335results about How to "Improve structural safety" patented technology

The invention discloses a rural house structure optimization design method and system based on building information modeling, and relates to the technical field of building structure analysis design, and the method comprises the steps: obtaining geographical climate data, building user demand data and construction condition data of a to-be-built rural house; determining a house design variable set according to the acquired data; randomly generating an initial solution according to the value range of each variable parameter in the house design variables to construct an initial population; performing individual optimization on the initial population by using a genetic algorithm, screening individuals according to fitness, performing iterative genetic evolution operation including crossover and variation, and finally determining an optimal individual; and inputting target values of various variable parameters indicated by the optimal individual into a BIM construction module to determine a target BIM model for the rural house. Therefore, genetic algorithm optimization and a BIM modeling technology are organically fused, and the structural safety, the economical efficiency, the construction efficiency and the intelligent level of rural house design are improved.

The invention relates to the technical field of tunneling parameter prediction, in particular to a complex stratum TBM tunneling parameter real-time prediction method. According to the technical scheme, the method comprises the steps of data collection and preprocessing, model selection and training, model prediction and evaluation, and result application and feedback. According to the data collection and preprocessing, operation parameters are collected in real time through various sensors on TBM equipment, wherein the operation parameters comprise the cutterhead rotating speed, the penetration degree, the thrust, the torque, the total thrust, the gripper shoe pressure, the propelling speed, the current and the power. Real-time prediction of the TBM tunneling parameters of the complex stratum is achieved by fusing the machine learning algorithm, the tunneling parameters can be optimized in real time, and the construction efficiency is improved; the tunneling process is stabilized to guarantee the engineering quality; tool abrasion is reduced, energy consumption is reduced, and the construction cost is reduced; equipment faults and accidents are prevented, and construction safety is guaranteed; and construction technology innovation can be promoted, intelligent construction management is achieved, the comprehensive benefits of TBM construction are comprehensively improved, and efficient, safe and intelligent development of tunnel (roadway) engineering is promoted.

The invention discloses a method for improving the cooling effect of a pole winding based on a mixed-flow fan, and belongs to the technical field of cooling of high-rotating-speed and high-capacity hydraulic generators and pumped storage generator motors. Mixed-flow fans are arranged at the two ends of a magnetic yoke, and cooling air is divided into radial cooling air for cooling coils at the ends of the magnetic poles and axial cooling air entering the outer surfaces between the magnetic poles. An interelectrode outer surface ventilation cooling space is formed between every two adjacent pole windings, interelectrode ventilation partition plates which are axially arranged are arranged in the interelectrode outer surface ventilation cooling spaces, and separated axial ventilation air channels are formed by the interelectrode ventilation partition plates and the outer surfaces of the pole windings; therefore, rotor pole winding cooling of a high-rotating-speed and high-capacity hydro-generator and a pumped storage generator motor in which radial ventilation cooling cannot be adopted in a pole winding interelectrode area is ensured, and the problem that the difference between the cooling effects of the windward side and the leeward side of a traditional structure is large is solved.

The invention relates to structural health monitoring intelligent concrete for airports and a preparation method thereof, and the method comprises the following steps: adding a polycarboxylic acid water reducing agent into water, and mixing to obtain a water reducing agent solution; adding carboxylated multi-walled carbon nanotubes, silica fume and fly ash into the water reducing agent solution, and mixing to obtain a carbon nanotube suspension; performing ultrasonic treatment on the carbon nanotube suspension to obtain a carbon nanotube dispersion liquid; and adding the carbon nanotube dispersion liquid into the dry material mixture, and mixing to obtain the structural health monitoring intelligent concrete for the airport. Compared with the prior art, the conductivity of the concrete can be effectively improved, so that the concrete has the function of monitoring structural health.

The utility model discloses a squat silo multipoint discharging device, which relates to the technical field of bin discharging and comprises a distributing bin arranged at a feeding port above a squat silo, a central blanking pipe is arranged at the bottom of the distributing bin and communicated with a cavity of the distributing bin, and the distributing bin is provided with a discharging port. A discharging port of the center discharging pipe right faces the middle position in the squat silo, the center discharging pipe is used for laying the bottom of the squat silo, a plurality of side elephants are further arranged on the side wall of the material distribution bin in a downward inclined mode around a shaft and communicated with a cavity of the material distribution bin, the free ends of the side elephants extend towards the side wall of the squat silo, and the center discharging pipe is arranged on the side wall of the material distribution bin. A plurality of blanking openings are formed in the side articulated chutes in the length direction, a first pneumatic valve and a second pneumatic valve are arranged at the positions where the center blanking pipe and the side articulated chutes communicate with the distributing bins correspondingly, and the center blanking pipe and the side articulated chutes are used for blanking in a matched mode, so that materials are evenly stacked; and the problems of serious material grading and unbalance loading of the silo wall existing in the original single blanking point are reduced.

The invention discloses an intelligent laser cladding system and method for a stainless steel plate of a bridge support, and aims to realize accurate and efficient cladding processing and improve the surface performance of a material. The system comprises a six-axis multi-joint robot, a laser tracker, a laser cladding head, a wire feeding mechanism and an electrical control system. The robot controls the laser cladding head to move, the laser tracker monitors and adjusts the cladding process, the laser cladding head provides laser energy, the wire feeding mechanism supplies cladding wires, and the electric control system coordinates all the components to work. The method comprises the steps of matrix pretreatment, cladding system parameter setting, intelligent laser cladding and cladding layer finish machining and polishing treatment. By accurately controlling conveying of laser beams and metal wires and motion parameters of all parts, intelligent high-quality cladding machining of workpieces made of different materials and in different shapes is achieved, and the device is suitable for cladding of stainless steel plates with planes, convex surfaces and concave surfaces. According to the system and the method, the cladding precision and efficiency are improved, the cost is reduced, and the system and the method have wide industrial application prospects.

The invention relates to the technical field of LED lamps, solves the problem that existing lighting equipment lacks a flexible and visual operation mode, and provides an LED strip-shaped ceiling lamp and an intelligent lighting control method thereof. The LED lamp comprises a lamp body bottom shell, a power supply module, a light source module, a control circuit and a dial switch, wherein the power supply module is electrically connected with the light source module; the light source module comprises a lens bottom plate, a lamp panel, a lens and a lens buckle. The light source module is connected with the lamp body bottom shell through the lens buckle. The power supply module is arranged on the lamp body bottom shell, the power supply module is electrically connected with the control circuit, the control circuit is electrically connected with the dial switch, the dial switch comprises a preset number of dial gears, and different dial gears correspond to different brightness values and color temperature values. The illumination effect of the lamp can be easily adjusted according to requirements, and the lamp is suitable for different environments and use scenes.

The invention provides a curved beam bridge anti-overturning device utilizing a pulley block and an adjusting rod. The curved beam bridge anti-overturning device mainly comprises a steel strand, a fixed pulley, a movable pulley, a supporting rod, the adjusting rod, a steel sleeve, a limiting block, an anchor rod, an anchor ring, an anchoring block, a gasket, an anchor hole, a bolt, a hexagon head and a screw rod. By tensioning the steel strands and combining the pulley blocks, the device can effectively optimize force transmission in the beam body. Meanwhile, the arranged supporting rods can effectively restrain transverse displacement of the curved bridge and resist overturning moment of a single curved bridge. The two ends of the adjusting rod are connected with the supporting rod and the steel strand respectively, and efficient transmission and optimization of force between the supporting rod and the steel strand are achieved through the lever principle. When the curved bridge is subjected to eccentric load or dynamic load, the mutual connection of the structures can obviously optimize the force transmission in the bridge body and effectively restrain the transverse displacement of the bridge, so that the anti-overturning capability of the curved bridge is enhanced. The device provides an innovative solution for improving the safety of the curved bridge under the action of eccentric load or dynamic load.

The invention provides a prestressed reinforced concrete supporting structure which comprises at least one layer of horizontal support, each layer of horizontal support at least comprises a horizontal beam, at least one horizontal beam comprises at least two structural sections, and the structural sections of the same horizontal beam are connected in sequence. The adjacent structural sections of the same horizontal beam are connected into a whole through a post-pouring main supporting beam, the post-pouring main supporting beam is constructed after prestress is applied to the adjacent structural sections, and each structural section is of a reinforced concrete structure. The invention further provides a construction method of the prestressed reinforced concrete supporting structure. The horizontal beam is divided into at least two structural sections, and the structural sections are connected into a whole after prestress is applied to the structural sections, so that the complete horizontal beam is formed. The problems that an existing reinforced concrete supporting structure can only passively resist the external soil pressure of the foundation pit and the deformation of the foundation pit is large due to the fact that no prestress exists can be smoothly solved, and the safety of foundation pit construction is improved.

The invention relates to a universal auxiliary frame for a water elasticity ship model pool test and a use method. The universal auxiliary frame comprises a frame, the movable horizontal cross beam is connected with the frame supporting end face through a bolt in a horizontally adjustable manner; the vertical supporting rod is used for supporting the ship model and ensuring the stability of the ship model; the transverse gradienter and the longitudinal gradienter are respectively arranged at different positions of the frame and are used for ensuring the horizontal state of the frame. The frame is compact and reasonable in structure and convenient to operate, the frame is specially customized for the sectional type ship model, the structural safety and stability of the ship model in the hanging, transporting, equipment installing and testing processes are effectively improved through a firm and accurate supporting structure, and meanwhile in the testing process, the test efficiency is improved. The precision measurement system arranged in the frame can accurately monitor the swing period and the horizontal state of the ship model, and ensures the accuracy of the ballast position and the accurate correspondence between the ship model and the real ship mass distribution and the swing period.

The invention discloses a method for improving the interlayer performance uniformity of a large-size high-toughness 7xxx aluminum alloy pre-stretched super-thick plate, and relates to the field of improvement of interlayer performance differences of high-strength aluminum alloy pre-stretched super-thick plates. The method aims at solving the problems that in the subsequent part machining and application process of the 7xxx alloy super-thick pre-stretched thick plate, the performance difference of a plate thickness layer is large, the damage resistance of the position where the performance of the plate is weak is reduced, the part loses efficacy, and the model safety is reduced. The method comprises the steps of controlling the uniformity of cross-section structure components of a large-size cast ingot, performing strong rolling deformation of plate interlayer performance uniformity, and performing strong quenching for improving the hardenability of the plate. According to the plate prepared through the method, the bottleneck that the comprehensive performance of the plate is synergistically improved is broken through, the overall performance of the thick plate is improved, the service life of parts is prolonged, the structural safety is enhanced, and the market competitiveness of products is improved. The method disclosed by the invention is used for controlling the interlayer performance uniformity of the 7xxx large-specification, super-thick and ultrahigh-strength aluminum alloy pre-stretched thick plate.

The invention discloses a polymer electrolyte with low interface impedance and a preparation method and application thereof. The electrolyte comprises the following components in percentage by mass: 30-45% of alkene polymer, 10-25% of disodium salt and 35-50% of plasticizer, the disodium salt contains sodium tetrafluoroborate, and the mass of the sodium tetrafluoroborate is 50-60% of the mass of the disodium salt. The electrolyte is prepared by the following steps: uniformly mixing raw materials including an alkene polymer, disodium salt and a plasticizer under a protective atmosphere, pouring the mixture on a mold, and drying. According to the solid-state sodium battery prepared based on the polymer electrolyte provided by the invention, the problems of serious side reaction between the electrolyte and an electrode interface and high interface impedance are effectively solved, and the cycling stability and the structural safety of the solid-state sodium battery are greatly improved. Tests show that the sodium battery provided by the invention circulates for 650 circles at the rate of 1C, and the maximum capacity retention rate can reach 94.4%.

The invention relates to the technical field of prefabricated concrete floor slabs, in particular to a prefabricated concrete floor slab structure of a full-prefabricated assembly type concrete frame, which comprises a floor slab outer frame, and a plurality of steel bars are arranged in the floor slab outer frame; the four first assembling openings are formed in the four corners of the top face of the floor outer frame correspondingly; the four second assembling openings are formed in the four corners of the bottom face of the floor outer frame correspondingly; the cable-stayed structure is arranged on the floor outer frame; and the tensioning structure is arranged in the floor outer frame. Compared with the prior art, the reinforcing steel bars are fixed in the structure to form a transverse and longitudinal staggered layout, a solid foundation is provided for subsequent steps, and then the stability of the whole structure is ensured by installing the four anti-falling hooks on the reinforcing steel bars at the four corners and fixing the installation base on the reinforcing steel bars in the middle.

The invention discloses a design method of a special-shaped large-section annular prestressed beam based on a finite element model, and relates to the technical field of civil engineering. The problems that due to the fact that a special-shaped ring beam is symmetrically arranged and tensioned, local stress is uneven, local concrete cracks possibly occur, and the stability of the whole structure is affected are solved. Through the finite element model and the finite element analysis technology, in combination with the specific stress characteristics of the special-shaped large-section ring beam, optimized arrangement of the prestressed tendons is achieved, the stress uniformity and stability of the structure are ensured, asymmetric prestressed tendon arrangement can be flexibly adjusted according to specific engineering requirements, the tension values borne by the section are consistent, and the construction efficiency is improved. According to the ring beam tensioning method, the integrity of the tensioned ring beam is better, the construction precision and economical efficiency of the structure are improved, risks in the construction process are effectively reduced through step-by-step construction and application of the life and death unit technology, and the construction efficiency and the structure safety are improved.

The invention discloses a method and device for determining the range of a rail transit structure control protection area in a karst environment, computing equipment and a computer storage medium. According to the technical scheme provided by the invention, basic address data and structural parameters of the existing structure are acquired, and the position of the existing structure in a geological section and a corresponding covering layer type are determined; a corresponding position relation model of the existing structure and the external operation relative space is established; according to the structure type, the structure parameters and the corresponding covering layer type of the existing structure, based on the position relation model, a range parameter calculation mode under the critical condition is determined, and a control protection area range under the corresponding critical condition is obtained. According to the method, the external operation influence range, the karst collapse influence range and the existing structure affected range are comprehensively analyzed, the control protection area range under the critical condition influencing the existing structure is accurately determined, corresponding potential threats are scientifically analyzed, and the safety of the urban rail structure is effectively improved.

The invention discloses a modular unfolding type container house, and relates to the technical field of container houses, the modular unfolding type container house comprises a container base, the inner wall of the container base is rotatably connected with a container body, the interior of the container body is slidably connected with a folding plate, and the container house can flexibly adapt to various terrains and uneven grounds by horizontally adjusting the arrangement of a folding mechanism; the limitation that a traditional container house must be installed on the horizontal plane is broken through, and compared with the situation that before a transmission container is installed, the bottom of the container must be horizontally laid, then the container can be installed, time and labor are consumed, and the labor use cost is increased; the box body can be installed at different inclination angles by automatically adjusting rotation of the warping plate, the installation process is simplified, additional leveling work needed due to uneven terrain is reduced, and therefore the installation efficiency is improved, and the installation cost is reduced.

The invention discloses a marine derrick structure modeling method and system, and relates to the technical field of structure modeling, and the method comprises the steps: obtaining the point cloud data of a derrick main leg and a back cross beam; performing feature selection and filtering on the point cloud data to obtain effective point cloud data; constructing a curved surface according to the effective point cloud data, and establishing a derrick numerical model in combination with the actual sizes of the derrick main leg and the back cross beam; the method comprises the following steps: acquiring measured derrick vibration data by using one-way vibration sensors arranged on a derrick main leg in two directions; revising an elastic model of the derrick numerical model according to the derrick vibration data to obtain a revised derrick numerical model; according to the cross feature scale factor and the cross feature guarantee criterion, in combination with the revised derrick numerical model, obtaining a revised modal parameter, and constructing the derrick numerical model; and an accurate model basis is provided for safety evaluation.

The invention relates to the technical field of wind power generation, in particular to a vertical axis wind turbine with blades rotating in a self-adaptive mode along with wind speed changes. The two vertical main shafts are arranged at the upper end and the lower end of the supporting cylinder; the base is arranged at the bottom end of the vertical main shaft located at the bottom; the turning system is arranged in an inner cavity of the supporting cylinder; one ends of the two sets of supporting shafts are connected with the two sides of the turning system correspondingly, and the other ends of the supporting shafts extend out of the supporting cylinders; the blade is arranged at the other end of the supporting shaft; when the turning system is started, the supporting shafts on the two sides can be driven to drive the blades to rotate and adjust in the same direction at 0-90 degrees. By means of the direction changing system, the blades can automatically adjust the rotation angle and change the blade load according to the wind speed change, safe shutdown of the wind turbine is ensured, the risk that the supporting arms deform or are damaged due to overload is reduced, the overall structural safety is improved, and the service life is prolonged.

The utility model provides a light-emitting diode (LED) box body with a protection function, which belongs to the technical field of LEDs and comprises a box body made of aluminum materials. A first boss and a second boss are arranged on the edges of the two sides of the box body respectively, a lock catch device is integrated on the first boss, and a lock hole matched with the lock catch device is formed in the second boss. The rear cover of the box body adopts a buckle type connecting structure; protection corners are arranged at the four corners of the box body, damping rods and springs are arranged on the protection corners, and the damping rods are sleeved with the springs. The box body is also provided with a wire buckle. A handle is arranged on the box body and connected with the box body through a hinge mechanism. When the device is used, a user can quickly open or close the rear cover through a buckle type connecting structure adopted on the rear cover, namely at least two groups of symmetrically distributed buckles are clamped in the clamping grooves of the box body, so that the user can more conveniently and quickly maintain, overhaul or upgrade equipment in the box body, and the maintainability of the device is improved.

The application discloses a quick deployment control method, system and equipment for a fabricated movable building cabin, and belongs to the field of mobile buildings. The method comprises the following steps: after the fabricated movable building cabin is moved to a deployment area, a topographic survey and target landing attitude solving are performed to determine first driving parameters; an electric mechanical adjusting mechanism reaches a preset profiling attitude and is synchronously lowered; a driving current signal is synchronously collected, a current loop inflection point is identified, cabin body inertia measurement and solving are triggered, after landing, idle stroke is stopped and a load establishment stage is entered, closed loop load establishment analysis is adopted to determine an initial load, and cabin body initial landing is completed; structure strain monitoring is performed on the cabin body main structure, equivalent interference torque is analyzed, and a driving disturbance adjuster performs directional triggering and flexible service deployment adjustment. The application solves the technical problems of the prior art, such as complicated deployment process, insufficient identification accuracy under complex working conditions, and insufficient deployment efficiency and safe and stable operation.

The application belongs to the technical field of lithium ion batteries, and particularly relates to a composite aluminum foil current collector, a positive plate and a lithium ion battery. The composite aluminum foil current collector comprises a current collector and a safety coating layer arranged on at least one side of the current collector; the safety coating layer comprises ceramic particles, a conductive agent and a binder. The current collector comprises a polymer material base layer and aluminum layer current collectors arranged on both sides of the polymer material base layer. The positive plate designed by combining the composite aluminum foil with the safety coating layer and assembled with the negative plate and the separator by using the lamination process to obtain the battery cell structure can significantly improve the safety performance of the battery under the mechanical abuse condition, and can smoothly pass the needle puncture and heavy impact tests.

The utility model discloses a building tower crane guardrail with good safety performance, which comprises a plurality of platform-shaped bases, a plurality of rectangular upright posts and a plurality of guardrail frames, guardrail nets are fixedly welded in the guardrail frames, and rectangular insertion blocks are arranged at the upper ends of the center positions of the plurality of platform-shaped bases. The guardrail frame is matched with the first bolt to be fixed in the opening of the U-shaped mounting block, the threaded column on the supporting seat is inserted into the circular hole in the guardrail frame, the supporting seat is inserted into the L-shaped open groove to be matched with the stud to be fixed, the gasket nut is in threaded connection with the threaded column in a sleeved mode, and then the gasket nut and the guardrail frame are pressed and fixed. The guardrail is effectively locked and fixed, the structural stability and the safety performance are improved, a plurality of fixing rods are inserted into circular inserting grooves in a plurality of rectangular stand columns correspondingly, the fixing rods are locked and fixed through second bolts, and two steel wire barbed ropes are fixedly wound around the fixing rods between every two adjacent rectangular stand columns, so that personnel are effectively prevented from climbing the guardrail.

The application discloses a whole lifting special-shaped single-layer spherical net shell prestressed steel strand cable reinforcing method, a middle support rod is arranged below a center ring of a special-shaped single-layer spherical net shell structure, a plurality of reinforcing steel strand connecting pieces are arranged on the lower end of the middle support rod in a ring direction; a plurality of tension connecting pieces are arranged on an outer ring beam of the net shell structure in a ring direction, prestressed steel strand cables are arranged between the reinforcing steel strand connecting pieces and the tension connecting pieces and are tensioned, the lifting part of the net shell is reinforced, and a chord self-balanced net shell reinforcing structure is formed. The method of the scheme solves the difficulty that the special-shaped single-layer spherical net shell has poor rigidity and is easily damaged in the lifting process. Through the prestressed steel strand cable reinforcing method, the single-layer spherical net shell structure with poor rigidity is converted into the chord self-balanced net shell structure with good rigidity, and the structural safety of the whole lifting net shell structure is ensured.

The central station pipeline installation support comprises pipeline bodies, aluminum profile transverse rods and aluminum profile vertical rods, the pipeline bodies are evenly arranged on the aluminum profile transverse rods, the pipeline bodies are fixed to the aluminum profile transverse rods in a limited mode through fixing pieces, the aluminum profile vertical rods are symmetrically arranged below the two ends of each aluminum profile transverse rod, and bottom supporting feet are arranged at the bottoms of the aluminum profile vertical rods. And fixing holes are formed in the bottom supporting legs. The aluminum profile is adopted as a basic frame of the support, the modularization degree is high, assembling and splicing are convenient, the structural stability and reliability of the whole support are guaranteed, the whole support is balanced and stable in structure, the pipeline bodies are evenly arranged on the support, and therefore the stability and safety of the whole structure are improved, and the service life of the support is prolonged. The design of the bottom supporting legs can also enlarge the contact area between the support and the placing face, the support can be placed more stably and reliably, then the support and the placing face are installed and fixed through the fixing holes, the installation firmness of the support is effectively guaranteed, installation and disassembly are easy and convenient, and actual operation is convenient.

The invention relates to a construction technology of high-impermeability type concrete, in particular to a crack control method of high-impermeability type mass concrete, which comprises the following steps: optimizing the internal microstructure of the concrete, reducing the internal porosity of the concrete, and weakening the microsiphoning effect of the concrete on water molecules; materials are selected and optimized, so that the generation of hydration heat is reduced; the synergistic regulation effect of multiple admixtures is exerted, and the efficient water reducing agent is used, so that the water consumption is reduced, the water cement ratio is reduced, and the compactness and impermeability of the concrete are improved; a proper amount of expanding agent is added to compensate the shrinkage of the concrete; and quality control in the construction process: manufacturing a 1: 1 entity sample plate section, and performing systematic analysis on the cracking performance of the mass concrete. According to the crack control construction method for the high-impermeability mass concrete, provided by the invention, the crack resistance and impermeability of the concrete are comprehensively improved from the thought of optimizing the internal microstructure of the concrete.

The invention discloses a clinker silo and a layout method thereof. Bending prestressed tendons are arranged at the edge of a door opening, and lintels and buttresses are arranged around the door opening, so as to effectively avoid stress concentration at the door opening due to over-dense anchoring of prestressed tendons. By arranging plum blossom-shaped prestressed tendons below a silo wall ring beam, it is possible to avoid excessive local pressure in a silo wall section due to over-dense distribution of prestressed tendons, while ensuring that the prestress meets design requirements. The strength weakening of the silo wall caused by opening a hole is effectively reduced, the strength and rigidity of the structure are ensured, the stress concentration phenomenon near the hole opening is alleviated, and the safety and reliability of the structure are improved.

The embodiment of the invention provides an automobile transport ship deck structure and a ship. According to the deck structure, a deck in the lower area of a cargo hold is in a continuous sheet deck form; a deck in the upper area of the cargo hold adopts a steel framework steel plate deck form; and the structural strength of the hull meets the design requirement. According to the embodiment of the invention, the number of continuous decks at the upper part is reduced, the continuous decks are changed into a frame structure, small thin plates are laid on the frame, and the structure is reinforced, so that on the premise that the structural strength requirement of the ship body is met, the thin plates are prevented from being damaged in the processes of cutting, blanking, assembling, welding, placing, transferring, turning over, hoisting and the like; and a large amount of inevitable repairing work caused by deformation is avoided, so that the construction cost is reduced, the construction time is shortened, and the safety and economical efficiency of the ship structure are improved.

The invention relates to the technical field of reinforcement, in particular to a device and a method for enhancing the shock resistance of a concrete member by using a steel-clad reinforcement method, and solves the problems that the resistance of a dynamic load (such as an earthquake) is not considered sufficiently, and the reinforcement effect on a large batch of concrete members in the same area is poor. Comprising a concrete column, and the outer side of the concrete column is provided with a high-seismic-resistance steel-clad reinforcing mechanism. When an earthquake occurs, the overall anti-seismic performance of the concrete column can be improved through the specially-made U-shaped steel plates and the reinforcing layer formed by curing the anti-seismic curing agent, and the U-shaped steel plates located on the multiple concrete columns installed in the same area can be connected through the concrete column connecting and pressure-resisting mechanism; by means of the technical scheme, the anti-seismic performance of equipment is improved, and meanwhile the overall compressive strength of a plurality of reinforced structures installed in the same area can be improved.

This invention belongs to the field of impact impeller technology, and specifically relates to a detachable water bucket impact impeller structure and its assembly method. The technical solution is as follows: A detachable water bucket impact impeller structure includes a hub and several water buckets. Each water bucket includes a handle and blades. Several mounting grooves are provided on the edge of the hub, and the handle mates with the mounting grooves. A wedge-shaped key is provided between the handle and the mounting grooves. A limiting ring is bolted to the surface of the hub, and the limiting ring covers the wedge-shaped key. This invention provides a detachable water bucket impact impeller structure and its assembly method, facilitating water bucket replacement and ensuring reliable connection between the water buckets and the hub.

The utility model relates to the field of U-shaped grooves, and discloses a waterproof U-shaped groove structure which comprises a U-shaped groove body, a water collecting groove and waterproof geotechnical cloth, and a plurality of drainage pipes penetrating through retaining walls are pre-buried in the retaining walls on the two sides of the U-shaped groove. The water collecting tank is buried in soil outside the retaining wall, the upper end of the water collecting tank is covered with water permeable bricks for blocking the soil, and the water collecting tank is communicated with the drainage pipe; the waterproof geotechnical cloth is obliquely buried in soil on the outer side of the retaining wall, and the lower side of the waterproof geotechnical cloth extends into the water collecting tank; in the waterproof U-shaped groove structure, the waterproof geotechnical cloth divides the soil outside the retaining wall into the shallow upper-layer soil and the majority of the lower-layer soil, and accumulated water infiltrated in the upper-layer soil can be guided into the water collecting groove along the waterproof geotechnical cloth and finally discharged along the water discharging pipe; the lower soil layer is covered by the waterproof geotechnical cloth, so that the lower soil layer is not easy to permeate by rainwater even in a rainy season, the risk of deformation and collapse of the soil due to rainwater permeation is reduced, and the structural safety of the U-shaped groove is improved.