CN206815370U - Underwater bridge pier suction basis - Google Patents

Underwater bridge pier suction basis Download PDF

Info

Publication number
CN206815370U
CN206815370U CN201720217227.0U CN201720217227U CN206815370U CN 206815370 U CN206815370 U CN 206815370U CN 201720217227 U CN201720217227 U CN 201720217227U CN 206815370 U CN206815370 U CN 206815370U
Authority
CN
China
Prior art keywords
suction
pier
main bucket
skirt
basis
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 - Fee Related
Application number
CN201720217227.0U
Other languages
Chinese (zh)
Inventor
刘学洋
亓义菘
丁鲁强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong University of Science and Technology
Original Assignee
Shandong University of Science and Technology
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shandong University of Science and Technology filed Critical Shandong University of Science and Technology
Priority to CN201720217227.0U priority Critical patent/CN206815370U/en
Application granted granted Critical
Publication of CN206815370U publication Critical patent/CN206815370U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B17/00Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B2017/0056Platforms with supporting legs
    • E02B2017/0073Details of sea bottom engaging footing
    • E02B2017/0078Suction piles, suction cans

Abstract

The utility model discloses a kind of underwater bridge pier suction basis, it by same central shaft the main bucket of suction, skirt-type structure and annular groove and top pier structure composition, the wherein main bucket of suction is top closure, a kind of steel base barrel shaped structure of bottom opening, osculum is set at its top center, annular groove is looped around on the main bucket outer wall of suction, skirt-type structure is be looped around suction main bucket periphery columnar structured, its top surface is evenly arranged permanent permeable circular hole and the bolt hole of connection top pier structure, top pier structure is the Bridge Pier of cylinder, the main bucket of suction and the top surface of skirt-type structure connect into an entirety with top pier structure by ring flange and bolt arrangement.The utility model provides a kind of underwater bridge pier suction basis, its object is to reduce the washed out degree of underwater foundation suction basis surrounding soil to a certain extent, overcome the problem of traditional pier footing is difficult to application in deep soft soil layer under water, the horizontally and vertically bearing capacity of infrastructure is effectively improved, improves the stability of underwater infrastructure.

Description

Underwater bridge pier suction basis
Technical field
It the utility model is related to bridge technology field, more particularly to a kind of underwater bridge pier suction basis.
Background technology
In recent years, with the high speed development of traffic engineering technical field, bridge spanning the sea and leap river, the building in lake Bridge is more and more, and therefore, the pier footing built can be more in underwater soft soil layer, underwater soft soil layer water content Height, low intensity, bearing capacity are poor, and basis increases under water easily by larger moment of flexure and horizontal power load with the time Larger horizontal displacement and corner can be produced, is easily migrated, the stability of underwater infrastructure can not be ensured.
The common practices of traditional pier footing is using the larger pile foundation of depth, pile foundation is arranged on basement rock, this method Suitable for the relatively thin waters of soft soil layer, and cost is higher, in order to tackle the geological conditions of deep soft soil layer, on existing basis A kind of a kind of underwater bridge pier suction basis suitable for underwater basis of upper exploitation is significant.
The content of the invention
For insufficient existing for existing highway bridge basic technology, the utility model provides a kind of underwater bridge pier suction base Plinth, its object is to reduce the washed out degree of underwater foundation suction basis surrounding soil to a certain extent, overcome tradition Pier footing is difficult to the problem of application in deep soft soil layer under water, effectively improves the horizontally and vertically carrying of infrastructure Power, improve the stability of underwater infrastructure.
To achieve the above object, design technology project of the present utility model is:A kind of underwater bridge pier suction basis, its It is characterised by:It by same central shaft the main bucket of suction, skirt-type structure and annular groove and top pier structure composition, wherein inhaling Bucket of advocating is top closure, a kind of steel base barrel shaped structure of bottom opening, and osculum, annular groove are set at its top center It is looped around on the main bucket outer wall of suction, skirt-type structure is be looped around suction main bucket periphery columnar structured, and its top surface is evenly arranged There are permanent permeable circular hole and the bolt hole of connection top pier structure, top pier structure is the Bridge Pier of cylinder, is inhaled The top surface for bucket and the skirt-type structure of advocating connects into an entirety with top pier structure by ring flange and bolt arrangement.
In underwater bridge pier suction basis, to improve the stability of foundation of sea floor facility, the main bucket diameter of suction and height Degree ratio is 1:(1.0~2.0).
In underwater bridge pier suction basis, top pier structure radius is equal with the main bucket radius of suction, skirt-type structure Radius and the main bucket radius scale of suction are (1.5 ~ 2.0): 1.
In underwater bridge pier suction basis, ring flange radius between the main bucket radius of suction and skirt-type structure radius it Between.
In underwater bridge pier suction basis, start to set up three spacing successively in the main bucket bottom end of suction be The high size identical annular groove of 0.1 times of bucket, annular groove and the main bucket lateral wall angle of suction are 30 degree.
The utility model underwater foundation suction basis use when specific implementation method be:The main bucket of bottom suction and skirt first Formula structure is sunk under effective weight effect in water, sinks to the bottom, the main bucket of suction and annular groove are with cutting underwater weak soil Layer, osculum is always at the top of staving during this, and the main bucket of bottom suction and skirt-type dead load are sunk and pass through end;Then staving Top osculum connection drainage system, drains the water body in staving, negative pressure is formed in the main bucket of suction, bottom suction basis is negative Continue to sink under pressure effect;Then sink and pass through in the range of " skirt ", skirt top surface is provided with permanent permeable circular hole, and suction basis in bottom sinks Osculum is closed during to precalculated position, removes drainage system;Prefabricated top pier structure is consolidated by bolt arrangement again The main bucket of suction is scheduled on on the top surface of skirt-type structure, connecting into an entirety, whole construction terminates.
Compared with prior art, it is the advantages of the utility model underwater foundation suction basis:
(1)The problem of traditional pier footing is difficult to application in deep soft soil layer under water is overcome, saves Building wood Material, and installation process is simple, reduces construction and installation cost.
(2)The setting of annular groove improves the frictional force of side of the base plate and the soil body, enhances underwater foundation suction basis Globality, improve its vertical bearing capacity and withdrawal resistance.
(3)The setting of annular groove improves the ability of underwater soft soil layer Anti-erosion, improves the stabilization of surrounding soil Property, so as to extend the life-span on basis.
Brief description of the drawings
Fig. 1 is the structural representation on the utility model skirt-type suction basis.
Fig. 2 is the structure schematic top plan view on the utility model skirt-type suction basis.
Marginal data:1- skirt-type structures;2- tops pier structure;The main bucket of 3- suction;The permeable circular holes of 4-;5- osculums;6- Annular groove;7- bolt arrangements.
Embodiment
The utility model provides a kind of underwater bridge pier suction basis, to make the technical side that the utility model is realized Case, reached purpose and effect characteristic become apparent from clearly, further illustrating this practicality with reference to the accompanying drawings and detailed description New technical scheme.
As depicted in figs. 1 and 2, underwater bridge pier suction basis of the present utility model, a kind of underwater bridge pier suction Basis, it is characterised in that:It by same central shaft the main bucket of suction, skirt-type structure and annular groove and top pier structure group Into the wherein main bucket of suction is top closure, a kind of steel base barrel shaped structure of bottom opening, and draining is set at its top center Hole, annular groove are looped around on the main bucket outer wall of suction, and skirt-type structure is to be looped around columnar structured, its top of the main bucket periphery of suction Face is evenly arranged permanent permeable circular hole and the bolt hole of connection top pier structure, and top pier structure is the bridge of cylinder Beam pier, the top surface of the main bucket of suction and skirt-type structure and top pier structure by ring flange and bolt arrangement connect into one it is whole Body.
Described underwater bridge pier suction basis, the main bucket diameter of suction are 1 with height ratio:(1.0~2.0).
Described underwater bridge pier suction basis, top pier structure radius is equal with the main bucket radius of suction, skirt-type knot Structure radius and the main bucket radius scale of suction are (1.5 ~ 2.0): 1.
Described underwater bridge pier suction basis, ring flange radius between the main bucket radius of suction and skirt-type structure radius it Between.
Described underwater bridge pier suction basis, start to set up three spacing successively in the main bucket bottom end of suction be The high size identical annular groove of 0.1 times of bucket, annular groove and the main bucket lateral wall angle of suction are 30 degree.
The utility model underwater foundation suction basis use when specific implementation method be:The main bucket of bottom suction and skirt first Formula structure 1 is sunk in water under effective weight effect, sinks to the bottom, the main bucket 3 of suction and annular groove 6 cut underwater weak soil Stratum, osculum 5 is always at the top of staving during this, and the main bucket 3 of bottom suction and the deadweight of skirt-type structure 1 are sunk and pass through end;Connect Osculum 5 at the top of staving and connect drainage system, drain the water body in staving, negative pressure, bottom suction are formed in the main bucket 3 of suction Continue to sink under suction function in basis;Then sink and pass through in the range of " skirt ", skirt top surface is provided with permanent permeable circular hole 4, and bottom is inhaled Osculum 5 is closed in power basis when sinking to precalculated position, removes drainage system;Prefabricated top pier structure 2 is passed through into spiral shell again Stud structure 7 is fixed in the main bucket 3 of suction with the top surface of skirt-type structure 1, connecting into an entirety, and whole construction terminates.

Claims (5)

  1. A kind of 1. underwater bridge pier suction basis, it is characterised in that:It by same central shaft the main bucket of suction, skirt-type structure and ring Connected in star and top pier structure composition, the wherein main bucket of suction are top closures, and a kind of steel base of bottom opening is barrel-shaped Structure, osculum is set at its top center, annular groove is looped around on the main bucket outer wall of suction, and skirt-type structure is to be looped around suction master Bucket periphery it is columnar structured, its top surface is evenly arranged permanent permeable circular hole and the bolt hole of connection top pier structure, Top pier structure is the Bridge Pier of cylinder, and the main bucket of suction and the top surface of skirt-type structure pass through flange with top pier structure Disk and bolt arrangement connect into an entirety.
  2. 2. underwater bridge pier suction basis as claimed in claim 1, it is characterised in that the main bucket diameter of suction and height ratio For 1:(1.0~2.0).
  3. 3. underwater bridge pier suction basis as claimed in claim 1, it is characterised in that top pier structure radius and suction Main bucket radius is equal, and skirt-type structure radius and the main bucket radius scale of suction are (1.5 ~ 2.0): 1.
  4. 4. underwater bridge pier suction basis as claimed in claim 1, it is characterised in that ring flange radius is between the main bucket of suction Between radius and skirt-type structure radius.
  5. 5. underwater bridge pier suction as claimed in claim 1 basis, it is characterised in that the main bucket bottom end of suction start according to Secondary to set up three spacing as the high size identical annular groove of 0.1 times of bucket, annular groove presss from both sides with the main bucket lateral wall of suction Angle is 30 degree.
CN201720217227.0U 2017-03-08 2017-03-08 Underwater bridge pier suction basis Expired - Fee Related CN206815370U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720217227.0U CN206815370U (en) 2017-03-08 2017-03-08 Underwater bridge pier suction basis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720217227.0U CN206815370U (en) 2017-03-08 2017-03-08 Underwater bridge pier suction basis

Publications (1)

Publication Number Publication Date
CN206815370U true CN206815370U (en) 2017-12-29

Family

ID=60749882

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720217227.0U Expired - Fee Related CN206815370U (en) 2017-03-08 2017-03-08 Underwater bridge pier suction basis

Country Status (1)

Country Link
CN (1) CN206815370U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111472375A (en) * 2019-10-29 2020-07-31 南京林业大学 Stiffness composite suction type caisson foundation with convex edges

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111472375A (en) * 2019-10-29 2020-07-31 南京林业大学 Stiffness composite suction type caisson foundation with convex edges

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GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20171229

Termination date: 20190308