231 results about "Mesh reinforcement" patented technology

The present application belongs to the field of coal mine roadway construction, and particularly relates to a method for self-forming a roadway by top cutting at a negative angle. The method comprises the following steps: drilling a field in front of a working face and close to a right side of a mining roadway; drilling anchor holes and top cutting holes along a strike and staggered construction, and installing grouting anchor cables in the field; cutting the basic roof and the immediate roof at a negative angle through the top cutting holes at the back of the working face, constructing a roadway-side gangue retaining structure, grouting through the grouting anchor cables and anchoring the grouting anchor cables on the roadway-side gangue retaining structure; and monitoring the deformation of the steel mesh at the grouting anchor cable and adjusting through a nut. The present application can ensure that the construction position of the roadway-side gangue retaining structure does not affect the width of the self-supporting roadway and the integrity of the roof by constructing a field of a certain width in advance. The negative angle top cutting holes can cut a section that is deviated to the direction of the goaf, so that the gangue formed by the collapse of the immediate roof moves to the direction of the goaf and does not move to the mining roadway in large quantities, thereby ensuring the safety of the construction in the mining roadway.

The application provides a large-space variable house type steel structure residence and a design method thereof, and relates to the technical field of steel structure residence design, and specifically comprises mutually connected column bodies and floors, the column body is sequentially provided with a concrete core, a rectangular steel pipe column and a first reinforced concrete cladding layer from inside to outside; the first reinforced concrete cladding layer comprises a steel mesh layer; the floor is sequentially provided with a top reinforced concrete layer, a middle layer and a bottom reinforced concrete layer from top to bottom; the middle layer is uniformly provided with a combined rib beam, a hollow square box and a floor rib beam; the combined rib beam is used for connecting the floor and the column body; a plurality of floor rib beams are vertically arranged to form a grid structure; the grid structure is symmetrically arranged on both sides of the combined rib beam; and the hollow square box is arranged in a grid hole of the grid structure. The scheme can provide a large-space beamless and columnless space, improve the use area in the suite, and be suitable for the dynamic change requirement of a family structure.

The utility model belongs to prefabricated slab manufacturing technical field, concretely is a kind of concrete prefabricated slab containing sandwich thermal insulation layer, including thermal insulation board, the upper and lower of thermal insulation board is respectively provided with the reinforcing mesh surface being formed by transverse reinforcement and longitudinal reinforcement, tightening structure, the reinforcing mesh surface of the upper and lower sides of thermal insulation board is respectively acted with the both ends of tightening structure, in the thermal insulation layer of inside being provided with wave structure, can reduce the use of concrete, reduce the mass of prefabricated slab, to facilitate handling assembly, simultaneously under the self performance of thermal insulation layer, can improve the thermal insulation effect of prefabricated slab, in the process of buckling, can guarantee the form of reinforcing mesh surface, and the opposite pull of both sides, can reduce the concrete layer of forming to fall off, better guarantee the quality of the prefabricated slab of forming.

The utility model provides a kind of sandwich waterproof thermal insulation structure of outdoor stair, not only ensure the continuity of outdoor stair insulation layer and waterproof layer laying, effectively protect the working performance of structure layer, also improve construction efficiency, avoid the construction cycle extension problem possibly caused by complex due to height difference change. The leveling layer is fixed on the upper surface of roof panel, and the stair surface layer plate is fixed on the upper surface of stair tread plate;The waterproof layer and the insulation layer are arranged between the leveling layer and the stair tread plate, the waterproof layer is fixed on the upper surface of the leveling layer, the insulation layer is fixed on the upper surface of the waterproof layer, and the stair tread plate is fixed on the upper surface of the insulation layer;It further includes vertical planting, vertical planting is sequentially implanted roof panel, leveling layer, waterproof layer, insulation layer and stair tread plate;Longitudinal reinforcement is embedded in the insulation layer, and the longitudinal reinforcement is fixed with the vertical planting in the insulation layer;Bidirectional steel mesh is embedded in the stair tread plate, and the bidirectional steel mesh is fixed with the vertical planting in the stair tread plate.

The application discloses a bridge deep pile foundation construction method, and relates to the technical field of bridge engineering, which comprises the following steps of outer protection cylinder installation, construction environment cleaning, pile hole excavation, hole cleaning, inner protection cylinder installation, outer ring steel mesh installation, concrete protection wall pouring, inner protection cylinder pulling out, ring inner steel reinforcement cage installation, ring inner concrete pouring, concrete curing and outer protection cylinder pulling out. The application optimizes the construction process, effectively guarantees the hole forming quality, optimizes the concrete pouring process, effectively prevents quality defects such as broken piles, mud inclusion and segregation, guarantees the construction quality of the pile foundation, improves the overall performance of the pile body, solves the problems that the traditional deep pile foundation construction is prone to hole collapse under complex geological conditions and the concrete pouring quality is difficult to control, and meets the increasing demand of current bridge construction for high-reliability deep foundation.

The utility model discloses a kind of open cut tunnel reinforcing mesh combination support device, including base, support rod, connecting piece and fixed claw.Support rod is connected with base, connecting piece is installed in the top of support rod, the height of connecting piece is adjusted by the telescopic of support rod.Fixed claw is connected with connecting piece, the angle of fixed claw is adjusted by the swing of connecting piece, and fixed claw is used to hold fixed reinforcing mesh.The above-mentioned open cut tunnel reinforcing mesh combination support device, the height of connecting piece is adjusted by the telescopic of telescopic link, the angle of fixed claw is adjusted by the angle of connecting piece, and supporting height and angle can be flexibly adjusted.It can be enhanced the anti-overturning ability of support device by the base of larger area bearing on ground, ensure the stability of support device.The whole device structure is modularized, and component versatility is strong, can be disassembled and reused, save construction cost, and installation is convenient and fast.

The application provides a welding device for foundation pit enclosure construction, and relates to the technical field of foundation pit reinforcing mesh welding. The welding device comprises a welding clamping piece, and a welding part is installed on the welding clamping piece. The welding part is used for improving the lap joint precision of reinforcing bar heads. A vertical reinforcing bar limiting piece is installed on the welding part. The vertical reinforcing bar limiting piece is used for limiting the spacing between vertical reinforcing bars. A folding prevention supporting piece is installed on the welding clamping piece. A lower weld joint protection piece is installed on the welding part. A welding guide is installed on the welding clamping piece and the welding part. The welding device can be used for clamping the reinforcing bar heads of horizontal reinforcing bars first, and then performing forward and reverse double-sided welding, so as to solve the problem that the existing welding device for foundation pit enclosure construction is inconvenient for workers to clamp the reinforcing bar heads of horizontal reinforcing bars first, and then perform forward and reverse double-sided welding.

The present application relates to the technical field of filling mining, in particular to a kind of underground bag type filling retaining wall structure and construction technology, the upper layer access is arranged above the lower layer access, the access axis of the upper layer access and the lower layer access is perpendicular;The fixed hook is arranged in the top of access;The top edge and side edge of the filling cloth bag are all provided with suspension fixing hole, the filling cloth bag is hung on the fixed hook;The filling pipe main pipe and filling pipe auxiliary pipe are all arranged in the top of access;The access mouth reinforcement net is arranged in the access mouth position of access;The access interior reinforcement net is arranged in the interior of access;The access filter pipe is arranged in the middle position of the bottom and both sides of access;The access water guide pipe is arranged in the middle position of the bottom, top and both sides of access;The observation top connection pipe and the access exhaust pipe are all arranged in the top of access.The present application significantly improves the safety and overall efficiency of mine filling construction.

The utility model discloses an asymmetric non -middle wall connected arch tunnel support system relates to tunnel support technical field, including connected arch tunnel first -pass hole initial support, connected arch tunnel first -pass hole initial support includes I20a type steel arch frame, inside phi 8 steel bar net, outside phi 8 steel bar net, steel arch frame connecting reinforcing steel bar, big arch foot reinforcing cage, big arch foot steel arch frame triangle bracing structure, big arch foot steel arch frame connecting steel sheet and stiffened steel plate, through the first -pass hole initial support of setting, first -pass hole initial support adopts I20a type steel arch frame, inside phi 8 steel bar net, outside phi 8 steel bar net, steel arch frame connecting reinforcing steel bar, big arch foot reinforcing cage, big arch foot steel arch frame triangle bracing structure, connecting steel plate and stiffened steel plate, form high -strength, high rigid support system, effectively disperses the surrounding rock pressure, reduces local damage, and system anchor rod and radial injection grouting small catheter consolidate surrounding rock through injection grouting, further enhances the stability of surrounding rock.

The application discloses a modular manhole cover based on waste recycling, which comprises a waste reinforcement mesh frame, a waste cover plate arranged on the upper part of the waste reinforcement mesh frame, a reflective warning layer arranged on the upper surface of the waste cover plate, waste rubber arranged on the outer periphery of the waste cover plate and the waste reinforcement mesh frame, a waste reinforcement handle arranged on the waste cover plate, a waste reinforcement hook arranged on the lower part of the waste reinforcement mesh frame, and a waste counterweight barrel hung on the waste reinforcement hook. The application has the advantages that the comprehensive utilization rate of waste is greater than or equal to 90%, construction waste is reduced, the modular design is convenient to assemble and disassemble, the size is flexible, the cover can be used for the protection of manholes with different sizes, the multiple protection mechanism is wind-resistant and stable, the waste on a construction site is utilized, material cost is saved, the maintenance cost is very low, the waste cover can be replaced locally when a wood plate or a rubber strip is damaged, the waste cover does not need to be scrapped as a whole, and the waste cover can be recycled repeatedly.

The application discloses a dismounting hole excavation supporting construction method, and particularly relates to the technical field of TBM dismounting hole construction, and comprises the following steps: step one, dismounting hole excavation preparation; step two, adopting the drill-and-wedge method to preliminarily excavate the dismounting hole; step three, adopting the bench method to excavate and construct; step four, performing construction monitoring in the dismounting hole excavation process; step five, adopting the drill-and-wedge method to excavate and construct at a non-explosive dismounting hole excavation position; and step six, reinforcing mesh construction and shotcrete supporting. The drill-and-wedge method is used to excavate hard rocks and rock strata, and the rock excavation is fast, and the method is particularly suitable for large-scale excavation projects, improves the dismounting hole excavation construction efficiency, and after the drill-and-wedge method is used to complete the preliminary excavation of the dismounting hole, the bench method is used, so that the construction efficiency is ensured and the safety of subsequent construction is ensured. The bench method can reduce the risk of rock collapse and collapse due to the adoption of the step-by-step excavation mode, and improves the construction safety.

The application relates to the technical field of architectural design, in particular to a metal texture slope roof suitable for tropical storm and typhoon areas, which comprises, from bottom to top, a reinforced concrete roof panel, a mortar layer, a three-layer waterproof layer, an isolation layer, a concrete protective layer and a silver gray paint layer; the three-layer waterproof layer comprises a polyurethane waterproof paint layer, an elastomer modified bitumen waterproof roll material and a hard foam polyurethane spraying layer. Reinforced anchor rings, reinforced meshes and cold-drawn steel wire meshes are all arranged in the concrete layer and have no direct contact with the atmosphere, so that corrosion and loss of effectiveness are avoided, and roof corrosion prevention is effectively realized; through the design of the three-layer waterproof layer, waterproof effect is effectively achieved, and heat preservation effect is simultaneously achieved; the metal texture slope roof suitable for tropical storm and typhoon areas is designed in the aspects of material selection, construction technology and combination reliability to adapt to tropical storm and typhoon areas, so that the requirements of roof structure on wind lifting resistance, waterproofness and corrosion resistance are met.

This utility model relates to the field of wall repair technology and discloses a composite fiber mesh reinforcement structure for old walls. It includes a fiberglass mesh, with first spring clips fixedly connected to both ends of a first fixing frame. An aramid fiber mesh is slidably connected to the outer wall of the first fixing frame. Multiple second fixing nails are slidably connected to the inner wall of the wall, and baffles are slidably connected to the outer walls of the second fixing nails. A polyvinyl alcohol fiber mesh is slidably connected to the outer wall of the second fixing frame, with multiple second spring clips fixedly connected to both ends of the second fixing frame. Multiple third spring clips are fixedly connected to the outer wall of the second fixing frame, and a corner fixing component is provided on the outer wall of the fiberglass mesh. In this utility model, the fiberglass mesh, aramid fiber mesh, and polyvinyl alcohol fiber mesh are fixed by multiple first fixing nails, second fixing nails, baffles, channels, first fixing frames, and second fixing frames, achieving the effect of convenient fixing even when concrete penetrates.

The utility model relates to the technical field of concrete prefabricated part, especially to an anti-permeation concrete prefabricated part, which comprises a concrete prefabricated part body, a reinforcing mesh frame is arranged in the concrete prefabricated part body, a heat preservation layer is arranged on the outer side of the concrete prefabricated part body, a waterproof layer is arranged on the outer side of the heat preservation layer, an outer concrete layer is arranged on the outer side of the waterproof layer, an anti-permeation layer is arranged on the outer side of the outer concrete layer, the heat preservation layer is made of thermal insulation cotton material, the waterproof layer is made of waterproof roll material, the outer concrete layer is made of waterproof concrete material, and the shape structure of the concrete prefabricated part body is designed as a cube structure. The waterproof layer, the outer concrete layer and the anti-permeation layer can form a three-layer waterproof structure on the outer side of the concrete prefabricated part body, the possibility of water entering the concrete body is reduced, and thus the anti-permeation property of the whole concrete prefabricated part body is improved.

This utility model discloses a glass fiber mesh reinforcement immersion device. The immersion chamber has a through groove on the inclined surface and a boss at the through groove. A viewing cover is hinged to the boss. The immersion chamber is equipped with a first partition, a second partition, a first steering rod, a second steering rod, a third steering rod, a fourth steering rod, and a fifth steering rod. This utility model has a reasonable structure. First, the reinforcement is immersed twice to ensure the immersion effect. Second, during the first immersion in the reinforcement, glass fiber debris remains in the reinforcement and is trapped in the immersion chamber by the filter screen. The second partition keeps the debris in the immersion chamber near the viewing cover, reducing the debris carrying rate on the surface of the glass fiber mesh and thus improving the quality of the glass fiber mesh. The viewing cover also allows for monitoring of the working status and enables the immersion chamber to be sealed. Compared with an open immersion tank structure, this avoids dust contact with the reinforcement and improves the immersion effect.

The utility model relates to building construction equipment technical field discloses the outer wall lock chain axle, including lock chain axle body, the outside upper and lower sides of lock chain axle body are fixedly connected with fixed limiting board, the inside upper and lower sides of lock chain axle body are fixedly connected with the card slot no.

The application discloses a TBM construction supporting device, which comprises a ring-shaped air bag, which is sleeved on a tunnel boring machine girder and is filled with high-pressure gas; an arc-shaped steel, which is hollow inside and is provided with a spiral steel wire inside; a mechanical hand sequentially pushes a plurality of arc-shaped steels into the gap between the ring-shaped air bag and surrounding rock, so that the plurality of arc-shaped steels are connected with each other to form a ring, and the ring-shaped air bag is moved forward after the installation of the arc-shaped steels; and an arc-shaped steel mesh, which is sequentially pushed by the mechanical hand into the gap between the ring-shaped air bag and surrounding rock and is connected with each other to form a ring after the installation of the arc-shaped steel mesh; wherein a grouting hole is arranged on the arc-shaped steel, and a grouting device grouts the hollow inside of the arc-shaped steel through the grouting hole on the arc-shaped steel, so that the inside of the arc-shaped steel is filled with concrete slurry. The device can conveniently and efficiently support the surrounding rock after tunneling, and the supporting structure is not only high in supporting strength, but also convenient to assemble.

The utility model discloses a portable building construction precision measuring device suitable for narrow space, including vertical rod, the first measuring rod is fixed to vertical rod bottom, and two connecting plates are fixed to vertical rod top end left and right symmetry, and the same handle is fixed to two connecting plate top end. This measuring device simple structure, convenient operation, through the first measuring rod and second measuring rod can be in the narrow space accurate and measured object, utilize the pull rod to drive the tape of tape measure to drive the tape, can conveniently read data from the observation port, solve the tape data reading difficult problem, and the length of vertical rod and connecting rod is adjustable, can adapt to the staff of different height and different measurement scene, and the scope of application is wide, effectively improve the measurement efficiency and accuracy, in the night measurement process, open the light, can to second measuring rod reset and first measuring rod direction illumination, when this device is inserted into the double -layer reinforced mesh through the reinforced mesh square, provide the convenience.

This utility model discloses a formwork sealing structure for post-cast strips in construction, addressing the technical problem of insufficient construction convenience during the construction of post-cast strips in existing technologies. The two side walls of the space to be sealed have roughened surfaces and are reinforced with steel bars. The steel mesh is tied to the straight bars. The main formwork and back formwork are fixed to the walls on both sides of the space to be sealed using expansion bolts, enclosing the space to be poured. A first grouting window is set in the middle of the main formwork, and a second grouting window is set at the top. A first sealing cover plate is placed at the first grouting window, and a second sealing cover plate is placed at the second grouting window. An overflow window is set on the second sealing cover plate. After construction, this technology avoids the formation of tie bolt holes, thus solving the problem of requiring secondary waterproofing treatment at tie bolt holes in traditional construction processes. Furthermore, the construction efficiency and quality are improved through the use of this special formwork and its sealing structure.

The utility model relates to road structure technical field, especially a kind of concrete slab broken stone road structure, including concrete layer, it is characterized by: the broken stone layer is equipped below the concrete layer, the broken stone layer and the concrete layer are jointly equipped with anti-skid waste wood layer between, drainage structure is equipped in the broken stone layer, reinforcing structure is equipped in the concrete layer, the concrete slab broken stone road structure of the application is through multilayer composite design, realizes drainage, bearing and other multifunctional collaborative optimization. Broken stone layer is evenly dispersed load with high dense graded broken stone and enhances roadbed stability;Drainage blind ditch and drainage pipe linkage, helical hole+filter layer quickly guide and drain rainwater groundwater, avoid roadbed disease;Anti-skid waste wood layer increases friction, reduces noise;Embedded steel mesh improves the crack resistance of concrete layer;Waste wood recycling reduces cost and protects the environment, comprehensively improves road durability and safety.

This invention relates to the field of construction inspection technology and discloses a machine vision-based method for inspecting the construction quality of steel mesh. The method includes: acquiring color images and depth maps of the steel mesh; locating adjacent intersection nodes and the mid-span sag points of the connecting lines; extracting depth values ​​and converting them into three-dimensional physical coordinates; setting the intersection nodes as the local coordinate origin; calculating the difference between the horizontal projected straight-line distance and the relative sag depth; using algebraic analytical methods to simultaneously solve for the coefficients of the local parabolic deflection shape; using the arc length integral analytical method based on these coefficients to obtain the true physical arc length of the steel reinforcement; and finally calculating the relative error ratio between the actual arc length and the standard spacing to output the judgment result. This invention effectively eliminates the projection shortening error caused by local steel reinforcement sag, the calculation process requires no iterative optimization, the data logic is strictly self-consistent and closed-loop, and high-precision true spacing detection is achieved.

This utility model discloses a mold for manufacturing composite floor slabs, relating to the technical field of building component production equipment. It includes a base with legs fixed to its upper end. Support plates are connected to the upper ends of the four legs. A forming hole is provided in the middle of the support plate, and a demolding component is provided at the forming hole. A side mold structure is provided above the forming hole. The side mold structure includes first side plates positioned at opposite ends of the forming hole and located above it. A second side plate is positioned between the ends of the two first side plates. Each end of the first side plate has a locking slot, and the ends of the second side plate are respectively engaged inside the two locking slots. In this utility model, the positioning pin cooperates with the positioning hole, and the locking block engages with the locking groove, improving the positioning accuracy and stability of the side mold. The electromagnetic vibrator can compact the concrete, eliminate air bubbles, and facilitate demolding. The hydraulic push rod drives the support plate for convenient demolding. The positioning groove prevents stones from supporting the reinforcing mesh, ensuring the quality of the composite floor slab pouring.

This invention discloses a method for positioning and constructing steel mesh for thin-walled, hollow, multi-curved fair-faced concrete arches. The method involves setting up a support structure composed of beams, columns, and steel beams, and wrapping extruded polystyrene (XPS) boards around the support. The shape of the XPS board is controlled by limiting plates to ensure it matches the inner wall shape of the arch. Using the XPS board as a reference surface, the first layer of steel mesh is positioned and fixed using first and second positioning ribs and spacers, ensuring accurate positioning. Subsequent steel mesh layers are laid using the previous layer as a reference, with the spacing between adjacent layers controlled by welding short steel bars between them, thus achieving accurate positioning. Inspection fixtures are used to check the positioning of the outermost layer of steel mesh, and adjustments are made to the shape of the steel mesh based on the inspection results, ensuring smooth installation of the outer formwork for the subsequent arch casting.

This invention provides an elastic seismic isolation and waterproofing strip for buildings and its construction method. The elastic seismic isolation and waterproofing strip is installed at horizontal isolation joints. Through its elastic deformation under compression, it achieves an elastic connection between the upper and lower structures of the seismic isolation layer, replacing the seismic isolation function of the horizontal isolation joint. The water-swellable material of the elastic seismic isolation and waterproofing strip also provides waterproofing and sealing functions for the isolation joint, thus providing seismic isolation and waterproofing for the building. The construction method includes: installing the embedded plate of the elastic seismic isolation and waterproofing strip after binding the reinforcing mesh on the lower surface of the isolation joint; supporting the formwork on both sides of the embedded plate; pouring concrete into the embedded plate through pre-drilled holes; checking for concrete overflow at the vent holes of the embedded plate during vibration compaction to ensure a dense and void-free structure; installing the elastic seismic isolation and waterproofing strip after solidification; subsequently supporting the upper seismic isolation layer of the horizontal isolation joint and the top formwork of the seismic isolation trench; and pouring concrete to construct the upper structure of the seismic isolation layer. This invention features good seismic isolation and waterproofing effect, convenient construction, and low cost.