CN103485340A - Wave-web fore-shaft steel casing device and construction method thereof - Google Patents

Wave-web fore-shaft steel casing device and construction method thereof Download PDF

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Publication number
CN103485340A
CN103485340A CN201310425743.9A CN201310425743A CN103485340A CN 103485340 A CN103485340 A CN 103485340A CN 201310425743 A CN201310425743 A CN 201310425743A CN 103485340 A CN103485340 A CN 103485340A
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CN
China
Prior art keywords
steel casing
construction
antinode plate
horizontal ring
antinode
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Application number
CN201310425743.9A
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Chinese (zh)
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CN103485340B (en
Inventor
李宗平
郭佳嘉
李桂华
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CCCC Second Harbor Engineering Co
CCCC SHEC Fourth Engineering Co Ltd
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CCCC Second Harbor Engineering Co
CCCC SHEC Fourth Engineering Co Ltd
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Abstract

The invention discloses a wave-web fore-shaft steel casing and a construction method thereof and belongs to the field of bridge foundation construction. The wave-web fore-shaft steel casing device comprises an annular steel casing formed by splicing of a plurality of wave webs end to end, fore-shaft mechanisms are arranged on both the heads and the tails of the wave webs, the every neighboring wave webs are connected through the fore-shaft mechanisms, a horizontal ring beam at least fixedly provided with an upper layer and a lower layer is detachably connected with the inner wall of the steel casing, the horizontal ring beam is close to the top of the steel casing, and lugs are arranged on the upper-layer horizontal ring beam. The construction sequentially includes the steps: assembling the pre-prepared wave webs into the steel casing on a construction site; adding the horizontal ring beam to the steel casing; using a vibratory hammer to have the steel casing vibrated in place after integral lifting is in place, removing a horizontal ring beam system, and performing drilled pile construction; pulling up the wave webs one by one for recycling when the drilled pile construction is completed. The wave-web fore-shaft steel casing and the construction method thereof aim at the drilled pile oversized in diameter, so that convenience in construction is achived, and cost is lower.

Description

A kind of antinode plate fore shaft steel casing device and job practices thereof
Technical field
The invention belongs to the bridge foundation construction field, be applicable to ultra-large type Bored Pile Foundation construction in water.
Background technology
1) conventional piles construction technology in water:
The steel casing is exactly in the process of carrying out pile foundation construction, because soil property is unstable, so the construction reinforced bar concrete guard wall exists larger difficulty to adopt the retaining wall of steel to be protected the hole stake, prevents that collapse hole from avoiding affecting a kind of works of construction speed and safety.It has stable hole wall, the hole that prevents from collapsing, form mud pressure, can also isolate surface water, the effects such as starter, spud pile position, protection operation original ground.The steel casing is the important structure thing in Bored Pile Foundation of Bridge.The conventional steel casing adopts certain thickness steel plate scene or factory to roll.After completing, handling is to place, on-the-spot stake position vibration-sunk.
2) limitation of traditional construction technology:
When the tradition construction technology adopts the construction of steel casing, after pile foundation construction completes, the casing steel are not recyclable, thereby cause great waste; And during conventional construction, in order to meet the local stability sexual needs of casing wall body, by the job specfication requirement, the casing wall thickness should reach radius-thickness ratio 1/120, therefore traditional construction technology applicable less steel casing of drilled pile diameter only, when the stake footpath over 2.4 meters, when the casing wall thickness is greater than 30mm, casing rolls difficulty will be increased greatly, has increased great difficulty to processing, transportation and the lifting of steel casing, and the difficulty of construction in heavy process is shaken in construction also can increase greatly.Visible, traditional handicraft has certain limitation, and particularly, in the work progress of large diameter pile, limitation is larger.
Summary of the invention
The object of the invention is to: for super-large diameter drilled pile (diameter is greater than 2.4m) construction, propose a kind of antinode plate fore shaft steel casing device and job practices thereof of constructing more convenient, that cost is lower.
The object of the invention realizes by following technical proposals:
A kind of antinode plate fore shaft steel casing device, comprise by several antinode plates annular steel casing that amalgamation forms that joins end to end, described antinode plate is equipped with locking mechanism from beginning to end, the adjacent wave web is connected by this locking mechanism, described steel casing inwall removably connects and is fixed with at least two-layer up and down horizontal ring beam, and the horizontal ring beam of the superiors is provided with hanger.
In such scheme, for super-large diameter drilled pile (diameter is greater than 2.4m), construct, adopt antinode plate fore shaft steel casing, each antinode plate can factory directly be realized processing also and can on-the-spotly process in advance, and working (machining) efficiency is higher; Each antinode plate can become the steel casing by on-the-spot direct-assembling, fast and easy and not limited by construction diameter; After the large diameter pile construction, the steel of recyclable steel casing are reused, and reduce costs; Utilize warpage outside the plane of antinode plate, increase steel casing out of plane stiffness, thereby meet the structural stability requirement under less wall thickness, and then reduce dead load, reduce lifting and drop into.Horizontal ring beam, in order to set wave web fore shaft steel casing, is convenient to lifting simultaneously.
As selection, described antinode plate becomes section closely trapezoidal by a monoblock steel plate bending, its section configuration is by the main part that is the two-stage boss shape, the outside turnup in main part two ends is bent into the described locking mechanism that hook forms, and the main part two-stage boss shape opening of each antinode plate of described steel casing alternately arranges in the steel casing or outside the steel casing.
In such scheme, special locking mechanism and combination, after making drilled pile construction, can directly pull up each antinode plate one by one, recycles.
As selection, the locking mechanism that described each antinode plate connects is perfused with waterproofing agent.
In such scheme, further improve the block-water performance of locking mechanism.
As further selection, described waterproofing agent is butter or epoxy mortar.
As selection, described horizontal ring beam is spliced to form from beginning to end by a plurality of Curved beams.
In such scheme, horizontal ring beam mounting or dismounting fast and easy, efficiency of construction is higher.
As selection, described horizontal ring beam is two-layer, and near steel casing top.
As selection, described horizontal ring beam removably connects fixing by bolt and described steel casing.
Aforementioned master's scheme of the present invention and each further selection scheme thereof can independent assortment to form a plurality of schemes, be that the present invention can adopt and claimed scheme.
The job practices of aforementioned waves web fore shaft steel casing device comprises the following steps successively:
A, the antinode plate that will prepare in advance are assembled into the steel casing at the construction field (site);
B, install horizontal ring beam additional on the steel casing;
After C, integral hoisting put in place, with vibrating hammer, the steel casing is carried out to integral body and shake and sink to position, the horizontal loops of dismantling girder system, carry out drilled pile construction;
D, treat that drilled pile construction is complete, then each antinode plate is pulled up one by one, recycle.
Beneficial effect of the present invention: this steel sheet pile shaped steel casing device, the shortcomings such as the construction of conventional steel casing is not recyclable, wall thickness large, outerplanar rigidity is little have been overcome, use the method, can save great deal of steel, reduce the structure wall thickness, increase structure outerplanar rigidity, reduce super-large diameter drilled pile construction difficulty.
The accompanying drawing explanation
Fig. 1 is the antinode plate fore shaft steel casing device floor map of the embodiment of the present invention;
The partial enlarged drawing that Fig. 2 is Fig. 1;
Fig. 3 is antinode plate fore shaft steel casing device when lifting elevational schematic view of the embodiment of the present invention;
Wherein 1 is that antinode plate, 2 is that steel casing, 3 is that horizontal ring beam, 4 is that hanger, 5 is that vertical secondary beam, 6 is that hawser, 11 is locking mechanism, and 12 is main part.
The specific embodiment
Following non-limiting examples is for illustrating the present invention.
As Figure 1-3, a kind of antinode plate fore shaft steel casing device, comprise by several antinode plates 1 annular steel casing 2 that amalgamation forms that joins end to end, antinode plate 1 head and the tail are equipped with locking mechanism 11, adjacent wave web 1 is connected by this locking mechanism 11, steel casing 2 inwalls removably connect and are fixed with bilevel horizontal ring beam 3, and horizontal ring beam 3 is near steel casing 2 tops, and the horizontal ring beam 3 of the superiors is provided with hanger 4.Antinode plate 1 becomes section closely trapezoidal by a monoblock steel plate bending, its section configuration is by the main part 12 that is the two-stage boss shape, the main part 11 outside turnups in two ends are bent into the locking mechanism 11 that hook forms, and the main part 12 two-stage boss shape openings of each antinode plate 1 of steel casing 2 alternately arrange in steel casing 2 or outside steel casing 2.The locking mechanism 11 that each antinode plate 1 connects is perfused with waterproofing agent, and waterproofing agent is butter or epoxy mortar.Horizontal ring beam 3 is spliced to form from beginning to end by a plurality of Curved beams, and removably connects fixing by bolt and steel casing 2.Between upper and lower horizontal ring beam 3, vertical secondary beam 5 can also be set.
The job practices of aforementioned waves web fore shaft steel casing device comprises the following steps successively:
A, the antinode plate 1 that will prepare in advance are assembled into steel casing 2 at the construction field (site);
B, install horizontal ring beam 3 additional on steel casing 2;
After C, integral hoisting put in place, with vibrating hammer, steel casing 2 is carried out to integral body and shake and sink to position, the horizontal ring beam 3 of dismantling is to carry out drilled pile construction;
D, treat that drilled pile construction is complete, then each antinode plate 1 is pulled up one by one, recycle.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.

Claims (8)

1. an antinode plate fore shaft steel casing device, it is characterized in that: comprise by several antinode plates annular steel casing that amalgamation forms that joins end to end, described antinode plate is equipped with locking mechanism from beginning to end, the adjacent wave web is connected by this locking mechanism, described steel casing inwall removably connects and is fixed with at least two-layer up and down horizontal ring beam, and the horizontal ring beam of the superiors is provided with hanger.
2. antinode plate fore shaft steel casing device as claimed in claim 1, it is characterized in that: described antinode plate becomes section closely trapezoidal by a monoblock steel plate bending, its section configuration is by the main part that is the two-stage boss shape, the outside turnup in main part two ends is bent into the described locking mechanism that hook forms, and the main part two-stage boss shape opening of each antinode plate of described steel casing alternately arranges in the steel casing or outside the steel casing.
3. antinode plate fore shaft steel casing device as claimed in claim 1 is characterized in that: the locking mechanism that described each antinode plate connects is perfused with waterproofing agent.
4. antinode plate fore shaft steel casing device as claimed in claim 3, it is characterized in that: described waterproofing agent is butter or epoxy mortar.
5. antinode plate fore shaft steel casing device as claimed in claim 1, it is characterized in that: described horizontal ring beam is spliced to form from beginning to end by a plurality of Curved beams.
6. antinode plate fore shaft steel casing device as claimed in claim 1, it is characterized in that: described horizontal ring beam is two-layer, and near steel casing top.
7. antinode plate fore shaft steel casing device as claimed in claim 1, it is characterized in that: described horizontal ring beam removably connects fixing by bolt and described steel casing.
8. the job practices of the antinode plate fore shaft steel casing device described in arbitrary claim in claim 1 to 7 is characterized in that comprising the following steps successively:
A, the antinode plate that will prepare in advance are assembled into the steel casing at the construction field (site);
B, install horizontal ring beam additional on the steel casing;
After C, integral hoisting put in place, with vibrating hammer, the steel casing is carried out to integral body and shake and sink to position, the horizontal loops of dismantling girder system, carry out drilled pile construction;
D, treat that drilled pile construction is complete, then each antinode plate is pulled up one by one, recycle.
CN201310425743.9A 2013-09-18 2013-09-18 A kind of antinode plate fore shaft steel pile casting device and construction method thereof Active CN103485340B (en)

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Application Number Priority Date Filing Date Title
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CN103485340B CN103485340B (en) 2016-03-30

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104988915A (en) * 2015-07-15 2015-10-21 中铁上海工程局集团有限公司 Prefabrication and installation method of detachable steel protection tube device and underwater connection beam
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

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000027176A (en) * 1998-07-06 2000-01-25 Midori:Kk Steel sheet pile and paired steel sheet pile
CN2469046Y (en) * 2001-04-04 2002-01-02 陈扬德 Prefabricated steel bar reinforced concrete bulk head for piles
CN101250880A (en) * 2007-12-19 2008-08-27 中铁大桥局集团第一工程有限公司 Method for embedding and fixing steel tube concrete pile and steel tube pile anchor
CN103276729A (en) * 2013-06-03 2013-09-04 浙江金筑交通建设有限公司 Moving steel casing and cast-in-place pile construction method using same
CN203475425U (en) * 2013-09-18 2014-03-12 中交二航局第四工程有限公司 Loop plate preliminary shaft steel casing device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000027176A (en) * 1998-07-06 2000-01-25 Midori:Kk Steel sheet pile and paired steel sheet pile
CN2469046Y (en) * 2001-04-04 2002-01-02 陈扬德 Prefabricated steel bar reinforced concrete bulk head for piles
CN101250880A (en) * 2007-12-19 2008-08-27 中铁大桥局集团第一工程有限公司 Method for embedding and fixing steel tube concrete pile and steel tube pile anchor
CN103276729A (en) * 2013-06-03 2013-09-04 浙江金筑交通建设有限公司 Moving steel casing and cast-in-place pile construction method using same
CN203475425U (en) * 2013-09-18 2014-03-12 中交二航局第四工程有限公司 Loop plate preliminary shaft steel casing device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104988915A (en) * 2015-07-15 2015-10-21 中铁上海工程局集团有限公司 Prefabrication and installation method of detachable steel protection tube device and underwater connection beam
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

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