CN108005095A - A kind of three side combined cofferdam of offshore region - Google Patents
A kind of three side combined cofferdam of offshore region Download PDFInfo
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- CN108005095A CN108005095A CN201711319141.XA CN201711319141A CN108005095A CN 108005095 A CN108005095 A CN 108005095A CN 201711319141 A CN201711319141 A CN 201711319141A CN 108005095 A CN108005095 A CN 108005095A
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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
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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
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Abstract
The invention discloses a kind of three side combined cofferdam of offshore region, the three side combined cofferdams of the present invention efficiently solve offshore water cofferdam construction under tidewater and complicated geological limitation, shallow embedding area steel sheet pile tilt greatly hard scar because inserting piling is difficult enter rock depth deficiency caused by cofferdam stabilization and the problem of poor water resistance；It is big to tilt half-naked rock and with silt coating junction targetedly use concrete+steel sheet pile construction method so that overall cofferdam water proofing property and stability greatly improve, it can effectively accelerate underwater structure construction speed and cost-effective.
Description
Technical field：
The present invention relates to aouatic structure thing construction field, more particularly to a kind of three side combined cofferdam of offshore region.
Background technology：
With the continuous development of Chinese infrastructure, cofferdam construction extensively should as underwater structure construction temporary structure
For in the engineering constructions such as bridge, harbour and harbour, wherein steel sheet-pile cofferdam with easy construction, plasticity is strong, water resistance is good
Generally used.
When construction, The turbulent river crashes its way through, tidewater height difference is big in waters, construction area for offshore water and there are big inclination angle semi-nudity rock, cover
Cap rock by shallow and deep when complicated geological environment, the construction of conventional steel sheet pile cofferdam can caused by the naked rock in the big inclination angle in shallow embedding area inserting piling
Difficult and embedded depth deficiency, causes shallow embedding region lithosphere and silt coating joining place water proofing property and stability poor, makes
Into constructional difficulties, influence engineering overall progress.
The content of the invention：
The technical problem to be solved by the invention is to provide a kind of three side combined cofferdam of offshore region, it is intended to solves offshore
Big inclination angle semi-nudity rock, coating are by conventional steel sheet pile cofferdam constructional difficulties in shallow and deep complicated geological environment, waterproof and steady
Qualitative the problems such as cannot be guaranteed.
In order to solve the above-mentioned technical problem, the present invention is achieved by the following technical solutions：
A kind of three side combined cofferdam of offshore region, by the following method construction are obtained, the described method comprises the following steps：
Two rows of parallel outside steel-pipe piles are installed on basement rock, the steel pipe on the inside of installation on basement rock and riverbed bottom cladding layer
Stake, the " u "-shaped that inner side steel-pipe pile forms opening towards basement rock direction are arranged；
Corbel is set on steel-pipe pile and inner side steel-pipe pile on the outside, is set respectively on the corbel on the inside of every row outside steel-pipe pile
Interior leading truck, sets the outer leading truck of " u "-shaped, corbel on the outside between outside steel-pipe pile and inner side steel-pipe pile on the corbel of steel-pipe pile
Setting height be higher than back cover concrete to be poured height；
The inserting piling steel sheet pile between interior leading truck and outer leading truck or on the outside of interior leading truck along interior leading truck；
Pour offshore concrete wall, one end of interior leading truck and outer leading truck, part steel sheet pile insertion offshore concrete within the walls, at two
Installation installs inner supporting structure to pull-up structure on any two side of outer leading truck on interior leading truck；
Back cover concrete is poured, pulls out outside steel-pipe pile 5 ' and inner side steel-pipe pile 5.
Preferably, three side combined cofferdam of offshore region of the invention, before offshore concrete wall is poured, in addition to pacifies on basement rock
Plug the anchor bar into basement rock.
Preferably, three side combined cofferdam of offshore region of the invention, steel sheet pile include being partially submerged into above basement rock
The shallow embedding area steel sheet pile of offshore concrete wall, is inserted into the shallow embedding area steel sheet pile extending on basement rock and the insertion river of riverbed bottom cladding layer
Bed bottom cladding layer does not extend into buried area's steel sheet pile on basement rock, is set on the shallow embedding area steel sheet pile of the part embedded offshore concrete wall
It is equipped with anchor bar.
Preferably, three side combined cofferdam of offshore region of the invention, is less than the back cover concrete on shallow embedding area steel sheet pile
Altitude range in set back cord, pull system is arranged on the back cord and be fixed on inner side steel-pipe pile.
Preferably, three side combined cofferdam of offshore region of the invention, the back cord inner side are provided with rubber mat plate.
Preferably, three side combined cofferdam of offshore region of the invention, the inner supporting structure include leading truck in connection
The oblique support plate on two adjacent sides of leading truck in the allotment fagging of two relative edges and connection.
Preferably, three side combined cofferdam of offshore region of the invention, inner supporting structure pass through with interior leading truck, offshore concrete wall
Steel plate connects.
Compared with prior art, the invention has the beneficial effects that：Three side of the steel sheet pile+concrete walls combination of the present invention is enclosed
Weir construction method efficiently solves offshore water cofferdam construction under tidewater and complicated geological limitation, and shallow embedding area steel sheet pile is tilting greatly
Hard scar because inserting piling is difficult enter rock depth deficiency caused by cofferdam stabilization and the problem of poor water resistance；It is big to tilt half
Naked rock and silt coating junction targetedly use concrete+steel sheet pile construction method to cause overall cofferdam water proofing property and surely
It is qualitative to greatly improve, it can effectively accelerate underwater structure construction speed and cost-effective.
Brief description of the drawings：
The present invention is further described below in conjunction with the accompanying drawings.
Fig. 1 is the side view of the three side combined cofferdam of offshore water of an embodiment of the present invention；
Fig. 2 is the top view of the three side combined cofferdam of offshore water of an embodiment of the present invention.
In figure：1st, concrete wall；2nd, shallow embedding area insertion concrete wall steel sheet pile；2 ', shallow embedding area steel sheet pile；3rd, buried area's steel sheet pile；4、
Back cover concrete；5th, outside steel-pipe pile；5 ', inner side steel-pipe pile；6th, corbel；7th, outer leading truck；7 ', interior leading truck；8th, anchor bar；9、
Back cord；10th, to pull system；11st, inner supporting structure.
Embodiment：
The present invention will be described in detail with reference to the accompanying drawings and detailed description.
Embodiment one
The present embodiment provides a kind of three side combined cofferdam of offshore region, construction by the following method obtains, the method bag
Include following steps：
S1：Two rows of parallel outside steel-pipe piles 5 ' are installed on basement rock, on basement rock and riverbed bottom cladding layer in installation
Side steel-pipe pile 5, the " u "-shaped that inner side steel-pipe pile 5 forms opening towards basement rock direction are arranged；
S2：Corbel 6 is set on steel-pipe pile 5 ' and inner side steel-pipe pile 5 on the outside, in the corbel 6 on the inside of every row outside steel-pipe pile 5
Upper leading truck 7 in setting respectively, is set on the corbel 6 of steel-pipe pile 5 ' between outside steel-pipe pile 5 ' and inner side steel-pipe pile 5 on the outside
The outer leading truck 7 ' of " u "-shaped, the setting height of corbel 6 are higher than the height of back cover concrete 4 to be poured；
S3：Along interior leading truck 7 between interior leading truck 7 and outer leading truck 7 ' or 7 outside inserting piling steel sheet pile of interior leading truck；
S4：Pour one end, a part steel sheet pile (at least steel plate for offshore concrete wall 1, interior leading truck 7 and outer leading truck 7 '
Stake) it is embedded in offshore concrete wall 1, installation is to pull-up structure 10 on two interior leading trucks 7, on any two side of outer leading truck 7 '
Inner supporting structure 11 is installed；
S5：Back cover concrete 4 is poured, outside steel-pipe pile 5 ' is pulled out and inner side steel-pipe pile 5 completes construction, obtained structure such as Fig. 1
Shown in Fig. 2.
As an improvement before offshore concrete wall 1 is poured, in addition to the anchor bar 8 of basement rock is inserted into installation on basement rock.
Steel sheet pile includes the shallow embedding area steel sheet pile 2 for being partially submerged into offshore concrete wall 1 above basement rock, and insertion riverbed bottom is covered
The shallow embedding area steel sheet pile 2 ' extending on basement rock of cap rock and insertion riverbed bottom cladding layer do not extend into buried area on basement rock
Steel sheet pile 3, is provided with anchor bar 8 on the shallow embedding area steel sheet pile 2 of the part embedded offshore concrete wall 1.
Shallow embedding area steel sheet pile 2 ' above less than back cord 9 is set in the altitude range of the back cover concrete 4, sets pull system 10
Put on the back cord 9 and be fixed on inner side steel-pipe pile 5 '.
The inner side of back cord 9 is provided with rubber mat plate.
The inner support 11 includes the allotment fagging of two relative edges of leading truck 7 ' and leading truck 7 in connection in connection
The oblique support plate on two adjacent sides.
Inner supporting structure 11 is connected with interior leading truck 7 ', concrete wall 1 by steel plate.
Embodiment two
The present embodiment provides a kind of three side combined cofferdam structure of offshore region, such as Fig. 1 or 2, including：
The vertical cofferdam of twice away from bank and the cofferdam along the river in the vertical cofferdam of connection twice parallel to bank；It is described perpendicular
Straight cofferdam includes offshore concrete wall 1 and is partially submerged into the shallow embedding area insertion concrete wall steel sheet pile 2 of offshore concrete wall 1, the covering of insertion riverbed bottom
The shallow embedding area steel sheet pile 2 ' of floor, cofferdam is the buried area's steel sheet pile 3 for being inserted into riverbed bottom cladding layer along the river, and the cofferdam bottom is
Back cover concrete 4；
Insertion concrete wall steel sheet pile 2 outside in shallow embedding area is provided with some outside steel-pipe piles 5 being set up in parallel, the outside steel pipe
Corbel 6 is provided with stake 5, outer leading truck 7, the shallow embedding area insertion concrete wall steel sheet pile 2, shallow embedding area are provided with the corbel 6
Steel sheet pile 2 ' is along and through outer 7 inserting piling of leading truck；
Shallow embedding area insertion concrete wall steel sheet pile 2, shallow embedding area steel sheet pile 2 ', the inner side of buried area's steel sheet pile 3 be provided with it is some side by side
The inner side steel-pipe pile 5 ' of setting, the inner side steel-pipe pile 5 ' are provided with corbel 6, the beam at the position higher than 4 height of back cover concrete
Interior leading truck 7 ' is provided with support 6, buried area's steel sheet pile 3 passes through the interior inserting piling of leading truck 7 '；
One end of the interior leading truck 7 ' and outer leading truck 7 is embedded in offshore concrete wall 1, and two interior leading trucks 7 ' are above provided with
To pull-up structure 10, inner supporting structure 11 is connected with any two side of the outer leading truck 7.
Preferably, the anchor bar 8 of insertion basement rock is installed, offshore concrete wall 1 is cast on anchor bar 8 on basement rock.
Preferably, shallow embedding area steel sheet pile 2 ' in the altitude range of the back cover concrete 4 above less than back cord 9 is set, to drawing
System 10 is arranged on the back cord 9 and is fixed on the steel-pipe pile 5 ' of inner side.
Preferably, the inner side of back cord 9 is provided with rubber mat plate.
Preferably, the inner supporting structure 11 includes the allotment fagging of two relative edges of leading truck 7 ' and connection in connection
The oblique support plate on two adjacent sides of interior leading truck 7 '.
Preferably, inner supporting structure 11 is connected with interior leading truck 7 ', offshore concrete wall 1 by steel plate.
The three side combined cofferdam construction method of steel sheet pile+concrete walls of the present embodiment is big for offshore semi-nudity rock angle of inclination
And coating is had good effect by shallow and deep complicated geological environment, solve shallow embedding area steel sheet pile in similar complicated geological and enclose
Weir because inserting piling is difficult, water proofing property caused by inserting piling depth deficiency, stability and it is overall by force difference the problems such as；After the completion of cofferdam, knot
Structure internal force is largely conducted oneself with dignity by concrete wall and frictional force undertakes, and stress is simple, clear and definite.
It is emphasized that：It the above is only presently preferred embodiments of the present invention, not the present invention made in any form
Limitation, every any simple modification, equivalent change and modification for being made to above example of technical spirit according to the present invention,
In the range of still falling within technical solution of the present invention.
Claims (7)
- A kind of 1. three side combined cofferdam of offshore region, it is characterised in that by the following method construction obtain, the described method includes with Lower step：Two rows of parallel outside steel-pipe piles (5 ') are installed on basement rock, the steel pipe on the inside of installation on basement rock and riverbed bottom cladding layer Stake (5), the " u "-shaped that inner side steel-pipe pile (5) forms opening towards basement rock direction are arranged；Corbel (6), the corbel of steel-pipe pile (5) outside on the inside of every row are set on steel-pipe pile (5 ') and inner side steel-pipe pile (5) on the outside (6) on respectively set in leading truck (7 '), on the outside on the corbel (6) of steel-pipe pile (5 ') outside steel-pipe pile (5 ') with inner side steel pipe " u "-shaped outer leading truck (7) is set between stake (5), and the setting height of corbel (6) is higher than the height of back cover concrete (4) to be poured；Along interior leading truck (7 ') between interior leading truck (7 ') and outer leading truck (7) or interior leading truck (7 ') on the outside of inserting piling steel plate Stake；Pour one end, the part steel sheet pile insertion offshore concrete wall (1) of offshore concrete wall (1), interior leading truck (7 ') and outer leading truck (7) It is interior, installed on two interior leading trucks (7 ') to pull-up structure (10), inner support is installed on any two side of outer leading truck (7) Structure (11)；Back cover concrete (4) is poured, outside steel-pipe pile (5 ') is pulled out and inner side steel-pipe pile (5) completes construction.
- 2. three side combined cofferdam of offshore region according to claim 1, it is characterised in that before offshore concrete wall (1) is poured, Also include the anchor bar (8) of the installation insertion basement rock on basement rock.
- 3. three side combined cofferdam of offshore region according to claim 1, it is characterised in that steel sheet pile is included on basement rock The shallow embedding area steel sheet pile (2) for being partially submerged into offshore concrete wall (1) of side, is inserted into the shallow embedding extending on basement rock of riverbed bottom cladding layer Area's steel sheet pile (2 ') and insertion riverbed bottom cladding layer do not extend into buried area's steel sheet pile (3), the part insertion on basement rock Anchor bar (8) is provided with the shallow embedding area steel sheet pile (2) of offshore concrete wall (1).
- 4. according to three side combined cofferdam of claim 1-3 any one of them offshores region, it is characterised in that shallow embedding area steel Less than back cord (9) is set in the altitude range of the back cover concrete (4) on sheet pile (2 '), the back cord is arranged on to pull system (10) (9) on and be fixed on inner side steel-pipe pile (5 ').
- 5. three side combined cofferdam of offshore region according to claim 4, it is characterised in that set on the inside of the back cord (9) There is rubber mat plate.
- 6. according to three side combined cofferdam of claim 1-5 any one of them offshores region, it is characterised in that the inner support knot Structure (11) two including leading truck (7 ') in the allotment fagging of two relative edges of leading truck (7 ') in connection and connection is adjacent The oblique support plate on side.
- 7. three side combined cofferdam of offshore region according to claim 6, it is characterised in that inner supporting structure (11) is led with interior Connected to frame (7 '), offshore concrete wall (1) by steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711319141.XA CN108005095A (en) | 2017-12-12 | 2017-12-12 | A kind of three side combined cofferdam of offshore region |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711319141.XA CN108005095A (en) | 2017-12-12 | 2017-12-12 | A kind of three side combined cofferdam of offshore region |
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| Publication Number | Publication Date |
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| CN108005095A true CN108005095A (en) | 2018-05-08 |
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| CN201711319141.XA Pending CN108005095A (en) | 2017-12-12 | 2017-12-12 | A kind of three side combined cofferdam of offshore region |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113737829A (en) * | 2021-07-30 | 2021-12-03 | 中铁十九局集团第五工程有限公司 | Steel sheet pile and concrete wall combined cofferdam structure and construction method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094425A (en) * | 2010-12-24 | 2011-06-15 | 中铁六局集团有限公司 | Foundation pit construction method adopting shallow buried depth Larsen steel plate pile as protective cofferdam |
| CN104196034A (en) * | 2014-09-18 | 2014-12-10 | 中建交通建设集团有限公司 | Foundation pit construction method employing steel sheet piles as support cofferdam |
| CN104929142A (en) * | 2015-07-09 | 2015-09-23 | 中国水利水电第七工程局有限公司 | Combined cofferdam structure and building construction method thereof |
| CN104947698A (en) * | 2015-07-09 | 2015-09-30 | 中国水利水电第七工程局有限公司 | Construction method for steel sheet pile cofferdam on underwater exposed bedrock |
| CN106320351A (en) * | 2016-08-25 | 2017-01-11 | 中铁四局集团有限公司 | Construction method for small-spacing long-large underwater sheet steel pile cofferdams |
-
2017
- 2017-12-12 CN CN201711319141.XA patent/CN108005095A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094425A (en) * | 2010-12-24 | 2011-06-15 | 中铁六局集团有限公司 | Foundation pit construction method adopting shallow buried depth Larsen steel plate pile as protective cofferdam |
| CN104196034A (en) * | 2014-09-18 | 2014-12-10 | 中建交通建设集团有限公司 | Foundation pit construction method employing steel sheet piles as support cofferdam |
| CN104929142A (en) * | 2015-07-09 | 2015-09-23 | 中国水利水电第七工程局有限公司 | Combined cofferdam structure and building construction method thereof |
| CN104947698A (en) * | 2015-07-09 | 2015-09-30 | 中国水利水电第七工程局有限公司 | Construction method for steel sheet pile cofferdam on underwater exposed bedrock |
| CN106320351A (en) * | 2016-08-25 | 2017-01-11 | 中铁四局集团有限公司 | Construction method for small-spacing long-large underwater sheet steel pile cofferdams |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113737829A (en) * | 2021-07-30 | 2021-12-03 | 中铁十九局集团第五工程有限公司 | Steel sheet pile and concrete wall combined cofferdam structure and construction method |
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Application publication date: 20180508 |
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