CN205917702U - Whole system of transferring of bridge deep basal pit steel sheet piling cofferdam internal stay - Google Patents
Whole system of transferring of bridge deep basal pit steel sheet piling cofferdam internal stay Download PDFInfo
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- CN205917702U CN205917702U CN201620581362.9U CN201620581362U CN205917702U CN 205917702 U CN205917702 U CN 205917702U CN 201620581362 U CN201620581362 U CN 201620581362U CN 205917702 U CN205917702 U CN 205917702U
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- internal stay
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- girder
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 44
- 239000010959 steel Substances 0.000 title claims abstract description 44
- 238000010276 construction Methods 0.000 claims abstract description 46
- 239000000725 suspension Substances 0.000 claims abstract description 22
- 238000005096 rolling process Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims 2
- 238000005755 formation reaction Methods 0.000 claims 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 19
- 230000000694 effects Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract 2
- 235000017491 Bambusa tulda Nutrition 0.000 abstract 2
- 241001330002 Bambuseae Species 0.000 abstract 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract 2
- 239000011425 bamboo Substances 0.000 abstract 2
- 238000007689 inspection Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 102100000672 SMPX Human genes 0.000 description 1
- 108060007673 SMPX Proteins 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 230000003014 reinforcing Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000001360 synchronised Effects 0.000 description 1
- 238000004642 transportation engineering Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The utility model discloses a whole system of transferring of bridge deep basal pit steel sheet piling cofferdam internal stay for cofferdam construction technical field, including internal stay, a plurality of section of thick bamboo and suspension system of protecting, the internal stay is including enclosing the purlin and establishing the in -connection system in enclosing the purlin, and the internal stay sets up two -layerly at least, adopts vertical connection system to connect between adjacent two -layer internal stay, and the outside surface that the internal stay encloses the purlin forms the spigot surface of inserting dozen steel sheet pile, protects to be equipped with on the section of thick bamboo and to put up the bracket of transferring the internal stay that puts in place. The construction is enclosed purlin, in -connection system and the installation earlier of vertical connection system, then is carried out whole and transfer to the designed elevation during steel sheet piling cofferdam, has avoided conventional construction to use the successive layer to draw water and has supported and connect the great potential safety hazard that the method that is was brought in the installation. Simultaneously, the connection condition at each position of inspection that also can be more convenient to reach risk control's effect. The utility model discloses the simple easily operation of construction process, assurance operation personal security and construction quality that can bigger effect shorten construction cycle, save construction cost.
Description
Technical field
This utility model is used for cofferdam construction technical field, more particularly to a kind of bridge deep foundation ditch steel plate pile cofferdam internal stay
Overall lowering system.
Background technology
The application of China's deep water foundation starts from the 1950's, from key dimension, using in terms of material, version etc.
Narration deep water foundation development and 3 stages of the main experience of application, that is, tube caisson foudations, well foundation and bored pile foundation,
Composite foundation and special basis.Steel sheet-pile cofferdam is the deep water foundation cofferdam construction technology of current very advantageous, in Line for Passenger Transportation
It is widely used with High-Speed Railway Bridge Construction.Its design and calculation method is mostly based on simplification and calculates and engineering experience；Cofferdam
Construction technology it is critical only that the aspects such as space orientation, the quick inserting piling of ultra-deep steel sheet pile and sealing, by cofferdam construction process
Monitor in real time, reasonability, the stress grasping in time cofferdam and the deformation of construction effect and design can be checked, to construction
The abnormal conditions of middle appearance take measures.
Conventional steel sheet pile cofferdam construction method: surveying setting-out, clear up steel sheet pile, remove surrounding drilling platform, close
Weld bracket on the guide pile of cushion cap side, first inner support is installed and guides as steel sheet pile inserting piling and enclose purlin, inserting piling fixing steel plate stake,
Inserting piling steel sheet pile, to closing up, draws water in cofferdam, and setting reinforcing is enclosed purlin and supported, and encloses purlin quantity according to the setting of actual design situation, encloses
It is filled to water level outside cofferdam in weir consistent, inhale mud under water and pour bottom concrete, reach after design strength after bottom concrete,
Chisel pile crown, construction bearing platform and pier shaft, Cast-in-situ Piles in Sand-filling, earth mixtures between cushion cap and steel sheet pile space, top casting concrete Guan Liang,
After concrete Guan Liang reaches intensity, remove lower floor's inner support, in cofferdam, continue to be filled to water level outside cofferdam, remove upper strata Nei Zhi
Support, finally pulls out steel sheet pile.
The shortcoming of prior art:
Grand bridge deepwater foundation construction conventionally employed routine inserting piling steel sheet pile, the shortcoming of setting Wei Lin mode organizing construction:
1. its sequence of construction is usually: inserting piling steel sheet pile, draws water, and arranges inner support, inhales mud under water, pours back cover coagulation
Soil, construction bearing platform, remove inner support, pull out steel sheet pile.All using this construction technology during project's earlier stage construction, its shortcoming is work
Sequence very complicated, difficulty of construction is big, long construction period；
2. it is layered installation inner support of drawing water, there is head difference (interior external water pressure is uneven) inside and outside steel cofferdam, be susceptible to
Cofferdam deformation even collapse accident, safety coefficient is low；
3. the operation of complexity and operating mode, the manpower and materials of the Force Calculation work and cofferdam observation that increase steel cofferdam are thrown
Enter；
4. loaded down with trivial details technological process considerably increases workmen and puts into, and construction cost is high.
By conventional site operation statistical result showed, using traditional inserting piling steel sheet pile, Wei Lin mode organizing construction is set,
The deep water steel sheet-pile cofferdam construction period of one about 2 layers of inner support reaches 90 days about, with cofferdam depth and the inner support number of plies
Continue to increase, its draw water layering install inner support difficulty of construction, safety management risk all will with increase, construct input cost
Also accordingly increase.
Utility model content
For solving the above problems, this utility model provides a kind of bridge deep foundation ditch steel plate pile cofferdam internal stay integrally to transfer system
System, has notable spy convenient to assemble and disassemble, simple to operate, safe and reliable, short construction period using this system construction steel sheet-pile cofferdam
Point.
This utility model solves its technical problem and be the technical scheme is that in a kind of bridge deep foundation ditch steel plate pile cofferdam
The overall lowering system of support, some casings including internal stay, being located in deep foundation pit construction region and be located at described casing top and can
The hangar system that internal stay is transferred along casing, internal stay include by each casing be centered around in enclose purlin and enclose in purlin described in being located at
Connect system, described internal stay setting at least two-layer, connected using the vertical system that connects between adjacent two layers internal stay, internal stay encloses the outside table of purlin
Face forms the spigot surface of inserting piling steel sheet pile, and described casing is provided with the bracket of the sustainable internal stay being put into position of staying.
It is further used as the improvement of technical solutions of the utility model, described hangar system includes transverse strands located at casing top
Girder, the suspension centre being located at girder two ends and the suspension rod located at described suspension centre, the lower end of described suspension rod connects internal stay, and top sets
Put anchor beam, girder is provided with the jack of anchor beam described in liftable.
It is further used as the improvement of technical solutions of the utility model, described girder is by multigroup beret truss using flower window connection group
Become, between girder and casing and girder is respectively provided with spacing fixed structure in the outside of suspension centre.
Be further used as the improvement of technical solutions of the utility model, described suspension rod adopts finish rolling deformed bar, on girder in
The both sides of suspension rod respectively set a jack.
It is further used as the improvement of technical solutions of the utility model, described interior connection system includes some groups and is located at each casing two
It is provided with inside the diagonal brace of side, diagonal brace and/or internal stay and can prop up casing side wall to guide the guider of internal stay decentralization.
It is further used as the improvement of technical solutions of the utility model, described casing is provided with above bracket detachable
Temporary support bracket, the platform for lining of internal stay is formed on the top of temporary support bracket.
The beneficial effects of the utility model: conventional water Steel Sheet Pile cofferdam construction is that workman is layered after steel sheet pile inserting piling
Draw water in the internal Site Welding inner support in cofferdam and connect system, generally so construction has greater risk, and water pressure is made entirely
Being used in encloses above purlin, easily causes and encloses purlin deformation even cofferdam and collapse.During using this utility model construction steel sheet-pile cofferdam, enclose
Purlin, interior connection system and the vertical system that connects first install, and then carry out entirety using hangar system and transfer to designed elevation, then with internal stay
Outside carries out steel sheet pile inserting piling as posting, it is to avoid conventional steel sheet pile cofferdam construction usage successively draw water installation inner support and
Connect the larger potential safety hazard that the method for system is brought.Meanwhile, the connection at each position also can more easily be checked, thus reaching
The effect of risk control.This utility model working procedure is simply easily operated, can bigger effect guarantee operating personnel safety and
Construction quality, shortens construction period, saves construction cost.
Brief description
The utility model is described in further detail below in conjunction with the accompanying drawings:
Fig. 1 is using this utility model inserting piling steel sheet pile structural representation；
Fig. 2 is this utility model hangar system structural representation；
Fig. 3 is sectional view at a-a in Fig. 2；
Fig. 4 is this utility model casing, bracket and encloses purlin mated condition schematic diagram.
Specific embodiment
Referring to figs. 1 to Fig. 4, that show the concrete structure of the preferred embodiment of this utility model.Below will specifically
Construction featuress of each element of bright this utility model, and during if there are being described to direction (upper and lower, left and right, before and after), be with
Structure shown in Fig. 1 is with reference to description, but actually used direction of the present utility model is not limited thereto.
This utility model provides a kind of bridge deep foundation ditch steel plate pile cofferdam internal stay entirety lowering system, including internal stay, sets
Some casings 1 in deep foundation pit construction region and be located at described casing 1 top and the hanging system that internal stay can be transferred along casing 1
System 2, internal stay include by each casing 1 be centered around in enclose purlin 31 and enclose the interior connection system in purlin 31 described in being located at, enclose purlin 31 basis
Pile cap shape is designed as rectangle, and the described interior system that connects includes some groups of diagonal braces 32 being located at four casing 1 both sides in turning, diagonal brace 32
And/or be provided with inside internal stay 31 can prop up casing 1 side wall with guide internal stay decentralization guider.Described internal stay setting at least two
Layer, between adjacent two layers internal stay, to connect be 33 connections using vertical, and the outer surface that internal stay encloses purlin 31 forms leading of inserting piling steel sheet pile 4
To face, described casing 1 is provided with the bracket 11 of the sustainable internal stay being put into position of staying.On described casing 1 above bracket 11
It is provided with detachable temporary support bracket, temporary support bracket corresponding internal stay setting multilamellar, the top of temporary support bracket is formed
The platform for lining of internal stay.
During using this utility model construction steel sheet-pile cofferdam, internal stay adopts field fabrication, that is, in the spelling of temporary support bracket
Bilayer or three layers of internal stay are respectively welded on assembling platform, setting guider is fastened in the interior connection in internal stay simultaneously, then using hanging
Extension system 2 decentralization internal stay is to bracket 11.Subsequently just can enclose the outer surface of purlin 31 as spigot surface, complete steel sheet pile 4 inserting piling.
This utility model avoids conventional steel sheet pile cofferdam construction usage and successively draws water to install inner support and connect the method for system and brings
Larger potential safety hazard.Meanwhile, the connection at each position also can more easily be checked, thus reaching the effect of risk control.This
Utility model working procedure is simply easily operated, can guarantee operating personnel's safety of bigger effect and construction quality, shorten construction
In the cycle, save construction cost.
Wherein, described hangar system 2 include the girder located at casing 1 top for the transverse strands, be located at the suspension centre at girder two ends with
And the suspension rod located at described suspension centre, using finish rolling deformed bar 21, the lower end connection internal stay of described suspension rod, top sets described suspension rod
Put anchor beam 22, girder is provided with the jack 23 of anchor beam 22 described in liftable.Described girder is by multigroup beret truss 24 using flower window
Connect composition, between girder and casing 1 and girder is respectively provided with spacing fixed structure 5 in the outside of suspension centre, it is to avoid girder and hanging
Bar is shifted over.On girder, the both sides in suspension rod respectively set a jack 23.
During hangar system 2 decentralization internal stay, carry out scale mark in hangar system finish rolling deformed bar 21, using jack 23
Jacking will be enclosed purlin and integrally be hung vacantly, and flying height range estimation and temporary support bracket produce gap, stand 3-5 minute, with
When check that connecting in hanging structure and levels is whether weld seam normal, checks and removes temporary support bracket after finishing.Recycle
Jack 23 overall decentralization cofferdam inner support structure, decentralization every time is highly controlled by 15cm, is commanded by special messenger at four suspension centres
And keeping synchronous, decentralization uneven highness change in corner is within 5mm.Bracket is installed at designed elevation, by internal stay by hanging
System is changed to bracket 11, completes inner support decentralization.
Certainly, the invention is not limited to above-mentioned embodiment, and those of ordinary skill in the art are without prejudice to this
Equivalent variations or replacement also can be made, these equivalent modifications or replacement are all contained in the application on the premise of utility model spirit
In claim limited range.
Claims (6)
1. a kind of bridge deep foundation ditch steel plate pile cofferdam internal stay entirety lowering system it is characterised in that: include internal stay, be located at deep basal pit
Some casings in construction area and be located at described casing top and the hangar system that can transfer internal stay along casing, internal stay includes
By each casing be centered around in enclose purlin and enclose interior connection system in purlin described in being located at, described internal stay setting at least two-layer, adjacent two
The vertical system that connects is adopted to connect between layer internal stay, internal stay encloses the spigot surface of the outer surface formation inserting piling steel sheet pile of purlin, described casing
It is provided with the bracket of the sustainable internal stay being put into position of staying.
2. bridge deep foundation ditch steel plate pile cofferdam according to claim 1 internal stay entirety lowering system it is characterised in that: described
Hangar system includes the girder located at casing top for the transverse strands, is located at the suspension centre at girder two ends and hanging located at described suspension centre
Bar, the lower end of described suspension rod connects internal stay, and top arranges anchor beam, and girder is provided with the jack of anchor beam described in liftable.
3. bridge deep foundation ditch steel plate pile cofferdam according to claim 2 internal stay entirety lowering system it is characterised in that: described
Girder by multigroup beret truss using flower window connect form, between girder and casing and girder be respectively provided with the outside of suspension centre spacing
Fixed structure.
4. bridge deep foundation ditch steel plate pile cofferdam according to claim 2 internal stay entirety lowering system it is characterised in that: described
Suspension rod adopts finish rolling deformed bar, and on girder, the both sides in suspension rod respectively set a jack.
5. bridge deep foundation ditch steel plate pile cofferdam according to claim 1 internal stay entirety lowering system it is characterised in that: described
Interior connect system include some groups of diagonal braces being located at each casing both sides, be provided with inside diagonal brace and/or internal stay can prop up casing side wall with
The guider of guiding internal stay decentralization.
6. bridge deep foundation ditch steel plate pile cofferdam according to claim 1 internal stay entirety lowering system it is characterised in that: described
Detachable temporary support bracket is provided with above bracket on casing, the assembly of the top formation internal stay of temporary support bracket is put down
Platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620581362.9U CN205917702U (en) | 2016-06-15 | 2016-06-15 | Whole system of transferring of bridge deep basal pit steel sheet piling cofferdam internal stay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620581362.9U CN205917702U (en) | 2016-06-15 | 2016-06-15 | Whole system of transferring of bridge deep basal pit steel sheet piling cofferdam internal stay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205917702U true CN205917702U (en) | 2017-02-01 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620581362.9U Expired - Fee Related CN205917702U (en) | 2016-06-15 | 2016-06-15 | Whole system of transferring of bridge deep basal pit steel sheet piling cofferdam internal stay |
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| CN (1) | CN205917702U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109267492A (en) * | 2018-10-17 | 2019-01-25 | 中铁大桥局集团有限公司 | A kind of operation platform connection structure mounting device and method |
| CN110670611A (en) * | 2019-09-29 | 2020-01-10 | 中铁四局集团第二工程有限公司 | Inner support assembly type multilayer integral installation method for deep water foundation steel sheet pile cofferdam |
| 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 |
| CN113737790A (en) * | 2021-06-28 | 2021-12-03 | 中交第二航务工程局有限公司 | Bridge pile and steel sheet pile synchronous construction method |
| CN114277817A (en) * | 2021-12-17 | 2022-04-05 | 中铁广州工程局集团有限公司 | Construction method for integrally and synchronously laying multi-layer large-tonnage inner supports in cofferdam |
| CN114517486A (en) * | 2022-03-15 | 2022-05-20 | 中铁上海工程局集团第五工程有限公司 | Construction method of underwater cofferdam |
-
2016
- 2016-06-15 CN CN201620581362.9U patent/CN205917702U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109267492A (en) * | 2018-10-17 | 2019-01-25 | 中铁大桥局集团有限公司 | A kind of operation platform connection structure mounting device and method |
| CN109267492B (en) * | 2018-10-17 | 2021-04-06 | 中铁大桥局集团有限公司 | Construction platform connection system installation device and method |
| CN110670611A (en) * | 2019-09-29 | 2020-01-10 | 中铁四局集团第二工程有限公司 | Inner support assembly type multilayer integral installation method for deep water foundation steel sheet pile cofferdam |
| 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 |
| CN113737790A (en) * | 2021-06-28 | 2021-12-03 | 中交第二航务工程局有限公司 | Bridge pile and steel sheet pile synchronous construction method |
| CN114277817A (en) * | 2021-12-17 | 2022-04-05 | 中铁广州工程局集团有限公司 | Construction method for integrally and synchronously laying multi-layer large-tonnage inner supports in cofferdam |
| CN114517486A (en) * | 2022-03-15 | 2022-05-20 | 中铁上海工程局集团第五工程有限公司 | Construction method of underwater cofferdam |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170201 Termination date: 20210615 |