CN106958253A - A kind of new type of deep-water combined steel plate pile cofferdam construction method - Google Patents
A kind of new type of deep-water combined steel plate pile cofferdam construction method Download PDFInfo
- Publication number
- CN106958253A CN106958253A CN201710304363.8A CN201710304363A CN106958253A CN 106958253 A CN106958253 A CN 106958253A CN 201710304363 A CN201710304363 A CN 201710304363A CN 106958253 A CN106958253 A CN 106958253A
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- Prior art keywords
- purlin
- steel
- pile casting
- cofferdam
- enclose
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/02—Restraining of open water
- E02D19/04—Restraining of open water by coffer-dams, e.g. made of sheet piles
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/02—Sheet piles or sheet pile bulkheads
- E02D5/03—Prefabricated parts, e.g. composite sheet piles
- E02D5/04—Prefabricated parts, e.g. composite sheet piles made of steel
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The present invention relates to Construction Technique of Steel Sheet Cofferdam field, in particular to a kind of new type of deep-water combined steel plate pile cofferdam construction method.In cofferdam construction region inserting piling steel pile casting, mounting structures are installed on the part that steel pile casting surfaces, the assembled first layer of mounting structures is relied on to enclose purlin, rely on first layer to enclose the assembled second layer of purlin and enclose purlin, carry out successively until all purlin assembly of enclosing complete to be connected as overall structure, cut off the connection of mounting structures and steel pile casting, integral hoisting is enclosed purlin to design attitude and is fixed on steel pile casting, then by the use of purlin is enclosed as inserting piling steel sheet pile is oriented to until closing up into cofferdam, suspended deck structure construction is then carried out in cofferdam.The present invention encloses purlin and inner support using piecemeal processing, transport, the assembled requirement avoided to crane gear, while live assembled integral transfer again of piecemeal realizes disposable in cofferdam draw water to back cover layer top, reduce the installation procedure for enclosing purlin and inner support, construction effect is improved, construction cost has been saved.
Description
Technical field
The present invention relates to Construction Technique of Steel Sheet Cofferdam field, applied in particular to a kind of new type of deep-water combined steel plate pile cofferdam
Work method.
Background technology
Sheet-pile cofferdam generally by sheet pile, enclose purlin and the big key element of inner support three is constituted, three's cooperative bearing realizes deep water cushion cap
Dry construction condition requirement.Deep water steel sheet-pile cofferdam inner support layer number is more, often leads to construction system conversion complicated.For the problem
Cofferdam construction method has part first branch method and comprehensive rear branch method in conventional water.Invention CN102926387A discloses a kind of steel plate
Pile cofferdam encloses purlin installation and guide device and localization method under water, is part first branch method, is set and be oriented under layering using steel pile casting
Put steel and enclose purlin, the injection sheet pile again after enclosing purlin and being all installed to design attitude.Invention CN104294835A discloses a kind of steel plate
Pile cofferdam construction method, is comprehensive rear branch method, i.e., be first independently arranged guiding construction steel sheet pile, and steel sheet pile inhales mudding afterwards in place
Bottom, then progressively draws water, and successively installs enclose purlin and inner support from top to down, until completion of drawing water, realizes deep water bearing platform construction
Dry construction condition.First branch method requires high to casing perpendicularity for part, is installed while needing such as crane barge large lifting equipment to coordinate,
It is not suitable for lifting restricted waters, and construction cost is high.Branch method after comprehensively, because purlin support influence, space are enclosed in casing and upper strata
It is narrow and small, enclose purlin inner support and need to break up layering and carry out fritter installation, there is that processing capacity is big, the power consumption that persistently draws water is high, and progress
Slow the shortcomings of.
The content of the invention
Enclosed present invention aim to the deficiency for solving above-mentioned background technology there is provided a kind of new type of deep-water combined steel plate pile
Weir construction method.
The technical scheme is that：A kind of new type of deep-water combined steel plate pile cofferdam construction method, it is characterised in that：Enclosing
Weir construction area inserting piling steel pile casting, installs mounting structures on the part that steel pile casting surfaces, and relies on mounting structures assembly the
One layer is enclosed purlin, is relied on first layer to enclose the assembled second layer of purlin and is enclosed purlin, carry out successively until it is all enclose purlin assembly complete to be connected as it is whole
Body structure, cuts off the connection of mounting structures and steel pile casting, and integral hoisting is enclosed purlin to design attitude and is fixed on steel pile casting,
Then close up into cofferdam by the use of enclosing purlin as inserting piling steel sheet pile is oriented to, carry out suspended deck structure construction.
Further described construction method comprises the following steps：
1) on, the inserting piling steel pile casting in cofferdam construction region, the periphery end face for the part surfaced in steel pile casting
Mounting structures are installed；
2), the assembly of support mounting structures is undermost encloses purlin, and inner supporting structure is welded on the inside of purlin enclosing；
3), rely on the undermost assembled layer second from the bottom of purlin that encloses to enclose purlin and its inner supporting structure, carry out successively, until all
Enclose purlin and inner supporting structure assembly complete；
4) hanging device, is set up in steel pile casting upper end, the connection of mounting structures and steel pile casting is cut off, slow decentralization encloses purlin extremely
Design attitude, then will enclose purlin and be fixed together with steel pile casting；
5), rely on and enclose purlin to be oriented to inserting piling steel sheet pile, until closing up to form cofferdam structure；
6) back cover, is carried out to cofferdam bottom, once drawn water, suspended deck structure construction is then carried out.
In further described step 1, support is installed on the periphery end face for the part surfaced in steel pile casting
The method of structure is：Support bracket is installed on the part that steel pile casting surfaces, support bracket is weldingly fixed on steel pile casting
On the periphery end face for the part surfaced.
In further described step 2, it is enclosing method that inner supporting structure is welded on the inside of purlin：Water is welded in purlin enclosing
Flat diagonal brace, horizontal brace, weld the inner supporting structure that purlin is enclosed in cross bar formation between adjacent level stull.
In further described step 3, the undermost assembled layer second from the bottom of purlin that encloses is relied on to enclose purlin and its inner support knot
The method of structure is：Welding contact montant on purlin is enclosed in orlop, then layer second from the bottom is welded on contact montant and encloses purlin, falling
The number second layer welds inner supporting structure between enclosing purlin, completes the assembled process that the second layer encloses purlin.
In further described step 3, the method for setting up hanging device in steel pile casting upper end is：In steel pile casting upper end peace
Bearing beam is filled, punching jack is disposed on bearing beam, by threaded fining twisted steel is through punching jack and encloses purlin fixation company
Connect.
In further described step 3, the construction method that purlin to design attitude are enclosed in slow decentralization is：In enclosing for the superiors
Supporting steel plate is welded in purlin or its inner support, vertically arranged steel pipe is installed on supporting steel plate, multiple steel pipes are centered around
The outside of steel pile casting, during decentralization, steel pipe is fitted on the outside of steel pile casting and plays guide effect.
In further described step 3, will enclose purlin is with the method that steel pile casting is fixed together：Expose water in steel pile casting
On face correspondence the superiors the position for enclosing purlin on welding support bracket, enclose purlin and integrally transfer, until the superiors enclose purlin or its in
Fixed steel pipe lower end, which is shelved, in support is fixed on support bracket.
The present invention for enclose purlin and inner support integral assembling first prop up, the deep water cofferdam construction method of inserting piling steel sheet pile again, first
Enclose purlin and inner support processed using piecemeal, transport, the assembled requirement avoided to crane gear, while live piecemeal be assembled into it is whole
Body is transferred and realizes in cofferdam disposable draw water to back cover layer and push up again, and is greatly reduced the installation procedure for enclosing purlin and inner support,
Construction effect is improved, construction cost has been saved.
Brief description of the drawings
Fig. 1：The cofferdam structure top view of the present invention；
Fig. 2：The assembled first layer of the present invention encloses purlin schematic diagram；
Fig. 3：The present invention relies on first layer to enclose purlin assembly, and other enclose purlin structural representation；
Fig. 4：The present invention entirely encloses purlin structure to the structural representation of design attitude by the lifting of punching jack；
Fig. 5：The steel sheet pile inserting piling schematic diagram of the present invention；
Wherein：1-steel pile casting；2-steel sheet pile；3-enclose purlin；4-support bracket；5-horizontal diagonal brace；6-horizontal brace；
7-cross bar；8-contact montant；9-supporting steel plate；10-steel pipe；11-support bracket；12-punching jack；13-pad
Beam；14-fining twisted steel.
Embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
Such as Fig. 1~5, the cofferdam structure of the present embodiment includes steel pile casting 1, steel sheet pile 2 and encloses purlin 3 and inner supporting structure,
The steel sheet pile 2 of the present embodiment relies on the guide frame enclosed on purlin 3 to carry out inserting piling, guide frame such as Patent No.
Guider described by " 201521102607.7 " this patent, inserting piling steel sheet pile is carried out by enclosing the guide frame on purlin 3
2, realize accurate Fast Installation.
The purlin 3 that encloses of the present embodiment can be integral installation, or be easy to lifting to carry out fractionation installation, will directly enclose
Purlin 3 is lifted on the support bracket 4 on the periphery end face for the part that steel pile casting 1 surfaces, and is then enclosing the weldering of the inner side of purlin 3
Connect inner supporting structure.As shown in Figures 2 and 3, one end of support bracket 4 of the present embodiment is weldingly fixed on steel pile casting 1, the other end to
Horizontal direction extends, and support bracket 4 is typically welded at the water surface 1m of steel pile casting 1, and undermost purlin 3 is enclosed for supporting.
The inner supporting structure of the present embodiment is as shown in figure 1, including horizontal diagonal brace 5, horizontal brace 6 and cross bar 7, horizontal diagonal brace
5 two ends are welded on the adjacent two rhizospheres purlin rod member of same layer, and the two ends of horizontal brace 6 are welded on relative two rhizospheres that same layer encloses purlin 3
On purlin rod member, the two ends of cross bar 7 are welded between adjacent two horizontal braces 6.The gap enclosed between purlin 3 and the inner side of steel sheet pile 2 makes
It is tight with cushion block pad.
Practice of construction step is as follows：
1st, the inserting piling steel pile casting 1 in cofferdam construction region, installs support bracket 4 on the part that steel pile casting 1 surfaces,
The one end of support bracket 4 be weldingly fixed on steel pile casting 1 surface 1m position at, the other end is horizontally extending, support ox
Leg 4 is used to support undermost to enclose purlin 3；
2nd, orlop is lifted on support bracket 4 and encloses purlin 3, it is horizontal then to enclose the horizontal diagonal brace 5 of installation in purlin, level in orlop
Support 6 and the formation inner supporting structure of cross bar 7, as shown in Figure 2；
3rd, welding contact montant 8 on purlin 3 is enclosed in orlop, then relies on contact montant 8 to build the second layer and enclose purlin, second
Layer, which encloses, installs inner supporting structure in purlin, successively lift splicing according to the order and enclose purlin, entirely enclose purlin support system until being formed, such as
Shown in Fig. 3, if the steel pile casting 1 on surfacing encloses the height of purlin less than the superiors, several steel pile castings of selection that can be appropriate
1, spreading is carried out to steel pile casting 1；
4th, lifting lowering system, including the bearing beam 13 positioned at the upper end of steel pile casting 1 are built in the upper end of steel pile casting 1, in bearing beam
Punching jack 12 is installed on 13, is fixedly connected using threaded fining twisted steel 14 through punching jack 12 with enclosing purlin 3,
By punching jack 12, slowly decentralization encloses purlin 3 to design attitude；
5th, it is necessary to ensure that enclosing purlin 3, big skew does not occur in decentralization process, it is therefore desirable to set on purlin 3 is enclosed and be oriented to knot
Structure, the guide frame of the present embodiment as shown in figure 1, enclose welding supporting steel plate 9 in purlin 3 or its inner support in the superiors,
Vertically arranged steel pipe 10 is installed, multiple steel pipes 10 are centered around the outside of steel pile casting 1, during decentralization on supporting steel plate 9, steel pipe 10
It is fitted in plays on the outside of steel pile casting 1 and be also welded with floor how soon on guide effect, supporting steel plate 9, for strengthens whole guiding
The stability of structure；
6th, after enclosing purlin 3 and transferring in place, the correspondence the superiors, which encloses, on steel pile casting 1 installed on the position of purlin 3 support bracket 11,
Then the steel pipe 10 that the superiors are enclosed on purlin or its inner support is shelved on support bracket 11, purlin 3 will be enclosed and be fixed on steel pile casting 1
On, as shown in Figure 4；
7th, rely on and enclose purlin 3 as inserting piling steel sheet pile 2 is oriented to, hold together to form cofferdam structure until steel sheet pile is 2-in-1, as shown in figure 5,
Cofferdam bottom is carried out to discharge the region away from cofferdam after desilting, the filtering slurry of extraction, it is to avoid produce extruding to cofferdam and make
With then to cofferdam progress back cover construction；
8th, treat after the completion of the back cover of cofferdam, disposably draw water, dry construction condition is formed in cofferdam, cofferdam inside is carried out clear
Reason, then carries out suspended deck structure construction.
General principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, various changes and modifications of the present invention are possible without departing from the spirit and scope of the present invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appending claims and its
Equivalent is defined.
Claims (8)
1. a kind of new type of deep-water combined steel plate pile cofferdam construction method, it is characterised in that：In cofferdam construction region inserting piling steel pile casting
(1), mounting structures are installed on the part that steel pile casting (1) surfaces, relies on the assembled first layer of mounting structures to enclose purlin, the is relied on
One layer is enclosed the assembled second layer of purlin and encloses purlin, is carried out successively, until all purlin (3) assembly of enclosing complete to be connected as overall structure, is cut off
The connection of mounting structures and steel pile casting (1), the hoisting platform integral hoisting relied at the top of steel pile casting (1) encloses purlin (3) to design position
Put and be fixed on steel pile casting (1), by the use of purlin (3) is enclosed as inserting piling steel sheet pile (2) is oriented to up to closing up into cofferdam, then
Suspended deck structure construction is carried out in cofferdam.
2. a kind of new type of deep-water combined steel plate pile cofferdam construction method as claimed in claim 1, it is characterised in that：Described applies
Work method comprises the following steps：
1), inserting piling steel pile casting (1) in cofferdam construction region, the periphery end face for the part surfaced in steel pile casting (1)
Upper installation mounting structures；
2), the assembly of support mounting structures is undermost encloses purlin (3), is enclosing welding inner supporting structure on the inside of purlin (3)；
3), rely on the undermost assembled layer second from the bottom of purlin (3) that encloses to enclose purlin and its inner supporting structure, carry out successively, until all
Enclose purlin (3) and inner supporting structure assembly complete；
4) hanging device, is set up in steel pile casting (1) upper end, the connection of mounting structures and steel pile casting (1) is cut off, purlin is enclosed in slow decentralization
(3) to design attitude, it then will enclose purlin (3) and be fixed together with steel pile casting (1)；
5), rely on and enclose purlin (3) to be oriented to inserting piling steel sheet pile (2), until closing up to form cofferdam structure；
6) back cover, is carried out to cofferdam bottom, once drawn water, suspended deck structure construction is then carried out.
3. a kind of new type of deep-water combined steel plate pile cofferdam construction method as claimed in claim 2, it is characterised in that：Described step
In rapid 1, the method that mounting structures are installed on the periphery end face for the part surfaced in steel pile casting (1) is：In steel pile casting
(1) support bracket (4) is installed on the part surfaced, support bracket (4) is weldingly fixed on what steel pile casting (1) surfaced
On partial periphery end face.
4. a kind of new type of deep-water combined steel plate pile cofferdam construction method as claimed in claim 2, it is characterised in that：Described step
In rapid 2, it is in the method for enclosing welding inner supporting structure on the inside of purlin (3)：Enclosing the interior weld horizontal diagonal brace (5) of purlin (3), horizontal brace
(6) cross bar (7), is welded between adjacent level stull (6) and forms the inner supporting structure for enclosing purlin.
5. a kind of new type of deep-water combined steel plate pile cofferdam construction method as claimed in claim 2, it is characterised in that：Described step
In rapid 3, rely on and undermost enclose that the assembled layer second from the bottom of purlin encloses purlin and its method for inner supporting structure is：Enclosed in orlop on purlin
Welding contact montant (8), then welds layer second from the bottom on contact montant (8) and encloses purlin, welded between layer second from the bottom encloses purlin
Inner supporting structure is connect, the assembled process that the second layer encloses purlin is completed.
6. a kind of new type of deep-water combined steel plate pile cofferdam construction method as claimed in claim 2, it is characterised in that：Described step
In rapid 3, the method for setting up hanging device in steel pile casting (1) upper end is：Bearing beam (13) is installed in steel pile casting (1) upper end, in bearing beam
(13) punching jack (12) is disposed on, by threaded fining twisted steel (14) is through punching jack (12) and encloses purlin (3)
It is fixedly connected.
7. a kind of new type of deep-water combined steel plate pile cofferdam construction method as claimed in claim 2, it is characterised in that：Described step
In rapid 3, slow decentralization encloses purlin (3) to the construction method of design attitude and is：Welded in purlin or its inner support in being enclosed for the superiors
Supporting steel plate (9), installs vertically arranged steel pipe (10) on supporting steel plate (9), and multiple steel pipes (10) are centered around steel pile casting
(1) outside, during decentralization, steel pipe (10) is fitted on the outside of steel pile casting (1) and plays guide effect.
8. a kind of new type of deep-water combined steel plate pile cofferdam construction method as claimed in claim 2, it is characterised in that：Described step
In rapid 3, will enclose the method that purlin (3) is fixed together with steel pile casting (1) is：Steel pile casting (1) surface it is upper correspondence the superiors
The position for enclosing purlin on welding support bracket (11), purlin (3) integrally decentralization is enclosed, until the superiors enclose on purlin or its inner support solid
Fixed steel pipe (10) lower end, which is shelved, to be fixed on support bracket (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710304363.8A CN106958253A (en) | 2017-05-03 | 2017-05-03 | A kind of new type of deep-water combined steel plate pile cofferdam construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710304363.8A CN106958253A (en) | 2017-05-03 | 2017-05-03 | A kind of new type of deep-water combined steel plate pile cofferdam construction method |
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| CN106958253A true CN106958253A (en) | 2017-07-18 |
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| CN201710304363.8A Pending CN106958253A (en) | 2017-05-03 | 2017-05-03 | A kind of new type of deep-water combined steel plate pile cofferdam construction method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110777825A (en) * | 2019-10-18 | 2020-02-11 | 安徽省路港工程有限责任公司 | Concrete back cover of deep water steel cofferdam and construction method thereof |
| CN111980019A (en) * | 2020-08-21 | 2020-11-24 | 中铁四局集团有限公司 | Construction method of steel pipe pile cofferdam for locking notch of main bridge bearing platform of super-large bridge |
| CN114319337A (en) * | 2021-12-15 | 2022-04-12 | 中铁二局第四工程有限公司 | Leakage stopping device for bored pile construction and bored pile construction method |
| CN114541442A (en) * | 2022-04-01 | 2022-05-27 | 中铁大桥局集团第五工程有限公司 | Method for mounting inner support of lock catch steel pipe or steel sheet pile cofferdam |
| CN115324087A (en) * | 2022-07-29 | 2022-11-11 | 中交路桥建设有限公司 | Deepwater rock-socketed combined light cofferdam |
| CN115387364A (en) * | 2022-07-29 | 2022-11-25 | 中交路桥建设有限公司 | Construction method of deep water rock-socketed combined light cofferdam |
| US20230002998A1 (en) * | 2021-07-05 | 2023-01-05 | Changsha University Of Science And Technology | Method for constructing steel sheet pile cofferdam on deep sand gravel overburden layer |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110777825B (en) * | 2019-10-18 | 2021-03-30 | 安徽省路港工程有限责任公司 | Concrete back cover of deep water steel cofferdam and construction method thereof |
| CN110777825A (en) * | 2019-10-18 | 2020-02-11 | 安徽省路港工程有限责任公司 | Concrete back cover of deep water steel cofferdam and construction method thereof |
| CN111980019A (en) * | 2020-08-21 | 2020-11-24 | 中铁四局集团有限公司 | Construction method of steel pipe pile cofferdam for locking notch of main bridge bearing platform of super-large bridge |
| US20230002998A1 (en) * | 2021-07-05 | 2023-01-05 | Changsha University Of Science And Technology | Method for constructing steel sheet pile cofferdam on deep sand gravel overburden layer |
| US11840817B2 (en) * | 2021-07-05 | 2023-12-12 | Changsha University Of Science And Technology | Method for constructing steel sheet pile cofferdam on deep sand gravel overburden layer |
| CN114319337A (en) * | 2021-12-15 | 2022-04-12 | 中铁二局第四工程有限公司 | Leakage stopping device for bored pile construction and bored pile construction method |
| CN114319337B (en) * | 2021-12-15 | 2023-10-13 | 中铁二局第四工程有限公司 | Plugging device for bored pile construction and bored pile construction method |
| CN114541442A (en) * | 2022-04-01 | 2022-05-27 | 中铁大桥局集团第五工程有限公司 | Method for mounting inner support of lock catch steel pipe or steel sheet pile cofferdam |
| CN114541442B (en) * | 2022-04-01 | 2023-12-22 | 中铁大桥局集团第五工程有限公司 | Installation method of lock catch steel pipe or steel sheet pile cofferdam inner support |
| CN115387364A (en) * | 2022-07-29 | 2022-11-25 | 中交路桥建设有限公司 | Construction method of deep water rock-socketed combined light cofferdam |
| CN115324087A (en) * | 2022-07-29 | 2022-11-11 | 中交路桥建设有限公司 | Deepwater rock-socketed combined light cofferdam |
| CN115387364B (en) * | 2022-07-29 | 2024-05-14 | 中交路桥建设有限公司 | Deep water rock-embedded combined light cofferdam construction method |
| CN115324087B (en) * | 2022-07-29 | 2024-05-14 | 中交路桥建设有限公司 | Deep water rock-socketed combined light cofferdam |
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Application publication date: 20170718 |