57results about How to "Reduce on-site construction procedures" patented technology

A prefabricated reinforced concrete beam with a transverse high-strength concrete separation plate employs an idea of casting a part of a prefabricated part in situ, and is composed of a prefabricated part and a cast-in-situ part, and comprises a prefabricated U-shaped high-strength concrete groove, first in-situ common concrete packed into the prefabricated U-shaped high-strength concrete groove, multiple transverse high-strength concrete separation plates which are arranged in the prefabricated U-shaped high-strength concrete groove and are perpendicular to the groove length direction, multiple closed stirrups which are arranged in the prefabricated U-shaped high-strength concrete groove and are perpendicular to the groove length direction, multiple first longitudinal ribs which are arranged in at the bottom of the prefabricated U-shaped high-strength concrete groove and are parallel to the groove length direction, and a cast-in-situ flange plate arranged at the top of the prefabricated U-shaped high-strength concrete groove. The invention also provides a construction method for the beam. According to the technical scheme, the longitudinal anti-shearing effect between the prefabricated concrete and cast-in-situ concrete is improved, and also lateral destroying is prevented, and the crack resistance, durability and fireproof performance of the beam are improved.

The invention relates to a process for constructing underground structural walls without linings. The process is characterized by prefabricating wall panels on the ground, transporting the wall panels, forming slots, hoisting the wall panels into the slots, constructing spliced piles and grouting the toes and sides of the walls. The process has the following advantages: the underground structural wall panels can be fabricated on the ground and then transported to the construction site to hoist and form slots on the underground structural walls and install and splice the wall panels, and the slots can be continuously formed on the underground structural wall panels and the underground structural wall panels can be continuously hoisted, thus improving the construction efficiency; the underground structural walls are unnecessary to serve as lining walls when serving as underground structures combining two walls, thus improving the use ratio of the underground space; the construction technology of the underground structural walls without linings is applied, thus reducing the site construction processes, shortening the construction period and ensuring the quality of the underground structural wall bodies; the process for constructing the foundation pit enclosure structure saves resources, is environment-friendly and further ensures quality; and by using the process, the economic and social benefits are remarkable and the research results have higher application value.

This application discloses a "pile first method" interpolated jacket foundation construction system for an implantable rock-socketed pile. The construction system comprises a steel pile casing, a steel pipe pile prefabricated with pile core bottom sealing concrete and a jacket; the steel pile casing is sank to a preset position, the steel pipe pile prefabricated with the pile core bottom sealing concrete is implanted in the inner side of the steel pile casting, and a first annular space among the bottom of the steel pipe pile, the steel pipe pile and a rock-socketed hole wall and a second annular space between the steel pipe pile and an overburden layer are both prefabricated with grouting pipelines; and after the first annular space and the second annular space are grouted, the tip part of a pile leg column of the jacket is inserted into the steel pipe pile and fixedly connected with the steel pipe pile, and a third annular space is prefabricated with a grouting pipeline. This systemproposes to pre-pour pile core the concrete to seal the bottom in the pile before the steel pipe pile is shipped, the construction risk is reduced, a offshore construction window is saved, the construction quality of the pile core concrete and the grouting construction quality of a rock-socketed section are ensured, and at the same time, the grouting quality of the rock-socketed section is ensured.

The invention discloses an ultra-high performance concrete wet joint structure with prefabricated small box girders and a construction method of the ultra-high performance concrete wet joint structure. The wet joint structure comprises a plurality of prefabricated small box girders, wherein each prefabricated small box girder is arranged along the bridge direction, and a wet joint along the bridgedirection is formed between two adjacent prefabricated small box girders; a bridge deck slab straight section is arranged at the top of the prefabricated small box girder, a plurality of annular reinforcing steel bars are pre-buried in the bridge deck slab straight section, each annular reinforcing steel bar is arranged in the transverse bridge direction, and the annular ends of the annular reinforcing steel bars extend into the wet joints; a plurality of constructional steel bars are arranged in the wet joint, and each constructional steel bar is arranged in the bridge direction; ultra-high-performance concrete is poured into the wet joints, the constructional steel bars and the annular steel bars extending into the wet joints are wrapped in the ultra-high-performance concrete, and everytwo adjacent small prefabricated box girders are connected into a whole through the ultra-high-performance concrete of the wet joints and the annular steel bars wrapped in the ultra-high-performanceconcrete. According to the invention, the construction procedure can be simplified, the construction efficiency is improved, the manufacturing cost is reduced, and the construction quality is effectively improved.

The invention relates to a prefabricated reinforced concrete beam with transverse steel partition boards. By adopting the idea of partial prefabrication and partial cast-in-situ, the prefabricated reinforced concrete beam is composed of a prefabrication part and a cast-in-situ part, and specifically includes: a precast U-shaped high-strength concrete groove; cast-in-situ common concrete 1 filling the precast U-shaped high-strength concrete groove; several transverse steel partition boards that are disposed in the precast U-shaped high-strength concrete groove and are perpendicular to the groove length direction; several closed stirrups that are disposed in the precast U-shaped high-strength concrete groove and are perpendicular to the groove length direction; several longitudinal bars 1 that are disposed at the bottom of the precast U-shaped high-strength concrete groove and are parallel to the groove length direction; and a cast-in-situ frange plate disposed at the top of the precast U-shaped high-strength concrete groove. The invention also provides a construction method of the beam. The construction method provided by the invention can improve the longitudinal anti-shearing effect between precast concrete and cast-in-place concrete, at the same time prevents lateral damage, and improves the crack resistance, durability and fire resistance of the beam.

The invention discloses a precast concrete shear wall component and a construction method thereof. The precast concrete shear wall component comprises a precast concrete wall panel, embedded column reinforcement cages and protecting shells, wherein the embedded column reinforcement cages are positioned on two sides of the precast concrete wall panel, and the protecting shells sleeve the embedded column reinforcement cages. A plurality of reserved joint bars are arranged above the precast concrete wall panel, and a plurality of reserved bolt holes matched with the reserved joint bars in position are formed below the precast concrete wall panel. Compared with the prior art, the precast concrete shear wall component and the construction method thereof have the advantages that binding the embedded column reinforcement cages on two sides of the precast concrete wall panel on site is omitted, so that on-site construction process steps are decreased and on-site construction time is shortened; on-site connection between the precast concrete wall panel and the bound embedded column reinforcement cages is omitted, so that construction efficiency is improved and construction space is reduced; a construction period is shortened and labor and time costs are saved; construction industrialization and mechanization degree is enhanced, and dependency on increasingly intense labor resource is reduced.

The invention provides an insulating layer and inner wall surface combined type wall body module, which comprises outer formworks, inner formworks and cross structures, wherein an inserting groove and an inserting tenon which are mutually matched are arranged on every two corresponding sides of each inner formwork and each outer formwork; the outer formworks are heat preservation boards made of thermal insulation material and provided with grooves distributed on the surfaces; the inner formworks are a high density plate, a fiber magnesium plate and a fireproof plate, and are provided with plane surfaces, inner walls incapable of absorbing water and inserting tongue-and-grooves; one end of each cross structure is provided with an insert plate, and the other end of each cross structure is provided with a plane end plate; cross structure inserting grooves are formed in each outer formwork; the end, provided with the insert plate, of each cross structure is inserted into each cross structure inserting groove; the end, provided with the plane end plate, of each cross structure is connected with each inner formwork through a bolt. According to the invention, the bearing, heat preservation and the inner wall surface of the wall body can be constructed through one step, the construction procedures on field can be reduced, and the damage to the formworks caused by the on-site insertion between the cross structures and the formworks can be avoided.

The invention discloses a tunnel construction drainage treatment method and a treatment device thereof. The treatment device comprises a vacuum diverting device, a lifting pump, a pipe type mixer and a drainage treatment unit; the treatment method comprises the following steps: (a) constructing a regulating basin, a sludge discharge and drainage collecting basin and a monitoring basin in a construction site, starting the vacuum diverting device and the lifting pump, pumping sewage to the pipe type mixer, then flowing into the drainage treatment unit; (b) respectively adding a coagulant and a flocculant into a medicinal liquor dissolving tank, weighing the medicinal liquor through a metering pump and then mixing together with sewage in the pipe type mixture; (c) draining the sewage through the drainage treatment unit, and then flowing in the monitoring basin, detecting the effluent water of the monitoring basin, and draining if the effluent water is qualified and reflowing in the regulating basin if the effluent water is unqualified; and (d) settling and flowing in the sludge discharge and drainage collection basin, standing and layering, enabling a supernatant liquid to flow in the regulating basin, and rinsing and backfilling the settled sludge. The tunnel construction drainage treatment method and the treatment device thereof are high in automation degree, simple and convenient to operate, and stable in the quality of the effluent water.

The invention relates to a modular steel frame connection device. the modular steel frame connection device at least comprises a first square steel tubular column and a second square steel tubular column which are internally hollow and are connected through an inner sleeve. The inner sleeve is in clearance fit with the second square steel tubular column. the periphery of the inner sleeve is annularly provided with locating blocks parallel to the column opening of the first square steel tubular column and the column opening of the second square steel tubular column. the modular steel frame connection device further comprises a connection plate provided with an assembly hole matched with the inner sleeve. modular steel frames are connected in an inner sleeve mode, the fixing mode of screws or bolts is omitted, procedures of site construction are omitted, and the construction time is shortened. the modular steel frames and inner sleeves are welded, the firm degree between the frames is enhanced, and risks caused by loosening of the screws or the bolts are avoided. The modular steel frames are partially machined in a factory in advance and then constructed in a construction site, so that the site construction time is shortened greatly, and too many influences on the site environment are avoided.

The invention discloses steel bridge deck prefabricated paving equipment. The steel bridge deck prefabricated paving equipment can change the traditional steel bridge deck pavement construction procedure and technology. The steel bridge deck subjected to sand blasting and anti-rust coat and tack coat spraying can be paved with asphalt concrete in a factory, and is conveyed to a construction site for bridge deck assembling after forming. After assembling, the SMA asphalt mixture and other surface materials can be directly paved on the steel bridge deck. On-site construction procedures are reduced, construction difficulty is lowered, influence on construction by weather is avoided, and steel bridge paving quality and efficiency are effectively improved. The steel bridge deck prefabricated paving equipment comprises a walking machine frame and a paving mechanism, and is provided with a moving material cabin. The walking machine frame comprises a moving portal frame, a guide rail and the like. The paving mechanism comprises a spiral material arranging machine, an ironing plate and an ironing plate lifting device. The moving material cabin comprises a vertical lifting material cabin anda horizontal paving material cabin.

The invention relates to a ribbed supporting-free unit formwork device including an unit formwork frame, formwork shells, steel reinforcement cages, and fixing parts. The unit formwork frame is of a grid-shaped grille, the formwork shells are laid on the upper surface of the unit formwork frame successively, the fixing parts are evenly distributed on the steel reinforcement cages at intervals, thesteel reinforcement cages are arranged on the flanging edges of the formwork shells, and the steel reinforcement cages, the unit formwork frame, and the formwork shells are connected to form a wholethrough fixing parts. The invention further provides a mounting method of the ribbed supporting-free unit formwork device, so that the mounting is convenient, the assembly can be carried out on the scene, the recycling utilization can be achieved, the construction costs can be lowered, the device can simplify construction processes of full laying or strip laying and steel reinforcement cage binding on the scene, the splicing and fixing are convenient, and the device can be circularly utilized in ribbed beam floor cap construction.

The invention discloses a total precast lower structure of a bridge and a construction method. The structure is mainly composed of single whole precast lower components, a precast base plate, a prestressed steel strand and aseismic ribbed bars; single precast components which are precast in a factory overall are composed of cover beams, pier columns and enlarged foundations; the cover beams of the whole single precast components are reserved with corrugated pipes, and the prestressed steel strand is connected with the components in series through the reserved corrugated pipes in site assembly; concrete cast-in-site segments are arranged between the enlarged foundations of the single precast components, and the enlarged foundations of the single precast components are integrally connected in site construction; the whole precast base plate is arranged on the bottom of a whole foundation; when main beams to be precast is reserved on the tops of the cover beams of the precast components, the tops of the cover beams extend into the aseismic ribbed bars of main beam reserved holes. According to the total precast lower structure of the bridge and the construction method, the mode is simple, and the structure is suitable for a high intensity seismic zone.

The invention discloses a split mounting technique of a quick home-decoration split mounting engineering. A quick home-decoration split mounting engineering main body comprises quick split mounting roof splits, quick split mounting wall surface splits, quick split mounting floor splits, quick split mounting door frames/window frames, wherein the quick split mounting roof splits comprise roof supports, roof bottom/surface plates and roof accessories; the quick split mounting wall surface splits comprise wall surface supports, a wall surface bottom plate, wall surface face plates and wall surface accessories; the quick split mounting floor splits comprise a base plate, a rubber layer and floor tiles; the quick split mounting door frames/window frames comprise door frame/window frame bottom plates, as well as upper, lower, left and right door frames/window frames; a loop circuit is additionally provided; the quick split mounting wall surface splits, the quick split mounting roof splits, the quick split mounting floor splits, the quick split mounting door frames/window frames, the loop circuit, and the like are subjected to split mounting to form a basic structure, a bathroom structure and a kitchen structure, and then are further subjected to combination and split mounting, so that home decoration engineering is accomplished. The split mounting technique disclosed by the invention does not destroy a house blank, is capable of reducing site construction procedures and shortening a construction period, is available for all-day construction, and can easily realize industrialized production.

The invention discloses a full-prefabricated concrete anti-collision guardrail and a construction method. The guardrail comprises a plurality of spliced prefabricated concrete anti-collision guardrailsections, wherein a connecting device is arranged at the bottom of each prefabricated concrete anti-collision guardrail section; the connecting device is connected with the top plate of a bridge surface; the connecting devices comprise steel casings, pulp inlet tubes and pulp outlet tubes; bridge surface reserved reinforcing steel ribs are sleeved by the steel casings; the pulp inlet tubes and the pulp outlet tubes are respectively connected with the steel casings. The mounting efficiency can be improved, full prefabrication of a concrete anti-collision guardrail can be achieved, on-site construction procedures can be reduced, and the mounting time can be shortened.