2263 results about "Prefabrication" patented technology

Disclosed in the present invention is a construction process of an offshore bridge high-rise pile platform. A cofferdam of a steel-concrete structure is used for construction. The cofferdam consists of a cofferdam bottom plate prefabricated by means of reinforced concrete and a steel side formwork. The construction process comprises the following stages: a preparation stage, a cofferdam mounting stage, a cofferdam lowering stage, a cofferdam bottom plate blocking and water pumping stage, and a platform concrete pouring stage. The preparation stage comprises the following steps: pile foundation casing sinking, cast-in-place pile construction, pile foundation casing pile head trimming, cofferdam bottom plate and skirt plate prefabrication, and steel side formwork manufacturing. The cofferdam mounting stage comprises: first, mounting the cofferdam bottom plate, and then mounting the steel side formwork, wherein the cofferdam bottom plate is mounted by means of suspension hangers, and each suspension hanger comprises a pile cap, an inverted hanging beam, and two first finish-rolled twisted steel bars. The cofferdam lowering stage comprises mounting a jack lowering system on the cofferdam bottom plate, wherein the cofferdam lowering system comprises I-shaped hangers, carrying pole beams, center hole jacks, and steel strands. The construction process of the present invention can greatly reduce the construction difficulty and can improve the construction efficiency.

The invention relates to the technical field of bridge engineering, and discloses a concrete box girder prefabricated segmental girder formwork system and a construction method thereof.The concrete box girder prefabricated segmental girder formwork system comprises a connecting beam frame and fences, the fences are fixedly connected to the upper surface of the connecting beam frame, and an end formwork is detachably installed on the front surface of the connecting beam frame; a side formwork is fixedly connected to the lower portion of the front surface of the connecting beam frame, a side formwork is detachably installed on the upper surface of the side formwork, and an auxiliary formwork is detachably installed on the lower portion of the side formwork. Through the arrangement of the end formworks, the side formworks, the auxiliary formworks, the movable bottom formworks, the walking sliding shoes, the jacks, the reinforcement cages and the side formwork frames, a short line matching method is adopted for prefabrication, a formwork system is matched, reasonable hydraulic jack arrangement is adopted, precise formwork adjustment, supporting and demolding are achieved, the segmental beam prefabrication precision is improved, the bridge splicing quality is guaranteed, the construction process is optimized, and the construction efficiency is improved. All procedures are closely connected, construction time is shortened, and construction efficiency is improved.

The present invention relates to an adaptive manufacturing method for building components, particularly in prefabrication, modular construction, and panelized construction. The invention minimizes cumulative errors in building component production, enhances precision, and facilitates automated assembly using real-time digital updates. The method includes creating a digital information model of a building, containing data on the dimensions and positions of building components; manufacturing at least one building component based on initial model parameters; scanning the manufactured component using laser scanning, structured light scanning, or ultrasound-based scanning, selected based on the material properties, to generate a digital representation of its actual dimensions and shape; updating the digital model with the scanned data to dynamically adjust parameters for subsequent components; recalculating and adjusting the parameters of unmanufactured components based on detected deviations; transmitting adjusted parameters to an automated manufacturing system for real-time modifications in production. The system comprises a processor executing adaptive manufacturing instructions, a scanning module, a processing unit, and a recalculation module that updates component dimensions based on deviations, ensuring seamless integration of prefabricated elements.

The invention discloses a template embedded type dam face permanent heat preservation protection module and a prefabrication and construction method. Comprising a heat preservation core layer, a facing anti-seepage protection layer is arranged on the side, close to a concrete pouring formwork, of the heat preservation core layer, an internal pressure-bearing protection layer is arranged on the side, close to dam surface layer crack limiting steel bars, of the heat preservation core layer, and a thermal broken bridge supporting keel is arranged in the heat preservation core layer; an anchoring device is arranged in the area between the internal pressure-bearing protection layer and the dam surface layer crack limiting steel bars. The modular prefabrication and construction method is adopted, the prefabrication and installation method of a single module is simple and efficient, details such as anchoring protection measures are fully considered, the engineering construction operability is high, convenience and high efficiency are achieved, and the construction time of the heat preservation layer is greatly saved.

The invention relates to the technical field of building construction, in particular to a construction method of a variable-curvature super-depth fusiform skylight in a steel structure, and solves the construction problem of a complex space curved surface through digital design, factory prefabrication, intelligent installation and real-time monitoring and compensation. Through a digital twin-driven construction technology system, the worldwide problems of the variable-curvature ultra-deep steel structure in the aspects of form precision, mechanical stability and construction efficiency are solved, a technical normal form capable of being popularized is provided for the ultra-deep and variable-curvature steel structure, and building form innovation is promoted. And meanwhile, the dependence on manpower is reduced through modular and mechanical operation, the construction period is shortened, the safety is improved, and the cost is reduced by combining prefabricated unit components with dynamic monitoring.

A vehicle window with an integrated sensor module, includes a pane main body having a cutout, a sensor module designed as a prefabricated assembly with a module housing, which forms a hollow space, in which at least one sensor is accommodated, wherein the module housing forming the hollow space is inserted into the cutout and is fastened on the pane main body, wherein, together, an outer surface of the module housing and an outer surface of the pane main body form an outer surface of the vehicle window.

The invention discloses cutting equipment for pipeline prefabrication, belongs to the technical field of machining, and is mainly used for solving the problems of insufficient cutting precision and poor machining stability caused by clamping force fluctuation, pipeline ovality abnormity and dynamic path offset in the pipeline cutting process. According to the equipment, high-precision cutting is achieved through cooperative work of the rack, the clamping mechanism, the cutting executing mechanism, the driving motor and the control module, the clamping mechanism is provided with a pressure sensor to monitor fluctuation of clamping force, and the driving motor is a servo motor with an absolute value encoder to precisely control the rotating angle of a pipeline. The cutting executing mechanism feeds back the displacement track of the cutting machine in real time through a displacement sensor. Synchronous control logic is arranged in the control module, when the fluctuation of the clamping force exceeds the limit, the rotating speed of the servo motor is automatically reduced, the cutting machine is paused, meanwhile, a path correction algorithm is configured, and the proportional relation between the axial moving speed and the radial feeding amount of the cutting machine is calculated in real time based on encoder angle data. And the notch precision and the machining efficiency can be obviously improved.

The invention relates to the technical field of titanium alloy rolling processing, and discloses a method for inhibiting surface cracking in the rolling process of a high-strength titanium alloy thick plate, which comprises the following steps: selecting a titanium alloy plate blank, and preheating the plate blank; the preheated plate blank is subjected to surface multi-pass rolling treatment, and the roll gap set in the later-pass rolling treatment is smaller than that in the previous-pass rolling treatment; remelting and heating the plate blank, wherein the heating temperature is higher than the preheating temperature; the plate blank is discharged out of the furnace and subjected to multi-pass rolling, a rolled plate blank is obtained, and the rolling pass rolling reduction is controlled to range from 5 mm to 25 mm; and the rolled plate blank is straightened on line and then air-cooled to the room temperature. According to the method, the surface layer of the plate blank substrate is subjected to structure prefabrication, the surface plasticity is improved, the extensibility in the rolling process is improved, and generation of surface cracks is restrained.

To provide a prefabrication method for a layered wall that can integrate tiles and a heat insulation layer without breakage.SOLUTION: A layered wall cantilevers a tile and a mold on both sides of a core concrete layer to form a structure which has rigidity like a core tube steel structure and also allows elastic deformation, a heat insulation layer is charged between the tile and core concrete layer and connected with a precast outer support rod to be completely cast, layer by layer, without inversion, wherein the title is not broken owing to inversion, sandwiched between the heat insulation layer with elasticity and a mold for another layered wall to be securely hardly broken during warehouse storage / transportation, and also securely hardly broken in crane assembly, the heat insulation layer is sandwiched inside to be securely hardly dropped or broken, and a wind leak and a cold bridge are evaded with the precast outer support rod. On casting the core concrete layer, operations to connect with an outer support tile layer, block the cold bridge, and block convection are completed, so that the method is simple and easy to operate.SELECTED DRAWING: Figure 1

The invention relates to the technical field of tunnel engineering prefabricated part production, in particular to a large-diameter duct piece independent kiln assembly line conveying prefabricating method and system. S2, a reinforcement cage and an embedded part are installed; s3, concrete is precisely poured and vibrated; s4, pre-curing and surface treatment; s5, carrying out roller way type flow conveying; s6, hydration heat-driven dynamic maintenance is carried out; and S7, demolding and finished product detection. And S8, mold circulation. According to the large-diameter duct piece prefabricating production line, through technical innovation in multiple aspects of mold, conveying, maintenance, control and the like, the core technical problem in existing large-diameter duct piece prefabricating production is solved, high-precision, high-efficiency, low-energy-consumption and green production of large-diameter duct pieces is achieved, and the large-diameter duct piece prefabricating production line has remarkable technical advantages and wide application prospects and is suitable for large-diameter duct piece prefabricating production. The method can be widely applied to infrastructure construction projects such as shield tunnels, open caisson projects and underground comprehensive pipe galleries.

The utility model discloses a template embedded type dam face permanent heat preservation protection module. Comprising a heat preservation core layer, a facing anti-seepage protection layer is arranged on the side, close to a concrete pouring formwork, of the heat preservation core layer, an internal pressure-bearing protection layer is arranged on the side, close to dam surface layer crack limiting steel bars, of the heat preservation core layer, and a thermal broken bridge supporting keel is arranged in the heat preservation core layer; an anchoring device is arranged in the area between the internal pressure-bearing protection layer and the dam surface layer crack limiting steel bars. The modular prefabrication and construction method is adopted, the prefabrication and installation method of a single module is simple and efficient, details such as anchoring protection measures are fully considered, the engineering construction operability is high, convenience and high efficiency are achieved, and the construction time of the heat preservation layer is greatly saved.

The invention belongs to the technical field of component prefabrication, particularly relates to a digital twinning-based fabricated building prefabricated component production process, solves the problems of insufficient quality and low construction efficiency in the prior art, and constructs virtual mapping of a design-production-construction whole process through a digital twinning technology. The method realizes data-driven intelligent decision making and flexible production, and specifically comprises the following steps: an intelligent design cooperation stage: a complete quality guarantee system is constructed through arrangement of structures such as an AI visual detection system and a block chain traceability system, the AI visual detection system adopts a multispectral imaging and deep learning technology, and the AI visual detection system adopts a multi-spectral imaging and deep learning technology; various defects on the surface of the component can be accurately identified, a visual thermodynamic diagram is generated, and a quality closed loop is realized by matching with an automatic repairing function of a mechanical arm; the block chain traceability system links the whole process quality data in real time through an encryption technology, and when a detection value does not reach the standard, the intelligent contract automatically triggers a rectification process and locks a problem component to form a complete quality prevention and control chain.

The invention relates to a method for monitoring prefabrication and assembly errors of a steel box laminated continuous box girder bridge, and belongs to the technical field of data processing. The method comprises the following steps: collecting prefabrication and assembly error monitoring data of the steel box superposed continuous box girder bridge, and marking the data; an error prediction model is constructed, wherein the error prediction model comprises a physical constraint feature fusion layer, a causal convolution layer, a Bayesian uncertainty propagation layer, a residual attention mechanism module and a dual-channel gating fusion module; training the model by adopting the marked data; in the training process, optimizing the model by constructing mixed loss to obtain a trained model; and aligning timestamps of the collected structure parameters, construction processes, environment parameters and measurement and state parameters of the new prefabricated segment, integrating the parameters into an input sample isomorphic with the training set, and inputting the input sample into the trained model to obtain a prediction result. According to the invention, systematic deviation can be effectively eliminated, and high-robustness and high-precision error prediction is realized.

The invention discloses a construction method for integrally prefabricating and hoisting an arc-shaped bracket of a ceramic brick curtain wall. The construction method comprises the following steps: paying off on the ground; welding and splicing the keels; mounting an elastic clamping sheet; the earthenware brick is installed, the earthenware brick is inclined by 30 degrees, a notch in the lower end of the earthenware brick is matched with a lower clamping piece of an elastic clamping piece in an inserted mode, the earthenware brick is vertically erected, an upper clamping piece of the elastic clamping piece strides over the side wall of the earthenware brick in the erecting process and is lapped at the notch, and the upper clamping piece of the elastic clamping piece is clamped into the notch in the upper end of the earthenware brick; earthenware bricks at the arch modeling position are sequentially installed layer by layer from the middle position of the arc top to the two sides, and plane earthenware bricks are sequentially installed layer by layer from bottom to top; caulking and beautifying; embedding a glue stick between gaps on the back surfaces of the earthenware bricks, protecting all the earthenware bricks by adopting an adhesive tape, and then filling the gaps by adopting a caulking agent; and checking an outer vertical surface and integrally hoisting. According to the method, earthenware bricks can be rapidly installed, the installation difficulty is reduced, meanwhile, hoisting is conducted after preassembling, and the positioning precision is guaranteed.

The utility model provides a concrete shear wall with prefabricated steel reinforcement frameworks and UHPC (Ultra High Performance Concrete) templates, which comprises at least two steel reinforcement frameworks, a steel reinforcement connecting cage for connecting the upper and lower steel reinforcement frameworks, and UHPC plates connected to the peripheries of the steel reinforcement frameworks, concrete is poured between the UHPC plates; the connecting points of the steel reinforcement framework are welded, so that the whole steel reinforcement framework can be independently stressed, and the overall supporting strength is enhanced; the welding of the two edge member reinforcement cages can provide support during the welding of the middle part main body reinforcement cage; uHPC has the advantages of being high in strength, good in durability, good in impermeability and the like, and the problems of cracking, corrosion and the like of the shear wall can be effectively prevented when the UHPC is used as a permanent formwork of the shear wall; meanwhile, the steel reinforcement framework of the concrete shear wall and the UHPC board are manufactured into a whole in a factory prefabrication mode, direct pouring can be achieved only by erecting a side face formwork after site hoisting is conducted in place, and the site construction process is greatly reduced.

The invention discloses a method, a device, equipment, a medium and a product for calculating carbon emission of a steel structural component, and the method comprises the steps: carrying out the data monitoring and collection of a prefabrication process of each steel structural component, so as to obtain energy consumption data, material consumption data and environment CO2 concentration dynamic change data; calculating the unorganized dissipation amount of the greenhouse gas according to the dynamic change data of the CO2 concentration of the environment; according to the energy consumption data, the material consumption data and the unorganized greenhouse gas dissipation amount, calculating the carbon emission of each steel structural member prefabricating process and the carbon emission of a workshop sharing project; and adding the carbon emission of the prefabrication process and the carbon emission of the workshop sharing project to obtain the carbon emission of each steel structural member in the prefabrication process. According to the method, all energy and material consumption generated due to component prefabrication requirements in the steel component prefabrication stage, carbon emission of workshop shared projects and carbon emission caused by unorganized greenhouse gas dissipation are considered, and therefore the accuracy of calculation of the carbon emission of the steel structural component can be effectively improved.

The utility model provides a modular unit and a modular assembly type multi-cavity corrugated steel plate silo, and belongs to the field of steel plate silo storage. The problems that a traditional assembly type granary is poor in sealing performance, poor in storage effect and difficult to assemble, disassemble and transform, and a single-layer assembly type granary is poor in heat preservation effect are solved. Comprising splicing profile steel I and splicing profile steel II which are located at the ends of the two sides and at least one piece of in-arc profile steel between the splicing profile steel I and the splicing profile steel II, and the splicing profile steel I and the splicing profile steel II are detachably connected through two matched lug plates. The stiffening steel plate on the splicing profile steel I is sequentially connected with the stiffening steel plate of at least one arc inner profile steel and the stiffening steel plate of the splicing profile steel II through the cover plate I. The arc-shaped steel plates are arranged inside, outside or in the middle of the module units. Through the measures of factory prefabrication, multi-cavity segmentation, on-site modular installation, profile steel stiffening, inner filling of heat preservation and heat insulation materials and the like, the overall strength, construction convenience and heat preservation and moisture retention of a traditional single-layer / single-cavity corrugated steel side wall are enhanced.

The invention discloses a chemical conveying pipeline prefabrication welding device, and relates to the technical field of pipeline welding, the chemical conveying pipeline prefabrication welding device comprises a welding frame and a clamping frame, a clamping groove is formed in the upper end of the welding frame, a first conveying roller, a first clamping block and a second clamping block are symmetrically arranged in the clamping groove, and an adjusting assembly is arranged in the welding frame. Two third clamping blocks are slidably arranged in the clamping frame, a switching mechanism is arranged on the gear ring, a moving box is arranged on the other side of the welding frame, driving mechanisms are arranged on the inner side of the first rail frame and the inner side of the second rail frame, an adjusting box is arranged above the moving box, and a limiting mechanism is arranged at the upper end of the adjusting box. According to the pipeline welding device, a third clamping block is arranged on the inner side of the clamping frame, to-be-welded pipelines at different angles can be conveniently clamped and fixed by the third clamping block, a second conveying roller and a fourth clamping block are arranged above the adjusting box, and driving mechanisms are arranged below the moving frame and the moving box correspondingly, so that continuous welding is conducted.

The invention discloses a cement wall prefabricating drilling device for building construction, and relates to the technical field of building construction equipment, the cement wall prefabricating drilling device for building construction comprises a supporting bottom plate and further comprises a first drilling mechanism, and the first drilling mechanism is located above the supporting bottom plate. Therefore, the first drilling operation table is driven to be adjusted in the overall direction, the drilling requirements of different directions are met, the equipment use flexibility of overall drilling operation is improved, and the device is suitable for various scenes. According to the drilling equipment, the driving adjusting mechanism is arranged, large particles cannot enter a fixing box, recycling treatment is conducted through a recycling box at the bottom, classified storage is conducted on equipment needed on site through a classified storage box, drilling modes of different states are switched according to drilling scene needs, and the drilling efficiency is improved. And meanwhile, the functions of storage of equipment required during drilling, field environment purification during drilling, field equipment movement and the like are integrated.

The invention relates to the technical field of aluminum formwork construction, aims to solve the problems that in traditional aluminum formwork construction, grout leaks at formwork abutted seams, bubbles are formed on the surface of concrete, and the concrete forming quality is influenced, and provides a construction method for improving the aluminum formwork concrete forming quality, and the construction method comprises the following steps that S1, an aluminum formwork is deeply designed; s2, factory prefabrication; S3, on-site assembly; S4, concrete pouring; S5, aluminum mold dismantling; the aluminum formwork is optimally designed, the exhaust holes are formed in the formwork, the waterproof breathable film is installed, water vapor on the surface of concrete can be effectively removed, bubbles are prevented from being formed on the surface of the concrete, and the forming quality of the surface of the concrete is improved; the structure of the aluminum mold joint is optimized, a positioning groove is designed at the splicing part of the template, and an elastic sealing embedded strip is designed in the positioning groove, so that the problem of slurry leakage of the aluminum mold joint is effectively avoided; and the attached vibrator is combined with a water-vapor separation structure, so that the overall vibrating effect of concrete in the aluminum mold is improved, and the concrete forming quality is improved.

The invention discloses a construction method for prefabricating and assembling a seabed energy storage tank through prestress, and belongs to the technical field of structural engineering. The energy storage tank comprises a plurality of sub-spherical shell units and prestressed reinforcements. The construction method comprises factory prefabrication and field assembly processes of the plurality of sub-spherical shell units. The sub spherical shell units are made of common concrete or ultra-high performance concrete or ultra-high toughness concrete, PVC or metal corrugated pipes used for allowing prestressed steel bars to penetrate through are pre-buried in the shell framework, and anchorage device positioning grooves are reserved in the edges of the shell framework. A plurality of sub spherical shell units are sequentially spliced on site, high-strength prestressed steel bars are arranged in a pipeline in a penetrating mode and are tensioned in a segmented mode, anchorage devices are installed at the ends of the steel bars for fixing, and an overall spherical structure is formed. And sprayed concrete materials are applied to the joints and the positioning grooves for sealing, so that a closed energy storage spherical tank structure is formed. The method is suitable for an energy storage system in a deep sea high-pressure environment, and has the characteristics of simple and convenient construction process and good structural integrity and water tightness.

The invention relates to the technical field of diamond saw blades, in particular to a laser welding diamond saw blade for ultra-narrow slit cutting and a preparation method of the laser welding diamond saw blade. The copper-cobalt-tin alloy material comprises the following raw materials: copper-cobalt-tin alloy powder, tungsten carbide powder, titanium-aluminum nitride, spherical cobalt powder, rare earth yttrium powder, ferrophosphorus powder and diamond abrasive particles. According to the preparation method, the core of the preparation method lies in the combination of powder metallurgy prefabrication of the tool bit and the precise laser welding process, especially the innovative laser welding process, and the prepared diamond saw blade is high in welding seam strength, narrow in heat affected zone and extremely small in matrix deformation; the problems of base body deformation, insufficient welding seam strength, short service life and the like of a traditional saw blade in the ultra-narrow seam cutting process are solved, and the saw blade is perfectly suitable for ultra-narrow seam cutting scenes with extremely high requirements for precision and stability.

The invention relates to the technical field of hovercraft assembly, and discloses a method for assembling a propeller tower and a short engine room of a hovercraft, which is characterized in that a detection line reference system of a chassis frame and a height marker post is arranged at a ground prefabrication stage, so that the positioning adjustment of the propeller tower and the short engine room is completely completed at a low-altitude site; the operation risk that a scaffold is repeatedly erected and disassembled during high-altitude hoisting of a slipway in a traditional technology is avoided, a three-dimensional space positioning network is constructed by combining the plane datum of the chassis frame and the vertical datum of the height marker post, the precision error in the combining process is reduced, high-altitude closing operation of a traditional slipway stage is moved forwards to the ground site to be completed, and the working efficiency is improved. And the short engine room-paddle tower module only needs to be hoisted and positioned once when the ship body is finally carried, so that the processing period of a slipway is shortened, and the production cost of the hovercraft is further reduced.

The invention provides a quality control method and system for a small box girder, and the method comprises the following steps: constructing a small box girder design BIM model according to a bridge design drawing; converting the BIM design model of the small box girder into discrete point cloud; obtaining a prefabricated field template point cloud, and preprocessing the prefabricated field template point cloud; performing registration on the point cloud model and the BIM model; and selecting a control point on the registered point cloud model as a reference for external mold control lofting, and calculating and evaluating field lofting data. According to the quality control method and system for the small box girder provided by the invention, the point cloud is generated by adopting BIM model interpolation, high-precision registration is completed in combination with a point cloud-point cloud registration algorithm, and the registration effect is evaluated based on the root-mean-square error. And closed-loop quality control from design to construction reduces manual intervention and can realize full-process digitization. And through algorithm fusion and error registration, engineering requirements are met, and the precision is effectively improved. The problems that a traditional method is low in precision and poor in efficiency are solved.

A large immersed tube full-section prefabricated lightweight formwork system comprises an inner formwork rack and an outer formwork rack, the inner formwork rack comprises an inner formwork fixing frame and an inner supporting rod assembly, the outer formwork rack comprises a top truss and two outer side trusses, an inner formwork comprises an inner formwork body and a lower chamfering part, and the inner supporting rod assembly comprises an inner supporting connecting rod and an inner telescopic oil cylinder. According to the embodiment of the invention, the inner template mounted on the inner template rack extends to the lower chamfer, and the three inner support connecting rods which are in the same straight line under the support of the two inner telescopic oil cylinders are used as the inclined support structure, so that the concrete which is firstly solidified at the lower chamfer can upwards support the horizontal part at the top of the inner template through the inclined support structure; and under the conditions of large span and large weight, the top plate reinforcing steel bars are stably supported, and the situation that the prefabrication precision of the immersed tube top plate is reduced due to downward deformation of the top plate reinforcing steel bars is avoided.

The invention relates to an assembled low pile cap structure and a construction method thereof, and relates to the field of port wharf engineering. The structure comprises a pile foundation, an upper hollow structure, a top panel and a leveling cushion layer. The pile foundation is embedded into a soft soil foundation on the outer side of a wharf, the upper permeable structure is arranged above the pile foundation, and holes are reserved in the bottom according to the pile foundation; a leveling cushion layer is arranged between the pile foundation and the upper transparent structure; and the top panel is arranged above the pile foundation. The construction method comprises the steps that the upper permeable structure is of an integrated assembly type structure and is machined and manufactured in a prefabrication factory; a pile foundation is inserted, a leveling cushion layer is arranged, corresponding reserved holes of the upper permeable structure are connected with the pile foundation, and grouting anchoring is carried out; and a top panel is arranged above the upper permeable structure, and the low pile cap structure is assembled. The foundation piles serve as stress foundations, the upper portion is of an assembly type permeable structure, durability is good, environment friendliness is achieved, construction is easy and rapid, and the foundation pile can be widely applied to the inland river excavation type harbor basin wharf.

The beam and slab prefabrication integrated production line comprises a steel bar machining unit, a movable mold table, a mold closing mechanism, a concrete pouring unit, a steam curing unit and a finished product transferring unit which are sequentially arranged along a ground rail. A T-shaped steel reinforcement framework is formed by the steel reinforcement machining units, a pouring area is defined by the strip-shaped mold table, the T-shaped mold plate and the side mold plate through the unique structural design of the movable mold table, and the side mold plate can move along the oblique sliding base. The mold closing mechanism realizes mold closing through a hydraulic rod; the finished product transfer unit transfers finished products through cooperation of a hydraulic supporting rod and a transfer trolley. The production line effectively solves the problems of large demolding friction, high energy consumption, low efficiency and the like of a traditional T-shaped beam plate prefabrication production line, can improve the prefabrication quality and production efficiency of the T-shaped beam plate, and is suitable for large-scale bridge engineering construction.

The invention discloses an assembly type machine room sub-module design system based on a BIM model and a three-constant system, and high-precision modular design of a machine room is realized through BIM parametric modeling, three-constant system performance analysis, graph theory module division, prefabricated member design, assembly process planning and CFD simulation verification. The system integrates the block chain and the knowledge graph technology, supports the prefabrication rate being greater than or equal to 85%, reduces the energy consumption by 25%, solves the problems of low construction efficiency and poor precision of a traditional machine room, and provides technical support for a smart building.

A permanent-temporary combined square block and caisson combined gravity type wharf comprises a land area rear storage yard, a temporary prefabricating yard used for prefabricating square blocks and caissons is arranged on the land area rear storage yard, the temporary prefabricating yard is communicated with square block structural sections through caisson shipping channels, and the square block structural sections are arranged along the coast and serve as caisson temporary shipping wharfs. The caisson shipping channel is used for transporting prefabricated square blocks and caissons; and after the caisson is transported out through the caisson shipping channel and the square structure section, the caisson is arranged to be connected with the square structure section into a whole, and the caisson structure section wharf is formed. According to the wharf, a site does not need to be additionally found to serve as a prefabrication yard and a temporary wharf as a construction site, and the temporary shipping wharf and part of the prefabrication yard are combined permanently and temporarily, so that wharf construction and dismantling cost can be saved.

The invention discloses a novel reinforced concrete prefabricated pipe gallery construction method, relates to the technical field of industrial and civil structure reinforced concrete prefabricated pipe galleries, and solves the technical problems of short construction period and low cost. The method comprises the steps that firstly, concrete beams and columns of the reinforced concrete pipe gallery are split according to a construction drawing and then prefabricated in a prefabrication yard; 2, after construction of the cup foundation is completed, the corresponding prefabricated columns and prefabricated beams are transported to the side of the foundation, the prefabricated columns are hoisted and fixed in the cup foundation, temporary inclined struts are installed, then the prefabricated beams are installed and fixed layer by layer through an elevator or a crank arm vehicle, and formwork clamps are installed at the beam column connecting joints; thirdly, after completion, high-strength-grade non-shrinkage concrete is poured, and therefore the transverse frame without weakening of the integrity is formed; the construction method is simple and easy to operate, and the requirement for the construction technology is not high.