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219 results about "Surface construction" patented technology

Intelligent construction method, system and equipment based on digital twin tunnel and medium

The invention discloses an intelligent construction method, system, equipment and medium based on a digital twin tunnel, and aims to construct a high-precision physical entity model by fusing dynamic and static data in real time through multiple types of sensors so as to improve data acquisition comprehensiveness; based on tunnel-level, soil-level and ground building-level multi-level modeling and finite element analysis, fine mechanical stability simulation is realized; multi-dimensional data features are extracted by combining a convolutional neural network algorithm, security risks are evaluated, and a reinforcement scheme is optimized through dynamic iteration; a closed-loop regulation and control mechanism of data monitoring, numerical simulation and dynamic feedback is formed by utilizing a collaborative architecture of a sensing layer, a simulation layer and a display layer, so that environmental disturbance is effectively reduced, and construction safety is guaranteed; according to the method, digital twinning, BIM, finite element analysis and deep learning are fused, real-time monitoring and intelligent optimization of the whole construction process are achieved, efficiency and safety are remarkably improved, and influences on the surrounding environment are reduced.
Owner:POWERCHINA CONSTR GRP

Cofferdam positioning method for bridge construction based on Beidou positioning

The invention relates to the technical field of high-precision positioning in water surface construction, and discloses a Beidou positioning-based cofferdam positioning method for bridge construction, which comprises the following steps: S1, initializing Beidou RTK, setting a base station, acquiring an initial position of a cofferdam, and realizing centimeter-level positioning by using differential correction; s2, fluid-solid coupling modeling is carried out, a dynamic model of the cofferdam under the action of water flow, tide and wind power is established based on a computational fluid mechanics method, and stress and deformation of the cofferdam are calculated in combination with finite element analysis; and S3, estimating an unscented Kalman filtering state, and calculating the current position, speed and error range of the cofferdam based on the historical position information of the cofferdam and fluid-solid coupling modeling prediction data. According to the method, the timeliness of error correction is ensured through an error loop feedback mechanism and a real-time alarm function, the robustness and stability of the system are improved, and the positioning precision and reliability of the cofferdam in the construction process are remarkably improved.
Owner:GUANGXI ZHUANG AUTONOMOUS REGION CONSTR ENG QUALITY INSPECTION CENT CO LTD

Airport clearance obstacle assessment reference height three-dimensional surface construction assessment method and system

The invention discloses an airport clearance obstacle assessment reference height three-dimensional surface construction assessment method and system, and the method comprises the steps: S1, constructing a plane-coordinate system on a three-dimensional geographic information system GIS, obtaining runway data of a research airport, and projecting the runway data to the plane-coordinate system through an NTS class library, projecting the clearance confinement zone parameter table to a plane coordinate system by adopting an NTS class library; s2, on the basis of a clearance graph element space operation model, successively dividing each restricted area from the runway center to the outside in a plane-coordinate system; and S3, setting a height limitation parameter corresponding to each limitation area, and constructing a corresponding obstacle evaluation reference height three-dimensional surface on a three-dimensional geographic information system GIS according to the height limitation parameter of each limitation area by using the Cesium library model. According to the invention, the clearance graph element space operation model correspondingly constructs each restricted area based on the clearance restricted area parameter table and constructs the obstacle assessment reference height three-dimensional surface by using the Cesium library model, so that the target obstacle assessment can be quickly and accurately realized.
Owner:ZHONGYU (BEIJING) NEW TECH DEV CO LTD

Architectural design modeling method and system based on parameter entity and Boolean relationship thereof

The invention discloses a building design modeling method and system based on a parameter entity and a Boolean relationship thereof, and the method comprises the steps: converting a plurality of building components into geometric body data based on a structure shape, and abstracting a single geometric body into a whole model according to the Boolean relationship between the building components required by the design; the method specifically comprises the steps that firstly, building design related component data given by a user is preprocessed, a two-stage structure is adopted to redefine a geometry, the geometry is stored, and the Boolean relation between components is represented through a tree structure; the preprocessed data are transmitted into a grid generation solver, and a final three-dimensional model and affiliated topological information are obtained through background grid and contour surface construction, topological information integration and grid post-processing. The method can ensure that the building design modeling process has good robustness and calculation efficiency.
Owner:ZHEJIANG UNIV

Method for dividing metropolitan corridor spatial form management and control subareas

The invention discloses a metropolitan corridor spatial form management and control partition delimiting method. The method comprises the following steps: S1, data acquisition and processing: acquiring and processing urban geographic information corresponding to each landscape unit in a selected area; s2, constructing a resistance surface: constructing the resistance surface, and updating the resistance surface in real time according to the change of the ecological environment and the land utilization type by adopting a dynamic resistance coefficient assignment method; s3, metropolitan corridor path determination: determining an urban ecological corridor path between any two ecological source lands based on a minimum cumulative resistance model; s4, centrality calculation and importance grading: performing centrality calculation on the urban ecological corridors based on a circuit theory, determining a centrality value of each ecological corridor, and performing importance grading on the urban ecological corridors according to the centrality values; and S5, constructing a suitability index system and determining a spatial range: determining a suitable construction spatial range and a priority level of the urban ecological corridor, and establishing the suitability index system based on machine learning.
Owner:BEIJING UNIV OF CIVIL ENG & ARCHITECTURE

Quantitative characterization method and system for oil and gas transport efficiency of sandstone lateral migration channel

The invention provides a quantitative characterization method and a quantitative characterization system for oil and gas transport efficiency of a sandstone lateral migration channel, and the method comprises the steps: obtaining a contour line included angle and a target stratum inclination angle of each well position at two sides of a construction ridge or valley according to a target stratum top surface construction contour map, and constructing a construction ridge or valley transport index according to the contour line included angle; buoyancy borne by the target stratum of each well position is obtained according to the target stratum dip angle; obtaining the residual pressure difference gradient of each well position according to the target layer pressure plane distribution diagram; superposing the contour map of the top surface structure of the target stratum and the pressure plane distribution map to obtain an included angle between an inclined reverse extension line and a residual pressure difference gradient direction in the target stratum of each well position; obtaining the weighted average permeability and the porosity of the target layer of each well location, the ridge or valley construction conduction index of each well location, the buoyancy borne by the target layer, the residual pressure difference gradient and the included angle to construct comprehensive evaluation indexes of each well location; and quantitatively characterizing the oil and gas transport efficiency of the sandstone lateral migration channel by using the comprehensive evaluation indexes of each well location. According to the invention, the lateral conduction channel conduction efficiency can be evaluated visually, simply and conveniently.
Owner:PETROCHINA CO LTD

Combined path swept surface construction method based on isoparametric line extraction

The invention discloses a combined path swept surface construction method based on isoparametric line extraction. The method comprises the following steps: a geometric model comprises n swept contours and n swept paths; the scanning contours are in one-to-one correspondence with the scanning paths; initializing a path index k representing a sweeping path sequence number; s2, acquiring a sweeping path according to the path index k, and acquiring and updating a sweeping contour according to the sweeping path; obtaining a corresponding single-section scanning curved surface according to the scanning contour; s3, intercepting an isoparametric line of which the parameter value is 1 in the scanning contour direction of the single-section scanning curved surface; the isoparametric line represents the geometric contour of the tail end of the single-section swept curved surface and has the same geometric continuity and space continuation with the swept contour; the isoparametric line is used as a scanning contour corresponding to the scanning path under the next path index k; updating the path index k; backtracking to the step S2 until the path index k is equal to n; and S4, sewing all the generated single-section scanning curved surfaces by adopting a Brep structure, and constructing and outputting an overall three-dimensional scanning model.
Owner:HANGZHOU DIANZI UNIV

Lunar surface environment simulation device for simulating lunar surface construction test

The invention discloses a lunar surface environment simulation device for simulating a lunar surface construction test. The lunar surface environment simulation device comprises a frame; the lunar surface terrain simulation module is used for simulating the lunar surface terrain; the universe background simulation module is used for simulating the universe background; the light simulation module is used for simulating the illumination condition of the lunar surface; the temperature simulation module is used for simulating the temperature change of the lunar surface; the humidity simulation module is used for simulating the humidity of the lunar surface; the vacuum simulation module is used for simulating the vacuum environment of the lunar surface; and the construction simulation module is suitable for simulating the lunar surface construction process on the lunar surface terrain simulation module. The lunar surface environment simulation device for simulating the lunar surface construction test has the advantages that the lunar surface environment simulation device is close to the actual lunar surface environment, and the construction process can be conveniently verified.
Owner:TSINGHUA UNIVERSITY

Curved surface segmentation assembly line

The invention belongs to the technical field of assembly lines, and particularly discloses a curved surface segmentation assembly line which comprises a segmentation workshop span A, a segmentation workshop span B, a curve segmentation line A, a curve segmentation line B and a jig frame transverse moving device. The segmentation workshop span A and the segmentation workshop span B are symmetrically arranged, the curve segmentation line A is arranged in the segmentation workshop span A, and the jig frame transverse moving device is arranged in the curve segmentation line B; the curve subsection B line is arranged in the subsection workshop B span, and the jig frame transverse moving device is arranged between the curve subsection A line and the curve subsection B line; the movable curved surface jig frame is adopted, so that the movable curved surface jig frame can be suitable for the curved surface section with a straight plate as the curved surface section to build a base plane, and can also be easily applied to the curved surface section with a curved surface outer plate as the building base plane. The movable curved surface jig frame can be recycled in the workshop through the circulation of the movable curved surface jig frame and the transverse movement of the jig frame transverse movement device in the two spans of the workshop.
Owner:ZHONGCHUAN NO 9 DESIGN & RES INST

Reservoir damming blocking branch information extraction method and device based on digital elevation model

The invention discloses a reservoir damming branch blocking information extraction method and device based on a digital elevation model, and the method comprises the steps: obtaining a reservoir digital elevation model and key parameters, and extracting a corresponding water level isoline data set, a range boundary and slope data; after contour line data sets are classified, different types of pattern spot data sets are formed through surface construction and space relation operation; performing spatial inclusion relation query and judgment processing on the pattern spot data set to form a damming water area pattern spot object set; the object set is traversed, the nearest point and the minimum distance between the object set and the main flood prevention limited water level pattern spots or the object set are calculated, a damming and blocking branch object is formed, and the dam crest plane area, the average elevation, the loss reservoir capacity of the damming and blocking branch and the influence reservoir capacity are calculated. According to the method, the technical problems of limited precision, incomplete information extraction and the like due to the fact that the current damming and blocking branch information depends on manual identification are solved, and a basis is provided for reservoir flood control capacity analysis and damming and blocking branch rectification decision making.
Owner:ZHEJIANG INST OF HYDRAULICS & ESTUARY

Method for compensating influence of net rack deformation on inner molded surface precision

The invention provides a method for compensating influence of net rack deformation on inner profile precision, and belongs to the technical field of wind tunnel body inner profile construction. A minimum dominating set algorithm is adopted to optimize sensor layout to construct a three-dimensional deformation monitoring network, and a pre-arching compensation optimization function is used to calculate a preset elevation compensation value; in the net rack splicing process, splicing errors are corrected in real time through a structural deformation self-adaptive compensation model, displacement synchronization in the lifting process is ensured through a synchronous hydraulic lifting system and a lifting deformation control algorithm, and after a net rack is in place, the actual geometrical shape of an inner molded surface is obtained through a three-dimensional laser scanning technology. According to the deviation value, comprehensive compensation measures of supporting jig frame elevation adjustment, temporary supporting structure arrangement, follow-up construction load distribution control and net rack node position fine adjustment are adopted for deformation compensation, and the technical problem that due to net rack deformation, the geometric accuracy of the inner profile of the lower hanging cast-in-place slab is difficult to control is solved.
Owner:CHINA CONSTR EIGHT ENG DIV CORP LTD

Assembly joint surface construction method considering wavelet and fractal

The invention relates to the technical field of machining part non-ideal surface generation, and particularly discloses a wavelet and fractal-considered assembly junction surface construction method which comprises the following steps: S1, according to an ideal mathematical model of an assembly junction surface, S2, comparing calculation methods of different fractal parameters, S3, aiming at the part assembly junction surface in different machining modes, calculating fractal fractal parameters according to a calculation method of the different fractal parameters; s4, the assembly junction surface is regarded as a structure formed by superposition of contours of different scales, S5, a power spectrum analysis method is introduced to analyze the surface contour curve characteristics of the assembly junction surface, and S6, according to the isotropic or anisotropic properties of the surface of the assembly junction surface in different machining modes, the surface contour curve characteristics of the assembly junction surface are analyzed. The statistical distribution characteristic parameters determined in the step S3 are introduced into characterization of the assembly joint surface; and S7, the contour curve characteristic parameters extracted in the step S4 are associated with the fractal parameters determined in the step S2. According to the method, multi-scale decomposition is carried out on the assembly joint surface through wavelet transform, and the specificity information of the roughness contour, the waviness contour and the shape error contour can be effectively extracted.
Owner:AVIC SAC COMML AIRCRAFT

A solid-liquid coupling simulation method with surface tension effect based on the material point method

The present invention discloses a solid-liquid coupling simulation method with surface tension effect based on the material point method, belonging to the fields of computer graphics and physics-based simulation. The system used in the simulation method includes solid model modeling, fluid model modeling, Level Set implicit surface construction, Marching Cubes display surface construction, surface particle resampling, and collision detection. The system simulates fluids and solids on the basis of the material point method, constructs Level Set to resample fluid surface particles, and adds surface tension to the fluid using the CSF model. Different background grids are used to simulate fluids and solids respectively to solve the inherent adhesion phenomenon during MPM solid-liquid coupling and achieve the slip contact effect during solid-liquid coupling. Finally, the coupling phenomenon of incompressible fluid with surface tension effect and nonlinear elastic solid is realized.
Owner:YANSHAN UNIV

Construction method of composite sandwich heat preservation building block constructional column

The invention discloses a construction method of a composite sandwich thermal insulation building block constructional column, which is characterized by comprising the following steps of: S1, checking and accepting embedded steel bars of the constructional column, and pre-discharging a story number line of brick building blocks according to an elevation control line and the elevations of a windowsill and a window top; s2, typesetting and designing according to the size of the heat bridge part, and popping up a floor axis, a wall body side line and a constructional column side line; s3, the composite sandwich heat preservation building blocks are built to form a wall body; a horse tooth rubbing position at the joint of the constructional column is reserved; s4, supporting a film on the constructional column and pouring; s5, removing the mold and cleaning the site; the characteristic of a three-layer structure of the composite sandwich thermal insulation building block is reasonably utilized, a standard stubble groove body formed by an inner blade and the complete building blocks on the two sides is removed at the constructional column, a standard constructional column is formed through pouring, and the connectivity between the constructional column and walls on the two sides is effectively enhanced; the building block outer side heat preservation layer without the inner blades and the outer blades can also be used as templates to reduce material loss, and the outer surface of the constructional column formed in the mode is flush with a normal building block, so that the continuity of a surface construction layer is not affected.
Owner:CHINA METALLURGICAL CONSTR ENG GRP

Wall surface construction structure with arc-shaped folded edge

The utility model discloses a wall surface construction structure with an arc-shaped folding edge, which belongs to the technical field of wall surface decoration construction and comprises a decoration plate and a folding edge connecting piece, the folding edge connecting piece comprises a central connecting body and a connecting plate, the central connecting body is arranged at an external corner position of a wall body, and the connecting plate is fixedly connected with the central connecting body. The utility model discloses a wall external corner connecting piece, which comprises a plurality of central connecting bodies, two connecting plates are fixedly connected to each central connecting body, the two connecting plates are respectively attached to two wall surfaces at the position of a wall external corner, and a decorative plate is fixed with the connecting plates through fasteners, the wall external corner connecting piece has the beneficial effects that the wall external corner connecting piece is provided with two folding edge connecting pieces with different structures, and is respectively used for the situation that the wall external corner is a right angle or an arc, so that the wall external corner connecting piece is convenient to use. And in addition, for an arc-shaped external corner on a construction site, the edge folding connecting piece can be bent into the required radian on site, so that the decoration plate is more convenient to install, and after the decoration plate is installed, the edge folding connecting piece can be wrapped in the decoration plate through soft wrapping leather, so that the attractiveness is improved.
Owner:SHANXI BUILDING DECORATION ENG CO LTD

Profiling supporting hanging basket for arc-shaped outer wall surface construction

The utility model discloses a profiling supporting hanging basket, particularly discloses a profiling supporting hanging basket for arc-shaped outer wall surface construction, and belongs to the technical field of design and manufacturing of building engineering construction process devices. According to the profiling supporting hanging basket for arc-shaped outer wall surface construction, the construction safety is remarkably improved, and the functions are relatively complete. The profiling supporting hanging basket comprises a profiling hanging basket body, the profiling supporting hanging basket further comprises a limiting, guiding and stabilizing mechanism and a material grabbing and lifting mechanism, the limiting, guiding and stabilizing mechanism is arranged on the portion, on one side of the inner arc-shaped structure, of the profiling hanging basket body, and the material grabbing and lifting mechanism is arranged on the portion, on one side of the outer arc-shaped structure, of the profiling hanging basket body; in the construction process of the arc-shaped outer wall surface attachment, the profiling hanging basket body is limited and kept stable through the limiting, guiding and stabilizing mechanism, and materials in the construction process are conveyed to the profiling hanging basket body from the ground through the material grabbing and lifting mechanism.
Owner:CHINA 19TH METALLURGICAL CORP

A side milling cutter planning method for weight adjustment of non-developable ruled surfaces

The present invention discloses a side milling cutter position planning method for weight adjustment of non-developable ruled surfaces. The method first completes the non-developable ruled surface construction based on the original control points; secondly, the original two-point offset algorithm is used to obtain the initial tool axis vector with equal parameters, and the maximum overcut position of the corresponding side milling area is solved; then the maximum overcut offset position and the initial tool vector are used to form two segmented vectors, and the weight factor is calculated; finally, the side milling cutter axis vector after weight adjustment is obtained. In addition, the method calculates different weight factors for different distortion positions, which can be better adapted to the side milling of non-developable ruled surfaces. The present invention focuses on the side milling processing errors of non-developable ruled surfaces, especially the overcut and individual positioning tool errors, and completes the purpose of outputting the tool axis vector by the weight optimization algorithm with the initial tool axis vector as the starting point, thereby improving the side milling processing accuracy and efficiency, and providing certain technical support for the field of modern mechanical manufacturing and processing.
Owner:XI AN JIAOTONG UNIV

Simulation and optimization method of recycled aggregate crushing based on DEM particle crushing algorithm

The application discloses a recycled aggregate crushing simulation and optimization method based on a DEM particle crushing algorithm, which is based on the Griffith strength theory and the discrete element method, realizes efficient and accurate simulation of particle crushing behavior through single-particle three-dimensional stress calculation, crushing criterion establishment, fracture surface construction based on a contact point origin and sub-particle attribute inheritance, and forms a method from parameter calibration to dosage quantification; the application quantifies the maximum dosage of recycled aggregate under different highway grades and base types by revealing the mesoscopic mechanism that recycled mortar is similar to natural crushed stone in mechanical properties and recycled bricks have a decisive control on the crushing value of the mixture, and provides a theoretical reference and practical guidance for the resource high-value utilization of building solid waste recycled aggregate in road bases.
Owner:GUIZHOU UNIV

A method for surface antibacterial functionalization of a medical titanium alloy material

PendingCN122344722AGood tissue penetrationEffective sterilizationHeterojunctionLight irradiation
The application discloses a kind of medical titanium alloy material surface antibacterial functionalization processing methods, first by hydrothermal oxidation and high-temperature sintering processing in titanium alloy material surface construction TiO2 Nanometer sheet, then deposit W 18 O 49 Quantum dots are deposited on the TiO2 Nanometer sheet, and TiO2 / W 18 O 49 Heterojunction is constructed on the surface of titanium alloy.TiO2 / W 18 O 49 Heterojunction can efficiently catalyze the production of reactive oxygen species (ROS) under near-infrared light irradiation, achieving antibacterial function. The TiO2 / W 18 O 49 Heterojunction functionalized titanium alloy material surface, the irregular sheet structure of TiO2 Nanometer sheet can greatly increase the contact area of the material surface and the surrounding solution, and the W 18 O 49 Quantum dots have the characteristics of "single-atom-like catalysis", which can improve the ROS yield and further endow the medical titanium alloy surface with strong photodynamic antibacterial performance.
Owner:HUAIYIN INSTITUTE OF TECHNOLOGY

Composite waterproof wall surface construction method, structure and construction device

The invention discloses a composite waterproof wall surface construction method, structure and construction device, and relates to the technical field of constructional engineering waterproofing, and the method comprises the steps that a crack distribution thermodynamic diagram of a wall surface base layer is obtained; based on the crack distribution thermodynamic diagram, nanometer modified polymer cement mortar is laid to construct a base layer reinforcing layer; paving an intelligent polymer self-adhesive film coiled material on the base layer enhancement layer to construct a waterproof main layer; the waterproof main layer is coated with sealant to form a sealing reinforcing layer; and a photocatalytic coating is sprayed on the sealing reinforcing layer to form a protective surface layer. The multi-layer composite waterproof structure is constructed, the waterproof performance, durability and environmental protection performance are considered, the compressive strength is improved through the nano-modified mortar, the temperature-sensitive self-adhesion coiled material adapts to the more severe temperature, automatic construction equipment is adopted, manual errors are reduced, and materials and the technology are optimized so as to cover more scene requirements.
Owner:海腾创建(深圳)集团有限公司

Fabricated wave anode aluminum plate wall surface design structure capable of avoiding echoes

The utility model discloses an assembly type wave anode aluminum plate wall surface design structure capable of avoiding echoes, which comprises a base layer framework, long supporting square pipes and short supporting square pipes, a flange is arranged on the opposite side of the inner anodized aluminum plate, an aluminum plate connecting piece is arranged in the middle of the flange, a folded edge is arranged on one side of the aluminum plate connecting piece, and the side end face of the inner anodized aluminum plate abuts against the long supporting square pipe; the square tube is fixedly installed at the end of the long supporting square tube, the square tube is perpendicular to the ground, and aluminum plate fixing and supporting pieces are symmetrically arranged on the two sides of the square tube; the end part of the outer anodic aluminum oxide plate is fixedly arranged on the aluminum plate fixing and supporting piece; the partition keel is fixedly mounted on the back of the base framework, and a gypsum board layer is arranged on the surface of the partition keel. Compared with the prior art, the utility model solves the problems that the modeling is not easy to control, the installation efficiency is low and echoes exist in the construction process of the conventional wave-shaped anode aluminum plate wall surface.
Owner:GOLD MANTIS CONSTR DECORATION

An anti-cavitation surface structure and a method of making the same

The application discloses a novel anti-cavitation surface structure and a preparation method thereof. The anti-cavitation surface structure can change the wetting degree of a material surface, reduce gas nuclei near a liquid-solid contact surface, inhibit cavitation and cavitation erosion processes, and also reduce the damage of micro-jets to the material in the cavitation erosion process. The anti-cavitation surface structure layer is composed of a surface construction layer and a substrate. The working mechanism is as follows: firstly, the construction can change the wetting degree of the material surface, so that the gas nuclei near the liquid-solid contact surface are reduced, thereby slowing down the cavitation and cavitation erosion processes; secondly, the incident kinetic energy of the micro-jets in the effective construction area is consumed in the form of friction, thereby reducing the damage of the micro-jets to the material substrate. The application can effectively slow down the cavitation erosion process, weaken the influence of the micro-jets on the material substrate in the cavitation erosion process, and effectively resist the damage of the cavitation erosion to the material surface.
Owner:HOHAI UNIV

Ecological security pattern construction system based on minimum cumulative resistance model

The present application relates to the field of data processing technology, and relates to an ecological safety pattern construction system based on a minimum cumulative resistance model, which comprises an ecological data preprocessing and source extraction module, a resistance factor extraction module, a dynamic resistance surface construction module, a cumulative resistance evaluation module, a key ecological element identification module and a safety pattern generation module, and is characterized in that: the ecological source data in a target region is subjected to feature density statistics to obtain an ecological source distribution map; the ecological source distribution map is subjected to inhibition influence analysis to obtain resistance factors; the resistance factors are subjected to spatial data superposition to obtain a dynamic resistance surface; the ecological source distribution map is subjected to spatial diffusion resistance cumulative evaluation to obtain a cumulative resistance surface; the cumulative resistance surface is subjected to key ecological element analysis to obtain ecological corridors and ecological nodes; and the ecological safety pattern of the target region is constructed according to the ecological corridors and the ecological nodes; and the present application can improve the efficiency of the ecological safety pattern construction based on the minimum cumulative resistance model.
Owner:INNER MONGOLIA UNIV OF SCI & TECH

Scaffold for house construction

The utility model relates to wall surface construction tool technical field, and more specifically, relate to a kind of scaffold for house construction, comprising: underframe, it is equipped with at least X mounting surface, and at least Y mounting surface is equipped with sliding slot, X is integer greater than or equal to 4, Y is integer greater than or equal to 3, and X-Y is greater than or equal to 1;Several support leg assemblies, the number is equal to the number of sliding slot, respectively slidably set at each sliding slot, the support leg assembly is used to improve the support stability of the underframe;Multiple side frames, the number is equal to the number of mounting surface of the underframe, respectively detachably set on each mounting surface of the underframe;Connecting frame, set on the upper side of each side frame;Safety frame, set on the upper side of the connecting frame.The scaffold for house construction of the utility model aims at solving the problem that the scaffold cannot keep stability in prior art under the premise of close to wall surface.
Owner:HANGZHOU LEYI CONSTR CO LTD

A three-dimensional building planar surface construction method and device and a storage medium

The application discloses a three-dimensional building table construction method and device and a storage medium, and the method comprises the following steps: acquiring real estate ownership data and a corresponding two-dimensional building table, and constructing a three-dimensional building table according to the real estate ownership data; acquiring oblique photography images of a building corresponding to the three-dimensional building table, and correcting the height of the building in the three-dimensional building table according to the elevation information of the oblique photography images; taking the coding ID of a housing property object in the building table as an association key value, associating the two-dimensional building table with the three-dimensional building table, so that the two-dimensional building table and the three-dimensional building table are dynamically interacted; according to the attribute information of the housing property object in the building table, different colors are used for rendering and display in the two-dimensional building table and the three-dimensional building table, and a three-dimensional building table linked with the two-dimensional building table is output. The application realizes the space linkage of the building model and the real world, and the dynamic interaction linkage of the two-dimensional building table and the three-dimensional building table.
Owner:GUANGZHOU URBAN PLANNING & DESIGN SURVEY RES INST

A method for three-dimensional pose and visual measurement of building components based on planar markings

This invention relates to a method for three-dimensional pose and visual measurement of building components based on planar markers, including a floor, building components, several planar markers, and a binocular camera system; the patterns of the planar markers include calibration plate patterns and numbering patterns, enabling automatic data classification after the planar markers are captured; the process for capturing planar markers is defined; a theoretical world coordinate system is established based on coordinate system transformation, avoiding the problems of overall coordinate system translation deviation, three-axis rotation deviation, and error accumulation caused by traditional methods; the coordinate system transformation unifies all camera coordinate systems to the theoretical world coordinate system, enabling coordinate stitching of large-sized components by small-format cameras.
Owner:SOUTHEAST UNIV

Prefabricated building wall structure and construction method

The application relates to a fabricated building wall surface structure and a construction method, and belongs to the technical field of wall surface construction. The structure comprises a plurality of wall surface units fixedly installed on a prefabricated wall body, a plurality of fixing members and a plurality of embedded members installed in the prefabricated wall body. The number of the embedded members corresponds to the number of the fixing members. Each wall surface unit comprises an installation plate and a wall plate. One side of the installation plate is connected with the prefabricated wall body. Side limiting edges are arranged at the edges of the side of the installation plate away from the prefabricated wall body. The wall plate is installed in the installation plate. The side limiting edges abut against the side edges of the wall plate. The fixing member comprises a connecting part and a pressing part which are fixedly connected. The connecting part is connected with the embedded member in a threaded cooperation mode. The pressing part is used for pressing the wall plate on the installation plate. The application has the effect of improving the safety of the peripheral environment when the wall plate is replaced.
Owner:SHANGHAI LANTIAN BUILDING DECORATION ENG CO LTD

A method and system for detecting and alarming abnormality of equipment in a hydraulic engineering

The application relates to a water conservancy engineering equipment abnormality detection and alarm method and system, and relates to the field of equipment measurement. The method comprises the following steps: acquiring water surface equipment geographic position information of a current construction node, video information of a water surface of the water surface equipment and angle data on the water surface equipment; generating a first position distribution diagram of the water surface equipment based on the geographic position information; generating a pitch angle change curve of the water surface equipment based on the angle data; determining a stable value of the water surface equipment based on the video information and the pitch angle change curve; judging whether the water surface equipment is abnormal based on the stable value, the first position distribution diagram and a second position distribution diagram of a preset water surface equipment corresponding to the water surface equipment; the preset water surface equipment is a water surface equipment having an associated cooperation relationship with the water surface equipment; and if there is a target water surface equipment, the target water surface equipment is controlled to send an alarm. The application realizes more timely and accurate abnormality detection, alarm and early warning of water surface construction equipment.
Owner:浩宸建设科技股份有限公司

Earthquake disaster scenario construction method and system based on big data

The application belongs to the technical field of earthquake disaster scenario construction, and discloses a method for constructing an earthquake disaster scenario based on big data, and the specific steps are as follows: step one: multi-source heterogeneous data acquisition and preprocessing ground structure data acquisition: the spatial distribution characteristics of urban building groups are obtained by using multi-platform remote sensing technology. By integrating multi-source data, a three-dimensional coupling model of underground pipe network and ground building is constructed, the defects of isolated analysis of ground and underground systems in traditional methods are solved, the synchronous simulation of the dynamic correlation process of pipe network rupture and building damage is realized, the additional influence of pipe network failure on building foundation stability and the chain effect of soil erosion caused by leakage fluid are accurately analyzed, and the space-time correlation rules of pipe network rupture events, building fire, fire fighting failure and other types of secondary disasters are established, the building group function paralysis risk and disaster diffusion range under different damage degrees are dynamically predicted, and the disaster evolution path is displayed in real time through a visual platform.
Owner:辽宁省地震局

Wall surface construction supporting device

The utility model provides a wall construction supporting device which comprises a fixing plate, a supporting plate is movably installed at one end of the fixing plate, a fixing groove is formed in the fixing plate, a fixing block is rotatably installed in the fixing groove and installed in the fixing groove through a rotating column, one end of the fixing block is fixed to the supporting plate, and the other end of the fixing block is fixed to the supporting plate. Cavities are formed in the fixing plate and the supporting plate, fixing rods and supporting rods are movably installed in the cavities correspondingly, limiting rods are welded to one ends of the fixing rods and one ends of the supporting rods correspondingly, and ring bases are fixed to one sides of the fixing plate and the supporting plate correspondingly. When the wall surface construction supporting device is used, the fixing plate and the supporting plate are connected and installed in a 90-degree mode, the fixing plate and the supporting plate are matched to support a single-face wall surface, in addition, one side of the fixing plate and one side of the supporting plate rotate at the same time to make contact with the ground, and after the fixing plate and the supporting plate are in a triangle shape and make contact with the ground, double-face supporting is conducted on the right-angle wall surface.
Owner:HUBEI HONGJIAN SHANGCHENG CONSTRUCTION ENGINEERING CO LTD