CN102296592A - Construction method of cast-in-situ X-shaped reinforced concrete pile underground continuous wall - Google Patents

Construction method of cast-in-situ X-shaped reinforced concrete pile underground continuous wall Download PDF

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Publication number
CN102296592A
CN102296592A CN2011101751767A CN201110175176A CN102296592A CN 102296592 A CN102296592 A CN 102296592A CN 2011101751767 A CN2011101751767 A CN 2011101751767A CN 201110175176 A CN201110175176 A CN 201110175176A CN 102296592 A CN102296592 A CN 102296592A
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China
Prior art keywords
pile
mould
shaped
situ
cast
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Pending
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CN2011101751767A
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Chinese (zh)
Inventor
丁选明
孔纲强
刘汉龙
张敏霞
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Nanjing Hehai Technology Co Ltd
Hohai University HHU
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Nanjing Hehai Technology Co Ltd
Hohai University HHU
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Priority to CN2011101751767A priority Critical patent/CN102296592A/en
Publication of CN102296592A publication Critical patent/CN102296592A/en
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Abstract

The invention discloses a construction method of a cast-in-situ X-shaped reinforced concrete pile underground continuous wall. The method comprises the following steps of: driving a special pile die which is provided with a male rabbet and a female rabbet on two symmetrical straight line sides respectively and has an X-shaped profile into a foundation by a designed depth under the assistance of a valve pile tip or a prefabricated pile shoe in a vibrating immersed pipe mode, connecting through the male rabbet and the female rabbet, driving a second pile die into one side of the first pile die, putting circular reinforcing cages into the two pile dies in sequence, and pouring concrete; pulling the first pile die out, driving the first pile die inside along the other side edge of the second pile die, putting a reinforcing cage, pouring the concrete, pulling the pile die out, and repeating the steps till all pile bodies are constructed; and pouring continuous beams on the tops of the pile bodies to form the cast-in-situ X-shaped reinforced concrete pile underground continuous wall. By adopting the construction method, the unit pile body horizontal bending resistance stiffness and the unit material intensity utilization ratio are increased, the impermeability is ensured, and the construction cost is lowered; and moreover, the construction method has the advantages of simple construction process, high operability, convenience for quality control and high stability.

Description

Cast-in-situ X-shaped concrete pile construction of continuous concrete wall method
Technical field
The invention belongs to Soft Ground and deep foundation ditch maintenance technology field, particularly a kind of cast-in-situ X-shaped concrete pile construction of continuous concrete wall method.
Background technology
Diaphragm Wall is applied in the engineering fields such as pit maintenance soil, levee revetment and harbour widely.The major function of general diaphragm wall comprises that level is to two contents such as support and antiseepages.How a kind of level of exploitation is one of long-term important topic of paying close attention to of researcher to bearing capacity height, Diaphragm Wall that barrier performance is good under the high prerequisite of energy-conserving and environment-protective, efficiency of construction.
Before the present invention, Chinese utility model patent " disjunctor the stake " (patent No.: ZL200720043694.2) disclose a kind of typical circular cross section castinplace pile construction of continuous concrete wall step.Because be subjected to the restriction of factors such as a type section form, the horizontal bending rigidity of typical circular cross section stake unit concrete is relatively low; And in the common construction of diaphragm wall process, often need links such as mud off, cause environment pollution easily.The cement mixing pile impervious wall, the efficiency of construction height, but often exist owing to stir the defectives such as strength of the mixing pile deficiency that factor such as inhomogeneous causes.
Chinese invention patent " the cast-in-situ X-shaped concrete pile construction method " (patent No.: ZL200710020306.3) disclose the vibration head bottom and connected cover plate; cover plate connects X-shaped steel sleeve pipe; X-shaped steel sleeve pipe lower end connects the shoe of prefabricated X-shaped steel concrete; it is downward that the Vibration on Start-up head drives X-shaped steel sleeve pipe downwards; under the protection of prefabricated X-shaped shoe, squeeze in the ground; concrete injects in X-shaped steel sleeve pipe cavity; the vibration head vibration is upwards extracted ground with X-shaped steel sleeve pipe; the shoe of X-shaped steel concrete is stayed in the ground, forms cast-in-situ X-shaped concrete pile.This method provides a kind of horizontal bearing capacity height, pile base construction method that concrete amount is few, but generally uses as single pile or composite foundation, can not be as the diaphragm wall antiseepage.
Summary of the invention
The objective of the invention is to overcome above-mentioned defective, take all factors into consideration Diaphragm Wall in the requirement of level to enabling capabilities and barrier performance two broad aspect, comprehensive stake side odd-shaped cross section form is to improving the effect of unit concrete material side direction bending rigidity, invent a kind of energy-conserving and environment-protective, efficiency of construction height, the unit concrete horizontal is to bearing capacity height, cast-in-situ X-shaped concrete pile Diaphragm Wall that barrier performance is good.
A kind of cast-in-situ X-shaped concrete pile diaphragm wall, adopt the vibration sinking tube mode that symmetrical two straight lines are had " public affairs " respectively, the special outline of " mother " tongue and groove is that the stake mould of X-shaped is squeezed in the projected depth ground under flapper pile tip or prefabricated shoe collaborative, by " public affairs ", " mother " tongue and groove connects, squeeze into the 2nd pile mould in a side of the 1st pile mould, in two stake moulds, transfer circular reinforcing cage successively, fluid concrete, extract the 1st pile mould then while vibrating, and squeeze into (being numbered the 3rd pile mould) along another side of the 2nd pile mould, in the 3rd immersed tube, put reinforcing cage, fluid concrete, extract the 2nd pile mould and squeeze into (order 4) on the right side of label 3, and the like finish all piles body construction; After treating the pile body initial set, build continuous beam at the pile body top and finally form " cast-in-situ X-shaped concrete pile diaphragm wall ".Its major technique is characterised in that X-shaped stake mould has " public affairs ", " mother " tongue and groove respectively on symmetrical two straight lines, builds continuous beam to form whole diaphragm wall at the X-shaped steel concrete combination pile body top that forms.
Vibro driver used in the present invention top is provided with the stake mould that vibration head, flange and outline are X-shaped.
Described X-shaped stake mould has " public affairs ", " mother " tongue and groove respectively on symmetrical two straight lines, stake mould bottom connects flapper-type stake point or prefabricated shoe.
Described X-shaped pile die has higher rigidity and intensity, the top have can anchoring the circular steel plate of interior sky, arranged outside can be observed the sign of the pile sinking degree of depth.
Long can the reaching about 25 m of the whole stake of described X-shaped stake mould, stake mould outsourcing circular diameter are between 0.5 ~ 1.2 m, and stake mould open arc angle is between 90 ° ~ 130 °.
Described cast-in-situ X-shaped concrete pile construction of continuous concrete wall method, its major technique step is:
(1) unwrapping wire is measured in levelling of the land, and the stake position is determined;
(2) an X-shaped stake mould and a stake machine are moved on to this position after precast pile tip being put into stake position, perhaps will be in place in the pile driving position of appointment with special the 1st X-shaped stake mould of flapper pile tip, guarantee that crane gear is steady, leading truck drift angle perpendicular to the ground is not more than 1.5 %, the pore-forming center is not more than 60 mm with the design pile position deviation;
(3) Vibration on Start-up machine is sink to projected depth with the 1st pile mould, and every sinking 2.0 m stay 1 min that shakes;
(4) mobile pile driver is located the 2nd pile mould, and " public affairs ", " mother " tongue and groove of align the 2nd pile mould in place and the 1st pile mould;
(5) Vibration on Start-up machine is sink to projected depth with the 2nd pile mould, and every sinking 2.0 m stay 1 min that shakes;
(6) in the 1st pile mould and the 2nd pile mould, transfer reinforcing cage successively;
(7) concreting in the 1st pile mould and the 2nd pile mould successively;
(8) Vibration on Start-up is pulled out the 1st pile mould, on to pull out speed be 0.6-1.5 m/min, and every tube drawing 1 m stays 1 min that shakes;
(9) mobile pile driver moves to the opposite side of the 2nd pile mould with the 1st pile mould, is numbered the 3rd pile mould, " public affairs ", " mother " tongue and groove of align the 3rd pile mould in place and the 2nd pile mould;
(10) Vibration on Start-up machine is sink to projected depth with the 3rd pile mould, and every sinking 2.0 m stay 1 min that shakes;
(11) in the 3rd pile mould, transfer reinforcing cage, concreting;
(12) Vibration on Start-up is pulled out the 2nd pile mould, on to pull out speed be 0.6-1.5 m/min, and every tube drawing 1 m stays 1 min that shakes;
(13) mobile pile driver moves to the opposite side of the 3rd pile mould with the 2nd pile mould, is numbered the 4th pile mould, " public affairs ", " mother " tongue and groove of align the 4th pile mould in place and the 3rd pile mould;
(14) repeat (9) to (13) operation, finish all cast-in-situ X-shaped concrete pile body constructions;
(15) treat that the cast-in-situ X-shaped concrete pile body reaches initial set after, at the integrated poured concrete in pile body top to form continuous beam; Finally finish the cast-in-situ X-shaped concrete pile construction of continuous concrete wall.
Advantage of the present invention is with effect: compare with diaphragm wall, this new solution can guaranteed the diaphragm wall integral level under the prerequisite of bearing capacity performance, improves horizontal bending rigidity of unit pile body and unit materials rate of utilization of strength, reduces construction costs; The anti-permeability performance of diaphragm wall has been guaranteed in the utilization that combines of " public affairs ", " mother " tongue and groove and X-shaped stake mould effectively; The whole continuous beam on pile body top when guaranteeing the diaphragm wall globality, improves the bearing capacity performance; And this construction of diaphragm wall technology is simple, workable, is convenient to quality control, and stability is high, impervious good.
Advantage of the present invention and effect also will further describe in the specific embodiment.
Description of drawings:
Fig. 1 is a work progress schematic diagram of the present invention, wherein (1) is for making a call to the 1st pile mould, (2) for making a call to the 2nd pile mould, (3) for successively the 1st, transfer reinforcing cage in the 2 pile moulds, and fluid concrete filler subsequently, (4) pull out the 1st pile mould for vibration, and the opposite side that moves to the 2nd pile mould is squeezed into, be numbered the 3rd pile mould, (5) in the 3rd pile mould, transferring reinforcing cage, the fluid concrete filler, (6) pull out the 2nd pile mould for vibration, and the opposite side that moves to the 3rd pile mould squeezes into, be numbered the 4th pile mould, (7) for to build continuous beam, finally form the cast-in-situ X-shaped concrete pile diaphragm wall on X-shaped pile body top.
Fig. 2 is a construction equipment schematic diagram of the present invention.
Fig. 3 is an X-shaped stake mould top structure schematic diagram of the present invention.
Among the figure: 1 is vibro driver, and 2 is vibration head, and 3 is upper flange plate, and 4 is lower flange, and 5 are band scale stake mould immersed tube, and 6 be flapper pile tip, and 7 is reinforcing cage, and 8 is fixing Luo Xuan, and 9 is " public affairs ", " mother " tongue and groove.
The specific embodiment
Be described in detail the specific embodiment of the present invention below in conjunction with technical scheme and accompanying drawing.Protection scope of the present invention is not limited only to the description of present embodiment.
As shown in Figure 1, 2, 3, vibro driver (1) top is provided with vibration head (2), upper flange plate (3) screw riveted joint vibration head (2), and the special X-shaped stake mould immersed tube (5) by lower flange (4) connecting band scale, band scale X-shaped stake mould immersed tube (5) has higher rigidity and intensity, and immersed tube (5) bottom connects flap valve shoe (6).
During enforcement, smooth place and vibro driver (1) is in place guarantees that crane gear is steady, leading truck drift angle perpendicular to the ground is not more than 1.5 % earlier, and the pore-forming center is not more than 60 mm with the design pile position deviation; Shown in Fig. 3 (1), the Vibration on Start-up machine is sink to projected depth with the 1st pile mould, and every sinking 2.0 m stay 1 min that shakes; Shown in Fig. 3 (2), mobile pile driver is located the 2nd pile mould, and " public affairs ", " mother " tongue and groove of align the 2nd pile mould in place and the 1st pile mould, and the driven pile mould; Shown in Fig. 3 (3), in the 1st pile mould and the 2nd pile mould, transfer reinforcing cage, concreting successively; Shown in Fig. 3 (4), Vibration on Start-up is pulled out the 1st pile mould, on to pull out speed be 0.6-1.5 m/min, and every tube drawing 1 m stays 1 min that shakes; Mobile pile driver moves to the opposite side of the 2nd pile mould with the 1st pile mould, is numbered the 3rd pile mould, " public affairs ", " mother " tongue and groove of align the 3rd pile mould in place and the 2nd pile mould, and driven pile mould; Shown in Fig. 3 (5), in the 3rd pile mould, transfer reinforcing cage, concreting; Shown in Fig. 3 (6), Vibration on Start-up is pulled out the 2nd pile mould, on to pull out speed be 0.6-1.5 m/min, and every tube drawing 1 m stays 1 min that shakes; Mobile pile driver moves to the opposite side of the 3rd pile mould with the 2nd pile mould, is numbered the 4th pile mould, " public affairs ", " mother " tongue and groove of align the 4th pile mould in place and the 3rd pile mould, and driven pile mould; Shown in Fig. 3 (7), repeat above-mentioned process, finish all design cast-in-situ X-shaped concrete pile body constructions; After treating that the cast-in-situ X-shaped concrete pile body reaches initial set, at the integrated poured concrete in pile body top to form continuous beam; Finally finish the cast-in-situ X-shaped concrete pile construction of continuous concrete wall.

Claims (5)

1. cast-in-situ X-shaped concrete pile construction of continuous concrete wall method comprises following technical step:
(1) an X-shaped stake mould and a stake machine are moved on to this position after precast pile tip being put into stake position, perhaps will be in place in the pile driving position of appointment with special the 1st X-shaped stake mould of flapper pile tip;
(2) Vibration on Start-up machine is sink to projected depth with the 1st pile mould;
(3) mobile pile driver is located the 2nd pile mould, and " public affairs ", " mother " tongue and groove of align the 2nd pile mould in place and the 1st pile mould;
(4) Vibration on Start-up machine is sink to projected depth with the 2nd pile mould;
(5) in the 1st pile mould and the 2nd pile mould, transfer reinforcing cage successively;
(6) concreting in the 1st pile mould and the 2nd pile mould successively;
(7) Vibration on Start-up machine is extracted the 1st pile mould;
(8) mobile pile driver moves to the opposite side of the 2nd pile mould with the 1st pile mould, is numbered the 3rd pile mould, " public affairs ", " mother " tongue and groove of align the 3rd pile mould in place and the 2nd pile mould;
(9) Vibration on Start-up machine is sink to projected depth with the 3rd pile mould;
(10) in the 3rd pile mould, transfer reinforcing cage, concreting;
(11) Vibration on Start-up machine is extracted the 2nd pile mould;
(12) mobile pile driver moves to the opposite side of the 3rd pile mould with the 2nd pile mould, is numbered the 4th pile mould, " public affairs ", " mother " tongue and groove of align the 4th pile mould in place and the 3rd pile mould;
(13) repeat (9) to (12) operation, finish all cast-in-situ X-shaped concrete pile body constructions;
(14) treat that the cast-in-situ X-shaped concrete pile body reaches initial set after, at the integrated poured concrete in pile body top to form continuous beam; Finally finish the cast-in-situ X-shaped concrete pile construction of continuous concrete wall.
2. cast-in-situ X-shaped concrete pile construction of continuous concrete wall method according to claim 1, its technical characterictic are that employed vibro driver top is provided with the stake mould that vibration head, flange and outline are X-shaped.
3. cast-in-situ X-shaped concrete pile construction of continuous concrete wall method according to claim 1, its technical characterictic are that X-shaped stake mould has " public affairs ", " mother " tongue and groove respectively on symmetrical two straight lines, and stake mould bottom connects flapper-type stake point or prefabricated shoe.
4. cast-in-situ X-shaped concrete pile construction of continuous concrete wall method according to claim 1, its technical characterictic be X-shaped stake mould top have can anchoring the circular steel plate lower flange of interior sky, arranged outside can be observed the sign of the pile sinking degree of depth.
5. cast-in-situ X-shaped concrete pile construction of continuous concrete wall method according to claim 1, its technical characterictic are long can the reaching about 25 m of whole stake, and stake mould outsourcing circular diameter is between 0.5 ~ 1.2 m, and stake mould open arc angle is between 90 ° ~ 130 °.
CN2011101751767A 2011-06-27 2011-06-27 Construction method of cast-in-situ X-shaped reinforced concrete pile underground continuous wall Pending CN102296592A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103061356A (en) * 2013-02-14 2013-04-24 刘玉秋 X-type sequence pile retaining wall manufacturing equipment
CN104790390A (en) * 2015-05-06 2015-07-22 河海大学 Pile mould of cast-in-place X-shaped large-diameter hollow orientated steel fiber reinforced concrete and construction method
CN105937218A (en) * 2016-04-27 2016-09-14 中国建筑第五工程局有限公司 Construction method of underground diaphragm wall
CN107268625A (en) * 2017-07-02 2017-10-20 中亿丰建设集团股份有限公司 A kind of pile sinking construction method of deep jackstone badness geological province

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1177037A (en) * 1996-09-17 1998-03-25 昆明捷程桩工有限责任公司 Art for construction of continuous bulkheads
CN1322881A (en) * 2001-06-20 2001-11-21 谢庆道 Continuous underground wall constructing method with linked tubular pile and its special linked tubular pile hole former
CN2630318Y (en) * 2003-06-05 2004-08-04 上海市隧道工程轨道交通设计研究院 Steel pipe pile retaining wall structure
CN101021070A (en) * 2007-02-12 2007-08-22 刘汉龙 Cast-in-situ X-shaped concrete pile construction method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1177037A (en) * 1996-09-17 1998-03-25 昆明捷程桩工有限责任公司 Art for construction of continuous bulkheads
CN1322881A (en) * 2001-06-20 2001-11-21 谢庆道 Continuous underground wall constructing method with linked tubular pile and its special linked tubular pile hole former
CN2630318Y (en) * 2003-06-05 2004-08-04 上海市隧道工程轨道交通设计研究院 Steel pipe pile retaining wall structure
CN101021070A (en) * 2007-02-12 2007-08-22 刘汉龙 Cast-in-situ X-shaped concrete pile construction method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103061356A (en) * 2013-02-14 2013-04-24 刘玉秋 X-type sequence pile retaining wall manufacturing equipment
CN103061356B (en) * 2013-02-14 2015-07-01 温州焜伟建设有限公司 X-type sequence pile retaining wall manufacturing equipment
CN104790390A (en) * 2015-05-06 2015-07-22 河海大学 Pile mould of cast-in-place X-shaped large-diameter hollow orientated steel fiber reinforced concrete and construction method
CN104790390B (en) * 2015-05-06 2016-08-17 河海大学 The stake mould of a kind of cast-in-place X-shaped large-diameter hollow orientation steel fiber reinforced concrete stake and construction method
CN105937218A (en) * 2016-04-27 2016-09-14 中国建筑第五工程局有限公司 Construction method of underground diaphragm wall
CN107268625A (en) * 2017-07-02 2017-10-20 中亿丰建设集团股份有限公司 A kind of pile sinking construction method of deep jackstone badness geological province

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Application publication date: 20111228