CN101906781A - Hooping type steel sheet pile cofferdam platform and integrated construction method depending on cofferdam platform - Google Patents
Hooping type steel sheet pile cofferdam platform and integrated construction method depending on cofferdam platform Download PDFInfo
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- CN101906781A CN101906781A CN 201010252937 CN201010252937A CN101906781A CN 101906781 A CN101906781 A CN 101906781A CN 201010252937 CN201010252937 CN 201010252937 CN 201010252937 A CN201010252937 A CN 201010252937A CN 101906781 A CN101906781 A CN 101906781A
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Abstract
The invention relates to a hooping type steel sheet pile cofferdam platform and an integrated construction method depending on the cofferdam platform. Fillers are filled in the inner space of a cofferdam; at least two circles of steel tendons are arranged around the periphery of the cofferdam; one end of each steel tendon is fixed on an anchor bearing plate at the fixed end through an anchor device at the fixed end, and the other end of each steel tendon is fixed on an anchor bearing plate at the stretching end through an anchor device at the stretching end; and the steel tendons also pass through a positioning ring which is fixed at the convex part of the periphery of a steel sheet pile. By additionally providing facilities and measures for reinforcing the steel sheet pile cofferdam, the construction of the underwater pile foundation can be finished only depending on the steel sheet pile cofferdam required for the platform construction under the condition that a waterborne overhead pile drilling platform does not need to be arranged, and the integrated construction of the platform can be finished only depending on the steel sheet pile cofferdam arranged in the construction of the underwater pile foundation without additionally arranging a steel sheet pile cofferdam. The method of the invention has the advantages of saving the overall cost of the engineering, shortening the construction period, reducing the unsafe factors in construction, saving the energy, reducing the emission, and the like. The invention can be widely applied to construction of engineering, such as underwater bridges, wharfs, and the like.
Description
Technical field
The present invention relates to the operation platform and the job practices of a kind of water king-pile and cushion cap, the integral construction method of particularly a kind of hooping type steel sheet pile cofferdam platform and depending on cofferdam platform.
Background technology
Construction for pile foundation in the water of engineering structures such as bridge, harbour, traditional method generally is overhead type waterborne to be set bore the stake platform, rely on overhead type brill stake platform to construct at present, after pile foundation is finished construction, must remove earlier overhead type and bore a stake platform, could launch the construction of cushion cap then; Adopt the method construction that steel sheet-pile cofferdam is set and cushion cap is normal, but steel sheet-pile cofferdam only limits to be used for the construction at substructure positions such as cushion cap or pier shaft; Because the construction of pile foundation waterborne and cushion cap etc. relies on facility ununified, must cause the wasting of resources to a certain extent; The duration that construction and dismounting overhead type brill stake platform take is longer, has also extended the duration accordingly; The cost of boring stake platform itself is bigger, has increased the engineering overall cost again; Adopt overhead type to bore the method construction stake basis of stake platform, belong to the over-water construction method, construction unsafe factor (dangerous matter sources) is more; The construction unsafe factor (dangerous matter sources) of construction and dismounting overhead type brill stake platform is more, also expends certain energy, and certain pollution is arranged.
Summary of the invention
The integral construction method that the purpose of this invention is to provide a kind of hooping type steel sheet pile cofferdam platform and depending on cofferdam platform, solve the cofferdam internal pressure of using in deepwater regions of bearing is prestress steel sheet pile cofferdam technical problem main, outsourcing constraint formula; And the problem of solution stake and cushion cap integrated construction.
For achieving the above object, the present invention adopts following technical scheme: a kind of hooping type steel sheet pile cofferdam platform, comprise one group of intensive cofferdam of enclosing of steel sheet pile and inner supporting body system, inner supporting body system is supported on the inboard, cofferdam, the root of described steel sheet pile extends below the substrate of cofferdam, the top of steel sheet pile is higher than the water surface, the mutual interlock of the adjacent side of adjacent steel sheet pile, inner space, described cofferdam is filled with filler, ring cofferdam periphery has a circle steel bundle at least, the one end is fixed on the fixed end anchor plate by the fixed end ground tackle, and the other end is fixed on the stretch-draw end anchor plate by stretch-draw end ground tackle, and described steel bundle also passes the locating ring that is fixed on steel sheet pile periphery protruding part.
The filling scope of described filler be from the bottom of the riverbed to more than the water surface.
Described inner supporting body system comprise inner bracing piece and in enclose purlin, enclose the purlin hoop in described at the cofferdam inwall, its bottom surface is welded with triangle steel and supports, and the inwall upper support has inner bracing piece, and described inner bracing piece is vertical inner bracing piece and laterally inner bracing piece or vertically inner bracing piece and oblique inner bracing piece.
Poling road in the described locating ring, described steel bundle passes pipeline.
Described pipeline is or/and the straight or bending in one week back around the cofferdam of steel beam ring, and bending part adds steering gear.
Described pipeline is plastic pipe, metal tube or polymer pipe, and pressure injection has antirust oil, cement paste or chemical sizwe in it.
Described steel bundle is steel strand or wire rope.
Described fixed end anchor plate is positioned at below the stretch-draw end anchor plate, and staggers.
A kind of integral construction method that relies on described hooping type steel sheet pile cofferdam platform, step is as follows: step 1 sets steel sheet-pile cofferdam on every side along the cap design of pile position.
Described step 8 is in the prestressed increase simultaneously of the steel bundle of removing the periphery, cofferdam or do not increase inner bracing piece.
Compared with prior art the present invention has following characteristics and beneficial effect: at first, the mentioned steel sheet pile cofferdam platform of the present invention has the function of brill stake platform waterborne, but construction stake basis in the above is equivalent to construct on land; After this kind platform is excavated inner packing material, has the function in cofferdam in traditional water again.
Secondly, the integrated stake of the mentioned support steel sheet pile cofferdam platform of the present invention and the job practices of cushion cap, can realize the construction of pile foundation and uniting two into one of bearing platform construction, can simplify working procedure, save engineering overall cost and duration, and reach the job practices of energy-saving and emission-reduction purpose to a certain extent.
In addition, the mentioned method of the present invention reduces construction unsafe factor (dangerous matter sources), applied range, environment is not had extra pollution.
The present invention has overcome the shortcoming that conventional piles and cushion cap are constructed respectively, has solved by being arranged on the peripheral hoop of country rock prestressed strand and has realized the prestress steel sheet pile cofferdam technical problem of outsourcing constraint formula.
The present invention can be widely used in being applicable to the construction of depth of water 8m with pile foundation and cushion cap in the water of various engineering structures such as bridge pier in the interior water, is suitable for the suitable geological condition that sets steel sheet pile, is suitable for the little hydrologic regime of wave.
Description of drawings
The present invention will be further described in detail below in conjunction with accompanying drawing.
Fig. 1 is the embodiment of the invention one floor map.
Fig. 2 is the embodiment of the invention two floor map.
Fig. 3 is Figure 1A-A or Fig. 2 B-B sectional drawing.
Fig. 4 is the outer facade partial schematic diagram of steel sheet pile.
Fig. 5 is Fig. 4 C-C sectional drawing.
Fig. 6 is Fig. 4 D-D sectional drawing.
Fig. 7 is Fig. 4 E-E sectional drawing.
Fig. 8 is steel sheet pile, locating ring, pipeline, steel bundle plane connection detail drawing.
Fig. 9 is the job practices flow chart.
Figure 10 is the pile foundation construction schematic diagram.
Figure 11 is a pile cap construction schematic diagram.
Reference numeral: enclose purlin, the horizontal inner bracing piece of 4-, the vertical inner bracing piece of 5-, the oblique inner bracing piece of 6-, 7-filler, 8-pipeline, 9-steel bundle, 10-locating ring, 11-steering gear, 12-fixed end ground tackle, 13-fixed end anchor plate, 14-stretch-draw end ground tackle, 15-stretch-draw end anchor plate, 16-support, 17-pile foundation, 18-temporary bridge for construction, 19-cushion cap in the 1-water surface, 2-steel sheet pile, the 3-.
The specific embodiment
Embodiment is referring to shown in Fig. 1～8, a kind of hooping type steel sheet pile cofferdam platform, comprise one group of steel sheet pile, 2 intensive cofferdam of enclosing and inner supporting body system, inner supporting body system is supported on the inboard, cofferdam, the root of described steel sheet pile 2 extends below the substrate of cofferdam, the top of steel sheet pile 2 is higher than the water surface 1, the mutual interlock of the adjacent side of adjacent steel sheet pile, inner space, described cofferdam is filled with filler 7, ring cofferdam periphery has a circle steel bundle 9 at least, the one end is fixed on fixed end anchor plate 13 by fixed end ground tackle 12, and the other end is fixed on the stretch-draw end anchor plate 15 by stretch-draw end ground tackle 14, and described steel bundle 9 also passes the locating ring 10 that is fixed on steel sheet pile periphery protruding part.The filling scope of described filler 7 be from the bottom of the riverbed to the water surface more than 1.Described inner supporting body system comprise inner bracing piece and in enclose purlin 3, enclose purlin 3 hoops in described at the cofferdam inwall, its bottom surface is welded with triangle steel and supports 16, the inwall upper support has inner bracing piece, and described inner bracing piece is vertical inner bracing piece 5 and laterally inner bracing piece 4 or vertically inner bracing piece 5 and oblique inner bracing piece 6.
When the prestressing force of needs is big, poling roads 8 in the described locating ring 10, described steel bundle 9 passes pipeline 8.
Described pipeline 8 is or/and steel bundle 9 complete finishing around the straight or bending in cofferdam one week back in design elevation all, and bending part adds steering gear 11.Described pipeline 8 is plastic pipe, metal tube or polymer pipe, and pressure injection has antirust oil, cement paste or chemical sizwe to protect the steel bundle simultaneously with the convenient steel bundle of removing after finishing construction in it.Described steel bundle 9 is steel strand or wire rope.Described fixed end anchor plate 13 is positioned at below the stretch-draw end anchor plate 15, and staggers.
A kind of integral construction method that relies on described hooping type steel sheet pile cofferdam platform, referring to Fig. 9～11, step is as follows: step 1 sets steel sheet-pile cofferdam on every side along the cap design of pile position.
Described step 8 is in the prestressed increase simultaneously of the steel bundle of removing the periphery, cofferdam or do not increase inner bracing piece.
Compare explanation in the advantage aspect economy and duration by concrete case history and conventional method about of the present invention.
Compare with conventional method, the present invention only increased placement steel bundle, apply and fill filler in steel bundle prestressing force, the cofferdam, remove steel bundle prestressing force, excavate filler, remove 6 operations such as steel bundle, but reduced 10 operations that are provided with and remove overhead type brill stake waterborne platform, added up to and reduce by 4 operations; Aspect the duration, apply and fill the constructional materials operation in steel bundle sequence of prestressing and the cofferdam, remove steel bundle sequence of prestressing and excavate the packing material operation and all can parallelly carry out, removing steel bundle operation can carry out during bearing platform construction, do not take the independent duration, can not consider, therefore, the duration that the operation that increases takies shortened dramatically than the duration that is provided with, removes brill stake platform waterborne, the brill stake platform that is 432m2 with depth of water 3m, built on stilts highly (being the platform free height) 4.8m, area is that the example tabulation is compared, detailed being shown in Table 1.
Table 1 duration is list (unit: the sky) relatively
Compare with conventional method, the present invention has only increased the expense of steel Shu Dingwei and fastening devices, steel bundle expense, the mud jacking expense, item such as packing material expense, for bigger bridge pier, the steel sheet pile consumption need not increase, even also can save, for less bridge pier, because satisfy the needs in pile foundation construction space, steel sheet pile may increase, and still, method of the present invention has been saved the great expense that overhead type that conventional method need be provided with bores the stake platform, always by comparison, it is clearly that cost is saved, still with depth of water 3m, built on stilts height (being the platform free height) 4.8m, area is that the brill stake platform of 432m2 is that the example tabulation is compared, detailed being shown in Table 2.
Table 2 economy is roughly estimated relatively list (unit: unit)
Claims (10)
1. hooping type steel sheet pile cofferdam platform, comprise intensive cofferdam of enclosing of one group of steel sheet pile (2) and inner supporting body system, inner supporting body system is supported on the inboard, cofferdam, the root of described steel sheet pile (2) extends below the substrate of cofferdam, the top of steel sheet pile (2) is higher than the water surface (1), the mutual interlock of the adjacent side of adjacent steel sheet pile, it is characterized in that: inner space, described cofferdam is filled with filler (7), ring cofferdam periphery has a circle steel bundle (9) at least, the one end is fixed on fixed end anchor plate (13) by fixed end ground tackle (12), the other end is fixed on the stretch-draw end anchor plate (15) by stretch-draw end ground tackle (14), and described steel bundle (9) also passes the locating ring (10) that is fixed on steel sheet pile periphery protruding part.
2. hooping type steel sheet pile cofferdam platform according to claim 1 is characterized in that: the filling scope of described filler (7) be from the bottom of the riverbed to more than the water surface (1).
3. hooping type steel sheet pile cofferdam platform according to claim 1, it is characterized in that: described inner supporting body system comprise inner bracing piece and in enclose purlin (3), enclose purlin (3) hoop in described at the cofferdam inwall, its bottom surface is welded with triangle steel and supports (16), the inwall upper support has inner bracing piece, and described inner bracing piece is vertical inner bracing piece (5) and laterally inner bracing piece (4) or vertically inner bracing piece (5) and oblique inner bracing piece (6).
4. hooping type steel sheet pile cofferdam platform according to claim 1 is characterized in that: described locating ring (10) interior poling road (8), described steel bundle (9) passes pipeline (8).
5. hooping type steel sheet pile cofferdam platform according to claim 4 is characterized in that: described pipeline (8) or/and steel bundle (9) around the straight or bending in cofferdam one week back, bending part adds steering gear (11).
6. hooping type steel sheet pile cofferdam platform according to claim 4 is characterized in that: described pipeline (8) is plastic pipe, metal tube or polymer pipe, and pressure injection has antirust oil, cement paste or chemical sizwe in it.
7. hooping type steel sheet pile cofferdam platform according to claim 4 is characterized in that: described steel bundle (9) is steel strand or wire rope.
8. hooping type steel sheet pile cofferdam platform according to claim 4 is characterized in that: described fixed end anchor plate (13) is positioned at below the stretch-draw end anchor plate (15), and staggers.
9. integral construction method that relies on any described hooping type steel sheet pile cofferdam platform in the claim 1～8, it is characterized in that: step is as follows:
Step 1 sets steel sheet-pile cofferdam on every side along the cap design of pile position;
Step 2, while draw water set up steel sheet-pile cofferdam in enclose purlin (3) and inner bracing piece;
Step 3 is provided with locating ring (10) in the steel sheet-pile cofferdam periphery, fixed end anchor plate (13) and stretch-draw end anchor plate (14);
Step 4, in locating ring (10), wear steel bundle (9), steel Shu Yiduan is fixed on the fixed end anchor plate (13) by fixed end ground tackle (12), the other end is fixed on the stretch-draw end anchor plate (15) by stretch-draw end ground tackle (14), and by the stretch-draw instrument steel sheet-pile cofferdam is applied inside prestressing force, banding steel sheet-pile cofferdam;
Step 5, on one side steel sheet-pile cofferdam is applied prestressing force, on one side to filling constructional materials in the steel sheet-pile cofferdam to more than the water surface absolute altitude, the operation platform that in steel sheet-pile cofferdam, forms;
Step 6 is set up the temporary bridge for construction that is used for personnel and transport of materials on the bank to the peripheral waters of steel sheet-pile cofferdam;
Step 7 is on operation platform construction stake basis (17);
Step 8, finish pile foundation construction after, the filler in excavating the cofferdam (7) is simultaneously to removing the steel bundle prestressing force of steel sheet-pile cofferdam periphery;
Step 9, the cushion cap (19) of in steel sheet-pile cofferdam, constructing;
Step 10, cushion cap (19) construction finishes, and removes steel sheet-pile cofferdam.
10. according to the integral construction method of the described support hooping type steel sheet pile cofferdam platform of claim 9, it is characterized in that: described step 8 is in the prestressed increase simultaneously of the steel bundle of removing the periphery, cofferdam or do not increase inner bracing piece.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010252937XA CN101906781B (en) | 2010-08-13 | 2010-08-13 | Hooping type steel sheet pile cofferdam platform and integrated construction method depending on cofferdam platform |
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| CN201010252937XA CN101906781B (en) | 2010-08-13 | 2010-08-13 | Hooping type steel sheet pile cofferdam platform and integrated construction method depending on cofferdam platform |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103882881A (en) * | 2014-04-11 | 2014-06-25 | 山东黄河工程集团有限公司 | Underwater construction method for bearing platform deeply embedded in rock |
| CN103993612A (en) * | 2014-05-16 | 2014-08-20 | 湖北宏联众轻钢结构房屋有限公司 | Underwater concrete bearing platform building method |
| CN104775425A (en) * | 2013-10-23 | 2015-07-15 | 叶长青 | Construction method for expansion body pile with high bearing capacity |
| CN105040715A (en) * | 2015-07-29 | 2015-11-11 | 黑龙江省龙建路桥第三工程有限公司 | Method for building bridge construction cofferdam through steel sheet piles |
| CN105133627A (en) * | 2015-07-28 | 2015-12-09 | 安徽省新路建设工程集团有限责任公司 | Construction method for single-wall steel sheet pile cofferdam in running water state |
| CN105970983A (en) * | 2016-06-13 | 2016-09-28 | 中交第二航务工程局有限公司 | Cast-in-place concrete diversion cofferdam with non-bottom steel sleeve boxes and construction method thereof |
| CN110453704A (en) * | 2019-08-02 | 2019-11-15 | 中交第二航务工程局有限公司 | A kind of marine anchorage construction combined type cofferdam structure of large size and its construction method |
| CN111022764A (en) * | 2019-12-29 | 2020-04-17 | 中铁五局集团第二工程有限责任公司 | Dry construction method for water diversion pipe water-land adapter |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104775425B (en) * | 2013-10-23 | 2016-09-07 | 叶长青 | A kind of construction method of high-bearing capacity expansion pile |
| CN104775425A (en) * | 2013-10-23 | 2015-07-15 | 叶长青 | Construction method for expansion body pile with high bearing capacity |
| CN103882881A (en) * | 2014-04-11 | 2014-06-25 | 山东黄河工程集团有限公司 | Underwater construction method for bearing platform deeply embedded in rock |
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| CN103993612B (en) * | 2014-05-16 | 2016-02-10 | 湖北宏联众轻钢结构房屋有限公司 | A kind of construction method of underwater concrete cushion cap |
| CN105133627A (en) * | 2015-07-28 | 2015-12-09 | 安徽省新路建设工程集团有限责任公司 | Construction method for single-wall steel sheet pile cofferdam in running water state |
| CN105040715A (en) * | 2015-07-29 | 2015-11-11 | 黑龙江省龙建路桥第三工程有限公司 | Method for building bridge construction cofferdam through steel sheet piles |
| CN105040715B (en) * | 2015-07-29 | 2019-06-14 | 黑龙江省龙建路桥第三工程有限公司 | Bridge construction cofferdam method is done using steel sheet pile |
| CN105970983A (en) * | 2016-06-13 | 2016-09-28 | 中交第二航务工程局有限公司 | Cast-in-place concrete diversion cofferdam with non-bottom steel sleeve boxes and construction method thereof |
| CN105970983B (en) * | 2016-06-13 | 2018-10-16 | 中交第二航务工程局有限公司 | A kind of bottomless steel jacket box cast-in-place concrete diversion cofferdam and its construction method |
| CN110453704A (en) * | 2019-08-02 | 2019-11-15 | 中交第二航务工程局有限公司 | A kind of marine anchorage construction combined type cofferdam structure of large size and its construction method |
| CN111022764A (en) * | 2019-12-29 | 2020-04-17 | 中铁五局集团第二工程有限责任公司 | Dry construction method for water diversion pipe water-land adapter |
| CN111022764B (en) * | 2019-12-29 | 2021-07-20 | 中铁五局集团第二工程有限责任公司 | Dry construction method for water diversion pipe water-land adapter |
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| CN101906781B (en) | 2011-09-21 |
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