CN103452120B - A kind of stake apical cap girder construction of the high-strength Prestressed Pipe Pile for pattern foundation pit supporting structure and construction method thereof - Google Patents
A kind of stake apical cap girder construction of the high-strength Prestressed Pipe Pile for pattern foundation pit supporting structure and construction method thereof Download PDFInfo
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Abstract
A kind of stake apical cap girder construction of the high-strength Prestressed Pipe Pile for pattern foundation pit supporting structure and construction method thereof, its main points are: Guan Liang is arranged on high-strength Prestressed Pipe Pile top, the length that high-strength Prestressed Pipe Pile anchors into Guan Liang is identical with hat depth of beam, hat depth of beam is not less than 500mm, width is pipe pile footpath+400mm, and namely pile tube edge 200mm is respectively stretched out in both sides; The Reinforcement of Guan Liang is arranged in the edge of both sides inside and outside closing foundation ditch, and waist muscle againsts pile tube edge; In Guan Liang region between adjacent two high-strength Prestressed Pipe Pile, the additional two vertical lacing wires of two-way two limb hoop are set, stirrup, from pile tube edge 50mm, anchors in the Guan Liang region of Guan Liang in high-strength Prestressed Pipe Pile, arranges two independently two-way two limb hoops; Its main construction sequence is: at the bottom of soil excavation to hat beam pad layer → surveying setting-out → build bed course → assembling reinforcement → take template → concreting → solarization water curing → stripping → lower floor's soil excavation.
Description
Technical field
The present invention relates to Deep Foundation Pit Supporting Project technical field, specifically a kind of stake apical cap girder construction of the high-strength Prestressed Pipe Pile for pattern foundation pit supporting structure and construction method thereof.
Background technology
Along with urban land is more and more nervous, Construction Party is in order to utilize existing soil fully, cause the distance of basement and the using land red line in planning more and more nearer, the distance of part basement and the using land red line in planning even 3m less than, the result caused thus is: the dark common foundation ditch of 3 ~ 4m is owing to being limited by land red-line, the simple support patterns such as natural discharging slope cannot be adopted, and vertical gear supporting and protection structure must be adopted, now high-strength Prestressed Pipe Pile is as a kind of inexpensive supporting and protection structure, is with a wide range of applications.In order to make all supporting pile tubes form entirety, jointly playing support action, needing stake top increase by the Taoist priest's cap beam in high-strength Prestressed Pipe Pile.
The stake apical cap beam of current high-strength Prestressed Pipe Pile generally adopts steel concrete Guan Liang, its way is: adopt the method that pile tube is similar to the anchorage style of reinforced concrete pile cap, namely the bar dowel cage of 1 joint length about 1 ~ 1.5m is implanted at high-strength Prestressed Pipe Pile emptying aperture, reinforcing cage bottom welding one piece of round plate, then will tamp with pea gravel concreten within the scope of 1 ~ 1.5m below high-strength Prestressed Pipe Pile stake top and build integrally with the Guan Liang on stake top.Its drawback is: cause high-strength Prestressed Pipe Pile Horizontal Displacement inharmonious once due to differences such as stratum and the outer preloadings in hole, Guan Liang is easily pulled out, this just requires the length lengthening the reinforcing cage implanted in high-strength Prestressed Pipe Pile emptying aperture, the consumption of steel concrete can be increased, therefore also just add a cost for apical cap beam, in economy, have no advantage.When adopting the stake apical cap beam of outer-enwraped type, not easily need not be pulled out by Guan Liang when high-strength Prestressed Pipe Pile emptying aperture is implanted into reinforcing cage and concreting can ensure that Horizontal Displacement is inharmonious, a large amount of steel concrete can not only be saved, and can the duration be saved, there is larger economic benefit.
Summary of the invention
For high-strength Prestressed Pipe Pile stake apical cap beam traditional method can because anchor into too much pile tube emptying aperture cause steel concrete too much to waste and Horizontal Displacement is inharmonious time the Guan Liang present situation that is easily pulled out, the invention provides a kind of stake apical cap girder construction and construction method thereof of the high-strength Prestressed Pipe Pile for pattern foundation pit supporting structure, this apical cap girder construction need not take extra anchoring between high-strength Prestressed Pipe Pile and hat beam, all supporting pile tubes can be made to form entirety, jointly play support action.
The stake apical cap girder construction of a kind of high-strength Prestressed Pipe Pile for pattern foundation pit supporting structure of the present invention: Guan Liang is arranged on high-strength Prestressed Pipe Pile top, the length that high-strength Prestressed Pipe Pile anchors into Guan Liang is identical with hat depth of beam; The Reinforcement of Guan Liang is arranged in the edge of both sides inside and outside hat beam closing foundation ditch, and waist muscle againsts pile tube edge; In Guan Liang region between adjacent two high-strength Prestressed Pipe Pile, arrange the additional two vertical lacing wires of two-way two limb hoop, stirrup is from pile tube edge 50mm; Anchor in the Guan Liang region of Guan Liang in high-strength Prestressed Pipe Pile, two independently two-way two limb hoops are set.
Described hat depth of beam is not less than 500mm, and width is pipe pile footpath+400mm, and namely high-strength Prestressed Pipe Pile edge 200mm is respectively stretched out in both sides.
Described Reinforcement is the indented bars of diameter 16 ~ 25mm.
Described waist muscle is the indented bars of diameter 16 ~ 25mm.
Described stirrup is the plain bar of diameter 8 ~ 12mm, and spacing is 50 ~ 100mm.
For a construction method for the stake apical cap girder construction of the high-strength Prestressed Pipe Pile of pattern foundation pit supporting structure, its step is as follows:
(1) pit earthwork is excavated to absolute altitude at the bottom of the bed course of Guan Liang;
(2) surveying setting-out, carries out axis location to Guan Liang;
(3) C15 concreting hat beam pad layer is adopted;
(4) colligation hat beam steel: reinforcing bar outside first colligation, reinforcing bar inside rear colligation;
(5) prop up and take hat beam forms;
(6) hat beam concrete is built;
(7) concreting is complete, after final set, shine water curing in time;
(8) 2.5MPa is not less than at concrete strength, after guaranteeing that its surface and corner angle are not damaged because of form removal simultaneously, stripping;
(9) continue maintenance after form removable, after hat beam concrete reaches 70% of design strength, under excavation pit, one deck soil is until bottom foundation ditch.
Advantage of the present invention is: this apical cap girder construction can not need not be pulled out by pile tube when high-strength Prestressed Pipe Pile emptying aperture is implanted into reinforcing cage and concreting can ensure that Horizontal Displacement is inharmonious, a large amount of steel concrete can not only be saved, and can the duration be saved, there is larger economic benefit.
Accompanying drawing explanation
Fig. 1 is the stake apical cap beam plan view of a kind of high-strength Prestressed Pipe Pile for pattern foundation pit supporting structure of the present invention.
Fig. 2 is the stake apical cap beam sectional drawing of a kind of high-strength Prestressed Pipe Pile for pattern foundation pit supporting structure of the present invention.
Fig. 3 is the stake apical cap beam sectional drawing of a kind of high-strength Prestressed Pipe Pile for pattern foundation pit supporting structure of the present invention.
Detailed description of the invention
The stake apical cap girder construction of a kind of high-strength Prestressed Pipe Pile for pattern foundation pit supporting structure according to Fig. 1, Fig. 2, Fig. 3, its architectural feature is:
Guan Liang is arranged on high-strength Prestressed Pipe Pile top, and the length that high-strength Prestressed Pipe Pile anchors into Guan Liang is identical with hat depth of beam; The Reinforcement of Guan Liang is arranged in the edge of both sides inside and outside hat beam closing foundation ditch, and the waist muscle of Guan Liang againsts pile tube edge; In Guan Liang region between adjacent two high-strength Prestressed Pipe Pile, arrange the additional two vertical lacing wires of two-way two limb hoop, stirrup is from pile tube edge 50mm; Anchor in the Guan Liang region of Guan Liang in high-strength Prestressed Pipe Pile, two independently two-way two limb hoops are set.
Described hat depth of beam is not less than 500mm, and width is pipe pile footpath+400mm, and namely high-strength Prestressed Pipe Pile edge 200mm is respectively stretched out in both sides.
Described Reinforcement is the indented bars of diameter 16 ~ 25mm.
Described waist muscle is the indented bars of diameter 16 ~ 25mm.
Described stirrup is the plain bar of diameter 8 ~ 12mm, and spacing is 50 ~ 100mm.
Its construction sequence is as follows:
(1) pit earthwork is excavated to absolute altitude at the bottom of the bed course of Guan Liang;
(2) surveying setting-out, carries out axis location to Guan Liang;
(3) C15 concreting hat beam pad layer is adopted;
(4) colligation hat beam steel: reinforcing bar outside first colligation, reinforcing bar inside rear colligation;
(5) prop up and take hat beam forms;
(6) hat beam concrete is built;
(7) concreting is complete, after final set, shine water curing in time;
(8) 2.5MPa is not less than at concrete strength, after guaranteeing that its surface and corner angle are not damaged because of form removal simultaneously, stripping;
(9) continue maintenance after form removable, after hat beam concrete reaches 70% of design strength, under excavation pit, one deck soil is until bottom foundation ditch.
The invention is not restricted to above-described embodiment, different embodiment can be realized according to the design of reality.
Claims (5)
1. for a stake apical cap girder construction for the high-strength Prestressed Pipe Pile of pattern foundation pit supporting structure, it is characterized in that: Guan Liang is arranged on high-strength Prestressed Pipe Pile top, the length that high-strength Prestressed Pipe Pile anchors into Guan Liang is identical with hat depth of beam; The Reinforcement of Guan Liang is arranged in the edge of both sides inside and outside hat beam closing foundation ditch, and the waist muscle of Guan Liang againsts pile tube edge; In Guan Liang region between adjacent two high-strength Prestressed Pipe Pile, arrange the additional two vertical lacing wires of hat beam stirrup, hat beam stirrup is from pile tube edge 50mm; Anchor in the Guan Liang region of Guan Liang in high-strength Prestressed Pipe Pile, arrange two and be independently preced with beam stirrup.
2. the stake apical cap girder construction of a Ju a kind of high-strength Prestressed Pipe Pile for pattern foundation pit supporting structure according to claim 1, it is characterized in that: described hat depth of beam is not less than 500mm, width is pipe pile footpath+400mm, and namely high-strength Prestressed Pipe Pile edge 200mm is respectively stretched out in both sides.
3. the stake apical cap girder construction of a Ju a kind of high-strength Prestressed Pipe Pile for pattern foundation pit supporting structure according to claim 1, is characterized in that: described Reinforcement is the indented bars of diameter 16 ~ 25mm.
4. the stake apical cap girder construction of a Ju a kind of high-strength Prestressed Pipe Pile for pattern foundation pit supporting structure according to claim 1, is characterized in that: described waist muscle is the indented bars of diameter 16 ~ 25mm.
5. the stake apical cap girder construction of a Ju a kind of high-strength Prestressed Pipe Pile for pattern foundation pit supporting structure according to claim 1, it is characterized in that: described hat beam stirrup is the plain bar of diameter 8 ~ 12mm, spacing is 50 ~ 100mm.
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| CN201310374482.2A CN103452120B (en) | 2013-08-26 | 2013-08-26 | A kind of stake apical cap girder construction of the high-strength Prestressed Pipe Pile for pattern foundation pit supporting structure and construction method thereof |
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| CN201310374482.2A CN103452120B (en) | 2013-08-26 | 2013-08-26 | A kind of stake apical cap girder construction of the high-strength Prestressed Pipe Pile for pattern foundation pit supporting structure and construction method thereof |
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| CN103452120B true CN103452120B (en) | 2015-12-23 |
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| CN105544554A (en) * | 2015-10-26 | 2016-05-04 | 张继红 | Assembly type foundation pit bracing structure and construction method thereof |
| CN105544560B (en) * | 2016-02-03 | 2017-07-21 | 华侨大学 | It is a kind of to be used for the beam type connecting node of special-shaped double-row pile |
| CN108360534A (en) * | 2018-05-04 | 2018-08-03 | 广西建工集团基础建设有限公司 | A kind of foundation pit supporting construction and its construction method of resistance to deformation |
| CN110714615B (en) * | 2019-10-10 | 2021-10-01 | 中国一冶集团有限公司 | Beam bottom formwork dismantling mechanism and beam bottom formwork dismantling method |
| CN113235613B (en) * | 2021-05-24 | 2024-04-05 | 中国铁路设计集团有限公司 | Method for excavating and supporting newly-built foundation pit by utilizing adjacent existing guard piles |
| CN114809001B (en) * | 2022-03-14 | 2024-05-03 | 中铁时代建筑设计院有限公司 | Assembly type PRC supporting structure capable of being recycled and supporting process |
| CN115652942B (en) * | 2022-09-07 | 2023-06-27 | 山东建勘集团有限公司 | Foundation pit supporting combined structure based on prestressed hollow square pile and construction method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080061580A (en) * | 2006-12-28 | 2008-07-03 | 김형구 | Precast concrete file and method for constructing thereof |
| KR20090064710A (en) * | 2007-12-17 | 2009-06-22 | 이창남 | Modifying method of basement slurry wall from one to two way resisting with using wire tensioning |
| CN201334668Y (en) * | 2009-02-25 | 2009-10-28 | 福建省建筑科学研究院 | Moso bamboo row pile |
| CN201801872U (en) * | 2010-07-30 | 2011-04-20 | 中铁四局集团第六工程有限公司 | Deep foundation pit excavated on corrode geology through combined support |
| CN102605792A (en) * | 2012-03-16 | 2012-07-25 | 浙江理工大学 | Multi-row mini-pile enclosing structure for blocking soil and construction process |
| CN103132531A (en) * | 2013-02-28 | 2013-06-05 | 四川省长源建筑工程有限责任公司 | Foundation pit supporting system construction method |
| CN103255771A (en) * | 2013-05-24 | 2013-08-21 | 山西太行建设开发有限公司 | Method for excavating super-deep foundation pit engineering piles in graded mode and graded composite supporting of supporting piles |
-
2013
- 2013-08-26 CN CN201310374482.2A patent/CN103452120B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080061580A (en) * | 2006-12-28 | 2008-07-03 | 김형구 | Precast concrete file and method for constructing thereof |
| KR20090064710A (en) * | 2007-12-17 | 2009-06-22 | 이창남 | Modifying method of basement slurry wall from one to two way resisting with using wire tensioning |
| CN201334668Y (en) * | 2009-02-25 | 2009-10-28 | 福建省建筑科学研究院 | Moso bamboo row pile |
| CN201801872U (en) * | 2010-07-30 | 2011-04-20 | 中铁四局集团第六工程有限公司 | Deep foundation pit excavated on corrode geology through combined support |
| CN102605792A (en) * | 2012-03-16 | 2012-07-25 | 浙江理工大学 | Multi-row mini-pile enclosing structure for blocking soil and construction process |
| CN103132531A (en) * | 2013-02-28 | 2013-06-05 | 四川省长源建筑工程有限责任公司 | Foundation pit supporting system construction method |
| CN103255771A (en) * | 2013-05-24 | 2013-08-21 | 山西太行建设开发有限公司 | Method for excavating super-deep foundation pit engineering piles in graded mode and graded composite supporting of supporting piles |
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