CN107012861A - A kind of discrete material core expansive concrete stake and its construction method - Google Patents
A kind of discrete material core expansive concrete stake and its construction method Download PDFInfo
- Publication number
- CN107012861A CN107012861A CN201710168970.6A CN201710168970A CN107012861A CN 107012861 A CN107012861 A CN 107012861A CN 201710168970 A CN201710168970 A CN 201710168970A CN 107012861 A CN107012861 A CN 107012861A
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- China
- Prior art keywords
- stake
- discrete material
- concrete
- pile
- steel
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Classifications
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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
- E02D5/385—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds with removal of the outer mould-pipes
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
Abstract
The present invention provides a kind of discrete material core expansive concrete stake and its construction method.The discrete material core expansive concrete stake includes the stake of concrete semi-hollow and discrete material pile core.The interior intracavitary of the concrete semi-hollow stake is filled with discrete material pile core.The construction method of the discrete material core expansive concrete stake is pushed including pore-forming, steel-pipe pile mould, all concrete, input pile body center discrete material, vibration pile pulling mould and benefit starch the steps such as pile to bored concrete pile in vitro.The discrete material core expansive concrete stake pile body center discrete material good integrity, intensity is high.Pile body total bearing capacity is high, and rigidity is big.Construction cost is low, low-carbon green.It can be widely applied in foundation engineering.
Description
Technical field
The present invention relates to civil construction project technical field, more particularly to a kind of discrete material core expansive concrete stake and its
Construction method.
Background technology
In China Democratic National Construction Association, road, harbour, science of bridge building, pile foundation is extensive.Current solid concrete bored concrete pile and broken stone pile
It is common pile foundation type in engineering Deng discrete material pile.The ultimate bearing capacity of pile foundation depends on the frictional resistance that pile peripheral earth is provided
The small value of power limiting value and self structure bearing capacity limiting value.When pile body reaches capacity bearing capacity, the mixed stake of solid concrete stake
Body structure bearing capacity is much larger than the frictional resistance that pile peripheral earth is provided, and unit materials utilization rate is low；Discrete material pile is due to its pile body
Lateral rigidity is smaller, easily produces oxygen blast cyanidation, and bearing capacity is relatively low, it is impossible to give full play to the frictional resistance and end bearing of soil body offer
Power, it is difficult to obtain larger bearing capacity.In addition, with China's urban construction and the quickening of Support during Old City Reconstruction process, generating very
How the building wastes such as many waste bricks, concrete block, produce stock utilization height, pile body structure using these building wastes
Bearing capacity and Skin friction, which are played, more to be balanced, and low-carbon green makes full use of the pile-type of building waste, is to be worth research
Problem.
The content of the invention
It is an object of the invention to provide a kind of low-carbon green, using building waste and the good discrete material core of pile-forming effect
Expansive concrete stake and its construction method, are solved in the prior art, and pile foundation globality poor, bearing capacity and stiffness are low and construct
The problems such as cost is high.
For realize technical scheme that the object of the invention is used be it is such, a kind of discrete material core expansive concrete stake
Construction method, comprises the following steps：
1) according to geological conditions, stake holes is drilled with to projected depth in soil layer using rig.
2) hoisting steel pipe pile mould, align piles position, adjusts the perpendicularity of steel-pipe pile mould, then presses and steel-pipe pile molding is buried
To designed elevation in layer.Wherein, the steel-pipe pile mould is the hollow circular cylinder of upper and lower side opening.
3) concrete slurry is injected by grouting pump between steel-pipe pile mould and stake holes hole wall.
4) discrete material is put into steel-pipe pile mold cavity, discrete material pile core is formed.Wherein, the discrete material pile core
Top is less than stake top.
5) steel-pipe pile mould is pulled up in vibration by machine, in the process, every concrete of a segment distance after-teeming
Slurries.
6) after-teeming concrete slurry is carried out when steel-pipe pile mould reaches stake top, until pile pulling mould is completed.Wherein, the coagulation
Soil paste liquid did not had discrete material pile core, and concrete slurry is filled to stake top and grading.Stake top bleeding is abundant.Concrete slurry
Consolidation forms the stake of concrete semi-hollow.
Further, step 1) described in stake holes use mud off.
Further, step 2) in, it is put into before steel-pipe pile mould, is additionally included in the correlation step of injection mud borehole cleaning in stake holes.
Further, the lower end open-mouth of the steel-pipe pile mould has sharp cutting knife.
Further, step 3) in, before injection concrete slurry, it is additionally included between steel-pipe pile mould and stake holes hole wall and injects mud
Borehole cleaning, borehole cleaning is put into the correlation step of steel reinforcement cage after finishing.
Further, the concrete uses expansive concrete.
Invention additionally discloses the discrete material core expansive concrete stake that a kind of use above method is made, including implantation soil layer
Interior concrete semi-hollow stake and discrete material pile core.
The concrete semi-hollow stake includes filled circles stanchion and hollow shell pill.The hollow shell pill is arranged at solid cylinder
The bottom of stake.The filled circles stanchion and hollow shell pill are an entirety.
The interior intracavitary of the hollow shell pill is filled with discrete material pile core.The discrete material of the discrete material pile core is used
Building waste and/or rubble.The concrete semi-hollow stake and discrete material pile core rubber knot are solidified as an entirety.
Further, there is pile body cage bar and pile body tie hoop in the concrete semi-hollow stake.The pile body cage bar and
Pile body tie hoop collectively forms steel reinforcement cage.
Further, the steel reinforcement cage is spliced by more piece steel reinforcement cage.Each section steel reinforcement cage is by the way of welding or riveting
It is fixed.
The solution have the advantages that unquestionable：
A) pile body center discrete material good integrity, intensity is high.Pile body total bearing capacity is high, and rigidity is big；
B) pile body periphery expansive concrete pile body is built into after steel reinforcement cage and can used as uplift pile；
C) pile body center discrete material can use building waste, reduce construction cost, low-carbon green；
D) construction technology is simply clear, and speed of application is fast, and pile-forming effect is good.
Brief description of the drawings
Fig. 1 is discrete material core expansive concrete pilework schematic diagram；
Fig. 2 is Section A-A figure；
Fig. 3 is steel-pipe pile mode structure schematic diagram；
Fig. 4 is discrete material core expansive concrete pile driving construction schematic flow sheet.
In figure：Discrete material pile core 1, concrete semi-hollow stake 2, filled circles stanchion 201, hollow shell pill 202, reinforcing bar
Cage 3, pile body cage bar 301, pile body tie hoop 302, steel-pipe pile mould 4.
Embodiment
With reference to embodiment, the invention will be further described, but should not be construed above-mentioned subject area of the invention only
It is limited to following embodiments.Without departing from the idea case in the present invention described above, according to ordinary skill knowledge and used
With means, various replacements and change are made, all should be included within the scope of the present invention.
Embodiment 1：
The present embodiment discloses a kind of construction method of discrete material core expansive concrete stake, referring to Fig. 4, including following step
Suddenly：
1) pore-forming：According to geological conditions, stake holes is drilled with to projected depth in soil layer using rig.Wherein, the stake holes
Using mud off.
2) steel-pipe pile mould is pushed：Mud borehole cleaning is injected in stake holes.Hoisting steel pipe pile mould 4, align piles position, adjusts steel-pipe pile
The perpendicularity of mould 4.Then press and steel-pipe pile mould 4 is pressed into soil layer to designed elevation.Referring to Fig. 3, the steel-pipe pile mould 4 is upper
The hollow circular cylinder of lower end opening.The lower end open-mouth of the steel-pipe pile mould 4 has sharp cutting knife.The cutting knife patchhole
Depth >=0.5 meter at bottom.
3) the external all expansive concretes of bored concrete pile：Mud borehole cleaning is injected between steel-pipe pile mould 4 and stake holes hole wall, borehole cleaning is finished
After be put into steel reinforcement cage 3.Expansive concrete slurries are injected by grouting pump between steel-pipe pile mould 4 and stake holes hole wall.
4) input pile body center discrete material：Discrete material is put into the inner chamber of steel-pipe pile mould 4, discrete material pile core is formed
1.Wherein, the top of discrete material pile core 1 is less than stake top.
5) pile pulling mould is vibrated：Steel-pipe pile mould 4 is pulled up in vibration by machine, in the process, part expansion coagulation
Soil paste liquid can enter in discrete material pile core 2, cause a periphery Starch Level reduction.Stake mould often extracts swelled mixture of 2 meters of after-teemings
Solidifying soil paste liquid.
6) slurry pile is mended：After-teeming expansive concrete slurries are carried out when steel-pipe pile mould 4 reaches stake top, until pile pulling mould is complete
Into.Wherein, the expansive concrete slurries did not had discrete material pile core 1, and expansive concrete slurries are filled to stake top and earth's surface and put down
It is whole.Stake top bleeding is abundant.Expansive concrete slurry consolidation formation expansive concrete semi-hollow stake 2.
Concrete semi-hollow 2 pairs of discrete material pile cores 1 of stake have crowd in-out effects.Meanwhile, a part of expansive concrete slurries enter
Enter discrete material and play cementing reinforcement effect.Concrete semi-hollow stake 2 also produces constraint to discrete material pile core 1 and improves its rigidity,
Prevent it from laterally occurring oxygen blast cyanidation influence pile body bearing capacity.
Embodiment 2：
The discrete material core expansive concrete stake that a kind of methods described of use embodiment 1 is made, including in implantation soil layer
Concrete semi-hollow stake 2 and discrete material pile core 1.
Referring to Fig. 1, the concrete semi-hollow stake 2 includes filled circles stanchion 201 and hollow shell pill 202.The hollow pipe
Stake 202 is arranged at the bottom of filled circles stanchion 201.The filled circles stanchion 201 and hollow shell pill 202 are an entirety.Referring to
There is pile body cage bar 301 and pile body tie hoop 302 in Fig. 2, the concrete semi-hollow stake 2.The pile body cage bar 301 and stake
Body tie hoop 302 collectively forms steel reinforcement cage 3.The steel reinforcement cage 3 is spliced by more piece steel reinforcement cage.Each section steel reinforcement cage is using weldering
The mode for connecing or riveting is fixed.
The interior intracavitary of the hollow shell pill 202 is filled with discrete material pile core 1.The granular media material of the discrete material pile core 1
Material uses building waste and/or rubble.Concrete semi-hollow stake 2 and discrete material pile core 1 is cementing is solidified as an entirety.
Claims (9)
1. a kind of construction method of discrete material core expansive concrete stake, it is characterised in that comprise the following steps：
1) according to geological conditions, stake holes is drilled with to projected depth in soil layer using rig；
2) hoisting steel pipe pile mould (4), align piles position, the perpendicularity of adjustment steel-pipe pile mould (4) then presses steel-pipe pile mould (4)
It is pressed into soil layer to designed elevation；Wherein, the steel-pipe pile mould (4) is the hollow circular cylinder of upper and lower side opening；
3) concrete slurry is injected by grouting pump between steel-pipe pile mould (4) and stake holes hole wall；
4) discrete material is put into steel-pipe pile mould (4) inner chamber, discrete material pile core (1) is formed；Wherein, the discrete material pile
It is less than stake top at the top of core (1)；
5) steel-pipe pile mould (4) is pulled up in vibration by machine, in the process, every concrete grout of a segment distance after-teeming
Liquid；
6) after-teeming concrete slurry is carried out when steel-pipe pile mould (4) reaches stake top, until pile pulling mould is completed；Wherein, the coagulation
Soil paste liquid did not had discrete material pile core (1), and concrete slurry is filled to stake top and grading；Stake top bleeding is abundant；Concrete
Slurry consolidation formation concrete semi-hollow stake (2).
2. a kind of construction method of discrete material core expansive concrete stake according to claim 1, it is characterised in that：Step
1) stake holes uses mud off described in.
3. a kind of construction method of discrete material core expansive concrete stake according to claim 1, it is characterised in that：Step
2) in, it is put into before steel-pipe pile mould (4), is additionally included in the correlation step of injection mud borehole cleaning in stake holes.
4. a kind of construction method of discrete material core expansive concrete stake according to claim 1, it is characterised in that：It is described
The lower end open-mouth of steel-pipe pile mould (4) has sharp cutting knife.
5. a kind of construction method of discrete material core expansive concrete stake according to claim 1, it is characterised in that：Step
3) in, before injection concrete slurry, injection mud borehole cleaning between steel-pipe pile mould (4) and stake holes hole wall is additionally included in, after borehole cleaning is finished
It is put into the correlation step of steel reinforcement cage (3).
6. a kind of construction method of discrete material core expansive concrete stake according to claim 1, it is characterised in that：It is described
Concrete uses expansive concrete.
7. the discrete material core expansive concrete stake that a kind of use claim 1 methods described is made, it is characterised in that：Including planting
Concrete semi-hollow stake (2) and discrete material pile core (1) in underground layer；
The concrete semi-hollow stake (2) includes filled circles stanchion (201) and hollow shell pill (202)；The hollow shell pill (202)
It is arranged at the bottom of filled circles stanchion (201)；The filled circles stanchion (201) and hollow shell pill (202) are an entirety；
The interior intracavitary of the hollow shell pill (202) is filled with discrete material pile core (1)；The granular media of the discrete material pile core (1)
Material uses building waste and/or rubble；Concrete semi-hollow stake (2) and discrete material pile core (1) is cementing is solidified as one
Individual entirety.
8. a kind of discrete material core expansive concrete stake according to claim 7, it is characterised in that：The concrete is in midair
There is pile body cage bar (301) and pile body tie hoop (302) in heart stake (2)；The pile body cage bar (301) and pile body tie hoop
(302) steel reinforcement cage (3) is collectively formed.
9. a kind of discrete material core expansive concrete stake according to claim 8, it is characterised in that：The steel reinforcement cage (3)
It is spliced by more piece steel reinforcement cage；Each section steel reinforcement cage is fixed by the way of welding or riveting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710168970.6A CN107012861B (en) | 2017-03-21 | 2017-03-21 | A kind of discrete material core expansive concrete stake and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710168970.6A CN107012861B (en) | 2017-03-21 | 2017-03-21 | A kind of discrete material core expansive concrete stake and its construction method |
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| Publication Number | Publication Date |
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| CN107012861A true CN107012861A (en) | 2017-08-04 |
| CN107012861B CN107012861B (en) | 2019-01-25 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109577307A (en) * | 2019-01-10 | 2019-04-05 | 上海市市政规划设计研究院有限公司 | Combination of rigidity and flexibility stake and its construction method |
| CN111254909A (en) * | 2020-01-18 | 2020-06-09 | 陕西建工基础建设集团有限公司 | Composite pile foundation construction process for soft soil area foundation and composite pile foundation |
| CN111733799A (en) * | 2020-06-10 | 2020-10-02 | 合肥工业大学 | Forming method for self-wall-protection large-diameter concrete hollow pipe column foundation |
| CN114908736A (en) * | 2022-06-16 | 2022-08-16 | 西藏大学 | Novel pile foundation suitable for soft soil foundation treatment and construction method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3848512B1 (en) * | 2020-01-07 | 2023-08-16 | BAUER Spezialtiefbau GmbH | Method for creating a foundation element in the ground and foundation element |
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| CN102505684B (en) * | 2011-11-02 | 2014-09-10 | 河海大学 | Hollow stiffness-core slurry-solidified discrete material pile and construction method thereof |
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| KR20120119581A (en) * | 2011-04-22 | 2012-10-31 | 한국건설기술연구원 | Constructing method of steel pile in sea ground |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109577307A (en) * | 2019-01-10 | 2019-04-05 | 上海市市政规划设计研究院有限公司 | Combination of rigidity and flexibility stake and its construction method |
| CN111254909A (en) * | 2020-01-18 | 2020-06-09 | 陕西建工基础建设集团有限公司 | Composite pile foundation construction process for soft soil area foundation and composite pile foundation |
| CN111254909B (en) * | 2020-01-18 | 2022-06-14 | 陕西建工基础建设集团有限公司 | Construction process of composite pile foundation of soft soil area foundation |
| CN111733799A (en) * | 2020-06-10 | 2020-10-02 | 合肥工业大学 | Forming method for self-wall-protection large-diameter concrete hollow pipe column foundation |
| CN114908736A (en) * | 2022-06-16 | 2022-08-16 | 西藏大学 | Novel pile foundation suitable for soft soil foundation treatment and construction method thereof |
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| Publication number | Publication date |
|---|---|
| CN107012861B (en) | 2019-01-25 |
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