CN106436703A - PHC pipe pile for post-grouting and post-grouting construction process thereof - Google Patents
PHC pipe pile for post-grouting and post-grouting construction process thereof Download PDFInfo
- Publication number
- CN106436703A CN106436703A CN201610862932.6A CN201610862932A CN106436703A CN 106436703 A CN106436703 A CN 106436703A CN 201610862932 A CN201610862932 A CN 201610862932A CN 106436703 A CN106436703 A CN 106436703A
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- CN
- China
- Prior art keywords
- slip casting
- grouting
- cylinder
- casting cylinder
- pile
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- 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.)
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Classifications
-
- 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
- E02D5/58—Prestressed concrete piles
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/003—Injection of material
Abstract
The invention relates to a PHC pipe pile for post-grouting and a post-grouting construction process thereof, belongs to the technical field of construction, and provides the PHC pipe pile for post-grouting with simple construction, low manufacturing cost and effective improvement of the bearing capacity of a prestressed pipe pile, and the post-grouting construction process thereof. A grouting cylinder is arranged at the bottom of the prestressed pipe pile; multiple grouting holes are formed in the wall of the grouting cylinder; a baseplate is arranged at the bottom of the grouting cylinder; a sealing plate is arranged at the top of the grouting cylinder; and a grouting pipe communicated with the grouting cylinder is arranged in the prestressed pipe pile. The PHC pipe pile for post-grouting is widely applied to the prestressed pipe piles.
Description
Technical field
The present invention relates to a kind of PHC pile tube for grouting behind shaft or drift lining and grouting behind shaft or drift lining construction technology thereof, belong to building construction technology
Field.
Background technology
Pile for prestressed pipe is prefabrication reinforced concrete member, and as house foundation bearing capacity component, its intensity is high, holds
Load power is strong.But if if bearing capacity of foundation slab is more weak, effective length is too short, can not meet requirement for bearing capacity, and effective length is too
Long then uneconomical；Pile for prestressed pipe is friction end-bearing pile simultaneously, and owing to stake end area is too little, end resistance is less, affects prestressing force
The bearing capacity of pile tube.
Content of the invention
For solving the technical problem that prior art exists, the invention provides a kind of construction simple, cost is low, effectively improves
The PHC pile tube for grouting behind shaft or drift lining of prestressed pipe pile bearing capacity and grouting behind shaft or drift lining construction technology thereof.
For achieving the above object, the technical solution adopted in the present invention is the PHC pile tube for grouting behind shaft or drift lining, including prestressing force
Pile tube, the bottom of described pile for prestressed pipe is provided with slip casting cylinder, and the barrel of described slip casting cylinder is provided with multiple injected hole, described
The bottom of slip casting cylinder is provided with base plate, and the top of slip casting cylinder is provided with sealing plate, is provided with and slip casting in described pile for prestressed pipe
The Grouting Pipe of cylinder connection.Form soil cement enlarged footing at the bottom of stake by grouting behind shaft or drift lining construction technology, effectively improve end resistance.
Preferably, described slip casting cylinder is pyramidal structure, or is cylindrical structural.
Preferably, the diameter of described base plate is more than the diameter of slip casting cylinder, and rigidity meets the requirement of born pressure, and tool
Standby cause its top soil body loose and injected hole can be opened when slip casting effect.
Preferably, the barrel of described slip casting cylinder is provided with many and strengthens gusset and guard aperture plate, the barrel of described slip casting cylinder
And its strength and stiffness of reinforcement meet the requirement of born pressure, described guard aperture plate is yi word pattern or L-type, described guard aperture
Plate is positioned at the lower section of injected hole.
Preferably, being filled with metalling in described slip casting cylinder, the ballast grain sizes of described metalling is more than or equal to 40mm.
Preferably, described sealing plate is provided with slip casting connecting tube, described slip casting connecting tube is provided with pipe joint.
A kind of PHC pile tube grouting behind shaft or drift lining construction technology, follows the steps below operation,
A, making slip casting cylinder, offer injected hole on the barrel of steel cylinder, at steel cylinder bottom welding base plate, welds on steel cylinder outer wall
Strengthening gusset and guard aperture plate, perforate on sealing plate, welding slip casting connects tube head, is then filled in rubble in steel cylinder, then will
Sealing plate is welded on steel cylinder, and slip casting cylinder completes；
B, connection Grouting Pipe are in slip casting cylinder, then slip casting cylinder welds flange at the bottom of the stake of pile for prestressed pipe；
C, then by the pile for prestressed pipe in step b by static pressure machine be pressed into foundation soil supporting course；
D, then carrying out high-pressure slip-casting by Grouting Pipe again, maintenance after slip casting completes can carry out static test inspection after 28 days
Its bearing capacity.
Preferably, described cement mortar uses 52.5R ordinary portland cement to stir with water, and ratio of mud 0.4-1.5, by dilute retrogradation；Note
Slurry pressure 1 4MP, changes from small to big；Grouting striaght cement consumption reaches desired value, or striaght cement consumption reaches certain value and pressure
Lasting 4MP reaches more than 5 minutes and can terminate slip casting.
Compared with prior art, the present invention has techniques below effect：Present invention process is simple, easy construction, and cost is low,
Effectively increase the bearing capacity of pile for prestressed pipe.
Brief description
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of cylindrical slip casting cylinder in the present invention.
Fig. 3 is the structural representation of taper slip casting cylinder in the present invention.
Fig. 4 is the structural representation that in the present invention, guard aperture plate is L-type.
Fig. 5 is the structural representation that in the present invention, guard aperture plate is yi word pattern.
Detailed description of the invention
In order to make the technical problem to be solved, technical scheme and beneficial effect clearer, below tie
Close drawings and Examples, the present invention is further elaborated.Only it should be appreciated that specific embodiment described herein
It in order to explain the present invention, is not intended to limit the present invention.
As shown in Figures 1 to 5, the PHC pile tube for grouting behind shaft or drift lining, including pile for prestressed pipe 1, the bottom of pile for prestressed pipe 1
Being provided with slip casting cylinder 2, the barrel of slip casting cylinder 2 being provided with multiple injected hole 3, the bottom of slip casting cylinder 2 is provided with base plate 4, slip casting
The top of cylinder 2 is provided with sealing plate 5, is provided with the Grouting Pipe 6 connecting with slip casting cylinder in pile for prestressed pipe 1.
Wherein, slip casting cylinder 2 uses the pyramidal structure that steel pipe makes or cylindrical structural, and the barrel of slip casting cylinder offers slip casting
Hole, injected hole aperture is 7-8cm, the guard aperture plate of injected hole bottom welding, and guard aperture plate uses a word structure and L-type structure, guard aperture
Soil around injected hole can be cleaved and separate by plate, prevents soil clogging injected hole；Bottom slip casting cylinder bottom welding, base plate
Diameter more than the diameter of slip casting cylinder, so static pressure machine by pile for prestressed pipe press-in foundation soil supporting course when, base plate can make
Soil layer around slip casting cylinder forms loose condition (of surface), it is simple to slip casting；Filling rubble in slip casting cylinder, ballast grain sizes is more than or equal to 40mm,
Slip casting cylinder welded top sealing plate, welding reinforcement gusset on barrel, sealing plate, base plate, reinforcement gusset and cylinder are integrally molded.This
When sample is welded on slip casting cylinder bottom pile for prestressed pipe, strengthens gusset and can strengthen the strength and stability of cylinder；Rubble, cement
Slurry, cylinder can form a closely knit entirety, can preferably transmit the load of pile for prestressed pipe, thus improve prestressed pipe
The bearing capacity of stake.
Additionally, be provided with slip casting connecting tube 10 on sealing plate 5, slip casting connecting tube 10 is provided with pipe joint 11.Use note
Slurry connecting tube can be easy to the transport of slip casting cylinder and scene quickly assembles, and improves operating efficiency.
When constructing, follow the steps below operation,
A, making slip casting cylinder, offer injected hole on the barrel of steel cylinder, at steel cylinder bottom welding base plate, welds on steel cylinder outer wall
Strengthening gusset and guard aperture plate, perforate on sealing plate, welding slip casting connects tube head, is then filled in rubble in steel cylinder, then will
Sealing plate is welded on steel cylinder, and slip casting cylinder completes；
B, connection slip casting tube head on slip casting cylinder for the Grouting Pipe, then by flange at the bottom of the stake of slip casting cylinder welding pile for prestressed pipe；
C, then by step b can grouting behind shaft or drift lining pile for prestressed pipe by static pressure machine be pressed into foundation soil supporting course；
D, then carrying out high-pressure slip-casting by Grouting Pipe again, cement mortar uses 52.5R ordinary portland cement to stir with water, ratio of mud 0.4-
1.5, by dilute retrogradation；Grouting pressure 1 4MP, changes from small to big；Grouting striaght cement consumption reaches desired value, or striaght cement consumption
Reach certain value and the lasting 4MP of pressure reaches more than 5 minutes and can terminate slip casting.
Maintenance after d, slip casting complete can carry out static test after 28 days and checks its bearing capacity.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Any modification, equivalent and the improvement etc. made within god and principle, all should wrap within the scope of the present invention.
Claims (8)
1. the PHC pile tube for grouting behind shaft or drift lining, including pile for prestressed pipe, it is characterised in that：The bottom of described pile for prestressed pipe is arranged
Having slip casting cylinder, the barrel of described slip casting cylinder being provided with multiple injected hole, the bottom of described slip casting cylinder is provided with base plate, slip casting cylinder
Top be provided with sealing plate, be provided with the Grouting Pipe connecting with slip casting cylinder in described pile for prestressed pipe.
2. the PHC pile tube for grouting behind shaft or drift lining according to claim 1, it is characterised in that：Described slip casting cylinder is tapered steel knot
Structure, or be cylindrical steel structure.
3. slip casting cylinder according to claim 1, it is characterised in that：The diameter of described base plate is more than cylinder cylindrical portion
Diameter.
4. slip casting cylinder according to claim 1, it is characterised in that：It is provided with many reinforcements on the barrel of described slip casting cylinder
Plate and guard aperture plate, described guard aperture plate is positioned at the lower section of injected hole.
5. slip casting cylinder according to claim 1, it is characterised in that：Described slip casting cylinder top is provided with sealing plate, described close
It is provided with slip casting on shrouding and connect tube head.
6. slip casting cylinder according to claim 1, it is characterised in that：It is filled with rubble in described slip casting cylinder, described rubble
Particle diameter is more than or equal to 40mm.
7. a PHC pile tube grouting behind shaft or drift lining construction technology, it is characterised in that：Follow the steps below operation,
A, making slip casting cylinder, offer injected hole on the barrel of steel cylinder, at steel cylinder bottom welding base plate, welds on steel cylinder outer wall
Strengthening gusset and reaming plate, perforate on sealing plate, welding slip casting connects tube head, is then filled in rubble in steel cylinder, then will
Sealing plate is welded on steel cylinder, and slip casting cylinder completes；
B, the slip casting tube head in Grouting Pipe and slip casting cylinder is connected, then by flange welding jail at the bottom of the stake of slip casting cylinder and pile for prestressed pipe
Gu, the PHC pile tube for grouting behind shaft or drift lining completes；
C, then by step b can grouting behind shaft or drift lining pile for prestressed pipe by piling machine be pressed into foundation soil supporting course；
D, then carrying out high-pressure slip-casting by Grouting Pipe again, maintenance after slip casting completes can carry out static test inspection after 28 days
Its bearing capacity.
8. a kind of PHC pile tube grouting behind shaft or drift lining construction technology according to claim 7, it is characterised in that：Described cement mortar uses
52.5R ordinary portland cement stirs with water, and ratio of mud 0.4-1.5, by dilute retrogradation；Grouting pressure 1 4MP, changes from small to big；Grouting is pure
Cement consumption reaches desired value, or striaght cement consumption reaches certain value and the lasting 4MP of pressure reaches more than 5 minutes and can terminate note
Slurry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610862932.6A CN106436703B (en) | 2016-09-29 | 2016-09-29 | PHC tubular pole and its grouting behind shaft or drift lining construction technology for grouting behind shaft or drift lining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610862932.6A CN106436703B (en) | 2016-09-29 | 2016-09-29 | PHC tubular pole and its grouting behind shaft or drift lining construction technology for grouting behind shaft or drift lining |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106436703A true CN106436703A (en) | 2017-02-22 |
| CN106436703B CN106436703B (en) | 2018-11-23 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610862932.6A Active CN106436703B (en) | 2016-09-29 | 2016-09-29 | PHC tubular pole and its grouting behind shaft or drift lining construction technology for grouting behind shaft or drift lining |
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| CN (1) | CN106436703B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114134896A (en) * | 2021-10-13 | 2022-03-04 | 王伟泽 | Grouting device and post-grouting process for post-grouting of PHC (prestressed high-strength concrete) tubular pile |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1458345A (en) * | 2003-04-29 | 2003-11-26 | 立基工程有限公司 | Combined pile section with reinfored horizontal bending strength and rigidity and its construction method |
| CN1896383A (en) * | 2005-07-14 | 2007-01-17 | 胡柏英 | Steel-pipe concrete assembled pile of predrilled hole rock-embedded and its construction |
| CN2858774Y (en) * | 2005-12-29 | 2007-01-17 | 王永强 | Gunite type pile tip for prestressed pipe pile |
| US7909541B1 (en) * | 2008-10-24 | 2011-03-22 | Synchro Patents, Inc. | Apparatus and method for improved grout containment in post-grouting applications |
| CN205604251U (en) * | 2016-04-22 | 2016-09-28 | 江苏巨鑫石油钢管有限公司 | A slip casting system that is used for pier, bridge pile steel pipe |
| CN206591513U (en) * | 2016-09-29 | 2017-10-27 | 李昊洋 | Slip casting cylinder for PHC pile tubes |
-
2016
- 2016-09-29 CN CN201610862932.6A patent/CN106436703B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1458345A (en) * | 2003-04-29 | 2003-11-26 | 立基工程有限公司 | Combined pile section with reinfored horizontal bending strength and rigidity and its construction method |
| CN1896383A (en) * | 2005-07-14 | 2007-01-17 | 胡柏英 | Steel-pipe concrete assembled pile of predrilled hole rock-embedded and its construction |
| CN2858774Y (en) * | 2005-12-29 | 2007-01-17 | 王永强 | Gunite type pile tip for prestressed pipe pile |
| US7909541B1 (en) * | 2008-10-24 | 2011-03-22 | Synchro Patents, Inc. | Apparatus and method for improved grout containment in post-grouting applications |
| CN205604251U (en) * | 2016-04-22 | 2016-09-28 | 江苏巨鑫石油钢管有限公司 | A slip casting system that is used for pier, bridge pile steel pipe |
| CN206591513U (en) * | 2016-09-29 | 2017-10-27 | 李昊洋 | Slip casting cylinder for PHC pile tubes |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114134896A (en) * | 2021-10-13 | 2022-03-04 | 王伟泽 | Grouting device and post-grouting process for post-grouting of PHC (prestressed high-strength concrete) tubular pile |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106436703B (en) | 2018-11-23 |
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