CN108316331A - A kind of concrete composite pile base - Google Patents
A kind of concrete composite pile base Download PDFInfo
- Publication number
- CN108316331A CN108316331A CN201810413061.9A CN201810413061A CN108316331A CN 108316331 A CN108316331 A CN 108316331A CN 201810413061 A CN201810413061 A CN 201810413061A CN 108316331 A CN108316331 A CN 108316331A
- Authority
- CN
- China
- Prior art keywords
- bar
- heavy
- stake
- settling
- concrete composite
- 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.)
- Granted
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
- E02D27/14—Pile framings, i.e. piles assembled to form the substructure
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/08—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against transmission of vibrations or movements in the foundation soil
Abstract
The invention discloses a kind of concrete composite pile bases, include the anti-settling stake of implantation soil layer, are coaxially coated at the pile cover in anti-settling stake top portion, and be supported in the cushion cap at the top of the pile cover；The pile cover is concrete prefabricated cylinder stake, affixed filled with concrete progress between pile cover and anti-settling stake；The anti-settling stake includes the tube body of steel, the anti-settling mechanism being set in the tube body；The anti-settling mechanism includes four anti-heavy bars arranged in " ten " font and four feed screw nut pairs with anti-heavy bar correspondingly, for driving the anti-heavy bar protruded tube external；The lead screw of each feed screw nut pair is equipped with bevel gear；This piling strtucture is reasonable, and the anti-heavy pile pulling in soft soil property is not in loosening and longitudinal sliding motion, anti-heavy to pull out performance and anti-dynamic loading ability is improved.
Description
Technical field
The present invention relates to pile foundation field, more particularly to a kind of concrete composite pile base.
Background technology
Currently, municipal works, the house foundation etc. in the cities such as Plain, seashore all largely use concrete-pile based structures,
Carry out in soft soil property that difficulty of construction is larger, and more important is traditional cylindrical pileworks in mollisol using conventional method
It is easy to appear loosening and longitudinal sliding motions in layer, and the anti-heavy pull out force wretched insufficiency of appearance, lateral shearing resistance is insufficient and anti-dynamic loading
The defects of ability is inadequate directly influences the stability and reliability of building foundation.What present inventor declared《Railway Gao Lu
Dike Deformation Mechanism of Slope and settlement Control technical research》Project in (project be portion of Highway and Railway Engineering safety guarantee province
Build together key lab of the Ministry of Education open project, project number STKF201718), need to use use the stronger stake of anti-settling ability
Based structures.And in traditional construction, in order to improve the firm performance of the building foundation in soft soil property, increase pile body and soil layer it
Between frictional force, usual way can only simply increase the depth of pile body, and as deep as possible is deep into foundation soil body, difficulty of construction
Increase, long construction period, cause construction cost high, the increase of pile body dead weight is unfavorable for the longitudinal stability of pile body instead.In pine
Settled in weak soil matter it is apparent, and it is anti-it is heavy pull out performance and anti-dynamic loading ability is not improved significantly, cannot be satisfied and actually apply
The requirement of work.
Invention content
In view of this, the purpose of the present invention is be directed to it is existing it is anti-heavy pull out simple in structure, anti-in soft soil property heavy pulls out
It is easy to appear loosening and longitudinal sliding motion, anti-sink to pull out performance and anti-dynamic loading scarce capacity, lead to the stability of building foundation for stake
The defect and deficiency bad with reliability, now offer is a kind of reasonable for structure, and the anti-heavy pile pulling in soft soil property is not in pine
Dynamic and longitudinal sliding motion, it is anti-it is heavy pull out performance and anti-dynamic loading ability is improved, the stability of building foundation and good reliability
A kind of concrete composite pile base for soft soil property.
The concrete composite pile base of the present invention includes the anti-settling stake of implantation soil layer, is coaxially coated at the anti-settling stake
The pile cover at top, and it is supported in the cushion cap at the top of the pile cover；The pile cover is concrete prefabricated cylinder stake, pile cover and anti-settling
It is affixed filled with concrete progress between stake；The anti-settling stake includes the tube body of steel, and it is anti-heavy in the tube body to be set to
Descending mechanism；The anti-settling mechanism include four in the anti-heavy bars of " ten " font arrangement and with anti-heavy bar it is one-to-one, use
In four feed screw nut pairs for driving the anti-heavy bar protruded tube external；The lead screw of each feed screw nut pair is equipped with cone tooth
Wheel；
Further, the bottom of the cushion cap is equipped with the circular groove for making pile cover be embedded in；
Further, it is equipped with the dolly that flexible cellular plastic makes above the pile cover, is equipped between the dolly and cushion cap
Plain concrete cushion layer；
Further,：The anti-settling mechanism further includes impact assembly；The impact assembly includes being snug fit at described resist
Impact bar in heavy bar centre bore, the spring for impact bar to be released to impact ground are fixed on the permanent magnet of impact bar end,
And it is set to the electromagnet in the tube body for attracting permanent magnet to make impact bar compressed spring；
Further, it is equipped with the helicla flute extended around its axis in the centre bore of the anti-heavy bar, impact bar is equipped with and institute
State the strut that helicla flute is slidably matched.
Further, cross chassis is equipped in the tube body；Correspondence is installed on cross bottom to four feed screw nut pairs respectively
On four flanks of disk, and four flanks are equipped with sliding slot；The nut of the feed screw nut pair is fixed with to be slided with sliding slot
The sliding block of cooperation；The anti-heavy bar is fixed on the sliding block；
Further, the sliding block both sides are integrally formed with support arm；The lower surface of the support arm is arc surface, and is passed through
The arc surface cross-arm is on flank；
Further, the electromagnet includes cruciform shaped core and the first coil being wrapped on cruciform shaped core and the second line
Circle；
Further, the bottom on the cross chassis is fixed with and four one-to-one spring bases of impact bar；The punching
Hitting bar fixed jacket has snap ring, the spring to be set between snap ring and spring base；
Further, the spring base is made by high molecular material, is equipped with through-hole, and the iron core is fixed in through-hole, institute
The outer end for stating impact bar forms drill bit structure.
Beneficial effects of the present invention：The concrete composite pile base of the present invention, when construction, after tube body is implanted to soil layer, by one
The drive rod that lower end is fixed with cone fluted disc is stretched into from the upper end of tube body in tube body, and cone fluted disc is made to be engaged simultaneously with four bevel gears,
Drive rod drives four lead screw rotations, lead screw to drive nut is mobile axially outward to drive anti-heavy bar outside simultaneously by boring fluted disc
It stretches out, four vias should be arranged certainly, on the side wall of tube body makes anti-heavy bar stretch out, to greatly improve the anti-settling energy of pile foundation
Power.
Description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is schematic structural view of the invention；
Fig. 2 is the schematic diagram of the anti-settling stake of the present invention；
Fig. 3 is the topology view of the anti-settling mechanism of the present invention；
Fig. 4 is the arrangement schematic diagram of the feed screw nut pair of the present invention；
Fig. 5 is the structural schematic diagram of the sliding block in the present invention；
Fig. 6 is the schematic diagram of the electromagnet of the present invention.
Specific implementation mode
Fig. 1 is schematic structural view of the invention, as shown in the figure：The concrete composite pile base of the present embodiment, including implantation soil layer
Anti-settling stake, be coaxially coated at the pile cover 5 in anti-settling stake top portion, and be supported in the cushion cap 1 at the top of the pile cover 5；
The pile cover 5 is concrete prefabricated cylinder stake, is carried out filled with concrete 4 between pile cover 5 and anti-settling stake affixed；The anti-settling
Stake includes tube body 7, the anti-settling mechanism 6 being set in the tube body 7；It is in " ten " font that the anti-settling mechanism 6, which includes four,
The anti-heavy bar 11 of arrangement and with anti-heavy bar 11 it is one-to-one, for driving the anti-heavy bar 11 to stretch out four outside tube body 7
Feed screw nut pair；The lead screw 20 of each feed screw nut pair is equipped with bevel gear 22；When construction, after tube body 7 is implanted to soil layer,
The drive rod that one lower end is fixed with to cone fluted disc 14 is stretched into from the upper end of tube body 7 in tube body 7, and cone fluted disc 14 is made to be bored simultaneously with four
Gear 22 engages, and drive rod drives four lead screws 20 to rotate simultaneously by boring fluted disc 14, and lead screw 20 drives nut axially outward
Mobile to drive anti-heavy bar 11 protruding, four vias should be arranged certainly, on the side wall of tube body 7 makes anti-heavy bar 11 stretch out, to
Greatly improve the anti-settling ability of pile foundation.
In the present embodiment, the bottom of the cushion cap 1 is equipped with the circular groove for making pile cover 5 be embedded in；5 top of the pile cover is equipped with
The dolly 3 that flexible cellular plastic makes is equipped with plain concrete cushion layer 2 between the dolly 3 and cushion cap 1.
In the present embodiment, the anti-settling mechanism 6 further includes impact assembly；The impact assembly includes being snug fit at institute
The impact bar 10 in 11 centre bore of anti-heavy bar is stated, the spring 15 for impact bar 10 to be released to impact ground is fixed on impact bar
The permanent magnet of 10 ends, and it is set to the electromagnet in the tube body for attracting permanent magnet to make 10 compressed spring 15 of impact bar
17；During pushing resistance to plucking bar to stretch out using feed screw nut pair, it can be powered to electromagnet 17, to attract permanent magnet to drive
Impact bar 10 bounces back into tube body and compressed spring 15, is then powered off to electromagnet 17, impact bar 10 is under the action of spring 15
Ground is impacted in pop-up outward, external convenient for 11 protruded tube of anti-heavy bar to dig out hole position, reduces the resistance of anti-heavy bar 11
Power, the frequency being powered by controlling electromagnet 17, can control the frequency of the impact of impact bar 10.
In the present embodiment, it is equipped with the helicla flute extended around its axis in the centre bore of the anti-heavy bar 11, on impact bar 10
Equipped with the strut being slidably matched with the helicla flute, which is integrally formed the outer wall in impact bar 10, when impact bar 10 is in bullet
It when being slided relative to anti-heavy bar 11 under the promotion of spring 15, will be rotated about axis simultaneously, impact bar 10 enable by this rotation
Enough drilling bore hole positions in ground.
In the present embodiment, cross chassis 19 is equipped in the tube body；Correspondence is installed on ten to four feed screw nut pairs respectively
On four flanks on font chassis 19 (each lead screw 20 is by two bearing block supports on chassis 19), and four flanks
It is equipped with sliding slot；The nut of the feed screw nut pair is fixed with the sliding block 13 being in sliding fit with the sliding chute；The anti-heavy bar 11 is fixed
It is equipped with four tracks 8 in the axial direction in the inner wall of the sliding block 13, tube body, the outer of four flanks on cross chassis 19 is distinguished
It is slidably matched with four tracks, after tube body is inserted into the ground on ground, cross chassis 19 is set together with anti-settling mechanism one is logical
Enter into tube body；Cross chassis 19 is fixedly arranged in the middle of guiding trestle 21, and guiding trestle 21 is equipped with guide cylinder, the guide cylinder
Internal diameter slightly larger than cone fluted disc outer diameter, when need driving bevel gear 22 rotate when, can by drive rod 5 together with cone one piece of fluted disc
It is inserted into guide cylinder and passes through guide cylinder, guide cylinder that can be effectively oriented to drive rod, enable cone fluted disc smoothly
It is engaged with four bevel gears.
In the present embodiment, 13 both sides of the sliding block are integrally formed with support arm 27；The lower surface of the support arm 27 is circle
Cambered surface, and by the arc surface cross-arm on flank, sliding contact is formed between arc surface and flank upper surface, this contact is
Line contacts, and frictional resistance is smaller；The upper body of sliding block 13, which is fixed, is embedded with nut, and the lower body 28 of sliding block is equipped with for being interference fitted
The mounting hole 8 of anti-heavy bar.
In the present embodiment, the electromagnet 17 includes cruciform shaped core 25 and the First Line being wrapped on cruciform shaped core 25
Circle 23 and the second coil 24, iron core 25 include two orthogonal first bars and the second bar, first coil 23 and the second coil
24 are wound in the first bar and the second bar respectively, in use, can replace to first coil 23 and the energization of the second coil 24, alternately inhale
Draw two pairs of impact bars 10 and completes percussion action.
In the present embodiment, the bottom on the cross chassis 19 is fixed with and four impact bars, 10 one-to-one four bullets
Spring abutment 16；10 fixed jacket of the impact bar has snap ring 18, the spring 15 to be set between snap ring 18 and spring base 16；Snap ring
18 one side are practical as the supporting surface of spring 15, are on the other hand used as spacing ring, stretch out anti-heavy bar for limiting impact bar 10
11 maximum length.
In the present embodiment, the spring base 16 is made by high molecular material, is equipped with through-hole, the iron core 25 is fixed on logical
In hole, after iron core 25 passes through through-hole, iron core 25 and spring base 16 are relatively fixed using adhesive, therefore, spring base 16 is simultaneously
Support element as electromagnet 17 uses.
In the present embodiment, the outer end of the impact bar 10 forms 9 structure of drill bit, i.e. the outer end of impact bar 10 forms existing use
In the spinning movement of the 9 respective outer side edges impact bar 10 of drill bit of fractured rock, the effect of fractured rock is preferable.
Finally illustrate, the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although with reference to compared with
Good embodiment describes the invention in detail, it will be understood by those of ordinary skill in the art that, it can be to the skill of the present invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this
In the right of invention.
Claims (10)
1. a kind of concrete composite pile base, it is characterised in that：Anti-settling stake including being implanted into soil layer, it is described anti-heavy to be coaxially coated at
The pile cover in stake top portion is dropped, and is supported in the cushion cap at the top of the pile cover；The pile cover is concrete prefabricated cylinder stake, pile cover with it is anti-
It is affixed filled with concrete progress between sedimentation stake；The anti-settling stake includes the tube body of steel, is set in the tube body
Anti-settling mechanism；The anti-settling mechanism includes four and is corresponded in the anti-heavy bar of " ten " font arrangement and with anti-heavy bar
, four feed screw nut pairs for driving the anti-heavy bar protruded tube external；The lead screw of each feed screw nut pair is all provided with
There is bevel gear.
2. concrete composite pile base according to claim 1, it is characterised in that：The bottom of the cushion cap is equipped with for making stake
The circular groove of cap insertion.
3. concrete composite pile base according to claim 2, it is characterised in that：Flexible foam is equipped with above the pile cover to mould
Expect the dolly made, plain concrete cushion layer is equipped between the dolly and cushion cap.
4. concrete composite pile base according to claim 3, it is characterised in that：The anti-settling mechanism further includes impact group
Part；The impact assembly includes the impact bar being snug fit in the anti-heavy bar centre bore, is impacted for releasing impact bar
The spring of ground, is fixed on the permanent magnet of impact bar end, and is set in the tube body for attracting permanent magnet to make impact
The electromagnet of bar compressed spring.
5. concrete composite pile base according to claim 4, it is characterised in that：The inner headed face of the centre bore of the anti-heavy bar
It is equipped with the helicla flute extended around its axis, impact bar is equipped with the strut being slidably matched with the helicla flute.
6. concrete composite pile base according to claim 5, it is characterised in that：Cross chassis is equipped in the tube body；
Correspondence is installed on four flanks on cross chassis four feed screw nut pairs respectively, and four flanks are equipped with sliding slot；
The nut of the feed screw nut pair is fixed with the sliding block being in sliding fit with the sliding chute；The anti-heavy bar is fixed on the sliding block.
7. concrete composite pile base according to claim 6, it is characterised in that：The sliding block both sides are integrally formed with support
Arm；The lower surface of the support arm is arc surface, and by the arc surface cross-arm on flank.
8. concrete composite pile base according to claim 7, it is characterised in that：The electromagnet include cruciform shaped core and
The first coil being wrapped on cruciform shaped core and the second coil.
9. concrete composite pile base according to claim 8, it is characterised in that：The bottom on the cross chassis is fixed with
With four one-to-one spring bases of impact bar；The impact bar fixed jacket has snap ring, the spring to be set to snap ring and bullet
Between spring abutment.
10. concrete composite pile base according to claim 9, it is characterised in that：The spring base is by high molecular material system
Make, be equipped with through-hole, the iron core is fixed in through-hole, and the outer end of the impact bar forms drill bit structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810413061.9A CN108316331B (en) | 2018-05-03 | 2018-05-03 | Concrete composite pile foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810413061.9A CN108316331B (en) | 2018-05-03 | 2018-05-03 | Concrete composite pile foundation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108316331A true CN108316331A (en) | 2018-07-24 |
| CN108316331B CN108316331B (en) | 2020-01-24 |
Family
ID=62895601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810413061.9A Active CN108316331B (en) | 2018-05-03 | 2018-05-03 | Concrete composite pile foundation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108316331B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111809599A (en) * | 2020-07-27 | 2020-10-23 | 福建兴港建工有限公司 | Foundation anti-settlement structure and construction method |
| CN113006114A (en) * | 2021-02-10 | 2021-06-22 | 国机集团科学技术研究院有限公司 | Cap-shaped separated lock catch type raft foundation vibration isolation uplift pile design process |
| CN114045823A (en) * | 2021-11-12 | 2022-02-15 | 广东万宜基础工程有限公司 | Composite pile and construction method thereof |
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| CN201280720Y (en) * | 2008-09-08 | 2009-07-29 | 安徽省高速公路总公司 | Minor diameter self-balancing filling pile root key pushing device |
| CN202031104U (en) * | 2011-02-22 | 2011-11-09 | 陈东曙 | Composite pile |
| CN106638585A (en) * | 2016-11-25 | 2017-05-10 | 淮阴工学院 | Construction platform for facilitating root key construction of root type cast-in-place pile |
| CN106677173A (en) * | 2016-11-25 | 2017-05-17 | 淮阴工学院 | Root key construction device for root pouring pile |
| CN106759305A (en) * | 2017-03-03 | 2017-05-31 | 华北电力大学（保定） | It is a kind of reusable provisionally to descend foundation pile |
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2018
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Patent Citations (5)
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| CN201280720Y (en) * | 2008-09-08 | 2009-07-29 | 安徽省高速公路总公司 | Minor diameter self-balancing filling pile root key pushing device |
| CN202031104U (en) * | 2011-02-22 | 2011-11-09 | 陈东曙 | Composite pile |
| CN106638585A (en) * | 2016-11-25 | 2017-05-10 | 淮阴工学院 | Construction platform for facilitating root key construction of root type cast-in-place pile |
| CN106677173A (en) * | 2016-11-25 | 2017-05-17 | 淮阴工学院 | Root key construction device for root pouring pile |
| CN106759305A (en) * | 2017-03-03 | 2017-05-31 | 华北电力大学（保定） | It is a kind of reusable provisionally to descend foundation pile |
Non-Patent Citations (1)
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| 罗永新: "《数控加工中心应用指南》", 30 June 2008, 湖南科学技术出版社 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111809599A (en) * | 2020-07-27 | 2020-10-23 | 福建兴港建工有限公司 | Foundation anti-settlement structure and construction method |
| CN111809599B (en) * | 2020-07-27 | 2021-08-31 | 福建兴港建工有限公司 | Foundation anti-settlement structure and construction method |
| CN113006114A (en) * | 2021-02-10 | 2021-06-22 | 国机集团科学技术研究院有限公司 | Cap-shaped separated lock catch type raft foundation vibration isolation uplift pile design process |
| CN114045823A (en) * | 2021-11-12 | 2022-02-15 | 广东万宜基础工程有限公司 | Composite pile and construction method thereof |
| CN114045823B (en) * | 2021-11-12 | 2022-05-17 | 广东万宜基础工程有限公司 | Composite pile and construction method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108316331B (en) | 2020-01-24 |
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