53results about How to "Realize mechanized construction" patented technology

The invention discloses a long screw extrusion-socketed cast-in-place pile construction method based on circulating slurry breast wall, comprising the steps of first, burying a protective barrel and setting a slurry circulating system that comprises a slurry storage tank and a slurry pumping device, with the upper portion of the protective barrel provided with an overflow hole; second, drilling to form a borehole; third, lifting a drill pipe, and casting a slurry breast wall under high pressure: lifting up the drill pipe, and continuously casting wall supporting slurry from bottom to top from the borehole bottom through the drill pipe by using the slurry pumping device; fourth, lowering a reinforcement cage; fifth, casting concrete underwater and recycling the wall supporting slurry, and recycling the wall supporting slurry discharged through the overflow hole to the slurry storage tank for backup. The method has simple steps, is easy to implement, has high hole-forming quality and good construction effect, and enables the construction of a long screw extrusion-socketed cast-in-place pile to be finished simply and quickly, and by casting the wall supporting slurry from bottom to top from the borehole bottom in a high-pressure casting manner, it is possible to effectively protect the wall and keep the borehole bottom clean with no deposit; the wall supporting slurry is reusable.

The invention relates to the technical field of vertical shaft constructing, in particular to a novel vertical shaft heading machine. The novel vertical shaft heading machine comprises a stand column, a cutter disc, a main driving unit, a plurality of stabilizers, a first-layer platform, supporting platforms, a second-layer platform, a third-layer platform, a fourth-layer platform, a boot-supporting advancing unit and a slag discharging unit, wherein the stand column is arranged to be coaxial with a vertical shaft, the vertical shaft is arranged at the lower end of the stand column, the main driving unit is installed between the cutter disc and the stand column, the multiple stabilizers are installed around the lower end of the main driving unit, the first-layer platform is installed above the multiple stabilizers, the supporting platforms are upwards fixedly installed around the stand column in sequence, and the slag discharging unit is perpendicularly installed in the middle of the stand column; and the cutter disc is fixedly connected with the output end of the main driving unit. According to the novel vertical shaft heading machine, through mechanical excavation, disturbance of blasting on the stratum is reduced, meanwhile the mechanical excavation can improve the shaft wall construction quality, and the construction quantities of over-excavation and under-excavation are reduced; construction cost is reduced, devices are highly integrated, and after excavating is conducted, supporting closely follows; and the side gap is small, the shaft wall is supported in time, construction safety can be ensured, and simultaneously the slag discharging unit is designed.

The invention discloses a mounting equipment car. The mounting equipment car consists of power equipment, a chassis, a car body, electric equipment and the like, and is characterized in that a first extension column 6, a second extension column 12, a third extension column 24 and a fourth extension column 43 are correspondingly mounted at the upper sections of inner cavities of stand columns at four corners of a box; the other end of each stand column is connected to the top of the box; the top of the box can be vertically lifted to lift equipment; an extension lifting crane is mounted at thetop in the box; more than one layers of cross beam support structures and drive connecting devices are mounted on the inner and outer sides of a channel between longitudinal components on the two sides of the box to form a rotary recovered movable plane support structure; the equipment can be carried on cross beams; the cross beams can be automatically recovered on the two sides of the box; and the section of the box is n-shaped. The mounting equipment car reduces the equipment mounting construction flow, removes various cranes, vehicles, forklifts and tools in traditional construction, once finishes lifting, transportation and installation on one car, achieves automatic control and precise installation, realizes mechanical equipment installation, and greatly improves the equipment mounting efficiency.

The invention belongs to the field of civil engineering and discloses a light steel-concrete combination structure shear wall and a manufacturing method thereof. The light steel-concrete combination structure shear wall comprises a light-steel structure framework, reinforcing steel bars, cement boards and concrete, wherein the cement boards are used as permanent templates in a construction stage and as member protecting layers in a use stage; the light-steel structure framework is formed by connecting two or more than two cold-formed thin-walled steel or steel trusses together by using connecting pieces and has sufficient rigidity and bearing capacity in the construction stage; and the reinforcing steel bars are fixed on the light-steel structure framework, and a formed combination unit satisfies the stress requirements of the shear wall. The manufacturing method comprises the following steps of: fixing the reinforcing steel bars and the cement boards on both sides of the light-steel structure framework to form a space which satisfies the shape requirements of structural members; and then, pouring concrete. The shear wall can be used for various structural members, has the advantages of high durability and low cost and is suitable for industrial production.

The invention relates to a railway tunnel repairing vehicle unit, and belongs to the technical field of tunnel disease control construction equipment, the vehicle unit comprises a first tractor; a material vehicle connected with the first tractor for placing a material for repairing a railway tunnel; a working vehicle connected with the material vehicle, which comprises a working frame, a workingarm frame arranged on the working frame and a power station for providing power for the working arm frame; a second tractor connected with the working vehicle, wherein first tractor and the second tractor are respectively arranged at the two ends of the railway tunnel repairing vehicle unit, and the traction directions are opposite. According to the invention, various problems of the railway tunnel can be comprehensively repaired, the arrangement is reasonable, the operation functions are diversified, and the reinforcement and renovation of the tunnel section can be efficiently and quickly completed in limited time.

The invention provides plastering-free mechanically-sprayed putty powder, plastering-free mechanically-sprayed putty slurry as well as a preparation method and application thereof. The plastering-freemechanically-sprayed putty powder is prepared from the following components in percentage by weight: 25.0-35.0% of an inorganic cementing material, 35.0-50.0% of aggregate, 10.0-30.0% of a filler, 1.0-3.0% of alkali-resistant additives, 3.0-5.0% of redispersible latex powder, 0.2-0.4% of hydroxypropyl methyl cellulose ether, 0.2-0.3% of anti-cracking fiber, 0.1-0.3% of a thixotropic agent, 0.05-0.15% of a water reducer and 0.01-0.05% of a water-repellent agent. The prepared plastering-free mechanically-sprayed putty has excellent bonding strength, cracking resistance, flexibility, water resistance, alkali resistance, efflorescence resistance and droop resistance, spraying constructability and scraping constructability, so that the construction efficiency is greatly improved, the construction period is shortened, and the labor cost is reduced.

The invention relates to a movable three-arm top-assisting anchor rod and anchor cable construction drill carriage which comprises a caterpillar travelling part, an engine body platform, a base seat, drilling arm parts, hydraulic drill rig devices, an operating system, a pump station part and an electric motor, wherein the hydraulic drill rig devices are arranged on the tops of the drilling arm parts; the operating system, the pump station part, the electric motor and the like are installed at the rear on the engine body platform; the construction drill carriage is characterized in that the construction drill carriage is provided with three sets of independent drilling arm parts and hydraulic drill rig devices which are respectively arranged at the left, the middle and the right of the base and are installed on the base; the base is fixedly arranged on the engine body platform; and the drilling parts and the hydraulic drill rig devices which are arranged at the left and the right sides can slide outwards. The construction drill carriage lightens the labor intensity of constructors, reduces the number of the constructors, improves the advancing speed and the operation efficiency, creates safe operation environment, and has the functions of automatically moving, lifting, double platforms, synchronous construction of top-assisting anchor rod and anchor cable, ultrahigh laneway supporting and protecting, etc.

The invention discloses a supporting device suitable for the side wall of a foundation layer and a construction method. The supporting device comprises vertical column piles embedded under a foundation pit; the tops of the vertical column piles are fixedly connected with vertical columns; a plurality of supporting device bodies are mounted on the vertical columns in the vertical direction; each supporting device body comprises two trays mounted on the adjacent vertical columns; a motor is fixed to every two trays; each motor drives a driving gear to rotate; each driving gear is engaged with two parallelly-arranged supporting arms; each driving gear drives the two corresponding supporting arms to move relatively when rotating; and spherical hinge structures are arranged at the tail ends ofevery two supporting arms so as to adapt to the inclined and uneven side wall of the foundation pit.

The invention discloses an integrated pile cap forming device and a construction method. The integrated pile cap forming device comprises a support, a pile cap forming drill bit installed below the support, a rotation driving device driving the pile cap forming drill bit to continuously rotate, and a lifting device driving the support to vertically move along the center axis of the pile cap forming drill bit. The pile cap forming drill bit is in a cylindrical shape and comprises a hollow sleeve and a spiral blade arranged on the outer side wall of the hollow sleeve from top to bottom. The hollow sleeve is arranged on the support and is in transmission connection with the rotation driving device. The construction method comprises the steps that firstly, the pile cap forming device is installed; secondly, pile body concrete pouring construction is conducted; thirdly, the pile cap forming device conducts downward drilling, and a soil model is formed; fourthly, pile cap concrete pouring construction is conducted; and fifthly, a pile cap is formed. The integrated pile cap forming device and the construction method are reasonable in design, easy and convenient to construct and good in using effect; the pile cap construction process can be synchronously and automatically finished in the pile body construction process, construction is easy, convenient and rapid, the construction process is easy to control, and the quality of the constructed and formed pile cap is high.

The invention provides machine sprayed mortar for a thin plastering system. The mortar comprises the components in percentages by weight: 20-30% of common silicate cement, 58.65-76.11% of 40-120-mesh river sand, 2-8% of filler, 1.83-3.15% of a water-retaining thickening material, 0-0.2% of a thixotropic agent, 0.05-0.15% of a water reducer and 0.01-0.05% of a water repellent, wherein the water-retaining thickening material is prepared by mixing 1.5-2.5% of redispersible latex powder, 0.2-0.4% of hydroxypropyl methyl cellulose, 0.03-0.05% of starch ether and 0.1-0.2% of anti-crack fibers. The components are uniformly mixed in a mixing device, and 18-22% by weight of water is added at a normal temperature and a normal pressure to stir slurry which can be used for mechanical construction of the thin plastering system, so that the construction efficiency is increased, the construction period is shortened, and the labor cost is lowered.

The invention discloses a forming device and a construction process for reverse screw pile, wherein the forming device comprises a drill rod, a grouting equipment connected with external end of the drill rod and an integrated pipe cap forming device sleeved outside the upper part of the drill rod; the reverse screw pile comprises a pile body and pile ca, the outer wall of the pile body is provided with outer thread structure; the drill rod comprises a core rod and outer thread structure of rod body; the integrated pile cap forming device comprises a support, pile cap forming drill head, rotational drive device and lifting device, the pile cap forming drill head comprises a hollow sleeve and spiral blade; the forming construction process comprises steps of: 1, installing pile cap forming device; 2, drilling hole; 3, lifting and conducting synchronous pile body concrete grouting construction; 4, making the pile cap forming device drill to form clay model; 5, grouting construction of pile cap concrete; 6, forming of reverse screw pile. The forming device has reasonable design, simple construction and good effect, thus can finish construction process of pile body and pile cap of reverse screw pile easily and rapidly.

The invention discloses an automatic construction node hinge device suitable for a confined concrete lagging jack. The automatic construction node hinge device comprises a hinge buckle and a hinge groove which are movably connected by virtue of a hinge shaft, wherein the hinge groove is internally hollow, so that the lower end of the hinge buckle is wrapped in the hinge groove; and the lower end of the hinge buckle is provided with a first retainer ring clamping groove, a second retainer ring clamping groove is formed in the corresponding position of the hinge groove, and the hinge buckle and the hinge groove are fixedly buckled. The automatic construction node hinge device is simple in structure and convenient and flexible to install; and the application range is wide, and the node hinge device can be used for different lagging jacks in various shapes, sizes and sectional forms such as a mine U-shaped steel lagging jack, an H-shaped steel lagging jack, and for the confined concrete lagging jacks in various sectional forms and sizes. The node hinge device can be used for connecting nodes of an underground engineering lagging jack and is particularly suitable for connecting confined concrete lagging jacks.

The invention discloses an automatic panel trimming and plastering machine for a full concrete faced rockfill dam concrete panel construction line. The automatic panel trimming and plastering machine comprises a main frame, main frame drive devices, trimming and plastering hangers, trimming and plastering devices and trimming and plastering drive devices. The main frame is installed on the main frame drive devices and can move forwards, backwards, upwards and downwards. The multiple trimming and plastering hangers are installed on the main frame. The trimming and plastering devices comprise trimming and plastering rotary shafts and trimming and plastering tools. The trimming and plastering rotary shafts are installed on the trimming and plastering hangers and driven by the trimming and plastering drive devices to rotate. The multiple trimming and plastering tools used for trimming and plastering the concrete face are installed on the trimming and plastering rotary shafts. By the adoption of the automatic panel trimming and plastering machine for the full concrete faced rockfill dam concrete panel construction line, design is reasonable, full-line mechanical construction performed along a slope upwards of the trimming and plastering process of the rockfill dam panel concrete sliding die release concrete face is achieved, standard and mechanical operation of the whole trimming and plastering process is achieved, and the concrete face trimming and plastering quality and efficiency of the machine are remarkably improved.

The invention discloses a ribbed box-based assembly type wall connecting structure and a construction method thereof. The structure comprises a prefabricated wall plate, wherein a through long longitudinal rib is arranged in the prefabricated wall plate, a ribbed connecting box is embedded at the bottom end of the prefabricated wall plate, the upper end of the longitudinal rib is exposed out of the top end of the prefabricated wall plate, the lower end of the longitudinal rib is fixedly connected with the ribbed connecting box, the ribbed connecting box comprises a ribbed box body and a threaded sleeve, wherein the ribbed box body is pre-buried on the two sides of the bottom end of the prefabricated wall plate, the threaded sleeve is vertically fixed at the top end of the ribbed box body,the lower end of the longitudinal rib in the prefabricated wall plate is fixedly arranged in the threaded sleeve in a penetrating mode, and the upper end of a longitudinal rib of a next layer of prefabricated wall plate extends into a ribbed connecting box of an upper layer of prefabricated wall plate. According to the structure, a vertical anchor rib is connected with the ribbed connecting box torealize assembly connection of upper and lower layer walls and floors, the vertical anchor rib is arranged in the prefabricated wall plate in a through long way, so that a stress of the prefabricatedwall plate can be accurately transmitted to a vertical adjacent wall body, force transmission is clear, the structural stability is good, and the assembling efficiency is high.

The invention discloses an intelligent installing method of an underground engineering standardized assembled confined concrete arching frame. The method comprises the steps of conducting concrete pre-pouring on a single-joint arching frame outside a tunnel, precisely welding an assembled joint with the arching frame for arching frame trial assembling, folding to form an assembled arching frame, using arching installing equipment to erect the arching frame after hoisting the arching frame to a heading face of the tunnel, making the arching frame connected with a longitudinal locating device, using a laser locating instrument and an arching frame lifting device to precisely locate the whole truss of the arching frame, using a laser distance measuring device to conduct fracture surface rechecking, drilling feet-lock bolts, and then executing other work procedures. By means of the intelligent installing method of the underground engineering standardized assembled confined concrete archingframe, a confined concrete arching frame pre-pouring key technology is implemented, suspension and one-time erection of the whole truss of the arching frame are achieved, the construction efficiencyis improved, and the construction safety is guaranteed.

The invention relates to the technical field of concrete lining construction equipment, and in particular to channel slope lining troweling equipment with pre-pressing and bulldozing effects. The channel slope lining troweling equipment with the pre-pressing and bulldozing effects comprises a main truss arranged parallel to a channel slope. The two ends of the main truss are connected with a first connecting part and a third connecting part respectively. A first installation frame and a second installation frame each comprise a sliding rail arranged on a machine base. The sliding rails are matched with idler wheels arranged on walking floor beams. The walking floor beams are provided with stand bars connected with lead screw and nut lifting mechanisms. A lower beam and a beam of the main truss are fixedly connected with a rail hanging bracket. The other end of the rail hanging bracket is connected with a walking device provided with a swing frame. The walking device is connected with a traction mechanism on the first installation frame through a twisting rope. The swing frame is connected with a troweling device with a trowel through at least four floating suspenders. The troweling device is connected with a swing oil cylinder which is arranged in a hydraulic system of the walking device.

The invention discloses a construction coating device for a heat reflection type asphalt pavement coating. The construction coating device comprises two support plates, an automatic control part and a power transmission part with a power transmission belt, wherein the automatic control part and the power transmission part are arranged on one of the two support plates, the power transmission belt passes by a rolling wheel along a guide rail direction, one end of the power transmission belt is connected with the power transmission part, the other end of the power transmission belt is connected with a hollow rotary drum, and the drum body of the hollow rotary drum is full of small holes and provided with rotary drum fluff. The construction coating device is designed for the heat reflection type asphalt pavement coating; by the construction coating device, the problem that manual construction coating is time-consuming and labor-consuming and poor in coating uniformity can be solved and the mechanical construction coating of the heat reflection type asphalt pavement coating is realized; the construction coating device is simple in working principle, easy to operate and realizes the whole-process control and monitoring of the whole construction coating process.

The invention discloses a forming device and a construction process for reverse screw pile, wherein the forming device comprises a drill rod, a grouting equipment connected with external end of the drill rod and an integrated pipe cap forming device sleeved outside the upper part of the drill rod; the reverse screw pile comprises a pile body and pile ca, the outer wall of the pile body is provided with outer thread structure; the drill rod comprises a core rod and outer thread structure of rod body; the integrated pile cap forming device comprises a support, pile cap forming drill head, rotational drive device and lifting device, the pile cap forming drill head comprises a hollow sleeve and spiral blade; the forming construction process comprises steps of: 1, installing pile cap forming device; 2, drilling hole; 3, lifting and conducting synchronous pile body concrete grouting construction; 4, making the pile cap forming device drill to form clay model; 5, grouting construction of pile cap concrete; 6, forming of reverse screw pile. The forming device has reasonable design, simple construction and good effect, thus can finish construction process of pile body and pile cap of reverse screw pile easily and rapidly.

The invention provides a construction method for laying interlocking block soft mattress in an upper-beach shallow end under a low water level. The construction method comprises the steps of binding concrete interlocking blocks on an arrangement boat to make the soft mattress, arranging traction equipment on a bank slope, making a traction rope connected with the traction equipment and a tractionsteel beam, using a polypropylene rope to bind the traction steel beam and the soft mattress bond with the concrete interlocking blocks, and then pulling the soft mattress on the arrangement boat to adesigned position of the upper-beach shallow end through the pulling equipment to achieve laying construction of the soft mattress of the upper-beach shallow end under a low water level at a time. Compared with the prior art, the construction method solves the problems in the prior art that under a low water level, mat arrangement of the upper-beach shallow end under the low water level and the placement of concrete interlocking blocks are separately conducted, and the soft mattress cannot be laid as a whole; and meanwhile, the construction method has the advantages of being safe in construction, high in quality and efficiency and the like.

The invention relates to the technical field of antique building repair, concretely to a displaced member correcting process for a timber frame building. The process has the following steps: firstly,arranging supporting rods on a building roof which is seriously askew; removing a tile surface, shoveling off a mud back, removing gable walls, sill walls and other supporting roofs, and removing a roofing board and rafters to expose a large timber frame; removing wood nogs, bayonets and the like at mortise and tenon joints of the timber frame; adding center lines and rising lines on the outer skin of columns; arranging correcting rods in an opposite direction of the skew of the frame; stabilizing the supporting rods and covering the bayonets again; and removing the supporting rods. The displaced member correcting process for the timber frame building of the invention realizes mechanized construction, introduces modern testing technology and numerical simulation technology to further improve the effectiveness of the process and the safety of the structure, greatly reduces the construction cost of displaced member correcting, and has a good promotion prospect.

The invention discloses a method for detecting the uplift bearing capacity of a suction bucket. The method includes the steps that step 1, the suction bucket is lengthened, a ring-shaped suction bucket joint is arranged at the bottom of the suction bucket, and an upper section of the suction bucket and a lengthened section of the suction bucket are connected into a whole through bolts; step 2, load boxes are fixed to the inner side of the suction bucket, and are connected with oil pipes, displacement pipes and high-pressure grouting pipes; step 3, the suction bucket is sunk to a specified position, and a soil body at the end of the bucket is grouted; step 4, a self-balancing test is performed; and step 5, the suction bucket and corresponding detection devices are recovered. According to the method for detecting the uplift bearing capacity of the suction bucket, the harsh natural environment at sea can be overcome, and the uplift bearing capacity of a suction bucket foundation can be accurately measured.

The invention discloses a ridge building machine. The ridge building machine comprises a suspended connection device, a power transmission device, an auger type extrusion device and a polishing forming device. The power transmission device comprises a power conversion mechanism, a transmission shaft, a power transmission mechanism, a power reversing mechanism and a speed change mechanism. The power conversion mechanism is connected with a power output shaft of a motor vehicle. The transmission shaft is sleeved with the power conversion mechanism. The power transmission mechanism is connected with the transmission shaft through a chain wheel assembly. The power reversing mechanism is connected with the power transmission mechanism through a shaft. The speed change mechanism is connected with the transmission shaft. The power transmission mechanism is connected with the auger type extrusion device through a shaft. The power reversing mechanism is connected with the polishing forming device through a shaft. By means of the ridge building machine, ridges which are high in compaction degree, capable of preventing water leakage, smooth and attractive in surface and durable in use can be obtained, and the ridge building machine has the beneficial effects of being simple in structure, convenient to operate and use, low in maintenance cost, high in work efficiency and integration degree, and the like.

The invention discloses a heat reflection type asphalt pavement coating anti-slip particle dispensing device which comprises a 'hollow square' shaped hollow supporting plate. An inner groove longitudinally penetrating through the supporting plate is arranged on one side of the supporting plate, a vibrating component with vibrating springs is mounted on the inner groove and is fixed on the inner groove of the supporting plate through the vibrating springs, a braking control component and a charging component with a feeding slide plate are mounted on the other side of the supporting plate, the feeding slide plate is positioned above the vibrating component, trundles are mounted at the four corners below the supporting plate respectively, and a handrail is mounted on the outer side of the supporting plate. The heat reflection type asphalt pavement coating anti-slip particle dispensing device is designed according to dispensing of heat reflection type asphalt pavement coating anti-slip particles, solves the problems of time consumption, labor consumption, dispensing unevenness and the like during artificial dispensing, realizes mechanized dispensing of the heat reflection type asphalt pavement coating anti-slip particles, is simple in principle and easy to operate and can realize whole-process control and monitoring in the whole anti-slip particle dispensing process.

The invention discloses a tunnel arch frame prefabricated construction device and method. The tunnel arch frame prefabricated construction device comprises a track arranged longitudinally along a tunnel and a trolley, wherein a pulley matched with the track is installed at the bottom of the trolley; the trolley is provided with a jacking device, and the jacking device includes a base for installing on the trolley; a jacking oil cylinder is fixedly arranged on the base, and the top of a piston rod of the jacking oil cylinder is connected with a supporting steel plate. According to the tunnel arch frame prefabricated construction device and method, the tunnel arch frame prefabricated construction device can cooperate with the installation of various arch frames with different cross-section shapes, and can adjust the jacking device of the trolley of the arch frame installation according to the sizes of the cross sections of the arch frames; the precise positioning of the arch frames can be realized, and the difficult problem of mechanized arch frame installation can be solved conveniently and quickly; and mechanized construction can be realized, the manual labor is reduced, the construction period is shortened, the construction speed is fast, fewer workers are needed on site, and a lot of costs are saved.

The invention discloses a cleaning device and a cleaning method for a concrete conduit; the cleaning device comprises a water flow injector, an annular outer pipe and an annular inner pipe; the annular inner pipe is arranged in the annular outer pipe; the annular outer pipe and the annular inner pipe are hollow annular pipes; the inner walls of the annular outer pipe and the annular inner pipe areevenly arranged with a plurality of water spray holes; the top walls of the annular outer pipe and the annular inner pipe are respectively provided with water inlets; the water flow injector comprises a pressurized water inlet, a water inlet pipe, a pumping device, a water flow outlet and a water outlet pipe which are connected successively; the pumping device is used for increasing the flow rateof the water, and the water outlet pipe is connected to the inlet pipe on the annular outer pipe or the annular inner pipe; when cleaning the concrete conduit: the water flow injector is connected with the water source by a water pipe. With simple operation, the cleaning device and method provided by the invention can liberate the labor, improve the work efficiency, realize the mechanized construction, shorten the construction period and reduce the project cost. With a small floor area and strong mobility, the cleaning device can be changed according to the construction site.

The invention provides a closed polygonal reinforcement cage integrated bending machine and a reinforcement cage bending process. The invention discloses a closed polygonal reinforcement cage integrated bending machine and a reinforcement cage bending process. The closed polygonal reinforcement cage integrated bending machine comprises: a supporting mechanism; a lifting mechanism; an adjusting mechanism; a measuring mechanism; a fastener; a bending mechanism which comprises a second hydraulic rod, a rotating rod, a bending girder, a contact beam and a fixing shaft, wherein the two ends of the second hydraulic rod are rotationally connected with the bending girder and the lifting mechanism; the limiting mechanism comprises a sliding plate, a limiting plate, a first spring, a supporting plate, a limiting block and a clamping groove, the interior of the supporting plate is slidably connected with the limiting plate with the arc-shaped side wall, and the limiting plate abuts against the side wall of the fastener; and the reinforcing mechanism comprises an extrusion plate, a lifting rod, a second spring, a reinforcing plate and a toothed plate. The closed polygonal reinforcement cage integrated bending machine and the reinforcement cage bending process provided by the invention have the advantage of quickly producing prefabricated reinforcement cages.

The invention relates to matte varnish convenient for UV electrostatic spraying. The matte varnish comprises the following components, by weight: 15 to 20 parts of polyurethane acrylate resin; 8 to 10parts of 3-EO-TMPTA; 0.05 to 1 part of a wetting agent, 0.05 to 1 part of an antifoaming agent, 0.1 to 0.5 part of an anti-settling auxiliary agent, 1 to 2 parts of a photoinitiator, 1.5 to 3 parts of a matt powder, 8 to 12 parts of cellulose acetate butyrate, 22 to 25 parts of nitrocotton liquid, 0.1 to 1 part of a leveling agent and 30 to 35 parts of an organic solvent. The matte varnish can besuitable for an electrostatic spraying process, the construction difficulty of the matte varnish is greatly simplified, and the construction efficiency is conveniently improved. Moreover, the matte varnish is beneficial to realizing mechanical construction, reducing dependence on manpower and effectively avoiding introduction of personal errors, and the prepared varnish film is good in performance, low in odor and more environment-friendly.

The invention provides a construction method for laying interlocking block soft row in high beach and shallow water area under low water level. The soft row is made by tying concrete interlocking blocks on the laying ship, and traction equipment is set on the bank slope, and the traction cable is connected to the traction equipment and The traction steel beam is bound with polypropylene rope between the traction steel beam and the soft row of concrete interlocking blocks, and then the soft row on the ship is pulled to the design position of the shallow water area of ​​the high beach by the traction equipment, so as to realize the shallow water area of ​​the high beach at a low water level Software row one-time laying work. Compared with the prior art, the present invention overcomes the problem that the drainage mat and the concrete interlocking block in the high beach and shallow water area under the low water level are placed separately and cannot be constructed as a whole, and has the advantages of safe construction, good quality and high efficiency.

The present invention relates to a field of construction, in particular to a construction method of combined mold foundation, comprising the following steps: step S101, preliminary leveling of the land; step S102, construction of concrete cushion; step S103, positioning and setting out; step S104, formwork engineering; step S105, reinforcement engineering; step S106, concrete engineering; step S107, formwork removal; step S108, laying track. The advantages of the present invention are: the construction method is simple to operate, realizes mechanized construction, reduces human labor, and has a short construction period, and the construction foundation conforms to the relevant current national norms and standards.