CN105019653B - Prefabricated assembled concrete underflow pumping plant construction method - Google Patents
Prefabricated assembled concrete underflow pumping plant construction method Download PDFInfo
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- CN105019653B CN105019653B CN201410172217.0A CN201410172217A CN105019653B CN 105019653 B CN105019653 B CN 105019653B CN 201410172217 A CN201410172217 A CN 201410172217A CN 105019653 B CN105019653 B CN 105019653B
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Abstract
The present invention relates to metallurgical mine project underflow construction of pumping station.A kind of prefabricated assembled concrete underflow pumping plant construction method, including precast concrete wall panel is made in factory process, built-in fitting and suspension hook that design is specified are buried in concrete；After excavation of foundation pit is finished at the scene, the first layer of pouring construction underflow pumping plant reinforced concrete circular raft foundation reserves the enough joint bars and spacer bar of vertical extension according to design drawing；Prefabricated concrete panel is installed into formation tubular wall in place；The grouting material of foaming and intumescing after high-pressure slip-casting is used to carry out the closure Anti-seeping technology of edge joint position between wallboard；The second layer of pouring construction underflow pumping plant circle raft foundation；After the circular raft foundation construction of underflow pumping plant is finished, the pouring construction that scaffold carries out pumping plant top rebars concrete circular top plate is set up；Underflow construction of pumping station carries out the backfilling of earthwork construction of pumping plant periphery after finishing, and is backfilling and compacted.The present invention can shorten construction period, reduce cost.
Description
Technical field
The present invention relates to metallurgical mine project underflow construction of pumping station, more particularly to a kind of prefabricated assembled concrete structure bottom
Flow pumping plant.
Background technology
Large-scale concentration basin is the visual plant in metallurgical mine project, and its main structure body is generally comprised：Underflow pumping plant, outlet
Vestibule and the part of concentration basin pond body three.And underflow pumping plant generally uses monolithic reinforced concrete structure, it is necessary to which a large amount of scenes are applied
Workman person carries out reinforcing bar colligation, formwork and concreting and maintenance work.Especially large-scale concentration basin, underflow pumping plant it is mixed
Solidifying soil quantities is big, and long construction period, cost is higher.
To the west of exemplified by Australia's SINO IRON iron ore project ore dressing area 90m diameter console mode Tailing thickenings pond, Tailing thickening pond is set
Count diameter 90m（2）, the design of former underflow pumping plant is using rectangle monolithic reinforced concrete structure（Long 67m × wide by 10.5 ~ 31,
41m × high 11.7m）, back-plane design thickness be 2.0m, side wall design thickness be 1.0m ~ 1.5m, top plate design thickness be 0.7m ~
2.5m, deck-molding 1.4m ~ 3.2m, 2 underflow pumping plant reinforced concrete construction total amounts are 2.35 ten thousand m3, quantities is extremely great.In advance
Meter is about 7 ~ 9 months in Australia construction period.According to the local labour cost in Australia expensive actual conditions extremely, if according to steel
The design and construction technology of tendon concrete structure, only 2 2.35 ten thousand m3The underflow construction of pumping station total cost of cast-in-place concrete structure
Will be more than 65,000,000 Australian Dollars.
The content of the invention
Present invention seek to address that there is provided a kind of prefabricated assembled concrete underflow pumping plant construction method for above mentioned problem.This hair
It is bright to greatly shorten construction period, and reduce cost.
In order to solve the above-mentioned technical problem, a kind of prefabricated assembled concrete underflow pumping plant construction method, including following step
Suddenly:
Step one, precast concrete wall panel is made in factory process according to design drawing, design is buried in concrete
The built-in fitting and suspension hook specified；Prefabricated panel presentation quality, appearance and size, protective layer thickness and compression strength are intended to meet design
It is required that, and the prefabricated panel that making is finished is transported to erecting bed；
Step 2, at the scene by excavation of foundation pit, after excavation of foundation pit is finished, pouring construction underflow pumping plant reinforced concrete circular
The first layer of raft foundation, the enough joint bars and spacer bar of vertical extension are reserved according to design drawing；
Step 3, installs in place, using connection structure using hanging device by the prefabricated underflow pumping plant concrete panel of burst
Part carries out the splicing connection between wallboard, forms tubular wall；Strict control installation accuracy, it is ensured that prefabricated panel and circular raft plate base
Combined between plinth tight；After prefabricated panel is all installed, the grouting material of foaming and intumescing after high-pressure slip-casting is used between wallboard
Carry out the closure Anti-seeping technology of edge joint position；
Step 4, confirms that prefabricated panel is respectively mounted in place accurate, after connection sealing is tight, pouring construction underflow pumping plant is circular
The second layer of raft foundation；
Step 5, after the circular raft foundation construction of wait underflow pumping plant is finished, sets up scaffold and carries out pumping plant top rebars
The pouring construction of concrete circular top plate, concrete roof must reach removes lower support template and corresponding again after design strength
Scaffold；
Step 6, underflow construction of pumping station carries out the backfilling of earthwork construction of pumping plant periphery after finishing, tubular is surrounded during backfill operation
Wall is symmetrically synchronously backfilling and compacted, it is ensured that tubular wall uniform force, it is ensured that integrally-built stability.
Described prefabricated assembled concrete underflow pumping plant construction method, the connecting elements of the prefabricated panel includes two
Part, one is the built-in fitting for being embedded in precast concrete wall panel top edge, and semi-enclosed can and one are welded into by steel plate
Steel-pipe welding is constituted；Another is the connector of two blocks of wallboards, is made up of one block of steel plate with two steel-pipe weldings；Adjacent two pieces of walls
After plate lifting is in place, in the sleeve that two steel pipes are inserted in two neighboring wallboard top edge built-in fitting, that is, completes connection and install.
Present invention optimizes the structure type of underflow pumping plant, by taking the SINO projects as an example, set to all in underflow pumping plant
It is standby to be arranged, the position of pump is laid out again on the premise of satisfaction uses functional requirement, around central tube arrangement
Equipment, reduces unnecessary space waste, and compact layout is changed into underflow pumping plant directly by cast-in-situ steel reinforced concrete rectangular configuration
Footpath 16.9m, the prefabricated assembled concrete tubular construction highly for 8.44m, wherein bottom plate thickness 1.1m~1.45m, wall are thick
0.4m, top plate thickness 0.47m~1.0m.Bottom plate and top plate are monolithic reinforced concrete structure, and wall is by 17 prefabricated assembled steel
Tendon concrete structure is constituted.Wallboard lower edge reserves positioning hole, is accurately positioned when being easily installed；Wallboard top edge is pre-buried and top
The reinforcing bar of connection and Heave Here, facilitate lifting operation.By the present invention in that replacing cast-in-place mixed with prefabricated assembled concrete structure
Xtah Crude Clay structure form, is greatly reduced the construction volume of field cast-in-place concrete, can shift to an earlier date prefabricated in processing factory's progress structure
Make, both shorten the construction period, site operation intensity can be reduced again, construction costs is significantly reduced, while environmental pollution is reduced,
Meet the development trend of energy-conserving and environment-protective.
Embodiment
Below, with specific implementation method, the present invention is further illustrated：A kind of prefabricated assembled concrete of the present invention
Underflow pumping plant construction method
(1) the thick bottom plates of underflow pump chamber 1.1m~1.45m are poured in two times.First layer first pours the thick bottom plates of 0.5m, and pre-buried
Diameter 24mm wallboard spacer bars, can install to wallboard and carry out precise positioning, facilitate wallboard lifting construction.
(2) 17 precast concrete wall panels, monolithic prefabricated panel weight about 24t are installed.Using connecting elements by wallboard
Edge links together.
(3) after wallboard is all installed, the bottom plate that second layer residual thickness is 0.6m~0.95m is poured.Such a design
With construction method can ensure precast concrete wall panel combined with cast-in-place concrete bottom plate tightly, reasonable stress, it is ensured that pump chamber wall
Body lower end obtains enough horizontal supporting forces to bear the lateral pressure outside wall.
(4) after bottom pouring construction is finished, watertight grouting drain process is carried out to prefabricated panel seam crossing.What this project was used
It is a kind of grouting material of foaming and intumescing after high-pressure slip-casting, is first blocked wall seam both sides with template, then using fills
Equipment is starched by grouting material high pressure injection wall body seam.Construction finishes rear preventing water leakage and worked well.
(5) set up full hall scaffold, formwork and cast-in-situ steel reinforced concrete pump chamber top plate, top thickness be 470mm ~
1000mm, one-piece casting weight about 420t, height are about 7m, and scaffold building must assure that safety.
The connecting elements of the prefabricated panel includes two parts, and one is embedded in precast concrete wall panel top edge
Built-in fitting, semi-enclosed 243mm*105mm*50mm can and DN80*125 steel pipe are welded into by the thick steel plates of 10mm
It is welded to form；Another is the connector of two blocks of wallboards, by one piece of 456mm*100mm*32mm steel plate and two DN65*100
Steel-pipe welding composition.
After adjacent two blocks of wallboards lifting is in place, two DN65*100 of connector steel pipe is inserted on two neighboring wallboard
In the sleeve of edge built-in fitting, that is, complete connection and install.Such a design and installation is easily and fast.
After whole prefabricated panels are installed, connecting elements is cast in by the roof support with reinforced concrete of branch module and cast-in-situ pump chamber
In concrete roof, it is ensured that connecting elements will not loose or dislocation.
Claims (2)
1. a kind of prefabricated assembled concrete underflow pumping plant construction method, it is characterised in that comprise the following steps:
Step one, precast concrete wall panel is made in factory process according to design drawing, design is buried in concrete and is specified
Built-in fitting and suspension hook；Prefabricated panel presentation quality, appearance and size, protective layer thickness and compression strength are intended to meet to design and wanted
Ask, and the prefabricated panel that making is finished is transported to erecting bed；
Step 2, at the scene by excavation of foundation pit, after excavation of foundation pit is finished, pouring construction underflow pumping plant reinforced concrete circular raft plate
The first layer on basis, the enough joint bars and spacer bar of vertical extension are reserved according to design drawing；
Step 3, is installed in place by the prefabricated underflow pumping plant concrete panel of burst using hanging device, is entered using connecting elements
Splicing connection between row wallboard, forms tubular wall；Strict control installation accuracy, it is ensured that prefabricated panel and circular raft foundation it
Between combine it is tight；After prefabricated panel is all installed, the grouting material of foaming and intumescing after high-pressure slip-casting is used to carry out between wallboard
The closure Anti-seeping technology of edge joint position；
Step 4, confirms that prefabricated panel is respectively mounted in place accurate, after connection sealing is tight, pouring construction underflow pumping plant circle raft plate
The second layer on basis；
Step 5, after the circular raft foundation construction of wait underflow pumping plant is finished, sets up scaffold and carries out pumping plant top rebars coagulation
The pouring construction of native circular top plate, concrete roof must reach removes lower support template and corresponding pin again after design strength
Hand cradle；
Step 6, underflow construction of pumping station carries out the backfilling of earthwork construction of pumping plant periphery after finishing, tubular wall is surrounded during backfill operation
It is symmetrical to be synchronously backfilling and compacted, it is ensured that tubular wall uniform force, it is ensured that integrally-built stability.
2. prefabricated assembled concrete underflow pumping plant construction method according to claim 1, it is characterised in that described prefabricated
The connecting elements of wallboard includes two parts, and one is the built-in fitting for being embedded in precast concrete wall panel top edge, is welded by steel plate
It is connected into semi-enclosed can and a steel-pipe welding is constituted；Another is the connector of two blocks of wallboards, by one block of steel plate and two
Steel-pipe welding is constituted；After adjacent two blocks of wallboards lifting is in place, two steel pipes are inserted in two neighboring wallboard top edge built-in fitting
In sleeve, that is, complete connection and install.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410172217.0A CN105019653B (en) | 2014-04-28 | 2014-04-28 | Prefabricated assembled concrete underflow pumping plant construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410172217.0A CN105019653B (en) | 2014-04-28 | 2014-04-28 | Prefabricated assembled concrete underflow pumping plant construction method |
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| CN105019653A CN105019653A (en) | 2015-11-04 |
| CN105019653B true CN105019653B (en) | 2017-08-25 |
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| CN201410172217.0A Active CN105019653B (en) | 2014-04-28 | 2014-04-28 | Prefabricated assembled concrete underflow pumping plant construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106258555A (en) * | 2016-07-28 | 2017-01-04 | 龙信建设集团有限公司 | Prefabricated assembled greening flower pond construction method for hanging |
| CN114941341A (en) * | 2022-05-26 | 2022-08-26 | 安徽民升井架制造有限公司 | Install elevator assembled basis and metal foundation groove additional |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3622227A1 (en) * | 1986-06-10 | 1987-12-17 | Frei & Egger Ag | Process for producing a structure, in particular a container, and apparatus for this purpose |
| JP2004276976A (en) * | 2003-03-17 | 2004-10-07 | Ishii Iron Works Co Ltd | Lining structure of concrete-made storage tank, and work execution method therefor |
| CN201458940U (en) * | 2009-03-31 | 2010-05-12 | 中国市政工程华北设计研究总院 | Muddy water discharge high-efficient concentration tank |
| CN101967834A (en) * | 2009-07-28 | 2011-02-09 | 鞍钢集团矿业公司 | Pulp concentration pool underground base structure with anti-floating function |
-
2014
- 2014-04-28 CN CN201410172217.0A patent/CN105019653B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3622227A1 (en) * | 1986-06-10 | 1987-12-17 | Frei & Egger Ag | Process for producing a structure, in particular a container, and apparatus for this purpose |
| JP2004276976A (en) * | 2003-03-17 | 2004-10-07 | Ishii Iron Works Co Ltd | Lining structure of concrete-made storage tank, and work execution method therefor |
| CN201458940U (en) * | 2009-03-31 | 2010-05-12 | 中国市政工程华北设计研究总院 | Muddy water discharge high-efficient concentration tank |
| CN101967834A (en) * | 2009-07-28 | 2011-02-09 | 鞍钢集团矿业公司 | Pulp concentration pool underground base structure with anti-floating function |
Non-Patent Citations (1)
| Title |
|---|
| 大直径浓缩池模板及混凝土施工工艺;袁保珍;《煤炭工程》;20050930(第9期);第32-33页 * |
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