2209results about How to "Improve construction efficiency" patented technology

The invention relates to an anti-ant large-core-number fiber ribbon cable comprising a cable core and an outer sheath. The cable core includes loose tubes; and fiber ribbons are sleeved inside the loose tubes. The outer sheath is an outer nylon sheath; and a non-metallic reinforcement layer is arranged between the outer sheath and the cable core. According to the anti-ant large-core-number fiber ribbon cable provided by the invention, with the outer nylon sheath, ants can not bite the sheath, so that the damages on the optical cable by ant biting in a pipe at an area with a serious anti problem are prevented, the normal state of the cable is ensured, and the application region of the cable is extended. The cable based on a simple and reasonable structure has advantages of small cable diameter, high fiber density, large fiber capacity, and low duty ratio and can be laid in a pipe conveniently; and the bending performance is good. During branched connection, 4 to 24 fibers can be melted once, so that the construction time is saved and the manpower cost is lowered, and the construction efficiency is improved. On the basis of the full drying type dielectric structure, branched connection is realized conveniently and usage becomes convenient.

The utility model discloses a permanent and temporary combined assembly type underground structure plate wall connecting node which comprises an assembly type underground diaphragm wall, a full-length steel plate is installed on the side wall of the assembly type underground diaphragm wall, and a prefabricated structure plate is hoisted on the full-length steel plate. The gap between the prefabricated structural slab and the fabricated underground diaphragm wall is filled with ultra-high-performance concrete, and a steel bar structure is arranged in the ultra-high-performance concrete. According to the utility model, the rigid connection between the two prefabricated parts is realized, the integrity of the structure is improved, and the safety and durability of the underground structure are fully ensured; an underground diaphragm wall which is usually used as a temporary structure is changed into a permanent structure, so that the construction period is shortened, and the investment is saved; the ultra-high performance concrete poured in the joint can greatly shorten the anchoring length of the steel bars, enlarge the arrangement distance of the steel bars, obviously reduce the using amount of the steel bars on site and the binding workload, is convenient to install and simple in process, obviously improves the construction efficiency, and has high popularization and application value.

The utility model discloses a steel box girder fine positioning node which comprises a first positioning piece arranged on the right side of the top face of a lower bottom plate of a first steel box girder in the width direction of the steel box girder, a plurality of second positioning pieces parallel to the first positioning piece are arranged on the right side of the first positioning piece, and the second positioning pieces are provided with guide grooves perpendicular to the lower bottom plate of the first steel box girder. The third positioning piece extends in the length direction of the steel box girder and is arranged on the left side of the top face of a lower bottom plate of the second steel box girder, an inverted-Y-shaped bayonet with the depth matched with the height of the first positioning piece is formed in the lower portion of the third positioning piece, and the distance between the inverted-Y-shaped bayonet and the left end face of the second steel box girder is matched with the distance between the first positioning piece and the right end face of the first steel box girder; the height of the first positioning piece is smaller than that of the third positioning piece, and the height of the third positioning piece is smaller than or equal to that of the second positioning piece. According to the utility model, the steel box girder can be accurately positioned, and the assembly efficiency of the steel box girder bridge is improved.

The high-strength three-way welding connection structure for the hydrogen conveying pipeline belongs to the field of three-way welding and comprises a base, two sliding grooves are formed in the upper surface of the base, first motors are fixed to the left side and the right side of the base correspondingly, and output shafts of the first motors penetrate into the sliding grooves and are fixedly connected with first screw rods; vertical frames are in threaded connection with the outer surfaces of the first screws, second motors are fixed to the opposite sides of the two vertical frames, and the opposite ends of output shafts of the two second motors penetrate to the opposite sides of the two vertical frames correspondingly. Supporting is provided from the inner wall of the three-way pipe through the supporting rollers, the transverse pipe positioning mechanism applies clamping force from the outer wall through the clamping blocks, a double-positioning structure of inner supporting and outer clamping is formed, it is ensured that three ports of the three-way pipe are strictly coaxial, and welding deflection is avoided; the clamping force can be automatically adjusted according to the small difference of the pipe diameters of the three-way pipes, the three-way pipes of different specifications can be rapidly matched through linear driving of the sliding frame and the air cylinder, and the universality is remarkably improved.

This application provides a method, system, medium, and equipment for detecting thermal hazards in tunnels, relating to the field of tunnel safety detection. The method includes: acquiring geological feature data of the target tunnel; identifying a group of thermal hazard parameters with a correlation greater than a set threshold; setting a quantitative scoring range based on this; using the analytic hierarchy process (AHP) to assign weights and calculate hazard scores; then, combining relevant data to establish a dataset and training a lightweight gradient boosting model; finally, inputting data from an unexcavated tunnel section into the model to output the thermal hazard level. This application, by acquiring geological feature data, can accurately understand the environment, screen key parameters to eliminate redundancy, quantify parameters, and rationally allocate weights to ensure objective and accurate scores. It enables tunnel thermal hazard detection and early warning, providing guidance for prevention and control, reducing impact, and is of great significance to tunnel engineering.

This invention provides an intelligent vibration temperature control device for concrete pouring in hydraulic engineering, relating to the field of vibration equipment technology. It includes a main vibrating rod, a lower connecting support rod, an external temperature control hose, and a temperature control storage tank. The lower connecting support rod and the external temperature control hose are arranged in a ring array on the outer side of the main vibrating rod. The external temperature control hose and the temperature control storage tank are interconnected. The tail end of the lower connecting support rod is rotatably connected to a middle connecting rod, and the tail end of the middle connecting rod is rotatably connected to the head end of an upper connecting support rod. The middle connecting rod, the upper connecting support rod, and the lower connecting support rod together form a V-shaped linkage mechanism and are arranged in a ring array outside the main vibrating rod. The external temperature control hose maintains a V-shaped bend simultaneously. The external temperature control hose extends and moves away from the main vibrating rod, expanding the temperature control influence range and improving temperature control efficiency. This solves the problem that the fixed, close-fitting temperature control pipeline for vibration can only cool a very small area of ​​concrete in the center of the vibrating rod, resulting in a small temperature control influence range.

This utility model discloses a prefabricated reinforced concrete frame structure with steel component connections, belonging to the field of prefabricated building construction technology. Addressing the problems of cumbersome formwork support in traditional cast-in-place frames and the unreliability and partial need for formwork support in existing prefabricated joint connections, this structure includes precast columns, precast main beams with or without corbels, precast secondary beams, composite ribbed composite slabs, and column-to-column connection embedded parts. Rigid beam-column connections are achieved through T-shaped steel corbels, channel steel corbels, steel embedded parts components, and rebar bolt connectors. Grouting sleeves of the column-to-column connection embedded parts connect the longitudinal reinforcement of the upper and lower columns. Steel clips on the composite ribbed composite slabs are engaged and positioned with the main beams, and the precast layer serves as the bottom formwork. This structure achieves a completely support-free and formwork-free process, continuous force transmission at joints, strong seismic resistance, factory prefabrication ensuring quality, high on-site assembly efficiency, reduced construction waste, adaptability to multiple scenarios, and ease of modification. It is suitable for frame buildings such as residential and office buildings.

This utility model discloses a wall frame structure for preventing cracks and leakage, belonging to the technical field of wall frame technology. It includes a casting slab, a reinforcing plate, a positioning structure, a feeding structure, casting holes, transverse reinforcing bars, longitudinal reinforcing bars, a main forming plate, and a secondary forming plate. The reinforcing plate abuts against the casting slab. The casting hole is located on the casting slab. The positioning structure is set on the casting slab. The transverse reinforcing bars are placed within the casting slab through the casting hole. The longitudinal reinforcing bars are placed within the casting hole and abut against the transverse reinforcing bars. The feeding structure is located on the reinforcing plate and is used to feed material into the casting hole. The main forming plate abuts against the side of the casting slab away from the reinforcing plate, and the secondary forming plate abuts against the side of the reinforcing plate away from the casting slab. This utility model, by forming a single frame with the reinforcing plate and casting slab, ensures uniform internal stress during use, greatly enhancing the overall structural strength and effectively improving the wall's resistance to cracks and leakage.

The application relates to the field of assembly building technology and discloses an assembled sound insulation and shock absorption laminated floor slab, which comprises a pouring plate, the outer part of the pouring plate is provided with a cladding structure, the cladding structure comprises a main frame, a side stop, an upper stop rod and a connecting groove, the two upper stop rods are fixedly installed on the side stop, the upper stop rod can be detachably connected with the main frame and forms a box body structure to cladding the pouring plate, a connecting groove is arranged on one side of the main frame, and a protrusion is fixedly arranged on the other side of the main frame; and a cushion block assembly, the pouring plate is assembled with the main frame, the side stop and the upper stop rod at a construction site after being prefabricated in a factory, the modular design makes the components separable for transportation, the size and weight of a transportation unit are greatly reduced, the transportation cost and hoisting difficulty are reduced, the on-site assembly is flexible, the size deviation of the actual installation position can be fine-tuned, and the adaptability is high.

A panel pouring slip form construction method, comprising the following steps: 1) bottom mold installation; 2) concrete pouring; 3) traction motor traction slip form panel; 4) the first pouring block is vibrated and troweled; 5) traction mold advances, forming a secondary pouring area; 6) repeating steps 2) to 5), completing the secondary pouring operation; 7) repeating steps 2) to 6), completing the slope protection slip form pouring construction. The application adopts the above method, which can solve the problems of poor stability of the slip form, influence of the concrete floating force on the construction and complicated control of the traction mechanism control system in the prior art, and realizes more convenient and stable panel pouring slip form construction.

The application discloses a large-span steel structure and a metal roof integrated construction method thereof, and mainly comprises the following steps: (1) arranging assembling jigs and fulcrums at boundary positions on an assembling operation surface according to the construction partition, design boundary and assembling requirement of the large-span steel structure; (2) completing the assembling construction of the large-span steel structure on the assembling jigs; (3) reserving part of the assembling jig fulcrums near the original support boundary of the large-span steel structure and unloading the rest of the assembling jig fulcrums; (4) completing the metal roof system installation operation on the unloaded steel structure; (5) installing corresponding lifting or hoisting construction measures; (6) integrally lifting or hoisting and positioning; (7) fixing the large-span steel structure and the metal roof on a supporting structure; and (8) integrally unloading and completing the construction. The application solves the defects of the existing steel structure and metal roof integrated construction, can avoid the excessive deformation of the metal roof in the integrated construction process, is safe and controllable, and significantly improves the construction quality.

The utility model discloses a simple rubber waterstop connecting structure which comprises a connecting structure body used for being connected to the combination portion of a first waterstop plate and a second waterstop plate, and the connecting structure body comprises a supporting table arranged at the connecting end of the first waterstop plate in an extending mode; the lapping plate is arranged at the connecting end of the second water stop plate in an extending manner, is connected to the upper part of the supporting table and is used for connecting the first water stop plate and the second water stop plate into a whole; the connecting piece is connected to the connecting end of the first water stop plate and the connecting end of the second water stop plate and used for stably connecting the first water stop plate and the second water stop plate together. The rubber waterstop is simple in structure and novel and reasonable in design, the two adjacent rubber waterstops are tightly connected, the problems that after the rubber waterstops are installed, the joint portion possibly falls off, sealing is not tight and the like can be effectively prevented, meanwhile, the connecting pieces can ensure that the joint portion is tightly attached to the surrounding area, a good sealing effect is achieved, and the service life of the rubber waterstops is prolonged. And moisture permeation is effectively prevented.

The utility model discloses a turn buckle rapid tensioning structure which comprises a pulling plate, an adjusting hole is formed in the middle of the pulling plate, a sleeve is arranged at each of the two ends of the pulling plate, the turn buckle rapid tensioning structure further comprises an adjusting screw rod, the adjusting screw rod penetrates through the sleeves and extends into the adjusting hole, and an adjusting nut is installed at the end, extending into the adjusting hole, of the adjusting screw rod. The sleeve structure is adopted, the adjusting nut is installed at the end, penetrating through the sleeve and extending into the adjusting hole, of the adjusting screw rod, and the adjusting screw rod is in non-threaded connection with the sleeve. The electric wrench socket head which is well adaptive to an electric tool is adopted to rotate the adjusting nut so as to adjust the tensioning force, manpower consumption is greatly reduced, and the construction efficiency is improved.

A road concrete formwork installation structure is disclosed. This relates to the field of road concrete pouring. Existing road concrete formwork uses a bolt assembly structure. When installing a large number of formwork units, this structure not only leads to bolt loosening but also increases the construction period. Therefore, this invention provides a road concrete formwork installation structure. This invention includes a clamping mechanism. Two adjacent formwork units are connected by the clamping mechanism, which works in conjunction with an insert post. The clamping mechanism and the insert post are connected by an insertion clamping method. The clamping mechanism includes a clamping plate, a handle, and locking holes. Two locking holes are provided on the clamping mechanism, which are inserted into the insert post. The top surface of the locking hole is flat, and the bottom surface is arc-shaped. A groove matching the clamping mechanism is provided near the center of the insert post. The clamping mechanism locks two adjacent formwork units together. This invention is applied to the field of road concrete formwork installation.

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.

The utility model relates to the field of building construction safety, more particularly to a kind of anti-collision guardrail concrete pouring anti-falling device, it includes a baffle, second baffle and two side baffles;Two side baffles are relatively parallel, the first side of two side baffles is respectively connected the two sides of first baffle parallel, the second side of two side baffles is respectively connected the two sides of second baffle parallel, first baffle, second baffle and two side baffles jointly enclose concrete flow guide cavity, by the utility model, solve in the concrete anti-collision guardrail construction process, concrete spilling, material waste and the problem of potential safety hazard.

The application provides a reliability analysis method for positioning accuracy of a shield tool changing robot, realizes sensitivity analysis of error parameters by constructing a kinematic model and an error proxy model, and accurately evaluates the failure probability of positioning accuracy. The assembly and machining errors are comprehensively considered, the error parameters are treated as random variables, the accuracy and efficiency of the analysis are improved. The mean and standard deviation of the random variable are used for sensitivity calculation, and a failure calculation method of positioning accuracy sensitivity is obtained, which provides an important basis for optimization design. The application not only helps to reduce the tool changing time, improve the construction efficiency and reduce the safety risk, but also provides an accurate and reliable tool changing robot manufacturing scheme for designers. The method has universality and flexibility, and can be widely applied to performance improvement and fault prevention of the shield tool changing robot. The implementation of the application will promote the development of shield construction technology and provide strong support for industrial automation and efficient production.

The utility model discloses a telescopic folding climbing ladder and tool of small trolley, related to building construction technical field, including bottom frame and work panel, bottom frame one end is equipped with walking wheel, and the both ends of bottom frame are hinged with the both ends of work panel respectively and are equipped with first telescopic ladder and second telescopic ladder, and the upper end of first telescopic ladder has the U -shaped piece of hinged work panel and supports work panel, and the inner side of lower end of first telescopic ladder is equipped with the cross brace of blocking work panel, the utility model discloses effectively unifies ladder and handcart, realizes double function, and effectively improves construction efficiency, through rotating folding, work panel can be used as climbing support, and also can be used as handcart storage rack, adopts telescopic ladder, and is favorable to building high -altitude construction operation, and expands the applicability.

This application relates to the field of precast box girder steel mesh assembly technology, and in particular to a vision-guided flexible assembly method and system for precast box girder steel mesh. The system includes an image acquisition module, a path planning module, an assembly execution module, and a detection feedback module. It acquires steel mesh image data in real time through a vision sensor, combines it with a collaborative robot to complete precise assembly, and then detects and adjusts the assembly results. This application can solve the problems of low automation, high mechanical operation difficulty, and low construction efficiency in traditional steel mesh processing and assembly, significantly improving assembly accuracy and efficiency, optimizing the longitudinal reinforcement insertion and top slab steel reinforcement skeleton forming processes, and achieving efficient and flexible production.

This invention discloses a rail steel transport device, including a fixed ring and a transport vehicle. A connecting ring is movably installed at the top of the fixed ring, and the connecting ring is connected to the transport vehicle through a connector. A telescopic rod is provided on the fixed ring, which is used to achieve docking assembly between adjacent fixed rings. The telescopic rod is equipped with a first screw for locking the telescopic stroke. Movable arms are hinged to both sides of the fixed ring, and clamping arms are hinged to the lower ends of the movable arms. The clamping arms are hinged to each other in pairs, so that the hinge points of the movable arms and clamping arms form a rhomboid structure. The clamping arms are designed with an L-shaped structure. The fixed ring, movable arms, and clamping arms cooperate to form a single clamping structure. This invention uses a double-clamping structure at both ends of the rail steel, combined with a telescopic rod to form an integrated limiting frame. During lifting operations, both ends of the rail are simultaneously stressed, improving the problem of steel body tilting and dragging wear caused by uneven load distribution in traditional single-point fixing.

This utility model relates to a cross-arranged hybrid metastructure sound barrier structure, comprising a perforated panel (1), a metastructure module (2), and an assembly base (3) arranged sequentially. The perforated panel (1) includes a cross-arranged large-aperture panel (11) and a small-aperture panel (12). The metastructure module (2) includes a cross-arranged metastructure cotton module (21) and a low-frequency module (22). The assembly base (3) includes a cross-arranged metastructure cotton fixing base (31) and a low-frequency module fixing base (32). Compared with the prior art, this utility model uses lightweight composite acoustic metastructure materials and combines a hybrid design of irregularly shaped perforated panels, metastructure modules, and an assembly base to achieve wideband sound absorption and sound insulation, significantly improving noise control capabilities. At the same time, modular assembly helps reduce overall costs and is suitable for noise reduction needs in scenarios such as rail transit and elevated bridges.

The utility model discloses a kind of steel pipe pile supporting structures, mainly include side slope, concrete layer, two pipe pile row groups and protective layer, the water surface of side slope and backwater surface are supported and reinforced by pipe pile row group, and prevent direct impact of water flow, simultaneously, by protective structure and concrete layer on the bottom and both sides waist surface of side slope are covered and protected, further improve the stability of side slope structure, and prevent soil layer from being impacted by water flow, thereby the overall of supporting structure is relatively stable, not easy to be affected by water flow, and the laying equipment of steel pipe pile is relatively mature, operation is relatively simple, without more artificial simultaneously, to improve the efficiency of construction.

The application relates to the field of building construction and discloses a BIM-based outer wall building node optimization and node one-time forming method, which comprises the following steps: step one: creating a main structure model based on two-dimensional structure diagram information; step two: determining structure node numbers and large sample diagram information according to floor structure plan view node annotations; step three: creating a structure node model through a structure node size large sample diagram; step four: creating a building node model according to building plan view corresponding part building node numbers and large sample diagram information; step five: analyzing the structure and construction difficulty of the building node, and confirming whether to optimize the structure node to be constructed with the main body at one time; and step six: outputting a building node optimization information table. The application mainly solves the construction difficulty of a building node in a narrow space, guarantees the safety of construction personnel, improves project construction efficiency, and controls construction cost.

This utility model discloses an integrated transition yaw connection system for wind turbines, belonging to the technical field of wind power generation equipment. The system includes a wind turbine tower, a slewing bearing, a short-section cylinder, and a lower platform. The wind turbine tower has a truss-type hollow structure. The short-section cylinder is vertically arranged and its top is welded to the lower platform as a whole. Its bottom is connected to the top of the tower through the slewing bearing. This utility model uses a hierarchical structure of truss tower-slewing bearing-short-section cylinder-platform. It utilizes the short-section cylinder to distribute the nacelle load and compensate for installation errors. Combined with the slewing bearing, it achieves low-friction and stable yaw. This structure effectively solves the problems of heavy self-weight, obvious yaw vibration, complex assembly, and easy wear of connection parts of traditional wind turbine towers. It has the advantages of lightweight, stable yaw, convenient installation, and long service life.

The utility model discloses a modular fast assembly heating and ventilation pipeline connecting structure which comprises a first pipeline supporting assembly and a second pipeline supporting assembly which are symmetrically arranged, and the first pipeline supporting assembly is detachably connected with the second pipeline supporting assembly through a connecting plate. The first fixing ring and the second fixing ring of the pipeline supporting ring which are symmetrically designed and a butterfly nut locking structure are adopted, welding or complex tools are not needed, rapid mounting and dismounting of the heating and ventilation pipeline can be achieved, the construction efficiency is greatly improved, and the pipeline supporting ring is particularly suitable for occasions needing frequent adjustment or maintenance. According to the pipeline supporting ring, the first fixing ring and the second fixing ring which are symmetrically designed and a butterfly nut locking structure are adopted, welding or complex tools are not needed, rapid mounting and dismounting of a heating and ventilation pipeline can be achieved, construction efficiency is greatly improved, and the pipeline supporting ring is particularly suitable for occasions needing frequent adjustment or maintenance.

The utility model discloses a rerailing bridge rescue device which comprises a motor vehicle, a rerailing bridge, a rotating assembly, a lifting assembly, a transverse moving oil cylinder and a jack. The rotating assembly is arranged on a motor vehicle and used for driving the re-railing bridge to rotate so that the re-railing bridge can be perpendicular to a rail. The lifting assembly is arranged on the rotating assembly, and the lifting assembly is used for driving the re-railing bridge to descend so that the re-railing bridge can fall onto a rail; the transverse moving oil cylinder is placed on the re-railing bridge and used for bearing the rail car. The rerailing bridge has the advantages that the rerailing bridge is installed on the motor vehicle in advance, the rerailing bridge can quickly reach a derailing site by means of maneuverability of the motor vehicle, extra hoisting equipment for transportation is not needed, construction efficiency is improved, and the rerailing bridge can be installed on the motor vehicle in advance and can quickly reach the derailing site by means of the maneuverability of the motor vehicle. And the construction cost is reduced.

The utility model provides a kind of big section equal strength pull rod and support assembly, comprising: first pull rod body;Wherein, first pull rod body middle part is outwardly provided with connecting column, connecting column is opened with a passageway along the axial direction of the first pull rod body, to be used to wear other components;The both ends of first pull rod body are respectively provided with first fastener, to be used to with the corresponding component on the structure to be supported detachably connected.The utility model provides big section equal strength pull rod, by outwardly provided connecting column in first pull rod body middle part, and passageway is opened in the axial direction in connecting column, can be connected with other components and wear, to enhance the overall stability of structure.In addition, the first fastener of first pull rod body both ends allows to carry out detachably connected with the corresponding component on the structure to be supported, significantly improves installation efficiency and construction convenience, can meet the prerequisite of high-strength bearing demand, effectively reduces on-site welding workload, reduces construction difficulty, shortens engineering cycle.

The invention discloses a micro-vibration control construction process for a grating vibration isolation foundation, and relates to the technical field of building construction. Comprising the following steps: S1, measuring and positioning: measuring and releasing sideline control piles of each shock insulation pier and a sand-gravel cushion layer; s2, construction of a graded gravel cushion layer; s3, compaction coefficient detection; s4, paying-off is conducted on the bottoms of the shock insulation piers, wherein the sideline control point of each shock insulation pier is measured and paid off; s5, side formwork installation and steel bar binding, wherein the distance between the vibration isolation pier and the equipment walkway foundation is 10 cm, a foam polyethylene plate with the thickness of 10 cm is adopted as the side formwork, and the side formwork and the steel bars are installed, bound and formed together; s6, mass concrete pouring and temperature control, wherein layered pushing type continuous pouring is adopted, and the thickness of each layer does not exceed 50 cm; s7, concrete curing; and S8, buffer seam treatment. The compaction graded gravel cushion layer is arranged as a vibration isolation filtering layer, and the large-scale independent vibration isolation pier body is combined, so that double isolation of earthquake dynamic response and environmental vibration is effectively realized, and stable operation of a precise instrument is ensured.