CN102953372A - Steel pipe pile and construction method thereof - Google Patents

Steel pipe pile and construction method thereof Download PDF

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Publication number
CN102953372A
CN102953372A CN2012104586041A CN201210458604A CN102953372A CN 102953372 A CN102953372 A CN 102953372A CN 2012104586041 A CN2012104586041 A CN 2012104586041A CN 201210458604 A CN201210458604 A CN 201210458604A CN 102953372 A CN102953372 A CN 102953372A
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CN
China
Prior art keywords
pile
steel pipe
steel
pipe
rubble
Prior art date
Application number
CN2012104586041A
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Chinese (zh)
Inventor
周继忠
罗才松
蔡雪峰
蔡建平
陈小成
陈平辉
Original Assignee
福建工程学院
福建省南安市第一建设有限公司
Priority date (The priority date 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 date listed.)
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Application filed by 福建工程学院, 福建省南安市第一建设有限公司 filed Critical 福建工程学院
Priority to CN2012104586041A priority Critical patent/CN102953372A/en
Publication of CN102953372A publication Critical patent/CN102953372A/en

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Abstract

The invention provides a steel pipe pile, which comprises a steel pipe, a pile tip and a pressure grouting tube. The pile tip is vertically arranged at the end of the steel pipe; the pressure grouting tube is arranged in the steel pipe; a plurality of holes are formed on a peripheral side of a pipe wall at 50cm-100cm range of the lower end of the pressure grouting tube; the diameter of the each hole is 0.3-0.6cm and the hole is used for cement paste to flow from the hole to the grouting tubean injection pipe when grouting is carried out; a filler is filled between the external wall of the pressure grouting tube and the inner wall of the steel pipe; the filler is the mixture of the cement paste and macadam; and the cement paste is injected to the bottom of the steel pipe through the pressure grouting tube and densely fills the macadam gaps in the steel pipe along the gaps of the macadam. The invention further provides a construction method of the steel pipe pile; the vertical bearing capacity of the steel pipe pile in construction engineering is improved; the construction is convenient; the rigidity is large, and the bearing capacity is high; and the bearing capacity is improved by 10%-20% than compared with the common steel pipe pile.

Description

A kind of steel pipe pile and job practices thereof
[technical field]
The present invention relates to the building pile foundation technical field, relate in particular to a kind of steel pipe pile and job practices thereof.
[background technology]
A kind of deep foundation that pile foundation is comprised of stake and the pile cap (abbreviation cushion cap) that is connected the stake top, have that bearing capacity is high, settling amount is little and more uniform characteristics, almost can be applied to various engineering geological conditionss and various types of engineering, especially be applicable to build the heavy building on soft foundation.Therefore, in coastal and soft clay area, pile foundation is more extensive.The pile foundation type is more, such as precast reinforced concrete piles, pile tube, various castinplace piles etc., the reason extensive uses such as pile tube is high because of its intensity, easy construction, but pile tube mostly diameter is less, bearing capacity is relatively low, in view of this, the present invention develops a kind of new steel pipe pile, has higher stiffness and bearing capacity.
[summary of the invention]
One of the technical problem to be solved in the present invention provides a kind of steel pipe pile, and it has larger high rigidity and than high-bearing capacity, avoids present pile tube rigidity and the relatively low problem of bearing capacity.
One of above-mentioned technical problem of the present invention is achieved in that a kind of steel pipe pile, comprises steel pipe, pile top and slip casing by pressure pipe; Described pile top is vertically installed in described steel tube end part, described slip casing by pressure pipe is located in the steel pipe, offer a plurality of holes on all sides of the tube wall of described slip casing by pressure pipe lower end, cement paste flowed out Grouting Pipe from described hole when this hole was used for slip casting, was filled with filler between the outer wall of described slip casing by pressure pipe and the inwall of steel pipe; Described filler is the mixture of cement paste and rubble; Described cement paste is to inject the end in the described steel pipe by the slip casing by pressure pipe, and fills up the rubble gap in the steel pipe closely knit along the interstitial flow of rubble.
Further, described rubble diameter is 1 ~ 4cm; Described diameter of steel tube is 300 ~ 600mm, and steel pipe length is 10 ~ 30m; The tube wall week side of the long scope of the 50cm of described slip casing by pressure pipe lower end ~ 100cm is opened described hole, and the diameter of this hole is at 0.3 ~ 0.6cm.
Further, described outer wall of steel pipe is coated with rust protection agent.
Further, described pile top is steel pile tip, and this steel pile tip and described steel-pipe welding are fixed together.
Further, described pile top is the steel concrete pile top.
Two of the technical problem to be solved in the present invention has been to provide a kind of job practices of pile tube, improves the vertical bearing capacity of steel pipe pile in the construction work, has easy construction, rigidity is large, bearing capacity is high characteristic.
Two of the above-mentioned technical problem of the present invention is achieved in that
Scheme one:
A kind of job practices of steel pipe pile, the steel pipe pile of the method is comprised of steel pipe, pile top and slip casing by pressure pipe; When described pile top was the steel concrete pile top, this job practices specifically comprised the steps:
Step 11: the stake position place at building buries the steel concrete pile top underground, utilize pipeline sinking pile machinery with described steel pipe socket on the steel concrete pile top, and described steel pipe sunk to underground bearing stratum;
Step 12: pipeline sinking pile machinery is removed;
Step 13: the slip casing by pressure pipe is put into described steel pipe inner bottom part;
Step 14: in described steel pipe, insert rubble;
Step 15: to the slip casting of described steel pipe inner bottom part, cement paste flows out from the hole of slip casing by pressure pipe lower end by the slip casing by pressure pipe, makes cement paste interstitial flow of rubble in the steel pipe fill the gap of rubble, until cement paste is filled with steel pipe.
Further, described rubble diameter is 1 ~ 4cm; Described diameter of steel tube is 300 ~ 600mm, and steel pipe length is 10 ~ 30m.
Further, in steel pipe, fill out first rubble, and then with the space between slip casing by pressure pipe injected water mud filling rubble, make the filler in the described steel pipe reach dense state.
Further, described outer wall of steel pipe is coated with rust protection agent.
Scheme two:
A kind of job practices of steel pipe pile, the steel pipe pile of the method is comprised of steel pipe, pile top and slip casing by pressure pipe; When described pile top is steel pile tip, when this steel pile tip and described steel-pipe welding were fixed together, this job practices specifically comprised the steps:
Step 21: utilize pipeline sinking pile machinery to sink to underground bearing stratum at the place, stake position of building with the steel pipe of described steel pile tip;
Step 22: the pipeline sinking pile machine is removed;
Step 23: the slip casing by pressure pipe is put into described steel pipe inner bottom part;
Step 24: in described steel pipe, insert rubble;
Step 25: to the slip casting of described steel pipe inner bottom part, cement paste flows out from the hole of slip casing by pressure pipe lower end by the slip casing by pressure pipe, makes cement paste interstitial flow of rubble in the steel pipe fill the gap of rubble, until cement paste is filled with steel pipe.
The present invention has following advantage: the present invention takes full advantage of the slip casing by pressure pipe and slurry filling machine is injected into cement paste in the steel pipe, the gap of the described rubble of steel duct is filled up closely knit, and the Rigidity and strength of steel pipe pile is improved.Therefore, this pile tube has easy construction, rigidity is large and bearing capacity is high characteristic, can improve bearing capacity 10%-20% than ordinary steel pile tube.
[description of drawings]
Fig. 1 is the structural representation that the present invention adopts the steel pipe pile after the steel concrete pile top is implemented.
Fig. 2 is the structural representation that the present invention adopts the steel pipe pile after steel pile tip is implemented.
[specific embodiment]
See also shown in Figure 1ly, a kind of steel pipe pile of first embodiment of the invention comprises steel pipe 1, pile top 2 and slip casing by pressure pipe 3; Described pile top 2 is vertically installed in described steel pipe 1 end, described slip casing by pressure pipe 3 is located in the steel pipe 1, offer a plurality of holes (not shown) on all sides of the tube wall of the long scope of described slip casing by pressure pipe 3 lower ends 50cm ~ 100cm, cement paste can flow out Grouting Pipe from described hole when being used for slip casting, is filled with filler 4 between the inwall of the outer wall of described slip casing by pressure pipe 3 and steel pipe 1; Described filler 4 is the mixture of cement paste 41 and rubble 42; Described rubble 42 diameters are 1 ~ 4cm; Described cement paste 41 is to inject the 1 interior end of described steel pipe by slip casing by pressure pipe 3, and fills up rubble 42 gaps in the steel pipe 1 closely knit along the interstitial flow of rubble 42.
Wherein, described steel pipe 1 diameter is 300 ~ 600mm, and steel pipe 1 length is 10 ~ 30m.In order to prevent that steel pipe 1 from getting rusty, described steel pipe 1 outer wall is coated with rust protection agent.
In the present embodiment, described pile top 2 is the steel concrete pile top.
Seeing also shown in Figure 2ly, is the structural representation of the steel pipe pile after the present invention adopts steel pile tip to implement.The steel pipe pile of this second embodiment and the first embodiment difference are: described pile top 2 is steel pile tip, and this steel pile tip 2 is welded and fixed together with described steel pipe 1.
The job practices of a kind of steel pipe pile of the present invention includes two schemes.
Scheme one:
A kind of job practices of steel pipe pile, the steel pipe pile of the method is comprised of steel pipe, pile top and slip casing by pressure pipe; When described pile top was the steel concrete pile top, this job practices specifically comprised the steps:
Step 11: the stake position place at building buries steel concrete pile top (this steel concrete pile top sets in advance) underground, utilize pipeline sinking pile machinery with described steel pipe socket on the steel concrete pile top, and described steel pipe sunk to underground bearing stratum; This steel concrete pile top is a kind of conical concrete prefabricated element, is used for being contained in when the pile tube sinking construction steel pipe head, plays guiding and plugging action;
Step 12: pipeline sinking pile machinery is removed;
Step 13: the slip casing by pressure pipe is put into described steel pipe inner bottom part;
Step 14: in described steel pipe, insert rubble;
Step 15: to the slip casting of described steel pipe inner bottom part, cement paste flows out from the hole of slip casing by pressure pipe lower end by the slip casing by pressure pipe, makes cement paste interstitial flow of rubble in the steel pipe fill the gap of rubble, until cement paste is filled with steel pipe.
Wherein, described rubble diameter is 1 ~ 4cm; Described diameter of steel tube is 300 ~ 600mm, and steel pipe length is 10 ~ 30m.In steel pipe, fill out first rubble, and then with the space between slip casing by pressure pipe injected water mud filling rubble, make the filler in the described steel pipe reach dense state.
In order to prevent that steel pipe from getting rusty, described outer wall of steel pipe is coated with rust protection agent.
Scheme two:
A kind of job practices of steel pipe pile, the steel pipe pile of the method is comprised of steel pipe, pile top and slip casing by pressure pipe; When described pile top is steel pile tip, when this steel pile tip and described steel-pipe welding were fixed together, this job practices specifically comprised the steps:
Step 21: utilize pipeline sinking pile machinery to sink to underground bearing stratum at the place, stake position of building with the steel pipe of described steel pile tip;
Step 22: the pipeline sinking pile machine is removed;
Step 23: the slip casing by pressure pipe is put into described steel pipe inner bottom part;
Step 24: in described steel pipe, insert rubble;
Step 25: to the slip casting of described steel pipe inner bottom part, cement paste flows out from the hole of slip casing by pressure pipe lower end by the slip casing by pressure pipe, makes cement paste interstitial flow of rubble in the steel pipe fill the gap of rubble, until cement paste is filled with steel pipe.
Wherein, described rubble diameter is 1 ~ 4cm; Described diameter of steel tube is 300 ~ 600mm, and steel pipe length is 10 ~ 30m.In steel pipe, fill out first rubble, and then with the space between slip casing by pressure pipe injected water mud filling rubble, make the filler in the described steel pipe reach dense state.
In order to prevent that steel pipe from getting rusty, described outer wall of steel pipe is coated with rust protection agent.
The above only is preferred embodiment of the present invention, and all equalizations of doing according to the present patent application claim change and modify, and all should belong to covering scope of the present invention.

Claims (10)

1. a steel pipe pile is characterized in that: comprise steel pipe, pile top and slip casing by pressure pipe; Described pile top is vertically installed in described steel tube end part, described slip casing by pressure pipe is located in the steel pipe, offer a plurality of holes on all sides of the tube wall of described slip casing by pressure pipe lower end, cement paste flowed out Grouting Pipe from described hole when this hole was used for slip casting, was filled with filler between the outer wall of described slip casing by pressure pipe and the inwall of steel pipe; Described filler is the mixture of cement paste and rubble; Described cement paste is to inject the end in the described steel pipe by the slip casing by pressure pipe, and fills up the rubble gap in the steel pipe closely knit along the interstitial flow of rubble.
2. a kind of steel pipe pile according to claim 1, it is characterized in that: described rubble diameter is 1 ~ 4cm; Described diameter of steel tube is 300 ~ 600mm, and steel pipe length is 10 ~ 30m; The tube wall week side of the long scope of the 50cm of described slip casing by pressure pipe lower end ~ 100cm is opened described hole, and the diameter of this hole is at 0.3 ~ 0.6cm.
3. a kind of steel pipe pile according to claim 1, it is characterized in that: described outer wall of steel pipe is coated with rust protection agent.
4. a kind of steel pipe pile according to claim 1, it is characterized in that: described pile top is steel pile tip, this steel pile tip and described steel-pipe welding are fixed together.
5. a kind of steel pipe pile according to claim 1, it is characterized in that: described pile top is the steel concrete pile top.
6. the job practices of a steel pipe pile, it is characterized in that: the steel pipe pile of the method is comprised of steel pipe, pile top and slip casing by pressure pipe; When described pile top was the steel concrete pile top, this job practices specifically comprised the steps:
Step 11: the stake position place at building buries the steel concrete pile top underground, utilize pipeline sinking pile machinery with described steel pipe socket on the steel concrete pile top, and described steel pipe sunk to underground bearing stratum;
Step 12: pipeline sinking pile machinery is removed;
Step 13: the slip casing by pressure pipe is put into described steel pipe inner bottom part;
Step 14: in described steel pipe, insert rubble;
Step 15: to the slip casting of described steel pipe inner bottom part, cement paste flows out from the hole of slip casing by pressure pipe lower end by the slip casing by pressure pipe, makes cement paste interstitial flow of rubble in the steel pipe fill the gap of rubble, until cement paste is filled with steel pipe.
7. the job practices of a kind of pile tube according to claim 6, it is characterized in that: described rubble diameter is 1 ~ 4cm; Described diameter of steel tube is 300 ~ 600mm, and steel pipe length is 10 ~ 30m.
8. the job practices of a kind of pile tube according to claim 6 is characterized in that: fill out first rubble in steel pipe, and then with the space between slip casing by pressure pipe injected water mud filling rubble, make the filler in the described steel pipe reach dense state.
9. the job practices of a kind of pile tube according to claim 6, it is characterized in that: described outer wall of steel pipe is coated with rust protection agent.
10. the job practices of a steel pipe pile, it is characterized in that: the steel pipe pile of the method is comprised of steel pipe, pile top and slip casing by pressure pipe; When described pile top is steel pile tip, when this steel pile tip and described steel-pipe welding were fixed together, this job practices specifically comprised the steps:
Step 21: utilize pipeline sinking pile machinery to sink to underground bearing stratum at the place, stake position of building with the steel pipe of described steel pile tip;
Step 22: the pipeline sinking pile machine is removed;
Step 23: the slip casing by pressure pipe is put into described steel pipe inner bottom part;
Step 24: in described steel pipe, insert rubble;
Step 25: to the slip casting of described steel pipe inner bottom part, cement paste flows out from the hole of slip casing by pressure pipe lower end by the slip casing by pressure pipe, makes cement paste interstitial flow of rubble in the steel pipe fill the gap of rubble, until cement paste is filled with steel pipe.
CN2012104586041A 2012-11-14 2012-11-14 Steel pipe pile and construction method thereof CN102953372A (en)

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Application Number Priority Date Filing Date Title
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104695417A (en) * 2015-01-19 2015-06-10 上海市政工程设计研究总院(集团)有限公司 Post-grouting gravel pile composite foundation, post-grouting gravel pile and manufacturing method of post-grouting gravel pile
CN105200983A (en) * 2015-10-19 2015-12-30 广西大学 PVC pipe and thick wall steel tube composite hollow recycled concrete pile
CN107975375A (en) * 2017-10-24 2018-05-01 济南城建集团有限公司 A kind of miniature steel pipe pile reinforced soft foundation construction method of city tunnel
CN108005078A (en) * 2017-12-05 2018-05-08 北京航天地基工程有限责任公司 Column is hammered into shape and column hammer rammed bulb pile composite foundation construction method
CN108755668A (en) * 2018-06-22 2018-11-06 沙焕焕 A kind of construction method
CN109440949A (en) * 2018-11-21 2019-03-08 三峡大学 A kind of magnetohydrodynamic plant and method for steel antirust
CN111254935A (en) * 2020-03-07 2020-06-09 安徽安舜水利建设工程有限公司 Foundation injection sleeve and construction method

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Publication number Priority date Publication date Assignee Title
JPH10252064A (en) * 1997-03-07 1998-09-22 Atsugi Technos:Kk Method for constructing cast-in-site pile
JP2000204527A (en) * 1999-01-18 2000-07-25 Kazushiro Hayashi Structure having impervious wall body
CN101886545A (en) * 2010-07-05 2010-11-17 北京科技大学 Method for treating bottom heave of soft rock roadway by using micro broken stone pipe cast pile
CN102011396A (en) * 2010-12-31 2011-04-13 中国华电集团公司宁夏分公司 Photovoltaic foundation steel pipe pile
CN102155009A (en) * 2011-05-23 2011-08-17 中铁二院工程集团有限责任公司 Crushed rock pile used for strengthening extremely soft soil foundation and construction method thereof
CN102345288A (en) * 2010-07-29 2012-02-08 律凤梅 Method for solving problem of upward floating of hollow pile

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10252064A (en) * 1997-03-07 1998-09-22 Atsugi Technos:Kk Method for constructing cast-in-site pile
JP2000204527A (en) * 1999-01-18 2000-07-25 Kazushiro Hayashi Structure having impervious wall body
CN101886545A (en) * 2010-07-05 2010-11-17 北京科技大学 Method for treating bottom heave of soft rock roadway by using micro broken stone pipe cast pile
CN102345288A (en) * 2010-07-29 2012-02-08 律凤梅 Method for solving problem of upward floating of hollow pile
CN102011396A (en) * 2010-12-31 2011-04-13 中国华电集团公司宁夏分公司 Photovoltaic foundation steel pipe pile
CN102155009A (en) * 2011-05-23 2011-08-17 中铁二院工程集团有限责任公司 Crushed rock pile used for strengthening extremely soft soil foundation and construction method thereof

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104695417A (en) * 2015-01-19 2015-06-10 上海市政工程设计研究总院(集团)有限公司 Post-grouting gravel pile composite foundation, post-grouting gravel pile and manufacturing method of post-grouting gravel pile
CN104695417B (en) * 2015-01-19 2017-03-01 上海市政工程设计研究总院(集团)有限公司 A kind of manufacture method of grouting behind shaft or drift lining broken stone pile
CN105200983A (en) * 2015-10-19 2015-12-30 广西大学 PVC pipe and thick wall steel tube composite hollow recycled concrete pile
CN107975375A (en) * 2017-10-24 2018-05-01 济南城建集团有限公司 A kind of miniature steel pipe pile reinforced soft foundation construction method of city tunnel
CN107975375B (en) * 2017-10-24 2019-01-11 济南城建集团有限公司 A kind of miniature steel pipe pile reinforced soft foundation construction method of city tunnel
CN108005078A (en) * 2017-12-05 2018-05-08 北京航天地基工程有限责任公司 Column is hammered into shape and column hammer rammed bulb pile composite foundation construction method
CN108005078B (en) * 2017-12-05 2021-01-15 北京航天地基工程有限责任公司 Column hammer and column hammer rammed pile-expanding composite foundation construction method
CN108755668A (en) * 2018-06-22 2018-11-06 沙焕焕 A kind of construction method
CN109440949A (en) * 2018-11-21 2019-03-08 三峡大学 A kind of magnetohydrodynamic plant and method for steel antirust
CN111254935A (en) * 2020-03-07 2020-06-09 安徽安舜水利建设工程有限公司 Foundation injection sleeve and construction method

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Application publication date: 20130306