44results about How to "Shorten the total construction period" patented technology

The invention provides a construction method of a cone-shaped top structure of a large silo. The construction method comprises the steps of burying embedded parts in the inner wall of the silo wall at the height close to the silo top in the slip form process of the silo wall of the large silo, forming reserved holes in the silo wall above the embedded parts, welding steel corbels on the embedded parts, and then constructing a concrete column, a funnel board and a column top beam in the silo, and burying a foundation bolt in the top of the concrete column, building a scaffold supporting platform on the steel corbels, arranging a silo top formwork support frame on the scaffold supporting platform, and then arranging a cone-shaped shell concrete structure supporting system of the silo top on the silo top formwork support frame, and finally, carrying out pouring. The construction method of the cone-shaped top structure of the large silo is capable of reducing the construction cost and increasing the construction progress, and the construction process is safer and more convenient.

The invention relates to a large prefabricated assembly cap beam with a corbel structure and a construction method. The cap beam consists of members at two outer hanging type cantilever sections and a member in a middle section, wherein the assembly junction surfaces of the two sides of the member in the middle section are respectively provided with a corbel, and laser beam relative position calibrating receiving points are arranged on four corner point positions of the assembly crossing surfaces; a joint part of the member in the middle section and a bridge pier is provided with a vertical connector and a relative position calibrating transmitting point; a connecting part of each of the members at the two outer hanging type cantilever sections and the member in the middle section is in a trapezoid shape, and laser relative position calibrating transmitting points are arranged on the four corner points of the junction surfaces; both ends of a prestressed reinforcement are tensioned by a back tension method to connect into a whole. The large prefabricated assembly cap beam has the advantages that compared with the structure of arranging small shear keys on a plane, the corbel structure has stronger anti-shear capability; the prefabrication construction is convenient, and the refining treatment time of special parts in a member prefabrication process is favorably shortened; in a quantitative production step, the working efficiency is greatly improved, the construction risk is decreased, and a large amount of labor and material resources are reduced.

The invention provides a tube truss manufacture process which comprises the steps as follows: blanking of steel tubes, positioning of intersecting points of tube fitting, welding of tube fitting, calibrating of members, pre-assembling, and disassembling of the pre-assembled truss, wherein all the manufacturing and processing links are carried out in sequence. The manufacture process has the advantages as follows: the assembly precisions of intersecting ends and intersecting holes are high; the size deviation is small; a truss body can be assembled quickly; the workload of calibration is small; formation of physical appearance is good; workload and time for polishing are greatly reduced; the quality of construction and formation can be guaranteed; smoothness and progression of all manufacture links are guaranteed; total construction period is guaranteed; material cost of manufacturing of the tube truss can be saved; inputs of manpower and goods and materials are saved; and economical effects of production are improved.

The invention discloses a method for constructing a soft soil foundation reverse interlayer, which comprises the following steps of: 1. setting an underground enclosing structure in a field to be constructed; 2. carrying out soil excavation, excavating soil to the bottom of a first-floor plate and carrying out the construction of a top-floor structure plate of an underground first floor; 3. carrying out soil excavation, excavating soil to an underground second floor base plate and carrying out the construction of a top-floor structure plate of an underground third floor; 4. by utilizing the maintenance period of the top-floor structure plate of the underground third floor, constructing the top-floor structure plate of the underground second floor; and 5. after the top-floor structure plate of the underground third floor reaches the design strength, sequentially carrying out the construction of other underground lower floor structures according to the steps 3 and 4. By construction through the constructing method, the construction period and can be effectively shortened, the cost is saved, and the economic benefits and the social competitive force of enterprises are improved.

The invention relates to a construction method for simultaneous extension of parallel guide pits into a double-line tunnel for TBM tunneling construction and aims to guarantee simultaneous construction of the double-line tunnel and an I-line tunnel, put into operation at the same time and realize effective shortening of the total construction period of the tunnel and great reduction of the construction cost. The method comprises steps that small-diameter open TBM is utilized for full-section excavation in-advance construction of the parallel guide pits; after lagging behind the tunneling surface of the parallel guide pits about 800m, large-diameter TBM full-section tunneling construction of the I I-line is utilized at the left or right side of the parallel guide pits at 30-50m, and a transverse passage between the parallel guide pits and the I-line tunnel is constructed along the extension direction of the line at intervals; after lagging behind the TBM tunneling surface of the I-linetunnel about 1200 meters, extension construction of the parallel guide pits is carried out, that is, when the parallel guide pits are continuously tunneled without interruption by the small TBM ahead,the borehole-blasting method is utilized to carry out simultaneous digging extension of the constructed parallel guide pits at about 2km lagging behind the tunneling surface of the parallel guide pits, and the double-line tunnel is formed.

The invention discloses an interpenetrating construction effect-raising method of entire cast-in-place outer wall high-rise housing. The method comprises the steps of construction at a main body structure construction layer of the N layer; construction at a dismantling construction layer of the N-1 layer; construction at a propped sealing construction layer of the N-2 layer; construction at an inner wall plate construction layer of the N-3 layer; construction at a drainage installation construction layer of the N-4 layer; construction at a pipeline installation construction layer of the N-5 layer; construction at a ceiling putty construction layer of the N-6 layer; construction at a kitchen and bathroom tiles paving construction layer of the N-7 layer; construction at a step and floor tiles paving construction layer of the N-8 layer; construction at an inner wall face first putty construction layer of the N-9 layer; construction at an inner wall face second putty construction layer ofthe N-10 layer; and construction at a staircase construction layer of the N-11 layer. It is guaranteed that the entire cast-in-place outer wall high-rise housing all kinds of professional type of jobscan be in interspersed operation continuously, so that the total construction time is shortened, the work efficiency is improved, and the refinement level of project management is promoted.

The invention discloses an underpinning structure and an underpinning construction method for shock isolation and reinforcing of an existing building. The underpinning structure comprises an upper structure, a lower structure and a plurality of supporting columns; the upper structure is located on the upper portion of the mounting position of a shock isolation supporting seat of the existing building, and the lower structure is located on the lower portion of the mounting position of the shock isolation supporting seat of the existing building; and the multiple supporting columns are located on the outer side of the mounting position of the shock isolation supporting seat, and the two ends of the multiple supporting columns tightly abut against the upper structure and the lower structure correspondingly. During construction, after the supporting columns abut tightly, column concrete on the mounting position of the shock isolation supporting seat is cut, the shock isolation supporting seat is mounted, gaps between the shock isolation supporting seat and the upper structure as well as the lower structure are filled, grouting and compaction are conducted, and after the concrete strength meets requirements, the supporting columns are removed. Therefore, according to the underpinning structure and the underpinning construction method for shock isolation and reinforcing of the existing building, the underpinning structure utilizes an original structure component, model selection is simple, the underpinning construction method is convenient to construct, and the construction period is short.

The invention belongs to the field of blast furnaces in iron making, and particularly relates to a system and method for cleaning in-furnace waste materials during major overhaul of a large blast furnace. The system includes excavators, roller belt conveyors, spouts and slag receivers. The two excavators are lifted into the furnace from a top manhole, one of the excavators is provided with a hydraulic hammer and used for crushing waste materials, and the other excavator is provided with a bucket shovel and used for loading and transporting the waste materials. One of the roller belt conveyorsis arranged on a blast furnace tuyere platform, and the front end of the roller belt conveyor extends into the furnace from a blast furnace air supply port. A blast furnace cast house platform is provided with the other roller belt conveyor the front end of which is connected to the tail end of the roller belt conveyor on the blast furnace tuyere platform through a spout, and the tail end of whichis connected to the slag receivers on the ground through a spout. The waste materials in the furnace are conveyed through the excavators, the roller belt conveyors, and the spouts, from the blast furnace air supply port to the ground slag receivers, while passing through the tuyere platform and the cast house platform, and therefore manual work is replaced by mechanical operation, the working efficiency is greatly increased, in-furnace waste material cleaning time during major overhaul of the blast furnace roller is effectively shortened, the construction cost is saved, and the blast furnacecan be used for production in advance.

The invention relates to the technical field of building construction, and discloses a spliced aerated concrete batten construction method. The spliced aerated concrete batten construction method comprises the following steps of S1, deepening a construction drawing according to holes needing to be reserved and pre-buried pipelines on aerated concrete battens in building, structure, electrical andequipment pipeline drawings; S2, mounting and splicing the aerated concrete battens while a floor concrete structure is constructed; S3, after floor slab construction is completed, cleaning a floor slab surface, enabling a concrete structure surface making contact with the spliced aerated concrete battens during installation to be smooth, straight and compact, and measuring side lines and controllines of the aerated concrete battens to serve as the installation basis; S4, mounting the spliced aerated concrete battens, and adjusting the installation positions, flatness and perpendicularity ofthe spliced aerated concrete battens; and S5, finishing reserved hole and slab joint treatment. According to the spliced aerated concrete batten construction method, a construction process is simplified, the mechanical construction degree is improved, the total construction period is shortened, and the anti-seismic property is improved.

The invention discloses a combined prefabricated bridge guardrail. The guardrail comprises a concrete anti-collision wall body, a steel structure stand column, a steel anti-collision guardrail, a steel pipe guardrail and a concrete hanging plate, wherein the concrete anti-collision wall body is prefabricated in a factory, and the anti-collision requirement is met. The steel structure stand columnplays a role in fixing of a steel pipe cross beam, and the steel anti-collision guardrail acts as an anti-collision beam, and the steel pipe guardrail is provided with a LED lamp strip for achieving the effect of road illumination. After the concrete anti-collision wall body is installed, a longitudinal seam exists with the side surface of a bridge deck, in order to achieve the whole attractiveness effect, the concrete hanging plate is used for shielding, and meanwhile, the hanging plate plays a role in water dripping. The novel combined bridge guardrail is prefabricated in a factory and installed in a field, meanwhile, a guardrail lamp and the anti-collision guardrail are combined, bridge high-pole lamps and guardrail outer side backpacks are omitted, the whole construction period of a bridge can be shortened, meanwhile, the linear effect of a prefabricated part is more attractive, batch production can be achieved, the bridge guardrail can be suitable for a municipal road viaduct, andthe economic benefit is high.

The invention discloses an alternative construction efficiency improvement method for full cast-in-place outer-wall high-rise housing kitchens and baths. The method includes the following step of installing a main structure construction layer of the kitchens and baths on the N-th floor, a template detaching construction layer of the kitchens and baths on the N-1-th floor, a top supporting and water stopping construction layer of the kitchens and baths on the N-2-th floor, an inner-wall plate construction layer of the kitchens and baths on the N-3-th floor, a water supply and drainage installation layer of the kitchens and baths on the N-4-th floor, a pipeline installation layer of the kitchens and baths on the N-5-th floor, a ceiling putty layer of the kitchens and baths on the N-6-th floor, a wall tile laying layer of the kitchens and baths on the N-7-th floor, a platform and floor tile laying layer of the kitchens and baths on the N-8-th floor, a door frame base layer of the kitchensand baths on the N-9-th floor, and bath equipment of the kitchens and baths on the N-10-th floor. According to the alternative construction efficiency improvement method for the full cast-in-place outer-wall high-rise housing kitchens and baths, alternative continuous operation of each professional work type of the full cast-in-place outer-wall high-rise housing kitchens and baths is ensured; notonly is the total construction period shortened, but also the work efficiency is improved, and the precision level of project engineering management is improved.

The invention discloses a full cast-in-situ outer wall high-rise residential building living room interpenetrating construction efficiency-improving method. The full cast-in-situ outer wall high-riseresidential building living room interpenetrating construction efficiency-improving method comprises the following steps that N layers of living room main body structures are constructed; the N-1 layer is subjected to living room formwork-detaching construction; the N-2 layer is subjected to living room erected roof water-stopping; the N-3 layer is subjected to living room inner wallboard construction; the N-4 layer is subjected to living room water supply and drainage mounting; the N-5 layer is subjected to living room pipeline mounting; the N-6 layer is subjected to living room ceiling puttyconstruction; the N-8 layer is subjected to living room balcony and floor tile laying; the N-9 layer is subjected to living room inner wall surface first-time putty construction; and the N-10 layer is subjected to living room inner wall surface second-time putty construction. According to the full cast-in-situ outer wall high-rise residential building living room interpenetrating construction efficiency-improving method, it is ensured that interpenetrating continuous operation of various work types can be conducted during full cast-in-situ outer wall high-rise residential building living roomconstruction, the total construction period is shortened, the working efficiency is improved, and the refinement level of project engineering management is further promoted.

The invention relates to the field of tunnels and underground engineering, in particular to a construction method of a middle partition of an urban underground comprehensive pipe gallery. The construction method of the middle partition of the urban underground comprehensive pipe gallery includes the following steps that S1, side beam brackets are constructed; and S2, the middle partition is transported and mounted. S1 includes the steps of S1.1, a movable working platform is arranged; S1.2, concrete formworks are arranged; S1.3, a concrete tank car is refit; S1.4, the side beam brackets are cast in place; and S1.5, concrete curing is carried out. S2 includes the steps that S2.1, a temporary bridge is built, wherein the temporary bridge is a steel structure component; S2.2, the middle partition is transported; and S2.3, the middle partition is mounted in place. The construction method is pertinently designed as for various problems in the mounting process of the middle partition of a shield tunnel, construction manners of a single equipment device are integrated and optimized into a set of continuous construction procedures, it is guaranteed that all the procedures are smoothly carried out, all the procedures in construction of the shield tunnel have the possibility of simultaneous execution, the construction total period is shortened while the construction quality is guaranteed, and the operation potential safety hazards are overcome.

The invention provides a pressure rack for rebar-planting. The rack comprises a main longitudinal stressed rod, a support rod, a connection rod and a pressure rod. The top end of the main longitudinal stressed rod is fixedly equipped with an electric hammer. A rod body of the main longitudinal stressed rod is orderly connected with the pressure rod and the connection rod through bolts. The support rod is connected with the pressure rod and the connection rod through the bolts and parallel to the main longitudinal stressed rod. The pressure rack for rebar-planting has following beneficial effects: the rack is utilized on the ground so that rebar-planting can be achieved without climbing objects; rebar-planting can be finished indoors around floors; and the rack has a high safety coefficient and is convenient to operate and is simple in structure.

The invention discloses a method for improving the efficiency of full insertion construction after top sealing of a full cast-in-place outer-wall high-rise residence main body. The method comprises the steps of top sealing of a main body structure, construction of a computer room, removing of a climbing frame and a construction elevator, mounting of an elevator, removing of a tower crane, construction of an outdoor garden, construction of outer wall hanging baskets, construction of a paint surface, storage and mounting, mounting of table faces and lamps, construction of doors and a secondary finishing coat, mounting of wooden floors and mounting of hardware equipment and residential cleaning. According to the method for improving the efficiency of full insertion construction after top sealing of the full cast-in-place outer-wall high-rise residence main body, it is ensured that all the construction work types can conduct continuous insertion operation after top sealing of the full cast-in-place outer-wall high-rise residence main body, the total construction period is shortened, the work efficiency is improved, and the fine level of project engineering management is further improved.