CN116290809A - Modularized construction method for super high-rise pipe well vertical pipe - Google Patents
Modularized construction method for super high-rise pipe well vertical pipe Download PDFInfo
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- CN116290809A CN116290809A CN202310175252.7A CN202310175252A CN116290809A CN 116290809 A CN116290809 A CN 116290809A CN 202310175252 A CN202310175252 A CN 202310175252A CN 116290809 A CN116290809 A CN 116290809A
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- 238000010586 diagram Methods 0.000 claims abstract description 41
- 238000009434 installation Methods 0.000 claims abstract description 29
- 238000012545 processing Methods 0.000 claims abstract description 24
- 238000003466 welding Methods 0.000 claims abstract description 16
- 238000005520 cutting process Methods 0.000 claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 37
- 239000010959 steel Substances 0.000 claims description 37
- 238000003754 machining Methods 0.000 claims description 13
- 238000005516 engineering process Methods 0.000 claims description 10
- 238000003860 storage Methods 0.000 claims description 10
- 210000001503 joint Anatomy 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 229910000746 Structural steel Inorganic materials 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 11
- 238000009417 prefabrication Methods 0.000 abstract description 9
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- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
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- 238000005260 corrosion Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F17/00—Vertical ducts; Channels, e.g. for drainage
- E04F17/08—Vertical ducts; Channels, e.g. for drainage for receiving utility lines, e.g. cables, pipes
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/162—Handles to carry construction blocks
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/18—Adjusting tools; Templates
- E04G21/1841—Means for positioning building parts or elements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
Abstract
The invention discloses a modularized construction method of a super high-rise pipe well riser, which comprises the following steps: cutting, assembling and welding the modularized pipe-group pipe frame according to the BIM deep processing diagram and the assembly diagram, and combining, fixing and installing the pipeline and the pipe frame to finish the prefabrication processing work of the modularized riser pipe group; the transportation of the modularized riser pipe group is completed by the high-efficiency transportation mode of vertical transportation in the pipe well of the crane lifting system through the outer lifting transportation of the tower crane, the floor transportation of the platform truck; and the mounting and positioning work of the modularized tube group is completed by mounting the movable support and adjusting and fixing the movable support. The method combines deepening and prefabrication processing, and meets the processing depth requirement of factory prefabrication; the method is deepened and is actually combined with a construction site, and meets the requirements of construction schemes such as site reservation, pre-embedding, installation and the like.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a modularized construction method for a super high-rise well riser.
Background
Along with the rapid development of the domestic building industry, the trend of industrial prefabrication processing, assembly and modularized construction development is more and more obvious. The domestic super high-rise vertical shaft is conventionally installed by adopting a single layer by layer, a large number of hoisting and welding operations are required to be carried out in a narrow pipeline well, the construction difficulty is high, and the construction work efficiency is low. The super high-rise building is generally positioned in a core urban area, the processing field is limited, the conventional riser installation needs to provide enough fields, corresponding personnel, mechanical equipment and the like are provided, and the processing precision of the parts is poor; the requirements on site construction conditions, weather conditions and the like are high, and the construction period cannot be effectively controlled; the large amount of welding processing operations on site have heavy pollution to water, soil, environment and the like, and green construction is difficult to realize.
Disclosure of Invention
In order to at least partially solve the problems in the prior art, the invention provides a modularized construction method for the super high-rise pipe well riser, which realizes pipelining operation, is not limited by site conditions, and ensures construction quality.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a modularized construction method of a super high-rise pipe well riser comprises the following steps:
firstly, carrying out secondary deepening according to a comprehensive pipe well layout diagram by utilizing a BIM technology, and drawing a pipe well layout diagram of a prefabricated pipe group; drawing a part machining diagram according to the prefabricated pipe group pipe well layout diagram, and manufacturing according to the part machining diagram;
cutting, assembling and welding a pipe rack of the pipe group according to the size and the pipe diameter of the pipe well layout of the prefabricated pipe group, positioning the pipe rack after finishing processing, and arranging a pipe sleeve for sleeving the pipe group on the pipe rack;
step three, installing pipelines in the pipe group on the pipe rack one by one according to a prefabricated pipe group pipe well layout diagram, wherein the pipeline positions correspond to the sleeve positions on the pipe rack one by one;
step four, installing a pipe clamp corresponding to each pipeline on the pipe rack, and ensuring that the installed pipeline is positioned at the center of the sleeve by finely adjusting the position of the pipe clamp;
step five, reserving a tee joint interface on a pipeline according to the arrangement diagram of the prefabricated pipe group pipe well and the requirement;
numbering the assembled modularized pipe group, and carrying out coding storage and transportation on the modularized pipe group by utilizing a two-dimension code technology;
step seven, the modularized pipe group is lifted on site, which comprises the steps of lifting the pipe group to a discharging platform, horizontally transporting in a building and lifting in a pipe well;
step eight, installing a movable support on a floor structure corresponding to the modularized tube group, vertically installing the movable support, butt-jointing and installing a tube rack of the modularized tube group on the movable support, continuously descending the modularized tube group after butt-jointing and installing, adjusting the movable support to be in a horizontal direction, fixing the movable support with the floor structure, and fixing the modularized tube group with the movable support;
and step nine, hoisting adjacent pipe groups into position by adopting the step seven and the step eight, and carrying out pipe group butt joint construction after the adjacent pipe groups are in position.
In the second step, the pipe frame is arranged on the platform in a positioning mode, the bottom surface of the T-shaped tool pair Ji Guanjia is utilized after the pipe frame is arranged in the positioning mode, the T-shaped tool is fixed with the platform, and the relative position of the T-shaped tool and the pipe frame is fixed through a clamp.
In the second step, the pipe frame comprises a section steel framework, a bottom plate and a sleeve, wherein the section steel framework is hollowed out corresponding to the installation part of the pipe group, the bottom plate is welded and fixed at the hollowed-out part, and the sleeve is penetrated and fixed through a hole in the middle of the bottom plate.
In the fourth step, the pipe clamp is in a clamping mode, two sides of the pipe clamp are connected through bolts, the pipe clamp is fastened, and the pipe clamp is connected with the sleeve through bolts.
As a further scheme of the invention, in the step six, plastic plugs are arranged at the two ends of the pipeline and at the positions of the three-way connectors, so that finished product protection is achieved.
In a seventh step, as a further aspect of the present invention, the lifting of the tube group to the unloading platform includes: lifting the tower crane outside the building with the floor structure in place, lifting the tower crane by utilizing a prefabricated lifting lug on a modularized pipe group pipe frame, lifting the tower crane to be in place above a telescopic unloading platform of a tower equipment floor through the ground, moving the platform truck to the unloading platform at the moment, connecting one end of a chain block to a built-in lifting point of the unloading platform, connecting the other end of the chain block to the platform truck, and fixing the platform truck; after the modularized tube group stably falls on the platform vehicle, the steel wire rope for hoisting the tower crane is loosened, and then the chain block is pulled, so that the modularized tube group is completely put into a building by matching with transportation personnel.
As a further aspect of the present invention, in step seven, the horizontal transportation in the building includes: after the modularized pipe group enters a building, a preformed hole is formed in a structural steel beam of a floor structure in place or an I-shaped steel clamp is additionally arranged, a chain block is arranged, the modularized pipe group is placed on a prepared ground tank by the chain block, and then the modularized pipe group is transported to a hoisting designated position or a floor storage position by the ground tank, so that the in-building transportation and storage are completed.
In a seventh aspect of the present invention, hoisting in a pipe well includes: the modularized pipe group is hoisted downwards from each equipment layer by adopting segmented hoisting according to the equipment layers, in order to ensure the space for the modularized pipe group to vertically stand, a traveling crane hoisting system is arranged in a pipe well of two layers above the equipment layers, the modularized pipe group hoisting work is inserted in advance under the condition that one layer of corresponding floor inner pipe well steel girder on the equipment layers is not done, and the steel girder installation work is carried out after the modularized pipe group hoisting is completed.
The invention adopts the technical proposal, which has the following beneficial effects:
(1) Performing secondary deepening according to a comprehensive pipe well layout diagram by using a BIM technology, and drawing a pipe well layout diagram of the prefabricated pipe group; and drawing a part machining diagram according to the prefabricated pipe group pipe well layout diagram, and manufacturing according to the part machining diagram. The deepening and the prefabrication processing are combined, and the processing depth requirement of factory prefabrication is met; the method is deepened and is actually combined with a construction site, and meets the requirements of construction schemes such as site reservation, pre-embedding, installation and the like.
(2) The traditional pipe well is used for single pipeline construction, the field operation is scattered, the operation condition is poor, the prefabricated combined vertical pipe is changed, the field scattered operation is concentrated to a processing plant, the pipelining operation is realized, the restriction of the field condition is avoided, and the construction quality is ensured;
(3) The precision and quality of the vertical pipe combined prefabricated component are effectively improved by adopting a modularized prefabricated construction technology: the processing conditions, the detection means and the modification convenience of the prefabricated riser processing factory are all superior to those of the field operation, so that the various sizes, the shape and position precision, the appearance attractiveness and the cleanliness of the combined member are all higher than those of the field operation.
(4) The method of installing the crane lifting system in the core tube is adopted to integrally lift the modular vertical pipe in the tubular well, so that the number of overhead operations is reduced, and the operation danger is effectively reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a process flow diagram of a modular construction method for a super high-rise tubular well riser in an embodiment of the invention.
Fig. 2 is a station calibration schematic.
Fig. 3 is a schematic view of the tube rack in place.
Fig. 4 is a schematic view of a pipe installation.
FIG. 5 is a schematic diagram of a pipe strap installation.
Fig. 6 is a schematic illustration of a three-way reservation for a pipe branch.
FIG. 7 is a schematic diagram of a combined pipeline code storage and transportation.
Fig. 8 is a schematic diagram of a crane handling system.
Fig. 9 is a schematic view of movable bracket installation.
Fig. 10 is a schematic view of the movable bracket fixation.
FIG. 11 is a schematic view of a tube set installation.
The correspondence of the marks in the figures is as follows:
1-a platform; 2-pipe frames; 21-a section steel skeleton; 22-a bottom plate; 23-sleeve; 3-piping; 4-a pipeline installation vehicle; 5-pipe clamps; 6-three-way interface; 7-a plastic plug; 8-a crane suspension system; 81-hard protection; 82-track beams; 83-crane; 84-system lifting device; 9-a movable bracket; 10-structural steel beams.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
Hereinafter, an embodiment of the present invention will be described in accordance with its entire structure.
The embodiment of the invention relates to a modularized construction method for a super high-rise pipe well riser, which comprises the following technical principles:
(1) Cutting, assembling and welding the modular pipe rack of the riser pipe according to the BIM deep processing diagram and the assembly diagram, and combining, fixing and installing the pipeline and the pipe rack to finish the prefabrication processing work of the modular riser pipe.
(2) And the transportation of the modularized riser pipe group is completed by the high-efficiency transportation mode of vertical transportation in the pipe well of the crane lifting system through the outer lifting transportation of the tower crane, the floor transportation of the platform truck.
(3) And the mounting and positioning work of the modularized tube group is completed by mounting the movable support and adjusting and fixing the movable support.
Referring to fig. 1, the specific construction process flow of the modularized construction method of the super high-rise pipe well riser of the invention is as follows:
1) Station calibration
Performing secondary deepening according to a comprehensive pipe well layout diagram by using a BIM technology, and drawing a pipe well layout diagram of the prefabricated pipe group; and drawing a part machining diagram according to the prefabricated pipe group pipe well layout diagram, and manufacturing according to the part machining diagram. The stations are calibrated according to the dimensions provided by the BIM prefabricated tube group well layout, so that the machining dimensions are accurate, as shown in figure 2.
2) Pipe support manufacturing, installing and fixing
Cutting, assembling and welding the pipe rack of the pipe group according to the layout size and the pipe diameter of the pipe well of the BIM prefabricated pipe group. And (5) positioning after the pipe frame is machined.
As shown in fig. 3, the pipe rack 2 comprises a section steel framework 21, a bottom plate 22 and a sleeve 23, wherein the section steel framework 21 is hollowed out corresponding to the installation part of the pipe group, the bottom plate 22 is welded and fixed at the hollowed-out part, and a hole is formed in the middle of the bottom plate 22 for the sleeve to penetrate and fix.
According to the prefabricated riser module unit drawing recheck mounting platform length, measure the relative distance between the pipe racks with the steel tape to draw the pipe rack location on platform 1, transport pipe rack 2 to the installation station, utilize T word mounting tool pair Ji Guanjia bottom surface after pipe rack 2 is taken one's place, screw up T word instrument and platform fixed with anchor clamps fixed T word instrument and pipe rack relative position, adjacent pipe rack interval allowable deviation + -5 mm guarantees that the pipe rack does not have the displacement in the pipeline installation, guarantees the installation accuracy.
The sleeve 23 and the bottom plate 22 are welded in a sleeved mode, the pipeline is cut according to a sleeve 23 machining diagram, the sleeve 23 after cutting is machined by a numerical control end face lathe, the contact area of the sleeve 23 and the bottom plate 22 is increased, and fixing is firmer. The mounting position of the sleeve 22 should not deviate more than + -3 mm, and the height of the sleeve 22 should not deviate more than + -3 mm.
Cutting the profile steel according to the pipe frame processing diagram, and welding and assembling the profile steel into the profile steel framework.
Inputting a pipe frame bottom plate machining diagram into a numerical control plasma cutting machine, automatically cutting a steel plate to form a hole, and checking the steel pipe frame according to the size of the steel plate after cutting.
The pipe rack reinforcing ribs are machined by utilizing the steel plates remained after the pipeline bottom plates are cut, so that materials can be saved.
And welding the bottom plate of the pipe frame and the profile steel framework which are qualified in inspection, wherein the bottom surface of the pipe frame is fully welded.
After the pipe frame is completed, rust removal and paint brushing treatment is carried out on the bottom surface of the pipe frame and the part of the bottom surface leaked by the sleeve.
3) Pipeline installation
And installing the pipelines on the pipe frame one by one according to the BIM pipe well layout diagram, wherein the positions of the pipelines correspond to the positions of the pipe frame one by one. The pipeline is processed before being installed, and the processing flow is as follows: cutting a pipeline, cleaning a pipe orifice, chamfering, aligning and checking flatness, spot-welding and fixing a butt joint, correcting flatness, welding a pipeline, checking a welding line and preventing corrosion.
And the pipeline is fed, welding seams, flanges and other connecting pieces are arranged at the positions convenient to overhaul, the site subsequent construction positions are reserved, and the wall is not suitable to be clung to the wall. The position of the opening must not be at the welding line and the edge of the pipeline, and the cut semi-finished pipeline should be marked according to the pipe group and the system, as shown in fig. 4.
4) Pipe strap installation adjustment
The height of the self-made pipeline installation vehicle 4 is adjusted to the elevation of the section of the sleeve 23 of the pipeline 3 and the pipe frame 2, and the pipeline with rust removal and painting procedures is moved to an assembly station by using a travelling crane. Is placed on a pipeline installation vehicle. And penetrating the pipeline into the sleeve according to the prefabricated pipe group unit structural drawing, filling a batten at a gap between the pipeline and the sleeve after the pipeline is in place so as to play a role in temporarily fixing the pipeline, installing the clamp corresponding to the pipeline, firstly installing the clamp below the pipeline, withdrawing the pipeline installation vehicle and the batten after installation and fastening, and completing the installation of the clamp above.
The pipe clamp 5 is arranged on the support, the pipe clamp is in a clamping mode, two sides of the pipe clamp are connected through bolts, and the pipe clamp is fastened. The clamping steel plate is connected with the prefabricated sleeve steel plate through bolts. The clamp steel plate uses an adjustable bolt hole to ensure that the installed pipeline is positioned in the center of the sleeve, as shown in fig. 5.
Through the position of fine setting pipe strap, guarantee that the pipeline position after the installation is located the sleeve pipe center. And (5) fastening the bolt after adjusting the position of the pipe clamp.
5) Pipe branch reservation
According to the comprehensive layout of the pipe well riser BIM, a tee joint 6 is reserved at the position where the riser tee is required to be reserved, as shown in figure 6.
6) Pipeline label packaging transportation
Numbering the assembled pipe group, carrying out coding storage and transportation on the prefabricated modules by utilizing a two-dimension code technology, improving traceability and management efficiency of modularized riser information, and ensuring that all prefabricated riser units are assembled in order strictly according to the numbers of the prefabricated riser units. Plastic plugs 7 are added at the two ends of the pipeline and the position of the three-way throwing opening, so that finished product protection is finished, and the finished product protection is shown in figure 7.
The modularized riser pipe group is subjected to self-inspection before leaving the factory, then is subjected to inspection and acceptance inspection, and is allowed to leave the factory for transportation after being accepted by inspection, and all welding seams are subjected to in-factory flaw detection tests.
In the off-site transportation process, the protection of finished products is enhanced, the pipe frame of the modular combined vertical pipe is fixed, and a protection pad is paved under the modular combined vertical pipe, so that the phenomena of collision, paint dropping and the like in the transportation engineering are avoided.
7) Pipeline on-site lifting and transporting device
(1) Pipe group lifting to discharging platform
The tower crane is adopted to hoist the tower outside the building, the prefabricated lifting lug on the modularized prefabricated vertical pipe frame is utilized to hoist the tower crane to the upper part of the telescopic unloading platform of the equipment layer of the tower through the ground, the platform truck is moved to the unloading platform at the moment, one end of the chain is connected to a built-in lifting point of the unloading platform, and the other end of the chain is connected with the platform truck to fix the vehicle. And loosening the hoisting steel wire rope after the modularized prefabricated vertical pipe stably falls on the platform truck. And then pulling the chain block to match with transportation personnel to completely follow the prefabricated pipe group into the building.
(2) Horizontal transport in building
After the prefabricated riser pipe group enters a building, a preformed hole in a structural steel beam or an I-shaped steel clamp is additionally arranged, a chain block is arranged, the prefabricated riser pipe is placed on a prepared ground tank by the chain block, and then the prefabricated riser pipe is transported to a hoisting designated position or a floor storage position by the ground tank, so that the in-building transportation and storage are completed.
(3) Hoisting in pipe well
The prefabricated riser pipe group adopts segmentation hoist and mount according to the equipment layer, and hoist and mount downwards from every equipment layer, in order to guarantee the space that prefabricated pipe group vertically erected, driving handling system installs in the pipe shaft of two-layer more than the equipment layer, should insert prefabricated pipe group hoist and mount work in advance under the condition that the one deck corresponds floor inner tube shaft girder steel not done on the equipment layer, carries out girder steel installation work after prefabricated pipe group hoist and mount is accomplished.
Referring to fig. 8, the crane system 8 is composed of a hard guard 81, a track beam 82, a crane 83, a system lifting device 84, a control system and the like, wherein the hard guard 81 is a supporting structure when the whole crane system is lifted, and is also a supporting structure when the crane system is operated, the track beam 82 is arranged below the hard guard 81, the crane 83 moves along the bottom of the track beam, the system lifting device 84 can adopt a winch and is installed below the hard guard 81, and the control system is also installed below the hard guard 81 and is used for controlling the system lifting device 84 and the crane 83 to operate. After the whole system is lifted to a specified position through a synchronous winch arranged on the bottom layer of the hard protection 81, the support girder is connected with a bracket which is arranged in advance on a pipe well core barrel steel girder embedded part by adopting a high-strength bolt, so that the system is fixed on a core barrel wall body. After the components in the stage are hoisted, the system starts to be installed and fixed next time, and the system is circularly reciprocated to finish the installation operation of the core bobbin well riser module tube group. The top of the hard protective frame is fully paved by adopting patterned steel, and the part close to the wall body is sealed by adopting a turning plate and sealing rubber, so that the aim of safety protection is achieved.
After the platform truck is used for transporting the modular prefabricated vertical pipe to a specified position of the vertical pipe well, the crane lifting system is used for lifting the modular vertical pipe, the crane beam and the electric hoist are controlled to operate, and the lifting hook is adjusted to a proper position to lift the component. The hoisting operation process is as follows:
(1) the prefabricated modularized pipe group is provided with two hanging points (the position about 1.5 meters away from the pipe head), and after the prefabricated pipe group is horizontally transported to the appointed hanging position at the edge of the pipe well by utilizing a travelling crane hanging point and a platform truck, the lifting hooks are reliably connected with the two hanging points of the pipe group respectively.
(2) The hoisting point simultaneously receives the rope to enable the modularized pipe group to move obliquely upwards in the pipe well, and the crane hoist is operated to move horizontally into the pipe.
(3) And after about 3/4 of the modularized pipe set enters the pipe well, the crane is used for hoisting and winding the rope, and the pipe set is slowly erected.
(4) After the modularized pipe group is vertically stable, the pipe group is moved to a position by the crane, slowly falls to a position 1 m away from the position layer to stop, a crane worker adjusts on the position layer, the pipe group is prevented from touching a wall and a steel beam, a lifting rope is loosened by the crane lifting point, and the pipe group vertically falls.
8) Pipe in-place installation
(1) Tube set adjustment in place
And slowly lowering the combined vertical pipe module when the pipe frame of the modularized prefabricated combined vertical pipe is about one meter away from the corresponding floor structure in place, and pre-adjusting the module vertical pipe according to the fixed auxiliary line drawn on the steel structure.
(2) Movable support mounting
After the pre-adjustment is in place, an operator rapidly completes the butt joint installation of the movable support 9 which is processed in advance and the pipe rack 2. The movable support 9 is vertically installed, and only the middle bolt of the movable support is required to be installed, so that the hoisting space of the vertical pipe group is ensured, as shown in fig. 9.
(3) Movable support is fixed
And after the bracket is installed, continuing to descend the pipe group, and adjusting the modularized pipe group according to the solid auxiliary line drawn on the steel structure. After being adjusted in place, the movable support 9 is adjusted to the horizontal direction, all connecting bolts are fastened, and the movable support 9 and the steel beam 10 are fully welded and fixed; after confirming that the riser module tube frame 2 and the movable support 9 are fixed firmly, the lifting hook is loosened to lift the next group of riser modules, as shown in fig. 10.
9) Tube set butt joint
And hoisting the lower riser pipe group in place in the same way, and arranging a welder to weld the butt joint pipe group after the adjacent pipe groups are in place. And welding two groups of pipelines in opposite openings, performing self-inspection after the modular prefabricated vertical pipes are installed, and then reporting and supervising and checking and accepting by related quality inspection personnel to form quality inspection and acceptance data. The butt welded seam should also be subjected to ultrasonic flaw detection as shown in fig. 11.
The modularized construction method of the super high-rise pipe well riser has the following advantages:
(1) Performing secondary deepening according to a comprehensive pipe well layout diagram by using a BIM technology, and drawing a pipe well layout diagram of the prefabricated pipe group; and drawing a part machining diagram according to the prefabricated pipe group pipe well layout diagram, and manufacturing according to the part machining diagram. The deepening and the prefabrication processing are combined, and the processing depth requirement of factory prefabrication is met; the method is deepened and is actually combined with a construction site, and meets the requirements of construction schemes such as site reservation, pre-embedding, installation and the like.
(2) The traditional pipe well is used for single pipeline construction, the field operation is scattered, the operation condition is poor, the prefabricated combined vertical pipe is changed, the field scattered operation is concentrated to a processing plant, the pipelining operation is realized, the restriction of the field condition is avoided, and the construction quality is ensured;
(3) The precision and quality of the vertical pipe combined prefabricated component are effectively improved by adopting a modularized prefabricated construction technology: the processing conditions, the detection means and the modification convenience of the prefabricated riser processing factory are all superior to those of the field operation, so that the various sizes, the shape and position precision, the appearance attractiveness and the cleanliness of the combined member are all higher than those of the field operation.
(4) The method of installing the crane lifting system in the core tube is adopted to integrally lift the modular vertical pipe in the tubular well, so that the number of overhead operations is reduced, and the operation danger is effectively reduced.
Although embodiments of the invention have been shown and described, the detailed description is to be construed as exemplary only and is not limiting of the invention as the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples, and modifications, substitutions, variations, etc. may be made in the embodiments as desired by those skilled in the art without departing from the principles and spirit of the invention, provided that such modifications are within the scope of the appended claims.
Claims (8)
1. The modularized construction method of the super high-rise pipe well riser is characterized by comprising the following steps of:
firstly, carrying out secondary deepening according to a comprehensive pipe well layout diagram by utilizing a BIM technology, and drawing a pipe well layout diagram of a prefabricated pipe group; drawing a part machining diagram according to the prefabricated pipe group pipe well layout diagram, and manufacturing according to the part machining diagram;
cutting, assembling and welding a pipe rack of the pipe group according to the size and the pipe diameter of the pipe well layout of the prefabricated pipe group, positioning the pipe rack after finishing processing, and arranging a pipe sleeve for sleeving the pipe group on the pipe rack;
step three, installing pipelines in the pipe group on the pipe rack one by one according to a prefabricated pipe group pipe well layout diagram, wherein the pipeline positions correspond to the sleeve positions on the pipe rack one by one;
step four, installing a pipe clamp corresponding to each pipeline on the pipe rack, and ensuring that the installed pipeline is positioned at the center of the sleeve by finely adjusting the position of the pipe clamp;
step five, reserving a tee joint interface on a pipeline according to the arrangement diagram of the prefabricated pipe group pipe well and the requirement;
numbering the assembled modularized pipe group, and carrying out coding storage and transportation on the modularized pipe group by utilizing a two-dimension code technology;
step seven, the modularized pipe group is lifted on site, which comprises the steps of lifting the pipe group to a discharging platform, horizontally transporting in a building and lifting in a pipe well;
step eight, installing a movable support on a floor structure corresponding to the modularized tube group, vertically installing the movable support, butt-jointing and installing a tube rack of the modularized tube group on the movable support, continuously descending the modularized tube group after butt-jointing and installing, adjusting the movable support to be in a horizontal direction, fixing the movable support with the floor structure, and fixing the modularized tube group with the movable support;
and step nine, hoisting adjacent pipe groups into position by adopting the step seven and the step eight, and carrying out pipe group butt joint construction after the adjacent pipe groups are in position.
2. The modular construction method of the super high-rise pipe well riser according to claim 1, wherein in the second step, the pipe frame is arranged on the platform in a positioning mode, the bottom surface of the Ji Guanjia pair of T-shaped tools is utilized after the pipe frame is arranged in the positioning mode, the T-shaped tools are fixed with the platform, and the relative positions of the T-shaped tools and the pipe frame are fixed through clamps.
3. The modular construction method of the super high-rise pipe well riser according to claim 1, wherein in the second step, the pipe frame comprises a section steel framework, a bottom plate and a sleeve, the section steel framework is hollowed out corresponding to the installation position of the pipe group, the bottom plate is welded and fixed at the hollowed-out position, and an opening is formed in the middle of the bottom plate for the sleeve to penetrate and fix.
4. The modular construction method of the super high-rise pipe well riser according to claim 3, wherein in the fourth step, the pipe clamp is in a clamp mode, two sides of the pipe clamp are connected through bolts, the pipeline is fastened, and the pipe clamp is connected with the sleeve through bolts.
5. The modular construction method of the super high-rise pipe well riser according to claim 1, wherein in the sixth step, plastic plugs are arranged at two ends of the pipeline and at the positions of the three-way joints, and finished product protection is achieved.
6. The modular construction method of the super high-rise pipe well riser according to claim 1, wherein in the seventh step, the hoisting of the pipe group to the unloading platform comprises: lifting the tower crane outside the building with the floor structure in place, lifting the tower crane by utilizing a prefabricated lifting lug on a modularized pipe group pipe frame, lifting the tower crane to be in place above a telescopic unloading platform of a tower equipment floor through the ground, moving the platform truck to the unloading platform at the moment, connecting one end of a chain block to a built-in lifting point of the unloading platform, connecting the other end of the chain block to the platform truck, and fixing the platform truck; after the modularized tube group stably falls on the platform vehicle, the steel wire rope for hoisting the tower crane is loosened, and then the chain block is pulled, so that the modularized tube group is completely put into a building by matching with transportation personnel.
7. The modular construction method for a super high-rise well riser according to claim 1, wherein in the seventh step, the horizontal transportation in the building comprises: after the modularized pipe group enters a building, a preformed hole is formed in a structural steel beam of a floor structure in place or an I-shaped steel clamp is additionally arranged, a chain block is arranged, the modularized pipe group is placed on a prepared ground tank by the chain block, and then the modularized pipe group is transported to a hoisting designated position or a floor storage position by the ground tank, so that the in-building transportation and storage are completed.
8. The modular construction method of a super high-rise pipe well riser according to claim 1, wherein in the seventh step, the hoisting in the pipe well comprises: the modularized pipe group is hoisted downwards from each equipment layer by adopting segmented hoisting according to the equipment layers, in order to ensure the space for the modularized pipe group to vertically stand, a traveling crane hoisting system is arranged in a pipe well of two layers above the equipment layers, the modularized pipe group hoisting work is inserted in advance under the condition that one layer of corresponding floor inner pipe well steel girder on the equipment layers is not done, and the steel girder installation work is carried out after the modularized pipe group hoisting is completed.
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| CN202310175252.7A CN116290809A (en) | 2023-02-28 | 2023-02-28 | Modularized construction method for super high-rise pipe well vertical pipe |
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| CN202310175252.7A CN116290809A (en) | 2023-02-28 | 2023-02-28 | Modularized construction method for super high-rise pipe well vertical pipe |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116956419A (en) * | 2023-07-26 | 2023-10-27 | 中建安装集团有限公司 | Method for designing and building fabricated high-rise pipeline module |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116956419A (en) * | 2023-07-26 | 2023-10-27 | 中建安装集团有限公司 | Method for designing and building fabricated high-rise pipeline module |
| CN116956419B (en) * | 2023-07-26 | 2024-03-15 | 中建安装集团有限公司 | Method for designing and building fabricated high-rise pipeline module |
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