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14 results about "Bridge material" patented technology
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The traditional building materials for bridges are stones, timber and steel, and more recently reinforced and pre-stressed concrete. For special elements aluminum and its alloys and some types of plastics are used.
Composite plugging agent, plugging composition and plugging cement paste for shale gas formation cracks
The invention relates to the technical field of drilling compositions, in particular to a composite plugging agent, a plugging composition and plugging cement paste for shale gas formation cracks. The composite plugging agent for shale gas stratum cracks is composed of a bridging material, a filling material and an end-capping material, the mass ratio of the bridging material to the filling material to the end-capping material is (1.2-1.4): 0.5: (0.1-0.3), the bridging material is organic fibers with the length of 3-5 mm, the filling material is composed of inert particles with the particle size of 35-280 [mu] m and micro-silicon with the particle size of 0.15-1 [mu] m, and the end-capping material is a mixture of silicon oxide and silicon oxide. The end-capping material is composed of organic fibers with the length of 8-9 mm and walnut shells with the particle size of 3-5 mm. Through compounding of different types of bridging materials, filling materials and end sealing materials and grading of fibers with different lengths and plugging particles with different particle sizes, the plugging agent can be matched with cement paste in complex cracks and large cracks (1-4 mm) of a stratum to form a stable and compact plugging layer, the compressive strength is high, effective retention is achieved, and the effect of plugging a complex leakage layer is achieved.
Owner:SINOPEC OILFIELD SERVICE CORPORATION +1
High-strength composite bridge deck material and preparation method thereof
The invention discloses a high-strength composite bridge deck material and a preparation method thereof, and belongs to the technical field of bridge materials. The cable comprises a filling layer; the filling layer is composed of a core material and a fiber fabric laid on the outer surface of the core material, and modified epoxy resin is manually pasted on the fiber fabric; cFRP plates are arranged on the upper portion and the lower portion of the filling layer, and CFRP reinforcing rib plates are arranged on the periphery of the filling layer; a fiber fabric of hand lay-up modified epoxy resin is also laid on the CFRP plate; through the structure with gradient mechanical properties, external loads are smoothly transmitted to the core material from the high-strength panel, and sudden change of interface stress is avoided; the bridge deck prepared by the method keeps light weight and high strength, the integrity and the structural durability of the bridge deck are remarkably enhanced, and the comprehensive requirements of modern bridge engineering on long service life, high bearing capacity and low maintenance can be met.
Owner:长三角碳纤维及复合材料技术创新中心 +2
Mobile ultra high performance concrete sprayer
This invention discloses a mobile ultra-high performance concrete spraying machine, belonging to the technical field of bridge material construction equipment. It includes a vehicle body assembly and a spraying assembly installed at the front of the vehicle body assembly. The spraying assembly includes a frame body, on the upper surface of which a vertically arranged material leveling mechanism and a tilting mechanism are installed. Above the material leveling mechanism is a stirring mechanism and a material storage mechanism, wherein one end of the stirring mechanism is movably connected to the tilting mechanism, allowing the stirring mechanism and the material storage mechanism to tilt towards their movably connected end to open the material leveling mechanism. A motor is installed directly below the material leveling mechanism, with its shaft passing through the material leveling mechanism and drivingly connected to the stirring mechanism. A spraying pipe is connected to the front of the material leveling mechanism. The modular layout of the material leveling mechanism and the stirring mechanism, along with the linkage design of the stirring mechanism and the tilting mechanism, allows for quick opening of the material leveling mechanism for cleaning or maintenance, preventing the mixing of dried UHPC with new material and ensuring stable performance of the sprayed layer.
Owner:SHANDONG TRANSPORTATION INST +1
Feeder capable of preventing bridging and extrusion
The utility model discloses a feeder capable of preventing bridging and extrusion. The feeder comprises a feeding bin bottom and a stirring feeding disc. The feeding bin bottom comprises a bottom plate, an inner shell and an outer shell; an annular discharging channel is formed between the inner shell and the outer shell; a discharge hole is formed in the bottom plate opposite to the discharge channel; the inner shell comprises an upper shell and a material thickness adjusting ring; the material thickness adjusting ring is hermetically arranged at the bottom of the upper shell, and the bottom surface height can be adjusted; the stirring feeding disc comprises a rotary connecting ring, a stirring shaft, stirring blades and a plurality of partition plates; the multiple partition plates are evenly distributed at the bottom of the inner wall face of the rotary connecting ring in the circumferential direction, each partition plate is distributed in the radial direction of the rotary connecting ring, and the radial length of each partition plate is not smaller than the radial thickness of the discharging channel. By means of the bridge breaking device, bridge breaking of easily-bridged materials can be achieved, the easily-bridged materials are prevented from being extruded and broken in the feeding process, and the wide feeding speed range can be taken into account.
Owner:SHANGHAI NEXTECH CO LTD
Bridge impact testing machine
ActiveCN224286331UMaterial strength using repeated/pulsating forcesShock testingBridge materialArchitectural engineering
This utility model relates to a bridge impact testing machine in the field of testing technology. Addressing the problem that existing equipment cannot simulate diverse and complex impact conditions, this testing machine includes a frame, a guide frame, support frame I, and support frame II. Impact mechanism I controls the raising and lowering of impactor I by electromagnet I engaging with attraction seat I; impactor I has a V-shaped bottom. Impact mechanism II controls the raising and lowering of impactor II by electromagnet II engaging with attraction seat II; impactor II is square and one end is covered with a steel angle iron. Adjustable spacing support blocks are installed below the frame to accommodate different sample sizes. This design utilizes a dual-impact mechanism to achieve multiple impact modes, such as free-fall impact and directional impact, simulating complex working conditions encountered by actual bridges. Flexible settings for height and number of impacts improve the comprehensiveness and accuracy of test data, making it suitable for evaluating the impact resistance performance of bridge materials.
Owner:SHANGHAI LECE ELECTRONIC TECH CO LTD
Frame profiles, frames, and methods for repairing frames
To prevent situations where watertightness is compromised, while also improving thermal insulation. [Solution] The lower frame 12 has an outdoor metal molded part 12A and an indoor metal molded part 12B made of metal, and a bridge material 12C made of thermal insulation material, with the outdoor metal molded part 12A and the indoor metal molded part 12B connected via the bridge material 12C, and a connecting sheet 20 made of thermal insulation material is bonded to the portion extending from the adhesive flat surface 12c provided on the outdoor metal molded part 12A, the inner circumferential surface 12d of the bridge material 12C, and the adhesive flat surface 12c provided on the indoor metal molded part 12B.
Owner:YKK AP INC
An elastic concrete for expansion joints and its preparation method
The application relates to the technical field of road and bridge materials, and discloses elastic concrete for expansion joints and a preparation method thereof, which comprises the following components: A component, a modified titanium dioxide / isocyanate end-capped amino polyether prepolymer compound, which is made of isocyanate modified titanium dioxide and isocyanate end-capped amino prepolymer; B component, an amino-terminated polyether and an auxiliary additive; and C component, mixed stone. The mechanical properties and toughness of the elastic concrete are improved, and the material is endowed with good durability and ultraviolet resistance.
Owner:CHONGQINGSHI ZHIXIANG PAVING TECH ENG CO LTD
A pressure machine for road and bridge testing and its usage method
PendingCN122130466AMaterial strength using tensile/compressive forcesBridge materialArchitectural engineering
This invention relates to the field of strength testing of new concrete materials, and particularly to a pressure testing machine for road and bridge construction and its usage method. The machine includes a base plate, a load-bearing platform, and a mounting box. The mounting box is placed on the load-bearing platform, and the load-bearing platform is fixedly installed on the base plate. The mounting box contains a pressure testing component and a test block clamping component. The test block clamping component holds the test block directly below the pressure testing component. The test block clamping component includes multiple clamping frames and clamping platforms, with the clamping platforms located at the bottom of the clamping frames. This invention achieves basic positioning by using the positioning blocks of the clamping platforms to conform to the edges of the test block. Combined with the lateral limiting of the clamping plate and the top abutment limiting of the drive frame, a three-dimensional positioning protection is formed for the test block. This solves the problem of test block offset and shaking caused by the single clamping method of traditional equipment, ensuring that the pressure head's force application point is aligned with the center of the test block, significantly reducing test data errors, and meeting the high-precision testing requirements of new road and bridge material test blocks.
Owner:GUANGZHOU TONGHUI ENG CO LTD
Lifting device for constructional engineering
The utility model discloses a hoisting device for constructional engineering, which belongs to the technical field of hoisting devices and comprises two bridge frames, the upper ends of the two bridge frames are jointly and movably connected with a hoisting mechanism, and the lower portion of the hoisting mechanism is connected with a material body in a magnetic attraction mode. The device can be fixed to two steel beam frames, the device can be adjusted according to the distance between the two steel beam frames, the stability of the device during use is guaranteed, bridge materials can be positioned through cooperation of the lifting assembly and the adjusting piece, the position of the fixed materials can be adjusted according to the sizes of the materials, and the device is convenient to use. And materials can be better fixed, the function that bridge frames with different widths can be conveniently used can be achieved, and the practicability of the device is improved.
Owner:SHANDONG DEJIAN GRP CO LTD
Device for safely adding temporary plugging material into fracturing operation and using method thereof
PendingCN121853977AChange join pathavoid enteringFluid removalEqualizing valvesLine tubingBridge material
The invention discloses a device for safely adding a temporary plugging material into fracturing operation and a using method of the device, and belongs to the technical field of oil and gas field fracturing operation auxiliary devices. One end of the high-pressure manifold is connected to a wellhead connecting pipe; a hollow temporary storage container is arranged at the position, close to the wellhead connecting pipe, of the high-pressure manifold; a feeding box communicated with an inner cavity of the temporary storage container and a corresponding feeding switch are mounted on the temporary storage container; a blow-off pipe and a corresponding blow-off switch are arranged on the temporary storage container; the outlet side of the rear end of the temporary storage container is connected to the high-pressure manifold through a high-pressure connector. A rear-end switch is arranged on the high-voltage connector; the inlet side of the front end of the temporary storage container is detachably connected to an output pipeline of the pump truck through a low-pressure connector and a conveying pipeline. The low-voltage connector is also provided with a front-end switch; the problems that in the prior art, when a temporary plugging material is added in fracturing operation, the temporary plugging material is prone to sedimentation in a high-pressure manifold, and a pump truck is prone to pump clamping, pump burning or liquid leakage are effectively solved.
Owner:GUIZHOU WUJIANG SHALE GAS EXPLORATION CO LTD
Bridge anti-collision guardrail stabilizing and reinforcing structure
Owner:LANZHOU JIAOTONG UNIV
Railway bridge construction operation and maintenance method and system based on carbon emission optimization
PendingCN121960850Aovercome precisionOvercoming real-timeForecastingBiological modelsCorrelation analysisNeural network nn
The invention provides a railway bridge construction operation and maintenance method and system based on carbon emission optimization, relates to the technical field of traffic infrastructures, and aims to construct a bridge digital twin model in a construction stage to simulate and predict carbon emission dynamics. And carrying out correlation analysis on the carbon emission influence factors by using a space-time diagram network. The carbon emission is globally optimized through a quantum annealing algorithm, construction scheduling is optimized in combination with a quantum decision tree, dynamic regulation and control of the carbon emission are achieved, and meanwhile the influence on bridge material attenuation is determined. And an operation and maintenance stage: inputting the bridge structure attenuation information and the bridge structure data obtained in the operation and maintenance stage into a convolutional neural network, predicting a bridge structure state, and generating a dynamic maintenance decision according to the bridge structure state. The method can accurately monitor and optimize the carbon emission in the construction, operation and maintenance stages of the railway bridge, and provides technical support and decision basis for the industry to realize low-carbon and sustainable development targets.
Owner:CHINA RAILWAY ENG CONSULTING GRP CO LTD
Anti-bridging material feeding machine
ActiveCN224394088Ureduce concentrationImprove work efficiencyLarge containersLoading/unloadingBridge materialElectric machine
The utility model discloses a kind of prevent frame bridge material feeding machine, including body mechanism and being set to the top of body mechanism, to reduce the falling point position of material too concentrated, resulting in the falling mechanism of the stacking condition appears, the falling mechanism includes the sealing plate that is engaged with the top of hopper, the inside of the sealing plate is symmetrically provided with inner plate, another part area is discharged to stirring vane, second motor is opened simultaneously, and stirring vane is rotated in hopper, and the material of stacking is scattered, after processing, material falls to the top of conveying vane in feeding pipe, first motor is opened, and conveying vane is rotated in feeding pipe, and material is conveyed to discharge pipe and is put into rear-end equipment or storage container, can effectively scatter and scatter the material in falling, so that its falling point concentration degree drops, reduce the new material arch bridge or compaction block in falling point area formation condition appears, to improve the operation efficiency of device.
Owner:魏定国
Hollow slab bridge reinforcing structure
ActiveCN224077991UImprove stabilityGuaranteed stabilityBridge erection/assemblyBridge strengtheningFiberBridge material
The utility model relates to the technical field of hollow slab bridges, and discloses a hollow slab bridge reinforcing structure which comprises a fixing plate, a plurality of fiber bands are fixedly connected to the outer walls of the two sides of the fixing plate, and the ends, away from the fixing plate, of the fiber bands are fixedly connected with limiting blocks. A threaded rod is fixedly connected to the outer wall of the side, away from the fiber belt, of the limiting block, a first connecting top plate and a second connecting top plate are clamped and matched to the side, away from the fixing plate, of the outer wall of the fiber belt, and connecting side plates are fixedly connected to the outer walls of the first connecting top plate and the second connecting top plate; supporting columns are fixedly connected to the front end and the rear end of the lower portion of the outer wall of one side of the connecting side plate. According to the hollow slab bridge, the reinforcing structure arranged on the hollow slab bridge is provided with the adjustable fiber belt, compared with traditional steel, fiber materials can reduce the dead weight of the reinforcing structure and improve the bearing capacity of the whole bridge, and the pulling force of the fiber materials can be adjusted according to different bridge materials so that the hollow slab bridge can be suitable for bridges made of different materials.
Owner:ZHONGQIAO HEBEI CONSTR TECH CO LTD