CN106522210A - Pile bottom anchoring structure for bare rock geological stressed steel pipe pile - Google Patents
Pile bottom anchoring structure for bare rock geological stressed steel pipe pile Download PDFInfo
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- CN106522210A CN106522210A CN201610981833.XA CN201610981833A CN106522210A CN 106522210 A CN106522210 A CN 106522210A CN 201610981833 A CN201610981833 A CN 201610981833A CN 106522210 A CN106522210 A CN 106522210A
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- pipe pile
- steel
- steel pipe
- pile
- steel plate
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/38—Concrete 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 invention relates to a pile bottom anchoring structure for a bare rock geological stressed steel pipe pile. The structure is manufactured by the steps of: A, machining supporting lug reinforcing steel bars; B, machining an annular supporting steel plate; C, preparing a steel pipe pile casing or a steel pipe pile; D, integrally welding the annular supporting steel plate and the steel pipe pile casing or the steel pipe pile, sleeving the steel pipe pile with the steel pipe pile casing and arranging the same in the middle of the annular supporting steel plate or arranging the steel pipe pile in the middle of the steel pipe pile; E, successively welding the supporting lug reinforcing steel bars around the annular supporting steel plate; and F, after hole forming of a bed rock, hoisting the steel pipe pile into the hole, and pouring underwater concrete to form a stable stress structure. In construction of the stressed steel pipe pile, by adding ribbed reinforcing steel bar supporting lugs at the bottom of the steel pipe pile, concrete in the steel pipe smoothly passes through pile bottom gaps and is overturned externally between the steel pipe and the hole wall, so that the bounding stress between the concrete and the steel pipe pile is doubled; an annular steel plate is additionally arranged to be welded with the bottom of the steel pipe pile, the shear effect between the pile bottom and the concrete is avoided, the pile bottom anchoring action of the concrete is fully exerted, and the stress performance of the steel pipe pile is guaranteed.
Description
Technical field
The present invention relates to the constructing structure of steel pipe pile foundation, particularly a kind of naked rock geology stress steel-pipe pile stake bottom anchors structure
Make.
Background technology
When water-filling Bridge basis or construction of cast-in-situ box-beam is entered, often need to set up trestle, drilling platform, support etc. temporarily
Structure, the type temporary structure is at present more adopts steel pipe pile foundation, and speed of application is fast, and be easily recycled and recycle.
Naked rock geology is due to its surface intectate or shallower sand pebble layer, it is impossible to meet steel-pipe pile inserting piling, bury anchor
Solid requirement, therefore need to carry out stress steel pipe pile foundation construction 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 stablizing for anchorage of pile end
Force structure.
During naked rock geology " planting stake method " construction technology steel pipe pile foundation, what stake bottom anchorage technology was commonplace has two kinds of shapes
Formula：
First, steel-pipe pile directly enters rock anchor admittedly
After the pore-forming equipments such as percussive drill form stake holes on basement rock, stress steel-pipe pile is put into into bottom hole directly, is then irrigated
Underwater concrete, forms stable force structure.
The weak point of the method：
1. under water filling concrete when, the steel-pipe pile that bottomed out hinders, and stake bottom precipitation is difficult to be washed open by concrete, pile bottom sediment
Blocked up, easily there is sedimentation in steel-pipe pile after stress.
2. steel-pipe pile produces bond stress with concrete only inner side, and material property is not played completely.
2nd, steel-pipe pile bottom slot
After the pore-forming equipments such as percussive drill form stake holes on basement rock, by steel-pipe pile bottom ring open up certain amount, width,
Then stress steel-pipe pile is put into bottom hole, pouring underwater concrete by the notch of height, and concrete flows out from slit space, holds
Steel-pipe pile is wrapped up in, stable force structure is formed.
The weak point of the method：
1. steel-pipe pile bottom opens up the spacing of notch, is highly difficult to control to, and causes steel-pipe pile waste of material, and after opening up notch,
Steel-pipe pile stress section is weakened.
Although 2. between steel-pipe pile and concrete, bilateral plays bond stress, stake end easily will to the shearing effect of concrete
Stake base concrete destruction, causes actual bearing capacity of pile tip less than value of calculation, and stake end occurs differential settlement.
The content of the invention
It is an object of the invention to provide a kind of naked rock geology stress steel-pipe pile stake bottom anchoring structure, mainly solves above-mentioned existing
The technical problem having existing for technology, in stress steel pipe pile driving construction, by increasing Ribbed Bar spike in steel-pipe pile bottom, makes
Steel duct concrete passes through a bottom gap, is turned between steel pipe and hole wall outward, by holding between concrete and steel-pipe pile
Wrap up in power and lift one times；Increase doughnut-shaped steel plate pad and steel-pipe pile bottom welding, it is to avoid shearing effect between stake bottom and concrete
Should, give full play to the stake bottom anchorage effect of concrete, it is ensured that steel-pipe pile stress performance.
For achieving 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 comprises the steps：
A, processing spike reinforcing bar are some；
B, one piece of processing annular brace steel plate；
C, preparation steel-pipe pile casing or steel-pipe pile one；
D, will be annular brace steel plate and steel-pipe pile casing or steel-pipe pile bottom welding integral, steel-pipe pile is inserted in into steel-pipe pile casing
And be arranged at annular brace steel plate centre position, or steel-pipe pile bottom is arranged at into annular brace steel plate centre position；
E, spike reinforcing bar is welded successively around annular brace steel plate；
F, treat basement rock pore-forming after the completion of, hang steel-pipe pile and enter hole, pour underwater concrete, form stable force structure.
Described naked rock geology stress steel-pipe pile stake bottom anchoring structure, it is characterised in that：The spike reinforcing bar selects HPB400
Hot rolled ribbed bars.
Described 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.
Described 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 some grooves, in the groove, weld spike reinforcing bar successively.
The invention is characterised by：There are built on stilts construction, pad construction in stake bottom.
The invention has the advantages that：
1. by increasing Ribbed Bar spike in steel-pipe pile bottom, make steel duct concrete pass through a bottom gap, turn up
To between steel pipe and hole wall, the bond stress between concrete and steel-pipe pile is lifted into one times.
2. doughnut-shaped steel plate pad and steel-pipe pile bottom welding are increased, it is to avoid the shearing effect between stake bottom and concrete,
The stake bottom anchorage effect of concrete is given full play to, it is ensured that steel-pipe pile stress performance.
Description of the drawings
Fig. 1 is the three-dimensional combination figure of present invention construction.
Fig. 2 is the three-dimensional exploded view of present invention construction.
Specific embodiment
Refer to Fig. 1,2, the invention discloses a kind of naked rock geology stress steel-pipe pile stake bottom anchoring structure, it includes as follows
Step：
A, processing spike reinforcing bar 1 are some；
B, 2 one pieces of processing annular brace steel plate；
C, preparation steel-pipe pile casing 3 or steel-pipe pile one；
D, will be annular brace steel plate 2 integral with steel-pipe pile casing 3 or steel-pipe pile bottom welding, by steel-pipe pile be inserted in steel-pipe pile shield
Cylinder 3 is simultaneously arranged at 2 centre position of annular brace steel plate, or steel-pipe pile bottom is arranged at 2 centre position of annular brace steel plate；
E, spike reinforcing bar 1 is welded successively around annular brace steel plate 2；
F, treat basement rock pore-forming after the completion of, hang steel-pipe pile and enter hole, pour underwater concrete, form stable force structure.
Used as preferred structure, the spike reinforcing bar 1 selects HPB400 hot rolled ribbed bars.
As material, the consistency of thickness of preferred structure, the annular brace steel plate 2 and steel-pipe pile casing 3 or steel-pipe pile.
As preferred structure, have around the annular brace steel plate 2 in some grooves, the groove and weld spike reinforcing bar 1 successively.
In sum be only presently preferred embodiments of the present invention, not for limit the present invention practical range.It is i.e. all
The equivalence changes made according to the content of scope of the present invention patent and modification, all should be the technology category of the present invention.
Claims (4)
1. a kind of naked rock geology stress steel-pipe pile stake bottom anchoring structure, it is characterised in that：It comprises the steps：
A, processing spike reinforcing bar（1）It is some；
B, processing annular brace steel plate（2）One piece；
C, preparation steel-pipe pile casing（3）Or steel-pipe pile one；
D, by annular brace steel plate（2）With steel-pipe pile casing（3）Or steel-pipe pile bottom welding is integral, and steel-pipe pile is inserted in steel pipe
Stake casing（3）And it is arranged at annular brace steel plate（2）Centre position, or steel-pipe pile bottom is arranged at into annular brace steel plate（2）
Centre position；
E, in annular brace steel plate（2）Surrounding welds spike reinforcing bar successively（1）；
F, treat basement rock pore-forming after the completion of, hang steel-pipe pile and enter hole, pour underwater concrete, form stable force structure.
2. naked rock geology stress steel-pipe pile stake bottom anchoring structure according to claim 1, it is characterised in that：The spike reinforcing bar
（1）From HPB400 hot rolled ribbed bars.
3. naked rock geology stress steel-pipe pile stake bottom anchoring structure according to claim 1 and 2, it is characterised in that：The annular
Supporting steel plate（2）With steel-pipe pile casing（3）Or material, the consistency of thickness of steel-pipe pile.
4. naked rock geology stress steel-pipe pile stake bottom anchoring structure according to claim 1 and 2, it is characterised in that：The annular
Supporting steel plate（2）Surrounding has in some grooves, the groove welds spike reinforcing bar successively（1）.
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 |
Applications Claiming Priority (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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106522210A true CN106522210A (en) | 2017-03-22 |
| CN106522210B CN106522210B (en) | 2018-12-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610981833.XA Active 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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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112376552A (en) * | 2020-11-24 | 2021-02-19 | 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 |
Citations (7)
| 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 |
| CN104018505A (en) * | 2014-06-26 | 2014-09-03 | 中国水利水电第十三工程局有限公司 | Prefabricated steel sleeve guided rock-socketed system and application method thereof |
| 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 |
-
2016
- 2016-11-09 CN CN201610981833.XA patent/CN106522210B/en active Active
Patent Citations (7)
| 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 |
| CN104018505A (en) * | 2014-06-26 | 2014-09-03 | 中国水利水电第十三工程局有限公司 | Prefabricated steel sleeve guided rock-socketed system and application method thereof |
| 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112376552A (en) * | 2020-11-24 | 2021-02-19 | 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106522210B (en) | 2018-12-18 |
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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 |