CN101644050A - Combined steel casing and construction method of waterborne drilled pile based on same - Google Patents

Combined steel casing and construction method of waterborne drilled pile based on same Download PDF

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Publication number
CN101644050A
CN101644050A CN200910063788A CN200910063788A CN101644050A CN 101644050 A CN101644050 A CN 101644050A CN 200910063788 A CN200910063788 A CN 200910063788A CN 200910063788 A CN200910063788 A CN 200910063788A CN 101644050 A CN101644050 A CN 101644050A
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China
Prior art keywords
steel casing
internal layer
casing
layer steel
latch
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Application number
CN200910063788A
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Chinese (zh)
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CN101644050B (en
Inventor
余道胜
王海军
陈军
贺涛
张军
王海滨
李毅
王仁茂
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CCCC Second Harbor Engineering Co
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CCCC Second Harbor Engineering Co
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Priority to CN 200910063788 priority Critical patent/CN101644050B/en
Publication of CN101644050A publication Critical patent/CN101644050A/en
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Publication of CN101644050B publication Critical patent/CN101644050B/en
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Abstract

The invention discloses a combined steel casing and a construction method of a waterborne drilled pile based on the same. The combined steel casing comprises an outer steel casing and an inner steel casing which is arranged in the outer steel casing and comprises a steel casing body; the steel casing wall is provided with an opening contact seam along the axial direction; lockpin devices of the opening contact seam are alternately arranged on the casing wall at both sides of the opening contact seam; the lockpin devices comprise locking sleeves respectively connected with the casing wall of the opening contact seam; and the locking sleeves at both sides are connected by bolts. The drilled pile can be constructed in the inner steel casing capable of being opened and closed for repeated use.After the final setting construction of the drilled pile is finished, the bolts of the lockpin devices of the steel casing capable of being opened and closed for repeated use are drawn out, the innersteel casing capable of being opened and closed is pulled out, and the outer steel casing can also be pulled out. The steel casing can be pulled out for repeated use, greatly reduces the consumptionof the steel casing and decreases the construction cost.

Description

Drilled pile construction method waterborne and combination steel casing thereof based on combination steel casing
Technical field
The invention belongs to foundation construction method, be specifically related to a kind of job practices of drilled pile waterborne.
Background technology
The job practices of present drilled pile waterborne is to establish drilling platform, carry out hole clearly behind the sinking steel casing pore-forming, in the steel casing, carry out pile foundation construction, treat that the pile foundation concrete reaches certain intensity after, need the above part steel casing in stake top is cut off, do not remove with the steel casing of pile body contact portion.The steel casing of this structure can not repeat turnover and use, and the material that reclaims the steel casing is few, and rolled steel dosage is big, the cost height.
Summary of the invention
The object of the present invention is to provide a kind of drilled pile construction method waterborne and combination steel casing thereof, to address the above problem based on combination steel casing.
Realize the drilled pile construction method waterborne based on combination steel casing of one of the object of the invention, it is to set up drilling platform, and the outer steel casing of sinking is behind the clear hole of pore-forming; After sinking internal layer steel casing puts in place in outer steel casing, in internal layer steel casing, carry out pile foundation construction; After treating the final set of pile foundation concrete, extract internal layer steel casing out, extract outer steel casing again out; Described internal layer steel casing comprises steel casing body, and steel casing barrel offers opening contact seam vertically; Establish the latch gear of open seam on the barrel of open seam both sides at interval.
Described extraction internal layer steel casing is the latch gear of opening on the internal layer steel casing, with vibrating hammer internal layer steel casing is extracted.
The described latch gear of opening on the internal layer steel casing is the latch of extracting in the latch gear, and the opening contact seam nature that internal layer steel casing is offered vertically opens.
The following joint of internal layer steel casing is supported internal layer steel casing sinking to making its bottom stretch out outer steel casing bottom.
Realize two the combination steel casing of the object of the invention, it comprises outer steel casing, it is characterized in that it also comprises the internal layer steel casing of establishing in the outer steel casing, and internal layer steel casing comprises steel casing body, and steel casing barrel offers opening contact seam vertically; Establish at interval the latch gear of open seam on the barrel of open seam both sides, latch gear comprises on the barrel of open seam both sides and connects lock tube, is connected by latch between the lock tube of both sides.
Described latch upper end connects the rope of pulling pin.
The rope other end of pulling pin on described each latch is connected to the pull rope of pulling pin, and pulls pin and leads
The other end of messenger is located at the upper end of steel casing body.
Latch in the latch gear of establishing is to run through the bolt rod that connects plural lock tube at interval.
But drilled pile is constructed in the reusable internal layer steel of folding casing, and outer steel casing plays the effect of carrying external water pressure and location.After drilled pile construction final set is finished, but after the latch extraction with the reusable steel casing of folding latch gear, steel casing barrel opening contact seam distending vertically, after treating that the pile foundation concrete reaches certain intensity, be but that available vibrating hammer is extracted internal layer folding steel casing, and outer steel casing also can be extracted.The steel casing of structure of the present invention can be extracted repeated use, and what significantly reduce the steel casing uses the material amount, reduces and builds construction cost.
Description of drawings
Fig. 1 looks schematic diagram based on combination steel steel casing master.
Fig. 2 is based on combination steel steel casing schematic top plan view.
Fig. 3 latch gear structural representation.
Fig. 4 support limit plate schematic diagram.
The specific embodiment
Present embodiment is used for the explanation to invention claims, and protection scope of the present invention is not limited to the structure of following description.The following structural change of being done in those skilled in the art's technical solution of the present invention that is different from all belongs to protection scope of the present invention.
As shown in Figure 1, outer steel casing 7 is to be welded into monolithic steel casing, and is identical with existing steel casing structure.Be provided with internal layer steel casing 8 in the outer steel casing 7, have gap 9 between internal layer steel casing 8 and the outer steel casing 7.Internal layer steel casing 8 comprises that steel casing body 1 is that steel sheet rolls and forms, and steel casing barrel offers opening contact seam 2 vertically, and the gap of opening contact seam 2 is 0~5 millimeter.The barrel of open seam both sides is provided with the latch gear 3 of open seam from top to bottom at interval.Steel casing body is located at down for 1 time on the joint support tube 4, and the barrel of lower support tube 4 is provided with support limit plate 5 along circumference, and support limit plate 5 is offered lifting hole(eyelet) 6, shown in Fig. 2,4.Lower support tube 4 is enclosed within the steel casing body 1, and the lower surface of steel casing body 1 is supported on the support limit plate 5.
Latch gear 3 comprises the lock tube 3.1 that is connected opening contact seam one side tube-wall, is connected the lock tube 3.2 of opening contact seam opposite side barrel; Lock tube 3.1 is inserted in the lock tube 3.2 in the present embodiment, lock tube 3.1 is offered pin-and-hole 3.7, lock tube 3.2 is offered two pin-and-holes 3.8, and the pin-and-hole that latch 3.3 passes on the lock tube 3.2 is connected the both sides lock tube with pin-and-hole on the lock tube 3.1, and the opening contact seam of like this steel casing barrel being offered vertically connects.
Connection latch in the present embodiment on the steel casing body divides upper latch and bottom latch.Upper latch is to run through the bolt rod 3.4 (as shown in Figure 1) that connects plural lock tube, and promptly bolt rod 3.4 passes the seven groups of lock tubes 3.1 on steel casing barrel top and the pin-and-hole of lock tube 3.2;
The bottom latch is a single lock tube latch 3.3 (shown in Figure 3), latch 3.3 is offered connecting hole 3.9, latch 3.3 upper ends connect the rope 3.5 of pulling pin, and rope 3.5 other ends of pulling pin on each latch 3.3 are connected to the pull rope 3.6 of pulling pin, and the other end of the pull rope 3.6 of pulling pin is located at the upper end of steel casing body.
The rope 3.5 of pulling pin in the said structure is wire rope with the pull rope 3.6 of pulling pin.Said structure had both solved whole lock tubes when adopting same bolt rod to connect, and the coaxial demanding problem of the pin-and-hole of lock tube also solves the problem that the bottom latch is extracted out.
Internal layer steel casing 8 employing Q235 steel sheets roll and form in the present embodiment.Casing body 1 internal diameter is than the big 1~1.5cm of lower support tube 4 external diameters in the internal layer, and lower support tube 4 internal diameters equal the drilled pile diameter, and length is 2m, and it is 20cm that lower support tube 4 stretches into the interior casing body 1 interior length of internal layer.Lower support tube 4 is connected with casing body 1 in the internal layer with wire rope 5.1 by being welded on oneself 4 blocks of support limit plates 5 on one's body temporarily.
The drilled pile construction embodiment waterborne of combinations thereof steel casing is as follows:
1, set up drilling platform according to routine, the outer steel casing 7 of sinking carries out the clear hole first time behind the pore-forming.
2, internal layer steel casing 8 is transported on the drilling platform, sinking internal layer steel casing 8, outer steel casing 7 bottom 1.6m are stretched out in its bottom, and are fixed on the drilling platform.
3, transfer reinforcing cage, cast drilled pile concrete.
4, after the final set of pile foundation concrete, extract the elongated latch 3.4 of casing body 1 top 6m in the internal layer earlier, extract the latch 3.3 of casing body 1 bottom in the internal layer from the bottom up successively by the wire rope 3.6 of pulling pin then, after latch 3.3 was extracted, casing body 1 opened along opening contact seam nature in the internal layer.
5, extract wire rope 5.1 on the lower support tube 4 support limit plates 5 out, treat that the pile foundation concrete reaches certain intensity after, with vibrating hammer casing body 1 in the internal layer is extracted, wear pin after turnover use.
6, outer steel casing 7 uses as the mud circulation pond of adjacent pile foundation construction, treats after the adjacent holes pile foundation construction finishes it to be extracted.
The present invention in pile foundation construction, reduces steel casing consumption because internal layer steel casing and outer steel casing can overlap the turnover use, because concrete perfusion is finished, saves the concrete square amount simultaneously in internal layer steel casing.

Claims (10)

1, a kind of drilled pile construction method waterborne based on combination steel casing, it is to set up drilling platform, the outer steel casing of sinking is behind the clear hole of pore-forming; After sinking internal layer steel casing puts in place in outer steel casing, in internal layer steel casing, carry out pile foundation construction; After treating the final set of pile foundation concrete, extract internal layer steel casing out, extract outer steel casing again out; Described internal layer steel casing comprises steel casing body, and steel casing barrel offers opening contact seam vertically; Establish the latch gear of open seam on the barrel of open seam both sides at interval.
2, according to claim 1 based on the drilled pile construction method waterborne of combination steel casing, it is characterized in that extracting out internal layer steel casing is the latch gear of opening on the internal layer steel casing, with vibrating hammer internal layer steel casing is extracted.
3,, it is characterized in that internal layer steel casing is supported on down joint and supports on the internal layer steel casing as claimed in claim 1 or 2 based on the drilled pile construction method waterborne of combination steel casing; Described extraction internal layer steel casing is to extract out to go up folding internal layer steel casing.
4, as described in the claim 3 based on the drilled pile construction method waterborne of combination steel casing, it is characterized in that the following joint of internal layer steel casing is supported internal layer steel casing sinking to making its bottom stretch out outer steel casing bottom.
5, as described in the claim 2 based on the drilled pile construction method waterborne of combination steel casing, it is characterized in that the described latch gear of opening on the internal layer steel casing is the latch of extracting in the latch gear, the opening contact seam nature that internal layer steel casing is offered vertically opens.
6, a kind of combination steel casing, it comprises outer steel casing, it is characterized in that it also comprises the internal layer steel casing of establishing in the outer steel casing, and internal layer steel casing comprises steel casing body, and steel casing barrel offers opening contact seam vertically; Establish at interval the latch gear of open seam on the barrel of open seam both sides, latch gear comprises on the barrel of open seam both sides and connects lock tube, is connected by latch between the lock tube of both sides.
But, it is characterized in that the latch upper end connects the rope of pulling pin 7, as the reusable steel casing of folding as described in the claim 6.
But 8, as the reusable steel casing of folding as described in the claim 7, it is characterized in that the pulling pin rope other end on each latch is connected to the pull rope of pulling pin, the other end of the pull rope of pulling pin is located at the upper end of steel casing body.
But 9, as the reusable steel casing of folding as described in the claim 6, the latch in the latch gear that it is characterized in that establishing at interval is to run through the bolt rod that connects plural lock tube.
But 10, the reusable steel casing of folding according to claim 1, it is characterized in that it comprises that also joint supports internal layer steel casing down, following joint supports internal layer steel casing and comprises barrel, and barrel is provided with the support limit plate, and internal layer steel casing is enclosed within on the lower support tube and is supported by the support limit plate.
CN 200910063788 2009-09-01 2009-09-01 Combined steel casing and construction method of waterborne drilled pile based on same Active CN101644050B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200910063788 CN101644050B (en) 2009-09-01 2009-09-01 Combined steel casing and construction method of waterborne drilled pile based on same

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Application Number Priority Date Filing Date Title
CN 200910063788 CN101644050B (en) 2009-09-01 2009-09-01 Combined steel casing and construction method of waterborne drilled pile based on same

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CN101644050A true CN101644050A (en) 2010-02-10
CN101644050B CN101644050B (en) 2011-09-21

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102808411A (en) * 2011-06-01 2012-12-05 五冶集团上海有限公司 Bored cast-in-place pile casing and using method thereof
CN104480934A (en) * 2014-12-12 2015-04-01 中铁十九局集团有限公司 Water drilling pile foundation construction system capable of recycling outer steel protecting tube, and construction method of water drilling pile foundation construction system
CN105002890A (en) * 2015-07-15 2015-10-28 杭州江润科技有限公司 Abyssal region cast-in-situ bored pile nondestructive assembly and disassembly double-layer steel casing group structure and construction method
CN106677176A (en) * 2016-12-30 2017-05-17 重庆中材参天建材有限公司 Steel casing device convenient to recycle
CN110469272A (en) * 2019-07-31 2019-11-19 中国一冶集团有限公司 A kind of construction of pile foundation casing follow-up step reaming and recyclable device
CN110777787A (en) * 2019-10-18 2020-02-11 中铁十局集团第一工程有限公司 Method for preventing drilled pile from collapsing by automatically bouncing steel casing

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102808411A (en) * 2011-06-01 2012-12-05 五冶集团上海有限公司 Bored cast-in-place pile casing and using method thereof
CN104480934A (en) * 2014-12-12 2015-04-01 中铁十九局集团有限公司 Water drilling pile foundation construction system capable of recycling outer steel protecting tube, and construction method of water drilling pile foundation construction system
CN105002890A (en) * 2015-07-15 2015-10-28 杭州江润科技有限公司 Abyssal region cast-in-situ bored pile nondestructive assembly and disassembly double-layer steel casing group structure and construction method
CN105002890B (en) * 2015-07-15 2017-03-08 杭州江润科技有限公司 A kind of profundal zone cast-in-situ bored pile is lossless to assemble and disassemble double-deck steel pile casting group structure and construction method
CN106677176A (en) * 2016-12-30 2017-05-17 重庆中材参天建材有限公司 Steel casing device convenient to recycle
CN106677176B (en) * 2016-12-30 2018-10-26 重庆中材参天建材有限公司 A kind of steel pile casting device convenient for recycling
CN110469272A (en) * 2019-07-31 2019-11-19 中国一冶集团有限公司 A kind of construction of pile foundation casing follow-up step reaming and recyclable device
CN110469272B (en) * 2019-07-31 2020-10-23 中国一冶集团有限公司 Reaming and recovering device for pile foundation casing follow-up construction
CN110777787A (en) * 2019-10-18 2020-02-11 中铁十局集团第一工程有限公司 Method for preventing drilled pile from collapsing by automatically bouncing steel casing

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