CN101871212A - Deep-water bridge foundation pile casing for rocks with large inclination angle - Google Patents
Deep-water bridge foundation pile casing for rocks with large inclination angle Download PDFInfo
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- CN101871212A CN101871212A CN201010209704A CN201010209704A CN101871212A CN 101871212 A CN101871212 A CN 101871212A CN 201010209704 A CN201010209704 A CN 201010209704A CN 201010209704 A CN201010209704 A CN 201010209704A CN 101871212 A CN101871212 A CN 101871212A
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Abstract
The invention relates to a deep-water bridge foundation pile casing for rocks with a large inclination angle. The pile casing is formed by connecting a plurality of subsections. The bottom of the bottommost section of the pile casing is an inclined elliptical cross section, and the steel plate of the bottommost section of the pile casing is provided with a bevel. The invention has the advantages that the bottommost section of the pile casing is made of Q345 steel materials with high hardness,and the steel plate at the bottommost part of the pile casing is treated by 30 degrees, therefore the pile casing cannot be damaged when suffering from extreme impact stress; the periphery of the bottommost section of the pile casing is uniformly welded with a circle of hopper teeth, therefore the pile casing is easy to enter the rock, the depth of the pile casing entering the rock is increased, and the pile casing stands vertically and automatically stabilizes; the bottom of the bottommost section of the pile casing is made into the inclined elliptical cross section, therefore the pile casing can be more tightly attached to the river bed; and the problem of concrete leakage of the river bed in the drilling pole pouring process is thoroughly solved.
Description
Technical field:
The present invention relates to a kind of device that in bridge construction, uses, particularly a kind of deep-water bridge foundation pile casing for rocks with large inclination angle.
Background technology:
Along with deep water bridge design, construction ability and level constantly promote, the deep water bridge design, the construction more and more general.Be broadly divided into marine bridge, rivers Hu Qiao and reservoir area bridge according to the position difference in the common deep water bridge.Three kinds of bridge foundation construction difficulty have nothing in common with each other, and the construction Difficulties of marine bridge is how to tackle pushing away of wave to gush and the fluctuation of the tidewater influence to construction; The bridge construction in rivers lake mainly is the influence of being opened the navigation or air flight, and the foundation construction difficulty is relatively low, and the bottom cover layer in riverbed is thicker, and inserting of casing beaten easily certainly surely, and the drilling platform of building is relatively easy and stable; Reservoir area bridge foundation construction difficulty is: 1) water of reservoir area is to darker, especially in the downstream of reservoir area; 2) many places, reservoir area are between the mountain valley, the very steep hillside fields of many gradients, the bottom of reservoir; 3) the bottom major part of reservoir area is the hillside that floods after reservoir forms, and the covering layer of soil property, gravel is very thin, and the mud that forms behind the sediment deposition that flood carries is uprightly stablized inoperative to casing.Insert on being positioned at the riverbed face of high inclination-angle scar when beating casing, after casing usually occurring and a side denidation occurring, opposite side still is suspended in the water or in the mud, and casing is under the effect of hitting the power of shaking, and the Yi Shun slope slips down, causes casing to locate, go into the rock difficulty.And know that according to the data that experiment obtains casing is beaten in the process inserting, the impact stress extreme value appears at the bottommost zone of casing.
Summary of the invention:
Purpose of the present invention just is to overcome above-mentioned the deficiencies in the prior art, and a kind of deep-water bridge foundation pile casing for rocks with large inclination angle is provided, and this casing can accurately locate on the tectal rocky bed of the shallow soil property of wide-angle tilt, insert and beat, support oneself.
As above design, technical scheme of the present invention is: a kind of deep-water bridge foundation pile casing for rocks with large inclination angle, connect to form by several merogenesis, it is characterized in that: the elliptical section of the bottom surface of casing bottommost merogenesis for tilting, and on casing bottommost merogenesis steel plate, have groove.
Above-mentioned casing bottom most portion is saved high rigidity Q345 steel and is made.
Bond length 〉=the 50cm of above-mentioned casing bottommost merogenesis.
Have 30 ° of grooves on the above-mentioned casing bottommost merogenesis steel plate.
Evenly weld a circle bucket tooth on the periphery of above-mentioned casing bottommost merogenesis.
Above-mentioned bucket tooth surface-coated has alloy-layer.
Above-mentioned bucket tooth exceeds casing bottom merogenesis 5cm, the spacing 55cm between each bucket tooth.
The present invention has following advantage and good effect:
1, the design makes the casing bottom most portion successively with high rigidity Q345 steel, and casing bottommost steel plate is done 30 ° of grooves handle, and makes its easier insertion rock, so that casing is not destroyed when running into the extreme value impact stress.
2, the design's even welding one circle bucket tooth on the periphery of casing bottommost merogenesis, it exceeds casing bottom merogenesis 5cm, the spacing 55cm between the bucket tooth, casing is easier goes into rock thereby make, and what increase casing goes into the rock degree of depth, makes casing upright from steady.
3, the design makes the elliptical section of inclination with the bottom surface of casing bottommost merogenesis, thereby makes the casing riverbed face of more fitting.
Description of drawings:
Fig. 1 is the elevation of casing bottommost merogenesis.
Fig. 2 is the upward view of Fig. 1
Fig. 3 is the groove enlarged drawing of Figure 1A portion-casing bottommost merogenesis.
Fig. 4 is the distribution schematic diagram of bucket tooth.
Fig. 5 is Fig. 2 B portion enlarged drawing.
Among the figure: 1. the casing spreading is with batten plate, 2. elliptical section, the 3. alloy steel bucket tooth of casing bottommost merogenesis, 4. casing bottommost merogenesis, 30 ° of grooves 5. having on the casing bottommost merogenesis steel plate, the 6. alloy-layer of alloy steel bucket tooth.
The specific embodiment:
As shown in the figure: a kind of deep-water bridge foundation pile casing for rocks with large inclination angle, be welded to form by several merogenesis, every joint full weld connects, and also uses 20cm * 40cm * 2cm batten plate welding to strengthen.The casing bottom most portion is saved high rigidity Q345 steel and is made, and the ellipse section of the inclination of the riverbed face of more fitting is made according to the bed elevation figure of each pile foundation position in its bottom surface, its bond length 〉=50cm.On casing bottommost merogenesis steel plate, have 30 ° of grooves, make its easier insertion rock, so that casing is not destroyed when running into the extreme value impact stress.In order to increase the down rock ability of casing, solve the problem on casing slide slope, welding one circle alloy bucket tooth on the periphery of casing bottommost merogenesis, it exceeds casing bottom 5cm, and spacing 50cm makes that casing is easier goes into rock, what increase casing goes into the rock degree of depth, makes casing upright from steady.
The design's implementation process and main implementation method are as follows:
The method that spy and design drawing combine.
(2) the casing bottom most portion is saved 345 high-strength steel and is rolled.According to height measurement figure, the bottommost merogenesis of casing is made the elliptic jet (be non-with casing vertical plane incising circular casing gained) of inclination.
(3) welding one circle alloy bucket tooth on the periphery of casing bottommost merogenesis, it exceeds casing bottom 5cm, and spacing 50cm makes that casing is easier goes into rock, and what increase casing goes into the rock degree of depth, makes casing upright from steady.
(4) guide device is deep in the water, and makes it extend into face place, riverbed as much as possible, increase the vertical constraint power of casing, allow it vertically go into rock.
The design has solved riverbed, a high inclination-angle rock stratum face casing down rock difficult problem well by to the adjustment design of casing bottom end merism and the reinforcement of guide device.
Claims (7)
1. a deep-water bridge foundation pile casing for rocks with large inclination angle is connected to form by several merogenesis, it is characterized in that: the elliptical section of the bottom surface of casing bottommost merogenesis for tilting has groove on the casing bottommost merogenesis steel plate.
2. deep-water bridge foundation pile casing for rocks with large inclination angle according to claim 1 is characterized in that: above-mentioned casing bottom most portion is saved high rigidity Q345 steel and is made.
3. deep-water bridge foundation pile casing for rocks with large inclination angle according to claim 1 and 2 is characterized in that: the bond length 〉=50cm of above-mentioned casing bottommost merogenesis.
4. deep-water bridge foundation pile casing for rocks with large inclination angle according to claim 1 and 2 is characterized in that: have 30 ° of grooves on the above-mentioned casing bottommost merogenesis steel plate.
5. deep-water bridge foundation pile casing for rocks with large inclination angle according to claim 1 is characterized in that: evenly weld a circle bucket tooth on the periphery of above-mentioned casing bottommost merogenesis.
6. deep-water bridge foundation pile casing for rocks with large inclination angle according to claim 5 is characterized in that: above-mentioned bucket tooth surface-coated has alloy-layer.
7. according to claim 5 or 6 described deep-water bridge foundation pile casing for rocks with large inclination angle, it is characterized in that: above-mentioned bucket tooth exceeds casing bottom merogenesis 5cm, the spacing 55cm between each bucket tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010209704A CN101871212A (en) | 2010-06-25 | 2010-06-25 | Deep-water bridge foundation pile casing for rocks with large inclination angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010209704A CN101871212A (en) | 2010-06-25 | 2010-06-25 | Deep-water bridge foundation pile casing for rocks with large inclination angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101871212A true CN101871212A (en) | 2010-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010209704A Pending CN101871212A (en) | 2010-06-25 | 2010-06-25 | Deep-water bridge foundation pile casing for rocks with large inclination angle |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966102A (en) * | 2012-12-13 | 2013-03-13 | 中铁上海工程局有限公司 | Fixing structure for steel casing on steep bare rock without covering layer in deep water and rapids |
| CN109488209A (en) * | 2018-12-26 | 2019-03-19 | 腾达建设集团股份有限公司 | A kind of steel sleeve, full-sleeve full-rotation drill and drilling machine drilling method |
| CN114892653A (en) * | 2022-06-14 | 2022-08-12 | 中国建筑第四工程局有限公司 | Steel casing combined structural member and construction method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006127571A2 (en) * | 2005-05-20 | 2006-11-30 | Geopier Foundation Company, Inc. | Slotted mandrel for lateral displacement pier and method of use |
| CN2851360Y (en) * | 2005-12-08 | 2006-12-27 | 王国奋 | Piling immersed tube used in silt layer |
| CN101255691A (en) * | 2008-04-14 | 2008-09-03 | 福建永强岩土工程有限公司 | Construction method for complete casing tube thin wall filling pile and movable internal mold |
| CN101684650A (en) * | 2008-09-27 | 2010-03-31 | 陈东曙 | Cast-in-place concrete thin-walled tooth-shaped tubular pile with large diameter, pile forming device and method for forming pile |
-
2010
- 2010-06-25 CN CN201010209704A patent/CN101871212A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006127571A2 (en) * | 2005-05-20 | 2006-11-30 | Geopier Foundation Company, Inc. | Slotted mandrel for lateral displacement pier and method of use |
| CN2851360Y (en) * | 2005-12-08 | 2006-12-27 | 王国奋 | Piling immersed tube used in silt layer |
| CN101255691A (en) * | 2008-04-14 | 2008-09-03 | 福建永强岩土工程有限公司 | Construction method for complete casing tube thin wall filling pile and movable internal mold |
| CN101684650A (en) * | 2008-09-27 | 2010-03-31 | 陈东曙 | Cast-in-place concrete thin-walled tooth-shaped tubular pile with large diameter, pile forming device and method for forming pile |
Non-Patent Citations (1)
| Title |
|---|
| 吴建平: "海上桥梁桩基施工工艺探讨", 《湖南交通科技》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966102A (en) * | 2012-12-13 | 2013-03-13 | 中铁上海工程局有限公司 | Fixing structure for steel casing on steep bare rock without covering layer in deep water and rapids |
| CN109488209A (en) * | 2018-12-26 | 2019-03-19 | 腾达建设集团股份有限公司 | A kind of steel sleeve, full-sleeve full-rotation drill and drilling machine drilling method |
| CN114892653A (en) * | 2022-06-14 | 2022-08-12 | 中国建筑第四工程局有限公司 | Steel casing combined structural member and construction method thereof |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101027 |