700 results about "Rapid construction" patented technology

The invention provides a construction progress plan intelligent generation method based on a Monte Carlo tree search algorithm, and particularly relates to a construction progress plan intelligent generation and optimization technology based on a Monte Carlo tree search (MCTS) algorithm. According to the technology, a traditional MCTS algorithm is improved, and rapid generation, real-time dynamic adjustment and resource optimization configuration of a construction progress plan are achieved. Specifically, measures such as dynamic adjustment of an exploration coefficient, nonlinear adjustment of a prior probability and introduction of depth regularization are adopted to improve a traditional upper limit confidence coefficient (UCT) formula. And meanwhile, the total construction period is minimized by combining a dependency relationship between construction steps and constraint conditions of resource finiteness and utilizing a reward function with a negative value of the construction period as a core. Finally, the technology can visually output a construction progress plan in a Gantt chart form, remarkably improves the construction efficiency, reduces the dependence on high-end construction management talents, has a good real-time response capability, and has a wide engineering application prospect.

The invention relates to the technical field of tunnel construction, and discloses a rapid construction method and system for a lower step with an inverted arch of a horizontal rock stratum large-section tunnel, and the method comprises the steps: constructing a three-dimensional geological modeling system to carry out advanced geological forecast on a tunnel construction region; the three-arm drill jumbo is used for conducting self-positioning, geological self-adaptive intelligent hole arrangement, dynamic optimization of drilling parameters and dynamic allocation of drilling tasks through three-arm cooperative control; calculating the vector deviation between the actual excavation contour and the design contour; marking a preferential injection area based on a three-dimensional laser point cloud technology, and dynamically adjusting an injection track and thickness according to back break data; a multifunctional drilling and grouting integrated trolley is adopted for implementing pipe shed supporting, advanced small guide pipe reinforcement, pre-grouting reinforcement and anchor rod reinforcement; the main mechanical arm assists the trolley in drilling and laser scanning acceptance inspection of the feet-lock bolt; re-spraying to the designed thickness by adopting a wet spraying manipulator; the problems that an existing tunnel lower step inverted arch construction method is low in construction efficiency and large in construction risk are solved.

The invention discloses a lightweight knowledge graph rapid construction method and system based on an NLP technology. The method comprises the steps of preprocessing an unstructured text and segmenting the unstructured text into semantic segments; unsupervised clustering is combined with the contour coefficient to determine the optimal clustering number, and a semantic association fragment cluster is obtained; performing word segmentation, part-of-speech tagging, NER and entity linking on the fragment cluster, extracting an entity and initial relationship, and fusing semantic similarity, TF-IDF word frequency collaboration degree and co-occurrence frequency to calculate a relationship edge weight; constructing a lightweight knowledge graph; in the question and answer stage, questions are disassembled through a process engine, related sub-graphs are retrieved, and answers with reasoning links are generated. The system correspondingly comprises a text preprocessing module, a clustering module, an entity relation processing module, a graph construction module, a question and answer reasoning module and a storage module. According to the method, the construction cost is reduced, the interpretability and the module coupling degree are improved, multiple scenes such as government and enterprise public opinions and medical assistance are adapted, and the problems of weak generalization, poor real-time performance and'black box 'in the traditional technology are solved.

The invention provides an automatic construction method and equipment for a building electromechanical system circuit, and the method achieves the quick construction of a building electromechanical system and the efficient retrieval of key paths of equipment through abstracting the equipment attributes and the connection relation into a directed graph and automatically generating the connection relation between the equipment through a link prediction graph neural network model. The method can be used for automatically generating the mutual connection relation between the devices according to given device attributes, so that rapid construction of a building electromechanical system and efficient retrieval of key paths of the devices are achieved, and basic data are provided for the functions of device fault positioning, abnormal energy consumption analysis and the like in the building operation and maintenance stage. According to the method, the efficiency and accuracy of electromechanical system design are improved, reliable basic data support is provided for the functions of equipment fault positioning, abnormal energy consumption analysis and the like in the building operation and maintenance stage, meanwhile, a data link of electromechanical system design, construction and operation and maintenance is broken through, and technical support is provided for digital and intelligent transformation of the building industry.

The invention discloses a method and a system for quickly constructing a railway station structure engineering demand parameter matrix, which are characterized in that a time-history load function, a time-history load working condition and a ground acceleration of a railway station structure model are automatically created and set through a Python programming language on the basis of an application programming interface (API) opened by MIDAS Gen design software, and the time-history load function, the time-history load working condition and the ground acceleration of the railway station structure model are automatically established and set through a Python programming language. The method comprises the following steps of: firstly, carrying out time-history analysis on a plurality of key components, then carrying out elastic-plastic time-history analysis in batches, extracting a corner of a non-elastic hinge of the key components and interlayer acceleration of the floors, and finally, automatically assembling and forming an engineering demand parameter (EDP) matrix, so that the convenience and feasibility of shock resistance toughness evaluation of the railway station are remarkably improved.

The invention relates to a method and a system for constructing a BIM model for quickly constructing a clustered medical building, and the method comprises the steps: constructing a thinking tree with multiple attributes based on design demands, carrying out the pruning in combination with a medical prototype library and compliance constraints, generating a DAG according to a leaf node task of the thinking tree after pruning, and carrying out the construction of the BIM model. The method comprises the following steps of: establishing a DAG (Distributed Acyclic Graph), endowing a DAG edge with an interdependent key level based on cluster linkage between tasks, forming a weighted DAG, determining task priority and resource allocation by a planning agent according to the weighted DAG, generating an execution sequence, processing the tasks by a BIM code generation agent according to the sequence, and generating a component code by adopting a thinking chain process of grading confidence coefficient scoring; at the end of each stage, calculating a confidence coefficient according to node attributes and medical geometric rules; and if the threshold value is lower than the threshold value dynamically adjusted based on the complexity of the cluster unit, adjusting and restarting the thinking chain. When the confidence coefficient is continuously too low or the key task cluster is completed, the check and correction agent intervenes, and the generated code is checked and corrected; and collecting the corrected codes to construct a BIM model.

The invention discloses a chamber supporting method and structure based on ultraviolet curing resin and a construction device. The construction method comprises the steps that a flexible ultraviolet light curing resin fiber belt is positioned at the bottom of one side of the inner wall of the chamber, and a fixing anchor rod is driven into the flexible ultraviolet light curing resin fiber belt for fixing; an arch-shaped support is installed, and a telescopic supporting mechanism is installed on the arch-shaped support in a sliding mode; the flexible ultraviolet light curing resin fiber belt is tightly attached to the inner wall of the chamber and is annularly unfolded along the inner wall of the chamber, and telescopic supporting mechanisms are adopted for supporting the flexible ultraviolet light curing resin fiber belt at certain intervals; tearing off a light-proof film on the flexible ultraviolet light curing resin fiber band, and irradiating the flexible ultraviolet light curing resin fiber band with ultraviolet light; and after the flexible ultraviolet light curing resin fiber belt is completely cured, the telescopic supporting mechanism is contracted, the arched support is removed, and construction of the chamber supporting structure is completed. The method has space adaptability, deformation coordination and rapid construction capacity, and efficient and stable supporting of the chamber is achieved.

The invention provides a three-step multi-working-face short-circulation weak-blasting step-pitch-control rapid construction method, which comprises the following steps of: dividing the section of a thin-layer schist tunnel into four parts, namely an upper step, a middle step, a lower step and an inverted arch, and carrying out excavation and support construction on the upper step, the middle step, the lower step and the inverted arch; by means of reducing the height of an upper step, jointly constructing short-step excavation, loose blasting and mechanical excavation, dynamically adjusting the combination of construction working faces and the like, it is guaranteed that thin-layer schist tunnel construction achieves the purposes of rapidly closing and forming a ring, reducing surrounding rock disturbance and improving construction safety and efficiency.

This invention provides a rapid construction device and method for the shaft wall of a reverse-construction pipe jacking shaft. It includes a ring-shaped rotating component, a driving component on one side of the rotating component to drive its rotation, multiple lifting components above the rotating component, and a casting template below the lifting components. This invention, by setting up the rotating component, driving component, lifting components, and casting template, forms a rapid construction device for the shaft wall of a reverse-construction pipe jacking shaft. This changes the conventional method of multiple material hoisting operations using cranes during reverse-construction shaft wall construction, reducing the number of hoisting operations, significantly shortening construction time, and greatly improving construction efficiency. It solves the problems of long construction time and difficult quality control associated with multiple material hoisting operations using cranes in conventional reverse-construction shaft wall construction.

The invention discloses a cable assembly corrugated steel arch bridge and a construction method thereof.The arch bridge comprises foundations on the two sides and a corrugated steel arch shell structure arranged between the foundations in a spanning mode, a corrugated steel arch shell is composed of at least two corrugated steel arch rings arranged in the bridge width direction, and each corrugated steel arch ring is composed of a plurality of corrugated steel arch plates which are sequentially spliced in the arch direction; each corrugated steel arch plate comprises connecting side plates on the periphery and a steel corrugated plate located in the connecting side plates, a plurality of transverse connecting components are arranged on the steel corrugated plate in the width direction, and the transverse connecting components are fixed to the steel corrugated plate and extend out of the connecting side plates in the bridge width direction, so that the transverse connecting components of the adjacent corrugated steel arch rings are connected in the bridge width direction; and an integral corrugated steel arch shell structure is formed. According to the construction method, the supporting towers are arranged on the two sides of the valley, the valley-spanning main cable is tensioned, the end arch sections and the middle-span arch plates are hoisted in a blocking mode in cooperation with the cable-stayed maintaining system, symmetrical assembling is conducted, and the construction method is suitable for rapid construction of the deep valley corrugated steel arch bridge with the complex terrain.

The invention relates to the technical field of civil engineering materials, in particular to a cement-based composite coiled material for emergency rescue and a rapid construction method.The cement-based composite coiled material for emergency rescue comprises a stereoscopic three-dimensional structure fabric and hydraulic cement-based filler, the stereoscopic three-dimensional structure fabric is filled with the hydraulic cement-based filler, and the hydraulic cement-based filler is arranged in the stereoscopic three-dimensional structure fabric. One side of the bottom of the three-dimensional structure fabric further comprises a waterproof wear-resistant coating; the hydraulic cement-based filler is prepared from the following components in parts by weight: 30 to 45 parts of high belite sulphoaluminate cement, 10 to 20 parts of ordinary Portland cement, 10 to 15 parts of fly ash, 5 to 8 parts of alpha-semi-hydrated gypsum, 3 to 5 parts of an expanding agent, 0.5 to 1.5 parts of a polycarboxylic acid type water reducing agent, 25 to 35 parts of silica sand and 0.1 to 0.8 part of a thickening time control agent. The prepared cement-based composite coiled material for emergency rescue has good tensile property, and the prepared cement-based composite coiled material meets the one-day compressive strength gt; the 28-day compressive strength is gt; the pressure is 65 MPa; the one-day tensile strength is gt; 3.5 MPa, 28-day tensile strength gt; and the performance index requirement of 5.5 MPa is met.

The invention belongs to the technical field of underground gas storage, and particularly relates to an energy-storage and hydrogen-storage modified asphalt slip layer for an underground rock cave and a preparation method of the energy-storage and hydrogen-storage modified asphalt slip layer. The modified asphalt slip layer disclosed by the invention has a lubricating effect, and can promote interlayer slip between structures and reduce the friction resistance of the contact surface of the concrete lining and the steel lining, so that the tensile stress of the steel lining is reduced, and the fatigue damage of the steel lining of a sealing layer caused by frequent inflation and deflation is relieved. Wherein through the modification of the styrene-butadiene-styrene block copolymer, the slippage layer has higher durability; the long-fiber polyester felt base cloth and the talcum powder are used, so that the thickness of the slip layer is increased and can reach 5-6 mm; and the viscosity of the slip layer is increased by using the hot melt adhesive, so that the slip layer can be quickly adhered to a structure to realize quick construction. An effective solution is provided for reducing fatigue damage and deterioration of the sealing layer steel lining and guaranteeing the sealing performance of the underground rock tunnel energy storage and hydrogen storage facility, and the method is suitable for large-scale application and popularization.

The invention discloses a straight rib feeding and conveying mechanism, and relates to the technical field of tunnel construction. The feeding assemblies are arranged on the two sides of the trolley; the material receiving assembly comprises a plurality of material receiving and conveying devices which are sequentially arranged at intervals in the axial direction of the tunnel, and each material receiving and conveying device comprises an upper arc-shaped conveying chain and a lower arc-shaped conveying chain which are distributed up and down; the feeding assembly is located between the upper arc-shaped conveying chain and the lower arc-shaped conveying chain. A single straight rib output by the feeding assembly is located in a hooking path of a material receiving hook in the upper arc-shaped conveying chain and conveyed upwards along the outer side of the upper arc-shaped conveying chain. A single straight rib output by the feeding assembly can fall into the lower arc-shaped conveying chain connecting material hook and is conveyed downwards along the outer side of the lower arc-shaped conveying chain. By the adoption of the scheme, conveying can be achieved through the trolley, a plurality of straight ribs can be sequentially arranged in the side wall direction of the tunnel through the arc-shaped conveying chain, rapid construction is facilitated, and the construction efficiency is improved.

The utility model discloses a rectangular foundation trench hole-forming device capable of rapidly excavating soil, which belongs to the field of capital construction equipment and comprises a mounting bracket, a rectangular hole-forming frame, a plurality of vibration devices and an auger soil-excavating device, the mounting bracket is mounted at the output end of an excavator, the vibration devices are mounted at the bottom end of the mounting bracket, the rectangular hole-forming frame is mounted at the output ends of the vibration devices, and the auger soil-excavating device is mounted on the rectangular hole-forming frame. The driving device is installed on the installation support, the top end of the drill rod penetrates through the installation support and is fixedly connected with the output end of the driving device, the bottom end of the drill rod penetrates through and extends out of the rectangular hole forming frame, and the drill rod is slidably connected with the top wall of the rectangular hole forming frame; the auger blade is fixedly wound on the side wall of the drill rod, and soil outlet holes are formed in the side wall of the rectangular hole forming frame. According to the utility model, the rectangular forming hole frame extends downwards into the soil through the vibrating device, the auger blades rotate to crush the soil synchronously and discharge the soil in the rectangular forming hole frame from the soil outlet holes, so that the rapid construction of the rectangular foundation trench is completed, and the working efficiency is improved.

The invention provides a construction method and system for a closed stirrup main reinforcement vertical unmatched block reinforcement component. The construction method comprises the steps that S1, stirrups are installed through stirrup comb tooth rods in a jig frame, and a framework is hoisted into the stirrups and temporarily connected with the jig frame; s2, main reinforcement comb tooth rods are installed on the framework, and main reinforcements are inserted into the bottom positioning tool and clamped on the main reinforcement comb tooth rods; s3, a main reinforcement supporting tool is installed on the top of the framework, the main reinforcement supporting tool supports the top of a main reinforcement, a drag hook reinforcement is installed, bound and fixed, the main reinforcement is temporarily bound and fixed to the stirrup on the lowest layer, and a block reinforcement component is formed; s4, the stirrup comb tooth rod is temporarily fixed to the framework, the block steel bar component is hoisted and connected with the previous section, and the framework, the main bars and the stirrups are bound and fixed; s5, the block reinforcing steel bar components are folded; and S6, the scattered binding stirrups are installed. The rapid construction of the bridge tower reinforcing steel bars is realized under the conditions that closed stirrups are interlocked, the reinforcing steel bars cannot be welded and the performance of hoisting equipment is limited.

The invention discloses a low-code application rapid construction system based on visual dragging, and relates to the technical field of application software construction, which comprises a code acquisition module, an action vector marking module, a demand vector acquisition module and an application software construction module, the method has the advantages that the core link of code writing in traditional development is bypassed, application software is generated after demand input is achieved, the code writing link is bypassed, non-technical users can obtain available applications only by describing demands without mastering programming skills, complex installation is not needed, operation is extremely simple, national development becomes possible, and the method is worthy of popularization and application. The speed is greatly increased depending on code reuse, basic codes accumulated by the code collection module can be directly called, repeated coding is omitted, it is ensured that the retrieved codes are highly matched with requirements, common requirements are quickly responded, personalized scenes are covered, and the problem that functions are not matched or missing is solved.

The invention relates to the technical field of sequencing, in particular to a Tn5 transposase-based next-generation sequencing method and a DNA library rapid construction kit, and particularly provides a Tn5 transposase-based next-generation sequencing DNA library rapid construction kit, a next-generation sequencing method and a next-generation sequencing DNA library construction method, and the kit comprises a reagent for constructing a next-generation sequencing DNA library. The Tn5 transposase is adopted for double-end Index library building sequencing, the library building process can be simplified, high efficiency and accuracy of high-throughput sequencing can be ensured, DNA fragmentation and linker addition are achieved in a single step by means of the unique characteristics of the Tn5 transposase, the sequencing efficiency and data management flexibility are improved by introducing the double-end Index, and the method is suitable for large-scale popularization and application. Each Index sequence ensures high specificity and traceability, meanwhile, the sequencing method can effectively work under the condition of low initial template quantity, and the application range is expanded.

The utility model relates to the technical field of steel structure hoisting, in particular to a hoisting device for steel structure construction, which comprises a mounting box, a hoisting ring, lead screw motors, a sliding plate and the like, the top of the mounting box is connected with the hoisting ring, the lead screw motors are mounted on the front side and the rear side in the mounting box, and lead screws of the two lead screw motors are connected with each other. Sliding plates are slidably connected to the front side and the rear side in the mounting box, and lead screws of the lead screw motors are in threaded connection with the sliding plates. The two clamping frames can be driven by the lead screw motor to move in the direction close to each other, the clamping frames can clamp a steel structure, then a worker can hoist the steel structure to a construction position, the steel structure is fixed in an automatic clamping mode, the working efficiency can be improved, the requirement for rapid construction is met, and the labor intensity of workers is lowered. And the steel structure can be prevented from shaking or inclining in the hoisting process, so that the steel structure can be prevented from colliding with other structures or equipment.

The invention relates to a tower crane, and discloses a tower crane and a lattice type detachable steel beam foundation thereof, the tower crane comprises two groups of lattice column steel beam assemblies, and a tower crane connecting beam is fixedly mounted between the two groups of lattice column steel beam assemblies through bolts; the latticed column steel beam assembly comprises two latticed columns and two parallel main cross beams fixedly installed between the two latticed columns through bolts, two oppositely-arranged locking beams are fixed to the upper ends of the latticed columns, and the upper end faces of the two oppositely-arranged locking beams jointly form a main cross beam end installation face used for fixing the ends of the main cross beams. And the two ends of the tower crane connecting beam are fixedly mounted on the main cross beam through bolts. According to the invention, the tower crane can be put into construction production earlier and faster in foundation pit engineering, and can be quickly disassembled and reused after completion, or can be used under the condition of saving resources, and the like.

The invention discloses a novel subsection bonding prestressed anti-pulling and anti-floating pile and a construction method thereof, and relates to the technical field of buildings. The novel subsection bonding prestress anti-pulling and anti-floating pile comprises a pile body part, specifically, the novel subsection bonding prestress anti-pulling and anti-floating pile comprises steel reinforcement cages arranged in a subsection mode, and all the sections of steel reinforcement cages are axially connected through connecting pieces. According to the novel segmented bonding prestressed anti-pulling and anti-floating pile and the construction method thereof, the stress character of concrete is changed, so that the concrete is pressed in the tension process, the stress of the concrete is more reasonable, and the anti-pulling and anti-floating pile design can be carried out according to first-level crack resistance; lots of rebars are saved; after long spiral pore-forming pressure-grouting concrete, a reinforcing steel bar-steel strand cage is inserted, rapid construction is achieved, the efficiency is high, and the construction speed is 5-10 times higher than that of a traditional reverse circulation drilling machine; the method has the advantages of no need of slurry protection wall, no slurry pollution, dry operation, facilitation of safe and civilized construction, especially in-city construction, strict requirements on slurry pollution, and more obvious advantages.

The application discloses a kind of low-code application quick construction method, including the following steps: data preparation, application construction, application release, construction is completed, finally generates application module;First, data preparation is carried out, obtains the construction resource data required for application construction, is compressed and uploaded to construction module, then construction module decompresses data and passes through visual construction page, business logic and data structure, to design page design application function in the way of drag and drop.By this method, non-professional personnel can also directly build the application module that oneself needs, improve the application building speed and user-friendly.

The invention discloses a pre-stress system capable of being quickly constructed, which comprises a working anchor plate and a pre-stress rib, and further comprises a working outer clamping piece and a working inner clamping piece, the working inner clamping piece is inserted into the center of the working outer clamping piece, so that an inner arc-shaped groove and an outer arc-shaped groove are combined to form a plurality of clamping holes; a plurality of clamping holes are formed in the working anchor plate, steel strands corresponding to the prestressed tendons penetrate through the clamping holes in a one-to-one correspondence mode, a conical hole is formed in the center of the working anchor plate, the working outer clamping piece is of a two-half structure, the outer circle of the working outer clamping piece is of a cone structure, and the working outer clamping piece is inserted into the conical hole to form a wedge-shaped steel strand clamping structure. According to the prestress system, all the steel strands are clamped at the same time by designing the integral clamping pieces, and the installation efficiency is improved. The invention further discloses a construction method of the prestress system, according to the construction method, in-place traction, namely tensioning can be achieved, a large number of procedures are saved compared with the prior art, and the time requirement of shield segment prestress construction is met.

The application relates to a solid waste high-value nuclear engineering concrete material knowledge base establishment method and system, solves the problem that a research and development process is highly dependent on experience-based fixed mixing amount trial and error, which leads to a long research and development cycle and difficulty in adapting to SMR rapid construction requirements, and the method comprises the following steps: a nuclear engineering concrete material database is constructed by integrating double-source data and standardizing processing; a performance mapping model is established by adopting machine learning to analyze component-process-performance structure-effect relationships; a plurality of optimization schemes are generated by inversely deducing according to target performance, and the optimal solution is output after verification and scoring, and finally a multi-layer knowledge base containing data, models and schemes is constructed. The application has the following effects: a leap from experience-based trial and error to data-driven intelligent generation of a nuclear engineering concrete material formula is realized, and precise and efficient optimal design is realized.

The invention relates to an aircraft engine tail TPMS (Tire Pressure Monitor System) structure design method based on machine learning, belongs to the field of aircraft engine thermal protection, and realizes rapid construction of a mapping relation between structure parameters and performance parameters and integration of structure design and manufacturing by utilizing machine learning and a genetic algorithm. The method mainly comprises the following steps: S1, carrying out structure parametric modeling and heat-fluid-solid multi-field coupling finite element automatic analysis on the TPMS porous sandwich thermal protection structure; s2, obtaining a mapping relation between structure parameters and simulation performance parameters of the TPMS porous sandwich thermal protection structure by establishing and training a machine learning model; s3, adopting a genetic algorithm and the trained machine learning model to perform reverse optimization design of the TPMS porous sandwich thermal protection structure; the multifunctional integrated thermal protection structure which is light in weight, high in heat insulation and high in bearing capacity can meet the optimized design requirement, and the thermal protection performance of the tail of an existing aircraft engine is improved.

The invention provides a factory-like rapid construction method for an underground long rigid pipeline, a plurality of underground factory units are planned and excavated along a pipeline line at intervals, each underground factory unit comprises an assembling unit and a traction unit, and the adjacent underground factory units are connected through a foundation pit; a travelling crane is arranged in the assembly unit, a traction system is arranged in the traction unit, an assembly jig frame is arranged in the foundation pit, and an underground factory greenhouse is installed above each underground factory unit and the foundation pit; the pipeline transport vehicle transports the pipeline sections into the assembling units, the travelling crane hoists the pipeline sections to the assembling jig frame, and all the pipeline sections are welded to form a pipeline with the designed length; the welded pipeline is driven by a traction system and assisted by a lifting type sliding support to move to a traction unit along the foundation pit; and then welding with a subsequent pipe section to form a continuous pipeline. The problems that underground long rigid pipelines are low in construction efficiency, installation precision and construction quality are solved.

The invention provides an epoxy modified cement-based material, the epoxy modified cement-based material comprises an organic phase structure and inorganic crystals, and the inorganic crystals are radially distributed on the surface of the organic phase structure; the organic phase structure is a spherical or sphere-like structure with the diameter of 3-15 microns; the inorganic crystal is of a needle-shaped, rod-shaped or sheet-shaped structure with the length being 0.3-3 microns and the diameter being 0.05-0.5 microns. The epoxy modified cement-based material disclosed by the invention shows good adhesion and dispersion resistance under water or in a humid environment, can realize rapid underwater construction, and keeps stable performance for a long time under harsh conditions such as a marine environment and a humid environment; the engineering requirements of multiple fields such as building structure repairing, underwater repairing, rapid first-aid repair, ocean protection and road and bridge engineering are met, and the integration of high strength, high toughness, strong interface bonding and long-acting durability is realized.

The invention discloses a blade profile thickness distribution construction method and device, a blade and an aero-engine, and blade profile thickness distribution comprises a front edge section with a thickness distribution curve in an elliptic arc shape, a second section with a thickness distribution curve in a concave arc shape, a third section with a thickness distribution curve in a convex arc shape and a tail edge section with a thickness distribution curve in an arc shape. The design parameters comprise the length-width ratio e of the leading edge, the wedge angle of the leading edge, the thickness of the leading edge, the maximum thickness, the position of the maximum thickness and the thickness of the trailing edge, the leading edge section is tangent to the second section at the position of the thickness of the leading edge, the second section is tangent to the third section, and the third section is tangent to the trailing edge section. According to the method, a section of negative-curvature thickness distribution rule is constructed by utilizing the geometrical characteristics of a concave arc, the speed reduction of airflow at the front half section of the blade is realized, the wavefront Mach number is controlled, and the rapid construction of the thickness of the rotor blade with the controllable blade thickness increasing rate is completed on the basis of ensuring the wedge angle; and the optimal aerodynamic performance is realized under the condition of enough structural strength stability.

The invention relates to a repairable super-hydrophobic coating with high mechanical stability and a preparation method and application thereof, and belongs to the technical field of coating materials. In order to solve the problems that a super-hydrophobic coating is poor in mechanical stability and lack of self-repairing capacity, the invention provides a repairable super-hydrophobic coating with high mechanical stability, and the repairable super-hydrophobic coating with high mechanical stability mainly comprises epoxy resin, tetrapod-like zinc oxide, nano aluminum oxide, nano silicon dioxide, micron-sized carbon nanotubes and micron-sized aramid fibers. The three-dimensional surface micro-nano structure with longitudinal gradient distribution is constructed by simulating the micro-nano structure of the leg of the water strider, and the repairable performance can be achieved by exposing the similar micro-nano structure on the bottom layer through abrasive paper polishing. A firm and stable network micro-nano structure is formed in the coating, and the coating has excellent mechanical stability and corrosion resistance. The coating spraying method disclosed by the invention supports large-area rapid construction, is compatible with various base material types, and has a wide application prospect in the fields of self-cleaning, icing resistance and the like.

The application discloses a kind of auxiliary construction equipment for quick construction of deep water immersed concrete deck, including horizontal plate, horizontal plate rotation connection support column, support column lower end hinged connection curved bar, support column outside hinged connection thrust device, thrust device and curved bar hinged connection, the curved bar includes first branch and second branch, first branch and second branch hinged connection and set first torsional spring, first branch and support column lower end hinged connection and set second torsional spring, thrust device and second branch hinged connection.The auxiliary construction equipment is hoisted horizontal plate in the central position of pile column, and driving motor drives support column to rotate to corresponding construction position, and press bending is carried out on the reserved steel bar extended one by one.By controlling the extension of thrust device, the cylindrical side push vertical rod translates, the rolling column rises on the arc block, and the relative bending of the first branch and the second branch is matched, the lifting and press bending of the middle part of the reserved steel bar are realized, the bending operation of the reserved steel bar is facilitated, and the work efficiency is improved.

The application relates to a method for rapidly building a dock, which comprises the following steps: S01, preparation before building; S02, loading a first aft half ship and a second aft half ship in the dock to complete half ship loading; S03, opening the dock gate to let water in; S04, taking the second aft half ship out of the dock and parking the second aft half ship at a wharf; S05, closing the dock gate, pumping water and washing mud, and performing whole ship building on the first aft half ship; S06, improving the half ship integrity state during the period when the second aft half ship is parked at the wharf; S07, parking the first ship at the wharf after the first ship is taken out of the dock, and performing whole ship building on the second aft half ship; and S08, realizing whole ship building and taking the second ship out of the dock in a dock period. The application has the effects of fully utilizing dock resources, compressing the dock period and realizing the control of shipbuilding cost.