22results about How to "Improve reinforcement" patented technology

This invention relates to a reusable, detachable, perforated reinforcement and sealing structure for pressure-resistant composite material hulls used in deep-sea equipment. The structure comprises: an outer sealing reinforcement component fitted and sealed to the outer circumferential surface of the hull at a first circular hole; an embedded, segmented sealing core positioned between the outer sealing reinforcement component and the inner side of the hull, fitting and sealingly sealing the first circular hole; the outer guide surface of the embedded segmented sealing core fitting with the outer sealing reinforcement guide surface of the outer sealing reinforcement component; an inner sealing reinforcement component positioned within the central through hole of the embedded segmented sealing core and the first connecting hole of the outer sealing reinforcement component; the inner sealing reinforcement component fitting and sealingly sealingly with the first connecting hole; the inner sealing guide surface of the inner sealing reinforcement component fitting with the inner guide surface of the embedded segmented sealing core; a locking structure reinforcement ring fitted and positioned inside the hull; and a locking sealing plug detachably and securely connected to the inner sealing reinforcement component. This invention is used for perforated reinforcement and sealing of pressure-resistant composite material hulls used in deep-sea equipment.

The utility model relates to furniture repair reinforcing technical field, propose a sofa seat repair structure, including second reinforcing plate, set up the first reinforcing plate of second reinforcing plate one end, one end fixed connection of first reinforcing plate and second reinforcing plate has the swivel rod, the first reinforcing plate and second reinforcing plate one end rotation connection of swivel rod surface has the connecting plate, one end of swivel rod penetrates the connecting plate, the adjusting assembly of assembly on connecting plate, the lifting assembly of assembly on first reinforcing plate and second reinforcing plate, through setting up swivel rod, connecting plate and adjusting assembly, make can change the inclination angle of connecting plate, avoid the cumbersome inconvenience needing to cut the both ends of existing reinforcing piece, and utilize lifting assembly can change the overall length of first reinforcing plate and second reinforcing plate, and then can make its support reinforcing of sofa seat frame crossbeam and longitudinal beam, it is convenient for user to carry out repair reinforcing operation more conveniently.

The application discloses a kind of overburden separation zone reinforcement method of deformation sensitive structure goaf, including determining the boundary size and vertical height of overburden separation zone of goaf;Determine the boundary of blasting treatment of overburden separation zone of goaf;Design the amount of directional blasting explosive and the distance between explosive and the top of overburden separation zone, so that the rock and soil around explosive on the boundary of deformation sensitive structure foundation influence boundary is formed by directional blasting Throw pile;After the hole of hole drilling along the original blasthole distribution boundary to the original overburden separation zone bottom elevation and inject water reaction foaming polyurethane to form flow-plastic viscous liquid, flow-plastic viscous liquid rapidly diffuses along the upper and lower boundary of overburden separation zone and the interstice between original broken overburden separation zone accumulation block and forms blocking boundary;Deep grouting method is used to reinforce the cavity in blocking area.This method aims to reduce the disturbance of blasting on the upper soil layer and deformation sensitive structure, reduce the consumption of slurry, save engineering cost, and improve the treatment effect of goaf site.

A layered step-by-step grouting method suitable for deep hole paste slurry pretreatment in karst area, comprising the following steps: construction preparation and measurement of line, according to the geological survey report to determine the grouting parameters, and according to the principle of one stake two holes to layout grouting hole; Grouting hole drilling construction, using the way of separate stake, sequence, according to the design depth of sub drilling; Grouting pipe layout and checking the grip force, put down the paste grouting pipe, and use the karst paste correction formula to calculate the grip force, to ensure that it is less than the pullout machine pullout force and grouting pipe yield strength; Karst shallow hole pretreatment grouting, low pressure grouting is carried out on the shallow karst layer of the set depth, forming a closed layer; Karst deep hole step-by-step grouting, after the curing of the shallow hole closed layer, using the way of sub grouting from top to bottom, step-by-step retreat grouting is carried out on the deeper karst layer; Grouting quality detection and supplementary grouting; Hole sealing acceptance.

The application discloses an ultra-high performance concrete for reinforcing an existing structure and a preparation method thereof. The ultra-high performance concrete for reinforcing the existing structure is composed of the following components in parts by weight: 370-500 parts of Portland cement, 340-560 parts of self-stress sulphoaluminate cement, 80-150 parts of silica ash, 80-120 parts of composite admixture, 0.24-0.4 parts of lithium salt, 5-8.4 parts of composite retarder, 900-1150 parts of quartz sand, 160-220 parts of steel fiber, 27-36 parts of water reducing agent and 142-192 parts of water. Compared with a traditional UHPC, the ultra-high performance concrete has the advantages of short setting time, high hourly strength, strong anti-interference performance and certain micro-expansion, can be self-compacted and free-vibrated after being poured in a narrow space between an existing structure and a formwork, can match a reinforcing construction window period, has high hourly strength after setting and hardening, plays a good anti-dynamic-load-disturbance-cracking role in the construction without interrupting traffic, and has appropriate expansion, so that the adhesion between the outer layer and the existing structure is further improved, the two are more closely combined, and the reinforcing effect is better.

The invention relates to a precipitated silica, characterized in that it has the following physico-chemical parameters: The precipitated silica according to the invention is produced by the following method: a) initial charge of an aqueous solution of organic and / or inorganic salts and / or alkali and / or alkaline earth silicates and / or organic and / or inorganic bases with pH > 9, b) simultaneous metering of water glass and acidifying agent to this initial charge while stirring at 80 to 98°C for 60 to 120 minutes, c) then stopping the addition of water glass and metering the acid only in smaller amounts than before in order to bring the pH of the mixture (measured at 60°C) to 9.0 to 10.0, d) then stirring the mixture at high temperature > 85°C for 45 minutes to 200 minutes without further addition of reactants, e) acidification using sulfuric acid to a pH of about 3.5 to 4.5 (measured at 60°C) and f) filtration, drying to < 8% loss on drying and then granulation of the mixture. The silica according to the invention can be used for the production of rubber mixtures, in particular for the production of tyres, cable sheaths, hoses, drive belts, conveyor belts, roller coverings, shoe soles, gasket elements and damping elements.

The invention provides an outdoor power switch cabinet with high safety protection performance, which comprises a base and a cabinet body fixedly connected to the top wall of the base, and further comprises an anti-collision assembly and a power supply assembly, the anti-collision part comprises a supporting shaft rotationally connected to the inner wall of the base, a first gear and a second gear fixedly connected to the outer wall of the supporting shaft, and a buffering part slidably connected to the side wall of the base. The supporting part comprises a third gear, a fourth gear and a telescopic supporting part, the third gear and the fourth gear are fixedly connected to the outer wall of the supporting shaft, the telescopic supporting part is slidably connected to the side wall of the base, the telescopic supporting part is in linkage with the buffering part, and the reinforcing part is slidably connected to the inner wall of the reinforcing groove through a sliding groove; when the cabinet is impacted, the purpose of increasing the supporting range of the base is achieved, the overall stability is improved, meanwhile, when the supporting frame moves, the sliding blocks are pulled to move through the reinforcing rods, then the cabinet body is reinforced, the cabinet body is prevented from toppling over after being impacted, and the overall protection performance is improved.

The invention discloses a subway tunnel deformation disease comprehensive treatment device which comprises at least one reinforcing pushing device, the reinforcing pushing device comprises an anchor rod, two sliding grooves are symmetrically formed in the outer wall of the anchor rod, a semicircular shell is slidably connected into each sliding groove, the outer wall of the anchor rod is fixedly connected with a limiting block, and the limiting block is fixedly connected with the outer wall of the anchor rod. A pushing cavity is formed by the limiting block and the inner wall of one end of the shell, a grouting pipe is arranged at one end of the shell, a first grout outlet is formed in the outer wall of the grouting pipe and located in the pushing cavity, one end of the shell is rotationally connected with a supporting rod, and a groove body is formed between two damaged tunnel segments. And after the reinforcing pushing device extends into the groove body, the supporting rod rotates to the outer wall of the tunnel segment. The tunnel segment reinforcing device has the advantages that on one hand, the supporting rods and the supporting rods form a reinforcing whole inside and outside the tunnel segment, on the other hand, the tunnel segment and the inner wall of the tunnel form the partition cavities after being pulled out, grouting support is formed in the partition cavities, and subsequent collapse is avoided while reinforcing is improved.

The utility model discloses a high-strength aluminum alloy embedded channel which comprises an aluminum alloy frame body, a positioning channel is arranged in the middle of the aluminum alloy frame body, a first reinforcing mechanism is arranged on one side of the aluminum alloy frame body, and a second reinforcing mechanism is arranged on the other side of the aluminum alloy frame body. Each of the first reinforcing mechanism and the second reinforcing mechanism comprises a side reinforcing body and a plurality of reinforcing ribs connected to the middle of the side reinforcing body, each side reinforcing body comprises an aluminum alloy plate, a carbon steel sheet and screeding blocks, the carbon steel sheet is fixedly connected to one side of the aluminum alloy plate, and the screeding blocks are arranged on one side of the carbon steel sheet; according to the high-strength aluminum alloy pre-buried channel, the periphery of the whole aluminum alloy pre-buried channel is effectively reinforced, the supporting strength of the channel is improved, the channel is not prone to being extruded and deformed, therefore, the use strength is higher, the service life of the channel is prolonged, the service life of the channel is prolonged, and the service life of the channel is prolonged. The service life is prolonged.

This utility model discloses a steel structure cantilever beam connection node, including a first vertical beam, a second vertical beam on one side of the first vertical beam, an upper connecting beam connected to the inner walls of the upper ends of the first and second vertical beams, and a lower connecting beam installed on the inner walls of the lower ends of the first and second vertical beams. First reinforcing seats are provided on both sides of the bottom end of the upper connecting beam, and second reinforcing seats are provided on both sides of the top end of the lower connecting beam. A second reinforcing rib is installed on the inner wall of one of the second reinforcing seats, and a first reinforcing rib is connected to the inner wall of the other second reinforcing seat and the outer wall of the first reinforcing seat. A reinforcing plate is connected to the outer wall between the first reinforcing ribs. This utility model not only improves the structural strength between the first and second vertical beams but also ensures the structural strength between the first and second cantilever beams, and facilitates reinforcement work between the first and first cantilever beams and between the second and second vertical beams.

The application discloses a heat recovery steam pipeline hoisting frame, and relates to the field of pipeline installation and positioning.The heat recovery steam pipeline hoisting frame comprises a hoisting frame unit, a clamping plate connecting unit and a heat transfer unit.The hoisting frame unit comprises a pipeline hoisting frame and a clamping plate arranged on the pipeline hoisting frame; the heat transfer unit comprises a heat recovery pipeline arranged on the clamping plate connecting unit and a heat transfer assembly arranged on the heat recovery pipeline, one end of the heat transfer assembly being connected with the clamping plate and the other end of the heat transfer assembly being located in the heat recovery pipeline.The heat recovery steam pipeline hoisting frame is connected with the clamping plate connecting unit of the hoisting frame unit of the steam pipeline, the clamping plate is connected with the heat recovery pipeline on one side of the steam pipeline through the clamping plate connecting unit, the clamping plate is protected by a clamping plate connecting cover, the reinforcement of the whole hoisting frame and the clamping plate is improved, and the deformation of the clamping plate does not affect the operation safety of the steam pipeline.The heat transfer unit is arranged to recover the heat on the clamping plate, and the heat remaining on the hoisting frame clamping plate is recycled.

The invention discloses a bridge expansion joint low-carbon quick-hardening early-strength repairing material and a construction method thereof, and belongs to the technical field of engineering construction. The low-carbon quick-hardening early-strength repairing material for the bridge expansion joint is prepared from the following raw materials in parts by weight: sulphoaluminate cement, Portland cement, calcined shell powder, fly ash and silica fume. Reinforced modified fibers, modified shell powder and a water reducing agent. By treating the shell powder and the reinforced fibers, the setting time and the initial strength maturation period of the concrete can be shortened, so that the construction speed and efficiency are improved, the repairing and reinforcing process of the bridge expansion joint is accelerated, the construction period is shortened, and the engineering cost is reduced. The low-carbon quick-hardening early-strength repairing material for the bridge expansion joint can improve the strength and durability of a repairing layer and effectively guarantee safe operation of a bridge, and meanwhile, quick-hardening construction can shorten the traffic interruption time and guarantee quick and normal traffic of a road.

This invention relates to the field of railway construction technology, particularly to freight railway structures and their construction methods and systems. The structure includes an embankment structure situated on the ground, with railway track assemblies fixedly installed on top of the embankment structure. The railway track assemblies are rigidly connected to the top of the embankment structure. The embankment structure comprises a top subgrade layer and a bottom subgrade layer, arranged from top to bottom, with the railway track assemblies installed on the top subgrade layer. This freight railway structure utilizes its underground foundation reinforcement layer to provide stable support for the entire above-ground structure. Simultaneously, the embankment structure above ground employs an underground structure for multi-layered reinforcement, effectively ensuring the bottom bearing capacity of the entire top subgrade layer and providing stable bottom foundation support for the installation of the railway track assemblies. This effectively guarantees the load-bearing capacity of the entire structure against static and dynamic loads under freight transport conditions.

This invention discloses a multifunctional atomizing agent for ancient book restoration, its preparation method, and its application, belonging to the field of ancient book preservation technology. The atomizing agent is a mixed solution containing chitosan quaternary ammonium salt and zirconium carbonate. The method for treating ancient books using this atomizing agent is as follows: after cleaning the ancient books to remove impurities, they are placed in a sealed deacidification device. The mixed solution of chitosan quaternary ammonium salt and zirconium carbonate is atomized and then introduced to spray the pages of the ancient books. The books are then dried in a ventilated environment at ambient temperature to complete the treatment. The atomizing agent and treatment method of this invention have multifunctional effects on ancient books, including deacidification, strengthening, consolidation, antibacterial properties, and anti-aging. It avoids the uneven treatment caused by the coffee ring effect and phenomena such as yellowing and fading. Furthermore, it simplifies the ancient book restoration process, enabling one-step atomization, significantly shortening the processing flow, reducing processing operations, shortening the processing cycle, and significantly improving processing efficiency.

The utility model relates to the technical field of rapid installation devices, and discloses a rapid installation device of a distribution box for electricity transformation, which comprises a fixed seat, an installation frame is fixed at the top of the fixed seat, and a plurality of installation holes are arranged in the installation frame; the device is provided with the positioning mechanism, positioning during installation of the distribution box is conveniently completed, the distribution box and the installation frame are fixedly connected through bolts, the fixing base and the installation frame form an L-shaped metal frame, stable mechanical support is formed through a right-angle structure, pressure caused by the weight of the distribution box and external vibration is dispersed, and inclination or displacement of the box body is avoided; the mounting rack can be mounted at a corresponding mounting position by using expansion bolts to adapt to different positions such as a wall surface, a stand column and an equipment cabinet, so that the purposes of quick positioning and mounting are achieved; and by arranging the reinforcing mechanism, fixation between the upper half threaded rod and the lower half threaded rod is conveniently completed, reinforcement of the outer side of the fixing plate is improved, and it is ensured that the fixing plate and the fixing base are stably connected.

The invention relates to the technical field of foundation reinforcement, in particular to soil pressure monitoring and early warning equipment in MJS construction, which comprises a drilling machine, a winch, a steel cable, a drill rod, a drill bit, a sleeve and a monitoring part, according to the invention, the following problems existing in the process of guniting and reinforcing a foundation soil body in the prior art can be solved: cement paste can only be sprayed by linearly moving upwards, the uniform distribution of the cement paste cannot be ensured, and the reinforcing effect on the soil body is influenced; the soil pressure of the side wall of a pile hole cannot be monitored, so that the construction process lacks controllability; by means of the multi-pipe type jet grouting pile technology, cement paste can be evenly diffused, stratum settlement can be effectively avoided, and the reinforcing effect is remarkable; according to the invention, the pressure of the soil on the side wall of the jet pile hole can be comprehensively monitored in multiple directions in the drilling and guniting processes, and the controllability in the construction process is ensured.

The utility model relates to the technical field of structural reinforcement, in particular to a prestressed concrete layer wrapping type reinforced concrete beam reinforcing structure which comprises reinforcing concrete arranged on a beam body, reinforcing ribs are arranged in the reinforcing concrete, and after the reinforcing ribs penetrate through the reinforcing concrete, the two ends of each reinforcing rib are fixedly connected with the beam body through fixing pieces respectively. One end of the reinforcing rib is connected with the fixing piece through a connecting piece, and the other end is connected with the fixing piece through a clamp; the reinforcing structure is simple in construction and low in cost, adopts a mode of combining the reinforcing ribs and the reinforcing concrete, fully utilizes the performance of the reinforcing ribs, improves partial lost internal force of the to-be-reinforced beam body through the prestress provided by the reinforcing ribs, and improves the strength of the to-be-reinforced beam body by utilizing the restraining effect of the reinforcing ribs on the to-be-reinforced beam body. After reinforcement, the new structure and the old structure can work cooperatively, the reinforcement effect is remarkable, and the method can be used for reinforcement of beam bodies of various sizes.

The utility model relates to the technical field of water pipe reinforcement, and provides a water pipe reinforcement structure for water conservancy and hydropower engineering, which comprises a bottom plate and further comprises a fixing assembly arranged on the outer surface of the bottom plate, the fixing assembly comprises a U-shaped plate fixedly arranged on one side of the outer surface of the bottom plate, and a circular shaft is fixedly arranged in the U-shaped plate; the semi-annular plate is rotationally arranged on the outer surface of the circular shaft and can fix a water pipe; the limiting assembly is arranged on the outer surface of the bottom plate; a water pipe is placed in the semi-annular groove, the semi-annular plate can rotate on the outer surface of the circular shaft to clamp and fix the water pipe, the outer surface of the water pipe is clamped and sleeved with the semi-annular plate, the protection pad is fixedly embedded in the semi-annular groove, and the protection pad can improve friction force, prevent the water pipe from sliding and protect the water pipe from being damaged. The rubber cushion block can be driven to move out of the circular groove by rotating the first adjusting screw rod and the second adjusting screw rod, and the water pipe is fixed according to the size of the water pipe.

The application provides a double-curved thin brick vault roof reinforcing method and reinforcing structure, which comprises the following steps: selecting two arch shells and removing original plaster layers; opening a plurality of first groove groups and a plurality of holes on the vault surfaces of the two arch shells; installing tie rods in each hole; filling high-ductility concrete in each first groove group, and pressing and smoothing a high-ductility concrete surface layer on the upper arch surface; performing an in-situ load test on the two arch shells; completing the reinforcement of the upper arch surface; opening a plurality of second groove groups on the lower arch surface; and filling high-ductility concrete in each second groove group. The double-curved thin brick vault roof reinforcing method provided by the application first reinforces part of the upper arch surface, then verifies the reinforcing effect by using the in-situ load test, and finally completes the reinforcement of the entire upper arch surface and performs the reinforcement of the lower arch surface, so that the reinforcing target of high pertinence and remarkable effect is achieved, the defects of the double-curved thin brick vault roof are solved, and the historical building value is preserved.

The application discloses a preparation method of MICP combined with molasses reinforced calcareous sand. The preparation method comprises the following steps: activating and culturing mineralization bacteria, preparing a molasses culture medium by using waste molasses, inoculating the activated mineralization bacteria liquid on the molasses culture medium, and after the OD600 value of the mineralization bacteria in the molasses culture medium is between 1.0 and 1.5, injecting the molasses culture medium containing the mineralization bacteria into the calcareous sand for reinforcement, so that the reinforced calcareous sand is obtained. The preparation method of the MICP combined with molasses reinforced calcareous sand disclosed by the application directly uses waste molasses as a carbon source to culture mineralization bacteria, greatly reduces the preparation cost, and is green and environment-friendly in the preparation process; by adding sugarcane residue with a proper proportion and length in the waste molasses, the viscous sugar silk and the sugarcane residue are uniformly distributed in the reinforced calcareous sand, so that the generation amount of the microbial-induced calcium carbonate crystal is improved, and the prepared calcareous sand has more excellent reinforcement effect, and the unconfined compressive strength can reach 2 MPa at most.