CN104762965B - A kind of concrete breast-stroke anchor for Large Steel well foundation location and construction method - Google Patents
A kind of concrete breast-stroke anchor for Large Steel well foundation location and construction method Download PDFInfo
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- CN104762965B CN104762965B CN201510127208.4A CN201510127208A CN104762965B CN 104762965 B CN104762965 B CN 104762965B CN 201510127208 A CN201510127208 A CN 201510127208A CN 104762965 B CN104762965 B CN 104762965B
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Abstract
A kind of concrete breast-stroke anchor for Large Steel well foundation location and construction method, relate to Bridge Construction technical field, one end of anchor body bottom surface has a positioning tooth, the anchor body bottom surface other end and adjacent side are along the gradually limit of bottom surface obliquely downward, form the locating piece of wedge shape, the end of locating piece is fixed with the tooth block of Plate Welding, and the upper lozenges of locating piece is pre-buried arranges anchoring part.In work progress, first make concrete breast-stroke anchor connection cable, location of casting anchor, steel open caisson is arranged linear winches, lower guider and upper guider, after at transportation by driving to pier position, the other end of hawser is connected steel open caisson, finally regulate the length of hawser, it is achieved steel well foundation positions.Present configuration is simple, and good positioning effect, working procedure is simple.
Description
Technical field
The present invention relates to Bridge Construction technical field, it is a kind of heavy for Large Steel to be specifically related to
The concrete breast-stroke anchor of well foundation location and construction method.
Background technology
Along with growing to span of bridge of deepwater field bridge construction, the bearing capacity of bridge foundation
Requiring more and more higher, therefore, the application of Large Steel well foundation is increasing.Steel open caisson conduct
A kind of bridge foundation, its quality is big, long construction period, needs to bear flowing water pressure in work progress
The multiple loads such as power, the wind-force acted on steel open caisson, operating mode complicated, and steel open caisson under
During calm bed, the change of flow-shape near pier position can be caused, cause the erosion and deposition in riverbed to become
Changing, therefore, Large Steel well foundation difficulty in the work progress of location is bigger.In deep water conditions
Under, iff by common weight positioning of anchor, locating effect it is difficult to ensure that；；Inserted to play steel anchor
Stake；Coordinate and anchor into row location, although locating effect is preferable, but structure is complicated, and when covering
When layer is weaker, the difficulty of inserted to play steel anchoring pile is very big, implements extremely difficult, location
Effect is difficult to ensure that.It addition, need to draw cable and limit cable to carry out down to main during steel well sinking
Cable and adjustment, working procedure is complicated, and anchor chain alignment system quantity is more in addition, steel well sinking
During adjust difficulty, precision is wayward so that positioning accurate parasexuality is poor；Construction period is longer,
Assembling and disassembling difficulty of construction is relatively big, is unfavorable for deepwater regions construction operation.
Summary of the invention
For defect present in prior art, it is an object of the invention to provide a kind of for greatly
The concrete breast-stroke anchor of shaped steel well foundation location and construction method, simple in construction, locating effect
Good, working procedure is simple.
For reaching object above, the present invention adopts the technical scheme that: a kind of heavy for Large Steel
The concrete breast-stroke anchor of well foundation location, the anchor body made including concrete, the one of anchor body bottom surface
End has a positioning tooth, and positioning tooth is by a fin being parallel to bottom surface and inclined-plane, both sides group thereof
Becoming, one of them inclined-plane extends to a side of anchor body, the anchor body bottom surface other end and sides adjacent
Face, along the gradually limit of bottom surface obliquely downward, forms the locating piece of wedge shape, and the end of locating piece is fixing to be set
Having the tooth block of Plate Welding, the upper lozenges of locating piece is pre-buried arranges anchoring part.
On the basis of technique scheme, anchoring part is the box-structure that Plate Welding becomes, anchoring part
One end be embedded in advance in locating piece, the other end folder for being anchor point, between anchoring part and anchor body bottom surface
Angle is 15～30 °.
On the basis of technique scheme, the end face of anchor body is pre-buried arranges 4 suspension centres, described
Suspension centre is formed by Plate Welding.
On the basis of technique scheme, described anchor body is provided with steam vent, described steam vent by
Anchor body end face runs through bottom surface and arranges.
The construction method of a kind of Large Steel well foundation location, comprises the following steps:
S1. make concrete breast-stroke anchor, and the anchoring part of each concrete breast-stroke anchor is connected one
One end of hawser, is transported to job site by barge；
S2. crane barge is utilized, by four concrete breast-stroke anchors in the anchor position of the corner, pier position of steel open caisson
Cast anchor location in waters；
S3. four linear winches are arranged at the steel open caisson end face manufactured, at steel open caisson relative to two
Guider on guider and two groups is respectively installed under two groups in side, often the upper guider of group and under
Guider all includes a directive wheel, and lower guider is arranged in the middle part of side, place, above leads
The top sides edge of side, place it is arranged to device；
S4. after at steel open caisson transportation by driving to pier position, the hawser that each concrete breast-stroke anchor is connected
The other end walk around the directive wheel of neighbouring lower guider, the guiding of upper guider successively
Wheel, connects a linear winches；
S5. start linear winches, regulate the length of every hawser, overcome the horizontal lotus of steel open caisson
Carry, it is achieved the accurate foundation location of steel open caisson.
On the basis of technique scheme, each concrete breast-stroke anchor with corresponding under guider
Between hawser and water (flow) direction between angle be 30～60 °.
On the basis of technique scheme, often the lower guider of group include a lower directive wheel,
A piece bearing pin and two support seats, two support seats and are welded in steel open caisson, and two support seats are common
Fixing described bearing pin, lower directive wheel is set up in bearing pin.
On the basis of technique scheme, linear winches is fixed on steel open caisson by counter-force seat
Top opening, every linear winches lays respectively at the relative of steel open caisson both sides with corresponding upper guider
Position.
On the basis of technique scheme, the top opening of steel open caisson is provided with for reinforcing steel open caisson
Steel pipe.
On the basis of technique scheme, in step S5, linear winches starts, and hawser is received
Tightly, first, the concrete breast-stroke anchor that hawser connects moves to steel open caisson, and locating piece oblique cutting enters to cover
Cap rock, it is achieved the location of concrete breast-stroke anchor, then, steel open caisson moves towards concrete breast-stroke anchor
Dynamic, overcome the horizontal loading of steel open caisson.
The beneficial effects of the present invention is:
1, concrete breast-stroke anchor of the present invention is to use armored concrete to make, and makes on the coast,
Simple in construction, can change the sectional dimension of anchor body, control concrete according to steel open caisson stress size
The gravity load of breast-stroke anchor.
2, concrete breast-stroke anchor of the present invention includes the locating piece of positioning tooth and wedge shape, locating piece
End is the tooth block of tooth-shape structure, concrete breast-stroke anchor connection cable, and becomes a clamp with hawser
Angle, when, after cable stress, the positioning tooth of concrete breast-stroke anchor is inserted vertically into cover layer, locating piece
Oblique cutting enters in cover layer, can guarantee that stablizing of the anchorage system that concrete breast-stroke anchor forms, location
Effective.
3, steel well foundation localization method of the present invention is in the corner of steel open caisson, utilizes the concrete frog
Formula anchor casts anchor location, connects steel open caisson by hawser, can adjust by regulating the length of hawser
Joint steel open caisson, in the position of horizontal all directions, reaches the purpose of accurate foundation location.This side
Method can effectively solve to bear flow force in the work progress that steel well foundation positions and wind load is made
Impact, beneficially deepwater regions construction operation；Need not inserted to play steel anchoring pile, working procedure
Simply, location accuracy is high, construction cost is low, especially in the waters that cover layer is weak, and can
Strong operability, site operation difficulty is low.
Accompanying drawing explanation
Fig. 1 is the structure top view of concrete breast-stroke anchor of the present invention；
Fig. 2 is the Fig. 1 sectional view along line A-A；
Fig. 3 is the structural representation in the work progress of Large Steel well foundation of the present invention location；
Fig. 4 is the enlarged drawing of part B in Fig. 3；
Fig. 5 is the structural representation of lower guider in Fig. 3；
Fig. 6 is the top view of Fig. 3；
Fig. 7 is the structural representation of Fig. 6 steel open caisson part.
Reference:
1-concrete breast-stroke anchor, 11-anchor body, 12-positioning tooth, 13-locating piece, 14-anchoring part, 15-
Suspension centre, 16-tooth block, 17-steam vent, 2-steel open caisson, 3-hawser, guider under 4-, 41-
Lower directive wheel, 42-bearing pin, 43-supports seat, the upper guider of 5-, 6-linear winches, 7-steel
Pipe, 8-counter-force seat.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in further detail.
As depicted in figs. 1 and 2, a kind of concrete breast-stroke for Large Steel well foundation location
Anchor, the anchor body 11 made including concrete, anchor body 11 is provided with steam vent 17, steam vent 17
Being run through bottom surface by anchor body 11 end face to arrange, when conveniently casting anchor, anchor body 11 quickly sinks；Anchor body 11
End face pre-buried 4 suspension centres 15 are set, described suspension centre 15 is formed by Plate Welding, for anchor
The lifting of body 11, transport；One end of anchor body 11 bottom surface has a positioning tooth 12, location
Tooth 12 is made up of a fin being parallel to bottom surface and inclined-plane, both sides thereof, and one of them inclined-plane prolongs
Extending a side of anchor body 11, positioning tooth 12 inserts cover layer, plays positioning action；Anchor
The body 11 bottom surface other end and adjacent side, along the gradually limit of bottom surface obliquely downward, form determining of wedge shape
Position block 13, the end of locating piece 13 is fixed with the tooth block 16 of Plate Welding, tooth block
16 is by the tooth-shape structure of Plate Welding, and fixes with the reinforcement welding in anchor body 11.
The pre-buried anchoring part 14 that arranges of the upper lozenges of locating piece 13, the case that anchoring part 14 becomes for Plate Welding
Type structure, one end of anchoring part 14 is embedded in locating piece 13 in advance, and the other end, for being anchor point, is used for
Connection cable 3, the angle between anchoring part 14 and anchor body 11 bottom surface is 15～30 °.When being anchor
After some connection cable 3, and hawser 3 under tension, tooth block 16 oblique cutting of locating piece 13 end
Entering in cover layer, hawser 3 tension is the biggest, and locating piece 13 inserts the deepest, location effect
Fruit is the best.
As shown in Figure 3 and Figure 6, the construction method of a kind of Large Steel well foundation location, including
Following steps:
S1. make concrete breast-stroke anchor 1, and the anchoring part 14 of each concrete breast-stroke anchor 1 is connected
Connect one end of a hawser 3, be transported to job site by barge.
S2. crane barge is utilized, by four concrete breast-stroke anchors 1 in the corner, pier position of steel open caisson 2
Cast anchor location in waters, anchor position, four concrete breast-stroke anchors 1 about steel open caisson 2 at predeterminated position
Centrosymmetry is arranged.
S3., as shown in Fig. 4, Fig. 5 and Fig. 7, four are arranged at steel open caisson 2 end face manufactured
Linear winches 6, linear winches 6 is fixed on the top opening of steel open caisson 2 by counter-force seat 8；Steel sinks
The top opening of well 2 is provided with the steel pipe 7 for reinforcing steel open caisson 2, it is to avoid during anchorage system work,
Horizontal force makes steel open caisson 2 that local deformation to occur；Two groups are respectively installed in steel open caisson 2 opposite sides face
Guider 5 on lower guider 4 and two groups, the often upper guider 5 of group and lower guider
4 all include that a directive wheel, lower guider 4 are arranged in the middle part of side, place, and upper guiding fills
Put the 5 top sides edges being arranged at side, place.Often the lower guider 4 of group includes guiding under one
Taking turns 41, bearing pin 42 and two support seats 43, two support seats 43 and are welded in steel open caisson
2, two support seat 43 and jointly fix described bearing pin 42, and lower directive wheel 41 is set up in bearing pin 42.
S4., after at steel open caisson 2 transportation by driving to pier position, lower guider 4 arranged by steel open caisson 2
Two sides depend on along water (flow) direction, the other end of the hawser 3 connected by each concrete breast-stroke anchor 1
The secondary directive wheel of neighbouring lower guider 4, the directive wheel of upper guider 5 walked around, connects
One linear winches 6, the anchorage system of composition steel open caisson 2.Each concrete breast-stroke anchor 1 with
The angle between hawser 3 and water (flow) direction between corresponding lower guider 4 is 30～60 °,
Ensureing that anchorage system can bear all directions current and the horizontal loading of wind generation, every linear
Winch 6 lays respectively at the relative position of steel open caisson 2 both sides with corresponding upper guider 5.
S5. starting linear winches 6, regulate the length of every hawser 3, detailed process is: linear
Winch 6 starts, and hawser 3 tightens up, and first, the concrete breast-stroke anchor 1 that hawser 3 connects is to steel
Open caisson 2 moves, and locating piece 13 oblique cutting enters cover layer, it is achieved the location of concrete breast-stroke anchor 1,
Then, steel open caisson 2 moves towards concrete breast-stroke anchor 1, overcomes the horizontal loading of steel open caisson 2,
Realize the accurate foundation location of steel open caisson 2.
The present invention is not limited to above-mentioned embodiment, for those skilled in the art
For, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications,
Within these improvements and modifications are also considered as protection scope of the present invention.This specification is not made in detail
The content described belongs to prior art known to professional and technical personnel in the field.
Claims (10)
1. for a concrete breast-stroke anchor for Large Steel well foundation location, including concrete
The anchor body (11) made, one end of anchor body (11) bottom surface has a positioning tooth (12), fixed
Position tooth (12) is made up of a fin being parallel to bottom surface and inclined-plane, both sides thereof, and one of them is oblique
Face extends to a side of anchor body (11), anchor body (11) the bottom surface other end and adjacent side
Along the gradually limit of bottom surface obliquely downward, form the locating piece (13) of wedge shape, locating piece (13)
End is fixed with the tooth block (16) of Plate Welding, the upper lozenges of locating piece (13)
Pre-buried anchoring part (14) is set, it is characterised in that:
Use described concrete breast-stroke anchor into row Large Steel well foundation location process as follows:
S1. concrete breast-stroke anchor (1) is made, and by the anchoring part of each concrete breast-stroke anchor (1)
(14) connect one end of a hawser (3), be transported to job site by barge；
S2. crane barge is utilized, by four concrete breast-stroke anchor (1) in the pier position of steel open caisson (2)
Cast anchor location in the waters, anchor position of corner；
S3. arrange four linear winches (6) at steel open caisson (2) end face manufactured, sink at steel
Guider (5) on guider (4) and two groups is respectively installed under two groups in well (2) opposite sides face,
Often the upper guider (5) of group and lower guider (4) all include a directive wheel, lower guiding
Device (4) is arranged in the middle part of side, place, and upper guider (5) is arranged at side, place
Top sides edge；
S4. after at steel open caisson (2) transportation by driving to pier position, by each concrete breast-stroke anchor (1)
The other end of hawser (3) connected walk around successively neighbouring lower guider (4) directive wheel,
The directive wheel of upper guider (5), connects a linear winches (6)；
S5. start linear winches (6), regulate the length of every hawser (3), overcome steel open caisson
(2) horizontal loading, it is achieved the accurate foundation location of steel open caisson (2).
2. concrete breast-stroke anchor as claimed in claim 1, it is characterised in that: anchoring part (14)
The box-structure become for Plate Welding, one end of anchoring part (14) is embedded in locating piece (13) in advance,
The other end is for being anchor point, and the angle between anchoring part (14) and anchor body (11) bottom surface is 15～30 °.
3. concrete breast-stroke anchor as claimed in claim 1, it is characterised in that: anchor body (11)
End face pre-buried 4 suspension centres (15) are set, described suspension centre (15) is formed by Plate Welding.
4. concrete breast-stroke anchor as claimed in claim 1, it is characterised in that: described anchor body
(11) being provided with steam vent (17), described steam vent (17) is run through by anchor body (11) end face
Bottom surface is arranged.
5. a Large Steel well foundation based on the concrete breast-stroke anchor described in claim 1
The construction method of location, it is characterised in that comprise the following steps:
S1. concrete breast-stroke anchor (1) is made, and by the anchoring part of each concrete breast-stroke anchor (1)
(14) connect one end of a hawser (3), be transported to job site by barge；
S2. crane barge is utilized, by four concrete breast-stroke anchor (1) in the pier position of steel open caisson (2)
Cast anchor location in the waters, anchor position of corner；
S3. arrange four linear winches (6) at steel open caisson (2) end face manufactured, sink at steel
Guider (5) on guider (4) and two groups is respectively installed under two groups in well (2) opposite sides face,
Often the upper guider (5) of group and lower guider (4) all include a directive wheel, lower guiding
Device (4) is arranged in the middle part of side, place, and upper guider (5) is arranged at side, place
Top sides edge；
S4. after at steel open caisson (2) transportation by driving to pier position, by each concrete breast-stroke anchor (1)
The other end of hawser (3) connected walk around successively neighbouring lower guider (4) directive wheel,
The directive wheel of upper guider (5), connects a linear winches (6)；
S5. start linear winches (6), regulate the length of every hawser (3), overcome steel open caisson
(2) horizontal loading, it is achieved the accurate foundation location of steel open caisson (2).
6. the construction method of Large Steel well foundation location as claimed in claim 5, it is special
Levy and be: each concrete breast-stroke anchor (1) with corresponding under hawser between guider (4)
(3) angle and between water (flow) direction is 30～60 °.
7. the construction method of Large Steel well foundation location as claimed in claim 5, it is special
Levy and be: often the lower guider (4) of group includes a lower directive wheel (41), a bearing pin (42)
Supporting seat (43) with two, two support seat (43) and are welded in steel open caisson (2), and two are propped up
The most fixing described bearing pin (42) of support seat (43), lower directive wheel (41) is set up in bearing pin (42).
8. the construction method of Large Steel well foundation location as claimed in claim 5, it is special
Levy and be: linear winches (6) is fixed on the top opening of steel open caisson (2) by counter-force seat (8),
Every linear winches (6) lays respectively at steel open caisson (2) with corresponding upper guider (5)
The relative position of both sides.
9. the construction method of Large Steel well foundation location as claimed in claim 5, it is special
Levy and be: the top opening of steel open caisson (2) is provided with the steel pipe (7) for reinforcing steel open caisson (2).
10. the construction method of Large Steel well foundation location as claimed in claim 5, it is special
Levying and be: in step S5, linear winches (6) starts, and hawser (3) tightens up, first,
Concrete breast-stroke anchor (1) that hawser (3) connects is mobile to steel open caisson (2), locating piece (13)
Oblique cutting enters cover layer, it is achieved the location of concrete breast-stroke anchor (1), then, and steel open caisson (2)
Mobile towards concrete breast-stroke anchor (1), overcome the horizontal loading of steel open caisson (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510127208.4A CN104762965B (en) | 2015-03-23 | 2015-03-23 | A kind of concrete breast-stroke anchor for Large Steel well foundation location and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510127208.4A CN104762965B (en) | 2015-03-23 | 2015-03-23 | A kind of concrete breast-stroke anchor for Large Steel well foundation location and construction method |
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| CN104762965A CN104762965A (en) | 2015-07-08 |
| CN104762965B true CN104762965B (en) | 2016-08-31 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111395339A (en) * | 2020-03-23 | 2020-07-10 | 中国一冶集团有限公司 | Mounting structure and mounting method for accurately embedding cast-in-situ bored pile casing |
| CN112609585B (en) * | 2020-12-18 | 2022-08-30 | 中铁大桥局集团第四工程有限公司 | Cable construction method suitable for positioning overwater large-sized steel open caisson |
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| CN1186502C (en) * | 2003-06-27 | 2005-01-26 | 中铁大桥局集团有限公司 | Method for positioning floatation transported heavy anchor of steel caisson of deep underwater foundation of bridge |
| KR100717252B1 (en) * | 2005-02-03 | 2007-05-15 | 연철흠 | Grouting apparatus and Method of construction work using Earth anchor |
| CN201272969Y (en) * | 2008-12-22 | 2009-07-15 | 湖南路桥建设集团公司 | Guiding facility for putting down steel protection barrel in deep water torrent |
| CN102286974A (en) * | 2011-06-22 | 2011-12-21 | 中铁大桥局股份有限公司 | Reinforced concrete comb anchor |
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