27results about How to "Improve construction accuracy" patented technology

This invention discloses a method for overlapping construction of waterproofing systems in existing subway lines. It relates to the field of underground engineering waterproofing construction technology and includes: Step 1, current status investigation and deformation assessment; Step 2, overlapping structure system design; Step 3, key material selection and process matching; Step 4, refined overlapping construction process; and Step 5, full inspection after each process. This invention's method for overlapping construction of waterproofing systems in existing subway lines, through Step 1, involves structural deformation monitoring and analysis and diagnosis of the existing waterproofing layer; Step 2, involves deformation adaptation structure design and differential deformation compensation design; Step 3, involves material selection and process innovation; Step 4, involves base treatment, interface treatment, expansion joint and node construction, and reinforcement layer construction; and Step 5, involves process inspection. This method, tailored to the characteristics of existing subway lines, enables the effective combination of different waterproofing materials, adapts to continuous deformation, and ensures long-term reliability.

This invention discloses a method for identifying the connection location of underground dissimilar pipelines based on 3D image reconstruction, belonging to the field of location recognition technology. It addresses the problems of distorted spatial structure representation and insufficient accuracy in determining connection locations. By segmenting the underground pipeline, fusing ground-penetrating radar reflection data and electromagnetic detection results, abrupt gradient coefficients are calculated to mark potential material abrupt change segments. 3D scan data of the marked segments are retrieved, and combined with scan density and segment structure information, connection candidates are generated. Enhanced scanning is performed on the candidates, and the pit landing point is determined through spatial coarseness features. The existence of a connection interface is determined based on local point clouds, regional point clouds are extracted, and axis fitting is performed on the regional point clouds to obtain 3D misalignment data of the pipelines on both sides. The construction area is divided based on the soil obstacle density around the connection interface, and the connection center point is output based on misalignment constraints. This significantly improves construction accuracy and reduces the risk of blind excavation.

The invention provides a kind of buried track bed plate, track bed and its construction method, because with multiple buried vibration isolators, plate body is arranged on the basement by multiple rubber springs, adopts point support mode to cut off the rigid connection between track structure and basement structure, absorbs the impact energy when train runs, realizes vibration reduction and noise reduction.The construction method of the invention combines the concept of prefabricated building, can improve construction accuracy and effect, the plate body uses prefabricated plate, the mounting seat of buried vibration isolator is pre-buried below the plate body, during construction, only need to place the height adjusting washer and spring assembly containing rubber spring on the basement at the set vibration isolator position, then place the prefabricated plate on the basement, make the upper end of spring assembly embedded in the corresponding mounting seat, the construction of buried track bed plate can be completed, therefore, construction is convenient, short construction period, suitable for track construction on viaduct.

The application provides a new line railway transmission and data network port intelligent planning method and system, relates to the railway communication technical field, and solves the technical problems of low efficiency, easy error and difficulty in meeting complex design specifications caused by the dependence of the existing railway communication port planning on manual experience. The method comprises the following steps: obtaining a business requirement list and a device resource list; constructing a constraint optimization model based on a preset port planning rule library; based on the business requirement list and the device resource list, the constraint optimization model is optimized and solved by a constraint optimization algorithm to obtain a port allocation result; based on the port location in the port allocation result and the physical distance between the device cabinet and the ODF frame, the tail fiber length is calculated; the port allocation result and the tail fiber length are structured and coded and integrated to obtain a port configuration account. The application is used in the new line railway transmission and data network port planning process.

The utility model relates to bridge engineering technical field, and disclose a kind of steel box girder and concrete pier column consolidation structure, including steel box girder, concrete pier column, shear nail and the adjusting member for adjusting the elevation of steel box girder installation, concrete pier column top is reserved with shear key, steel box girder bottom is equipped with for with concrete pier column top socket joint connection's notched, concrete pier column top outer circumferential wall is equipped with the slope of being inserted easily, concrete pier column top is inserted in the inside of notched, adjusting member includes jacking corbel and jack, jacking corbel is connected by bolt with the reserved planting bar on the outer wall below concrete pier column, jack is installed in jacking corbel top, jack top and steel box girder bottom are abutted. The present application is simple in structure, high in precision of factory prefabrication, force transmission is direct in socket design, stress concentration is small, and the elevation of section member is accurately adjusted, convenient for construction, applicable to complex environment and large-span bridge.

This utility model discloses an integrated rebar positioning device for slipform construction of circular silo walls, relating to the field of slipform construction technology for circular silo walls. The integrated rebar positioning device includes a positioning rebar module, a support frame module, and a slipform lifting frame module. The positioning rebar module includes arc-shaped horizontal rebars with positioning rings welded to their outer surfaces. The support frame module includes a U-shaped support frame with threaded mounting grooves at both ends, through which positioning screws are threadedly connected. The slipform lifting frame module includes lifting frame legs with a lifting frame crossbeam welded to the top of each leg. The outer surface of the crossbeam has positioning through holes. This utility model, through modular design and synchronous lifting with the slipform system, achieves fully automated control of the rebar positioning process, overcoming the problems of concrete cracking and structural instability caused by rebar misalignment in traditional processes, significantly improving construction quality and efficiency.

The utility model relates to the technical field of concrete pouring, in particular to a concrete pouring device which comprises a support, a pouring box body is arranged on one side of the support, a pouring outlet is fixedly installed on one side of the pouring box body, a pouring guide pipe is installed on one side of the pouring outlet, and the pouring outlet and the pouring guide pipe are connected through a connector. The stabilizing assembly is mounted on the outer side of the perfusion catheter, and the stabilizing assembly is used for keeping the stability of the perfusion catheter; and the supporting assembly is installed on one side of the stabilizing assembly, and the supporting assembly is used for installing the stabilizing assembly. Compared with the prior art, multi-point clamping and limiting of the concrete pouring guide pipe are achieved through the stabilizing assembly, a stable and reliable fixing structure is constructed, the guide pipe is effectively prevented from inclining, swinging or loosening due to concrete flow impact and construction vibration, it is ensured that the pouring guide pipe is kept perpendicular or at a preset angle all the time, and the construction efficiency is improved. The pouring quality and the construction safety are improved, and the good popularization value is achieved.

This invention belongs to the field of unmanned construction technology and discloses a collaborative intelligent unmanned control method and system for asphalt pavement paving equipment clusters. The method includes: integrating and outputting standardized sensing data streams; performing initial path planning based on the standardized sensing data streams and pre-set construction tasks; based on the initial path planning results and the standardized sensing data streams, invoking a multi-field coupling model, a load balancing strategy library, and a fuzzy PID control algorithm to calculate construction quality risk nodes, equipment collaborative status, and process parameter deviations in real time, generating a primary control instruction set; evaluating the collaborative relationship and optimizing the risk-benefit of the primary control instruction set, the standardized sensing data streams, and the material lifecycle traceability database to obtain an optimized control instruction set; and distributing the optimized control instruction set to the execution units of the paving equipment to perform collaborative operations. This invention significantly improves construction accuracy and effectively solves problems such as uneven accuracy in traditional construction methods.

The application discloses an arc-shaped inclined concrete structure wall construction structure and a construction rechecking method, and relates to the construction field. The construction structure comprises a bottom plate for limiting a wall, a top plate, a stand, a wall inner wood mold and a wall outer wood mold, an arc-shaped measuring tool, a wall steel reinforcement cage, a screw rod, a reinforcing keel and an external support frame. The cross sections of the bottom plate and the top plate are both circular, and the sizes of the circles are different. The construction rechecking method comprises the following steps: bottom plate pouring; stand and top plate pouring; support frame erection; wall outer wood mold rechecking; wall inner wood mold rechecking; arc-shaped inclined concrete structure wall pouring; removing the wall inner wood mold and the wall outer wood mold; and rechecking the arc-shaped inclined concrete structure wall to determine whether the chord height of the wall is consistent with the theoretical chord height. According to the counting scheme, the wall wood mold can be measured twice before wall pouring, the construction accuracy of the wall is greatly improved, and the wall itself can be measured after wall pouring to check whether the wall construction is accurate.

The application relates to a slope protection gradient control device, and relates to the technical field of roadbed slope protection construction.The device comprises an angle steel, which is arranged on an existing retaining wall at the toe of a slope; a telescopic adjusting rod, which is arranged on the angle steel and can rotate in a vertical plane to control the gradient of the slope protection, and the included angle between the adjusting rod and the horizontal direction is equal to the gradient angle of the slope protection; and a slope protection formwork, which is fixed on the slope surface and is used in cooperation with the adjusting rod to limit the pouring range of the slope protection concrete. The device is fixed on the existing retaining wall through the angle steel, the structure of the retaining wall is fully utilized, and no additional supporting structure is needed; the gradient of the slope protection can be accurately controlled through the adjusting rod, the rigidity support of the adjusting rod and the slope protection formwork, and the included angle between the adjusting rod and the horizontal direction can be adjusted according to requirements to accurately control the slope gradient; the overall structure is simple and reliable, the device is convenient to install and disassemble, can be repeatedly used in different engineering projects, and the construction cost is reduced.

This invention discloses a single-lock curtain wall with a non-intrusive clamp hoisting component and its construction method, belonging to the field of building curtain wall technology. It solves the technical problems of traditional post-installed embedded components damaging the main structure, difficult rebar installation, low installation accuracy, and poor adaptability. The single-lock curtain wall includes a post-installed clamp assembly, a beam structure, a reinforced load-bearing component, a hoisting cable assembly, and a curtain wall assembly. The post-installed clamp assembly consists of a load-bearing plate, a tie plate, a reinforcing plate, and a hoisting plate. It forms a ring-shaped non-intrusive structure by bonding and welding with architectural AB adhesive. Combined with the differentiated reinforcement structure of the beam structure, it achieves uniform load transfer. The construction method includes on-site material customization, non-intrusive installation of the clamp assembly, precise curtain wall suspension, and intelligent monitoring with a total station. The monitoring system captures millimeter-level displacement through a prism, forming a closed-loop control of measurement-feedback-adjustment.

This invention discloses a construction method for a 110kV substation power transmission line, comprising four core steps: 1. Line and tower foundation re-survey, using professional measuring tools and methods to control the accuracy of parameters such as line straightness and turning angle; 2. Tower foundation construction, encompassing foundation pit preparation, pit excavation, rebar tying, formwork installation, concrete pouring and curing, strictly controlling pit opening dimensions, rebar welding quality, and concrete strength; 3. Tower erection, using cranes for segmented hoisting, standardizing lifting point settings, bolt tightening, and accessory installation to ensure tower structural stability; 4. Overhead line erection, employing tension-based conductor laying technology for graded conductor deployment, combined with sag adjustment, tension tower stringing, and accessory installation to ensure line erection quality. This invention, through standardized and refined process design, improves construction accuracy and efficiency, enhances the safety and stability of line operation, and is suitable for large-scale construction of 110kV substation power transmission lines.

This invention proposes a construction device and its method for protective opening of existing building walls. The construction device includes a guide rail module, a cutting module, a dust removal and cooling module, and a safety control module. The method of using the device involves positioning and laying out lines, installing the guide rail module, installing the cutting module, connecting the cutting module to the dust removal and cooling module, and installing the safety control module. After installation, the cutting module is adjusted to the top of the guide rail module. After inspection, the dust removal and cooling module and the cutting module are activated and positioned. Then, the cutting module is controlled by the handwheel on the cutting module to cut and move the wall. During the cutting process, the control force of the safety control module is adjusted simultaneously to ensure the safety of the cutting process. The construction device and its method of use, through reasonable mechanical design, enable the equipment to cut walls safely and quickly, while optimizing the wall-building steps and methods, improving efficiency and reducing costs.

The present application belongs to the technical field of steel structure bridge construction, and particularly relates to a petal-shaped double-curved-surface special-shaped steel bridge tower and a manufacturing method thereof. The present application is designed to connect a plurality of tower columns to form a whole, which helps to enhance the stability of the petal-shaped double-curved-surface special-shaped steel bridge tower structure, effectively avoids tilting, deformation and other phenomena under the action of earthquakes, strong winds or traffic loads, and further improves the safety of the bridge. The middle parts of the adjacent tower columns are not connected to each other, which helps to manufacture and install in sections during the construction process, simplifies the construction process, effectively reduces the construction difficulty and improves the construction accuracy, and further improves the construction quality of the petal-shaped double-curved-surface special-shaped steel bridge tower. Compared with the manufacturing and construction of the linear steel bridge tower, the present application has the excellent characteristics of good forming effect, fast assembly speed, less investment in manpower and materials, low production cost, high economic benefit, and further improved production efficiency.

This utility model relates to a road and bridge crack reinforcement structure, belonging to the technical field of road and bridge crack reinforcement structures. The road and bridge crack reinforcement structure includes: a base, carbon fiber cloth and guide components, a frame, a bidirectional threaded rod, a support frame, guide rollers, and pressure rollers. The guide rollers and pressure rollers rotate on the same horizontal plane. The bidirectional threaded rod can adjust the distance between the two support frames to accommodate reinforcement requirements of carbon fiber cloth of different widths. Guide rollers and pressure rollers are movably inserted into the two support frames to ensure the carbon fiber cloth remains flat during laying. The guide components are located on both sides of the support frames and are movable at both ends of the guide rollers to prevent the carbon fiber cloth from shifting during laying. The carbon fiber cloth is movably sleeved on the surface of the bidirectional threaded rod, with one side sliding along the surface of the guide rollers and pressure rollers. Through the compaction action of the pressure rollers, the carbon fiber cloth is tightly adhered to the crack surface, thereby effectively improving the load-bearing capacity and durability of the bridge structure.

The application aims at the problem of long process connection time, and provides a highland tunnel waterproof and drainage integrated construction device, relating to the technical field of tunnel waterproof and drainage, comprising: a mobile trolley arranged along the longitudinal direction of the tunnel and provided with a walking mechanism at the bottom; a waterproof operation unit arranged at the front of the mobile trolley and comprising a waterproof plate winch mechanism, a hot melt welding mechanical arm and a grouting assembly, the waterproof plate winch mechanism is used for unwinding the waterproof plate, the hot melt welding mechanical arm is used for fixing the waterproof plate on the surface of the initial support of the tunnel, and the grouting assembly is used for injecting filling slurry between the waterproof plate and the initial support; the application realizes waterproof and drainage integrated construction, so that the waterproof layer and the drainage groove are constructed synchronously and seamlessly overlapped, and the leakage hidden danger of the joint caused by the separation of traditional processes is completely eliminated.

This application discloses a formwork fixing tie rod mechanism, relating to the field of road and bridge construction. The adjusting assembly includes a threaded rod and two fixing plates. Both ends of the threaded rod penetrate and fit against the two side templates. The two fixing plates are symmetrically installed on both sides of the threaded rod and fixedly connected to the corresponding template outer walls. One end of the threaded rod has a Z-shaped structure. A first sealing ring is fitted onto the outer wall of the threaded rod and presses against the inner wall of the template. A second sealing ring is fitted onto the outer wall of the threaded rod and presses against the outer wall of the fixing plates. The fixing assembly includes multiple threaded holes formed on the surface of one of the fixing plates and a connecting rod penetrating the threaded rod. The connecting rod is inserted into an end slot at one end of the Z-shaped structure of the threaded rod and threadedly connected to the threaded holes. The multi-angle locking design of the connecting rod and the threaded holes in this application effectively prevents the threaded rod from loosening due to construction vibration or temperature changes, ensuring the stability of the template system during long-term use.

A leveling interference-free device for a slip-form construction platform relates to the technical field of slip-form construction and comprises a support frame mounted at the upper end of a warehouse wall, the support frame is arranged above the construction platform and between two adjacent slip-form support rods, a gradienter is mounted on the support frame, and the support frame consists of a vertical rod, a transverse rod and a steel plate base. The lower end of the vertical rod is inserted into concrete just poured into a slip form at the upper end of the garage wall, the upper end of the vertical rod is provided with a transverse rod, the transverse rod and the vertical rod are fixed through a fastener, the other end of the transverse rod is provided with a transversely-arranged steel plate base, and the gradienter is installed on the upper end face of the steel plate base; the supporting frame is separated from the working platform, interference of shaking of the construction platform on a gradienter is avoided, leveling is facilitated, and construction precision is improved; the vertical rods are correspondingly lengthened along with rising of slip form concrete, and the upper transverse rods can move upwards along the vertical rods at any time through opening and closing installation of the fasteners.

This invention discloses a centering device structure with a pipe-holding function, including a pipe-holding centering device base mounted on a drilling rig. Two left-right swing brackets are symmetrically hinged on the pipe-holding centering device, and two left-right swing supports are hinged opposite each other at their middle portions. Two outer clamping plates are oppositely mounted on the two left-right swing supports. During drilling operations, two internal drilling chucks are oppositely mounted on the two external clamping plates, and a drilling connection frame is located between the ends of the two left-right swing brackets away from the pipe-holding centering device base. When the drilling rig needs to perform casing installation, two internal pipe-holding clamping plates are oppositely mounted on the two external clamping plates, and a pipe-holding cylinder is located between the ends of the two left-right swing brackets away from the pipe-holding centering device base. This invention allows for convenient and timely changes in construction methods according to construction needs, achieving the effects of convenience, speed, improved production efficiency, and reduced labor intensity.

This invention discloses a method for anti-buoyancy reinforcement of shield tunnels spanning utility tunnels in water-rich silty sand strata, comprising: obtaining a stratum distribution model based on three-dimensional geological data of the water-rich silty sand strata; obtaining disaster sign activation signals based on the stratum distribution model; obtaining preliminary layout parameters of the defense barrier based on the disaster sign activation signals; obtaining a drainage joint scheme based on the preliminary layout parameters of the defense barrier; obtaining a spatial composition network based on the drainage joint scheme; obtaining optimization iteration results based on the spatial composition network; obtaining construction sequence data based on the optimization iteration results; and obtaining the final stability mitigation index based on the construction sequence data. This invention can significantly improve the anti-buoyancy stability and construction safety of utility tunnels in water-rich silty sand strata, providing efficient and replicable technical support for disaster prevention and control in underground engineering under complex geological conditions.

The invention discloses a prefabricated jig frame for web steel bars in hanging basket cantilever construction and a construction method of the prefabricated jig frame, and relates to the technical field of box girder construction. The prefabricated jig frame comprises a supporting part and a mounting part which are connected through a fixed connecting rod and arranged in parallel. The supporting part comprises a supporting part stand column and a horizontal rib comb tooth clamping groove rod. The installation part comprises installation part stand columns, the installation part stand columns are fixedly connected through horizontal connecting rods, a fixed end head rod is arranged on the side, back on to the supporting part, of one end of the installation part, an adjustable end head is installed at the other end of the installation part, and the adjustable end head is installed on the horizontal connecting rods; a fixed comb tooth clamping groove rod and three adjustable comb tooth clamping groove rods are arranged on the portion, between the adjustable end and the fixed end rod, of the installation part stand column from top to bottom. The prefabricated jig frame can be adjusted in the length direction, the width direction and the height direction, and universality is high; and in cooperation with ground prefabrication and integral hoisting construction, the construction time can be greatly shortened, the construction quality is improved, and the high-altitude operation risk is reduced.

The application discloses a retreat stopping device and retreat stopping method of pipe jacking equipment, and solves the problem of difficult retreat of equipment and pipe segments during pipe jacking equipment construction in the prior art. The retreat stopping device of the pipe jacking equipment comprises a retreat stopping top iron arranged in blocks, the retreat stopping top iron is arranged on a starting platform or a trolley through a top iron supporting structure, a retreat stopping driving element is connected to the retreat stopping top iron, one end of the retreat stopping driving element is connected to the retreat stopping top iron, and the other end is connected to the trolley or a tunnel portal surface, and the retreat stopping top iron can move forward and backward along the tunnel axis under the action of the retreat stopping driving element. The retreat stopping device of the pipe jacking equipment realizes the retreat function of the pipe segment and the equipment by step-by-step extension of the retreat stopping oil cylinder in the retreat stopping device. Compared with the prior art, the retreat stopping device and retreat stopping method of the pipe jacking equipment can completely avoid the alignment operation of the retreat frame and the pipe segment pin hole, reduce the operation difficulty in the retreat process, improve the tunneling construction efficiency and construction precision, and effectively solve the problem of difficult retreat of the equipment and the pipe segments during pipe jacking equipment construction in the prior art.

This invention discloses a financial data governance method, apparatus, device, and storage medium. The method includes: acquiring several business data tables stored in at least one functional system database within a target financial institution; integrating the business data tables to obtain a standardized data dictionary; determining at least one target subject domain based on the physical structure information of each business data table in the standardized data dictionary; each target subject domain including at least one business data table associated with itself; determining at least one core entity table corresponding to each target subject domain based on the physical structure information of the business data tables contained in each target subject domain; determining the core table relationships between the core entity tables in each target subject domain, and constructing a panoramic entity relationship diagram of the subject domain based on the core table relationships; and storing the panoramic entity relationship diagram of the subject domain to achieve financial data governance of the target financial institution.

The utility model discloses a kind of multi-functional reinforcing steel positioning jig frame, it is characterized in that, including jig frame support, combination reinforcing steel frame is provided on the jig frame support;Two groups of the combination reinforcing steel frame are placed between the bundled reinforcing steel structure, and are connected by connecting bolt;Combination reinforcing steel frame is provided with multiple adjustable reinforcing steel positioners of transverse interval distribution, for adjusting the interval between the reinforcing steel to be bundled.The utility model is characterized in that improve reinforcing steel binding precision, help reinforcing steel overall forming, enhance the integrity of concrete structure, improve construction personnel safety, improve the maintenance function of concrete.

This invention relates to a prefabricated omnidirectional wave energy capture structure and construction method for a circular caisson independent pier, belonging to the field of port hydraulic structures and marine renewable energy utilization technology. The structure is a fully integrated structure of an oscillating water column wave energy device and a circular caisson, including a modular circular caisson energy capture unit, a sealing and anti-corrosion unit, and a top connection and confluence unit. This invention employs a four-chamber annular symmetrical independent sealing layout to achieve 360° omnidirectional energy capture without blind spots; it uses a prefabricated energy-concentrating guide sill to concentrate wave energy and amplify the water column oscillation amplitude; the epoxy-modified cement-based sealing material of this invention can be directly applied to high-humidity surfaces; through secondary connections of water-stop rubber, prefabricated cover plates, and wet joints, it achieves overall structural stability and long-term sealing of the air chambers; the four independent flanges share a single turbine unit, with each chamber having independent air intake without cross-flow or backflow. This invention is convenient to construct, has reliable sealing, stable structure, and high energy capture efficiency, demonstrating significant engineering and industrialization promotion value.