CN201272969Y - Guiding facility for putting down steel protection barrel in deep water torrent - Google Patents
Guiding facility for putting down steel protection barrel in deep water torrent Download PDFInfo
- Publication number
- CN201272969Y CN201272969Y CNU2008202110504U CN200820211050U CN201272969Y CN 201272969 Y CN201272969 Y CN 201272969Y CN U2008202110504 U CNU2008202110504 U CN U2008202110504U CN 200820211050 U CN200820211050 U CN 200820211050U CN 201272969 Y CN201272969 Y CN 201272969Y
- Authority
- CN
- China
- Prior art keywords
- steel
- steel casing
- guiding device
- guiding
- deep water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses a guiding device for releasing steel guard sleeves in deepwater and rapid flow, which comprises a steel jacket box of which the bottom plate is provided with a round hole fit with the outer diameter of steel guard sleeves, the top platform and the round hole of the steel jacket box are respectively provided with an upper and a lower guide device, wherein the lower guide device comprises a horn-form guide part and a first rolling wheel which are arranged at the edge of the round hole; the upper guide device comprises a limit part which is provided at the part of the top platform of the steel jacket box correspondingly to the round hole. The guiding device can directly release and position steel guard sleeves without using large steel cofferdams in deepwater and rapid flow to form static water, thereby saving engineering cost, reduce construction period and reduce construction difficulty.
Description
Technical field
The utility model belongs to the bridge foundation construction device, particularly a kind of guiding facility of transferring the steel casing in the deep water torrent.
Background technology
In the foundation construction of bridge deep water torrent, transferring all of foundation pile steel casing carried out in the hydrostatic in steel cofferdam in the past, thus the steel casing transfer, install more convenient, easy.But adopt steel cofferdam foundation construction cost height, long in time limit, difficulty of construction is big.Study that a kind of construction technology that does not need steel cofferdam also can directly transfer and locate foundation pile steel casing in the deep water torrent has significantly, important meaning.
The utility model content
The purpose of this utility model is to provide a kind of guiding facility of transferring the steel casing in the deep water torrent.Adopt the utility model facility to solve and in the deep water torrent, do not rely on huge steel cofferdam structure formation hydrostatic and directly transfer, locate the problem of steel casing, thereby save construction costs, reduction of erection time, reduce difficulty of construction.
Realize that the technical scheme that the utility model purpose adopts is: the guiding facility of transferring the steel casing in the deep water torrent, comprise the steel bushing case, on the steel bushing box plate, be provided with the circular hole that adapts with steel casing external diameter, on the top platform of steel bushing case, be respectively equipped with upper and lower guiding device with described circular hole limit, described down guiding device is the horn-like guiding parts and first roller that is arranged on the circular hole limit, and last guiding device is the limiting component that is located on the top platform of steel bushing case with the circular hole correspondence position.
The described guiding device of going up adopts second roller;
Described first, second roller adopts the arc that adapts with steel casing profile.
Guiding facility of the present utility model success utilization in the column foot plinth construction of yangtze river in nanjing three bridges south.The highrise pile cap form of cushion cap, foundation pile is adopted on the basis.Foundation pile adopts the steel casing to construct, and cushion cap adopts the steel bushing case to construct under water.In work progress, the base bits depth of water reaches 40m, and water velocity reaches 2.5m/s.Adopt this guiding facility directly to transfer 30 steel casings in current, steel casing plan-position and sag all satisfy plan and job specfication requirement.
The successful utilization of this guiding facility, show in the foundation construction of deep water torrent, do not utilize huge steel cofferdam to form the hydrostatic zone, but the method for directly transferring, installing foundation pile steel casing in torrent is feasible, thereby be in the deep water torrent, do not rely on the foundation construction that steel cofferdam carries out foundation pile, cushion cap form and created necessary condition.Do not utilize the deep water torrent foundation construction of huge facilities such as steel cofferdam, make the construction period short, cost is low, and makes construction simpler and safer.
The utility model is described in further detail below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 is the structural representation of the utility model guiding facility.
Fig. 2 is the following guiding device schematic diagram in the utility model guiding facility.
Fig. 3 is that the A-A of Fig. 2 is to view.
Fig. 4 is the simplification pattern diagram that the steel casing is transferred time supporting, limit method.
Fig. 5 is the schematic diagram of steel casing when transferring contraposition.
The specific embodiment
See Fig. 1 to Fig. 3, the utility model is transferred the guiding facility of steel casing in the deep water torrent, comprise steel bushing case 1, on steel bushing box plate 6, be provided with the circular hole 7 that adapts with steel casing 3 external diameters, on the top platform 2 of steel bushing case, be respectively equipped with upper and lower guiding device 4,5 with described circular hole 7 limits, circular hole 7 adopts stiffener to reinforce, described down guiding device 5 is for being arranged on the horn-like guide strip 51 and the steel roller 52 on circular hole 7 limits, and last guiding device 4 is the limiting component steel roller that is located on the top platform 2 of steel bushing case with circular hole 7 correspondence positions.Described roller all adopts the arc that adapts with steel casing profile.
The utility model is transferred the steel casing and is carried out according to the following steps in the deep water torrent:
1), makes steel bushing case coxopodite on the coast;
2), on steel bushing case coxopodite base plate, set in advance the circular hole that adapts with steel casing external diameter, horn-like guide strip is set on circular hole, and the arc roller is set on circular hole;
3), by transportation by driving, make steel bushing case coxopodite in place at the base bits place;
4), the splicing of finishing the steel bushing case on steel bushing case coxopodite connects height;
5), the position corresponding with circular hole is provided with limiting component steel arc roller on the platform of steel bushing box top;
6), make the steel bushing caisson sinking to the necessary degree of depth;
7), adopt anchorage system that the steel bushing case is accurately located and fixing in the plane;
8), on the steel bushing case, the steel casing is transferred through upper and lower guiding device and circular hole, utilize upper and lower guiding device clamping, guide effect is with steel casing location and sink to desired absolute altitude.
This guiding facility and method have solved effectively that in foundation construction steel casing is transferred, following five difficult problems in the position fixing process:
(1), the steel casing is transferred the assurance of positional precision in the process
Guarantee the precision of transferring of steel casing from two aspects.First aspect guarantees the precision that is provided with of upper and lower guiding device; Second aspect, transferring in the process of steel casing, guarantee that the steel casing is out of shape under water impact and displacement all in the precision allowed band.
1), guiding device is provided with accuracy guarantee
Following guiding device is installed before the water under steel bushing case coxopodite, can guarantee its installation accuracy.Last guiding device needs in being in water, carries out the steel bushing box top of splicing and installs, because the horizontal plane central axis difference of upper and lower guiding device setting-out institute foundation, then has the possibility of decentraction deviation.Lower guide is according to the axis setting-out of steel bushing case bottom level, and last guiding device is then according to the horizontal median axis setting-out of steel bushing box top.For overcoming deviation,, make steel bushing case top/bottom part axis overlapping in the plane identical by guaranteeing steel bushing case splicing precision.Under the identical in the plane situation preferably in axis, upper guide then can better be coincide with the plan-position of following guiding device, thereby can be guaranteed the installation of guiding device precision according to the axis setting-out of top steel bushing case.
2), distortion of steel casing and displacement control
Choose the degree of depth that sinks to of steel bushing case necessity, reduce and to transfer the jib-length that steel casing in the process is subjected to flow action, it is stressed to reduce system, thereby reduces distortion of steel casing and displacement.
Select necessary steel casing wall thickness, make the steel casing have enough non-deformabilities.
Enough powerful upper and lower guiding device is set, guarantees that it has the rigidity of enough anti-steel casing displacement.
(2), the stress balance of steel casing
By supporting, the position limiting structure of 4,5 pairs of steel casings 3 of upper and lower guiding device rationally are set, make steel casing 3 under the effect of water flow impact pressure F, can keep stress balance and stable.The simplification pattern of supporting, limit method was seen Fig. 4 when the steel casing was transferred.
(3), the local pressure of steel casing wallboard
By choosing the contact surface area of rational steel casing wall thickness, guiding facility and steel casing, guarantee that the local pressure and the distortion of steel casing wallboard meets stressed and deformation requirements.By shown in Figure 4 graphic, and consider the concrete shape of steel casing, analysis programs such as available ANSYS are carried out stressed and The deformation calculation.
(4), the contraposition of steel casing in the guiding facility of bottom
Owing to can not under steel bushing case coxopodite, in advance the steel casing be installed on the coxopodite before the water, because the deadweight of steel bushing case is too big like this, poor stability and transportation by driving difficulty.So generally at the steel bushing case after base bits splicing is finished, utilize the steel bushing case to transfer the steel casing again.So just there is the contraposition problem in the underwater guiding facility of steel casing.The method of dealing with problems is, horn-like guide strip 51 wide down narrow is set at the circular hole place on the steel bushing box plate 6 and is located at steel roller 52 on the circular hole 7, make on the water surface, steel casing 3 from the guiding device 4 that is arranged on the steel bushing box top platform 2 begins to transfer can enter in the circular hole 7 automatically along horn-like guide strip 51.Steel casing 3 is transferred alignment situation and is seen Fig. 5.
(5), steel casing overcoming frictional resistance in the sinking process
The steel casing is close to by water impact and guiding device in transferring process in the horizontal direction.Especially in following guiding device, steel casing and guiding device to contact extruding force bigger.Under the extruding force effect, the steel casing can be subjected to the obstruction of guiding device frictional resistance in transferring process, and it is transferred and will have some setbacks.When steel casing joint has the position of faulting of slab ends to pass through guiding device, the steel casing is stuck especially.For this reason, guiding device and steel casing contact site adopt roller structure, can improve the smoothness that the steel casing is transferred.Roller adapts to steel casing shape and is arranged to circular shape (referring to Fig. 3).
Claims (3)
1, a kind of guiding facility of in the deep water torrent, transferring the steel casing, comprise the steel bushing case, it is characterized in that also being included in the steel bushing box plate and be provided with the circular hole that adapts with steel casing external diameter, on the top platform of steel bushing case, be respectively equipped with upper and lower guiding device with described circular hole limit, described down guiding device is the horn-like guiding parts and first roller that is arranged on the circular hole limit, and last guiding device is the limiting component that is located on the top platform of steel bushing case with the circular hole correspondence position.
2, guiding facility of transferring the steel casing in the deep water torrent according to claim 1 is characterized in that the described guiding device of going up adopts second roller.
3, guiding facility of transferring the steel casing in the deep water torrent according to claim 1 and 2 is characterized in that described first, second roller adopts the arc that adapts with steel casing profile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202110504U CN201272969Y (en) | 2008-12-22 | 2008-12-22 | Guiding facility for putting down steel protection barrel in deep water torrent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202110504U CN201272969Y (en) | 2008-12-22 | 2008-12-22 | Guiding facility for putting down steel protection barrel in deep water torrent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201272969Y true CN201272969Y (en) | 2009-07-15 |
Family
ID=40883317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202110504U Expired - Lifetime CN201272969Y (en) | 2008-12-22 | 2008-12-22 | Guiding facility for putting down steel protection barrel in deep water torrent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201272969Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094429A (en) * | 2011-01-12 | 2011-06-15 | 广东省长大公路工程有限公司 | Lowering control method of double-wall steel cofferdam |
| CN104032743A (en) * | 2014-05-21 | 2014-09-10 | 中铁大桥局集团第一工程有限公司 | Steel casing placing-down and inserting-driving method on deepwater, rapids and inclined rock face conditions |
| CN104762965A (en) * | 2015-03-23 | 2015-07-08 | 中铁大桥局集团有限公司 | Concrete frog anchor for locating large-scale steel open caisson foundation and construction method |
| CN111139848A (en) * | 2020-01-02 | 2020-05-12 | 中铁二局第五工程有限公司 | Steel cofferdam and assembling method thereof |
-
2008
- 2008-12-22 CN CNU2008202110504U patent/CN201272969Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094429A (en) * | 2011-01-12 | 2011-06-15 | 广东省长大公路工程有限公司 | Lowering control method of double-wall steel cofferdam |
| CN102094429B (en) * | 2011-01-12 | 2012-08-22 | 广东省长大公路工程有限公司 | Lowering control method of double-wall steel cofferdam |
| CN104032743A (en) * | 2014-05-21 | 2014-09-10 | 中铁大桥局集团第一工程有限公司 | Steel casing placing-down and inserting-driving method on deepwater, rapids and inclined rock face conditions |
| CN104762965A (en) * | 2015-03-23 | 2015-07-08 | 中铁大桥局集团有限公司 | Concrete frog anchor for locating large-scale steel open caisson foundation and construction method |
| CN111139848A (en) * | 2020-01-02 | 2020-05-12 | 中铁二局第五工程有限公司 | Steel cofferdam and assembling method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11143027B2 (en) | Rectangular working well with preset pipe jacking hole and sliding back wall in water-rich stratum and construction method thereof | |
| CN103741657B (en) | The construction method of large-sized multifunction waterborne traffic accident | |
| CN109487822B (en) | Method for installing and adjusting steel pipe column in reverse construction and control device | |
| CN201272969Y (en) | Guiding facility for putting down steel protection barrel in deep water torrent | |
| CN103132537A (en) | Steel latticed column homocentric-square-shaped concrete bearing platform combination type tower crane base structure and construction method | |
| CN104032743B (en) | Steel pile casting under deep water, torrent and inclined rock base condition transfers inserted to play method | |
| CN112627172B (en) | Pile forming system and construction method for large-diameter cast-in-situ bored pile in karst area | |
| CN106223354B (en) | The construction method of shallow foundation stay in place form | |
| CN102767178B (en) | Stand column pile and construction method thereof | |
| CN110820765A (en) | Prefabricated enclosure structure for narrow deep foundation pit and construction method | |
| CN103866693A (en) | Installing method of reinforced concrete bowstring rod arch bridge arch ribs and hanging auxiliary bridge | |
| CN102493487A (en) | Method for constructing foundation slab embedded with concrete supports | |
| CN202866304U (en) | Reverse-building-method steel pipe column bottom locating device | |
| CN101936009A (en) | Deep-water single-wall steel hanging box cofferdam and construction method thereof | |
| CN103321212A (en) | One-column-one-pile post inserting method construction process | |
| CN201560398U (en) | Inner steel mould for accurately positioning tower column cable sleeves of cable-stayed bridge | |
| CN113774936A (en) | Floating transportation, positioning and sinking construction method for double-wall steel cofferdam with pile foundation firstly and cofferdam secondly | |
| CN203034476U (en) | Tower crane base structure in type of combination of steel latticework columns and concrete bearing platform shaped like Chinese character 'hui' | |
| CN104912093A (en) | Deepwater pile foundation positioning and guiding structure and construction method | |
| CN203113515U (en) | Slip form jacking integrated device | |
| CN203834809U (en) | Steel pipe column structure for steel pipe column concrete side pouring method | |
| CN1904226A (en) | Construction method of recoverable brad wall base pit enclosure | |
| CN204385743U (en) | A kind of pile foundation in deep water steel pile casting construction system | |
| CN204690772U (en) | A kind of pile foundation in deep water location, guide frame | |
| CN211851153U (en) | Combined steel column type GPS observation pier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 410004 Hunan province Changsha Yuhua District of Shaoshan City Road No. 239 Patentee after: Hunan Road & Bridge Construction Group Co., Ltd. Address before: 410004 Hunan province Changsha Yuhua District of Shaoshan City Road No. 239 Patentee before: Hunan Road & Bridge Construction Group Corp. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20090715 |
|
| CX01 | Expiry of patent term |