CN107237319A - A kind of pile tube with post jacking Grouting Pipe and its construction method - Google Patents
A kind of pile tube with post jacking Grouting Pipe and its construction method Download PDFInfo
- Publication number
- CN107237319A CN107237319A CN201710470201.1A CN201710470201A CN107237319A CN 107237319 A CN107237319 A CN 107237319A CN 201710470201 A CN201710470201 A CN 201710470201A CN 107237319 A CN107237319 A CN 107237319A
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- China
- Prior art keywords
- pile
- tube
- grouting pipe
- pile tube
- grouting
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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
-
- 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
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- Engineering & Computer Science (AREA)
- General 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)
- Piles And Underground Anchors (AREA)
Abstract
The invention provides a kind of pile tube with post jacking Grouting Pipe, including pile tube body, pile tube the body interior steel pile tip that symmetrically arranged Grouting Pipe and pile tube body lower end are set centered on its axis；Correspondence Grouting Pipe offers slurry outlet on the steel pile tip, and the plugging plate for covering slurry outlet and can be opened by grouting pressure top is welded with correspondence slurry outlet location point.Wherein, Grouting Pipe is vertically arranged two.Pile tube body is that more piece docking is formed, and the Grouting Pipe includes several sections for matching of corresponding pile tube segmental length, and the slip casting tube segment is connected by tube coupling being connect close to pile tube body at section.The invention effectively improves concrete precast pipe pile bearing capacity of single pile, improves the modulus of compressibility of foundation soil, reduces the sedimentation of building, and reduction stake is long, reduces stake number, it is ensured that the stability of building, saves construction cost.
Description
Technical field
The invention belongs to concrete precast pipe pile field of engineering technology, more particularly, to a kind of band post jacking Grouting Pipe
Pile tube and its construction method.
Background technology
With the development of the city, building site is more and more nervous, and depth of building is also continuously increased, to foundation bearing capacity
It is required that also improving constantly, current small high-rise, skyscraper are in order to meet ground requirement for bearing capacity, and most of basement process is all selected
Concrete precast pipe pile, concrete precast pipe pile construction is limited by technique, is typically used in clay, silt and Soft Soil Layer, but
The bearing capacity of clay, silt and weak soil is smaller, and modulus of compressibility is small, while stake end at most can only enter in intense weathering munstone layer, stake
Hold bearing capacity it is very small, design calculate when be generally to be designed calculating by frictional force in side-pile, cause engineering pile stake it is long compared with
Long, stake number is more.
The content of the invention
In view of this, the invention is intended to overcome defect present in above-mentioned prior art, proposes a kind of band post jacking
The pile tube and its construction method of Grouting Pipe.
To reach above-mentioned purpose, what the technical scheme of the invention was realized in：
A kind of pile tube with post jacking Grouting Pipe, including pile tube body, pile tube body interior are symmetrical centered on its axis
The steel pile tip that the Grouting Pipe of setting and pile tube body lower end are set；Correspondence Grouting Pipe offers slurry outlet on the steel pile tip,
The plugging plate for covering slurry outlet and can be opened by grouting pressure top is welded with correspondence slurry outlet location point.
Further, the Grouting Pipe is vertically arranged two.
Further, the pile tube body is that more piece docking is formed, and it is long that the Grouting Pipe includes corresponding pile tube section
Spend several sections for matching, the slip casting tube segment is connected by tube coupling being connect close to pile tube body at section.
Further, the slip casting tube segment top is less than corresponding pile tube section top 20-40mm.
A kind of construction method using the above-mentioned pile tube with post jacking Grouting Pipe, comprises the following steps：
1. press pile tube segmental length and make matched slip casting tube segment；
2. steel pile tip is made, and injected hole is opened up on steel pile tip, correspondence injected hole is in steel pile tip upper end welding Grouting Pipe
Section, is used to cover in slurry outlet and the plugging plate that can be opened by grouting pressure top in the spot welding of steel pile tip lower end；
3. steel pile tip is welded on first segment pile tube lower end, first segment Grouting Pipe is weldingly fixed on first segment pipe
Stake inwall, lifts the pile tube section, piling to pile extension height；
4. in each slip casting tube segment being connected with steel pile tip, second section Grouting Pipe is connected by tube coupling；Lifting the
Two section pile tubes, progress and the pile connection construction of first segment pile tube, piling afterwards, then repeatedly Grouting Pipe is connected and tubular pile splicing
Construction, until last section tube pile construction is finished；
5. grouting pipeline on grouting pump is connected with the Grouting Pipe in pile tube, open grouting pump, by design grouting pressure and
Grouting amount slip casting.
Further, the injected hole on steel pile tip is symmetrical set two.
Further, when by last section pile tube piling to top surface apart from ground 1m or so, the pipe cap in its top tape,
Pile follower is to designed elevation afterwards.
Further, when stake end is clay, the grouting pressure used is 2MPa, and grouting amount is 2t.
Relative to prior art, the invention has the advantage that：
The pile tube with post jacking Grouting Pipe and construction method that the invention is provided, are particularly suitable for use in geological conditions poor
Clay, the concrete precast pipe pile foundation treatment engineering of soft soil foundation.Concrete precast pipe pile single pile bearing can be effectively improved
Power, improves the modulus of compressibility of foundation soil, reduces the sedimentation of building, and reduction stake is long, reduces stake number, it is ensured that the stabilization of building
Property, save construction cost.
Brief description of the drawings
The accompanying drawing for constituting the part of the invention is used for providing further understanding the invention, present invention wound
The schematic description and description made is used to explain the invention, does not constitute the improper restriction to the invention.
In accompanying drawing：
Fig. 1 is the structural representation of the invention；
Fig. 2 is Fig. 1 upward view；
Fig. 3 connects the structure sectional view at section for pile tube in the invention；
Fig. 4 is steel pile tip and the structure section view of pile tube junction in the invention.
Description of reference numerals：
1- pile tube bodies；2- Grouting Pipes；3- steel pile tips；4- slurry outlets；5- plugging plates；6- pile tubes section；7- slip casting tube couplings
Section；8- tube couplings；9- pile tube bodies are connect at section.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the invention can
To be mutually combined.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ",
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of description the invention and simplifies description, rather than indicate
Or imply that the device or element of meaning must have specific orientation, with specific azimuth configuration and operation, therefore be not understood that
For the limitation to the invention.In addition, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicating
Or imply relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, " first ", " second " etc. are defined
Feature can express or implicitly include one or more this feature.In the description of the invention, unless separately
It is described, " multiple " are meant that two or more.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in the description of the invention
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, on being understood by concrete condition
State concrete meaning of the term in the invention.
Describe the invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
A kind of pile tube with post jacking Grouting Pipe, as shown in Figures 1 to 4, including with it inside pile tube body 1, pile tube body 1
The steel pile tip 3 that symmetrically arranged Grouting Pipe 2 and the lower end of pile tube body 1 are set centered on axis；Correspondence on the steel pile tip 3
Grouting Pipe offers slurry outlet 4, is welded with the correspondence location point of slurry outlet 4 for covering slurry outlet and can be opened by grouting pressure top
Plugging plate 5.
Above-mentioned Grouting Pipe 2 is vertically arranged two, accordingly, and the injected hole on steel pile tip is symmetrical set two.Slip casting
When, symmetrically from pile tube both sides pulp, it is ensured that fully contact, mix with stake end clay.
Above-mentioned pile tube body 1 is that more piece docking is formed, as shown in figure 1, including multiple pile tube sections 6, accordingly, the note
Slurry pipe 2 includes several sections that corresponding pile tube segmental length matches, as shown in figure 1, including several slip casting tube couplings
Section 7；The slip casting tube segment is connected by tube coupling 8 connecing at section 9 close to pile tube body.Either pile tube or Grouting Pipe connect
Continuous all very convenient, construction is simple, it is easy to operate, it is to avoid the construction inconvenience that long length pile tube section or Grouting Pipe are brought.
During construction, the above-mentioned top of slip casting tube segment 7 is less than the corresponding top 20-40mm of pile tube section 6.Work as Grouting Pipe
After 2 upper ends connection tube coupling 8, the top surface of tube coupling 8 is less than pile tube top surface 10-20mm of corresponding section or so, in order in piling
During, the pipe that Grouting Pipe will not be directly touched when Driven Piles or static pressed pile is connected, and will not damage Grouting Pipe.
A kind of construction method of the above-mentioned pile tube with post jacking Grouting Pipe, comprises the following steps：
1. press pile tube segmental length and make matched slip casting tube segment；
2. steel pile tip is made, and injected hole is opened up on steel pile tip, correspondence injected hole is in steel pile tip upper end welding Grouting Pipe
Section, is used to cover in slurry outlet and the plugging plate that can be opened by grouting pressure top in the spot welding of steel pile tip lower end；It may be noted that
It is that plugging plate is mainly used in preventing debris from entering Grouting Pipe during piling, while it is also to be ensured that in slip casting, grouting pressure can be by it
Open on top；
3. steel pile tip is welded on first segment pile tube lower end, first segment Grouting Pipe is weldingly fixed on first segment pipe
Stake inwall, lifts the pile tube section, piling to pile extension height；
4. in each slip casting tube segment being connected with steel pile tip, second section Grouting Pipe is connected by tube coupling；Lifting the
Two section pile tubes, progress and the pile connection construction of first segment pile tube, piling afterwards, then repeatedly Grouting Pipe is connected and tubular pile splicing
Construction, until last section tube pile construction is finished；
It is pointed out that when by last section pile tube hammering or static pressure to apart from ground 1000mm or so, in note
Slurry pipe takes pipe cap, and the end plate inwall of pipe cap and pile tube is welded and fixed, and is then further continued for downward pile follower to designed elevation；
5. finished in tube pile construction, excavation of foundation pit exposes after tubular pile head, carry out the construction of pile tube grouting behind shaft or drift lining, it is necessary to explanation
It is before grouting behind shaft or drift lining construction, first the pipe cap at the top of Grouting Pipe to be taken out, the Grouting Pipe in the Grouting Pipe and pile tube on grouting pump is entered
Row connection, is then turned on grouting pump, by design grouting pressure and grouting amount slip casting.
Generally, when stake end is clay, 5. the middle grouting pressure used is 2MPa to arrangement, and grouting amount is 2t.
The invention is by the way that to concrete precast pipe pile post grouting under pile, the clay and cement mortar for making pipe pile end are formed
Fine and close soil cement, improves the modulus of compressibility of concrete tubular pile stake end and stake surrounding soil, so as to improve concrete precast pipe pile
Bearing capacity of single pile and reduce building settling amount.
The preferred embodiment of the invention is the foregoing is only, creation is not intended to limit the invention, it is all at this
Within the spirit and principle of innovation and creation, any modification, equivalent substitution and improvements made etc. should be included in the invention
Protection domain within.
Claims (8)
1. a kind of pile tube with post jacking Grouting Pipe, it is characterised in that：Including pile tube body, pile tube body interior using its axis as
The steel pile tip that the Grouting Pipe and pile tube body lower end that Central Symmetry is set are set；Correspondence Grouting Pipe is opened up on the steel pile tip
There is slurry outlet, the plugging plate for covering slurry outlet and can be opened by grouting pressure top is welded with correspondence slurry outlet location point.
2. a kind of pile tube with post jacking Grouting Pipe according to claim 1, it is characterised in that：The Grouting Pipe is set vertically
Put two.
3. a kind of pile tube with post jacking Grouting Pipe according to claim 1, it is characterised in that：The pile tube body is many
Section docking is formed, and the Grouting Pipe includes several sections that corresponding pile tube segmental length matches, the slip casting tube coupling
Section is connected by tube coupling being connect close to pile tube body at section.
4. a kind of pile tube with post jacking Grouting Pipe according to claim 3, it is characterised in that：The slip casting tube segment top
End is less than corresponding pile tube section top 20-40mm.
5. the construction method of the pile tube with post jacking Grouting Pipe described in a kind of utilization claim 1, it is characterised in that including as follows
Step：
1. press pile tube segmental length and make matched slip casting tube segment；
2. steel pile tip is made, and injected hole is opened up on steel pile tip, injected hole is corresponded to and welds slip casting tube segment in steel pile tip upper end,
It is used to cover in slurry outlet and the plugging plate that can be opened by grouting pressure top in the spot welding of steel pile tip lower end；
3. steel pile tip is welded on first segment pile tube lower end, first segment Grouting Pipe is weldingly fixed in first segment pile tube
Wall, lifts the pile tube section, piling to pile extension height；
4. in each slip casting tube segment being connected with steel pile tip, second section Grouting Pipe is connected by tube coupling；Lift second section
Section pile tube, progress and the pile connection construction of first segment pile tube, piling afterwards, then repeatedly Grouting Pipe connection and tubular pile splicing are applied
Work, until last section tube pile construction is finished；
5. grouting pipeline on grouting pump is connected with the Grouting Pipe in pile tube, opens grouting pump, by design grouting pressure and slip casting
Measure slip casting.
6. construction method according to claim 5, it is characterised in that：Injected hole on steel pile tip is symmetrical set two
It is individual.
7. construction method according to claim 5, it is characterised in that：By last section pile tube piling to top surface distance
During ground 1m or so, the pipe cap in its top tape, pile follower is to designed elevation afterwards.
8. construction method according to claim 5, it is characterised in that：When stake end is clay, the slip casting of 5. middle use is arranged
Pressure is 2MPa, and grouting amount is 2t.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710470201.1A CN107237319B (en) | 2017-06-20 | 2017-06-20 | A kind of tubular pole and its construction method with post jacking Grouting Pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710470201.1A CN107237319B (en) | 2017-06-20 | 2017-06-20 | A kind of tubular pole and its construction method with post jacking Grouting Pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107237319A true CN107237319A (en) | 2017-10-10 |
| CN107237319B CN107237319B (en) | 2019-09-20 |
Family
ID=59986477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710470201.1A Active CN107237319B (en) | 2017-06-20 | 2017-06-20 | A kind of tubular pole and its construction method with post jacking Grouting Pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107237319B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110952546A (en) * | 2019-11-12 | 2020-04-03 | 浙江二十冶建设有限公司 | Tubular pile construction method |
| CN113266013A (en) * | 2021-04-21 | 2021-08-17 | 隋付仁 | Pile end pressure grouting construction process for prestressed concrete pipe pile |
| CN113882363A (en) * | 2021-10-26 | 2022-01-04 | 中建三局第一建设工程有限责任公司 | Pile end post-grouting device, grouting method and construction method for CFG pile |
| CN114411727A (en) * | 2022-02-25 | 2022-04-29 | 南京东土建设科技有限公司 | Built-in post-grouting device for realizing multi-depth grouting of tubular pile |
| CN115012398A (en) * | 2022-06-29 | 2022-09-06 | 国网江苏省电力工程咨询有限公司 | Large-diameter steel pipe concrete structure and construction method |
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| CN2425952Y (en) * | 1999-04-30 | 2001-04-04 | 中国第一冶金建设公司技术开发公司 | Mud-pressing, soil-retaining and water-stopping foundation pit supporting and mud-pressing apparatus after pile pouring |
| CN2663516Y (en) * | 2003-10-30 | 2004-12-15 | 北京城建集团有限责任公司 | Back pressing slurry injecting device to side and bottom of pile in drilling caisson pile procession |
| KR101620558B1 (en) * | 2015-10-30 | 2016-05-12 | 원우산업개발 주식회사 | Composite pile using multi support plate and the construction method therefor |
| KR101635529B1 (en) * | 2015-11-17 | 2016-07-04 | 이강수 | Composite pile construction method |
| CN206052722U (en) * | 2016-08-11 | 2017-03-29 | 樊杰 | A kind of device of prestressed pipe post-pressure grouting |
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2017
- 2017-06-20 CN CN201710470201.1A patent/CN107237319B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2425952Y (en) * | 1999-04-30 | 2001-04-04 | 中国第一冶金建设公司技术开发公司 | Mud-pressing, soil-retaining and water-stopping foundation pit supporting and mud-pressing apparatus after pile pouring |
| CN2663516Y (en) * | 2003-10-30 | 2004-12-15 | 北京城建集团有限责任公司 | Back pressing slurry injecting device to side and bottom of pile in drilling caisson pile procession |
| KR101620558B1 (en) * | 2015-10-30 | 2016-05-12 | 원우산업개발 주식회사 | Composite pile using multi support plate and the construction method therefor |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110952546A (en) * | 2019-11-12 | 2020-04-03 | 浙江二十冶建设有限公司 | Tubular pile construction method |
| CN113266013A (en) * | 2021-04-21 | 2021-08-17 | 隋付仁 | Pile end pressure grouting construction process for prestressed concrete pipe pile |
| CN113882363A (en) * | 2021-10-26 | 2022-01-04 | 中建三局第一建设工程有限责任公司 | Pile end post-grouting device, grouting method and construction method for CFG pile |
| CN114411727A (en) * | 2022-02-25 | 2022-04-29 | 南京东土建设科技有限公司 | Built-in post-grouting device for realizing multi-depth grouting of tubular pile |
| CN114411727B (en) * | 2022-02-25 | 2024-02-20 | 南京东土建设科技有限公司 | Built-in post grouting device for realizing multi-depth grouting of tubular piles |
| CN115012398A (en) * | 2022-06-29 | 2022-09-06 | 国网江苏省电力工程咨询有限公司 | Large-diameter steel pipe concrete structure and construction method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107237319B (en) | 2019-09-20 |
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