CN106284321A - A kind of construction method of composite pile foundation - Google Patents
A kind of construction method of composite pile foundation Download PDFInfo
- Publication number
- CN106284321A CN106284321A CN201610677687.1A CN201610677687A CN106284321A CN 106284321 A CN106284321 A CN 106284321A CN 201610677687 A CN201610677687 A CN 201610677687A CN 106284321 A CN106284321 A CN 106284321A
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- CN
- China
- Prior art keywords
- pile
- cement
- construction method
- mixing method
- construction
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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.)
- Granted
Links
- 238000010276 construction Methods 0.000 title claims abstract description 27
- 239000002131 composite material Substances 0.000 title claims abstract description 8
- 239000004568 cement Substances 0.000 claims abstract description 39
- 238000002156 mixing Methods 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 23
- 239000002689 soil Substances 0.000 claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 15
- 239000010959 steel Substances 0.000 claims abstract description 15
- 230000003068 static effect Effects 0.000 claims abstract description 7
- 238000005266 casting Methods 0.000 claims abstract description 4
- 239000000843 powder Substances 0.000 claims abstract description 4
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 3
- 239000011083 cement mortar Substances 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000012544 monitoring process Methods 0.000 claims description 7
- 230000006378 damage Effects 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 3
- 238000007654 immersion Methods 0.000 claims description 2
- 230000008719 thickening Effects 0.000 claims description 2
- 239000013535 sea water Substances 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract description 2
- 230000003628 erosive effect Effects 0.000 abstract description 2
- 230000002787 reinforcement Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 6
- 239000004927 clay Substances 0.000 description 5
- 239000004576 sand Substances 0.000 description 4
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229940098458 powder spray Drugs 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- 241000222065 Lycoperdon Species 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- 241000768494 Polymorphum Species 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 239000005442 atmospheric precipitation Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 230000009189 diving Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000003864 humus Substances 0.000 description 1
- 150000004677 hydrates Chemical class 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000003229 sclerosing agent Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
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
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/46—Concrete or concrete-like piles cast in position ; Apparatus for making same making in situ by forcing bonding agents into gravel fillings or the soil
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
-
- 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
Landscapes
- 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)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The present application relates to the construction method of a kind of composite pile foundation, comprises the steps: that (1) utilizes jet drill rig construction cement mixing method, selects jet cement powder or cement mortar according to soil property situation；(2) steel pile casting formation squeezed to cement mixing method center pile tube stake holes is utilized；(3) the pile tube utilization with annular steel pile tip is arranged at its internal pile sinking sleeve pipe static pressure or hammering sinks in stake holes and reaches design attitude；(4) pile after pile sinking sleeve pipe is extracted.The pile foundation reliability of the method construction is high, little to surrounding environment influence.Being simultaneous under littoral environment, cement mixing method easily loses durability under seawater eroding, adds detection equipment and reinforcement equipment, effectively improve the durability of pile foundation in Pile Foundations Design.
Description
Technical field
The present invention relates to the construction method of a kind of composite pile foundation, a kind of in mud environment, carry out composite pile foundation
Construction method.
Background technology
At present, when carrying out pile foundation construction in coastal riverine muck soil environment along the lake, utilize Soil-cement more
Pile-making method is constructed.Cement mixing method be utilize cement as firming agent, by Mixing Machine, in ground depths by weak soil and solid
Agent action of forced stirring, utilizes produced series of physical chemical reaction between firming agent and weak soil, makes weak soil harden into and have
The high-quality ground of globality, water stability and some strength.
The ultimate principle of soil-cement is physical-chemical reaction process based on soil-cement, it and concrete hardening
Mechanism is different, and owing to cement mixing content is few, cement is to have certain active medium--soil around under react, setting rate
Relatively slow, and effect complexity, after cement hydrolysis and aquation generate various hydrates, the ion of the generation again exchange having and granule are turned into
With and pozzolanic reaction, make soil-cement body intensity be greatly improved.
At present, the construction method that cement mixing method is usual includes powder spray and deep mixing method.Powder spray refers to utilize
The sclerosing agent (such as cement, Calx, flyash etc.) of powdered is stirred in the soil body in the range of pile by piling facility uniformly, makes
Soil body hardening forms pile body；Deep mixing method is usually used in reinforcing saturated soft clay foundation, and it is to utilize the material such as cement, Calx to make
For the host of firming agent, by Mixing Machine on the spot by weak soil and firming agent action of forced stirring, utilize institute between firming agent and weak soil
Series of physical one chemical reaction produced, makes weak soil harden into the high-quality ground with globality, water stability and some strength.
But, due to soil cement material itself, its bearing capacity is subject to certain restrictions, and its durability is also
Not as good as other pile-type, during construction, intensity meets requirement, but elapses over time, be particularly subject in a surrounding seawater sulfate radical from
The impact of son, magnesium ion and calcium ion etc., its intensity can be had a greatly reduced quality over time, brings hidden danger to the engineering in pile foundation.
And utilize traditional pile tube as the pile foundation of mud soil property architectural engineering, due to pile peripheral earth limited strength, it is impossible to
Good bonding and protecting is brought to pile tube；And due to coastal, along the river, top layer along the lake have some miscellaneous fills, intensity is relatively
Height, damages when easily giving pile tube pile sinking so that the construction quality of pile tube is not easy to ensure.
For overcoming drawbacks described above, the present invention designs the construction method of a kind of composite pile foundation, and its periphery construction soil cement, at it
Pipe pile core is made in inside.The stake that this construction method becomes can not only the anti-pressure ability of comprehensive two kinds of pile-type, but also ensure that
The durability of cement earth pile and the construction quality of pile tube.
Summary of the invention
The construction method of a kind of composite pile foundation, comprises the steps: that (1) utilizes jet drill rig construction cement mixing method,
Jet cement powder or cement mortar is selected according to soil property situation；(2) steel pile casting shape squeezed to cement mixing method center is utilized
Become pile tube stake holes；(3) the pile tube utilization with annular steel pile tip is arranged at its internal pile sinking sleeve pipe static pressure or hammering is sunk to
In stake holes and reach design attitude；(4) pile after pile sinking sleeve pipe is extracted.
After pile, hard plastics heavy wall Grouting Pipe is set in the cement mixing method of pile tube side, and is caused
Outside foundation ditch.The lateral surface 2-5cm of Grouting Pipe distance cement mixing method.The Grouting Pipe of the stake of foundation ditch periphery is provided with
With the nuditing wire of insulating paper parcel, wire is connected with monitoring instrument, when insulating paper is because subsoil water immersion after coming off, exposed leads
Two terminations of line are turned on by water, are appreciated that cement mixing method there occurs destruction by the change of monitoring instrument.
Pile sinking sleeve pipe in step (3) is steel, and its end withstands on the interior along upper of steel pile tip, its top be provided with static pressure face or
Impact surface.Pile tube carries out thickening process at phreatic line position.The weight of steel pile tip is not less than 1/8th of tubular pile body.
This kind of setting is possible to prevent pile tube to be exploded, it is ensured that the service life of pile tube, ensures the perpendicularity during tube pile construction simultaneously.
The pile foundation reliability constructed according to the method for the present invention is high, little to surrounding environment influence.It is simultaneous in strand
Under environment, cement mixing method easily loses durability under seawater eroding, adds detection equipment and benefit in Pile Foundations Design
Strong equipment, effectively improves the durability of pile foundation.
Accompanying drawing explanation
Fig. 1 is the side view after the application construction method pile；
Fig. 2 is the side view during tube pile construction.
1-pile sinking sleeve pipe, 2-pile tube, 3-steel pile tip, 4-Grouting Pipe, 5-insulating paper, 6-wire, 7-monitoring instrument.
Detailed description of the invention
Certain engineering place ground elevation is 125～2170mm, and surface feature was Intertidal zone before the beginning of the nineties in last century,
Filling out sea by artificial fill to form, geomorphic type is littoral plain now.This stratum, place in the range of depth of exploration from and
Under be divided into 4 big layers.
1st layer: plain fill, thickness 1100～7180mm.Variegated, loose, mainly it is cut by pools such as rubble, block stone, sand and builds
Building refuse forms, and ballast grain sizes mostly is 5～40cm, and minority is more than 100cm, and disproportionately graded, the most uneven, it is poor, between granule to sort
By sand filling.Character is uneven, loosely organized, and soil layer discreteness is relatively big, has anisotropy, and thickness changes greatly.
2nd layer: silty clay interlayer, thickness 170mm.Lark, wet, soft mould, containing sand.Dry strength is medium, medium toughness,
Shake reaction nothing, slightly gloss.
3rd layer: very soft sill clay, mud, thickness 9110～23150mm.Lycoperdon polymorphum Vitt, saturated, stream is moulded, and dry strength is high,
Toughness is hard, the smooth slightly gloss in soil face, and shake reaction is slow, and containing organic and humus, taste is smelly, has Extra-fine sand thin layer to divide in layer
Cloth.Mechanical property is poor, has high-moisture, high-compressibility, high sensitivity, low intensive feature.
4th layer: silty clay, thickness 5160～9100m.Lark, plastic, the wettest, dry strength is medium, medium toughness,
Slightly gloss, local segment contains gravel.For middle compression soil, whole audience major part is distributed.
According to field survey situation, measure static level in drill hole.Phreatic water predominantly tax be stored in plain fill or
Diving in very soft sill clay, mud, vertically infiltrated by Atmospheric precipitation and under surface water body impregnation slow to, runoff, with
Evaporation mode is drained and is drained to the lateral runoff of adjacent domain.This prospecting during record fixed level 160～1160mm it
Between, subsoil water year amplitude of variation be 15～115mm.
According to above geological condition, designing pile tube a length of 15-30 rice, stake footpath 600mm, cement earth pile is 12-25 rice,
Stake footpath 1000mm.Construct cement mixing method first with jet drill rig, jet cement powder take the circumstances into consideration to add fine coal in the soil body
Ash；Then steel pile casting formation squeezed to cement mixing method center pile tube stake holes is utilized；By the pipe with annular steel pile tip
Stake utilization is arranged at its internal pile sinking sleeve pipe static pressure or hammering sinks in stake holes and reaches design attitude；Extract pile sinking sleeve pipe
Rear pile.The last hard plastics heavy wall Grouting Pipe that arranges in the cement mixing method of the pile tube side of foundation ditch periphery, and will
It causes outside foundation ditch.The lateral surface 3cm of Grouting Pipe distance cement mixing method.Grouting Pipe is provided with and wraps up with insulating paper
Nuditing wire, wire is connected with monitoring instrument, when insulating paper is because subsoil water soaks after coming off, two terminations of nuditing wire
Turned on by water, be appreciated that cement mixing method there occurs destruction by the change of monitoring instrument.
Claims (6)
1. the construction method of a composite pile foundation, it is characterised in that comprise the steps: that (1) utilizes jet drill rig construction cement
Soil mixing pile, selects jet cement powder or cement mortar according to soil property situation；(2) utilize steel pile casting to cement mixing method centre bit
Put squeezed formation pile tube stake holes；(3) pile tube with annular steel pile tip is utilized be arranged at its internal pile sinking sleeve pipe static pressure or
Hammering sinks in stake holes and reaches design attitude；(4) pile after pile sinking sleeve pipe is extracted.
2. construction method as claimed in claim 1, it is characterised in that after pile, set in the cement mixing method of pile tube side
Put hard plastics heavy wall Grouting Pipe, and caused outside foundation ditch.
3. construction method as claimed in claim 2, it is characterised in that the lateral surface 2-of Grouting Pipe distance cement mixing method
5cm。
4. construction method as claimed in claim 2 or claim 3, it is characterised in that be provided with in the Grouting Pipe of the stake of foundation ditch periphery
With the nuditing wire of insulating paper parcel, wire is connected with monitoring instrument, when insulating paper is because subsoil water immersion after coming off, exposed leads
Two terminations of line are turned on by water, are appreciated that cement mixing method there occurs destruction by the change of monitoring instrument.
5. construction method as claimed in claim 1, it is characterised in that the pile sinking sleeve pipe in step (3) is steel, and its end is pushed up
On the interior edge of steel pile tip, its top is provided with static pressure face or impact surface.
6. the construction method as described in claim 1 or 5, it is characterised in that pile tube is carried out at thickening at phreatic line position
Reason, the weight of steel pile tip is not less than 1/8th of tubular pile body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610677687.1A CN106284321B (en) | 2016-08-17 | 2016-08-17 | A kind of construction method of composite pile foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610677687.1A CN106284321B (en) | 2016-08-17 | 2016-08-17 | A kind of construction method of composite pile foundation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106284321A true CN106284321A (en) | 2017-01-04 |
| CN106284321B CN106284321B (en) | 2018-05-08 |
Family
ID=57678859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610677687.1A Active CN106284321B (en) | 2016-08-17 | 2016-08-17 | A kind of construction method of composite pile foundation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106284321B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108179753A (en) * | 2017-12-28 | 2018-06-19 | 安徽新瑞重工股份有限公司 | A kind of construction method of bottom bridge pile foundation |
| CN110453682A (en) * | 2019-08-07 | 2019-11-15 | 启东市建筑设计院有限公司 | A kind of tubular pole reinforcement system construction method |
| CN110847205A (en) * | 2019-11-08 | 2020-02-28 | 中煤江南建设发展有限公司 | Composite pile foundation structure and construction method thereof |
| CN112726582A (en) * | 2021-01-08 | 2021-04-30 | 中国建筑第二工程局有限公司 | PHC cement soil mixing composite pile construction process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008175039A (en) * | 2007-01-22 | 2008-07-31 | Yasuyuki Yamamoto | Method of driving both steel pipe pile and soil cement pile |
| CN201411687Y (en) * | 2009-02-25 | 2010-02-24 | 河海大学 | Corrugated plastic sleeve pipe granule grouting pile with hole |
| CN202730791U (en) * | 2012-08-10 | 2013-02-13 | 福建省华荣建设集团有限公司 | Composite pile foundation of building |
| CN204326070U (en) * | 2014-09-15 | 2015-05-13 | 上海宝冶集团有限公司 | A kind of PHC pile tube open-type steel pile tip |
| CN105220700A (en) * | 2015-09-11 | 2016-01-06 | 中铁第四勘察设计院集团有限公司 | Foundation pit waterproof curtain reinforcement |
-
2016
- 2016-08-17 CN CN201610677687.1A patent/CN106284321B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008175039A (en) * | 2007-01-22 | 2008-07-31 | Yasuyuki Yamamoto | Method of driving both steel pipe pile and soil cement pile |
| CN201411687Y (en) * | 2009-02-25 | 2010-02-24 | 河海大学 | Corrugated plastic sleeve pipe granule grouting pile with hole |
| CN202730791U (en) * | 2012-08-10 | 2013-02-13 | 福建省华荣建设集团有限公司 | Composite pile foundation of building |
| CN204326070U (en) * | 2014-09-15 | 2015-05-13 | 上海宝冶集团有限公司 | A kind of PHC pile tube open-type steel pile tip |
| CN105220700A (en) * | 2015-09-11 | 2016-01-06 | 中铁第四勘察设计院集团有限公司 | Foundation pit waterproof curtain reinforcement |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108179753A (en) * | 2017-12-28 | 2018-06-19 | 安徽新瑞重工股份有限公司 | A kind of construction method of bottom bridge pile foundation |
| CN110453682A (en) * | 2019-08-07 | 2019-11-15 | 启东市建筑设计院有限公司 | A kind of tubular pole reinforcement system construction method |
| CN110453682B (en) * | 2019-08-07 | 2021-03-02 | 启东市建筑设计院有限公司 | Construction method of tubular pile reinforcement system |
| CN110847205A (en) * | 2019-11-08 | 2020-02-28 | 中煤江南建设发展有限公司 | Composite pile foundation structure and construction method thereof |
| CN112726582A (en) * | 2021-01-08 | 2021-04-30 | 中国建筑第二工程局有限公司 | PHC cement soil mixing composite pile construction process |
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| Publication number | Publication date |
|---|---|
| CN106284321B (en) | 2018-05-08 |
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| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhao Zhijun Inventor after: Geng Zhaozu Inventor after: Liu Congbo Inventor after: Yu Yonggang Inventor after: Yu Yizhuo Inventor after: Pan Youchun Inventor after: Wang Shenping Inventor after: Nie Jianwei Inventor after: Dong Xiuyuan Inventor after: Liu Shunhua Inventor after: Li Chunlin Inventor before: Liu Congbo |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20180408 Address after: 266600 Weihai Road, Laixi City, Qingdao, Shandong Province, No. 3 Applicant after: Ronghua Construction Group Co Ltd Address before: Baoding City, Hebei province 073000 families of Hospital of Dingzhou city Xicheng District drilling team Applicant before: Liu Congbo |
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