CN102660946B - Grouting pile head of tubular pile and application method thereof - Google Patents
Grouting pile head of tubular pile and application method thereof Download PDFInfo
- Publication number
- CN102660946B CN102660946B CN201210174577.5A CN201210174577A CN102660946B CN 102660946 B CN102660946 B CN 102660946B CN 201210174577 A CN201210174577 A CN 201210174577A CN 102660946 B CN102660946 B CN 102660946B
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- pile
- pile tube
- slip casting
- standpipe
- inlet pipe
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Abstract
The invention relates to a grouting pile head of a tubular pile and an application method of the grouting pile head. The grouting pile head of tubular pile comprises an inverted cone with an upper opening, wherein an upper plate welded with the lower end part of the tubular pile is arranged on the upper opening of the inverted cone, a longitudinal slurry inlet pipe vertically passes through the middle part of the upper plate, the lower end part of the longitudinal slurry inlet pipe is communicated with a plurality of slurry spray pipes, the slurry spray pipes are radially arranged in the inner cavity of the inverted cone, and slurry spray openings are located on the conical surface of the inverted cone, cover plates are arranged on the slurry spray openings to prevent soil from being extruded into the slurry spray pipes when the pile is pressed, and the upper end part of the longitudinal slurry inlet pipe is connected with a vertical grouting pipe inserted in the tubular pile. The grouting pile head of tubular pile has simple structure and relatively low cost, and high pressure cement slurry can be grouted in the end part of the tubular pile pegged in the soil through the vertical grouting pipe to reinforce the soil property of the end part of the tubular pile and expand the supporting area of the end part of the tubular pile, thereby improving the bearing capacity of the tubular pile.
Description
Technical field
The present invention relates to a kind of pile tube slip casting pile crown and using method thereof.
Background technology
Pile for prestressed pipe has many advantages, has been widely used in engineering construction.But the supporting capacity of current piling machinery ability and surface soil layer is limited.For hard decomposed rock, piling difficulty; And in soft soil, the bearing capacity of stake end is little.Therefore, the bearing capacity of pile for prestressed pipe can't well be played.
Summary of the invention
The object of the present invention is to provide a kind of pile tube slip casting pile crown and using method thereof, this pile tube grouting pile header structure is simple, cost relative moderate, coordinate slip casting standpipe can carry out perfusion water under high pressure mud to the pipe pile end portion squeezed in figure, to strengthen the soil property of pipe pile end portion and to expand the Area of bearing of pipe pile end portion, improve the bearing capacity of pile tube.
Technical program of the present invention lies in: a kind of pile tube slip casting pile crown, comprise the reverse taper that has upper shed, the upper shed of described reverse taper is provided with the upper plate for welding with pile tube bottom, longitudinal inlet pipe is vertically equipped with in the middle part of described upper plate, the bottom of described longitudinal inlet pipe is connected with some shotcrete pipes, those shotcrete pipes radial direction is arranged in reverse taper inner chamber and mouth spray is positioned on the conical surface of reverse taper, described mouth spray is provided with cover plate, during to prevent piling, earth is clamp-oned in shotcrete pipe, described cover plate is wooden cover plate, metal cover board, plastic cover plate or rubber cover plate, the upper end of described longitudinal inlet pipe is connected with the slip casting standpipe be located in pile tube.
In one embodiment, the upper end outer peripheral face of described longitudinal inlet pipe is the conical surface, and is provided with rubber gasket.
In one embodiment, described reverse taper inner chamber is also provided with deep floor, for strengthening the structural rigidity of reverse taper.
In one embodiment, described reverse taper inner chamber is cast with concrete, to strengthen the structural rigidity of reverse taper.
In one embodiment, the perimembranous of described upper plate is connected with wing plate.
Another technical scheme of the present invention is the using method providing a kind of pile tube slip casting pile crown, carries out according to the following steps:
(1) penetrate the slip casting standpipe isometric with pile tube when pile tube crouches and puts state, and interim locating pad is set at the two ends of pile tube, make slip casting standpipe be positioned at the central axis place of pile tube;
(2) at an end welded pipe stake slip casting pile crown of pile tube: first make the inlet pipe of pile tube slip casting pile crown dock with slip casting standpipe before welding, and take off the locating pad on this end;
(3) pile tube is erected, and carry out piling work;
(4) pile extension welding: first make the slip casting standpipe in the preceding paragraph pile tube dock with the slip casting standpipe in next section of pile tube be pressed in soil before welding pile tube, and take off the locating pad be arranged on pile tube;
(5) slip casting operation: slip casting standpipe is docked with grouting equipment, and inject water under high pressure mud or concrete;
(6) make slip casting standpipe be separated with inlet pipe, hoisting grouting standpipe and segmentation dismounting, end-of-job.
In above-mentioned steps (4), between the preceding paragraph pile tube and next section of pile tube, instrument pad should be provided with, to make the preceding paragraph pile tube and next section of pile tube keep geo-stationary, and provide the connection space of slip casting standpipe.
The invention has the advantages that: pile tube slip casting pile crown of the present invention can be used on to be needed to strengthen the pile for prestressed pipe engineering of bearing capacity from stake end, it does not change original pile pressing technology, only increase the bearing capacity that a small amount of cost just can improve pile for prestressed pipe greatly, original inapplicable soil property can be made, strengthen after construction can be used as bearing stratum through said method; Three is be conducive to shortening the length squeezing into pile tube in soil, and greatly can improve the breakout capacity of pile for prestressed pipe, makes pile for prestressed pipe obtain the scope of application wider.
Accompanying drawing explanation
Fig. 1 is pile tube slip casting pile crown in embodiment and pile tube mounting structure schematic diagram.
Fig. 2 is the schematic top plan view of the pile tube slip casting pile crown in embodiment.
In figure: 1-reverse taper, 2-pile tube, 3-upper plate, 4-longitudinal inlet pipe, 5-shotcrete pipe, 6-cover plate, 7-slip casting standpipe, 8-deep floor, 9-wing plate, 10-rubber gasket.
Detailed description of the invention
For above-mentioned feature and advantage of the present invention can be become apparent, special embodiment below, and coordinate accompanying drawing, be described in detail below.
Pile tube slip casting pile crown of the present invention comprises the reverse taper 1 that has upper shed, the upper shed of described reverse taper 1 is provided with the upper plate 3 for welding with pile tube 2 bottom, longitudinal inlet pipe 4 is vertically equipped with in the middle part of described upper plate 3, the bottom of described longitudinal inlet pipe 4 is connected with some shotcrete pipes 5, those shotcrete pipe 5 radial directions are arranged in reverse taper 1 inner chamber and mouth spray is positioned on the conical surface of reverse taper, described mouth spray is provided with cover plate 6, during to prevent piling, earth is clamp-oned in shotcrete pipe, described cover plate is wooden cover plate, metal cover board, plastic cover plate or rubber cover plate, the upper end of described longitudinal inlet pipe 4 is connected with the slip casting standpipe 7 be located in pile tube 2.
In the present embodiment, the upper end outer peripheral face of described longitudinal inlet pipe is the conical surface, namely up-small and down-big form, and is provided with rubber gasket 10.
In the present embodiment, described reverse taper 1 inner chamber is also provided with deep floor 8, for strengthening the structural rigidity of reverse taper.
In other embodiments, described reverse taper 1 inner chamber is cast with concrete, to strengthen the structural rigidity of reverse taper.
In the present embodiment, the perimembranous of described upper plate is connected with wing plate 9.
The using method of above-mentioned pile tube slip casting pile crown, carry out according to the following steps:
(1) penetrate the slip casting standpipe 7 isometric with pile tube 2 when pile tube 2 crouches and puts state, and interim locating pad is set at the two ends of pile tube 2, make slip casting standpipe 7 be positioned at the central axis place of pile tube;
(2) at an end welded pipe stake slip casting pile crown of pile tube 2: first make the inlet pipe of pile tube slip casting pile crown dock with slip casting standpipe before welding, and take off the locating pad on this end;
(3) pile tube is erected, and carry out piling work;
(4) pile extension welding: first make the slip casting standpipe in the preceding paragraph pile tube dock with the slip casting standpipe in next section of pile tube be pressed in soil before welding pile tube, and take off the locating pad be arranged on pile tube;
(5) slip casting operation: slip casting standpipe is docked with grouting equipment, and inject water under high pressure mud or concrete;
(6) make slip casting standpipe be separated with inlet pipe, hoisting grouting standpipe and segmentation dismounting, end-of-job.
In above-mentioned steps (4), between the preceding paragraph pile tube and next section of pile tube, instrument pad should be provided with, to make the preceding paragraph pile tube and next section of pile tube keep geo-stationary, and provide the connection space of slip casting standpipe.
The foregoing is only preferred embodiment of the present invention, all equalizations done according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (5)
1. a pile tube slip casting pile crown, it is characterized in that: comprise the reverse taper that has upper shed, the upper shed of described reverse taper is provided with the upper plate for welding with pile tube bottom, longitudinal inlet pipe is vertically equipped with in the middle part of described upper plate, the bottom of described longitudinal inlet pipe is connected with some shotcrete pipes, described shotcrete pipe radial direction is arranged in reverse taper inner chamber and mouth spray is positioned on the conical surface of reverse taper, described mouth spray is provided with cover plate, during to prevent piling, earth is clamp-oned in shotcrete pipe, the upper end of described longitudinal inlet pipe is connected with the slip casting standpipe be located in pile tube, the upper end outer peripheral face of described longitudinal inlet pipe is the conical surface, and be provided with rubber gasket, the perimembranous of described upper plate is connected with wing plate.
2. pile tube slip casting pile crown according to claim 1, is characterized in that: described reverse taper inner chamber is also provided with deep floor, for strengthening the structural rigidity of reverse taper.
3. pile tube slip casting pile crown according to claim 1, is characterized in that: described reverse taper inner chamber is cast with concrete, to strengthen the structural rigidity of reverse taper.
4. a using method for pile tube slip casting pile crown as claimed in claim 1, is characterized in that, carry out according to the following steps:
(1) penetrate the slip casting standpipe isometric with pile tube when pile tube crouches and puts state, and interim locating pad is set at the two ends of pile tube, make slip casting standpipe be positioned at the central axis place of pile tube;
(2) at an end welded pipe stake slip casting pile crown of pile tube: first make longitudinal inlet pipe of pile tube slip casting pile crown dock with slip casting standpipe before welding, and take off the locating pad on this end;
(3) pile tube is erected, and carry out piling work;
(4) pile extension welding: first make the slip casting standpipe in the preceding paragraph pile tube dock with the slip casting standpipe in next section of pile tube be pressed in soil before welding pile tube, and take off the locating pad be arranged on pile tube;
(5) slip casting operation: slip casting standpipe is docked with grouting equipment, and inject water under high pressure mud or concrete;
(6) make slip casting standpipe be separated with inlet pipe, hoisting grouting standpipe and segmentation dismounting, end-of-job.
5. the using method of pile tube slip casting pile crown according to claim 4, it is characterized in that: in above-mentioned steps (4), instrument pad should be provided with between the preceding paragraph pile tube and next section of pile tube, to make the preceding paragraph pile tube and next section of pile tube keep geo-stationary, and provide the connection space of slip casting standpipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210174577.5A CN102660946B (en) | 2012-05-31 | 2012-05-31 | Grouting pile head of tubular pile and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210174577.5A CN102660946B (en) | 2012-05-31 | 2012-05-31 | Grouting pile head of tubular pile and application method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102660946A CN102660946A (en) | 2012-09-12 |
| CN102660946B true CN102660946B (en) | 2015-02-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210174577.5A Expired - Fee Related CN102660946B (en) | 2012-05-31 | 2012-05-31 | Grouting pile head of tubular pile and application method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102660946B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603336B (en) * | 2013-10-31 | 2017-01-11 | 周兆弟 | Grouting precast pile and grouting method |
| CN103603345B (en) * | 2013-10-31 | 2017-01-11 | 周兆弟 | Cement mixing grouting pile foundations and forming method |
| CN104514221B (en) * | 2014-12-04 | 2016-06-01 | 中科院广州化灌工程有限公司 | A kind of stake rear flank grouting device |
| CN104594357A (en) * | 2015-01-19 | 2015-05-06 | 赵连平 | Grouting device after statically pressing or hammering concrete precast tubular pile base and grouting method |
| CN110805037B (en) * | 2019-11-11 | 2021-06-01 | 宝山钢铁股份有限公司 | One-time pile sinking construction method for precast tubular pile |
| CN111455973A (en) * | 2020-05-26 | 2020-07-28 | 刘家赫 | Composite foundation structure of prefabricated solid CFG pile and construction method thereof |
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| GB191407085A (en) * | 1914-03-20 | 1914-12-31 | Charles Ferrar | Improvements in or relating to the Strengthening of Substrata and Apparatus therefor. |
| GB552928A (en) * | 1941-10-28 | 1943-04-30 | Braithwaite And Company Engine | Improvements in and relating to screw piles and cylinders |
| CN1078760A (en) * | 1993-02-22 | 1993-11-24 | 陶义 | Driving pre-fabricated pile is gone into job practices in the stratum |
| CN2501914Y (en) * | 2001-10-26 | 2002-07-24 | 肇庆市宏基基础工程有限公司 | Square cone shape pile pin for building tubular pile foundation |
| CN2858774Y (en) * | 2005-12-29 | 2007-01-17 | 王永强 | Gunite type pile tip for prestressed pipe pile |
| CN201132955Y (en) * | 2007-12-05 | 2008-10-15 | 中北大学 | Synchronized static pressure grouting precast pile device |
| CN202577290U (en) * | 2012-05-31 | 2012-12-05 | 福州市第三建筑工程公司 | Pipe pile grouting pile head |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1146257A (en) * | 1967-07-18 | 1969-03-26 | John Joseph Dougherty | A pile driving shoe |
| CN2148095Y (en) * | 1992-12-28 | 1993-12-01 | 连云港市机械化施工公司 | Large penetration force pile shoe |
| CN1102981C (en) * | 1997-05-15 | 2003-03-12 | 杨远辉 | Special drilling tool to bore hole in gravel layer |
| CN1202318C (en) * | 2003-01-15 | 2005-05-18 | 刘润郊 | Method and apparatus for pile making by boring and pumping mass concrete and rotation jetting slurry |
| CN2756706Y (en) * | 2004-11-05 | 2006-02-08 | 宁波市机电工业研究设计院 | Pile bottom pust filling prestress pipe pile |
| CN201526045U (en) * | 2009-11-06 | 2010-07-14 | 唐良华 | Composite pipe pile |
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2012
- 2012-05-31 CN CN201210174577.5A patent/CN102660946B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191407085A (en) * | 1914-03-20 | 1914-12-31 | Charles Ferrar | Improvements in or relating to the Strengthening of Substrata and Apparatus therefor. |
| GB552928A (en) * | 1941-10-28 | 1943-04-30 | Braithwaite And Company Engine | Improvements in and relating to screw piles and cylinders |
| CN1078760A (en) * | 1993-02-22 | 1993-11-24 | 陶义 | Driving pre-fabricated pile is gone into job practices in the stratum |
| CN2501914Y (en) * | 2001-10-26 | 2002-07-24 | 肇庆市宏基基础工程有限公司 | Square cone shape pile pin for building tubular pile foundation |
| CN2858774Y (en) * | 2005-12-29 | 2007-01-17 | 王永强 | Gunite type pile tip for prestressed pipe pile |
| CN201132955Y (en) * | 2007-12-05 | 2008-10-15 | 中北大学 | Synchronized static pressure grouting precast pile device |
| CN202577290U (en) * | 2012-05-31 | 2012-12-05 | 福州市第三建筑工程公司 | Pipe pile grouting pile head |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102660946A (en) | 2012-09-12 |
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Granted publication date: 20150211 Termination date: 20210531 |