CN207794067U - 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
- CN207794067U CN207794067U CN201721868883.3U CN201721868883U CN207794067U CN 207794067 U CN207794067 U CN 207794067U CN 201721868883 U CN201721868883 U CN 201721868883U CN 207794067 U CN207794067 U CN 207794067U
- Authority
- CN
- China
- Prior art keywords
- steel pipe
- pile
- mini
- pea gravel
- gravel concreten
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses a kind of concrete filled steel tube boreholes, and compound mini pile is perfused.It includes the miniature stake holes group positioned at the priming concrete pile hole of ground inner upper end and 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 described more first steel pipe pea gravel concreten mini piles are fixedly and coaxially connected with more second steel pipe pea gravel concreten mini piles respectively.The utility model rigidity of structure 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, effect on environment is small, and economy is more preferably.
Description
Technical field
The utility model belongs to support engineering technical field, and in particular to a kind of concrete filled steel tube borehole perfusion is compound miniature
Stake.
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 is using 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 needed for pile foundation construction mechanical equipment is insufficient or stake position nearby has can not use when building.
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 round 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 the auxiliary pore-forming such as to increase water-stop curtain, draw water when cutting depth is larger
Measure, economy is not good enough, limits its use to a certain extent.
Limited to solve its execution conditions based on deposited reinforced concrete pile engineering technology present situation, effect on environment is big, passes through
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 it is insufficient,
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 use intensity
Material high, long-time stability are good, more preferably to economy, construction quality is controllable.
Utility model content
The purpose of this utility model is exactly insufficient existing for above-mentioned background technology in order to solve, and provides a kind of structural strength
Height, long-time stability are good, construction quality controllability is strong, effect on environment is small, economy more preferably concrete filled steel tube borehole is perfused
Compound mini pile.
The technical solution adopted in the utility model is：A kind of compound mini pile of concrete filled steel tube borehole perfusion, including be located at
Concrete is arranged in the priming concrete pile hole in the priming concrete pile hole of ground inner upper end and miniature stake holes group positioned at ground interior lower end
Digging hole filling pile, concrete digging hole filling pile include that more the first steel pipe pea gravel concretens that circumferentially uniform intervals are arranged are miniature
Stake and pour the concrete between more first steel pipe pea gravel concreten mini piles, described more first steel pipe pea gravel concretens are micro-
Type stake formed circle outer wall be banded with outside stirrup, described more first steel pipe pea gravel concreten mini piles formed circle it is interior
Wall is supported by stirrup of putting more energy into, and is arranged more second steel pipe pea gravel concreten mini piles in the miniature stake holes group, described more the
One steel pipe pea gravel concreten mini pile is fixedly and coaxially connected with more second steel pipe pea gravel concreten mini piles respectively.
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, described 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 be uniformly distributed along the circumference,
Described 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, which is twist bound, forms 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 utility model has the beneficial effects that：
(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
At concrete filled steel tube digging hole filling pile, steel pipe pea gravel concreten mini pile has 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
The method for controlling concrete cover using spacer bar, further saves number of steel bars.
(4) lower part pile body structure uses steel pipe pea gravel concreten mini pile, using geological drilling rig pore-forming, execution conditions not by
Limitation, and effect on environment is small, compares 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, and it is in up big and down small stress, deformation characteristics to be suitable for pile body structure substantially, is saved
Lower part excavation pile construction, economy is more preferably.
Description of the drawings
Fig. 1 is the schematic longitudinal section of the utility model.
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 the utility model steel pipe pea gravel concreten mini piles.
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 boreholes are 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 implementation mode
The utility model is described in further detail in the following with reference to the drawings and specific embodiments, convenient for being well understood
The utility model, but they do not constitute the utility model and limit.
As shown in Figs 1-4, the utility model includes positioned at the priming concrete pile hole 2 of 1 inner upper end of ground and inside ground 1
The miniature stake holes group of lower end, the interior setting concrete digging hole filling pile 4 of the priming concrete pile hole 2, concrete digging hole filling pile 4 includes more
Root circumferentially the first steel pipe pea gravel concreten mini pile 5 of uniform intervals arrangement and is poured in more first steel pipe pea gravel concretens
The outer wall of concrete 6 between mini pile 5, the circle that described more first steel pipe pea gravel concreten mini piles 5 are formed is banded with outside
Stirrup 8, outside stirrup 8 twist bind the outer wall of the circle formed in more first steel pipe pea gravel concreten mini piles.It is described
The inner wall for the circle that more first steel pipe pea gravel concreten mini piles 5 are formed is supported by stirrup 9 of putting more energy into, and stirrup 9 of putting more energy into includes more
In upper and lower spaced apart steel hoop.More second steel pipe pea gravel concreten mini piles 7, institute are set in the miniature stake holes group
More first steel pipe pea gravel concreten mini piles 5 are stated respectively to connect with more second steel pipe pea gravel concreten mini pile, 7 coaxial fixations
It connects.
It is spaced a spacing between the pile lining 5.3 and the hole wall 2.1 of priming concrete pile hole 2 of first steel pipe pea gravel concreten mini pile 5
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 the position of level of ground water or more, 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 as 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 type of stake 7 can have different modes, the first steel pipe pea gravel concreten mini pile 5 and the second steel pipe pea gravel concreten 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 when 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 be 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 has certain tension, resistance to compression and shearing resistance energy as individual pile body
Power, can effectively save conventional rebar concrete caisson or drilled pile main reinforcement and shearing resistance stirrup quantity.In addition, steel pipe microlith is mixed
Solidifying soil mini pile 1 is applied using geological drilling rig, and effect on environment is small, and accurate positioning, be can avoid ordinary pile foundation steel reinforcement cage and is used
The method that spacer bar controls concrete cover, further saves number of steel bars, economical good.
Lower part pile body is a clump of piles for several steel pipe pea gravel concreten mini piles composition, lower part pile body shared top coagulation
The load that native bored concrete pile transmits, and load is transferred to ground around, rigidity is smaller compared to top pile body, is suitable for pile body
Structure is in substantially 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) construction priming concrete pile hole 2 is to projected depth (generally in the above position of level of ground water), and when construction should be according to ground reality
Border situation carries out necessary supporting (including fore shaft, retaining wall etc.) by design requirement to priming concrete pile hole.
(2) geological drilling rig is set up in 2 top of priming concrete pile hole that construction finishes, is applied by design position and bores 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 the case where.
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-
When integration connection, which can also be used such as under type：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 avoid 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, maintenance to design cycle is cylindrically perfused in foundation trench by design requirement.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, as required
It is conserved and is detected.
The above items construction procedure is formed " compound miniature pilework is perfused in concrete filled steel tube borehole " after applying.
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：It include the perfusion positioned at ground inner upper end
Stake holes (2) and miniature stake holes group positioned at ground interior lower end, setting concrete digging hole filling pile (4) in the priming concrete pile hole,
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, described more first steel pipe pea gravel concreten mini piles
(5) outer wall of the circle formed is banded with outside stirrup (8), what described 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 arranged in the miniature stake holes group
(7), described 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 as the 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, described 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 |
|---|---|---|---|
| CN201721868883.3U CN207794067U (en) | 2017-12-26 | 2017-12-26 | Compound mini pile is perfused in concrete filled steel tube borehole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721868883.3U CN207794067U (en) | 2017-12-26 | 2017-12-26 | Compound mini pile is perfused in concrete filled steel tube borehole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207794067U true CN207794067U (en) | 2018-08-31 |
Family
ID=63279265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721868883.3U Active CN207794067U (en) | 2017-12-26 | 2017-12-26 | Compound mini pile is perfused in concrete filled steel tube borehole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207794067U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108086307A (en) * | 2017-12-26 | 2018-05-29 | 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 |
| CN111305187A (en) * | 2020-03-28 | 2020-06-19 | 自然资源部第二海洋研究所 | Stirring pile structure of port silt foundation and construction method thereof |
-
2017
- 2017-12-26 CN CN201721868883.3U patent/CN207794067U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108086307A (en) * | 2017-12-26 | 2018-05-29 | 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 |
| CN111305187A (en) * | 2020-03-28 | 2020-06-19 | 自然资源部第二海洋研究所 | Stirring pile structure of port silt foundation and construction method thereof |
| CN111305187B (en) * | 2020-03-28 | 2021-07-06 | 自然资源部第二海洋研究所 | Stirring pile structure of port silt foundation and construction method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103510510B (en) | A kind of enhancement mode long auger cast-with-pressure concrete pile and construction method | |
| CN1926287B (en) | Working method of pile with an extended head | |
| CN105604001A (en) | Stiffening core cement-soil tubular pile, construction method and cylindrical rotary stirring drilling tool | |
| CN106759288A (en) | One kind building bored pile construction method | |
| CN105442605B (en) | Extract PHC and be reused in deep foundation pit supporting construction method | |
| JP2015183364A (en) | Method for preventing soil structure from sliding at slope surface layer with geocell fixing operation auxiliary means | |
| CN101255691B (en) | Construction method for complete casing tube thin wall filling pile and movable internal mold | |
| CN107642041A (en) | The hollow clump of piles anchorage of super-large diameter | |
| CN102808407B (en) | Construction method of soft-foundation reinforced concrete cast-in-place pile | |
| CN107100164A (en) | A kind of long auger guncreting pile construction method | |
| CN108086307A (en) | Compound mini pile is perfused in concrete filled steel tube borehole | |
| CN103243740B (en) | Construction method of rotary excavating and long spiral combination bored concrete pressure grouting secant pile continuous wall | |
| CN110273413A (en) | A kind of efficient construction method of prefabricated pile | |
| CN207794067U (en) | Compound mini pile is perfused in concrete filled steel tube borehole | |
| CN109610473A (en) | A kind of construction method of the large-scale pool structure foundation pit supporting system of municipal administration | |
| CN206721870U (en) | A kind of long auger guncreting pile steel reinforcement cage | |
| CN104294821B (en) | Pile forming method for confined reinforced cement soil pile | |
| CN208201874U (en) | A kind of open-cell cloth bag grouting structure | |
| CN107642040A (en) | The construction method heavy stone used as an anchor of the hollow clump of piles anchorage of super-large diameter | |
| CN107034894A (en) | Post-tensioned prestressed tension beam recoverable pattern foundation pit supporting structure prefabricated pile and preparation method thereof and construction method | |
| CN207484290U (en) | The hollow clump of piles anchorage of super-large diameter | |
| CN203594023U (en) | Enhanced type long auger drilling pressure-grouting concrete pile | |
| CN106917402B (en) | A kind of CFG pile precast pile head and CFG pile construction method | |
| CN105113492A (en) | Construction method of composite pile applicable to cohesive soil, sandy soil and muddy soil foundations | |
| CN106759296A (en) | Drainable irregular-section bamboo joint pipe pile and root planting type construction method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |