15results about How to "Improve construction period" patented technology

The utility model relates to the field of pile foundations, in particular to an uplift precast pile structure which comprises a precast hollow pile and an anchoring device, the anchoring device is connected with the precast hollow pile, a plurality of unbonded prestressed steel strands are arranged in the precast hollow pile, and the anchoring device comprises a pile bottom anchoring part and a pile top anchoring part. The anti-pulling precast pile solves the problem that an anti-pulling precast pile in the prior art cannot be used as a long pile or an ultra-long pile, improves the anti-pulling bearing capacity of a single pile, improves the stress performance of the anti-pulling pile, and enables the anti-pulling pile to have better integrity and anti-pulling ductility.

The invention discloses a highway reconstruction and extension project asphalt pavement compaction quality accurate prediction algorithm, and the algorithm comprises the steps: collecting the rolling times, speed, track, temperature and vibration data of a road roller in real time according to an on-site intelligent device and a sensor, and carrying out the correlation analysis of the compaction degree data and corresponding information supervision key parameters; and an artificial neural network model is established, real-time prediction of the compaction degree by informatization supervision key parameters is realized, quality problems are found in time, and the construction quality is mastered in real time, so that shoveling and re-paving of completed parts in the later period are avoided, the pavement quality is ensured, and the construction period is shortened.

A method for dismounting and transferring a large immersed tube full-section prefabricated formwork in a limited space comprises the steps that an outer formwork trolley is averagely split into two outer trolley parts, the first outer trolley part is horizontally moved to the front side of a second immersed tube prefabricated area, the first outer trolley part is horizontally rotated to the longitudinal direction, and the second outer trolley part is horizontally moved to the front side of the second immersed tube prefabricated area; and horizontally rotating the second outer trolley part to an inclined state, longitudinally and backwards translating the second outer trolley part to the rear side of the first outer trolley part, horizontally rotating the first outer trolley part and the second outer trolley part to the transverse direction, and assembling the first outer trolley part and the second outer trolley part into the outer mold trolley. According to the embodiment of the invention, the prefabricated template is divided into a plurality of trolley modules, so that the trolley modules can translate towards the second immersed tube prefabricating area along the transverse construction channel, the trolley modules are transferred to the second immersed tube prefabricating area one by one in a transverse translation and rotation mode, and the sequence of the trolley modules is kept consistent in the two immersed tube prefabricating areas; the trolley modules can be combined into the prefabricated formwork again, the number of transferring steps is small, and the construction speed is high.

The utility model relates to an assembly type composite floor slab. The assembly type composite floor slab comprises a shear wall tension brace combined formwork system, a multi-rod synchronous adjustment unit type independent supporting system, a post-cast strip wet connection hanging formwork system, a three-dimensional container type stacking frame, a height-adjustable composite floor slab and a composite floor slab overhanging I-steel local stiffness reinforcing and fixing system which are adopted for assembly type composite floor slab construction. By the adoption of a modular assembly mode, time and labor cost can be saved, engineering efficiency can be improved, construction is convenient and fast, the device has great significance in improving the construction period, reducing waste and promoting environment-friendly practice, and the device has wide application prospects.

The utility model relates to the technical field of pipelines, in particular to an ultrapure water system pipeline structure which comprises a main pipeline, a horse mouth connecting hole is formed in the side wall of the main pipeline, a welding saddle is installed at the position of a port of the horse mouth connecting hole, and a valve is arranged at one end of the welding saddle. According to the utility model, the horse mouth connecting hole is formed in the outer wall of the main pipeline to replace a tee joint, the saddle processing piece is processed according to different pipeline specifications, the radian of the processing piece for welding the saddle is consistent with the radian of the outer wall of the corresponding different main pipeline, and the processing piece and the pipeline wall are simultaneously heated by using the arc-shaped infrared heating ironing plate; then a clamp is adopted for clamping a machined part welding saddle and a main pipeline, it is guaranteed that the machined part welding saddle and the main pipeline are tightly attached, after the machined part welding saddle and the main pipeline are completely cooled, a proper tapper is used for tapping, a vacuum dust collector is started at the same time, it is guaranteed that chippings are sucked away in time, a chamfering device is used for chamfering an arc at the joint of the welding saddle and the main pipeline after tapping is completed, and dead corners are avoided; and the practicability is better.

The invention discloses a foundation pit engineering steel truss support and concrete support combined system servo system and a construction technology, and relates to the technical field of deep foundation pit engineering.The foundation pit engineering steel truss support and concrete support combined system servo system comprises an enclosure structure, the enclosure structure is buried around a foundation pit, the outer side face of the enclosure structure abuts against a soil body of the foundation pit, and an initial support is installed between the opposite faces of the top of the enclosure structure; the inner side faces of the enclosure structures abut against the foundation pit combined supporting system. The foundation pit combined supporting system comprises a steel truss supporting system and a concrete supporting system, the concrete supporting system is installed in the middle of a foundation pit, the two ends of the concrete supporting system are fixedly connected with the steel truss supporting system, and the steel truss supporting system abuts against the inner side face of the enclosure structure through steel enclosing purlins. And a prestress loading unit is arranged between the opposite surfaces of the steel truss supporting system and the steel enclosing purlin. According to the foundation pit engineering steel truss support and concrete support combined system servo system and the construction technology, construction is convenient, the construction period is short, and the cost is low.

The utility model discloses a basement retaining wall structure and a basement structure, and belongs to the field of buildings, in order to solve the problem that in the prior art, the construction period for building side walls and supporting and retaining structures of basement walls is long, the basement retaining wall structure comprises a wall body (6), a buttress (14), a wall toe (3), a wall heel (1) and an anti-skid key (2), the buttress (14) is connected with the wall body (6) and the wall heel (1), and the anti-skid key (2) is connected with the buttress (14). The wall heel (1) and the anti-skid key (2) are connected up and down, the anti-skid key (2) is of a strip-shaped structure, and the extending direction of the anti-skid key (2) is the same as that of the wall body (6). The basement retaining wall structure not only can be used as a basement outer side wall to play a permanent retaining role, but also can ensure the backfill operation of a retaining area and the construction of other structures of the backfill area while ensuring the normal construction of the basement, and does not need to construct a basement side wall and a retaining structure at the same time, so that the construction period is shortened, and the construction cost is reduced. And the construction cost is also saved.

The present invention discloses an aluminum alloy inner mold system for a variable-section cast-in-place box girder with a transverse diaphragm, which is composed of a template system and a support system installed in the box girder. The template system includes a standard template, a special-shaped template and a first-removal block template, which are respectively installed at the linear straight part, the variable-section part and the center of the top plate template end of the box girder. The support system includes a base beam, a base beam seat and a steel pipe bracket built on the base beam. The front end of the base beam is suspended on the front upper cross beam of the hanging basket through a hanger rod, and the rear end is installed on the base beam seat. The base beam seat is supported on the bottom plate of the cast beam section; the top of the steel pipe bracket is installed with a keel through a top support, and the keel supports the template. The construction steps include: (1) box girder structure analysis; (2) aluminum alloy inner mold design; (3) aluminum alloy inner mold installation; (4) aluminum alloy inner mold removal. The aluminum alloy inner mold system is used in the construction of variable-section cast-in-place box girders with transverse diaphragms, which can solve the problems of the current steel or wooden template assembly and turnover troubles, long construction period, and large material waste.

The invention relates to the field of civil engineering construction, and discloses a stone deep cutting shallow hole step blasting method which comprises the steps that S1, a site is leveled, and the blasting depth of a first layer and the blasting reserved width of a first layer step after blasting construction are determined; s2, determining a main excavation boundary line position, a blast hole position and a blasting main excavation boundary line; s3, arranging a plurality of blast holes in the first layer by adopting a perforating machine; s4, the arrangement and depth of each blast hole are checked, and explosives are installed in each blast hole; s5, the electronic detonators of the explosives in all the blasting holes are connected through detonating cords to form a blasting network, and the connected blasting network is connected with an electronic detonator exploder; s6, protection and warning are carried out, and millisecond blasting detonation is carried out; the presplitting blasting method is adopted for the slope cutting, adverse effects such as slope vibration in the excavation process of the main blasting area can be effectively avoided, the millisecond one-by-one blasting method is adopted, the millisecond time is gradually increased from inside to outside, the blasting effect is guaranteed, and ground vibration is reduced.

An assembled corridor has two rows of alternate foundation bodies, the foundation bodies support columns, the columns support a roof, the middle of the foundation body has an upward open column anchoring hole, the lower end of the column is adaptively inserted into the column anchoring hole, the roof is composed of a bottom roof bottom surface and two side inward inclined roof surfaces, the cross section is approximately triangular, a hollow part in the middle forms a corridor hole, the top intersection of the two roof surfaces is provided with a roof ridge, the roof bottom surface is provided with a column anchoring hole, the top of the column is provided with a roof connecting boss, the roof connecting boss is inserted into the column anchoring hole, the upper and lower parts of the column are correspondingly provided with a connecting beam anchoring point and a stool plate anchoring point, the connecting beam anchoring points of adjacent columns are connected with a connecting beam, and the stool plate anchoring points of adjacent columns are connected with a stool plate. The foundation body, the column, the connecting beam, the stool plate and the roof are processed in the factory, are transported to the site for assembly, can accelerate the construction period, and are convenient for later removal and reuse.

The utility model relates to the technical field of steel pipe truss supporting structures, in particular to a large-span steel pipe truss temporary supporting jig frame which comprises a tower crane standard knot supporting frame and a top adjusting frame arranged above the tower crane standard knot supporting frame, and the top adjusting frame comprises four supporting columns vertically arranged at the top of the tower crane standard knot supporting frame. The adapter plate is arranged at the tops of the four supporting columns, the adjusting component is arranged above the adapter plate, the adapter plate is welded and fixed to the top ends of the four supporting columns at the same time, the adjusting component comprises an adjusting rod arranged on the adapter plate, a guide column arranged on the top face of the adapter plate and a supporting frame arranged at the top end of the guide column, and the adjusting rod is a screw rod; the adjusting rod is perpendicular to the adapter plate and is in threaded connection with the adapter plate, the guide column comprises an outer cylinder and an inner rod, the inner rod is arranged in the outer cylinder and is in sliding connection with the inner wall of the outer cylinder, the supporting frame comprises a rectangular frame and two reinforcing rods, and the top end of the adjusting rod is rotationally connected with the intersection of the two reinforcing rods through a bearing.

The invention provides an assembly type combination column base of a rock foundation. The assembly type combination column base comprises a bottom plate, a connecting base, a force transmission component set and an anti-torsion component. The bottom plate is provided with a plurality of first embedded parts and a plurality of second embedded parts, the first embedded parts are used for penetrating through a foundation and then being anchored into rock, and the second embedded parts are used for stretching into the foundation; the plurality of force transmission component groups are arranged at intervals and are used for connecting the base and the connecting seat; the torsion-resistant component comprises a first ball body and a second ball body which are arranged at an interval in the vertical direction and a connecting rope for connecting the first ball body and the second ball body, the first ball body and the second ball body are rotationally arranged on the connecting base, the first ball body is used for being connected with a wooden column, and the second ball body is used for being connected with the wooden column. The radius of the first ball body is larger than that of the second ball body, so that the wood column transmits torsion to the second ball body through the first ball body. The technical problems that a traditional column foot is large in excavation amount, long in construction period and poor in stability are solved.

The utility model relates to the field of building construction, in particular to a detachable foundation pit supporting inclined strut structure which comprises fender posts arranged on the inner wall of a foundation pit and a basement arranged in the foundation pit, top beams are arranged at the top ends of the fender posts, corbel supports are arranged on a bottom plate of the basement, and the corbel supports are arranged on the bottom plate of the basement. The main supporting piece and the auxiliary supporting piece are connected together; the lower end of the main supporting piece is connected with a bracket support, and the upper end of the auxiliary supporting piece is connected with the top beam. The auxiliary supporting piece comprises an upper auxiliary connecting plate and a lower auxiliary connecting plate, four pieces of angle steel are arranged between the upper auxiliary connecting plate and the lower auxiliary connecting plate in a rectangular array mode, a connecting angle plate is arranged between every two adjacent pieces of angle steel, and a water stop plate is arranged at the position, corresponding to the basement side wall, of each piece of angle steel. By the adoption of the two-section type structure, the structure can be assembled, a supporting system can be rapidly installed and dismantled, the construction period can be prolonged, and the construction cost is reduced.

The utility model provides a kind of aerated concrete batten wall structure and building, including first batten, second batten and third batten;Second batten is located between first batten and third batten, two second battens are arranged in parallel interval, and passage for accommodating pipeline is formed between two second battens;One end of first batten has recess structure, is located at the first end of passage, one end of third batten has protruding structure compatible with recess structure, is located at the second end of passage, and the cross section of protruding structure includes first plane, second plane and third plane connected in turn;Second plane respectively forms obtuse angle with first plane and third plane, and the corner of first batten, second batten and third batten is all provided with cut angle, the cut angle of one end of second batten and the cut angle of first batten form V-shaped groove structure, and the cut angle of other end of second batten and the cut angle of third batten form V-shaped groove structure.It effectively improves the structural stability and integrity of aerated concrete batten.

The invention discloses a continuous reinforced concrete pavement construction device, and relates to the technical field of pavement construction, the continuous reinforced concrete pavement construction device comprises a feeding vehicle, and the feeding vehicle stores concrete and uniformly stirs the concrete; the driving lifting mechanism is arranged on one side of the feeding vehicle; and the transverse pouring device is arranged on the driving lifting mechanism. The feeding vehicle is different from a concrete mixer truck, a tank body of the feeding vehicle does not rotate, a stirring liner net rotates, after mixed raw materials are intensively put into the stirring liner net through a discharging hopper, the stirring liner net in the discharging hopper rotates, and semi-finished products are stirred into concrete. If a precast concrete mode is adopted, the efficiency is low, and the process cost is high, the mode can be directly carried out on a construction site, raw materials are adjusted in proportion and stirred in the stirring liner net, and convenience, rapidness and high continuity are achieved.