CN202492854U - Foundation platform structures of deepwater bare rock and karstic piles - Google Patents
Foundation platform structures of deepwater bare rock and karstic piles Download PDFInfo
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- CN202492854U CN202492854U CN2012201048593U CN201220104859U CN202492854U CN 202492854 U CN202492854 U CN 202492854U CN 2012201048593 U CN2012201048593 U CN 2012201048593U CN 201220104859 U CN201220104859 U CN 201220104859U CN 202492854 U CN202492854 U CN 202492854U
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Abstract
The utility model discloses foundation platform structures of deepwater bare rock and karstic piles. The foundation platform structures comprise steep pipe piles directly located on the bare rock on a riverbed and pile foundation steel protection barrels. Each pile foundation steel protection barrel is located between every two steel pipe piles, tops of the steel pipe piles are fixedly connected with I45 a I-beam horizontal and vertical beams, and the I 45 a I-beam horizontal and vertical beams are connected with Beiley beams. Tops of the Beiley beams are provided with I 14 I-beams, and anti-skidding steel plates are paved on the tops of the I 14 I-beams. The foundation platform structures of the deepwater bare rock and the karstic piles further comprise a steel sleeve box which surrounds all the steel pipe piles and the pile foundation steel protection barrels and is filled with underwater concrete. All the steel pipe piles, the pile foundation steel protection barrels and riverbed bare rock are solidified through the concrete to form an over-all structure. The foundation platform structures of the deepwater bare rock and the karstic piles adopt the steel pipe piles as 'bench' ground jacks and supports, and adopt the Beiley beams and the horizontal and vertical I-beams as construction platforms. To achieve the connection of the steel pipe ground jacks and a riverbed bare rock surface, the construction of 'artificial rock' foundation and the installation of the steel sleeve box are crucial processes for bottom filling by concrete.
Description
Technical field
The utility model relates to the bridge construction structure, and this structure is specially adapted to cross over railway, the construction of highway bridge deep water foundation of reservoir, river, bay, influence navigation, and construction ground is naked rock, Xie Yan, solution cavity district bad geological section constructing structure at the bottom of the riverbed.
Background technology
According to the geology drilling data, at present, it is adverse geological condition such as naked rock that the bridge location district that has exists at the bottom of lapies, solution cavity, corrosion fissure, the riverbed.Grow like pier place karst erosion, be mainly lapies, the corrosion fissure of vertical growth, it is many under the face of land within the 6m-25m that karst is grown the degree of depth; Generally on top 4 to 6 meters grow lapies, little solution cavity etc., its down 6 to 15 meters a large amount of corrosion fissures are arranged, have lapies, solution cavity, corrosion fissure etc.; Local stake position exists lapies, solution cavity to gang up each other; Rich groundwater in the hole, bigger to the rock mass strength influence, difficulty of construction is bigger.
The utility model content
To the defective that exists in the prior art, the utility model provides a kind of expansion stiffener.This concrete structure has effectively been controlled the generation in ready mix concrete super-long structural construction period crack, has improved structure durability.Both can solve the concrete shrinkage crack problem that causes because of structure is long, can avoid again because of the ater-casting be detained long, be difficult to handle and cause split, ooze hidden danger, its mass effect is comparatively obvious.
For realizing above-mentioned purpose, the utility model technical scheme is:
The basic platform structure of the naked rock of deep water, karst stake, this structure comprise steel pipe pile and the pile foundation steel casing that directly drops on the exposed basement rock in riverbed, and described pile foundation steel casing is positioned in the middle of the steel pipe pile; The beam connection is fixing in length and breadth with i iron at the top of said steel pipe pile, and this I i iron beam in length and breadth is connected with Bei Leiliang, and shellfish thunder back portion is provided with i iron, and checkered plates is laid at this i iron top.
Further, also include the steel bushing case of whole steel pipe piles of encirclement and pile foundation pile foundation steel casing, pouring underwater concrete in this steel bushing case, this concrete is consolidated into an overall structure with all steel pipe piles and all exposed basement rock of pile foundation pile foundation steel casing and riverbed.
Further, the part that surfaces of steel pipe pile connects fixing with bridging.
Further, described pile foundation steel casing is made up of the inwall steel casing that an outer wall steel casing and is arranged in this outer wall steel casing.
The usefulness of technique scheme is:
The utility model is made " stool " supporting leg with steel pipe pile and is supported, Bei Leiliang and i iron in length and breadth beam as operation platform.In order to solve the connectivity problem of the naked scar of steel pipe pile supporting leg and riverbed, execute work " people's lithogenesis " basis, be provided with and the steel bushing case be installed as concrete back cover critical process." double-walled steel casing " that the utility model adopts used in the naked rock of deep water, karst pile foundation construction technology; Connect between the bed scour surface layer when having guaranteed the pile foundation boring construction; Not spillage, boring smoothly during boring, concrete is not scurried hole, not broken pile in the underwater concrete filling process; Control pile foundation construction quality, the integrality and the bearing capacity of assurance pile foundation.
Description of drawings
Fig. 1 is the utility model stool shape steel platform master TV structure sketch map;
Fig. 2 is the utility model stool shape steel platform side TV structure sketch map;
Fig. 3 is the utility model stool shape steel platform plan structure sketch map;
Fig. 4 is that the utility model steel bushing case is installed main TV structure sketch map;
Fig. 5 is the utility model steel bushing case installation side TV structure sketch map;
Fig. 6 is that the utility model steel bushing case is installed the plan structure sketch map.
The specific embodiment
Combine accompanying drawing and embodiment that the utility model is described at present.
Like the basic platform structure of Fig. 1,2, the naked rock of the deep water shown in 3, karst stake, this structure comprises the steel pipe pile 2 and pile foundation steel casing 3 that directly drops on the exposed basement rock 1 in riverbed, and described pile foundation steel casing 3 is positioned in the middle of the steel pipe pile 2.Before burying pile foundation steel casing 3 underground, earlier with block stamp dash at place, stake position one than pile foundation steel casing 3 greatly, the hole of about deeply 1m, descend pile foundation steel casing 3 again, with the fixing pile foundation steel casing 3 of the method concrete perfusion of pouring underwater concrete or throwing back-up sand bag.The top of said steel pipe pile 2 with the i iron of I45a in length and breadth beam 4 connect fixingly, this I45a i iron beam 4 in length and breadth is connected with shellfish thunder beam 5, shellfish thunder sheet group is installed in the I45a i iron in length and breadth on the beam 4; And utilize U-bolt to be connected with shellfish thunder beam 5; Bei Leiliang group is several confirms back installation sheet number according to the load checking computations, during installation group with organize between in Bei Leiliang 5 junctions be set horizontal the connection, shellfish thunder beam 5 tops are provided with I14 i iron 6; Spacing is that 60cm lays; Thick 12mm checkered plates 7 is laid at these I14 i iron 6 tops, forms the steel platform of a stool shape, draws anchor all around.The utility model steel pipe pile 2 adopts the supporting leg form of ￠ 800mm, vertical 4 rows, and horizontal 2 rows are provided with; Steel pipe pile 2 wall thickness are 12mm; The supporting leg spacing is provided with according to stake footpath and drilling construction platform space, and the supporting leg part that surfaces connects with bridging and fixes, and guarantees the resistance to overturning of supporting leg.
Like Fig. 4,5, shown in 6, because the steel pipe pile supporting leg of steel " stool " directly drops on the intectate naked rock river bed fastness globality poor stability.In order to solve the solidification problem of the exposed bedrock surface in steel pipe pile supporting leg and riverbed; The utility model is provided with the steel bushing case 8 of whole steel pipe piles 2 of an encirclement and pile foundation steel casing 3; Pouring underwater concrete 9 in this steel bushing case 8, this concrete 9 is consolidated into an overall structure with all steel pipe piles 2 and all pile foundation steel casings 3 with the exposed basement rock 1 in riverbed.In perfusion casing 8 before the underwater concrete, pile foundation steel casing 3 also must first in place fixing, and makes pile foundation steel casing 3 also be wrapped in the concrete 9, can effectively solve at the bottom of the pile foundation steel casing in the riverbed basement rock place because of combining the problem of bad generation spillage.
Like Fig. 3, shown in 6, contact well with pile foundation steel casing 3 for guaranteeing naked scar, consider that scar is uneven, before burying the steel casing underground, earlier with impact machine at place, stake position towards one bigger than pile foundation steel casing 3, but be not less than the hole of 25cm, about deeply 1m.Outer wall steel casing 31 is installed earlier; The usefulness method of concrete perfusion is under water poured into the 50cm concrete in outer wall steel casing; From steel casing slit, emerge when making " people's lithogenesis " concrete back cover, so intensity reached at 75% o'clock after the making of pile foundation steel casing than more than the big 25cm of Pile Foundations Design radius, was treated the completion of " people's lithogenesis " bottom concrete; Inwall steel casing 32 is installed in outer wall steel casing 31 internal drillings of " having planted stake " more, forms the crucial difficult problem of " double-walled steel casing " technical solution.
" the outer wall steel casing " of the utility model installed before the underwater concrete in the perfusion casing, makes pile foundation steel casing also be wrapped in the concrete, can effectively solve at the bottom of the pile foundation steel casing in the riverbed basement rock place because of combining the problem of bad generation spillage.' inwall steel casing ' installed when the pile foundation drilling construction; Mainly solve technical problems such as karst region solution cavity, fluid bowl, underground river; Play that boring the time prevents spillage, the hole of collapsing, prevent the concrete spillage during concrete spouting in addition, scurry the hole, make pile foundation broken pile or have mass defect.
The installation of " inwall steel casing " it should be noted that; Geological condition records such as strict tracking control of full process record solution cavity, fluid bowl during drilling construction; Make borehole log judge steel casing length is installed; The whole hole of pile foundation judges by designing requirement, embedding rock 2D diameter+solution cavity, guarantees to be not less than 8m below the covered conduit and do not have the steel casing and install, and guarantees its pile foundation bearing capacity of single pile requirement.So the whole hole of pile foundation judges that there are unfavorable geology phenomenons such as solution cavity, covered conduit for preventing in the back in the sharp following 10m, carry out one geological drilling test before the concrete spouting, guarantee the pile foundation quality requirement.
Claims (5)
1. the basic platform structure of the naked rock of deep water, karst stake is characterized in that: this structure comprises steel pipe pile and the pile foundation steel casing that directly drops on the exposed basement rock in riverbed, and described pile foundation steel casing is positioned in the middle of the steel pipe pile; The beam connection is fixing in length and breadth with i iron at the top of said steel pipe pile, and this i iron beam in length and breadth is connected with Bei Leiliang, and shellfish thunder back portion is provided with i iron, and checkered plates is laid at this i iron top.
2. the basic platform structure of the naked rock of deep water as claimed in claim 1, karst stake; It is characterized in that: the steel bushing case that also includes whole steel pipe piles of encirclement and pile foundation pile foundation steel casing; Pouring underwater concrete in this steel bushing case, this concrete is consolidated into an overall structure with all steel pipe piles and all exposed basement rock of pile foundation pile foundation steel casing and riverbed.
3. according to claim 1 or claim 2 the naked rock of deep water, the basic platform structure of karst stake, it is characterized in that: the part that steel pipe pile surfaces connects fixing with bridging.
4. according to claim 1 or claim 2 the naked rock of deep water, the basic platform structure of karst stake, it is characterized in that: described pile foundation steel casing is made up of the inwall steel casing that an outer wall steel casing and is arranged in this outer wall steel casing.
5. the basic platform structure of the naked rock of deep water as claimed in claim 3, karst stake is characterized in that: described pile foundation steel casing is made up of the inwall steel casing that an outer wall steel casing and is arranged in this outer wall steel casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201048593U CN202492854U (en) | 2012-03-19 | 2012-03-19 | Foundation platform structures of deepwater bare rock and karstic piles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201048593U CN202492854U (en) | 2012-03-19 | 2012-03-19 | Foundation platform structures of deepwater bare rock and karstic piles |
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| Publication Number | Publication Date |
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| CN202492854U true CN202492854U (en) | 2012-10-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012201048593U Expired - Fee Related CN202492854U (en) | 2012-03-19 | 2012-03-19 | Foundation platform structures of deepwater bare rock and karstic piles |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619206A (en) * | 2012-04-06 | 2012-08-01 | 中铁二十二局集团第三工程有限公司 | Foundation platform structure of bare rock and karst pile in deep water |
| CN102979090A (en) * | 2012-12-13 | 2013-03-20 | 中铁上海工程局第二工程有限公司 | Construction method for fixing steel casing on covering-free steep bare rock in deepwater and rapid stream |
| CN103233432A (en) * | 2013-04-26 | 2013-08-07 | 济南城建集团有限公司 | Bailey beam reverse lifting support system and construction method thereof |
| CN105569064A (en) * | 2015-12-10 | 2016-05-11 | 中铁大桥局集团有限公司 | Arrangement type sunk well foundation construction method applicable to deepwater bare rock |
| CN109914399A (en) * | 2019-03-21 | 2019-06-21 | 杭州公路工程监理咨询有限公司 | A kind of pile base construction method of environmental protection |
| CN110485305A (en) * | 2019-08-27 | 2019-11-22 | 中铁大桥局集团有限公司 | Steel pile casting Anti-fall platform and its construction method for water Bridge foundation construction |
-
2012
- 2012-03-19 CN CN2012201048593U patent/CN202492854U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619206A (en) * | 2012-04-06 | 2012-08-01 | 中铁二十二局集团第三工程有限公司 | Foundation platform structure of bare rock and karst pile in deep water |
| CN102979090A (en) * | 2012-12-13 | 2013-03-20 | 中铁上海工程局第二工程有限公司 | Construction method for fixing steel casing on covering-free steep bare rock in deepwater and rapid stream |
| CN103233432A (en) * | 2013-04-26 | 2013-08-07 | 济南城建集团有限公司 | Bailey beam reverse lifting support system and construction method thereof |
| CN103233432B (en) * | 2013-04-26 | 2015-02-18 | 济南城建集团有限公司 | Bailey beam reverse lifting support system and construction method thereof |
| CN105569064A (en) * | 2015-12-10 | 2016-05-11 | 中铁大桥局集团有限公司 | Arrangement type sunk well foundation construction method applicable to deepwater bare rock |
| CN109914399A (en) * | 2019-03-21 | 2019-06-21 | 杭州公路工程监理咨询有限公司 | A kind of pile base construction method of environmental protection |
| CN109914399B (en) * | 2019-03-21 | 2021-06-01 | 杭州公路工程监理咨询有限公司 | Environment-friendly pile foundation construction method |
| CN110485305A (en) * | 2019-08-27 | 2019-11-22 | 中铁大桥局集团有限公司 | Steel pile casting Anti-fall platform and its construction method for water Bridge foundation construction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA RAILWAY 22TH BUREAU GROUP CO., LTD. Effective date: 20130123 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130123 Address after: TA Pu Siming East Road Xiamen city Fujian province 361000 No. 166 22 floor Patentee after: The No.3 Engineering., Ltd. of China Railway 22th Bureau Group Patentee after: China Railway 22nd Construction Bureau Co., Ltd. Address before: TA Pu Siming East Road Xiamen city Fujian province 361000 No. 166 22 floor Patentee before: The No.3 Engineering., Ltd. of China Railway 22th Bureau Group |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121017 Termination date: 20210319 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |