CN106522210B - A kind of naked rock geology stress steel-pipe pile stake bottom anchoring structure - Google Patents

A kind of naked rock geology stress steel-pipe pile stake bottom anchoring structure Download PDF

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Publication number
CN106522210B
CN106522210B CN201610981833.XA CN201610981833A CN106522210B CN 106522210 B CN106522210 B CN 106522210B CN 201610981833 A CN201610981833 A CN 201610981833A CN 106522210 B CN106522210 B CN 106522210B
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China
Prior art keywords
steel
pipe pile
steel plate
annular brace
concrete
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CN201610981833.XA
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CN106522210A (en
Inventor
闫朔
辜力武
杨占群
裴剑铃
沈翔
肖冰
宋满忠
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Road and Bridge International Co Ltd
Road and Bridge East China Engineering Co Ltd
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Road and Bridge International Co Ltd
Road and Bridge East China Engineering Co Ltd
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22Piles
    • E02D5/34Concrete or concrete-like piles cast in position ; Apparatus for making same
    • E02D5/38Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Piles And Underground Anchors (AREA)

Abstract

The present invention relates to a kind of naked rock geology stress steel-pipe pile stake bottom anchoring structures.It the steps include: A, processing support foot reinforcing bar;B, annular brace steel plate is processed;C, prepare steel-pipe pile casing or steel-pipe pile;D, annular brace steel plate and steel-pipe pile casing or steel pipe pile bottom welding are integral, and steel-pipe pile is inserted in steel-pipe pile casing and is set among annular brace steel plate or steel-pipe pile is set among annular brace steel plate;E, support foot reinforcing bar is successively welded around annular brace steel plate;F, it after the completion of basement rock pore-forming, hangs steel-pipe pile and enters hole, pour underwater concrete, formed and stablize force structure.In stress steel pipe pile driving construction, by increasing Ribbed Bar support foot in steel pipe pile bottom, so that steel duct concrete is passed through a bottom gap, turn between steel pipe and hole wall outside, the bond stress between concrete and steel-pipe pile is promoted one times;Increase doughnut-shaped steel plate support pad and steel pipe pile bottom to weld, avoids the shearing effect between bottom and concrete, given full play to the stake bottom anchorage effect of concrete, it is ensured that steel-pipe pile stress performance.

Description

A kind of naked rock geology stress steel-pipe pile stake bottom anchoring structure
Technical field
The present invention relates to the constructing structure of steel pipe pile foundation, especially a kind of naked rock geology stress steel-pipe pile stake bottom anchors structure It makes.
Background technique
When carrying out water Bridge basis or construction of cast-in-situ box-beam, it is interim often to need to set up trestle, drilling platform, bracket etc. Structure, the type temporary structure mostly use steel pipe pile foundation at present, and speed of application is fast and is easily recycled and recycles.
Naked rock geology is unable to satisfy that steel-pipe pile inserting piling, bury anchor due to its surface intectate or shallower sand pebble layer Solid requirement, therefore need to carry out the construction of stress steel pipe pile foundation using " plant stake method " construction technology, i.e., first with percussive drill etc. Pore-forming equipment forms stake holes on basement rock, then transfers stress steel pile casting, pouring underwater concrete, forms the stabilization of anchorage of pile end Force structure.
When naked rock geology " planting stake method " construction technology steel pipe pile foundation, stake bottom anchorage technology it is commonplace there are two types of shapes Formula:
One, it is solid directly to enter rock anchor for steel-pipe pile
After the pore-forming equipments such as percussive drill form stake holes on basement rock, stress steel-pipe pile is directly put into bottom hole, then Pouring underwater concrete forms and stablizes force structure.
The shortcoming of the method:
1. under water when filling concrete, the steel-pipe pile bottomed out hinders, stake bottom precipitating is not easy to be washed open by concrete, stake bottom Sediment is blocked up, and steel-pipe pile easily settles after stress.
2. only inside generates bond stress for steel-pipe pile and concrete, material property does not play completely.
Two, steel pipe pile bottom is slotted
After the pore-forming equipments such as percussive drill form stake holes on basement rock, by steel pipe pile bottom circumferential direction open up certain amount, The notch of width, height, is then put into bottom hole, pouring underwater concrete for stress steel-pipe pile, and concrete flows from slit space Out, steel-pipe pile is bonded, is formed and stablizes force structure.
The shortcoming of the method:
1. steel pipe pile bottom opens up the spacing of notch, height is difficult to control, steel-pipe pile waste of material is caused, and open up notch Afterwards, steel-pipe pile stress section is weakened.
Although stake end is easy the shearing effect of concrete will 2. bilateral plays bond stress between steel-pipe pile and concrete Stake base concrete destroys, and practical bearing capacity of pile tip is caused to be less than calculated value, and differential settlement occurs for stake end.
Summary of the invention
The purpose of the present invention is to provide a kind of naked rock geology stress steel-pipe pile stake bottom anchoring structures, mainly solve above-mentioned existing There is technical problem present in technology, in stress steel pipe pile driving construction, by increasing Ribbed Bar support foot in steel pipe pile bottom, makes Steel duct concrete passes through a bottom gap, turns between steel pipe and hole wall outside, by holding between concrete and steel-pipe pile It wraps up in power and promotes one times;Increase doughnut-shaped steel plate support pad and steel pipe pile bottom to weld, avoids the shearing effect between bottom and concrete It answers, has given full play to the stake bottom anchorage effect of concrete, it is ensured that steel-pipe pile stress performance.
To achieve the above object, the technical scheme is that
A kind of naked rock geology stress steel-pipe pile stake bottom anchoring structure, it is characterised in that: it includes the following steps:
A, processing support foot reinforcing bar is several;
B, one piece of annular brace steel plate is processed;
C, prepare steel-pipe pile casing or steel-pipe pile one;
D, annular brace steel plate and steel-pipe pile casing or steel pipe pile bottom welding is integral, steel-pipe pile is inserted in steel-pipe pile Casing is simultaneously set to annular brace steel plate middle position, or steel pipe pile bottom is set to annular brace steel plate middle position;
E, support foot reinforcing bar is successively welded around annular brace steel plate;
F, it after the completion of basement rock pore-forming, hangs steel-pipe pile and enters hole, pour underwater concrete, formed and stablize force structure.
The naked rock geology stress steel-pipe pile stake bottom anchoring structure, it is characterised in that: the support foot reinforcing bar selects HPB400 Hot rolled ribbed bars.
The naked rock geology stress steel-pipe pile stake bottom anchoring structure, it is characterised in that: the annular brace steel plate and steel pipe Material, the consistency of thickness of stake casing or steel-pipe pile.
The naked rock geology stress steel-pipe pile stake bottom anchoring structure, it is characterised in that: have around the annular brace steel plate There are several slots, support foot reinforcing bar is successively welded in the slot.
The invention is characterized in that: there are aerial construction, support pad construction in stake bottom.
The present invention has the advantage that
1. so that steel duct concrete is passed through a bottom gap by increasing Ribbed Bar support foot in steel pipe pile bottom, It turns between steel pipe and hole wall outside, the bond stress between concrete and steel-pipe pile is promoted one times.
2. increasing doughnut-shaped steel plate support pad and steel pipe pile bottom to weld, the shearing effect between bottom and concrete is avoided, The stake bottom anchorage effect of concrete is given full play to, it is ensured that steel-pipe pile stress performance.
Detailed description of the invention
Fig. 1 is the three-dimensional combination figure that the present invention constructs.
Fig. 2 is the stereogram exploded view that the present invention constructs.
Specific embodiment
Fig. 1,2 are please referred to, the invention discloses a kind of naked rock geology stress steel-pipe pile stake bottom anchoring structures, it includes as follows Step:
A, processing support foot reinforcing bar 1 is several;
B, 2 one pieces of annular brace steel plate are processed;
C, prepare steel-pipe pile casing 3 or steel-pipe pile one;
D, annular brace steel plate 2 and steel-pipe pile casing 3 or steel pipe pile bottom welding is integral, steel-pipe pile is inserted in steel pipe Stake casing 3 is simultaneously set to 2 middle position of annular brace steel plate, or steel pipe pile bottom is set to 2 interposition of annular brace steel plate It sets;
E, support foot reinforcing bar 1 is successively welded around annular brace steel plate 2;
F, it after the completion of basement rock pore-forming, hangs steel-pipe pile and enters hole, pour underwater concrete, formed and stablize force structure.
As preferred structure, which selects HPB400 hot rolled ribbed bars.
As preferred structure, the material, consistency of thickness of the annular brace steel plate 2 and steel-pipe pile casing 3 or steel-pipe pile.
As preferred structure, there are several slots around the annular brace steel plate 2, successively weld support foot reinforcing bar 1 in the slot.
It is in summary only presently preferred embodiments of the present invention, practical range not for the purpose of limiting the invention.It is i.e. all Equivalent changes and modifications made by content according to scope of the present invention patent all should be technology scope of the invention.

Claims (4)

1. a kind of naked rock geology stress steel-pipe pile stake bottom anchoring structure, it is characterised in that: it includes the following steps:
A, processing support foot reinforcing bar (1) is several;
B, (2) one pieces of annular brace steel plate are processed;
C, prepare steel-pipe pile casing (3) or steel-pipe pile one;
D, annular brace steel plate (2) and steel-pipe pile casing (3) or steel pipe pile bottom welding is integral, steel-pipe pile is inserted in steel pipe Stake casing (3) is simultaneously set to annular brace steel plate (2) middle position, or steel pipe pile bottom is set to annular brace steel plate (2) Middle position;
E, successively support foot reinforcing bar (1) is welded around annular brace steel plate (2);
F, it after the completion of basement rock pore-forming, hangs steel-pipe pile and enters hole, pour underwater concrete, formed and stablize force structure.
2. naked rock geology stress steel-pipe pile stake bottom anchoring structure according to claim 1, it is characterised in that: the support foot reinforcing bar (1) HPB400 hot rolled ribbed bars are selected.
3. naked rock geology stress steel-pipe pile stake bottom anchoring structure according to claim 1 or 2, it is characterised in that: the annular Material, the consistency of thickness of supporting steel plate (2) and steel-pipe pile casing (3) or steel-pipe pile.
4. naked rock geology stress steel-pipe pile stake bottom anchoring structure according to claim 1 or 2, it is characterised in that: the annular There are several slots around supporting steel plate (2), successively weld support foot reinforcing bar (1) in the slot.
CN201610981833.XA 2016-11-09 2016-11-09 A kind of naked rock geology stress steel-pipe pile stake bottom anchoring structure Active CN106522210B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610981833.XA CN106522210B (en) 2016-11-09 2016-11-09 A kind of naked rock geology stress steel-pipe pile stake bottom anchoring structure

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Application Number Priority Date Filing Date Title
CN201610981833.XA CN106522210B (en) 2016-11-09 2016-11-09 A kind of naked rock geology stress steel-pipe pile stake bottom anchoring structure

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CN106522210B true CN106522210B (en) 2018-12-18

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112376552B (en) * 2020-11-24 2021-07-30 武汉盛士瑞建设工程有限公司 Energy-saving pile foundation and construction method thereof
CN114032948A (en) * 2021-11-26 2022-02-11 中铁四局集团有限公司 Construction method of large-span cast-in-place beam spiral pipe support foundation steel pipe pile in sludge stratum

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6327617A (en) * 1986-07-18 1988-02-05 Mitani Sekisan Kk Setting work of pile by preboring
CN2115364U (en) * 1992-03-31 1992-09-09 王钦健 Big concrete barrel pile
JP2006009468A (en) * 2004-06-28 2006-01-12 Tanaka Juki Kensetsu Kk Driving method of inner excavation type steel pipe sheet pile and the steel pipe sheet pile used therefor
CN201713812U (en) * 2010-06-03 2011-01-19 中国建筑第七工程局有限公司 Underwater drilling pile foundation protective cylinder
CN203213106U (en) * 2013-04-16 2013-09-25 上海月月潮钢管制造有限公司 Steel tube for penetrating fake substratum pile
CN104018505B (en) * 2014-06-26 2016-04-27 中国水利水电第十三工程局有限公司 The embedding series of rocks system of pre-manufactured steel cage guiding and using method
CN203947466U (en) * 2014-07-07 2014-11-19 中铁二局股份有限公司 A kind of bored pile Anti-floating reinforced bar cage

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EE01 Entry into force of recordation of patent licensing contract

Application publication date: 20170322

Assignee: Guizhou Zhongjiao Yushi Expressway Development Co.,Ltd.

Assignor: ROAD AND BRIDGE EAST CHINA ENGINEERING Co.,Ltd.|ROAD & BRIDGE INTERNATIONAL Co.,Ltd.

Contract record no.: X2021990000374

Denomination of invention: A kind of anchorage structure at the bottom of bare rock geological stressed steel pipe pile

Granted publication date: 20181218

License type: Common License

Record date: 20210624

Application publication date: 20170322

Assignee: CCCC Zhongxiang Highway Development Co.,Ltd.

Assignor: ROAD AND BRIDGE EAST CHINA ENGINEERING Co.,Ltd.|ROAD & BRIDGE INTERNATIONAL Co.,Ltd.

Contract record no.: X2021990000373

Denomination of invention: A kind of anchorage structure at the bottom of bare rock geological stressed steel pipe pile

Granted publication date: 20181218

License type: Common License

Record date: 20210624

EE01 Entry into force of recordation of patent licensing contract