36results about How to "Reduce construction cost input" patented technology

The invention belongs to the technical field of construction engineering construction, and particularly relates to a combined type telescopic sleeve jacking device and method. The device solves a series of problems that in high-rise and super high-rise building concrete cylinder construction, a traditional climbing formwork system is complex in a power system, large in transmission mechanism number, poor in narrow cylinder space adaptability, low in combined construction flexibility and the like. The combined type telescopic sleeve jacking device comprises a plurality of jacking unit modules,a horizontal jacking frame, an upper supporting frame, a lower supporting side frame and a plurality of longitudinal connecting beams, wherein each unit jacking module comprises a jacking oil cylinderand a telescopic sleeve frame; the jacking oil cylinders are arranged at the center positions of the telescopic sleeve frames, and the upper ends of the jacking oil cylinders are connected with the horizontal jacking frame; and the jacking oil cylinders penetrate through gaps between the longitudinal connecting beams of the upper supporting frame, and the lower ends of the jacking oil cylinders are connected with the lower supporting frame. By providing a single-oil-cylinder jacking module device with a telescopic sleeve frame, formwork system jacking operation can be independently carried out, multi-module combined jacking can be carried out according to large-space cylinder construction needs, and large-load three-dimensional operation is achieved.

The invention discloses a caulking and jointing construction method for brick joints of tiles in a tunnel. The caulking and jointing construction method is characterized in that a brick joint caulkingand jointing device is adopted to caulk or joint the brick joints of the tiles in the tunnel; the brick joint caulking and jointing device includes a caulking and jointing trolley capable of moving back and forth on the surface of a masonry structure and a storage hopper for storing filling mortar which is used for filling the brick joints; when caulking is actually performed, the steps of jointing device removal, storage hopper connection, filling mortar adding, being-in-place of a caulking trolley with a hopper and caulking are included; and when jointing is actually performed, the steps ofstorage hopper connection, filling mortar adding, being-in-place of a jointing trolley with a hopper and jointing are included. The caulking and jointing construction method has reasonable design, simple and convenient construction, high construction efficiency and good use effect, the movable brick joint caulking and jointing device is used for caulking or jointing the brick joints, the fillingmortar can be automatically fed into the treated brick joints, compaction and groove pressing forming can be performed on the filling mortar fed into the brick joints, and the quality of caulking andjointing can be ensured.

The invention discloses a method for reducing the thickness of subsealing concrete of a steel cofferdam and preventing seepage, comprising the following steps of: a. assembling the steel cofferdam and welding an upper circle of shearing resistant structure and a lower circle of shearing resistant structure along the inner wall of the steel cofferdam; b. feeding the steel cofferdam in water; c. welding an upper circle of shearing resistant structure and a lower circle of shearing resistant structure on the outer wall of each steel protecting tube and sequentially punching the steel protecting tubes into a foundation in the steel cofferdam; d. constructing all drilling piles; e. cleaning the foundation in the steel cofferdam and flushing the steel cofferdam and the shearing resistant structures underwater on the steel protecting tubes; f. pouring the subsealing concrete to be combined with the steel protecting tubes, the steel cofferdam and the shearing resistant structure into a whole; and g. pumping water from the steel cofferdam and constructing a bearing platform. According to the method, by arranging the shearing resistant structures, after water in the steel cofferdam is pumped, the force transfer mode of the subsealing concrete and the inner wall of the steel cofferdam and the outer walls of the steel protecting tubes is converted into a bonding force and a shearing force from the mutual bonding force, so that the dereference of the concrete bearing capacity accords with the reliable basis and the thickness of the subsealing concrete can be reduced; and the water seepagae in the steel cofferdam can be prevented.

The invention discloses a rainwater recycling system for sponge city overpass and a construction method of the rainwater recycling system. The rainwater recycling system comprises a rainwater collection device, rainwater pretreatment equipment and a water storage well, the rainwater collection device comprises a rainwater pipe and a collector, a water collection pump is mounted on the collector, and the rear end of the rainwater pipe is connected onto the water collection pump while the front end of the same is connected onto a deck of the overpass; the lower end of the collector is connected with a first guide pipe, the other end of the first guide pipe is connected with the rainwater pretreatment equipment, a diverter is mounted at the lower end of the rainwater pretreatment equipment, a second guide pipe is connected on the diverter and connected to the water storage well, a submerged pump is mounted in the water storage well, and a recycling pipe is connected on the submerged pump. An existing overpass draining pipeline is introduced into the collector, and rainwater is purified with the help of the rainwater pretreatment equipment, guided into the water storage well and then recycled through the recycling pipe, so that reasonable utilization of rainwater resources is realized, city water consumption pressure is relieved, the draining problem of the overpass is solved effectively, and city traffic is guaranteed.

The invention relates to a method for processing, manufacturing and constructing a prefabricated small box girder hanging bracket, which comprises a small box girder hanging bracket structure design and processing and manufacturing method: the small box girder hanging bracket structure is formed by forming a group by two hanging brackets, each hanging bracket is provided with eight waist-shaped hoisting holes, and eight preformed holes are reserved in corresponding positions of a small box girder; the hanging bracket is connected with the small box girder through a high-strength hanging rod/finish rolling deformed steel bar; two lifting lugs are arranged on each lifting frame and are connected through lifting pin rods, and lifting operation can be carried out through shackles and lifting equipment; a small box girder mounting and small box girder hanging bracket using method comprises the steps that small box girders are transferred and loaded in a prefabricated part factory through the small box girder hanging bracket; the small box girder is hoisted and installed on the top of the bent cap through the small box girder hoisting frame after being transported to an installation site, and the small box girder hoisting frame is dismantled after the small box girder is hoisted. The problems that the small box girder is difficult to install in a complex environment and the small box girder structure is uneven in stress under a special hoisting working condition are solved; and by using the small box girder hanging bracket, the construction safety is greatly improved, and the construction cost is saved.

The invention discloses a cantilever excavator-based construction method for a single-line tunnel close to an operation line. The construction method comprises the following steps that firstly, an upper step of a first unit section is constructed; secondly, an upper step of a second unit section is constructed; thirdly, a lower step of the first unit section is constructed; fourthly, an upper stepof an i unit section is constructed; fifthly, a lower step of an i-1 unit section is constructed; sixthly, the fourth step to the fifth step are repeated till excavation of an upper step of aK unit section and excavation of a lower step of a K-1 unit section are completed; and seventhly, a lower step of the K unit section is constructed. A cantilever tunneling machine is applied to construction of the single-line tunnel close to the operation line, the tunnel is excavated through a non-blasting method, the influence of blasting vibration on the operation line is avoided,multi-cycle excavation supporting construction can be conducted every day, the safety of the operation line can be effectively guaranteed, tunnel overexcavation is effectively controlled, the use amount of primary supporting sprayed concrete is reduced, the construction cost investment is reduced, and the concrete ultra-consumption construction problem which is difficult to solve by a traditionaldrilling and blasting method is solved.

Disclosed is a wall-attached type mountain-row waterscape structure system. The wall-attached type mountain-row waterscape structure system is formed in the mode that a cantilever type concrete retaining wall is arranged in the rugged terrain position of a river channel to serve as a foundation structure so as to form the water height difference, and rocks are arranged on the surface of the cantilever type concrete retaining wall layer by layer according to the modeling requirement to form a decorative surface. The wall-attached type mountain-row waterscape structure system comprises the multiple layers of rocks, the cantilever type concrete retaining wall and stainless steel tying pieces; the rocks are used for being arranged layer by layer according to the modeling requirement to form amain body part of a decorative surface layer of the wall-attached type mountain-row waterscape structure system, and a prefabricated hole is preformed in the middle of the top of each rock; the cantilever type concrete retaining wall and the rocks are in anchorage connection through the stainless steel tying pieces pre-embedded in the cantilever type concrete retaining wall and gelation materialsin the prefabricated holes of the rocks in an inserting mode; and the rocks of the upper layers and the rocks of the lower layers are fixed in a mortar pre-bedding mode. The wall-attached type mountain-row waterscape structure system is good in structural stability and simple and convenient in construction method, the space can be utilized reasonably, investment of the construction cost is reducedeffectively, and the water retaining and stopping effects are good.

The invention provides a modular planting system structure for vertical greening of a wall surface and a construction method thereof. The modular planting system structure for vertical greening of the wall surface comprises a fabricated net rack, planting boxes, planting barrier soil blocks and planting bags, wherein the fabricated net rack is fixed to the side wall of the wall surface through a main bearing keel, the fabricated net rack comprises a plurality of transverse rods and vertical rods, and the transverse rods and the vertical rods are connected in a transversely and longitudinally staggered mode to form a plurality of planting groove blocks; the planting boxes can be opened and closed and are fixed to the planting groove blocks in a one-to-one correspondence mode; the planting barrier soil blocks are embedded and fixed in the planting boxes; each planting bag is provided with a through opening suitable for an opening of the corresponding planting box, the planting bags are fixed to the fabricated net rack and hangs and covers the planting boxes, and the through openings corresponds to the openings of the planting boxes. According to the modular planting system structure for vertical greening of the wall surface, the vertical greening type forms of existing buildings can be increased, meanwhile, the falling probability can be reduced, and the safety and reliability of a green plant wall are guaranteed.

The invention belongs to the technical field of constructional engineering construction, particularly relates to an automatic jacking cylinder frame formwork system for concrete structure constructionand a method thereof, and aims to solve the problems of many potential safety hazards and low climbing efficiency in a traditional construction process during construction of concrete cylinder structures of high-rise and super high-rise buildings. The device comprises a formwork operation system, a steel bar operation frame, a sleeve frame jacking system and a control system; the formwork operation system comprises stand columns, a formwork opening and closing device and a shaping formwork, and connecting plates are arranged at the upper ends and the lower ends of the stand columns; the steelbar operation frame comprises a plurality of profile steel rod pieces and bottom connecting beams which form a steel frame structure together with the stand columns, the sleeve frame jacking system comprises a jacking oil cylinder telescopic sleeve frame, a horizontal jacking frame, an upper supporting frame, a lower supporting frame and a plurality of longitudinal connecting beams; and the automatic control system is used for intelligently controlling full-automatic opening and closing of a formwork and full-automatic climbing of a jacking cylinder frame formwork.

The invention discloses a rapid construction method for an underwater isolated pier support platform. Inserting and driving of inclined steel pipe piles in water and manufacturing of a platform support on land are conducted at the same time. The platform support is mainly composed of cross beams and longitudinal beams. The platform support is hoisted to the inclined steel pipe piles through hoisting equipment, and welded and reinforced; and concrete is poured on the platform support, and anchorage pier manufacturing is completed. The method is simple in construction, safe and rapid, and smoothconstruction is guaranteed; and the labor investment and working hours can be reduced, the construction cost investment is effectively reduced, and the construction period is shortened.

The invention provides a repair method for existing industrial factory building production equipment, the production equipment comprises a plurality of components and a base, the repairing method comprises the following steps: carrying out three-dimensional scanning on the production equipment to form a model diagram, and determining defective failure components in the production equipment according to the model diagram; reinforcing the base, supporting and reinforcing the position, corresponding to the failure component, of the production equipment and removing the failure component; repairing the part, corresponding to the failure component, in the model diagram, making a replacement component corresponding to the failure component according to the repaired model diagram, and installing the replacement component correspondingly on production equipment; and carrying out antique repair treatment on the surface of the production equipment. To-be-repaired parts of the existing production equipment is subjected to cleaning, component replacement, reinforcement and distressing treatment, and the factory building is repaired under the condition that the original production equipment is reserved.

The invention discloses a method for salvaging a large bottom supporting plate integrally descending into the river in a blocking mode. The large bottom supporting plate is partitioned; all the blocksare spliced together through the connecting structures and then connected with the large steel structure into a whole, stable self-floating of the large steel structure is achieved after the large steel structure enters water, connection with the large steel structure is cut off, the splicing structures between all the blocks are snapped through the self-weight of the large bottom supporting plate, and the large bottom supporting plate is automatically blocked and salvaged underwater. According to the method, large salvage equipment and diver operation are not needed, rapid recycling and cyclic utilization are achieved, high safety and economical efficiency are achieved, labor investment and working hours are reduced, construction cost investment is effectively reduced and the construction period is shortened.

The invention relates to the technical field of steel bar sleeve grouting and discloses a grout sleeve for steel bar connection. The grout sleeve comprises an on-site assembling end and a prefabricated mounting end which are sequentially arranged in the grout flowing direction, wherein the on-site assembling end is provided with a feeding through hole, and the prefabricated mounting end is provided with a discharging through hole; a feeding conduit is fixed to the feeding through hole, and a discharging conduit is fixed to the discharging through hole; two wavy bosses are arranged on the innerwall of a grout sleeve body and are distributed at the two sides of a longitudinal section of the grout sleeve body in spatial symmetry along a longitudinal line; and upper groove lines are arrangedabove a transverse section of the outer wall of the grout sleeve body, lower groove lines are arranged below the transverse section of the outer wall of the grout sleeve body, and heat exchange circulating pipelines are tightly attached to the upper groove lines and the lower groove lines respectively. According to the grout sleeve, bubbles introduced in the grout construction process can be smoothly discharged, the universality of stress of a grout connecting joint of the steel bar sleeve is improved, the machining difficulty of the grout sleeve is lowered, the process is simple, the universality is high, and the requirement for construction in winter and summer can be met.

The invention relates to an elevator hoistway frame and an elevator. The elevator hoistway frame comprises a hoistway frame body, an isolation layer frame and a communication base station frame, wherein the isolation layer frame is arranged at the top of the hoistway frame body; the communication base station frame is arranged on the isolation layer frame; and the communication base station frameand the hoistway frame body are arranged on the two opposite sides of the isolation layer frame respectively. According to the scheme, the communication base station frame is integrated above the hoistway frame body, so that the top space of the hoistway frame is fully utilized, meanwhile, the communication base station frame is prevented from additionally and independently occupying a public space, the construction investment of a signal tower is reduced and avoided, and the early-stage construction cost investment is greatly reduced; and in addition, the isolation layer frame located in themiddle plays a good role in signal shielding, so that all the elevator function assemblies installed on the hoistway frame body and all the communication base station devices installed on the communication base station frame operate independently and normally and do not interfere with one another.