CN103397630A - Stiffening pile with grouting bags - Google Patents

Stiffening pile with grouting bags Download PDF

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Publication number
CN103397630A
CN103397630A CN201310323429XA CN201310323429A CN103397630A CN 103397630 A CN103397630 A CN 103397630A CN 201310323429X A CN201310323429X A CN 201310323429XA CN 201310323429 A CN201310323429 A CN 201310323429A CN 103397630 A CN103397630 A CN 103397630A
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CN
China
Prior art keywords
slip casting
casting bag
pile
resistance
bag
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CN201310323429XA
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Chinese (zh)
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CN103397630B (en
Inventor
刘全林
宋伟民
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上海强劲地基工程股份有限公司
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Priority to CN201310323429.XA priority Critical patent/CN103397630B/en
Publication of CN103397630A publication Critical patent/CN103397630A/en
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Publication of CN103397630B publication Critical patent/CN103397630B/en

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Abstract

Disclosed is a stiffening pile with grouting bags. A stiffener is arranged inside a cement pile, at least one grouting bag is arranged on the stiffener, and cement paste or cement motor is filled into the grouting bags. After the grouting bags filled with the cement paste or the cement motor expand and solidify, frictional resistance and pulling resistance of the stiffening pile are greatly increased, deformation of the stressed stiffening pile is reduced, and safety of foundation pits is improved.

Description

A kind of stiffening pile with the slip casting bag

Technical field

The present invention relates to the Base hole supporting technology field, specifically relate to a kind of stiffening pile, further relate to a kind of stiffening pile with the slip casting bag.

Background technology

The Deep Foundation Pit Supporting Project of commonly using at present, the cement-soil stiffening pile has higher uplift resistance, in some weak soil layers, has obtained application, has obtained good technique effect.

But, the stratum large for water content, that water level is high, conventional stiffening pile curing time is longer, sometimes is difficult to meet the needs of tighter engineering of duration, and in the less engineering in fender post space, conventional stiffening pile form anchor is difficult to pass fender post.

Therefore, a kind of novel stiffening pile that has higher uplift resistance and bearing capacity and can address the above problem of exploitation is the key problem of this patent.

Summary of the invention

Technical problem to be solved by this invention is, overcomes problems of the prior art, and a kind of stiffening pile with the slip casting bag is provided.

In order to address the above problem technical scheme of the present invention, be such:

A kind of stiffening pile with the slip casting bag, stiffening pile for pattern foundation pit supporting structure or slope reinforcement is comprised of cement soil pile, reinforcing body, cement earth pile is formed by stirring or churning or mixing jet-grouting, reinforcing body is arranged on cement soil pile inside, it is characterized in that, on reinforcing body, be provided with at least one slip casting bag, on the slip casting bag, be provided with Grouting Pipe, the slip casting bag is flexible slip casting bag, in the slip casting bag, is marked with cement paste or cement mortar; Reinforcing body passes the slip casting bag.

The slip casting bag is that gas permeable material is made.

On described slip casting bag, be provided with control valve.

The external diameter of slip casting bag is greater than the external diameter of cement earth pile.

The external diameter of slip casting bag is less than or equal to the external diameter of cement earth pile.

Reinforcing body is connected with the resistance to plucking structure, and described slip casting bag is positioned at the front of resistance to plucking structure.

Reinforcing body is connected with the resistance to plucking structure, and described slip casting bag is positioned at the periphery of resistance to plucking structure.

Described slip casting bag and resistance to plucking structure are close to.

The external diameter of slip casting bag is greater than resistance to plucking structure external diameter.

Reinforcing body is connected with a resistance to plucking structure and a slip casting bag.

Reinforcing body is connected with a plurality of resistance to plucking structures and a plurality of slip casting bag.

The end of resistance to plucking structure is hemispherical, and reinforcing body is walked around hemispherical resistance to plucking structure.

Reinforcing body is steel strand.

Described steel strand are non-bending steel cable.

Described steel strand are the steel strand of part bonding.

The resistance to plucking structure is a cage structure body, and the end of cage structure body is hemispherical.

The resistance to plucking structure is form anchor.

Described form anchor end is hemispherical.

On described slip casting bag, be provided with the hole of passing for drilling rod and/or reinforcing body.

Beneficial effect, the stiffening pile with the slip casting bag of the present invention, when the slip casting of slip casting bag is expanded, can push soil-cement body compacted; Aqueous slurry or cement mortar in slip casting bag after expansion, after solidifying, increase anchoring body intensity, and improve anchoring body rigidity and strengthen local anti-pressure ability, thus frictional resistance and the uplift resistance of increase stiffening pile, frictional resistance and uplift resistance can improve more than 30%.

The accompanying drawing explanation

Below in conjunction with the drawings and specific embodiments, describe the present invention in detail;

Fig. 1 embodiment 1 is the structural representation of a kind of stiffening pile with the slip casting bag of the present invention.

Fig. 2 a is the first slip casting bag plane structure schematic diagram of the present invention.

Fig. 2 b is the second slip casting bag plane structure schematic diagram of the present invention.

Fig. 2 c is the third slip casting bag plane structure schematic diagram of the present invention.

Fig. 3 embodiment 2 is the structural representation of a kind of stiffening pile with the slip casting bag of the present invention.

Fig. 4 embodiment 3 is the structural representation of a kind of stiffening pile with the slip casting bag of the present invention.

Fig. 5 embodiment 4 is the structural representation of a kind of stiffening pile with the slip casting bag of the present invention.

Fig. 6 embodiment 5 is the structural representation of a kind of stiffening pile with the slip casting bag of the present invention.

Fig. 7 embodiment 6 is the structural representation of a kind of stiffening pile with the slip casting bag of the present invention.

The specific embodiment

For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.

Embodiment 1, referring to Fig. 1, and a kind of stiffening pile with the slip casting bag, stiffening pile is for pattern foundation pit supporting structure or slope reinforcement, oblique being arranged in the soil body.Stiffening pile is comprised of cement soil pile 1, reinforcing body 2, and cement soil pile 1 is formed by stirring or churning or mixing jet-grouting, and reinforcing body 2 is arranged on cement soil pile inside.Reinforcing body 2 is without bonding or the steel strand part bonding.Reinforcing body 2 is locked on the waist rail of foundation ditch, for uplift resistance and the frictional resistance that increases stiffening pile, slip casting bag 3 is set on reinforcing body 2, the interior filling concrete slurry of slip casting bag 3 or cement mortar, slip casting bag 3 solidifies induration of rear formation, the draft that induration can bear is delivered on reinforcing body 2, increases uplift resistance and the frictional resistance of stiffening pile.

Namely on reinforcing body 2, be provided with a slip casting bag 3, on slip casting bag 3, be provided with Grouting Pipe 4, slip casting bag 3 is flexible slip casting bag, in slip casting bag 3, is marked with cement paste or cement mortar.Before construction, slip casting bag 3 is flat, flat slip casting bag 3 connects reinforcing body 2, be that reinforcing body 2 passes the hole on slip casting bag 3, then by rig, reinforcing body 2 and slip casting bag 3 are brought in the prebored hole of stiffening pile together, then in follow-up construction, by Grouting Pipe 4 to injected water mud or cement mortar in the slip casting bag.Grouting Pipe 4 connects slip casting bag 3 and brings in prebored hole with construction.Grouting Pipe 4 is flexible non-metallic pipe or metal tube, after slip casting is complete, can be by Grouting Pipe 4 colligation shutoff, and after the slip casting bag solidified, Grouting Pipe was stayed the inside or is extracted as required.

Described slip casting bag 3 is provided with the control valve 8 that prevents that slurries from flowing backwards, and when slip casting in the slip casting bag, under outer grouting pressure, control valve 8 is opened, to slip casting in bag; Slip casting stops, and control valve 8 is closed automatically, and the slurry in the slip casting bag can not leak out.

Referring to Fig. 2 a, the hole 31 on slip casting bag 3, inner obstructed with slip casting bag 3, reinforcing body 2 passes hole 31, can not disturb the interior generation of slip casting bag 3, and slip casting bag 3 is still a complete closing bag.

Referring to Fig. 2 b, on slip casting bag 3, except the hole 31 that is provided with, also be provided with a drilling rod hole 32.In work progress, drilling rod passes drilling rod hole 32, and reinforcing body 2 passes 31, hole, hole 31 and drilling rod hole 32 can not disturbed the interior generation of slip casting bag 3, and slip casting bag 3 is still a complete closing bag.

Referring to Fig. 2 a, on slip casting bag 3, only be provided with drilling rod hole 32, drilling rod hole 32 is inner obstructed with slip casting bag 3, and during construction, reinforcing body 2 and drilling rod pass drilling rod hole 32 together, and drilling rod hole 32 can not disturbed the interior generation of slip casting bag 3, and slip casting bag 3 is still a complete closing bag.

The external diameter of the slip casting bag 3 after injected water mud or cement mortar is greater than the external diameter of resistance to plucking structure 5, or further greater than the external diameter of cement soil pile 1.Can certainly according to circumstances make the external diameter of slip casting bag be less than or equal to the external diameter of cement earth pile or the external diameter of resistance to plucking structure 5.

Further, reinforcing body 3 is connected with resistance to plucking structure 5.The end of resistance to plucking structure 5 is hemispherical, and reinforcing body 2 is walked around hemispherical resistance to plucking structure 5.Described slip casting bag 3 is close to resistance to plucking structure 5, and the external diameter of slip casting bag 3 is greater than the external diameter of resistance to plucking structure 5.

Resistance to plucking structure 5 is a cage structure body, and the end of cage structure body is hemispherical, and reinforcing body 3 is walked around resistance to plucking structure 5, forms the callable stiffening pile of reinforcing body.

Embodiment 2:

Referring to Fig. 3, on the basis of embodiment 1, on the reinforcing body 2 of described stiffening pile, be provided with a plurality of slip casting bags 3, except slip casting bag bottom, all the other each slip casting bags are close to a form anchor 6, form series connection structure.Further increase the uplift resistance of stiffening pile, all the other are with embodiment 1.

Embodiment 3:

Referring to Fig. 4, on the reinforcing body 2 of described stiffening pile, be provided with a slip casting bag 3, slip casting bag 3 is positioned at reinforcing body bottom, whole stiffening pile does not arrange the resistance to plucking structure, after the cement paste in the slip casting bag or cement mortar were solidified, namely as the resistance to plucking structure, all the other were with embodiment 1.

Embodiment 4:

Referring to Fig. 5, on the reinforcing body 2 of described stiffening pile, be provided with a slip casting bag 3, this slip casting bag 3 is close to a form anchor 6.All the other are with embodiment 1.

Embodiment 5:

Referring to Fig. 6, on the reinforcing body 2 of described stiffening pile, be provided with a slip casting bag 3, this slip casting bag 3 is close to a form anchor 6.

Described form anchor 6 ends are circular arc, and all the other are with embodiment 1.

Embodiment 6:

Referring to Fig. 7, in the periphery of resistance to plucking structure 5, be provided with slip casting bag 3, slip casting bag 3 wraps up resistance to plucking structure 5, and all the other are with embodiment 1.

The described stiffening pile with the slip casting bag of the present embodiment, when the slip casting of slip casting bag is expanded, soil-cement body is applied to the compacted effect of extruding, aqueous slurry or cement mortar in slip casting bag after expansion, after solidifying, increase anchoring body intensity, improve anchoring body rigidity and strengthen local anti-pressure ability, thereby increase frictional resistance and the uplift resistance of stiffening pile, frictional resistance and uplift resistance can improve more than 30%.

Above demonstration and described basic principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and manual, describes just illustrates principle of the present invention; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of patent of the present invention is defined by appending claims and equivalent thereof.

Claims (19)

1. stiffening pile with the slip casting bag, stiffening pile for pattern foundation pit supporting structure or slope reinforcement is comprised of cement soil pile, reinforcing body, cement earth pile is formed by stirring or churning or mixing jet-grouting, reinforcing body is arranged on cement soil pile inside, it is characterized in that, on reinforcing body, be provided with at least one slip casting bag, on the slip casting bag, be provided with Grouting Pipe, the slip casting bag is flexible slip casting bag, in the slip casting bag, is marked with cement paste or cement mortar; Reinforcing body passes the slip casting bag.
2. a kind of stiffening pile with the slip casting bag according to claim 1, is characterized in that, the slip casting bag is that gas permeable material is made.
3. a kind of stiffening pile with the slip casting bag according to claim 1, is characterized in that, on described slip casting bag, is provided with control valve.
4. a kind of stiffening pile with the slip casting bag according to claim 1, is characterized in that, the external diameter of slip casting bag is greater than the external diameter of cement earth pile.
5. a kind of stiffening pile with the slip casting bag according to claim 1, is characterized in that, the external diameter of slip casting bag is less than or equal to the external diameter of cement earth pile.
6. a kind of stiffening pile with the slip casting bag according to claim 1, is characterized in that, reinforcing body is connected with the resistance to plucking structure, and described slip casting bag is positioned at the front of resistance to plucking structure.
7. a kind of stiffening pile with the slip casting bag according to claim 1, is characterized in that, reinforcing body is connected with the resistance to plucking structure, and described slip casting bag is positioned at the periphery of resistance to plucking structure.
8. a kind of stiffening pile with the slip casting bag according to claim 6, is characterized in that, described slip casting bag and resistance to plucking structure are close to.
9. a kind of stiffening pile with the slip casting bag according to claim 6, is characterized in that, the external diameter of slip casting bag is greater than resistance to plucking structure external diameter.
10. a kind of stiffening pile with the slip casting bag according to claim 6, is characterized in that, reinforcing body is connected with a resistance to plucking structure and a slip casting bag.
11. a kind of stiffening pile with the slip casting bag according to claim 6, is characterized in that, reinforcing body is connected with a plurality of resistance to plucking structures and a plurality of slip casting bag.
12. a kind of stiffening pile with the slip casting bag according to claim 6 is characterized in that the end of resistance to plucking structure is hemispherical, reinforcing body is walked around hemispherical resistance to plucking structure.
13. a kind of stiffening pile with the slip casting bag according to claim 1 is characterized in that reinforcing body is steel strand.
14. a kind of stiffening pile with the slip casting bag according to claim 13 is characterized in that described steel strand are non-bending steel cable.
15. a kind of stiffening pile with the slip casting bag according to claim 13, is characterized in that, described steel strand are the steel strand of part bonding.
16. a kind of stiffening pile with the slip casting bag according to claim 6, is characterized in that, the resistance to plucking structure is a cage structure body, and the end of cage structure body is hemispherical.
17. a kind of stiffening pile with the slip casting bag according to claim 6 is characterized in that the resistance to plucking structure is form anchor.
18. a kind of stiffening pile with the slip casting bag according to claim 17 is characterized in that described form anchor end is hemispherical.
19. a kind of stiffening pile with the slip casting bag according to claim 1, is characterized in that, on described slip casting bag, is provided with the hole of passing for drilling rod and/or reinforcing body.
CN201310323429.XA 2013-07-29 2013-07-29 Stiffening pile with grouting bags CN103397630B (en)

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CN103397630B CN103397630B (en) 2015-07-22

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108166535A (en) * 2018-01-02 2018-06-15 中亿丰建设集团股份有限公司 A kind of construction method of bellows leak stopping

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3099911A (en) * 1958-10-08 1963-08-06 Lee A Turzillo Means of grouting or concreting
US3717966A (en) * 1970-01-30 1973-02-27 Stump Bohr Ag Anchor tie construction and method of setting an anchor tie in the ground
JPH08158363A (en) * 1994-12-02 1996-06-18 Moriya Koki Kk Structure of anchor tendon for permanent anchor, and pressure condition-confirming method therefor
JP2002129555A (en) * 2000-10-19 2002-05-09 Geo Front:Kk Anchor installation method
KR100766450B1 (en) * 2006-08-10 2007-10-17 (주)신화소일테크 The anchor construction method in soft ground of gaving used the foundation fixing anchor and this shich consisted of fixing supporter
CN101949152A (en) * 2010-09-28 2011-01-19 张继红 Compound anchor rod and construction method thereof
JP4696556B2 (en) * 2005-01-04 2011-06-08 株式会社大林組 Natural ground reinforcement earth construction method and natural ground reinforcement soil structure
CN102561337A (en) * 2012-02-09 2012-07-11 上海强劲地基工程股份有限公司 Sand-filling stiffening pile
JP2012241386A (en) * 2011-05-18 2012-12-10 Ohbayashi Corp Rock mass reinforcement and injection method of grout material
CN203361141U (en) * 2013-07-29 2013-12-25 上海强劲地基工程股份有限公司 Reinforced pile with grouting bag

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3099911A (en) * 1958-10-08 1963-08-06 Lee A Turzillo Means of grouting or concreting
US3717966A (en) * 1970-01-30 1973-02-27 Stump Bohr Ag Anchor tie construction and method of setting an anchor tie in the ground
JPH08158363A (en) * 1994-12-02 1996-06-18 Moriya Koki Kk Structure of anchor tendon for permanent anchor, and pressure condition-confirming method therefor
JP2002129555A (en) * 2000-10-19 2002-05-09 Geo Front:Kk Anchor installation method
JP4696556B2 (en) * 2005-01-04 2011-06-08 株式会社大林組 Natural ground reinforcement earth construction method and natural ground reinforcement soil structure
KR100766450B1 (en) * 2006-08-10 2007-10-17 (주)신화소일테크 The anchor construction method in soft ground of gaving used the foundation fixing anchor and this shich consisted of fixing supporter
CN101949152A (en) * 2010-09-28 2011-01-19 张继红 Compound anchor rod and construction method thereof
JP2012241386A (en) * 2011-05-18 2012-12-10 Ohbayashi Corp Rock mass reinforcement and injection method of grout material
CN102561337A (en) * 2012-02-09 2012-07-11 上海强劲地基工程股份有限公司 Sand-filling stiffening pile
CN203361141U (en) * 2013-07-29 2013-12-25 上海强劲地基工程股份有限公司 Reinforced pile with grouting bag

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108166535A (en) * 2018-01-02 2018-06-15 中亿丰建设集团股份有限公司 A kind of construction method of bellows leak stopping

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