CN102797262A - Construction method for cast-in-situ triangular composite foundation pile and special hole former therefor - Google Patents
Construction method for cast-in-situ triangular composite foundation pile and special hole former therefor Download PDFInfo
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- CN102797262A CN102797262A CN2011101395014A CN201110139501A CN102797262A CN 102797262 A CN102797262 A CN 102797262A CN 2011101395014 A CN2011101395014 A CN 2011101395014A CN 201110139501 A CN201110139501 A CN 201110139501A CN 102797262 A CN102797262 A CN 102797262A
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Abstract
The invention discloses a construction method for rapidly finishing a cast-in-situ concrete triangular large composite foundation pile on a soft soil foundation and a special hole former therefor. The special hole former comprises a medium-high frequency vibratory hammer, a special fixture device, a circular outer steel pile casing, a triangular inner steel pile casing, a triangular reinforced concrete seal pile toe, a triangular steel valve pile toe and a steel hinge joint. According to the scheme of the invention, the composite foundation pile treated on the soft soil foundation can improve the single-pile bearing capacity and improve the whole sideslip displacement resistance of the composite foundation. Due to the implementation of the scheme, the construction cost can be reduced by over 20%, the volume of excavated soil in construction can be reduced by 50%, pollution caused by secondary dredging and transportation is avoided, and the construction method can be adapted to the construction on different soft and weak soil layers and complex fields.
Description
Technical field
The present invention relates to a kind of soft foundation that is applicable to and accomplish the job practices and the special-purpose perforating device of the large-scale compound foundation pile of cast-in-situ concrete triangle fast.This scheme is applicable to the construction of the compound foundation pile of all kinds of deep weak soil, backfill.Can be widely used in the treatment of soft foundation and the processing of the soft foundation in other civil construction of sea wall composite pile foundation, port and pier reclamation by pumping filling.
Background technology
At present; In the pile foundation construction of handling the deep weak soil of all kinds of harbours, harbour, water conservancy, airport, railway and building, backfill, the overwhelming majority still adopts traditional construction technology, promptly earlier squeezes into or be pressed into large diameter single steel casing in the soil; Fetch earth through punching, excavation or auger again; This job practices need to be discharged a large amount of earth in pore forming process, not only engineering quantity big, bring pollution to site environment, but also in secondary desilting transportation, stained surrounding environment once more.Simultaneously, when the cast pile body, need use a large amount of concrete, not only consuming time taking a lot of work also strengthened engineering cost.
In order to overcome the deficiency that above-mentioned conventional method exists in work progress, reduce construction cost, accelerating construction progress avoids secondary desilting transportation to pollute, and adapts to the construction demand in different soil and place, just becomes the technical problem that the patent art scheme will solve.
Summary of the invention
To the problems referred to above, the present invention aims to provide a kind of soft foundation that is applicable to and accomplishes the job practices and the special-purpose perforating device of the large-scale compound foundation pile of cast-in-situ concrete triangle fast.
For realizing this technical purpose, scheme of the present invention is:
(1) a kind of job practices of cast-in-place triangle compound foundation pile comprises the steps:
A, at first according to the setting-out at the scene of treatment of soft foundation Pile Foundations Design working drawing, confirm that pile foundation center and burying respectively puts triangle reinforcing bar concrete solid pile point.
It is in place that b, the portable stake of startup machine drive medium-high frequency vibrating hammer and special hydraulic clamp system move on to construction location.Open medium-high frequency hydraulic pressure (electronic) vibrating hammer
1, through the flange connecting dish
2With special fixture chute crossbeam
3, the moving telescopic chuck
4, clamp outer steel casing
6Top and interior steel casing
7The top also makes interior steel casing
7The bottom build-in is in triangle reinforcing bar concrete solid pile point
9Water jacket place, upper end
8, begin to execute to shake to exert pressure inside and outside steel casing is shaken with the sharp association of stake simultaneously fast sink to underground soil layer design elevation place, unclamp clamping fixture head
4, remove hydraulic pressure (electronic) vibrating hammer
1
C, after accomplishing foregoing invention content (1), a b, step process, the reinforcing cage of having made steel casing in the triangle from top to bottom
7Inner chamber in hang, after the reinforcing cage localization examination is accomplished, from interior steel casing
7The place is opened wide in the inner chamber upper end
5Fluid concrete.After treating that concrete pouring is intact, restart hydraulic pressure (electronic) vibrating hammer
1, through the flange connecting dish
2And special fixture
3And chuck
4, steel casing top is executed and is shaken inside and outside clamping, and elder generation checks that the concrete that has watered in the chamber is till supplying design elevation after vibrating for 5 seconds.Promote simultaneously inside and outside steel casing until going out ground at a slow speed, and next pile positioning construction of dislocation.
(2) as this patent construction technology, its characteristic also comprises: steel casing in the triangle
7The hinged triangle steel flapper pile tip in bottom
13Method, its construction sequence is following:
A, according to the setting-out at the scene of treatment of soft foundation Pile Foundations Design working drawing, confirm the pile foundation center and bury respectively and put telltale mark.
It is in place that b, the portable stake of startup machine drive medium-high frequency vibrating hammer and special hydraulic clamp system move on to construction location.Open medium-high frequency hydraulic pressure (electronic) vibrating hammer
1, through the flange connecting dish
2With special fixture chute crossbeam
3, the moving telescopic chuck
4, clamp outer steel casing
6Top and interior steel casing
7The top also makes steel casing in the triangle
7The triangle steel flapper pile tip that the bottom is hinged
13Closure begins to execute to shake to exert pressure inside and outside steel casing is shaken with the sharp association of stake fast sink to underground soil layer design elevation place, unclamp clamping fixture head
4, remove hydraulic pressure (electronic) vibrating hammer
1
C, after accomplishing foregoing invention content (2), a b, step process, still construct by foregoing invention content (1), item c, step process.
(3) as this patent construction technology, its characteristic also comprises: cast-in-place plain concrete triangle compound foundation pile method.Its construction sequence is: remove outside the install reinforcing cage step process, other construction sequence is still constructed by each step process in foregoing invention content (1), item and summary of the invention (2), the item.
(4) a kind of special-purpose perforating device that is used to realize content of the present invention (1), (2), (3) said job practices comprises medium-high frequency hydraulic pressure (electronic) vibrating hammer
1, flange
2, special fixture chute crossbeam
3, the moving telescopic chuck
4, circular outer steel casing
6, steel casing in the triangle
7With triangle reinforcing bar concrete sealing solid pile point
9Or triangle steel flapper pile tip
13Form with steel articulated link chain joint 14.Said medium-high frequency hydraulic pressure (electronic) vibrating hammer
1Device is through the flange connecting dish
2With special fixture chute crossbeam
3, the moving telescopic chuck
4With steel casing in the triangle
7, circular outer steel casing
6The upper end position clamping, exert pressure and extricate oneself from a predicament and brace oneself up to action, unclamp connection.Steel casing in the said triangle
7The upper end open wide the place
5Be set to concrete and pour into the place.
As this patent construction technology, the soft soil that said stake point is arranged when sinking to underground soil layer is most of along interior steel casing
7With outer steel casing
6Between the cavity slippage casting of boosting
10, the stake point place soft soil of remainder is pressed to inter-pile soil
12In.And compacted undisturbed soil.Steel casing outside
6Under the protection, the soil body construction stress between stake and stake can fully discharge.
As this patent construction technology, said stake nose part can adopt steel casing in the triangle respectively
7The bottom build-in is in the solid sealing stake of triangle reinforcing bar concrete point
9Water jacket place, upper end
8Or by steel articulated link chain joint
14Articulated triangle steel flapper pile tip
13Scheme.
As this patent construction technology, after completion is built in the stake of said cast-in-situ concrete triangle, start medium-high frequency hydraulic pressure (electronic) vibrating hammer
1, can be earlier steel casing in the triangle
7The ground of extricating oneself from a predicament and brace oneself up to action at a slow speed, treat that inner chamber body is replenished sufficient concrete after, again outer steel casing
6The ground of extricating oneself from a predicament and brace oneself up to action at a slow speed.
The present invention program is as accomplish the large-scale compound foundation pile of cast-in-situ concrete triangle in the Soft Ground fast, and decapacitation improves the whole anti-side sliding displacement capacity that single pile bearing capacity also can be strengthened composite foundation outward.This scheme can reduce construction cost more than 20%, reduce construction be unearthed amount 50%, avoid secondary desilting transportation pollution, adapt to the different soft layers and the construction of complex site.
Description of drawings
Fig. 1 is a complete composite technology principle schematic of the present invention.
Fig. 2 is a triangle cast-in-situ concrete compound foundation pile floor map of the present invention.
Fig. 3 is a special-purpose triangle reinforcing bar concrete sealing solid pile point sketch map of the present invention.
Fig. 4 is special-purpose triangle steel flapper pile tip of the present invention and the hinged link sketch map of steel.
Its description of reference numerals: medium-high frequency hydraulic pressure (electronic) vibrating hammer
1, flange
2, special fixture chute crossbeam
3, the moving telescopic chuck
4, concrete pours into the place
5, circular outer steel casing
6, steel casing in the triangle
7, triangle reinforcing bar concrete sealing solid pile point water jacket
8, triangle reinforcing bar concrete sealing solid pile point
9, the cavity soil discharge channel between inside and outside steel casing
10, the triangle reinforcing bar concrete stake after building
11, the stake point soft soil that shakes and arranged when sinking to underground soil layer
12, the triangle steel flapper pile tip
13, the steel head that is articulated and connected
14
The specific embodiment
Below in conjunction with accompanying drawing and practical implementation technology of the present invention is explained further details:
One, like accompanying drawing 1,2,3, shown in 4, technology of the present invention provides a kind of through having medium-high frequency hydraulic pressure (electronic) vibrating hammer
1, flange
2, special fixture chute crossbeam
3, the moving telescopic chuck
4The special fixture association that equipment is formed is simultaneously to the outer steel casing of circle
6With steel casing in the triangle
7Upper end position clamping makes steel casing in the triangle
7The bottom build-in is in triangle reinforcing bar concrete solid pile point
9Water jacket place, upper end
8, start medium-high frequency hydraulic pressure (electronic) vibrating hammer
1The enforcement pressure of shaking makes circular outer steel casing
6, steel casing in the triangle
7With triangle reinforcing bar concrete solid pile point
9Sunk to underground soil layer by shaking simultaneously and the operation construction technology of the pipe of extricating oneself from a predicament and brace oneself up to action at a slow speed.
Two, at medium-high frequency hydraulic pressure (electronic) vibrating hammer
1, flange
2, special fixture chute crossbeam
3, moving telescopic chuck 4
AltogetherUnder the application of force, make circular outer steel casing
6With steel casing in the triangle
7With triangle reinforcing bar concrete solid pile point
9Fast synergistic acts on to make and forms triangular cavity in the soil body, and the soft soil major part that the stake point is arranged when sinking to underground soil layer is along interior steel casing
7With outward
6The slippage casting of boosting of cavity between the steel casing
10, the stake point place soft soil of remainder is pressed to inter-pile soil
12In, and compacted undisturbed soil.Steel casing outside
6Under the protection, stake can fully discharge with the construction stress of inter-pile soil, guarantees pile quality.
Three, before concreting, must hang in steel casing in the triangle to reinforcing cage from top to bottom earlier
7After in the cavity, again from interior steel casing
7The upper end concrete spouting is gone into the place
5Concreting.This kind construction technology can be passed through interior steel casing easily
7The concrete situation of having built is observed in upper end understanding directly perceived, is convenient to effectively management construction.
Four, if pile crown adopts the triangle steel flapper pile tip
13, and through steel articulated link chain joint
14With steel casing in the triangle
7The bottom is hinged, and when practice of construction, one, two, three step process still following in the above-mentioned specific embodiment is constructed.
Five, the special-purpose perforating device in the present embodiment is mainly three parts composition: first is for having medium-high frequency hydraulic pressure (electronic) vibrating hammer
1, flange
2With special fixture chute crossbeam
3, the moving telescopic chuck
4Association's equipment of forming; The outer steel casing of second portion circle
6With steel casing in the triangle
7Form; Third part is a triangle reinforcing bar concrete solid pile point
9Or be triangle steel flap valve pile crown
13And steel articulated link chain joint
14Form.
What the present invention's technology adopted is medium-high frequency hydraulic pressure (electronic) vibrating hammer
1, flange
2, special fixture chute crossbeam
3, the moving telescopic chuck
4The dedicated hydraulic vibration tong system that forms, convenient construction in congenial company or do congenial work under portable stake machine cooperates is really accomplished energy-saving and emission-reduction, avoids secondary desilting transportation and is polluted, shortens construction period, efficient construction, ensures safety and guarantees the quality.Under the urban architecture environment of special complicacy, bringing into play special efficacy.
Practical implementation method and result
1) puts the large-scale compound foundation pile type of cast-in-place mixed earth triangle of reinforcing cage
A, elder generation move on to construction location by portable stake machine drive medium-high frequency vibrating hammer and special hydraulic clamp system.Start medium-high frequency hydraulic pressure (electronic) vibrating hammer
1, through the flange connecting dish
2With special fixture chute crossbeam
3, the moving telescopic chuck
4, clamp outer steel casing simultaneously
6Top and interior steel casing
7The top also makes interior steel casing
7The end build-in is in triangle reinforcing bar concrete solid pile point
9The upper end water jacket
8Executing behind the place shakes exerts pressure, and makes it quick being shaken simultaneously of association and sinks to design soil layer absolute altitude place, unclamps clamping fixture head
4, remove hydraulic pressure (electronic) vibrating hammer
1
B, accomplish above-mentioned practical implementation method and result 1) behind a, step process, hang onto interior steel casing to the reinforcing cage of having made
7In the inner chamber, after the reinforcing cage localization examination is accomplished, from interior steel casing
7Inner chamber open upper end place
5Fluid concrete.After treating that concrete pouring is intact, restart hydraulic pressure (electronic) vibrating hammer
1, through the flange connecting dish
2And special fixture
3And chuck
4, steel casing top is executed and is shaken inside and outside clamping, and elder generation checks that the concrete that has watered in the chamber is till supplying design elevation after vibrating for 5 seconds.Pull out simultaneously inside and outside steel casing slowly until going out ground, and move on to next working procedure.
2) the large-scale compound foundation pile type of cast-in-place plain concrete triangle
Accomplish above-mentioned practical implementation method and result 1) behind the item a, step process, remove outside the install reinforcing cage step process, directly from interior steel casing
7Inner chamber open upper end place
5Fluid concrete.After treating that concrete pouring is intact, restart hydraulic pressure (electronic) vibrating hammer
1, through the flange connecting dish
2And special fixture
3And chuck
4, steel casing top is executed and is shaken inside and outside clamping, and elder generation checks that the concrete that has watered in the chamber is till supplying design elevation after vibrating for 5 seconds.Pull out simultaneously inside and outside steel casing slowly until going out ground, and move on to next working procedure.
The above is merely preferable case study on implementation in the present invention technology constructure scheme, every trickle modification of above case study on implementation being done according to technology of the present invention of any essence, is equal to replacement and improves, and all should be included within the protection domain of technical scheme of the present invention.
Claims (8)
1. the job practices of a cast-in-place triangle compound foundation pile comprises the steps:
A, confirm that pile foundation center and burying respectively puts triangle reinforcing bar concrete solid pile point.
B, the portable stake of startup machine are opened medium-high frequency hydraulic pressure (electronic) vibrating hammer
1, through the flange connecting dish
2With special fixture chute crossbeam
3, the moving telescopic chuck
4, clamp outer steel casing
6Top and interior steel casing
7The top also makes interior steel casing
7The bottom build-in is in triangle reinforcing bar concrete solid pile point
9Water jacket place, upper end
8, begin to execute to shake to exert pressure inside and outside steel casing is shaken with the sharp association of stake simultaneously fast sink to underground soil layer design elevation place, unclamp clamping fixture head
4, remove hydraulic pressure (electronic) vibrating hammer
1
C, accomplish that aforesaid right requires 1, behind a, b, step process, the reinforcing cage of having made steel casing in the triangle from top to bottom
7Inner chamber in hang.From interior steel casing
7The place is opened wide in the inner chamber upper end
5Fluid concrete.Restart hydraulic pressure (electronic) vibrating hammer
1, through the flange connecting dish
2And special fixture
3And chuck
4, steel casing top is executed and is shaken inside and outside clamping, and elder generation checks that the concrete that has watered in the chamber is till supplying design elevation after vibrating for 5 seconds.Promote inside and outside steel casing until going out ground simultaneously at a slow speed.
2. according to the job practices of claim 1, described cast-in-place triangle compound foundation pile, it is characterized in that: also comprise steel casing in the triangle
7The hinged triangle steel flapper pile tip in bottom
13Method, its construction sequence is following:
A, confirm the pile foundation center and bury respectively and put telltale mark.
B, the portable stake of startup machine are opened medium-high frequency hydraulic pressure (electronic) vibrating hammer
1, through the flange connecting dish
2With special fixture chute crossbeam
3, the moving telescopic chuck
4, clamp outer steel casing
6Top and interior steel casing
7The top also makes steel casing in the triangle
7The triangle steel flapper pile tip that the bottom is hinged
13Closure begins to execute to shake to exert pressure inside and outside steel casing is shaken with the sharp association of stake fast sink to underground soil layer design elevation place, unclamp clamping fixture head
4, remove hydraulic pressure (electronic) vibrating hammer
1
C, accomplish that aforesaid right requires 2, behind a, b, step process, still constructing by aforesaid right requirements 1, item c, step process.
3. according to the job practices of claim 1, described cast-in-place triangle compound foundation pile, it is characterized in that: also comprise cast-in-place plain concrete triangle compound foundation pile method.Its construction sequence is: remove outside the install reinforcing cage step process, other construction sequence still by aforesaid right requirement 1 and claim 2, in each step process construct.
4. a special-purpose perforating device that is used to realize claim 1,2,3, said job practices comprises medium-high frequency hydraulic pressure (electronic) vibrating hammer
1, flange
2, special fixture chute crossbeam
3, the moving telescopic chuck
4, circular outer steel casing
6, steel casing in the triangle
7With triangle reinforcing bar concrete sealing solid pile point
9Or triangle steel flapper pile tip
13With steel articulated link chain joint
14Form.Said medium-high frequency hydraulic pressure (electronic) vibrating hammer
1Device is through the flange connecting dish
2With special fixture chute crossbeam
3, the moving telescopic chuck
4With steel casing in the triangle
7, circular outer steel casing
6The upper end position clamping, exert pressure and extricate oneself from a predicament and brace oneself up to action, unclamp connection.Steel casing in the said triangle
7The upper end open wide the place
5Be set to concrete and pour into the place.
5. according to claim 4, described perforating device, it is characterized in that: in the counterbore process, the soft soil major part that said stake point is arranged when sinking to underground soil layer is along interior steel casing
7With outer steel casing
6Between the cavity slippage casting of boosting
10, the stake point place soft soil of remainder is pressed to inter-pile soil
12In, and compacted undisturbed soil.Steel casing outside
6Under the protection, the soil body construction stress between stake and stake can fully discharge, and guarantees pile quality.
6. according to claim 4, described perforating device, it is characterized in that: said triangle in situ concrete pile starts medium-high frequency hydraulic pressure (electronic) vibrating hammer after building completion
1Shi Zhen executes and pulls out, simultaneously steel casing in the triangle
7With outer steel casing
6The ground of extricating oneself from a predicament and brace oneself up to action at a slow speed.
7. according to claim 4, described perforating device, it is characterized in that: said triangle in situ concrete pile starts medium-high frequency hydraulic pressure (electronic) vibrating hammer after building completion
1Shi Zhen executes and pulls out, also can be earlier steel casing in the triangle
7The ground of extricating oneself from a predicament and brace oneself up to action at a slow speed, treat that inner chamber body is replenished sufficient concrete after, again outer steel casing
6The ground of extricating oneself from a predicament and brace oneself up to action at a slow speed.
8. according to claim 4, described perforating device, it is characterized in that: said stake position, tip is adopted the solid sealing stake of triangle reinforcing bar concrete point respectively
9Or triangle steel flapper pile tip
13Scheme.
Priority Applications (1)
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CN201110139501.4A CN102797262B (en) | 2011-05-26 | 2011-05-26 | The construction treating methods of cast-in-situ triangular compound foundation pile |
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CN201110139501.4A CN102797262B (en) | 2011-05-26 | 2011-05-26 | The construction treating methods of cast-in-situ triangular compound foundation pile |
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CN102797262A true CN102797262A (en) | 2012-11-28 |
CN102797262B CN102797262B (en) | 2016-08-03 |
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CN103061353A (en) * | 2013-01-05 | 2013-04-24 | 台山市宁华电力设计有限公司 | Windproof reinforced concrete rod sleeve base |
CN105019432A (en) * | 2013-10-24 | 2015-11-04 | 叶香雄 | Construction method for expanded end bearing pile |
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CN201826302U (en) * | 2010-08-01 | 2011-05-11 | 常雷 | Boring device for large-diameter cast-in-situ thin-walled concrete composite pile |
CN202323934U (en) * | 2011-05-26 | 2012-07-11 | 常雷 | Hole forming device for cast-in-situ triangular composite foundation pile |
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CN1462827A (en) * | 2003-06-21 | 2003-12-24 | 阎瑞明 | Construction for making piles and tools |
JP2006219850A (en) * | 2005-02-09 | 2006-08-24 | Yoshitada Miyake | Construction method for field-created pile |
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CN103061353A (en) * | 2013-01-05 | 2013-04-24 | 台山市宁华电力设计有限公司 | Windproof reinforced concrete rod sleeve base |
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Effective date of registration: 20210518 Address after: 102308 046, 6th floor, building 2, yard 5, Longxing south 2nd Road, Mentougou District, Beijing Patentee after: Beijing Kaitai Construction Engineering Co.,Ltd. Address before: 518031 1-205, Jinhua xinju, HUAFA South Road, Futian District, Shenzhen City, Guangdong Province Patentee before: Chang Lei |
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