for installing the water grate is provided on one side above the rainwater pipe, at least one drain port is provided in the center of the water grate, a grate plate is provided inside the drain port, a water storage tank is provided at the bottom of the grate plate, a plurality of drain holes are provided at the bottom of the water storage tank, a guide pipe is provided on the side of the water storage tank close to the water grate, an overflow port is provided at the upper end of the guide pipe, the overflow port is higher than the water grate, a floating plate is provided inside the water storage tank, a top rod is provided between the floating plate and the grate plate, and the top rod passes through the water storage tank and the rainwater pipe, so that the accumulated water and debris on the road surface can be quickly cleaned up, repeated drainage can be achieved without human intervention, and the purpose of preventing urban road waterlogging is achieved.

The utility model discloses a multi-slope control device in zigzag street ditch construction, which comprises a frame, the cross section of the frame in the left-right direction is E-shaped, the E-shaped frame is provided with a top edge, a left vertical edge, a right vertical edge and a middle vertical edge, the middle vertical edge and the right vertical edge enclose a translation sliding positioning groove, and the translation sliding positioning groove and a curbstone of a road are used for covering the middle upper part of the curbstone; the left vertical edge comprises a left front vertical edge and a left rear vertical edge; a longitudinal slope adjusting structure is connected between the left front vertical edge and the left rear vertical edge, is in sliding connection with a cross slope adjusting structure, and is used for restraining the gradient of the cross slope adjusting structure when the cross slope adjusting structure moves back and forth; the cross slope adjusting structure is used for controlling the cross slope gradient of the mortar leveling layer through the inclination angle of the cross slope adjusting structure and controlling the longitudinal slope gradient of the mortar leveling layer through the front-back moving gradient borne by the longitudinal slope adjusting structure, and the top face of the mortar leveling layer is flattened to the preset longitudinal slope gradient and the preset cross slope gradient at a time.

A double-cavity electronic device comprises a base unit and a mounting seat unit. The base unit is used for being arranged in a mounting groove of a road edge stone and comprises a lower cavity piece which defines a lower cavity and extends in the vertical direction and two connecting parts fixedly connected with the lower cavity piece. The mounting base unit is arranged on the upper side of the base unit and comprises an upper cavity piece which defines an upper cavity and extends in the vertical direction, an upper sealing cover arranged on the upper side of the upper cavity piece and two joined parts fixedly connected with the upper cavity piece. The lower chamber and the upper chamber are respectively defined by the base unit and the mounting seat unit, and the joined part can be movably arranged on the joining part to enable the upper bottom wall to close or be far away from the lower chamber, so that components in different chambers are easy to check or replace.

The utility model discloses a coast subgrade framework in the field of coast subgrades, which aims to solve the problem that a concrete wall is easy to corrode and crack under long-time erosion corrosion of seawater in the prior art, and comprises a stainless steel plate, a wave dissipation plate for buffering sea wave impact and a buffering component, the stainless steel plate is mounted on a coastal surface of a coast subgrade, and the buffering component is mounted on the coastal surface of the coast subgrade. The wave dissipation plates are arranged on the stainless steel plate, the buffering assembly is arranged between the stainless steel plate and the wave dissipation plates, the wave dissipation plates are sequentially arranged on the stainless steel plate, and the ends of every two adjacent wave dissipation plates are arranged in an overlapped mode. The wave dissipation plates are sequentially arranged on the adjacent sea surface of the coast roadbed, the ends of every two adjacent wave dissipation plates are overlapped, the hinge pieces are arranged, when the wave dissipation plates are impacted by sea water, the wave dissipation plates can rotate by a certain angle, the wave dissipation plates rotate to the overlapped parts close to the upper ends, the impact of the sea water is buffered through the two wave dissipation plates at the same time, and the wave dissipation effect is improved. The buffering effect is improved, and the service life of the wave dissipation plate can be prolonged.

The invention provides an elongated drain assembly, preferably an elongated shower drain assembly, which comprises a first drain element (11) comprising a first elongated tray (21) having a first fluid guiding surface (31) and a second drain element (12) comprising a second elongated tray (22) having a second fluid guiding surface (32), and a click connection (4) configured for connecting the first and second drain elements such that their first and second elongated trays adjoin each other to form a continuous elongated tray (2) having a smooth transition of the first and second fluid guiding surfaces The click connection comprises a male connector (5) protruding from a face end region (6) of the first elongated tray and a female connector (7) formed at a face end region (8) of the second elongated tray and configured for inserting therein the male connector in a longitudinal connection direction (CL). The click connection comprises a snap-in pin arrangement and a corresponding snap-in hole arrangement, one of them provided on the male connector and the other provided on the female connector. The male connector and / or the female connector is formed from a resilient sealant material (SM) at least in a region adjoining the transition of the first and second fluid guiding surfaces, and / or the female connector is formed by a C-shaped profile (11) with a central side providing a part of the second fluid guiding surface, narrow sides adjoining the central side, and back sides adjoining the respective narrow side. The snap-in pin arrangement or the snap-in hole arrangement is formed on at least one of the back sides of the female connector.

The utility model relates to the technical field of pavement construction, and discloses a pavement joint connecting device which comprises a foundation, and one side of the top of the foundation is fixedly connected with a first cement pavement. According to the pavement joint connecting device, through the arrangement of a fixing mechanism, a telescopic mechanism and reinforcing ribs, during connection, supporting plates are fixed to the two sides of a first cement pavement and the two sides of a second cement pavement through limiting columns correspondingly, and then extrusion plates are placed on the surfaces of the supporting plates; after a telescopic rod is adjusted to a proper length, a threaded rod on one side of the telescopic rod penetrates through extrusion plates and abuts against supporting plates, a nut on the threaded rod is rotated so that the extrusion plates can be extruded and fixed through the nut, and similarly, the supporting plates on the two sides can be supported by the two sets of extrusion plates through the same method on the other side; the reinforcing ribs fixed in the first cement pavement and the second cement pavement are matched, so that the strength of the gap joint can be effectively improved, and the phenomenon that the joint is loosened in the thermal expansion and cold contraction process of the gap joint is avoided.