CN1172056C - Large wharf structure with retaining structure in front of and rear side of pile base slab - Google Patents
Large wharf structure with retaining structure in front of and rear side of pile base slab Download PDFInfo
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- CN1172056C CN1172056C CNB031004121A CN03100412A CN1172056C CN 1172056 C CN1172056 C CN 1172056C CN B031004121 A CNB031004121 A CN B031004121A CN 03100412 A CN03100412 A CN 03100412A CN 1172056 C CN1172056 C CN 1172056C
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Abstract
The present invention discloses a large wharf structure with soil retaining structures in front part and the rear part of a pile base supporting platform. The structure comprises a pile base supporting platform, a rear soil retaining structure and a front soil retaining structure, wherein the front soil retaining structure is arranged under the front part of the pile base supporting platform and is parallel to the direction of a wharf shoreline; a pile base of the pile base supporting platform is positioned in base soil between the front soil retaining structure and the rear soil retaining structure; or a part pile base is positioned on the front soil retaining structure; the front soil retaining structure is a cylinder body structure parallel to the direction of the wharf shoreline or a cylindroid body structure or a hollow polygonal cylinder body structure; the front soil retaining structure is provided with a sealing cover topping board which is provided with a switching through hole. The present invention is suitable for building large deep water shore connecting pile base wharves on soft soil seabed bases. The wharf pile base supporting platform with the structural type has the advantages of small width, simple and convenient construction, short construction period and correspondingly low construction cost.
Description
Technical field
The present invention relates to a kind of pile foundation support table front and back and establish the large pier structure of soil-baffling structure.Belong to the building structure in the port works field.
Background technology
The harbour of building on soft foundation mostly is the pile foundation support table structure.The traditional bank formula that connects pile foundation wharfs are made up of pile foundation support table (comprising pile foundation and superstructure) and rear soil-baffling structure, show as Fig. 1.For the large-sized deep water pile foundation wharfs on the soft foundation, on the one hand because the mud face side slope under the bank stability requirement pile foundation support table is more slow, the front and back mud face discrepancy in elevation that is built in the rear soil-baffling structure on the soft foundation on the other hand is little, the reason of this two aspect all causes the width between harbour pile foundation support table front and back big, increases the construction costs of harbour.If the soil-baffling structure to pile foundation wharfs carries out reasonable Arrangement and type selecting, the width of harbour pile foundation support table is reduced, thereby reduce the construction costs of harbour.
Summary of the invention
The object of the present invention is to provide a kind of pile foundation support table front and back to establish the large pier structure of soil-baffling structure, it is little that the harbour of this structural shape has a pile foundation support table width, the characteristics that construction costs is low.
For achieving the above object, the present invention is realized by following technical proposals: comprise the pile foundation support table that is made of pile foundation and superstructure, the pile foundation support table rear is parallel to the large pier structure of the rear soil-baffling structure of frontage direction setting, it is characterized in that, under pile foundation support table the place ahead, be parallel to the frontage direction the place ahead soil-baffling structure is set, in the foundation soil of the pile foundation of pile foundation support table between the place ahead and rear soil-baffling structure, or the part pile foundation is positioned on the soil-baffling structure of the place ahead, described the place ahead soil-baffling structure is to be parallel to the cylindrical structure that the frontage direction is arranged, or elliptical cylinder structure, or hollow polygon tubular construction.
Cylinder in the soil-baffling structure of above-mentioned the place ahead, or elliptical cylinder, or hollow polygon cylindrical shell made by metal material, or its underpart is by metal material, and top is made by concrete material.
Cylinder in the soil-baffling structure of above-mentioned the place ahead, or elliptical cylinder, or hollow polygon cylindrical shell has the sealing top cover plate, but lamina tecti is provided with the through hole of switch.
The front-seat pile foundation of above-mentioned pile foundation support table is adjacent two cylinders that are inserted in the place ahead soil-baffling structure, or adjacent two elliptical cylinders, or in the foundation soil between adjacent two hollow polygon cylindrical shells; Or be inserted in the cylinder of the place ahead soil-baffling structure, or elliptical cylinder, or in the foundation soil within the hollow polygon cylindrical shell; Or the cylinder by the place ahead soil-baffling structure, or elliptical cylinder, or the conduit that is provided with on the lamina tecti of hollow polygon cylindrical shell is inserted in the foundation soil; Or be supported on the cylinder of the place ahead soil-baffling structure, or elliptical cylinder, or on the lamina tecti of hollow polygon cylindrical shell.
Superiority of the present invention is: the large pier structure of soil-baffling structure is established in the pile foundation support table front and back, be suitable for building large-sized deep water and connect the bank pile foundation wharfs on weak soil sea bed ground, the harbour pile foundation support table width of this structural shape is little, easy construction, construction period is short, and construction costs is relatively low.
Description of drawings
Below in conjunction with accompanying drawing the present invention is illustrated.
Fig. 1 is the cross-sectional configuration schematic diagram in traditional pile foundation wharfs
Fig. 2 is a cross-sectional configuration schematic diagram of the present invention.
Fig. 3 and Fig. 4 keep off two kinds of layout mode schematic diagrames of native cylinder and pile foundation for the place ahead of the present invention.
1 for the place ahead keeps off native cylinder among the figure, and 2 is pile foundation, and 3 is the superstructure of pile foundation support table, and 4 is the rear soil-baffling structure.
The specific embodiment
One embodiment of the invention is as follows: the large pier structure of soil-baffling structure is established in pile foundation support table front and back as shown in Figures 2 and 3, is kept off the superstructure 3 and the rear soil-baffling structure 4 of native cylinder 1, pile foundation 2, pile foundation support table by the place ahead and forms.Mud face absolute altitude-20m before the harbour, harbour end face absolute altitude+6m, the wide 38m of pile foundation support table, the horizontal frame spacing 8m of pile foundation support table, pile foundation is the steel pipe pile of diameter 1.0m; The place ahead keeps off the steel drum of native cylinder for the band top cover, and diameter 7.5m, high 22m, wall thickness 15mm, its top mark height be-9m, and end absolute altitude is-31m, and the minimum spacing between the adjacent cylinders of arrangement is 0.5m, and the cylinder front side is far from wharf apron 0.5m; The two straight stakes in the front row of pile foundation support table are positioned at the seam crossing between adjacent two cylinders, in the foundation soil of other pile foundation between the place ahead and rear soil-baffling structure; The soil body gradient of cylinder rear side is 1: 3, and the mud face absolute altitude before the soil-baffling structure of rear is about+2.5m, and the front and back mud face discrepancy in elevation of rear soil-baffling structure is 3.5m.
This harbour can be stopped the boats and ships of 20 tons.If build this harbour by traditional pile foundation wharfs form of structure of having only the rear soil-baffling structure, then the width of pile foundation support table is more than 80m, go out more than the 42m than pile foundation support table of the present invention is wide, and this kind pile foundation support table have supporting capacity limited, to overload weakness such as very sensitivity, poor durability, later maintenance workload be big.Pile foundation support table width of the present invention is narrow, helps overcoming the above-mentioned shortcoming in existing pile foundation wharfs, and can reduce the amount of excavation of foundation soil under the pile foundation support table.
This harbour can be constructed by following step:
(1) seafloor soil with the cylinder position is excavated to mud face absolute altitude-9m, and in the digging process, the cylinder rear is by putting the slope than 1: 3 slightly steep gradient;
(2) the cylinder movement of land fabrication is installed to the infield positioning sinking, the sinking of cylinder can be adopted and take out negative pressure or ballast method and take out negative pressure and the method for ballast associating;
(3) after the cylinder that is in place is aligned to certain length, the basin of cylinder front side is excavated design end absolute altitude-20m;
(4) basin continues for some time after excavating design elevation, allows the cylinder displacement fully develop;
(5) after the cylinder displacement is stablized, the pile foundation of pile foundation support table is implemented piling, build the superstructure and the rear soil-baffling structure of pile foundation support table then.
The place ahead among the present invention keeps off native cylinder and is arranged in the bigger foundation soil of former buried depth, the soil body denser of foundation of sea floor depths generally speaking, and mechanical index is higher, and the stability of cylinder is content with very little like this.From above-mentioned work progress as can be seen, the cylinder displacement under the soil pressure effect in the wings produces before pile foundation is implemented piling, and the load of harbour operating period is smaller to the displacement influence of cylinder, therefore, the displacement of restive cylinder is smaller to the influence of dock structure in this dock structure.
The large pier structure that soil-baffling structure is established in the pile foundation support table front and back is suitable for building large-sized deep water and connects the bank pile foundation wharfs on weak soil sea bed ground, the harbour pile foundation support table width of this structural shape is little, easy construction, and the construction period is short, and construction costs is relatively low.
Claims (4)
1. large pier structure that soil-baffling structure is established in the pile foundation support table front and back, comprise the pile foundation support table that constitutes by pile foundation and superstructure, the pile foundation support table rear is parallel to the rear soil-baffling structure that the frontage direction is provided with, it is characterized in that, under pile foundation support table the place ahead, be parallel to the frontage direction the place ahead soil-baffling structure is set, in the foundation soil of the pile foundation of pile foundation support table between the place ahead and rear soil-baffling structure, or the part pile foundation is positioned on the soil-baffling structure of the place ahead, described the place ahead soil-baffling structure is to be parallel to the cylindrical structure that the frontage direction is arranged, or elliptical cylinder structure, or hollow polygon tubular construction.
2. the large pier structure of establishing soil-baffling structure according to the described pile foundation support table of claim 1 front and back is characterized in that the cylinder in the soil-baffling structure of the place ahead, or elliptical cylinder, or hollow polygon cylindrical shell made by metal material, or its underpart is by metal material, and top is made by concrete material.
3. the large pier structure of establishing soil-baffling structure according to the described pile foundation support table of claim 1 front and back, it is characterized in that the cylinder in the soil-baffling structure of the place ahead, or elliptical cylinder, or hollow polygon cylindrical shell has the sealing top cover plate, but lamina tecti is provided with the through hole of switch.
4. the large pier structure of establishing soil-baffling structure according to the described pile foundation support table of claim 1 front and back, it is characterized in that, the front-seat pile foundation of pile foundation support table is adjacent two cylinders that are inserted in the place ahead soil-baffling structure, or adjacent two elliptical cylinders, or in the foundation soil between adjacent two hollow polygon cylindrical shells; Or be inserted in the cylinder of the place ahead soil-baffling structure, or elliptical cylinder, or in the foundation soil within the hollow polygon cylindrical shell; Or the cylinder by the place ahead soil-baffling structure, or elliptical cylinder, or the conduit that is provided with on the lamina tecti of hollow polygon cylindrical shell is inserted in the foundation soil; Or be supported on the cylinder of the place ahead soil-baffling structure, or elliptical cylinder, or on the lamina tecti of hollow polygon cylindrical shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031004121A CN1172056C (en) | 2003-01-14 | 2003-01-14 | Large wharf structure with retaining structure in front of and rear side of pile base slab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031004121A CN1172056C (en) | 2003-01-14 | 2003-01-14 | Large wharf structure with retaining structure in front of and rear side of pile base slab |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1425829A CN1425829A (en) | 2003-06-25 |
| CN1172056C true CN1172056C (en) | 2004-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031004121A Expired - Fee Related CN1172056C (en) | 2003-01-14 | 2003-01-14 | Large wharf structure with retaining structure in front of and rear side of pile base slab |
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| CN (1) | CN1172056C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105735196B (en) * | 2016-03-28 | 2019-04-02 | 中交第三航务工程勘察设计院有限公司 | A kind of frame bucket dock structure and its manufacturing method |
| CN107975059A (en) * | 2018-01-12 | 2018-05-01 | 中交第三航务工程勘察设计院有限公司 | A kind of assembled pile foundation wharfs structure and its construction method |
| CN113684785B (en) * | 2021-08-23 | 2023-06-16 | 中交(天津)疏浚工程有限公司 | Construction process of pile foundation wharf |
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2003
- 2003-01-14 CN CNB031004121A patent/CN1172056C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1425829A (en) | 2003-06-25 |
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