CN204875768U - Accurate pile sinking pile foundation structure of underwater engineering - Google Patents

Accurate pile sinking pile foundation structure of underwater engineering Download PDF

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Publication number
CN204875768U
CN204875768U CN201520401125.5U CN201520401125U CN204875768U CN 204875768 U CN204875768 U CN 204875768U CN 201520401125 U CN201520401125 U CN 201520401125U CN 204875768 U CN204875768 U CN 204875768U
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pile
steel
stake
steel pipe
accurate
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CN201520401125.5U
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王小平
阴文江
程斌
李春保
王俊峰
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CCCC FOURTH HARBOR ENGINEERING BUREAU HARBOUR ENGINEERING DESIGN INSTITUTE Co Ltd
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CCCC FOURTH HARBOR ENGINEERING BUREAU HARBOUR ENGINEERING DESIGN INSTITUTE Co Ltd
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Abstract

The utility model discloses an accurate pile sinking pile foundation structure of underwater engineering, the pile foundation is continued to connect and forms through being located between the two receiving element by the PHC stake that is located the below that has the same external diameter and the steel -pipe pile that is located the top, receiving element is fixed in PHC stake pile bolck in advance, steel -pipe pile welded fastening in on the receiving element. The utility model discloses can be applicable to the pile foundation construction deviation that the geological transformation arouses in a flexible way, conveniently implement underwater welding or cutting, interim cofferdam or pouring jacket formation dry work condition need not to build, structural guarantee is provided for the underwater construction who implements the slide structure smoothly, the structural durability problem had both been solved, convenient pile extension under water or eager stake again, realized that the structure is reliable, reduce the process, reduction of erection time, implement safety, the expense such as saves at multiple target, can be in the popularization and application in the large -scale shipbuilding and repair yards.

Description

The accurate pile sinking piling strtucture of Underwater Engineering
Technical field
The utility model relates to the technical field of launching way piling strtucture.
Background technology
The upper and lower drainage facility of shipbuilding and repair yards' boats and ships refers to built ship launching or eligible for repair boats and ships is made it the building that water outlet places under repair, and is the main production ingredient of shipbuilding and repair yards.
The upper and lower drainage facility of current boats and ships roughly can be summarized as by its operating principle: arine railway, dock and ship lift three kinds, and wherein arine railway has that facilities and equipment is comparatively simple, cost is comparatively cheap, have the advantages such as longer use operating experience.
Slideway structure major part under water, the structural shapes such as general employing beam on elastic foundation or pile foundation rail beam, need the condition that Temporary Cofferdam formation dry work is set to build in building in the past, China starts to build slideway successively in the fifties, but it is immature owing to there are plant equipment technical condition, the problems such as cofferdam cost is high, long in time limit, were mostly applied to the medium and small size shipyards in the past, constrained slideway applying in large-scale shipbuilding and repair yards.
If directly carry out underwater pile construction, if Underwater Engineering pile foundation uses PHC stake, there is more difficult problem of cutting stake or pile extension under water; According to castinplace pile, the difficult quality of fluid concrete is guaranteed under water, and cost is too high; Although steel pipe pile can imderwater cutting or pile extension, there is the problem of durability, construction costs and maintenance cost are all too high.
Utility model content
The utility model relates to a kind of technology being suitable for launching way pile foundation construction, and piling strtucture of the present utility model is adapted at Underwater Welding or cutting pile foundation.
To achieve these goals, the utility model have employed following technical scheme: the accurate pile sinking piling strtucture of Underwater Engineering, described pile foundation by have same outer diameter be positioned at the PHC stake of below and the steel pipe pile above being positioned at is formed by the supporting continued access be positioned between the two, described supporting pre-fixes in PHC stake stake top, and described steel pipe pile is fixedly welded on described supporting.
As a kind of embodiment, described supporting is a steel end shield, and described steel end shield has an annular end face and the cylindric side from annular end face excircle to downward-extension, and described steel end shield is socketed and is fixed on the top of described PHC stake.
As another kind of embodiment, described supporting is flange, and described flange is fixedly connected on the top of described PHC stake.
Particularly, described steel pipe pile top arranges cap, cap has the cap chamber of inner hollow, be provided with in cap chamber and penetrate from cap the steel bar framework that steel pipe pile pile body enters at least part PHC stake pile body, joint concrete has been built in cap inside, steel pipe pile pile body and PHC stake pile body have built inner concrete, and steel bar framework embedded by joint concrete and inner concrete.
Preferably, the bottom of described steel bar framework is positioned at 50 ~ 80cm on bottom inner concrete.
Preferably, steel pipe pile inwall is provided with some annular Reinforced Hoop for strengthening steel pipe pile pile lining.
Preferably, steel bar framework by foursquare annular frame with formed with vertical bar shaped reinforcing bar.
The utility model is a kind of novel compositions piling strtucture, and it adopts PHC stake to be combined with steel pipe pile, is applicable to underwater pile engineering.This pile-type combines the advantage of PHC stake and steel pipe pile, stake bottom is PHC stake, stake top is steel pipe pile, because stake top is steel work, geology can be applicable to flexibly and change the pile foundation construction deviation caused, convenient enforcement Underwater Welding or cutting, without the need to building Temporary Cofferdam or casing formation dry work condition, for the subaqueous construction implementing slideway structure smoothly provides structural guarantee, both Structural Endurance Problem was solved, facilitate again pile extension under water or cut stake, achieve structure reliable, reduce operation, reduction of erection time, implement safety, the multiple targets such as expense saving, can being applicable in large-scale shipbuilding and repair yards.
Accompanying drawing explanation
Be described in detail below with reference to the accompanying drawings.
Fig. 1 is compound pile piling strtucture schematic diagram of the present utility model.
Fig. 2 be Fig. 1 A ?A sectional view.
Fig. 3 is the utility model compound pile and upper cap girder construction connection diagram.
Fig. 4 be Fig. 3 B ?B sectional view.
1 ?steel pipe pile 2 ?PHC stake 3 ?steel pipe pile ribs 4 ?steel end shield 5 ?cap 6 ?joint concrete 7 ?inner concrete 8 ?steel bar framework 9 ?steel plate Reinforced Hoop
Detailed description of the invention
As Fig. 1 ~ 2 are depicted as compound pile piling strtucture of the present utility model, it comprises the PHC stake being positioned at below and the steel pipe pile being positioned at top, and both have identical external diameter.The stake top cover of PHC stake connects and is fixed with steel end shield 4, and steel end shield 4 is connected with the Plate Welding of the steel pipe pile 1 be located thereon.Steel end shield 4 has an annular end face and the cylindric side from annular end face excircle to downward-extension, and when prefabricated PHC stake, namely steel end shield is socketed and is fixed on the top of PHC stake.
As another kind of way, if do not arrange steel end shield, PHC stake top can be arranged on and be fixedly installed flange, then welded steel pipe pile on flange.
The pile lining of PHC stake is made up of steel concrete, and pile lining encloses and forms inner stake chamber.The pile lining of steel pipe pile is made up of steel plate, and steel pipe pile pile lining encloses and forms inner stake chamber.
The inwall of steel pipe pile is circumferentially provided with some annular Reinforced Hoop 9 for strengthening steel pipe pile pile lining.Upright steel pipe pile ribs 3 is welded with on steel end shield 4.
As shown in Figure 3, steel pipe pile top arranges cap 5, and cap inside has the inner chamber of up/down perforation.Steel bar framework 8 penetrates steel pipe pile 1 pile body from cap 5 and enters at least part PHC stake 2 pile body.Steel bar framework 8 by foursquare annular frame and 8.1 and vertical bar shaped reinforcing bar 8.2 formed.Joint concrete 6 has been built in cap 5 inside, and steel pipe pile pile body and PHC stake pile body have built inner concrete 7, and joint concrete 6, inner concrete 7 embed steel bar framework 8 in the inner, make cap, steel pipe pile, PHC stake become be integrated.The bottom of steel bar framework 8 is positioned at 50 ~ 80cm on bottom inner concrete 7.
Here is the method that the utility model is implemented:
(1) according to geological condition just fixed required pile foundation total length, described pile foundation is by having the PHC stake being positioned at below of same outer diameter and the steel pipe pile above being positioned at is formed by the supporting continued access be positioned between the two.Described supporting pre-fixes the steel end shield in PHC stake stake top, and steel end shield and upper steel pile tube are welded into entirety.
(2) pile sinking, transfers the pile foundation entirety of having welded after arrival at the bottom of stake requires absolute altitude under water and fixes, carry out pile extension or cut stake process making it meet design altitude according to designing requirement to the steel pipe pile on top.
A transit and a total powerstation is set up at the survey station of positive side on the bank of pile sinking position, stake is drowned oneself, hammer, injection process, pile penetration, absolute altitude monitor, under water during pile follower, check pile feeding guiding pipe and pile monkey, replace and beat and the positive lateral vertical degree of pile body, and tracking observation final 10 hits mean penetration, and control design case stake top mark is high, pile sinking pile position deviation is not more than 70mm by designing requirement and controls.Cutting-height is demarcated after reaching design elevation in the stake end, carries out cutting make it meet the requirement of design total length to upper steel pile tube.This step adopts imderwater cutting to adopt ripe electricity under water-oxygen cutting technology.Key step comprises:
(2.1) diving boat location;
(2.2) high process control is measured: adopt side lever to measure height of pile top.Measuring staff select mainly: guarantee that material stiffness is good, vertically and not easily distortion, light use.Compared by the experiment of unlike material, final choice φ 30mm, φ 50mm, φ 80mm stainless steel tube are as the material of measuring staff, and high according to the stake top mark of different depth, carry out the measuring staff of Combined machining three different lengths, length is respectively: 6m, 9m, 12m.When measuring stake top mark height, being selected in the stormy waves time period that is minimum or slack tide carries out, and measuring staff is fixed measurement tower beacon chi and the spirit level of a 5m.By diver, measuring staff is stood on stake top, waterborne hold up chi personnel utilize spirit level control before and after verticality, observed by surveyor on the bank during measurement and control left and right verticality, and observe elevation.
(2.3) lay cutting spacer ferrule and formulate cutting absolute altitude.After spacer ferrule being arranged on general cutting position by water under diver, surveyor's repetition measurement absolute altitude, commander diver carries out adjustment, and four adjustment bolts are all adjusted to required elevation location.Selecting of cutting spacer ferrule material: select W40 × 5mm band steel that spacer ferrule is processed into steel hoop pattern, arrange adjustable adjustment bolt in hoop periphery, as adjustment absolute altitude use, it can be convenient to diver under water can light operation.
(2.4) lay line of cut and lead hoop: line of cut leads accuracy and the planeness that every pile stake top cutting absolute altitude mainly guaranteed by hoop.Install after spacer ferrule at surveying and locating, add cover line of cut thereon and lead hoop, guarantee that line of cut is accurate, lead hoop top mark by measurement repetition measurement line high.Line is led hoop and is adopted band steel to be processed into steel ring type, and steel ring end face has added insulation rubber tube.
(2.5) Cutting platform frame is laid.
(2.6) pile crown is cut.
(2.7) pile crown is hung.
(2.8) repetition measurement stake top mark height and stake position.
(3) stake is long be adjusted to design elevation after, at steel pipe pile top, cap is set, cap has the cap chamber of inner hollow, be provided with in cap chamber and penetrate from cap the steel bar framework that steel pipe pile pile body enters at least part PHC stake pile body, build joint concrete in inside, cap chamber, build inner concrete at steel pipe pile pile body and PHC stake pile body.
The utility model includes, but are not limited to above-described embodiment and content shown in the drawings, other all fall within protection domain of the present utility model with the product structure that the technical solution of the utility model has identical essentiality content.

Claims (7)

1. the accurate pile sinking piling strtucture of Underwater Engineering, it is characterized in that: pile foundation by have same outer diameter be positioned at the PHC stake of below and the steel pipe pile above being positioned at is formed by the supporting continued access be positioned between the two, described supporting pre-fixes in PHC stake stake top, and described steel pipe pile is fixedly welded on described supporting.
2. the accurate pile sinking piling strtucture of Underwater Engineering according to claim 1, it is characterized in that: described supporting is a steel end shield, described steel end shield has an annular end face and the cylindric side from annular end face excircle to downward-extension, and described steel end shield is socketed and is fixed on the top of described PHC stake.
3. the accurate pile sinking piling strtucture of Underwater Engineering according to claim 1, it is characterized in that: described supporting is flange, described flange is fixedly connected on the top of described PHC stake.
4. the accurate pile sinking piling strtucture of Underwater Engineering according to claim 1, it is characterized in that: described steel pipe pile top arranges cap, cap has the cap chamber of inner hollow, be provided with in cap chamber and penetrate from cap the steel bar framework that steel pipe pile pile body enters at least part PHC stake pile body, joint concrete has been built in cap inside, steel pipe pile pile body and PHC stake pile body have built inner concrete, and steel bar framework embedded by joint concrete and inner concrete.
5. the accurate pile sinking piling strtucture of Underwater Engineering according to claim 4, is characterized in that: the bottom of described steel bar framework is positioned at 50 ~ 80cm on bottom inner concrete.
6. the accurate pile sinking piling strtucture of Underwater Engineering according to claim 4, is characterized in that: steel pipe pile inwall is provided with some annular Reinforced Hoop for strengthening steel pipe pile pile lining.
7. the accurate pile sinking piling strtucture of Underwater Engineering according to claim 4, is characterized in that: steel bar framework is by foursquare annular frame and formed with vertical bar shaped reinforcing bar.
CN201520401125.5U 2015-06-11 2015-06-11 Accurate pile sinking pile foundation structure of underwater engineering Active CN204875768U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104929116A (en) * 2015-06-11 2015-09-23 中交四航局港湾工程设计院有限公司 Precision pile sinking foundation structure of underwater engineering and underwater chute pile foundation structure construction method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104929116A (en) * 2015-06-11 2015-09-23 中交四航局港湾工程设计院有限公司 Precision pile sinking foundation structure of underwater engineering and underwater chute pile foundation structure construction method

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