2280 results about "Mesh reinforcement" patented technology

The invention discloses a mass concrete composite anti-crack structure and a crack control construction method based on the mass concrete composite anti-crack structure. The composite anti-crack structure comprises a core common concrete layer, an outer side anti-crack concrete layer, a reinforcing mesh arranged between the core common concrete layer and the outer side anti-crack concrete layer, and a top anti-crack concrete layer. The method comprises the steps that firstly, the thickness of side face anti-crack concrete and the thickness of top face anti-crack concrete needing to be poured are calculated according to cracking risk assessment, the side face anti-crack concrete is poured firstly, then core common concrete is poured, and it is ensured that the pouring height of the side face concrete is always 20-30 cm higher than the core common concrete; and then the top surface is completely constructed by adopting anti-crack concrete. The reinforcing mesh subjected to special treatment is adopted, so that the overall stress of the composite structure is uniform, the overall anti-cracking performance and durability of the composite structure are improved through the outer side anti-cracking concrete, the construction technology is simple, meanwhile, a large amount of construction cost and operation and maintenance cost can be saved, and the composite structure is suitable for application and popularization.

The invention provides a reinforcing mesh multi-welding-spot quality detection method and system based on infrared thermal imaging. Wherein for each crossed steel bar welding spot, the fusion form of the crossed steel bar welding spot is identified based on the thermal radiation image; based on the fusion forms of all the crossed steel bar welding spots, quality detection results of the multiple welding spots of the steel bar mesh are generated, and the quality detection results comprise geometric judgment results used for representing whether the fusion forms meet preset form requirements or not; and according to the quality detection result, a corresponding early warning mode is adopted for self-adaptive early warning, and welding parameters adopted by the next electric resistance welding process are adjusted according to early warning information. According to the technical scheme provided by the invention, millisecond-level multi-welding-spot synchronous quality detection and process closed-loop optimization are realized, and the production yield and the process adaptability of the large reinforcing mesh are greatly improved.

Disclosed in the present invention are a prefabricated composite floor slab and steel bar truss floor deck directly utilizing old slabs, and a method. The prefabricated composite floor slab comprises new concrete, old concrete slabs, a slab bottom reinforcing mesh, a slab surface reinforcing mesh, steel bar trusses, steel dowel bars, and post-cast concrete. The steel bar truss floor deck comprises new concrete, old concrete slabs, a steel base plate, a slab surface reinforcing mesh, steel bar trusses, steel dowel bars, and support steel bars. According to the present invention, the old concrete slabs are directly utilized instead of being crushed into recycled blocks or recycled aggregates for reuse, thereby greatly simplifying processing procedures, significantly increasing the recycling rate of old concrete, and significantly reducing the usage amounts of new concrete and corresponding cement, thus achieving a significant carbon emission reduction effect; through holes are vertically drilled in the old concrete slabs, the steel dowel bars are inserted into the through holes, gaps between the steel dowel bars and the through holes are then filled with a high-strength grouting material, and shear resistance members are arranged on the side edges of the old concrete slats to enhance the shear resistance at the interface between the new concrete and the old concrete.

A reinforcing mesh quality inspection device and quality inspection method. The reinforcing mesh quality inspection method comprises: when a gantry (1) is controlled to translate, a first measurement member (11) and a second measurement member (12) scan transverse bars (10) of a reinforcing mesh, so as to acquire the positions of the transverse bars (10); when a measurement assembly (2) translates, a third measurement member (21) scans longitudinal bars (20) of the reinforcing mesh, so as to acquire the positions of the longitudinal bars (20); on the basis of the positions of the transverse bars (10) and the positions of the longitudinal bars (20) acquired by the first measurement member (11), the second measurement member (12), and the third measurement member (21), determining whether distances between the transverse bars (10), distances between the longitudinal bars (20), and extension lengths of the transverse bars (10) and the longitudinal bars (20) relative to the reinforcing mesh are qualified, and whether a diagonal size of the reinforcing mesh is qualified; and, by means of a weld spot detection module (3), determining whether weld spots between the transverse bars (10) and the longitudinal bars (20) are qualified, thus further determining whether the welding quality of the reinforcing mesh reaches the standard.

The invention belongs to the technical field of building robots, and particularly discloses a self-propelled reinforcing steel bar binding robot moving chassis and method, the moving chassis comprises a cross-layer inverted-T-shaped rack assembly, an environment sensing and automatic control assembly is arranged at the top end of the cross-layer inverted-T-shaped rack assembly, and a step-by-step lifting transverse propelling assembly is arranged at the bottom end of the cross-layer inverted-T-shaped rack assembly; self-adaptive high-position longitudinal moving assemblies connected with the cross-layer inverted-T-shaped rack assembly are arranged on the two sides of the environment sensing and automatic control assembly at intervals. Two pairs of driven double-hub wheel assemblies connected with the cross-layer inverted-T-shaped rack assembly are arranged on the two sides of the step-by-step lifting transverse propelling assembly in a clearance mode. The mobile chassis of the self-propelled reinforcing steel bar binding robot can automatically and stably walk on complex reinforcing steel bar mesh surfaces with different sizes and specifications, so that the construction efficiency of reinforcing steel bar binding operation is greatly improved, and the construction period is remarkably shortened.

The invention discloses a ganged brick wall construction method. The ganged brick wall construction method comprises the following steps that firstly, construction preparation is conducted; 2, anti-overturning design and brick arrangement deepening of outer wall bricks are carried out; step 3, treating a base layer; step 4, surveying and setting out; 5, bricks are arranged at the bottom; sixthly, vertical penetrating reinforcing steel bars are constructed; seventhly, ganged bricks are built, specifically, corners are coiled firstly, then a story pole is erected, and then double-face hanging line building is conducted; eighthly, horizontal and transverse tie bars are constructed; 9, vertical through hole grouting is conducted, specifically, every eight layers of bricks are built, grouting materials are adopted to conduct grouting on the through holes penetrating through the reinforcing steel bars; tenthly, pointing and cleaning protection are conducted; and step 11, brushing an organic silicon coating. According to the method, the vertical reinforcing steel bars, the transverse reinforcing steel bar meshes, the main body structure tie steel bars and the like are fixed to the main body structure, a stable keel stress and anti-seismic system is formed, the ganged brick wall body and the main body structure are effectively tied, and the stability of the wall body is guaranteed.

The invention discloses a prefabricated box girder reinforcement cage forming method suitable for factory manufacturing, which is characterized in that a box girder reinforcement cage obtained by assembling an existing closed hoop is improved into a structure of a bottom web double-U mesh and a top plate double-layer mesh according to a'double-U + top plate 'forming and assembling thought; each type of reinforcing mesh can be automatically produced by bending, binding and welding equipment at the same time, the mesh is moved to a reinforcing steel bar framework assembling area through a special lifting appliance to form a box girder reinforcing steel bar framework, and meanwhile prestressed pipeline strand penetrating installation is carried out. The construction quality problems of strand pulling displacement, deformation damage and the like of the prestressed pipeline are solved, the subsequent prestressed tension safety quality is guaranteed, and the service life of the prefabricated PC box girder is prolonged.

The automatic production equipment for the U-shaped reinforcing mesh in the box girder comprises a straightening structure, a bending structure and a welding assembly, the straightening structure is arranged on the upstream portion of the bending structure, and the welding assembly is arranged on the downstream portion of the bending structure; the reinforcing steel bars sequentially pass through the straightening structures, the bending structures and the welding assemblies to form an inner U-shaped reinforcing steel bar net. Steel bars are automatically produced to form inner U-shaped steel bars, then the inner U-shaped steel bars are in lap joint with longitudinal steel bars conveyed in the limiting holes, a plurality of lap joint welding spots are welded and fixed through the first welding gun and the second welding gun, the inner U-shaped steel bar mesh with the stable structure is formed, automatic control is achieved in the whole process, and the production efficiency is high; meanwhile, manual intervention is avoided, and the formed inner U-shaped reinforcing mesh is good in consistency, high in strength and suitable for continuous large-scale production.

The present invention discloses a steel bar bending machine for inserting steel mesh, including a frame, on which a grasping mechanism, an oblique insertion clamping mechanism and a bending mechanism are fixedly installed, the angle between the grasping mechanism and the oblique insertion clamping mechanism is 45°, and the angle between the grasping mechanism and the bending mechanism is 90°. The grasping mechanism can clamp the steel bar using a frame-type electromagnet, and pull the steel bar to a preset position by its own movement; the oblique insertion clamping mechanism has a large rigidity, and can extend into the steel mesh in a 45° direction, so that the steel bar enters the clamping groove, ensuring that the main body does not rotate with the bending of the steel bar during the bending process; the bending mechanism can move perpendicular to the insertion direction of the steel bar, and the steel bar is bent using a fourth drive motor and gears. The present invention can automatically grasp and drag the steel bar, ensuring that the elbow at one end of the steel bar that has been bent is close to the steel mesh; the steel bar is bent using a reduction motor and a gear combination, which is easy to control, more accurate, and safer.

The invention discloses a pipe gallery concrete lining vibration quality monitoring method and system, and relates to the technical field of pipe gallery concrete lining construction monitoring, and the method comprises the steps: arranging a three-way vibration sensor network at a lining reinforcing mesh key node according to a pipe gallery structure cross-section diagram; acquiring original data of the three-way vibration sensor in real time, and preprocessing the original data to generate standardized vibration characteristic data; based on power spectrum density analysis, establishing a correlation model of the vibration characteristic data and vibration energy so as to calculate the vibration energy value of each area in the vibration process; according to a concrete mix proportion and a vibrator frequency parameter, establishing an association relationship among vibration energy, compactness and a bubble rate so as to calculate the compactness and the bubble rate; and comparing the calculated values of the compactness and the bubble rate with respective set reference values, triggering a dynamic regulation and control mechanism according to a comparison result, and generating a vibration quality report. And the efficiency and reliability of pipe gallery concrete construction are effectively improved.

A pier column reinforcing and reinforcing structure comprises tensioning steel plate strips, prestressed tendons, steel bar grids, micro-expansion concrete and a steel casing, the tensioning steel plate strips comprise steel plate strips and a plurality of steel cushion blocks arranged on the steel plate strips, the multiple tensioning steel plate strips surround the outer surface of a pier column to be reinforced in parallel, the tops of the steel cushion blocks are in a concave shape, and the steel cushion blocks are arranged on the steel plate strips. The prestressed tendons are tensioned on the peripheries of the tensioning steel plate strips in a surrounding mode and are positioned through concave faces at the tops of the tensioning steel plate strips, each tensioning steel plate strip corresponds to one prestressed tendon, the steel bar grid is arranged on the peripheries of the prestressed tendons and wraps the prestressed tendons, the tensioning steel plate strips and the pier column to be reinforced, and the steel casing is arranged on the peripheries of the steel bar grid and wraps the prestressed tendons, the tensioning steel plate strips and the pier column to be reinforced. And the micro-expansion concrete is filled between the steel casing and the pier column to be reinforced. Axial constraint is provided through combination of an active mode and a passive mode, the bearing capacity and the bending resistance of an original bridge pier column are greatly improved, and the bridge pier column is environmentally friendly, economical, high in space utilization rate and good in reinforcing effect.

The invention provides a construction method of a CRTS III type slab ballastless track, and relates to the technical field of high-speed rail construction, and the construction method comprises the following steps: mounting base plate steel bars, side forms, end templates and limiting groove templates, placing foam plates at expansion joints, and reserving track slab pressing and anchoring holes; base plate concrete is poured, and base plate concrete formwork removal, surface finishing, maintenance and expansion joint construction are carried out after pouring; constructing a geotextile isolation layer and an elastic cushion layer; limiting groove steel bars and self-compacting concrete layer steel bar meshes are installed, and track plates are placed; before and after the track plate and the base plate are fastened by the pressing device, the track plate is finely adjusted by the fine adjustment device; and a self-compacting concrete formwork is installed, self-compacting concrete is poured, and post-pouring treatment and curing are conducted. The track plate and the base plate are fastened through the pressing device, so that the track plate, the base plate and the self-compacting concrete layer are tightly attached in the self-compacting concrete pouring period, and the situation that reworking or track laying is difficult due to the fact that the floating amount of the track plate is too large is avoided.

The invention belongs to the technical field of tunnel supporting, and discloses a supporting structure of a long-distance deeply-buried TBM inclined shaft water-rich complex rock stratum and a working method.The supporting structure comprises graded yielding control anchor rods, anchor cables, a steel bar row, a steel bar net and a sprayed concrete layer, and the steel bar row, the steel bar net and the sprayed concrete layer are sequentially arranged on the tunnel surrounding rock surface from outside to inside; the graded yielding control anchor rod comprises a rod body, an outer ring, a yielding sleeve and an inner ring. In an initial state, the rear end of the rod body presses the inner ring on the rear port of the inner cavity of the yielding sleeve through a nut; the front end of the yielding sleeve extends into the drill hole and tightly presses the outer ring on the surrounding rock on the outer side of the drill hole; primary yielding friction fit is formed between the inner ring and an inner cavity of the yielding sleeve; and the front end of the yielding sleeve is in secondary yielding friction fit with the outer ring. The method has the advantages that the bearing capacity of the surrounding rock is fully exerted, and passive support is converted into active support; the graded yielding control anchor rods and the anchor cables are jointly supported, and the supporting structure is good in integrity and high in strength.

The invention discloses an integral mounting method for a bearing platform reinforcing steel bar component, which comprises the following steps: S1, straightening pile head reinforcing steel bars, and binding a bearing platform foundation reinforcing steel bar mesh on a bearing platform concrete cushion layer; s2, three-dimensional scanning measurement is conducted on pile head steel bars and a bearing platform concrete cushion layer, a pile head steel bar and bearing platform bottom layer steel bar model is established according to the measurement result of the bearing platform bottom layer steel bar model, optimization arrangement is conducted on bearing platform bottom layer steel bars, and a steel bar non-equidistant distribution construction drawing of a bearing platform bottom layer steel bar mesh is obtained; s3, according to the steel bar unequal-distance distribution construction drawing, a bearing platform steel bar component is manufactured; s4, the bearing platform reinforcing steel bar component is hoisted and lowered to the bearing platform foundation reinforcing steel bar net; s5, a pouring formwork is installed, and pier body reserved longitudinal bars and stirrups are bound in a scattered mode; and finally, bearing platform concrete is poured and maintained. The constraint problem of the pile head steel bars on the pier site is considered, the distance between the steel bars of the bearing platform is adjustable and controllable, the concrete protection layer of the bearing platform meets the requirement, and the construction quality and effect of the bearing platform are effectively improved.

The utility model provides a split mounting type ALC partition wall board which comprises a bearing board, the bearing board comprises a three-dimensional steel bar net rack and a concrete layer covering the three-dimensional steel bar net rack, a plurality of first strip-shaped grooves and first strip-shaped protrusions which are arranged in parallel at intervals are arranged on the two sides of the bearing board, and a plurality of second threaded sleeves are arranged on the two sides of the bearing board; the bearing plate is used as a main body structure, the three-dimensional steel frame net rack is embedded into the bearing plate, and the bearing plate can bear the load; during manufacturing, the threaded sleeve structure is embedded, and the threaded sleeve structure is connected with a steel bar net rack and can be used for being fixedly connected with an adjacent structure.

The invention provides a soft rock roadway bottom plate reinforcing method. The soft rock roadway bottom plate reinforcing method comprises the following steps that S1, a bottom plate of a roadway is trimmed; s2, a reinforcing mesh is laid on the first concrete layer; anchor rods and / or anchor cables are driven to the bottom plate at intervals on the first net layer in the extending direction of the roadway; s3, grouting is conducted in the holes where the anchor rods and / or the anchor cables are located so that anchoring and fixing can be achieved; then, grouting is conducted on the first net layer; s4, a reinforcing mesh is laid on the second concrete layer, then grouting is conducted on the second mesh layer, a third concrete layer is formed through solidification, and the part, facing the second mesh layer, of the third concrete layer is of a downwards-protruding arch structure; by means of the method, the bottom plate of the roadway is stabilized and reinforced, the supporting and reinforcing strength of the bottom plate is higher, the three concrete layers have certain elastic deformation capacity, damage, cracks and failure caused by damage to the surface of the bottom plate of the roadway are avoided, and long-term stable work of the roadway is guaranteed.

The utility model relates to an assembly type enclosure pier, which belongs to the technical field of power transmission line engineering and comprises a splicing pier body sleeved on an electric pole, the splicing pier body comprises two half pier bodies which are detachably spliced with each other, and reinforcing meshes are arranged in the half pier bodies; mounting grooves are formed in the two ends of each half pier body, the mounting grooves of the two half pier bodies are mutually spliced to form a clamping groove, a steel plate is clamped in the clamping groove, and the steel plate is detachably connected with the two half pier bodies through a plurality of connecting pieces. Only simple assembly is needed on site, the construction efficiency can be greatly improved, the environmental pollution can be reduced, and the construction quality can be well controlled.

The invention discloses a fabricated thermal insulation composite external wall panel, a preparation device and a preparation method thereof, and belongs to the technical field of composite wall panels. The fabricated thermal insulation composite external wall panel comprises a thermal insulation board, a reinforcing mesh is arranged outside the thermal insulation board and comprises a bottom mesh, a top mesh and a side mesh, the bottom mesh is located below the thermal insulation board, the top mesh is located above the thermal insulation board, the top mesh and the bottom mesh are fixedly connected through the side mesh, and the thermal insulation board is located in the reinforcing mesh defined by the bottom mesh, the side mesh and the top mesh; and a mortar layer is arranged outside the reinforcing mesh, convex blocks are arranged on one side of the mortar layer in the length direction and the width direction of the wallboard, and grooves matched with the convex blocks are formed in the other side of the mortar layer. By the adoption of the assembly type heat preservation composite external wall panel, the preparation device and the preparation method, the problems that an existing heat preservation composite external wall panel is heavy in weight, and a heat preservation layer is prone to damage can be solved, and the forming effect and the structural stability of the wall panel are improved through the preparation device and the preparation method.

The invention relates to a foam concrete light-weight embankment capable of alternately maintaining traffic by lifting a longitudinal slope during reconstruction and expansion of a road, which adopts foam concrete to construct and expand the embankment and to lift the embankment by the longitudinal slope, so that the dead weight of the embankment is reduced, the settlement amount of a new roadbed is reduced, the differential settlement between the new roadbed and the old roadbed is reduced, and the later maintenance cost is reduced; during foam concrete construction, a plurality of reinforcing mesh anchoring measures are set layer by layer, so that the stability of the reinforcing meshes in the foam concrete pouring process is improved, and the construction quality of the light embankment is further improved; the new roadbed and the old roadbed are anchored through the reinforcing mesh hanging type supports, the Z-shaped supports and the claw-shaped supports, and the integrity between the original roadbed and the widened longitudinal slope lifting embankment is improved.

The invention provides a stirrup pull-in type reinforcing mesh device and a manufacturing method thereof. The stirrup pull-in type reinforcing mesh device comprises a lifting platform, a sliding traction device arranged at the downstream of the lifting platform, a welding device arranged at the downstream of the traction device, a longitudinal bar distributing device arranged at the downstream of the welding device, a movable mesh pulling device arranged at the bottom of the longitudinal bar distributing device, and a bending device arranged at the downstream of the mesh pulling device. And a stirrup distributing device is arranged on one side of the lifting platform. The net pulling device, the traction device and the material distributing device move in a reciprocating mode, the position of the welding device is fixed, the whole net piece bending does not occupy key procedures, placing, positioning, welding and moving of longitudinal bars and stirrups can be carried out at the same time, the production efficiency is further improved, assembly line procedures are coherent, the production cost is greatly reduced, and the large popularization value is achieved.

The invention belongs to the technical field of concrete prefabricated parts, and relates to an autoclaved aerated concrete composite thermal insulation wallboard and a manufacturing process thereof. The autoclaved aerated concrete composite thermal insulation wallboard is of a three-layer composite structure and comprises autoclaved aerated concrete layers on the two sides and a phenolic aldehyde board arranged between the autoclaved aerated concrete layers on the two sides. The manufacturing process comprises the following steps: carrying out high-temperature steam curing on the phenolic aldehyde plate in advance through a still kettle, then obliquely inserting and fixing the phenolic aldehyde plate by using a reinforcing mesh (the area of the reinforcing mesh is larger than that of the phenolic aldehyde plate), sinking into a mold filled with slurry for pre-curing, cutting after the composite thermal insulation wallboard is preliminarily formed, punching two sides of the wallboard, and then putting into the still kettle for autoclaved curing, thereby obtaining the composite thermal insulation wallboard. According to the manufacturing process, the phenolic aldehyde board is effectively prevented from being separated from the autoclaved aerated concrete layer, cracks are effectively prevented from occurring at the edge intersection position of the autoclaved aerated concrete and the phenolic aldehyde board, the percent of pass of the wallboard is increased, the service life of the wallboard is prolonged, and the autoclaved aerated concrete composite wallboard has wide market prospects.

The invention relates to a manufacturing method of an autoclaved aerated concrete plate with a cavity, and belongs to the field of building plate manufacturing, the manufacturing method comprises the following steps: S1, fixing an inflation hose filled with air on a reinforcing mesh; s2, the steel bar mesh fixed with the inflation hose is put into a mold frame, and autoclaved aerated concrete plate slurry is poured; s3, standing and aerating the slurry to form a blank body, and cutting the blank body; s4, the inflation hose is deflated, the deflated inflation hose is taken out of the blank body, and a cavity is formed; and S5, feeding the ligand with the cavity into a steam curing kettle for high-temperature steam curing. According to the invention, the cavity can be kept clean, the damage of the plate caused by the expansion of the meltable material is avoided, the inflation hose can be repeatedly used, and the cost is reduced.

The application discloses a cast-in-situ concrete slope protection plate construction process, which comprises the following steps: measuring and lofting, determining the total construction range of the cast-in-situ concrete slope protection plate; extending and excavating a groove downward along the slope surface at the slope foot of the total construction range of the cast-in-situ concrete slope protection plate; leveling and tamping the slope surface in the total construction range of the cast-in-situ concrete slope protection plate; dividing the construction range of each cast-in-situ concrete slope protection plate on the slope surface; supporting the formwork of the cast-in-situ concrete slope protection plate on the slope surface; fixing the pre-bundled steel mesh of the cast-in-situ concrete slope protection plate, pouring concrete, ironing the concrete surface, and removing the formwork; supporting the formwork of the cast-in-situ concrete slope protection plate of the later-poured cast-in-situ concrete slope protection plate beside the previously-poured cast-in-situ concrete slope protection plate; fixing the steel mesh, pouring concrete, ironing the concrete surface, and removing the formwork. The application can avoid the seepage and overflow of concrete slurry along the bottom of the U-shaped structure formed by the formwork of the cast-in-situ concrete slope protection plate, reduces the waste of concrete, and facilitates the ironing of the concrete surface.

The invention discloses a trapezoidal sleeper track integrated construction method, and relates to the technical field of track construction, the method comprises the following steps: assembling a steel rail, a fastener and a trapezoidal sleeper into a track panel to be treated according to the length requirement of the track panel, and binding a track bed reinforcing mesh; a to-be-processed rail row is placed above the elastic vibration reduction parts of the trapezoidal sleepers, the prefabricated base sleepers are placed below the trapezoidal sleepers, the trapezoidal sleepers and the prefabricated base sleepers are fixed through angle steel or bolts to form an assembly structure, and the assembly structure and a ballast bed reinforcing mesh are bound and connected to obtain a to-be-processed device; and after the to-be-machined device is conveyed to the laying position of the construction working face, ballast bed pouring treatment and ballast bed formwork removal treatment are conducted, and construction is completed. The prefabricated foundation sleeper structure is introduced between the ballast bed and the trapezoidal sleeper, the prefabricated foundation sleeper and the ballast bed are bound through the reserved steel bars, the trapezoidal sleeper is directly arranged on the prefabricated foundation sleeper and does not need to participate in the ballast bed pouring process, the construction efficiency can be improved, and it is guaranteed that the damping effect of the trapezoidal sleeper is effectively exerted.

The invention relates to the technical field of building construction, in particular to a building machine wall-attached support accurate pre-embedding construction method which comprises the steps that a theoretical position point set of a wall-attached support embedded part and an actual structure point set of a bound reinforcing mesh are obtained, and space coordinate system alignment is conducted; constructing a spatial distance field of the theoretical position point set and the actual structural point set, obtaining an adjustment strategy of the theoretical position points of the wall-attached support embedded part according to the spatial distance field, and solving a collision-free adjustment path of the adjustment strategy to adjust the theoretical position points having position conflicts with the actual structural point set; and the deviation condition of the theoretical position point in the pouring process is detected, and adjustment is conducted. According to the method, through systematic steps and innovative technologies, precise pre-embedding construction of the wall-attached support is achieved, the construction precision and efficiency are remarkably improved, the safety of the construction process is enhanced, a good foundation is laid for subsequent engineering implementation, and a reference mode is provided for future building construction.

The invention relates to a construction method of a lock chamber deep foundation pit, which adopts a waterproof steel frame pressing and fixing mode and a bottom drainage channel centralized pumping drainage mode, can efficiently centralize and guide water in the foundation pit to be drained, and improves the drainage reliability and efficiency. The problem that the excavation face of the foundation pit is softened and disintegrated when encountering water is effectively solved, and it is guaranteed that the excavation face is stable and water is discharged in time; the movable protection platform is adopted, effective safety protection can be provided in the blasting operation process, the safety of constructors is improved, and risks in the construction process are reduced; by adopting the reinforcing mesh integral channel steel pressing and fixing connection structure, the rock slope can be effectively supported and reinforced, the stability of the slope is improved, and in addition, the integral connection mode is also beneficial to improving the construction efficiency and quality.

The invention discloses a networking system of aerated plate reinforcing mesh cages, and belongs to the technical field of aerated plate production. Comprising an automatic plastic clip mounting unit, a steel chisel transfer unit and a mesh clamping unit, the automatic plastic clamp mounting unit is used for achieving automatic assembly of plastic clamps and steel chisels, the steel chisel transferring unit is used for transporting the steel chisels, and the mesh clamping unit is used for clamping meshes to the plastic clamps. Full-automatic production of the plastic clamps, the steel chisels and the meshes from transportation to mesh arrangement to a to-be-welded state can be achieved, and the production efficiency of the reinforcing mesh cage is greatly improved.

The invention relates to the technical field of cast-in-place pile construction, in particular to a pile head breaking device and method based on the vacuum negative pressure principle of a cast-in-place bored pile. The pile head breaking device comprises a foundation, a pile casing is arranged in an inner cavity of the foundation, concrete grout is poured in an inner cavity of the pile casing, reinforcing steel bars are inserted in an inner cavity of the concrete grout, and a forming assembly is arranged in the inner cavity of the pile casing; concrete can be compacted while the vibrator vibrates through the forming assembly, the compaction strength can be adjusted according to needs, meanwhile, the concrete between a reinforcing mesh sleeve and a pile casing can be compacted, rapid forming of a cast-in-place pile is improved, whether the equipment is perpendicular to the cast-in-place pile or not can be detected through the supporting assembly, and the equipment is convenient to use. And meanwhile, the equipment can be adjusted on the inclined ground, so that the equipment and the cast-in-place pile are kept perpendicular in the compaction process, the stress of concrete is uniform in the compaction process, and the overall strength and stability of the cast-in-place pile are guaranteed.

The invention belongs to the technical field of mining construction, and particularly relates to an artificial roof structure and a construction process thereof. The construction process comprises the steps that S1, anchor rod holes are constructed in the positions, 1 m away from a bottom plate, of two sides of a stope, S2, ore cushion layers with the thickness of 200 mm are laid and leveled, S3, I-shaped steel bottom beams are erected and fixed through round steel anchoring parts and welding base plates, S4, a reinforcing mesh is laid, main ribs and auxiliary ribs are bound in a crossed mode and welded to anchor rods, according to the composite structure design of the double-layer reinforcing mesh, the steel wire mesh and the hanging bar system, a three-dimensional stress system is formed, the bending resistance and the shearing resistance of the false roof are remarkably improved, the problem that a traditional false roof is prone to cracking and sinking is solved, and the false roof has the advantages of being simple in structure, convenient to use, economical and practical. Due to the layered matching design of the full-tailing cemented filling body, the bearing strength is guaranteed, seamless roof contact is achieved, the risk of roof hollowing is reduced, the pressure of stope operation circulation is relieved, the ore removal efficiency is improved, and the mining cost is reduced.

The invention discloses railway large box girder mesh processing equipment and a method thereof, and belongs to the technical field of building construction reinforcing meshes, the railway large box girder mesh processing equipment comprises a rack, and further comprises a preorder control device, a postorder control device and a bottom table device, the preorder control device comprises a first X-axis linear module, a first Y-axis linear module and a first Z-axis linear module, and the first X-axis linear module is connected with the first Y-axis linear module; the first X-axis linear modules are double-rotor sliding table modules, the two first X-axis linear modules are fixedly installed on the left side of the rack, the first Y-axis linear modules are fixedly installed between rotors of the two first X-axis linear modules, the first Z-axis linear modules are fixedly installed at the output ends of the first Y-axis linear modules, and the first Z-axis linear modules are fixedly installed at the output ends of the first Z-axis linear modules. And an electric welding gun is fixedly mounted at the output end of the first Z-axis linear module. By means of the mode, continuous automatic welding and splicing and multi-point simultaneous welding of the reinforcing mesh can be achieved, the manufacturing efficiency of the reinforcing mesh is improved, and manpower input is reduced.