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19results about How to "Solve construction difficulties" patented technology
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Moisturizing anti-cracking high-ductility concrete and preparation method thereof
ActiveCN119661164AIncreased durabilityStrong moisturizing abilitySolid waste managementFiberPortland cement
The invention relates to the technical field of concrete preparation, in particular to moisturizing anti-cracking high-ductility concrete and a preparation method thereof. The moisturizing anti-cracking high-ductility concrete is prepared from the following components: 350 to 450 parts of ordinary Portland cement, 200 to 300 parts of fly ash, 30 to 50 parts of silica fume, 250 to 350 parts of quartz sand, 0.5 to 1 part of a water reducing agent, 10 to 20 parts of an expanding agent, 0.1 to 0.3 part of a retarder, 0.5 to 1 part of a thixotropic lubricant, 0.2 to 0.7 part of a modified nano material, 0.7 to 3 parts of a modified composite curing agent, 5 to 10 parts of an anti-cracking agent, 5 to 12 parts of polymer fiber and 180 to 220 parts of water. The high-moisture-retention high-water-retention concrete has the characteristics of high moisture retention and high water retention, is beneficial to maintaining the internal humidity balance, reducing cracks generated by drying shrinkage, improving the durability of the concrete, and remarkably reducing the cracking risk of the concrete in the hardening process, so that the concrete structure is more complete, the safety of the structure is improved, and the service life of the structure is prolonged.
Owner:XINYA (LIAONING) NEW MATERIAL TECH CO LTD +1
Offshore single-pile structure foundation and construction method thereof
PendingCN119507459AImprove structural rigidityImprove stabilityProtective foundationWind motor supports/mountsSuction forceStructural rigidity
The invention discloses an offshore single-pile structure foundation and a construction method thereof, the offshore single-pile structure foundation is composed of a main pile, a suction barrel assembly and a grouting sealing cover, the outer part of the main pile is annularly sleeved with the suction barrel assembly, and the top of the suction barrel assembly is provided with the grouting sealing cover. The structural form that the variable-diameter single pile and the multi-subdivision annular suction barrel are combined is adopted, the advantages of extremely high vertical bearing of the single pile and horizontal reinforcing supporting of the suction barrel are fully played, the horizontal swing load resisting capacity of the single pile on the mud surface section is effectively improved, and the horizontal swing load resisting capacity of the single pile on the mud surface section is effectively improved through horizontal reinforcing of the external suction barrel structure. Meanwhile, the structural rigidity is improved, the stability is improved, and long-term use is stable and reliable; the independent center supporting sleeve is arranged in the middle of the suction barrel assembly, so that when a single pile is scoured, the inner ring of the suction barrel can avoid a scouring pit, self-sinking sealing is achieved without being affected, the suction barrel can smoothly sink to the designed depth, and the bearing requirement is met.
Owner:NEPTUNE OFFSHORE ENG DEV +1
Renewable concrete and production process thereof
PendingCN119638280Afast collection processingeffective protectionSolid waste managementDirt cleaningEnvironmental engineeringPlastic fiber
The invention relates to the technical field of renewable concrete, in particular to renewable concrete and a production process thereof, and the concrete is prepared from the following raw materials: recycled aggregate, waste plastic fiber, cement, an additive component and water, the production work comprises the following steps: recycling, crushing and classifying the building waste, crushing and grinding the building concrete waste and storing the building concrete waste as aggregate, screening and storing other materials required by concrete preparation, stirring and mixing, storing the concrete, and conveying the concrete into a mixer truck for transferring. By using the recycled aggregate and the waste plastic fiber, the waste building material and corresponding plastic can be effectively recycled and used, the environmental protection performance can be better improved, the waste material can be quickly solved, and the strength and performance of the product can be improved; and meanwhile, how to use each device and how to prepare the recycled concrete by workers are clearly indicated.
Owner:NINGXIA HUAHONG CONCRETE IND CO LTD
Cable-stayed bridge steel arch tower steel-concrete combined section connecting structure and construction method
PendingCN119615747ASolve construction difficultiesEasy constructionCable-stayed bridgeBridge structural detailsBridge engineeringArchitectural engineering
The invention belongs to the field of cable-stayed bridges in bridge engineering, and particularly relates to a cable-stayed bridge steel arch tower steel-concrete combined section connecting structure which is characterized in that tower columns of a plurality of arch-shaped steel bridge towers are intersected on an integral steel tower base, and the middle lower part of the integral steel tower base is connected with a concrete tower base in a concrete pouring manner; a steel lattice is designed at the root of the integral steel tower base, a pressure-bearing steel bottom plate is arranged at the lower end of the steel lattice, perforated steel plates are arranged on the bottom face of the pressure-bearing steel bottom plate and comprise a plurality of perforated steel plates in the bridge direction and a plurality of perforated steel plates in the transverse bridge direction, and through steel bars are arranged in round holes corresponding to the perforated steel plates. A traditional pressure-bearing shear transmission type steel-concrete combined section connecting structure is locally optimized and improved, the perforated steel plate is arranged at the bottom of the pressure-bearing steel bottom plate, the problem that concrete pouring construction in a steel lattice is difficult is solved, positioning construction and installation of the whole steel tower base are facilitated, the shear resistance is improved, force transmission is clear, the structure is simple, and construction is convenient.
Owner:JINAN URBAN CONSTRUCTION GROUP CO LTD +2
Method for constructing enclosure structure by adopting hole pile method under limited ground condition
PendingCN121781600AGuaranteed stabilityensure safetyExcavationsBulkheads/pilesClassical mechanicsMechanical engineering
The invention discloses a method for constructing an enclosure structure by adopting a hole pile method under a limited ground condition, which comprises the following steps of: constructing ground enclosure piles on the ground, arranging the ground enclosure piles along a first open excavation section and a second open excavation section, then constructing the first open excavation section and the second open excavation section, then constructing a pipe curtain support beam below a running track, and then constructing a pipe curtain, excavation is conducted from the first open excavation section and the second open excavation section to the direction, so that an underground excavation section is excavated, in-hole fender posts are constructed along the edge of the underground excavation section, in-hole piles are constructed at multiple positions of the ground of the underground excavation section, and steel pipe stand column piles are installed on the in-hole piles; and finally, a pile top beam is constructed on the steel pipe stand column pile, and a cover plate is installed on the pile top beam. According to the construction method, the ground fender posts are constructed firstly, then the in-hole fender posts are constructed when the underground excavation section is constructed, and the in-hole fender posts are connected with the ground fender posts to form a closed fender post structure, so that the safety of subsequent construction is guaranteed, the stability of a soil layer around the subway station is guaranteed, and meanwhile, the construction efficiency is guaranteed.
Owner:CHINA RAILWAY FIRST GRP FIRST CONSTR CO LTD +4
Mounting equipment for assembly type slab culvert
PendingCN121760395AReduce labor intensityShorten the construction periodArtificial islandsGround-workClassical mechanicsHand tool
The invention relates to the technical field of road administration channel installation, in particular to installation equipment for an assembly type slab culvert, which comprises a rack, a rotating sleeve and an abutting assembly, the rotating sleeve comprises one end rotatably connected to the rack, and the abutting assembly comprises connecting rods capable of being hinged to each other and a reset piece arranged between the connecting rods; the abutting assemblies are arranged on the two sides of the rack correspondingly, the reset pieces enable the connecting rods to keep a mutually perpendicular state, a groove is formed in one end of the rotating sleeve, a plurality of mounting grooves used for connection are formed in the slab culvert, bolt and nut structures are arranged in the mounting grooves, and the groove is formed in the upper end of a nut of the slab culvert. The abutting assembly can be bent so that the installation equipment can enter the installation groove, and the reset piece enables the connecting rod to abut against the interior of the installation groove. Compared with a traditional manual tool, the device has the advantages that the labor intensity of workers is relieved, meanwhile, the construction difficulty caused by space limitation is avoided, the mounting efficiency is remarkably improved, and the overall construction period of the slab culvert is shortened.
Owner:XINJIANG JIAOJIAN MUNICIPAL ENG CO LTD
Prefabricated concrete grating structure for access hole of roof framework
ActiveCN224228129USolve construction difficultiesEasy constructionRoof coveringBuilding componentsButt jointArchitectural engineering
The utility model belongs to the technical field of prefabricated concrete grids, and particularly relates to a prefabricated concrete grid structure of a roof framework access hole, which comprises a plurality of vertical prefabricated grids, two butt-joint prefabricated grids are arranged between two vertical prefabricated grids, and two butt-joint prefabricated grids are arranged between two butt-joint prefabricated grids. The length of the two butt-joint prefabricated grids is smaller than that of the vertical prefabricated grid, a horizontal grid is arranged at the bottom ends of the two butt-joint prefabricated grids, and an access hole is formed in the lower side of the horizontal grid; the horizontal grid comprises two first steel channels, the two ends of the first steel channels are welded to the vertical prefabricated grids on the two sides, a connecting piece is arranged between the first steel channel on the upper side and the butt joint prefabricated grid, and concrete is poured on the outer sides of the first steel channels. According to the utility model, the problems that the roof grating adopts a prefabrication process and the grating at the access hole part is difficult to construct can be solved, and the uniformity of the production of the prefabricated grating is ensured.
Owner:XIAMEN ZHONGHAI REAL ESTATE CO LTD +1
Special mould for protective lining of gasifier process burner
ActiveCN222499046UCompact designReasonable structural designGranular/pulverulent flues gasificationStructural engineeringMechanical engineering
Owner:LUOYANG LIER REFRACTORY MATERIAL
Rotary drilling super-long permanent steel casing cast-in-place pile and construction method
ActiveCN119411584ASolve construction difficultiesreduce construction costsFoundation testingBulkheads/pilesArchitectural engineeringLaser scanning
The invention provides a rotary drilling super-long permanent steel casing cast-in-place pile and a construction method. A permanent steel casing and reinforcement cage connection positioning frame technology, a steel casing sinking multi-layer arc-shaped clamping plate auxiliary positioning technology, a floating disc and inclinometer combined steel casing perpendicularity control technology, a permanent steel casing sinking sliding pile control technology, a steel casing bottom deformation reaming recovery technology and a three-dimensional laser scanning measurement and control technology are adopted. The construction efficiency of the rotary digging hole-forming super-long permanent steel casing cast-in-place pile can be improved, construction is easy and convenient, construction safety is good, and good technical and economic benefits are achieved.
Owner:ZHEJIANG JIAOGONG UNDERGROUND ENG CO LTD +1
Drainage structure for post-cast strip pouring
ActiveCN222456103UGuarantee molding qualityReduce risk of leakageArtificial islandsUnderwater structuresArchitectural engineeringPipe
The utility model relates to the technical field of building construction, and particularly discloses a drainage structure for post-cast strip pouring, which comprises a flow guide pipe, a drainage valve and a grouting valve. The length of the flow guide pipe corresponds to the thickness of the cushion layer, and the top end of the flow guide pipe is consistent with the top surface of the cushion layer; the drainage valve is arranged at the top end of the flow guide pipe; the grouting valve is arranged on the side face of the upper end of the flow guide pipe, and the height of the grouting valve is smaller than that of the flow guide valve. According to the post-cast strip construction method, the drainage structure is arranged, and the post-cast strip construction method is formed in the region rich in water content based on the drainage structure, so that it is guaranteed that the post-cast strip pouring environment is dry and free of water, the post-cast strip forming quality is guaranteed, and the post-cast strip leakage risk is reduced. According to the method, the problem that the construction quality of the post-cast strip is affected by water seepage, water accumulation, water gushing and the like caused by later sealing of the post-cast strip in a traditional construction method is solved.
Owner:CSCEC PERAL RIVER INT DEV CO LTD
Double-layer movable assembly type tunnel operation platform
The utility model discloses and provides a double-layer movable assembly type tunnel work platform which comprises a bottom support, a first work platform is fixedly installed at the top end of the bottom support, multiple sets of connecting rods are fixedly installed on the two sides of the first work platform, and the top ends of the multiple sets of connecting rods are connected with a second work platform. The first working platform and the second working platform are of a double-layer structure, a plurality of sets of protective railings are arranged on the first working platform and the second working platform, steel wire guardrail nets are installed between the multiple sets of protective railings, grating steel plates are laid on the outer surfaces of the bottom ends of the first working platform and the second working platform, and movable stairs are arranged between the first working platform and the second working platform. According to the working platform, the working space is effectively enlarged, more working personnel can work at the same time, the construction efficiency is improved, the working personnel can easily move between the two layers of platforms through the arranged movable stairs, the working convenience is greatly improved, and the problem that a large-diameter tunnel is difficult to construct is perfectly solved.
Owner:CHINA RAILWAY NO 8 ENG GRP CO LTD
Splicing type rail and sliding door and window
ActiveCN224078937UGuaranteed stabilityreduce volumeWing suspension devicesLap jointHorizontal orientation
The utility model discloses a spliced track and a sliding door and window, and belongs to the technical field of doors and windows. The spliced track comprises a first track and a second track, and a first hook and a first connecting part are arranged on the side face of the first track in the vertical direction; the second rail is arranged on one side, in the horizontal direction, of the first rail, a second hook and a second connecting part are arranged on the side face of the second rail in the vertical direction, the second hook is in lap joint with the first hook, and the first connecting part is detachably connected with the second connecting part; the first rail and the second rail are used for being in sliding connection with corresponding door and window sashes respectively. According to the splicing type rail and the sliding door and window, the problem that logistics, construction and manufacturing are difficult is solved, cost is reduced, and the yield is increased.
Owner:SHENZHEN HOPO WINDOW CONTROL TECH CO LTD
Support structure, photovoltaic mount and photovoltaic system
ActiveCN224697713UImprove construction efficiencyImprove transportation efficiencyStructural engineeringAssembly structure
The application discloses a support structure, a photovoltaic support and a photovoltaic system, and belongs to the photovoltaic technical field.The support structure comprises a base, at least two parts of which are connectable, one part of which is used for being connected with a foundation, the base is provided with a first assembly structure and a load cable cooperation structure; a support beam is assembled between the at least two parts of the base through the first assembly structure; a mounting seat comprises at least two parts, which are connectable, and is assembled on the support beam, one part of the mounting seat is provided with an assembly cable cooperation structure.Through dividing the support structure into three modules of the base, the support beam and the mounting seat, modular transportation and standardized assembly can be realized, so that the transportation and construction efficiency is improved, and construction difficulty caused by processing errors of pre-welding is avoided.
Owner:ENERTRACK TECH CO LTD
Throttling manifold for controlling oil jacket venting and its control method
ActiveCN117386317BSolve the jumpAchieve energy conservation, emission reduction, consumption reduction and environmental protection requirementsWell/borehole valve arrangementsSealing/packingLine tubingControl engineering
This invention relates to a throttling manifold and its control method for controlling oil well blowout. The manifold includes an internal control line, a five-way connector, a first four-way connector, a second four-way connector, a third four-way connector, a fourth four-way connector, a fifth four-way connector, and a sixth four-way connector. The throttling manifold is a novel system composed of a conventional throttling manifold, two manual throttling valves, six flat valves, two four-way connectors, and a flanged short section. This throttling manifold has a dual-channel structure, with each channel controlled by a manual throttling valve and a manual flat valve, and a direct discharge in the middle. This invention significantly improves the safety factor of on-site operations, meets energy-saving, emission-reduction, and environmental protection requirements, effectively solves construction problems during gas well depressurization, well control, and water absorption index measurement, and has strong practicality and operability, extending the service life of the manifold and improving its throttling effect.
Owner:SINOPEC OILFIELD SERVICE CORPORATION +2
Construction method for tunnel portal at bridge-tunnel connection position
ActiveCN119641383AGuaranteed support strengthSolve the lack of spaceUnderground chambersBridge erection/assemblyButt jointArchitectural engineering
The invention discloses a construction method for a tunnel portal at the bridge-tunnel connection position. The construction method comprises the following steps that a tunnel portal platform is constructed at the tunnel portal close to a slope surface; mounting foot grooves are excavated in the slope surface below the tunnel portal platform; arch foot plates of the first corrugated steel arch and the second corrugated steel arch are installed in the installation foot grooves with the corresponding heights; the first corrugated steel arch and the second corrugated steel arch are filled with concrete; extending platform plates are laid on the tops of the first corrugated steel arches and the tops of the second corrugated steel arches; and a tunnel secondary lining formwork trolley is assembled on the extending platform plate and the tunnel portal platform. The extension platform plate is laid on the top of the corrugated steel arch and is in butt joint with the tunnel portal platform, so that a stable and enough working face is provided for assembling and construction of the tunnel secondary lining formwork trolley, and the problem that construction is difficult due to the narrow tunnel portal platform is effectively solved; and construction inconvenience and extra work amount caused by a traditional solution that a trolley is assembled in the tunnel or the tunnel surface is formed backwards are avoided.
Owner:HUNAN PROVINCIAL COMM PLANNING SURVEY & DESIGN INST CO LTD
Anchoring chain locker structure of a ship and a ship comprising the same
Owner:GUANGZHOU SHIPYARD INTERNATIONAL LTD
Method of constructing a composite pipe body
PendingCN122257824ASolve construction difficultiesReduce welding workloadUnderground chambersTunnel liningPipeIndustrial engineering
The application relates to a construction method of a combined pipe body, which comprises the following steps: S1, obtaining a plurality of target pipe bodies, installing the target pipe bodies to preset positions, and obtaining a plurality of preset pipe body structures; a first connecting part is arranged on the inner wall of each target pipe body; S2, after the preset pipe body structures are obtained, a fixing assembly is installed between the outermost target pipe bodies in the adjacent two pipe body structures, and a combined pipe body is obtained; wherein the fixing assembly comprises an upper fixing part, a lower fixing part and a supporting column arranged between the upper fixing part and the lower fixing part; the supporting column is detachably connected to the upper connecting plate and the lower connecting plate through a first connecting part; and S3, a target component is connected to the first connecting part through a second connecting part. In the application, the detachable fixing assembly and the bolt connection mode can reduce the welding operation amount, the target component is installed after construction, the construction space in the pipe body during construction is improved, the construction efficiency is improved, and the construction difficulty in a narrow space is avoided.
Owner:CHINA RAILWAY SIXTH GROUP CO LTD
Mobile power supply hyperbolic cooling tower anti-freezing device
The utility model relates to the technical field of cooling tower anti-freezing, in particular to a mobile power supply hyperbolic cooling tower anti-freezing device which comprises a driving mechanism, two stand columns, anti-freezing curtain cloth arranged between the two stand columns, a top beam fixedly connected between the top ends of the two stand columns, and a first fixed pulley rotationally connected in the top beam. The left end of the top beam is rotationally connected with second fixed pulleys which are in one-to-one correspondence. A rotating shaft is arranged at the bottom end of the accommodating groove, one end of the rotating shaft is in transmission connection with a driving mechanism, a winding drum is coaxially fixed on the rotating shaft, a steel wire rope is wound on the winding drum and is connected with the bottom end of the anti-freezing curtain cloth, and the top end of the anti-freezing curtain cloth is fixedly connected with the top beam. The rotating shaft and the driving mechanism are adjusted to the bottom of the anti-freezing device through the steel wire rope, the first fixed pulley and the second fixed pulley, so that a worker does not need to climb to a high position when overhauling the rotating shaft, overhauling of the worker can be facilitated, and labor intensity of overhauling of the worker is reduced.
Owner:ZHONGQIAN CONSTR CO LTD
Modularized assembly type concrete channel system suitable for abrupt slope mountainous region
PendingCN121992754Ashorten maintenance timereduce supportArtificial water canalsIrrigation ditchesTerrainPre stress
The invention discloses a modular assembly type concrete channel system suitable for abrupt slope mountainous regions, and relates to the technical field of hydraulic engineering and slope treatment, in particular to a modular assembly type concrete channel system suitable for abrupt slope mountainous regions, which comprises an anti-slide pile foundation and a channel main body module arranged on the anti-slide pile foundation. The channel body module is of a U-shaped structure, a male opening is formed in the front end of the channel body module, a female opening is formed in the rear end of the channel body module, and a rubber waterstop is embedded in the inner side of the female opening to achieve sealing connection. The multiple channel main body modules are in butt joint through male and female openings, and prestressed steel cables penetrate through the channel main body modules to enhance integrity. The upper end of the module is lapped with a cover plate, and the inner side wall is provided with drainage holes. The system adopts a modular assembly design, is simple and convenient to construct, can effectively adapt to abrupt slope terrains, and improves the anti-sliding stability and the anti-seepage performance.
Owner:蒙延禄