CN105649053A - Construction method of multielement stiffness composite pile - Google Patents

Construction method of multielement stiffness composite pile Download PDF

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Publication number
CN105649053A
CN105649053A CN201610079641.XA CN201610079641A CN105649053A CN 105649053 A CN105649053 A CN 105649053A CN 201610079641 A CN201610079641 A CN 201610079641A CN 105649053 A CN105649053 A CN 105649053A
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CN
China
Prior art keywords
pile
polynary
composite pile
stiffness
construction
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Application number
CN201610079641.XA
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Chinese (zh)
Inventor
沙焕焕
邓亚光
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沙焕焕
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Application filed by 沙焕焕 filed Critical 沙焕焕
Priority to CN201610079641.XA priority Critical patent/CN105649053A/en
Publication of CN105649053A publication Critical patent/CN105649053A/en

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Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22Piles
    • E02D5/34Concrete or concrete-like piles cast in position ; Apparatus for making same
    • E02D5/46Concrete or concrete-like piles cast in position ; Apparatus for making same making in situ by forcing bonding agents into gravel fillings or the soil
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22Piles
    • E02D5/50Piles comprising both precast concrete portions and concrete portions cast in situ

Abstract

The invention discloses a construction method of a multielement stiffness composite pile. The construction method comprises the steps that a plurality of spraying pipes for different materials are arranged in a stirring shaft, and nozzles of the spraying pipes are arranged at the different portions of the stirring shaft or stirring blades; when the stirring shaft runs in a hole, through high-pressure air sprayed by the spraying pipes, water cuts original soil, stirring is carried out, and therefore soil is softened; and the materials are sprayed into the softened soil and are stirred, meanwhile, through a chain and back pressure spiral blades arranged on a pile machine, cement composite soil within the total-length range is subject to rotary pressing, extrusion and expansion, and the high-strength multielement stiffness cement composite pile with the maximum dry density is formed. The multielement stiffness composite pile is reasonable in structure, convenient to construct and good in construction quality, and compression resistance, pulling resistance and horizontal force resistance are superior to those of existing pile types like a drilling pouring pile; according to the water content of different kinds of soil, the water containing ratio, the kind of curing agents and the mixing amount are adjusted; and according to the load character and magnitude, the type of the multielement stiffness composite pile can be adjusted, and therefore the strength of the multielement stiffness composite pile is coordinately matched with the strength of a core pile body.

Description

The construction method of polynary stiff composite pile

Technical field

The present invention relates to the construction method of a kind of.

Background technology

The powder that the production method of existing soil cement is single sprays, starches spray stirring, slip casting, three axles stirrings, high-pressure rotary-spray and chemical grouting; Existing single rigid pile is difficult to give full play to pile shaft material intensity; The slurry cumulative water-oil ratios such as existing high-pressure rotary-spray and three axes agitating pile are higher, it is difficult to by compacted densification; Existing powder-spray pile spray power is less, and be difficult to dust smoothly in the soil layer that particularly deep water content is relatively low uniform stirring.

Summary of the invention

It is an object of the invention to provide one and overcome disadvantage mentioned above, retain the construction method of the polynary stiff composite pile of various method advantage.

The technical solution of the present invention is:

The construction method of a kind of polynary stiff composite pile, is characterized in that: comprise the following steps:

(1) arranging the jet pipe of many different materials in shaft, the nozzle of each jet pipe is arranged on the different parts of shaft or stirring vane;

(2) when boring under shaft, the pressure-air that sprayed by jet pipe, water cut undisturbed soil, and stir, make soft of soil;

(3) described different material is the mixed dry material containing different powder body firming agent such as () cement, Calx, Gypsum Fibrosum, silica flours and bulk solid aggregate; Being sprayed into by above-mentioned material in the softened soil body and stir, by the chain arranged on stake machine and back-pressure helical blade the cementitious composite soil body in length range carries out spinning squeezed simultaneously, formation reaches the high-strength polynary stiffness cementitious composite pile body of maximum dry density; The polynary stiffness cementitious composite pile body water content that above-mentioned process is formed is optimum moisture content (being about 20% ~ 40%).

When the polynary stiffness cementitious composite pile body formed is firmly not solidifying, the heart squeezes into rigid core stake more wherein, again the polynary stiffness cementitious composite pile body in compacted periphery and pile peripheral earth; Core stake is the complex form (polynary) of cast-in-place concrete, prefabricated pile (unitary) or cast-in-place concrete and prefabricated pile.

When cast-in-place concrete core stake is firmly not solidifying, the heart squeezes into prefabricated pile more wherein.

Described prefabricated pile is the pile tube of type, hollow square pile, the solid piles such as reinforced concrete, steel pipe or top steel pipe lower rebar concrete.The position that pile body stress is bigger adopts steel pipe pile tube, steel pipe hollow square pile, steel pipe solid pile. Microdilatancy high-strength concrete or the high strength RC of certain length it is further filled with in pile tube, hollow square pile cavity.

Core stake is longer than peripheral polynary stiffness cementitious composite pile body; Or core stake is shorter than peripheral polynary stiffness cementitious composite pile body; Or core stake is isometric with periphery polynary stiffness cementitious composite pile body.

After step (3), water spray stirring forms the cementitious composite soil body of high-moisture liquid-plastic state again, and when rigid core stake is squeezed at this cementitious composite soil body center, the cementitious composite soil body overflows or enters in hollow core stake cavity, it is to avoid produce soil compaction effect.

Pile body structure of the present invention is reasonable, easy construction, and construction quality is good, and resistance to compression resistance to plucking and horizontal force resistant are better than the pile-type such as existing cast-in-situ bored pile; And cumulative water-oil ratio, firming agent kind and volume can be adjusted according to different soil property water content. The form of polynary stiff composite pile can be adjusted according to the character of load and size with so as to coordinate to mate with core stake pile strength.

Below in conjunction with embodiment, the invention will be further described.

Detailed description of the invention

The construction method of a kind of polynary stiff composite pile, is characterized in that: comprise the following steps:

(1) arranging the jet pipe of many different materials in shaft, the nozzle of each jet pipe is arranged on the different parts of shaft or stirring vane;

(2) when boring under shaft, the pressure-air that sprayed by jet pipe, water cut undisturbed soil, and stir, make soft of soil;

(3) described different material is the mixed dry material containing different powder body firming agent such as () cement, Calx, Gypsum Fibrosum, silica flours and bulk solid aggregate; Being sprayed into by above-mentioned material in the softened soil body and stir, by the chain arranged on stake machine and back-pressure helical blade the cementitious composite soil body in length range carries out spinning squeezed simultaneously, formation reaches the high-strength polynary stiffness cementitious composite pile body of maximum dry density; The polynary stiffness cementitious composite pile body water content that above-mentioned process is formed is optimum moisture content (being about 20% ~ 40%).

When the polynary stiffness cementitious composite pile body formed is firmly not solidifying, the heart squeezes into rigid core stake more wherein, again the polynary stiffness cementitious composite pile body in compacted periphery and pile peripheral earth; Core stake is the complex form (polynary) of cast-in-place concrete, prefabricated pile (unitary) or cast-in-place concrete and prefabricated pile.

When cast-in-place concrete core stake is firmly not solidifying, the heart squeezes into prefabricated pile more wherein.

Described prefabricated pile is the pile tube of type, hollow square pile, the solid piles such as reinforced concrete, steel pipe or top steel pipe lower rebar concrete. The position that pile body stress is bigger adopts steel pipe pile tube, steel pipe hollow square pile, steel pipe solid pile. Microdilatancy high-strength concrete or the high strength RC of certain length it is further filled with in pile tube, hollow square pile cavity.

Core stake is longer than peripheral polynary stiffness cementitious composite pile body; Or core stake is shorter than peripheral polynary stiffness cementitious composite pile body; Or core stake is isometric with periphery polynary stiffness cementitious composite pile body.

After step (3), water spray stirring forms the cementitious composite soil body of high-moisture liquid-plastic state again, and when rigid core stake is squeezed at this cementitious composite soil body center, the cementitious composite soil body overflows or enters in hollow core stake cavity, it is to avoid produce soil compaction effect.

Claims (8)

1. a construction method for polynary stiff composite pile, is characterized in that: comprise the following steps:
(1) arranging the jet pipe of many different materials in shaft, the nozzle of each jet pipe is arranged on the different parts of shaft or stirring vane;
(2) when boring under shaft, the pressure-air that sprayed by jet pipe, water cut undisturbed soil, and stir, make soft of soil;
(3) being sprayed into by above-mentioned material in the softened soil body and stir, by the chain arranged on stake machine and back-pressure helical blade the cementitious composite soil body in length range carries out spinning squeezed simultaneously, formation reaches the polynary stiffness cementitious composite pile body of maximum dry density; The polynary stiffness cementitious composite pile body water content that above-mentioned process is formed is 20% ~ 40%.
2. the construction method of polynary stiff composite pile according to claim 1, it is characterized in that: when the polynary stiffness cementitious composite pile body formed is firmly not solidifying, the heart squeezes into rigid core stake more wherein, again the polynary stiffness cementitious composite pile body in compacted periphery and pile peripheral earth; Core stake is the complex form of cast-in-place concrete, prefabricated pile or cast-in-place concrete and prefabricated pile.
3. the construction method of polynary stiff composite pile according to claim 2, is characterized in that: when cast-in-place concrete core stake is firmly not solidifying, the heart squeezes into prefabricated pile more wherein.
4. the construction method of polynary stiff composite pile according to claim 3, is characterized in that: described prefabricated pile is reinforced concrete, steel pipe, the pile tube of top steel pipe lower rebar concrete, hollow square pile or solid pile.
5. the construction method of polynary stiff composite pile according to claim 4, is characterized in that: the position that pile body stress is bigger adopts steel pipe pile tube, steel pipe hollow square pile, steel pipe solid pile.
6. the construction method of polynary stiff composite pile according to claim 4, is characterized in that: be further filled with microdilatancy high-strength concrete or the high strength RC of certain length in pile tube, hollow square pile cavity.
7. the construction method of polynary stiff composite pile according to claim 2, is characterized in that: core stake is longer than peripheral polynary stiffness cementitious composite pile body; Or core stake is shorter than peripheral polynary stiffness cementitious composite pile body; Or core stake is isometric with periphery polynary stiffness cementitious composite pile body.
8. the construction method of polynary stiff composite pile according to claim 1, is characterized in that: after step (3), and water spray stirring forms the cementitious composite soil of high-moisture liquid-plastic state again.
CN201610079641.XA 2016-02-05 2016-02-05 Construction method of multielement stiffness composite pile CN105649053A (en)

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Application Number Priority Date Filing Date Title
CN201610079641.XA CN105649053A (en) 2016-02-05 2016-02-05 Construction method of multielement stiffness composite pile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610079641.XA CN105649053A (en) 2016-02-05 2016-02-05 Construction method of multielement stiffness composite pile

Publications (1)

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CN105649053A true CN105649053A (en) 2016-06-08

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106284305A (en) * 2016-10-17 2017-01-04 沙焕焕 The expanding stiff composite pile of high spray
CN106284391A (en) * 2016-10-17 2017-01-04 沙焕焕 Length pulls together to control heavy stiff composite pile system
CN107964946A (en) * 2017-12-04 2018-04-27 沙焕焕 The construction method of stiff composite pile based on pump drainage water precipitation
CN108978641A (en) * 2018-08-17 2018-12-11 江苏劲桩基础工程有限公司 The construction method of compound strength stake
CN109706984A (en) * 2019-01-31 2019-05-03 沙焕焕 The construction method for dredging long composite pile system based on measured data
CN109930596A (en) * 2019-04-09 2019-06-25 沙焕焕 A kind of construction method of cement earth pile

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN85101005A (en) * 1985-04-01 1986-05-10 冶金工业部建筑研究总院 High-pressure rotating dry spraying method and two-tube rotation dry sprayer
JPH07300855A (en) * 1994-05-10 1995-11-14 Marutoku Kigyo:Kk Method of ground excavation
CN1186891A (en) * 1997-12-26 1998-07-08 秦忠泽 Dusting stirring extruding compact pile forming technology
CN1259604A (en) * 1999-12-10 2000-07-12 王光明 Cement earth reinforced composite piling method
CN1542235A (en) * 2003-04-29 2004-11-03 天津市水利科学研究所 Strong-core deep injection stirring pile-making method and special drill bit therefor
CN1944809A (en) * 2006-10-26 2007-04-11 上海隧道工程股份有限公司 Three pipe double high pressure rotary jet sprouting reinforced construction method and its equipment
CN101230572A (en) * 2008-02-27 2008-07-30 东南大学 Pile-forming operation method for bidirectional agitation cement injection pile
CN101250873A (en) * 2008-04-10 2008-08-27 徐玉杰 High-pressure injection slip-casting construction method for flabbiness foundation
CN101858079A (en) * 2010-06-02 2010-10-13 山东省建筑科学研究院 Core filling tubular pile cement composite foundation pile and construction method
CN102127910A (en) * 2010-06-02 2011-07-20 山东省建筑科学研究院 Method for constructing soil-cement composite foundation pile as core tubular pile
CN102155012A (en) * 2011-05-20 2011-08-17 中冶建筑研究总院有限公司 Foundation reinforcing construction method employing powder high-pressure injection grouting
CN103806457A (en) * 2012-11-07 2014-05-21 北京市市政四建设工程有限责任公司 Novel construction technology of waterproof curtain

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN85101005A (en) * 1985-04-01 1986-05-10 冶金工业部建筑研究总院 High-pressure rotating dry spraying method and two-tube rotation dry sprayer
JPH07300855A (en) * 1994-05-10 1995-11-14 Marutoku Kigyo:Kk Method of ground excavation
CN1186891A (en) * 1997-12-26 1998-07-08 秦忠泽 Dusting stirring extruding compact pile forming technology
CN1259604A (en) * 1999-12-10 2000-07-12 王光明 Cement earth reinforced composite piling method
CN1542235A (en) * 2003-04-29 2004-11-03 天津市水利科学研究所 Strong-core deep injection stirring pile-making method and special drill bit therefor
CN1944809A (en) * 2006-10-26 2007-04-11 上海隧道工程股份有限公司 Three pipe double high pressure rotary jet sprouting reinforced construction method and its equipment
CN101230572A (en) * 2008-02-27 2008-07-30 东南大学 Pile-forming operation method for bidirectional agitation cement injection pile
CN101250873A (en) * 2008-04-10 2008-08-27 徐玉杰 High-pressure injection slip-casting construction method for flabbiness foundation
CN101858079A (en) * 2010-06-02 2010-10-13 山东省建筑科学研究院 Core filling tubular pile cement composite foundation pile and construction method
CN102127910A (en) * 2010-06-02 2011-07-20 山东省建筑科学研究院 Method for constructing soil-cement composite foundation pile as core tubular pile
CN102155012A (en) * 2011-05-20 2011-08-17 中冶建筑研究总院有限公司 Foundation reinforcing construction method employing powder high-pressure injection grouting
CN103806457A (en) * 2012-11-07 2014-05-21 北京市市政四建设工程有限责任公司 Novel construction technology of waterproof curtain

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106284305A (en) * 2016-10-17 2017-01-04 沙焕焕 The expanding stiff composite pile of high spray
CN106284391A (en) * 2016-10-17 2017-01-04 沙焕焕 Length pulls together to control heavy stiff composite pile system
CN107964946A (en) * 2017-12-04 2018-04-27 沙焕焕 The construction method of stiff composite pile based on pump drainage water precipitation
CN108978641A (en) * 2018-08-17 2018-12-11 江苏劲桩基础工程有限公司 The construction method of compound strength stake
CN109706984A (en) * 2019-01-31 2019-05-03 沙焕焕 The construction method for dredging long composite pile system based on measured data
CN109930596A (en) * 2019-04-09 2019-06-25 沙焕焕 A kind of construction method of cement earth pile

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Application publication date: 20160608