CN103205974A - Supporting structure with combination of preheated groove-shaped piles and mixing piles - Google Patents
Supporting structure with combination of preheated groove-shaped piles and mixing piles Download PDFInfo
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- CN103205974A CN103205974A CN201310133754XA CN201310133754A CN103205974A CN 103205974 A CN103205974 A CN 103205974A CN 201310133754X A CN201310133754X A CN 201310133754XA CN 201310133754 A CN201310133754 A CN 201310133754A CN 103205974 A CN103205974 A CN 103205974A
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- agitation pile
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Abstract
A supporting structure with combination of preheated groove-shaped piles and mixing piles comprises preheated groove-shaped piles and mixing piles. The supporting structure is characterized in that the groove-shaped piles are of groove-shaped sections combined by top flanges, bottom flanges and webs; thicknesses of the top flanges and the bottom flanges decrease progressively, and thicknesses close to the webs are greater than those of the outer ends; prestressed strands are embedded in the top flanges and the bottom flanges longitudinally; and the preheated groove-shaped piles are inserted in the mixing piles at the internals of at least one mixing pile distance, and the mixing piles are connected with one another in an overlapping manner. The groove-shaped piles are simple in production technique, high in work efficiency and production speed, and low in cost.
Description
Technical field
The present invention relates to the geotechnical engineering field, relate in particular to a kind of soft clay area deep foundation pit support engineering.
Background technology
Soft clay area deep pit support fender pile adopts bored pile or preformed pile in conjunction with cement mixing pile or high-pressure rotary jet grouting pile retaining soil and sealing usually, agitation pile and soldier pile associativity are poor, be difficult to avoid leak native phenomenon, and cost height, and bury SWM worker's method of i iron in the multiaxis agitation pile underground, i iron and agitation pile good integrity, but the i iron specification is few, the cost height, and pull out expense and loss is big, replace i iron with prefabricated I-shaped reinforcing bar concrete stake, cost is low, exempt to pull out, but I-shaped stake manufacturing process complexity.The supporting and protection structure that the flute profile stake that a kind of manufacturing process is simple, cost is lower is combined with cement mixing pile yet there are no report.
Summary of the invention
Technical problem to be solved by this invention is to overcome the deficiency of above-mentioned prior art, the supporting and protection structure that provides a kind of manufacturing process is simple, work efficiency is high, manufacturing speed is fast and cost is low pregroove stake to be combined with agitation pile.
The supporting and protection structure of being combined with agitation pile according to a kind of pregroove stake provided by the invention, comprise pregroove stake and agitation pile, described pregroove stake is the channel section by top flange, bottom flange and web combination, described top flange and bottom flange are progressive thickness, nearly web end thickness is greater than outer end thickness, vertically be embedded with prestress wire in top flange and the bottom flange, described pregroove stake inserts in the agitation pile every an agitation pile at least, the overlapping overlap joint setting of described agitation pile.
The supporting and protection structure of being combined with agitation pile according to a kind of pregroove stake provided by the invention also has following attached technical characterictic:
The web outside of described pregroove stake vertically is provided with several fins.
The upper end of described pregroove stake is provided with the steel bar concrete ring beam, and vertical steel strand of pregroove stake stretch into certain-length in the ring beam.
Insert the pregroove stake behind the described mixing pile construction immediately.
The supporting and protection structure of being combined with agitation pile according to a kind of pregroove stake provided by the invention compared with prior art has following advantage:
1, flute profile stake manufacturing process is simple, and work efficiency height, manufacturing speed are fast, cost is lower.
2, the flute profile stake distortion that is embedded in the cement-soil is retrained by cement-soil, and its stress performance is identical with the I-shaped cross-section, can not produce torsion failure.
3, fin and agitation pile interlock performance are good in the flute profile stake, can effectively transmit and agitation pile between shearing, can enlarge the flute profile pile spacing, reduce flute profile stake quantity, reduce cost.
Description of drawings
Fig. 1 is composition diagram of the present invention
Fig. 2 is flute profile stake stereogram of the present invention
Fig. 3 is flute profile stake section of the present invention and arrangement of reinforcement
Fig. 4 is supporting and protection structure sectional drawing of the present invention
The specific embodiment
Referring to Fig. 1 to Fig. 4, the supporting and protection structure of being combined with agitation pile in a kind of pregroove stake provided by the invention, comprise pregroove stake 1 and agitation pile 2, described pregroove stake 1 is the channel section by top flange 11, bottom flange 12 and web 13 combinations, described top flange 11 and bottom flange 12 are the thickening degree, nearly web end thickness is greater than outer end thickness, vertically be embedded with prestress wire 14 in top flange 11 and the bottom flange 12, described pregroove stake 1 inserts in the agitation pile 2 every an agitation pile 2 at least, described agitation pile 2 overlapping overlap joint settings.The flute profile stake can be adopted the long collimation method manufacturing of loose tool easily, the work efficiency height, low cost of manufacture, it is molding for convenience that the thickening degree is adopted on the edge of a wing, but can not influence the stress performance in cross section, adopt high-strength high twisted wire can significantly reduce the steel using amount of stake as main muscle, but channel section also both forward and reverse directions is bent, the moment of flexure that can satisfy the fender post different depth changes, the overlapping overlap joint setting of agitation pile can make cement-soil form continuous body of wall, good integrity, sealing performance is good, and the flute profile stake keeps at a certain distance away to bury underground and can enlarge pilespacing, reduce quantity, give full play to the big characteristics of flute profile stake bending resistance, thereby reduce the supporting and protection structure cost, this support pattern with the impervious leakproof of agitation pile and preformed pile bending resistance shearing resistance, cost is economized, and performance is good.
Referring to Fig. 1 to Fig. 3, in above-described embodiment that the present invention provides, web 13 outsides of described pregroove stake 1 vertically are provided with several fins 15.The globality that fin 15 can improve pregroove stake and cement mixing pile is established in pregroove stake 1, increases the shear strength of contact surface, and anti-leak-stopping soil phenomenon takes place.
Referring to Fig. 1 to Fig. 4, in above-described embodiment that the present invention provides, insert pregroove stake 1 immediately after described agitation pile 2 constructions.Pregroove stake 1 is not solidified preceding insertion at the cement-soil of agitation pile 2, both can reduce pile driving pressure, can make pregroove stake and cement stir binding ability again and improve.
Claims (4)
1. supporting and protection structure that the pregroove stake is combined with agitation pile, comprise pregroove stake and agitation pile, it is characterized in that described pregroove stake is the channel section by top flange, bottom flange and web combination, described top flange and bottom flange are the thickening degree, nearly web end thickness is greater than outer end thickness, vertically be embedded with prestress wire in top flange and the bottom flange, described pregroove stake inserts in the agitation pile every an agitation pile at least, the overlapping overlap joint setting of described agitation pile.
2. the pregroove stake supporting and protection structure of being combined with agitation pile according to claim 1 is characterized in that the web outside of described pregroove stake vertically is provided with several fins.
3. the pregroove stake supporting and protection structure of being combined with agitation pile according to claim 1 is characterized in that the upper end of described pregroove stake is provided with the steel bar concrete ring beam, and vertical steel strand of pregroove stake stretch into certain-length in the ring beam.
4. the pregroove stake supporting and protection structure of being combined with agitation pile according to claim 1 is characterized in that inserting the pregroove stake immediately behind the described mixing pile construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310133754.XA CN103205974B (en) | 2013-04-17 | 2013-04-17 | The supporting construction that pregroove stake is combined with mixing pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310133754.XA CN103205974B (en) | 2013-04-17 | 2013-04-17 | The supporting construction that pregroove stake is combined with mixing pile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103205974A true CN103205974A (en) | 2013-07-17 |
| CN103205974B CN103205974B (en) | 2016-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310133754.XA Active CN103205974B (en) | 2013-04-17 | 2013-04-17 | The supporting construction that pregroove stake is combined with mixing pile |
Country Status (1)
| Country | Link |
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| CN (1) | CN103205974B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103898918A (en) * | 2014-04-22 | 2014-07-02 | 杨众 | Combined supporting structure and construction method |
| CN106592584A (en) * | 2016-11-28 | 2017-04-26 | 林清辉 | Anti-deviation structure for engineering pile on soft soil foundation and construction process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0460019A (en) * | 1990-06-28 | 1992-02-26 | Toda Constr Co Ltd | Master pile horizontal sheet-pile method |
| DE69500219D1 (en) * | 1994-04-22 | 1997-05-15 | Beton Son Bv | U-shaped spar cover for a sheet pile wall made of corrugated panels |
| CN201089893Y (en) * | 2007-09-06 | 2008-07-23 | 铁道第四勘察设计院 | Foundation pit circle shield prefabricated driven pile |
| CN201321614Y (en) * | 2008-10-31 | 2009-10-07 | 袁建标 | Retaining structure of precast reinforced concrete beam cement-soil piling wall |
| CN202730749U (en) * | 2012-08-21 | 2013-02-13 | 孔超 | Prefabricated reinforced concrete H-shaped support pile |
-
2013
- 2013-04-17 CN CN201310133754.XA patent/CN103205974B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0460019A (en) * | 1990-06-28 | 1992-02-26 | Toda Constr Co Ltd | Master pile horizontal sheet-pile method |
| DE69500219D1 (en) * | 1994-04-22 | 1997-05-15 | Beton Son Bv | U-shaped spar cover for a sheet pile wall made of corrugated panels |
| CN201089893Y (en) * | 2007-09-06 | 2008-07-23 | 铁道第四勘察设计院 | Foundation pit circle shield prefabricated driven pile |
| CN201321614Y (en) * | 2008-10-31 | 2009-10-07 | 袁建标 | Retaining structure of precast reinforced concrete beam cement-soil piling wall |
| CN202730749U (en) * | 2012-08-21 | 2013-02-13 | 孔超 | Prefabricated reinforced concrete H-shaped support pile |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103898918A (en) * | 2014-04-22 | 2014-07-02 | 杨众 | Combined supporting structure and construction method |
| CN106592584A (en) * | 2016-11-28 | 2017-04-26 | 林清辉 | Anti-deviation structure for engineering pile on soft soil foundation and construction process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103205974B (en) | 2016-08-10 |
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Address after: Jiangdong District Baizhang road 315000 in Zhejiang province Ningbo City Exhibition Center No. 168 28C Applicant after: Yang Zhong Applicant after: Yang Feng Address before: 315000, AUX Road, No. 757 Li RI Road, Yinzhou District, Ningbo, Zhejiang, 502 Applicant before: Yang Zhong Applicant before: Yang Feng |
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