CN108086307A - Compound mini pile is perfused in concrete filled steel tube borehole - Google Patents
Compound mini pile is perfused in concrete filled steel tube borehole Download PDFInfo
- Publication number
- CN108086307A CN108086307A CN201711433146.5A CN201711433146A CN108086307A CN 108086307 A CN108086307 A CN 108086307A CN 201711433146 A CN201711433146 A CN 201711433146A CN 108086307 A CN108086307 A CN 108086307A
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- China
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- steel pipe
- pile
- mini
- pea gravel
- gravel concreten
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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
-
- 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
- E02D5/48—Piles varying in construction along their length, i.e. along the body between head and shoe, e.g. made of different materials along their length
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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 discloses a kind of concrete filled steel tube boreholes to be perfused compound mini pile.It includes the priming concrete pile hole positioned at ground inner upper end and the miniature stake holes group positioned at ground interior lower end, concrete digging hole filling pile is set in the priming concrete pile hole, concrete digging hole filling pile includes more the first steel pipe pea gravel concreten mini piles that circumferentially uniform intervals are arranged and pours the concrete between more first steel pipe pea gravel concreten mini piles, more second steel pipe pea gravel concreten mini piles are set in the miniature stake holes group, and the more first steel pipe pea gravel concreten mini piles are fixedly and coaxially connected respectively with more second steel pipe pea gravel concreten mini piles.The rigidity of structure of the present invention is up big and down small, and stress safety meets the requirement of piling strtucture intensity, long-time stability, and construction quality controllability is strong, and effect on environment is small, and economy is more preferably.
Description
Technical field
The invention belongs to support engineering technical fields, and in particular to compound mini pile is perfused in a kind of concrete filled steel tube borehole.
Background technology
Deposited reinforced concrete pile is a kind of common piling strtucture pattern, frequently with manually digging hole or machine drilling pore-forming
Two ways pore-forming has many advantages, such as that pile strength is high, non-deformability is strong, in ground base enforcement and foundation pit, side slope branch
It is widely applied in gear.
When deposited reinforced concrete pile is constructed using machine drilling method, the impact of generally use impact drill or churning driven rotary digging two
Kind mechanical hole building mode, stake section use circle, and the construction method is applied widely, and speed of application is fast, but since its machinery is set
It is standby that there is certain altitude, and the impact generated in impact drill work progress may also impact ambient enviroment, so as to cause
Headroom deficiency or stake position nearby have and can not be used during building needed for pile foundation construction mechanical equipment.
When deposited reinforced concrete pile is constructed using manually digging hole, form of construction work cuts the upper clearance no requirement (NR) of stake position
Face can be needed according to stress using circular or rectangle, therefore limited using the construction of machine drilling method in deposited reinforced concrete pile
When with certain technology and economic advantages, which is primarily adapted for use in the not high area of level of ground water, meets level of ground water
Manually digging hole construction depth is limited when higher, generally requires to increase water-stop curtain, the auxiliary such as draw water pore-forming when cutting depth is larger
Measure, economy is not good enough, limits its use to a certain extent.
It based on deposited reinforced concrete pile engineering technology present situation, is limited to solve its execution conditions, effect on environment is big, warp
The problems such as Ji property is poor needs emphasis to solve following key technical problem：
(1) new structure should be able to avoid needed for conventional rebar cast-in-place concrete pile pile foundation construction mechanical equipment headroom deficiency,
And level of ground water big to surrounding environment influence it is higher when can not hand excavation the defects of.
(2) new structure should more adapt to the substantially up big and down small stress of piling strtucture pile body, deformation characteristics, and using intensity
Material high, long-time stability are good, so as to economy more preferably, construction quality is controllable.
The content of the invention
The purpose of the present invention is exactly insufficient existing for above-mentioned background technology in order to solve, and it is high, long to provide a kind of structural strength
Phase stability is good, construction quality controllability is strong, effect on environment is small, economy more preferably concrete filled steel tube borehole perfusion is compound micro-
Type stake.
The technical solution adopted by the present invention is：Compound mini pile is perfused in a kind of concrete filled steel tube borehole, including being located at ground
The priming concrete pile hole of inner upper end and the miniature stake holes group positioned at ground interior lower end, the priming concrete pile hole is interior to set concrete borehole
Bored concrete pile, concrete digging hole filling pile include more circumferentially uniform intervals arrangement the first steel pipe pea gravel concreten mini piles and
Pour the concrete between more first steel pipe pea gravel concreten mini piles, the more first steel pipe pea gravel concreten mini piles
The outer wall of the circle of formation is banded with outside stirrup, the inner wall branch for the circle that the more first steel pipe pea gravel concreten mini piles are formed
Stirrup of putting more energy into is supportted, more second steel pipe pea gravel concreten mini piles, more first steel are set in the miniature stake holes group
Pipe pea gravel concreten mini pile is fixedly and coaxially connected respectively with more second steel pipe pea gravel concreten mini piles.
Further, the first steel pipe pea gravel concreten mini pile and the miniature pilework phase of the second steel pipe pea gravel concreten
Together, the first steel pipe pea gravel concreten mini pile includes mini pile steel pipe and pea gravel concreten, the pea gravel concreten perfusion
In in the pore of mini pile steel pipe.
Further, the first steel pipe pea gravel concreten mini pile and the second steel pipe pea gravel concreten mini pile is miniature
Stake steel pipe integration connection.
Further, the first steel pipe pea gravel concreten mini pile and the second steel pipe pea gravel concreten mini pile is miniature
Stake steel pipe is fixedly connected by the steel pipe of built-in bolt.
Further, the more first steel pipe pea gravel concreten mini piles and more second steel pipe pea gravel concretens are miniature
The tie point of the mini pile steel pipe of stake is located in the plane of different height.
Further, the aperture of the mini pile steel pipe is 89-150mm.
Further, the miniature stake holes group includes multiple miniature stake holes of the arranged for interval in ground that are uniformly distributed along the circumference,
The more second steel pipe pea gravel concreten mini pile pile linings are bonded multiple miniature stake holes hole walls respectively.
Further, it is spaced a spacing between the first steel pipe pea gravel concreten mini pile pile lining and priming concrete pile hole hole wall
From.
Further, the outside stirrup twist binds what is formed in more first steel pipe pea gravel concreten mini piles
Round outer wall.
Further, the stirrup of putting more energy into includes more in upper and lower spaced apart steel hoop.
The beneficial effects of the invention are as follows：
(1) concrete filled steel tube borehole is perfused compound miniature pilework and uses steel pipe, pea gravel concreten, concrete filled steel tube and steel
Muscle is as raw material, and material therefor intensity is high, long-time stability are good, and construction quality is controllable.
(2) top pile body structure replaces reinforcing bar, shape using intensity higher, more rigid steel pipe pea gravel concreten mini pile
Into concrete filled steel tube digging hole filling pile, steel pipe pea gravel concreten mini pile possesses certain tension, resistance to compression as individual pile body
And shear resistance, resist external force effect it is more preferable, compared to using reinforcing bar as main reinforcement economy more preferably.
(3) steel pipe pea gravel concreten mini pile is applied using geological drilling rig, accurate positioning, can avoid ordinary pile foundation steel reinforcement cage
Using the method for spacer bar control concrete cover, number of steel bars is further saved.
(4) lower part pile body structure uses steel pipe pea gravel concreten mini pile, using geological drilling rig pore-forming, execution conditions from
Limitation, and effect on environment is small, compared to the stake of conventional rebar concrete drill hole or caisson, in routinely drilling or borehole execution conditions
By in limited time with apparent technical advantage.
(5) steel pipe pea gravel concreten mini pile runs through entire pile body, and top is intensity higher, more rigid steel tube concrete
Top pile body is resisted in native digging hole filling pile, lower part only with steel pipe pea gravel concreten mini pile using the action of pile group of mini pile
The load of transmission, rigidity is up big and down small, is suitable for pile body structure substantially in up big and down small stress, deformation characteristics, saves
Lower part excavation pile construction, economy is more preferably.
Description of the drawings
Fig. 1 is the schematic longitudinal section of the present invention.
Fig. 2 is A-A sectional views in Fig. 1.
Fig. 3 is B-B sectional views in Fig. 1.
The schematic cross-sectional view of Fig. 4 steel pipe pea gravel concreten mini piles of the present invention.
In figure：1- grounds；2- priming concrete pile holes；2.1- hole wall；The miniature stake holes of 3-；3.1- hole wall；4- concrete borehole is perfused
Stake；5- the first steel pipe pea gravel concreten mini piles；5.1- mini pile steel pipes；5.2- pea gravel concreten；5.3- pile lining；6- coagulations
Soil；7- the second steel pipe pea gravel concreten mini piles；Stirrup on the outside of 8-；9- puts more energy into stirrup.
Specific embodiment
The present invention is described in further detail in the following with reference to the drawings and specific embodiments, convenient for this hair is well understood
It is bright, but they do not form the present invention and limit.
As shown in Figs 1-4, the present invention is included positioned at the priming concrete pile hole 2 of 1 inner upper end of ground and positioned at 1 interior lower end of ground
Miniature stake holes group, concrete digging hole filling pile 4 is set in the priming concrete pile hole 2, and concrete digging hole filling pile 4 includes more edges
The spaced apart first steel pipe pea gravel concreten mini pile 5 of even circumferential and pour it is miniature in more first steel pipe pea gravel concretens
Concrete 6 between stake 5, the outer wall for the circle that the more first steel pipe pea gravel concreten mini piles 5 are formed are banded with outside stirrup
8, outside stirrup 8 twist binds the outer wall of the circle formed in more first steel pipe pea gravel concreten mini piles.Described more
The inner wall for the circle that first steel pipe pea gravel concreten mini pile 5 is formed is supported by stirrup 9 of putting more energy into, and stirrup 9 of putting more energy into is presented including more
Under spaced apart steel hoop.More second steel pipe pea gravel concreten mini piles 7 are set in the miniature stake holes group, it is described more
Root the first steel pipe pea gravel concreten mini pile 5 is fixedly and coaxially connected respectively with more second steel pipe pea gravel concreten mini piles 7.
A spacing is spaced between the pile lining 5.3 of first steel pipe pea gravel concreten mini pile 5 and the hole wall 2.1 of priming concrete pile hole 2
From convenient for concrete filled steel tube, the structural strength of guarantee concrete digging hole filling pile are perfused into priming concrete pile hole.
Because geological conditions is limited, the depth of the application priming concrete pile hole 2 is excavated to position more than level of ground water, i.e. bored concrete pile
The height of 2 bottom of hole is higher than the height of level of ground water, and position below level of ground water is constructed miniature stake holes group and more second steel pipes
Pea gravel concreten mini pile.
Above-mentioned first steel pipe pea gravel concreten mini pile 5 is identical with the second steel pipe pea gravel concreten 7 structures of mini pile, described
First steel pipe pea gravel concreten mini pile 5 includes mini pile steel pipe 5.1 and pea gravel concreten 5.2, and the pea gravel concreten 5.2 fills
It notes in the pore of mini pile steel pipe 5.1.The aperture of mini pile steel pipe 5.1 is 89-150mm, 2 aperture 1.25-2m of priming concrete pile hole.
According to the difference of work progress, the first steel pipe pea gravel concreten mini pile 5 and the second steel pipe pea gravel concreten are miniature
The connection mode of stake 7 can have different modes, and the first steel pipe pea gravel concreten mini pile 5 and the second steel pipe pea gravel concreten are miniature
The mini pile steel pipe integration connection of stake 7；Or first steel pipe pea gravel concreten mini pile 5 and the second steel pipe pea gravel concreten it is micro-
The mini pile steel pipe of type stake 7 is fixedly connected by the steel pipe of built-in bolt, and during by built-in being bolted, more first steel pipes are thin
Stone concrete mini pile 5 is located at different height from the tie point of the mini pile steel pipe of more second steel pipe pea gravel concreten mini piles 7
In the plane of degree, structural strength is more preferable.
In said program, miniature stake holes group includes multiple miniature stake holes 3 of the arranged for interval in ground that are uniformly distributed along the circumference, institute
The pile lining for stating more second steel pipe pea gravel concreten mini piles 7 is bonded the hole wall 3.1 of multiple miniature stake holes 3 respectively.Second steel pipe
The mini pile steel pipe of pea gravel concreten mini pile 7 is implanted into during mini pile hole wall applies with pipe, and the two fits closely, miniature
Stake steel pipe pours into pea gravel concreten after fixing, and mini pile steel pipe and pea gravel concreten form reliable entirety.
The application top pile body is concrete filled steel tube digging hole filling pile, uses intensity higher, more rigid steel pipe thin
Stone concrete mini pile replaces the reinforcing bar of conventional rebar concrete caisson or drilled pile, and by steel pipe pea gravel concreten mini pile
Digging hole filling pile is penetrated to certain depth, overall stiffness is big, to undertake the larger load in top, and load is transferred to surrounding
Ground and lower part pile body.Steel pipe pea gravel concreten mini pile possesses certain tension, resistance to compression and shearing resistance energy as individual pile body
Power, can effectively save conventional rebar concrete caisson or the main reinforcement of drilled pile and shearing resistance stirrup quantity.In addition, steel pipe microlith mixes
Solidifying soil mini pile 1 is applied using geological drilling rig, and effect on environment is small, and accurate positioning, and ordinary pile foundation steel reinforcement cage can be avoided to use
The method that spacer bar controls concrete cover, further saves number of steel bars, economical good.
The clump of piles that lower part pile body forms for several steel pipe pea gravel concreten mini piles, lower part pile body shared top coagulation
The load that native bored concrete pile transfers, and load is transferred to ground around, rigidity is smaller compared to top pile body, is suitable for pile body
Structure substantially in up big and down small stress, deformation characteristics, has saved lower part excavation pile construction, economy is more preferably.
Specific implementation process is as follows：
(1) priming concrete pile hole 2 is constructed to projected depth (generally in level of ground water more than position), and when construction should be real according to ground
Border situation carries out necessary supporting by design requirement to priming concrete pile hole (including fore shaft, retaining wall etc.).
(2) geological drilling rig is set up in 2 top of priming concrete pile hole that construction finishes, is applied by design position and bore miniature stake holes group, it is micro-
Using mini pile steel pipe as boring casing with proceeding to design stake bottom position in type stake holes group's drilling process.
(3) in priming concrete pile hole 2 formed cylindrically foundation trench in by design requirement binding or welded still pipe on the outside of stirrup 8,
It puts more energy into stirrup 9.This kind of method is suitable for the first steel pipe pea gravel concreten mini pile 5 and the second steel pipe pea gravel concreten mini pile 7
Mini pile steel pipe integration connection situation.
When the mini pile steel pipe of the first steel pipe pea gravel concreten mini pile 5 and the second steel pipe pea gravel concreten mini pile 7 is non-
During integration connection, which can also be used following manner：Outside stirrup 8, the binding for stirrup 9 of putting more energy into or welding are using at other
Construction site lifts after making and places, and what other construction sites made is placed in the cylindrically foundation trench of priming concrete pile hole formation
The mini pile steel pipe of first steel pipe pea gravel concreten mini pile and the mini pile steel pipe of the second steel pipe pea gravel concreten mini pile are adopted
With same size, with intensity built-in bolt fastener for connection, the connector of each mini pile steel pipe should be avoided at same depth section.
(4) outside stirrup 8, stirrup of putting more energy into binding 9, welding finish or lifting construction after, in priming concrete pile hole 2 formed
The concrete filled steel tube 6 of corresponding label is cylindrically perfused in foundation trench by design requirement, conserves to the design cycle.Mini pile steel pipe can
As the quality testing sound detecting pipe of concrete digging hole filling pile, pea gravel concreten is perfused thereto after detection is qualified, on request
It is conserved and is detected.
More than every construction procedure apply after formed " the compound miniature pilework of concrete filled steel tube borehole perfusion ".
The content not being described in detail in this specification belongs to the prior art well known to professional and technical personnel in the field.
Claims (10)
1. compound mini pile is perfused in a kind of concrete filled steel tube borehole, it is characterised in that：Perfusion including being located at ground inner upper end
Stake holes (2) and the miniature stake holes group positioned at ground interior lower end, the priming concrete pile hole is interior to set concrete digging hole filling pile (4),
Concrete digging hole filling pile includes more the first steel pipe pea gravel concreten mini piles (5) that circumferentially uniform intervals are arranged and pours
Concrete (6) between more first steel pipe pea gravel concreten mini piles, the more first steel pipe pea gravel concreten mini piles
(5) outer wall of the circle formed is banded with outside stirrup (8), what the more first steel pipe pea gravel concreten mini piles (5) were formed
Round inner wall is supported by stirrup of putting more energy into (9), and more second steel pipe pea gravel concreten mini piles are set in the miniature stake holes group
(7), the more first steel pipe pea gravel concreten mini piles (5) respectively with more second steel pipe pea gravel concreten mini piles (7)
It is fixedly and coaxially connected.
2. compound mini pile is perfused in concrete filled steel tube borehole according to claim 1, it is characterised in that：First steel pipe
Pea gravel concreten mini pile (5) is identical with second steel pipe pea gravel concreten mini pile (7) structure, the first steel pipe microlith coagulation
Native mini pile (5) includes mini pile steel pipe (5.1) and pea gravel concreten (5.2), and the pea gravel concreten (5.2) is poured into miniature
In the pore of stake steel pipe (5.1).
3. compound mini pile is perfused in concrete filled steel tube borehole according to claim 2, it is characterised in that：First steel pipe
Pea gravel concreten mini pile (5) connection integrated with the mini pile steel pipe of the second steel pipe pea gravel concreten mini pile (7).
4. compound mini pile is perfused in concrete filled steel tube borehole according to claim 2, it is characterised in that：First steel pipe
The steel that the mini pile steel pipe of pea gravel concreten mini pile (5) and the second steel pipe pea gravel concreten mini pile (7) passes through built-in bolt
Pipe is fixedly connected.
5. compound mini pile is perfused in concrete filled steel tube borehole according to claim 4, it is characterised in that：Described more first
Steel pipe pea gravel concreten mini pile and the tie point of the mini pile steel pipe of more second steel pipe pea gravel concreten mini piles are located at not
In level plane.
6. compound mini pile is perfused in concrete filled steel tube borehole according to claim 2, it is characterised in that：The mini pile steel
The aperture of pipe is 89-150mm.
7. compound mini pile is perfused in concrete filled steel tube borehole according to claim 1, it is characterised in that：The miniature stake holes
Group includes multiple miniature stake holes (3) of the arranged for interval in ground that are uniformly distributed along the circumference, the more second steel pipe pea gravel concretens
Mini pile (7) pile lining is bonded multiple miniature stake holes hole walls respectively.
8. compound mini pile is perfused in concrete filled steel tube borehole according to claim 1, it is characterised in that：First steel pipe
It is spaced apart between pea gravel concreten mini pile pile lining and priming concrete pile hole hole wall.
9. compound mini pile is perfused in concrete filled steel tube borehole according to claim 1, it is characterised in that：The outside stirrup
(8) outer wall of the circle formed in more first steel pipe pea gravel concreten mini piles is twist bound.
10. compound mini pile is perfused in concrete filled steel tube borehole according to claim 1, it is characterised in that：The hoop of putting more energy into
Muscle (9) includes more in upper and lower spaced apart steel hoop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711433146.5A CN108086307B (en) | 2017-12-26 | 2017-12-26 | Steel pipe concrete hole digging and pouring composite miniature pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711433146.5A CN108086307B (en) | 2017-12-26 | 2017-12-26 | Steel pipe concrete hole digging and pouring composite miniature pile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108086307A true CN108086307A (en) | 2018-05-29 |
| CN108086307B CN108086307B (en) | 2023-05-26 |
Family
ID=62178196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711433146.5A Active CN108086307B (en) | 2017-12-26 | 2017-12-26 | Steel pipe concrete hole digging and pouring composite miniature pile |
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| Country | Link |
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| CN (1) | CN108086307B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110185390A (en) * | 2019-06-10 | 2019-08-30 | 中铁五局集团建筑工程有限责任公司 | A kind of mini pile clump of piles boring positioning guiding device and application method |
| CN111455981A (en) * | 2020-04-05 | 2020-07-28 | 来安县祥瑞机电科技有限责任公司 | Concrete cast-in-place pile of sludge texture foundation and construction method thereof |
| CN116427451A (en) * | 2023-03-13 | 2023-07-14 | 中铁九局集团第三建设有限公司 | Micro pile reinforcement construction method for tunnel foundation under poor geological conditions |
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| CN207794067U (en) * | 2017-12-26 | 2018-08-31 | 中铁第四勘察设计院集团有限公司 | Compound mini pile is perfused in concrete filled steel tube borehole |
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| CN101122131A (en) * | 2007-08-14 | 2008-02-13 | 蓝冰 | Foundation pit supporting pile using pipe casting pile embedding in rock |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185390A (en) * | 2019-06-10 | 2019-08-30 | 中铁五局集团建筑工程有限责任公司 | A kind of mini pile clump of piles boring positioning guiding device and application method |
| CN111455981A (en) * | 2020-04-05 | 2020-07-28 | 来安县祥瑞机电科技有限责任公司 | Concrete cast-in-place pile of sludge texture foundation and construction method thereof |
| CN116427451A (en) * | 2023-03-13 | 2023-07-14 | 中铁九局集团第三建设有限公司 | Micro pile reinforcement construction method for tunnel foundation under poor geological conditions |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108086307B (en) | 2023-05-26 |
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