28results about How to "Reduce erection" patented technology

The invention discloses a slope ramp hard rock tunnel core soil reserved excavation construction method. The method comprises the following steps that S1, a slope tunnel is divided into N sections in the length direction of the slope tunnel; s2, blasting the tunnel face of the upper step of the first section to reserve hard rock core soil; s2, an upper step is supported; s3, the upper step of the second section continues to be excavated, and meanwhile hard rock core soil is reserved; s4, hard rock core soil and a left middle step are excavated and supported, and a constructor stands on a left lower step for construction operation; s5, excavating a right middle step and supporting; s6, repeating the steps S2-S4 until all the upper steps and the middle steps on the slope tunnel are excavated and supported; s7, a left lower step is excavated and supported; s8, a right lower step is excavated and supported; according to the subway slope section hard rock tunnel construction method, blasting is controlled through shaping, a core rock platform is reserved on an upper platform of a subsurface excavation tunnel, and the problem of a construction operation platform is solved.

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 invention relates to the technical field of transportation, in particular to a hoisting device. The device comprises a supporting frame, a lift car, an electric hoist and a hoisting mechanism. Wherein the supporting frame is slidably arranged in the supporting frame and used for bearing goods; the lifting mechanism is arranged on the top of the supporting frame and used for driving the lift car to slide in the supporting frame in the vertical direction. The electric hoist is arranged on the top of the supporting frame and used for hoisting goods. The lifting device provided by the invention can realize goods loading and unloading and vertical lifting functions, goods can be conveyed to a formulated floor of a construction plant, and the cost of crane renting, manual lifting and material receiving platform erection is saved; according to the device, manual carrying can be reduced, the problems of improper crane selection, unreasonable standing, outward pulling, inclined dragging and the like are avoided, and the hoisting transportation safety risk is greatly reduced; in addition, the device further has the advantages of being simple in structure, convenient to operate, safe, reliable and the like, can be assembled on site and reused, and has the value of innovation, efficiency improvement, popularization and application.

The utility model discloses an underwater single-pile tower crane foundation which comprises a cast-in-place pile (1), the top of the cast-in-place pile (1) is provided with an installation structure (2), the installation structure (2) comprises a pile cap (21) installed on the top of the cast-in-place pile (1), the tower crane foundation (3) is installed on the pile cap (21), the side edge of the cast-in-place pile (1) is provided with a bearing platform (5), and a supporting structure (6) is arranged between the cast-in-place pile (1) and the bearing platform (5). The pile cap (21) is integrally poured on the single cast-in-place pile (1), and the tower crane foundation (3) is fixedly connected to the top of the pile cap (21), so that the investment of drilling equipment and reinforcing steel bar production places can be reduced, the erection of a drilling platform is reduced, the practical quantity of overall materials is reduced, and when the pile cap (21) is higher than the ground, the tower crane foundation (3) is fixedly connected to the top of the pile cap (21). A supporting structure (6) can be additionally arranged between the pile cap (21) and the bearing platform (5) on the side edge and used for auxiliary supporting, and therefore the structure can be more stable.

This utility model provides a pile head reinforcement structure for construction in hard rock formations, including a steel sleeve, a grouting structure disposed between the steel sleeve and the outer surface of the pile head, a shear structure for forming a mechanical interlocking effect between the pile head and the steel sleeve, an anchoring structure for reliable connection with the pile body, a pressure-bearing flange disposed at the bottom of the steel sleeve, and a reinforcing rib structure arranged on the outer wall of the steel sleeve. The steel sleeve is fitted around the periphery of the precast pile head, and the grouting structure fills the space between the inner wall of the steel sleeve and the outer surface of the pile head and is fixed to both. This pile head reinforcement structure for construction in hard rock formations solves the problem that, due to the lack of effective structural reinforcement and circumferential restraint measures for precast pile heads in related technologies, pile heads are prone to spalling, crushing, cracking, and other damage under high loads and impact conditions.

The invention relates to a subway slope section hard rock tunnel core soil reserved excavation construction method which is particularly used for tunnel construction under complex geological conditions. According to the method, the section of a slope section is divided into an upper step, a middle step, a lower step and core soil, and reserved core soil blasting and excavation supporting are sequentially conducted according to the steps. Firstly, reserved excavation of core soil of the upper step is conducted, then excavation of the middle step and the lower step is conducted, and core soil is formed to serve as a working platform. The process comprises the steps of danger elimination, blast hole measurement and lofting, blast hole punching, charging, detonation, supporting and the like. Digital electronic detonators are adopted for phase dislocation delay detonation, low-vibration-velocity control is achieved through technologies such as straight-hole slotting and vibration reduction holes, and core soil is reserved to serve as an operation platform so as to improve construction safety and efficiency. According to the construction method, the high-altitude operation risk is reduced, the support erecting link is reduced, the tunnel supporting progress is accelerated, and the construction method is suitable for hard rock tunnel construction of III-level and IV-level surrounding rocks.

The present invention discloses a prefabricated staircase and a production and construction method thereof, belonging to the field of prefabricated staircases, and the production and construction method comprises the following steps: bottom mold assembly: the bottom mold is assembled into a standard riser height and tread height of a stone material, and the riser height reserves the thickness of the stone material; stone material installation: a waterproof interface agent is applied to the back of the stone material, anchor holes are drilled on the stone material and filled with adhesive in the anchor holes, claw nails are fixed to the anchor holes of the stone material, a filling hole is formed between the claw nails and the back of the stone material, and then the front of the stone material is positioned at the tread and riser positions corresponding to the bottom mold, and the joints that appear are waterproof and sealed; steel cage installation: the steel cage is hoisted onto the bottom mold; side mold assembly; concrete pouring; the prefabricated staircase comprises a staircase body, stone material and a steel cage. The prefabricated staircase and the production and construction method thereof of the present invention enable the stone material to be firmly connected to the staircase body, have good integrity, good waterproofness, strong environmental applicability, are easy to install on site, and have little impact on the installation environment.

This invention belongs to the technical field of fast reactor installation, commissioning, operation, and routine maintenance, specifically relating to a local alarm device for a distributed sodium leak detector. A switch, power supply, alarm light, display screen, buzzer, and resistance display control meter are connected in series between two wires. The power supply and alarm light are grounded. After startup, tweezers at the end of the wires are used to clamp the two metal wires after the ceramic insulated terminal of the sodium leak detector to begin measurement. If a value is displayed, it indicates a short circuit in the sodium leak wire, and the location of the short circuit is determined. This invention quickly locates the fault point of the sodium leak wire, reducing the time and labor required for disassembling insulation during maintenance.

A kind of construction method of super high layer high altitude large-span cantilever concrete structure, including the following steps: step one, the structure optimization and construction drawing design of cantilever concrete structure;Step two, the deepening design of measure support, measure support includes support frame and hanging basket;Step three, main body first construction;Step four, precast concrete beam section field prefabrication;Step five, the manufacture and installation of support frame;Step six: the hoisting of precast concrete beam section;Step seven: the construction of cast-in-place concrete section;Step eight: the installation of upper pull rod and lower support rod;Step nine: in turn remove hanging basket, hanging platform and support frame.The present application solves the technical problems of complex construction technology, long construction period and high construction risk of large-span cantilever structure.

The utility model discloses a pool roof splicing device, the device is the form of prefabricated roof splicing post -poured face layer concrete and connecting node, including UHPC prefabricated roof, anchoring structure and post -poured reinforced concrete structure, and anchoring structure sets up in the end of UHPC prefabricated roof, after roof rests on cast -in -situ pool wall and bottom beam, installs prefabricated roof upper portion double -layer bidirectional steel mesh and anchoring structure and forms the whole, and pours roof filling body, integral concrete face layer and connecting node, so that adjacent roof can be stable splicing together, can carry out modular division to pool roof, is convenient for installation and dismounting. This pool roof splicing device can improve construction efficiency significantly, reduces the formwork support erection of roof structure construction, the workload of dismantling, avoids the safe risk of limited space operation, and the post -poured connecting node of whole hoisting component also has reliable guarantee to construction quality.

The invention discloses a prefabricated animal channel and a construction method. The construction method comprises the following steps of 1, arch rib segment prefabrication, 2, arch support construction, 3, arch rib temporary construction support building, 4, arch rib hoisting and positioning, 5, cast-in-place bridge deck slab construction and 6, bridge deck construction. According to the prefabricated assembly type animal channel, through the prefabricated arch rib sections and assembly type construction, the efficiency is improved, and the environment is fused; uHPC material is used to enhance durability and reduce maintenance; an innovative skewback connecting system ensures accurate anchoring, and the safety of a high-performance pier pile and supporting pile lifting structure is ensured; vegetation soil and vegetation promote ecological fusion, and wild animals are protected; the construction process is optimized through the suspension formwork system and the steel pipe pile supporting technology, and structural stability is guaranteed.

The application discloses an installation construction device for an overhanging support-ribbed slab outer wall ALC strip plate, and belongs to the technical field of building construction. The device comprises an installation plate, a T-shaped rod, a horizontal locking component, a sliding component, a hoisting and pulling component and a plate clamping component. The installation plate is fixed to the inner side of the wall top by expansion screws to form an indoor overhanging-free base body. The T-shaped rod can slide horizontally and is accurately positioned by the locking component. The hoisting and pulling component prevents the steel rope from being pulled out of the groove and stably lifts the plate. The clamping component synchronously clamps the ALC strip plate by means of a gear and a rack. The whole device is placed indoors, and external scaffolding and overhanging equipment are not needed, thereby avoiding the risk of high-altitude operation, improving the installation precision and efficiency, shortening the construction period and reducing the cost, and being suitable for different specifications of ALC strip plates and having high universality.

The utility model relates to a system for cooling and separating oil and water at the top of a tar dehydrating tower. The system comprises a condensing, cooling and separating integrated tower, a separated water delivery pump and a light oil reflux pump, a condensing and cooling section, an oil-water separation section, a light oil intermediate tank and a separated water intermediate tank are sequentially arranged in the tower body of the condensing, cooling and separating integrated tower from top to bottom. The condensing device, the cooling device, the oil-water separation device, the light oil intermediate tank, the separated water intermediate tank and other equipment are integrated in one tower body, so that the occupied area is greatly reduced, the cost is reduced, the equipment layout and operation are more convenient, and the oil-water separation effect is better.

The present invention belongs to the technical field of scaffolding for building construction, and specifically relates to a portal type mobile scaffolding suitable for complex working conditions and an erection method thereof, wherein the portal type mobile scaffolding comprises uprights and horizontal bars, and also comprises a plurality of ear plates and a supporting device matched with the ear plates; the outer sides of the uprights at both ends of the portal type mobile scaffolding in the length direction are fixedly connected with a plurality of ear plates from top to bottom, and the horizontal projection of the ear plates is perpendicular to the length direction of the portal type mobile scaffolding; compared with the prior art, the advantages and positive effects of the present invention are: (1) the safety and adaptability of the portal type mobile scaffolding in complex working conditions are greatly improved; (2) compared with the existing finished product shoring on the market, the cost is saved and better economic benefits are created; (3) the scaffolding occupies a small area, is light overall, is convenient for erection and movement of the frame, and saves labor; (4) has a wider range of applications; (5) can meet the requirements of adjusting the distance of the portal type mobile scaffolding relative to the parapet.

The present invention discloses a fully rigid attached lifting scaffold with a liftable operating protection platform on the top, including an attached lifting scaffold and an operating protection platform liftably installed on the top of the attached lifting scaffold; the attached lifting scaffold includes vertical poles located in the inner row and the outer row respectively; the operating protection platform includes a lifting frame slidingly matched with the two rows of vertical poles respectively, a walkway plate laid on the lifting frame, a vertical frame installed on the lifting frame, and a steel mesh window installed between two adjacent spans of the vertical frames and located on the outside of the vertical frame, and the lifting frame is temporarily installed and fixed to the vertical poles by a latch. The present application is suitable for situations where a climbing frame is used for protection of a building structure with a variable floor height, and its height can be freely adjusted, thereby reducing the erection and dismantling of the climbing frame body during the construction of the climbing frame due to frequent changes in the floor height, avoiding the safety risks of high-altitude erection or dismantling, reducing the labor intensity of manual labor, and saving construction time.

The application discloses a bottom mould floor support plate construction technology suitable for steel-concrete composite beam cast-in-situ bridge deck plate construction and belongs to the field of cast-in-situ concrete component form construction, which can solve the problems of difficult installation of the bottom mould of the steel-concrete composite beam cast-in-situ bridge deck plate, large waste of building materials, cost increase and slow construction period. According to the size of the floor support plate, the application performs line laying at a reinforcing position of the top plate of the steel beam, performs installation and connection, straightens, flattens, connects and fixes the arranged floor support plate. The connection between the floor support plates is reinforced by adding fillet welding. The two sides of the steel-concrete composite beam are each provided with a 70cm cantilever arm, and the concrete thickness is 20cm. The cantilever arm part of the side beam is constructed by using a hanging form method, a steel cantilever beam is arranged on the top of the steel beam to hang up the steel bar truss floor support plate bottom mould. After the floor support plate is paved, the steel bars are bound, and the bridge deck plate is poured. The steel bar truss floor support plate satisfies various loads such as structure and construction, can avoid construction procedures such as formwork erection, formwork removal, support system erection and removal and the like, and improves construction operation efficiency.

The utility model relates to the field of floating crane mounting structures, in particular to a truss type boom carrier roller auxiliary mounting tool which comprises a supporting frame, a carrier roller and a hoop. The whole structure is simple, manufacturing is easy, when the variable-amplitude steel wire rope is installed, the steel wire rope is dragged through the carrier rollers, heaving of the variable-amplitude steel wire rope can be effectively prevented, abrasion of the arm support structure is avoided, erecting of scaffolds is greatly reduced, and the project period is shortened; the supporting frame is installed on the arm frame in a hoop mode, installation is firm, disassembly is convenient, and meanwhile laying of a large number of scaffolds and aloft work can be reduced; according to boom structures of different projects, the boom can be continuously used on all subsequent crane projects after being simply modified, and the practicability is high; the scaffold channel with the width of about 500mm is laid between the carrier rollers, so that constructors can conveniently check the problems of interference, deflection and the like during rope threading.

This application relates to a pile hole protection structure, belonging to the technical field of construction safety. It includes a guardrail, threaded rods, threaded sleeves, and a cover. Multiple guardrails are circumferentially arranged around the pile hole. The threaded rods are located on one side of the guardrail, and the threaded sleeves are rotatably located on the other side of the guardrail. The threaded sleeves are threaded onto the threaded rods of adjacent guardrails. The cover is installed on the guardrail and used to cover the pile hole. This application effectively reduces the workload of erecting and dismantling pile hole protection, and improves the turnover efficiency of pile hole protection.

This invention relates to the field of temporary support construction structures for stiffened beams, specifically a temporary support construction structure for stiffened beams, comprising an integrated support formwork system, a lifting mechanism, and a double-T-shaped support mechanism. The integrated support formwork system includes temporary support uprights and longitudinal and transverse connecting rods. The temporary support uprights are integrally fixed to the scaffolding system via snap-fit ​​fasteners. A liftable lifting mechanism is mounted on the top of each temporary support upright, and the upper end of the lifting mechanism supports the bottom template of the beam. A built-in double-T-shaped support mechanism is mounted inside the bottom template of the beam. This invention, through the integrated formwork system combined with the built-in support structure and the on-site scaffolding as auxiliary support, eliminates the need for custom-made special jigs based on different steel beam heights and spans, saving the traditional process of fabricating, erecting, and reinforcing numerous jigs, significantly reducing the input of temporary turnover materials, and lowering construction costs and material waste.

The utility model relates to road construction surveying technical field discloses a kind of road construction surveying devices, including device pedestal, level gauge body is equipped on device pedestal upper, rotating mechanism is rotatably equipped on device pedestal, adjusting mechanism is equipped on rotating mechanism, rotating mechanism can drive adjusting mechanism and level gauge body rotation, device pedestal bottom is equipped with support rod piece, several device supports are equipped on support rod piece, the beneficial effects compared with prior art of the utility model are as follows: downward pressing device pedestal can make support rod be driven by ground reaction force and move up limit block, a plurality of hinged rods are automatically opened outwards by bracing rod synchronous drive, without manual manual bending support foot;Only need to loosen locking bolt after measurement, spring can push limit block and support rod downward reset, drive device support to automatically fold inwards, overall erection and storage time compared with traditional tripod shorten, substantially improve the measurement operation efficiency of road construction frequent point transfer.

The utility model provides a plate post-cast strip support-free formwork supporting system, which relates to the technical field of post-cast strip formwork supporting and comprises an upper double-rod support and a lower double-rod support, the upper double-rod support and the lower double-rod support are respectively arranged above and below a post-cast strip, a plurality of upper cushion blocks are arranged between the upper double-rod support and the upper end of a plate, and a plurality of lower cushion blocks are arranged between the upper double-rod support and the lower end of the plate. A formwork is arranged at the lower end of the post-cast strip, a plurality of lower cushion blocks are arranged between the lower double-rod support and the lower end of the formwork, and the upper double-rod support and the lower double-rod support are connected through a plurality of water stop screws. According to the utility model, the problem that a secondary frame body needs to be erected during pouring of the plate surface post-cast strip can be solved, and the waste of manpower and materials is reduced.

The utility model relates to a prefabricated non-physicochemical plate side line structure convenient to construct and install, which belongs to the technical field of concrete prefabricated parts and comprises a building part and a prefabricated plate side line, the prefabricated plate side line is composed of a prefabricated steel structure and a concrete structure, and one side of the building part is fixedly connected with a cantilever steel beam. The prefabricated steel structure comprises a steel structure edge beam installed on the cantilever steel beam, and the top of the steel structure edge beam is fixedly connected with edge sealing angle steel. According to the prefabricated non-physicochemical plate side line structure convenient to construct and install, preparation and positioning work of all components of the prefabricated plate side are completed in a processing plant, the on-site installation period can be effectively shortened, high-altitude operation during construction of the prefabricated plate side is reduced, and potential safety hazards are reduced; prefabrication is carried out in a processing factory in advance, so that the construction difficulty is reduced, and the precision of components and embedded parts is guaranteed; in addition, the plate edge steel plates are adopted as concrete formworks, the erecting work amount of the supporting frame and the on-site installation work amount are reduced, and cost is saved.

This invention discloses a method for hoisting and installing steel structure modules, including: modeling the steel structure module; confirming the center of gravity of the steel structure module based on the model; using the top surface of the steel structure module in its vertical position as the hoisting surface, identifying multiple main hoisting points on the hoisting surface based on the center of gravity position; selecting multiple auxiliary hoisting points on the bottom longitudinal beams of the steel structure module in its vertical state; performing on-site assembly; reconfirming the center of gravity position and main hoisting points when the deviation between the assembled frame and the steel structure module exceeds a set value; installing lifting tools at multiple main hoisting points and connecting them to a first crane via lifting ropes; installing lifting tools at multiple auxiliary hoisting points and connecting them to a second crane via lifting ropes; horizontally hoisting the assembled frame, rotating it 90° to bring it into an vertical hoisting state, and then installing the assembled frame onto the target object. This invention reduces high-altitude patching work, reduces the number of modular unit divisions, and accelerates the overall frame installation speed.

The utility model discloses a template structure for side slope pasting slope concrete, including steel template, longitudinal ridge and connecting component, longitudinal ridge is equipped with at least two, sets up in steel template back, and the middle part all has opened longitudinal mounting seam, and the top end and the bottom of longitudinal mounting seam respectively exceed the upper end and the lower end of steel template, every longitudinal ridge all is provided with two connecting components, and two connecting components are used for connecting the top end and the bottom of longitudinal ridge to side slope slope respectively, the tapered sleeve is sleeved on the first screw rod, the top of first screw rod passes through longitudinal mounting seam, and the top end or bottom of longitudinal ridge is pressed down by the pressing part, and the bottom of first screw rod is connected to the pre -buried bar. The utility model can realize the quick establishment of template, avoid the problem of complicated process that needs to erect and dismantle the scaffold in the existing technology, effectively avoid various security risks existing in the erecting and dismantling process of scaffold.

The utility model relates to the technical field of steel bar truss laminated slab, specifically relates to a kind of installation structure of large-span prestressed steel bar truss laminated slab, including laminated slab body, distribution steel bar, installation component, steel bar truss, fixed component and connecting rod;The laminated slab body is set to rectangle, the distribution steel bar is installed on the two side surfaces of laminated slab body, and installation mode is set to welding and riveting, the installation component is installed on the upper surface of laminated slab body, the steel bar truss is installed on the upper surface of installation component, the steel bar truss is provided with 3, and three steel bar trusses are installed in the three-point setting of equilateral triangle, the fixed component is installed between steel bar truss, and installation mode is set to welding, the connecting rod is installed between multiple fixed components.

The invention discloses a small motorized captive balloon body storage device and a use method thereof.According to the device, a balloon body part and an anchoring part are jointly integrated to a transportation unit, and rapid erecting, retracting and storage protection of the anchoring part and the balloon body part are achieved; the problems of rapid unfolding, folding and storage of the balloon body in the rapid erection and folding process of the small captive balloon are solved, meanwhile, the erection and folding process of the captive balloon is optimized, and the cost is reduced.

The invention discloses a rubble concrete retaining wall formwork support which comprises a formwork, an embedded part and a supporting and blocking assembly, and the supporting and blocking assembly abuts against the outer side of the formwork and is combined with the embedded part to abut against the formwork tightly. By the adoption of the unique formwork support, a scaffold does not need to be additionally erected to serve as a construction platform when the formwork support is erected, the high-altitude falling risk can be reduced, the working efficiency can be improved, and meanwhile the problems that according to a traditional rubble concrete retaining wall, rubbles are inconvenient to place and uneven in placement can be solved through the support. The invention further discloses a construction method adopting the rubble concrete retaining wall formwork support.

The utility model provides a tailing pipe monitoring device, which relates to the technical field of tailing pipe monitoring and comprises a plurality of supporting pieces, the plurality of supporting pieces are arranged at equal intervals along the extension direction of a tailing pipe, a supporting piece is arranged at the bending position of the tailing pipe, and at least one image collector is arranged on each supporting piece. The mine tailing pipe image acquisition device can fully cover the mine tailing pipe and perform image acquisition on the mine tailing pipe.