CN106193041A - A kind of marine static load pile-sinking device and construction method thereof - Google Patents
A kind of marine static load pile-sinking device and construction method thereof Download PDFInfo
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- CN106193041A CN106193041A CN201610798897.6A CN201610798897A CN106193041A CN 106193041 A CN106193041 A CN 106193041A CN 201610798897 A CN201610798897 A CN 201610798897A CN 106193041 A CN106193041 A CN 106193041A
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- pile
- truss
- pile body
- load
- wirerope
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
- E02D7/20—Placing by pressure or pulling power
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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
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Abstract
The invention discloses a kind of marine static load pile-sinking device and construction method thereof, including distribution in alignment, sink to the pile body under sea bed face and four barrel bases, four barrel bases are symmetrically distributed in the both sides of pile body, it is interval with suspension centre on four barrel base upper surfaces, inlet/outlet valve, pile body upper end is set with pile cover, pile cover upper end is fixedly connected with loading truss, load truss lower surface to be connected by vertical wirerope respectively with the suspension centre on four barrel bases, it is equipped with steel cable tensioner on every wirerope, make loading truss by downdrag by steel cable tensioner, the downdrag that loading truss is subject to is ultimately transferred to pile body, and then make pile body gradually sink, thus reach the purpose of static load pile sinking.Vertical load on wirerope of the present invention is all transformed into the sinking load of pile body, and it does not produce and sinks pile body without the horizontal component helped, and pile sinking load is big, efficiency is high；Construction is simple, convenient, it is not necessary to main equipment, has good economy and practicality.
Description
Technical field:
The present invention relates to marine pile sinking technology, particularly relate to a kind of marine static load pile-sinking device and construction method thereof.
Background technology:
Pile foundation has been widely used in harbour, ocean and science of bridge building field.At present, piling construction is at sea carried out
Typically having two class methods: a class is to add dynamic impact forces stake to be driven in seabed soil, another kind of is to add static ballast stake to be tied
Structure is pressed in seabed soil.
When at sea using pile driving barge piling, required special pile driving barge cost of use is high, there is sound pollution, to other
There is potential flutter failure in building, work progress is easily subject to the impact of stormy waves factor, particularly in river course, river mouth and tide
Flowing big marine site, the pile driving barge owing to water velocity is big, positioned by anchor hawser, shifted is positioned, displacement difficulty, and piling efficiency is low.
Visible, in the environment that dynamic impact should not be used to drive piles, static load pile sinking process need to be selected.
Chinese patent Authorization Notice No. CN2464778Y discloses the device of a kind of static load pile sinking waterborne, and it is mainly by stake
Stretcher on cap, cartridge type suction anchor, wirerope and wirerope is constituted, and makes the full foundation soil that sinks under the water of pile body by the pulling force of wirerope
In.Being limited in that of this patent: wirerope tilting action is on pile cover, it is assumed that wirerope pulling force is F, the angle of wirerope and horizontal plane
For θ, the vertical lower pulling force that the most each cartridge type suction anchor provides is only Fsin θ；If θ=30 °, Fsin θ=0.5F, the most only wirerope
The half of pulling force F is helpful to pile sinking, it is seen that its pile sinking load is less, inefficient；It addition, the horizontal component of wirerope pulling force F
Fcos θ not only to pile sinking without help, also can make cartridge type suction anchor produce tilt, rotate, and then reduce barrel base pile sinking energy
Power.Visible, simplicity to be developed, efficient static load pile-sinking device.
Summary of the invention:
In order to make up the deficiency of prior art problem, it is an object of the invention to provide and a kind of marine static load pile-sinking device and
Its construction method, its simple to operate, easy construction, provide a kind of reliable method for marine static load pile sinking.
Technical scheme is as follows:
Marine static load pile-sinking device, it is characterised in that four buckets that include distribution in alignment, that sink under sea bed face
Shape basis, four barrel bases are symmetrically distributed in the both sides of pile body, four barrel base upper surfaces are interval with suspension centre, turnover
Water valve, waits to sink that passing through pile body upper end is set with pile cover, and pile cover upper end is fixedly connected with loading truss, loading truss lower surface and four
Suspension centre on barrel base is connected by vertical wirerope respectively, and every wirerope is equipped with steel cable tensioner.
Described marine static load pile-sinking device, it is characterised in that described suspension centre is arranged on the top center of barrel base.
Described marine static load pile-sinking device, it is characterised in that described loading truss is loaded truss and two by centre
The prolongation of side loads truss and constitutes, and the middle midpoint loading truss is positioned on pile body central axis.
The construction method of marine static load pile-sinking device, it is characterised in that be embodied as step as follows:
1), pile body location is heavy with barrel base passes through:
Pile body is vertically located in plan injection point, then centered by pile body, lateral symmetry ground is altogether by under four barrel bases
Heavy contact sea bed, makes it sink to the degree of depth enough in seabed soil, construction knot by the inlet/outlet valve extracting vacuum of barrel base
Shu Hou, four barrel bases and pile body are distributed in line；
2), installation pile cover and the middle truss that loads:
Being enclosed within pile body by pile cover, then centre loads truss be placed on pile cover, pile cover and the middle truss that loads are by auxiliary
Device is helped to be mutually permanently connected；
3), the wirerope from nearest two barrel bases of pile body is installed:
To two barrel bases nearest from pile body, the suspension centre connected on barrel base making wirerope vertical loads with middle
Truss, is made by preliminary tensioning steel cable tensioner the wirerope tension of two barrel bases of connection load truss, forms rock-steady structure；
4), load the continued access of truss both sides in centre, extend loading truss:
Load the ground continued access of truss lateral symmetry in centre, extend loading truss, make loading truss can exceed that two ends farthest two
The surface of individual barrel base.
5), the wirerope of remaining two barrel bases is installed, and implements uniform load operation:
To two barrel bases farthest from pile body, make the vertical suspension centre connected on barrel base of wirerope and load purlin
Frame, makes the wirerope tension of connection the two barrel base load truss by preliminary tensioning steel cable tensioner；By the most gradually
Steel cable tensioner above four barrel bases of tensioning, makes the pulling force of wirerope become the sinking load of pile body, gradually pile body is passed through
Enter in sea bed；After pile body sinks to reaching predetermined value, static load piling construction i.e. completes.
The invention have the advantage that
1, four barrel bases of the present invention are symmetrically distributed in pile body both sides, and wirerope is vertically distributed connection barrel base and adds
Carrying truss, on wirerope, vertical load is all transformed into the sinking load of pile body, and it will not produce and sink pile body without the level helped
Component, pile sinking load is big, efficiency is high.
2, the present invention constructs simple, conveniently, it is not necessary to main equipment, economical and practicality.
Accompanying drawing illustrates:
Fig. 1 is sea of the present invention static load pile-sinking device front view.
Fig. 2 is sea of the present invention static load pile-sinking device top view.
Fig. 3 is barrel base symmetry injection pile foundation both sides of the present invention sea bed schematic diagrams.
Fig. 4 is that the present invention installs pile cover and middle loading truss schematic diagram.
Fig. 5 is that two barrel bases of Adjacent Pile Foundation of the present invention are installed and stretch-draw wirerope schematic diagram.
Fig. 6 is that the present invention loads truss both sides lengthening continued access schematic diagram.
Description of reference numerals: 1, barrel base；2, inlet/outlet valve；3, suspension centre；4, wirerope；5, steel cable tensioner；6, pile body；
7, pile cover；8, truss is loaded；A, sea bed face；B, sea level.
Detailed description of the invention:
See accompanying drawing:
Marine static load pile-sinking device, including distribution in alignment, four barrel bases 1 sinking under sea bed face, four
Individual barrel base 1 is symmetrically distributed in the both sides of pile body 6, and four barrel base 1 upper surfaces are interval with suspension centre 3, inlet/outlet valve
2, for connecting external pipe extraction negative pressure, wait to sink that passing through pile body 6 upper end is set with pile cover 7, pile cover 7 upper end is fixedly connected with and adds
Carry truss 8, load truss 8 lower surface and be connected by vertical wirerope 4 respectively with the suspension centre 3 on four barrel bases 1, every steel
It is equipped with steel cable tensioner 5 on cable 4, makes loading truss 8 by downdrag by the steel cable tensioner 5 on tensioning wirerope 4, add
The downdrag that load truss 8 is subject to is ultimately transferred to pile body 6, and then makes pile body 6 gradually sink, thus reaches the mesh of static load pile sinking
's.
Suspension centre sets 3 and puts the top center at barrel base 1.
For the ease of transport and installation, load truss and typically use multistage truss assembling to form；Load truss 8 to be added by centre
The prolongation carrying truss and both sides equal length thereof loads truss composition, makes loading truss can exceed that farthest two barrel bases in two ends
The surface of 1, the middle midpoint loading truss is positioned on pile body central axis, and the midpoint loading truss 8 after overall package is also
It is positioned on pile body central axis.
Load truss 8 and should have enough intensity and rigidity, it is possible to bear axle power, shearing and moment of flexure that wirerope 4 passes over,
And there is enough safety stocks.
Load the position contacted with wirerope 4 on truss 8, reinforcement steel plate should be used to strengthen, prevent stress from concentrating and send out the raw bar of y
Part local yielding deforms.
Use assistant board, bolt to connect or other way, make loading truss 8 and pile cover 7 connect into entirety, and pile cover 7
On should be provided with limit configuration, make loading truss 8 in use will not slide, come off, it is ensured that carry truss 8 monolithic stability.
The top of wirerope 4 connects steel cable tensioner 5, and it can make wirerope 4 tensioning, and is provided that required enough pulling force.
The construction method of a kind of marine static load pile-sinking device, is embodied as step and is described in detail as follows:
1), pile body location is heavy with barrel base passes through:
At the offshore construction point specified, pile body 6 is vertically located in plan injection point by use equipment, and depth of penetration is can guarantee that
The perpendicularity of pile body 6 self and certain vertical load can be born and do not occur lateral displacement to be as the criterion.Again centered by pile body 6,
Sink to contacting sea bed by four barrel bases 1 altogether to lateral symmetry, make it by inlet/outlet valve 2 extracting vacuum of barrel base 1
Sink to the degree of depth enough in seabed soil；After construction terminates, four barrel bases 1 and pile body 6 are distributed in line；
Usually, after a hemisphere face body is inlayed at pile body 6 top, then can put pile cover 7, pile cover 7 carries corresponding indent
Sphere hole；So, the connection between pile cover 7 and pile body 6 is equivalent to point cantact, and it transmits vertical load, and does not transmits
Moment of flexure, it is ensured that pile body 6 is not occurred lateral displacement along vertical press-in sea bed.
2), installation pile cover and the middle truss that loads:
Pile cover 7 and auxiliary device are enclosed within pile body 6, then centre is loaded truss 8 are placed on pile cover 7.Pile cover 7 is with middle
Load truss 8 to be mutually permanently connected by auxiliary device；
Limit configuration should be provided with on pile cover 7 or pile body 6, make loading truss 8 in use will not slide, come off, really
Protect the monolithic stability carrying truss 8.
3), the wirerope from nearest two barrel bases of pile body is installed:
To two barrel bases nearest from pile body 6, make the vertical suspension centre 3 connected on barrel base 1 of wirerope 4 with middle
Load truss 8, made by preliminary tensioning steel cable tensioner 5 wirerope 4 tension of two barrel bases 1 of connection load truss 8, formed
Rock-steady structure；
Tensioning steel cable tensioner 5 herein, only makes wirerope 4 hold loading truss 8 and forms rock-steady structure, facilitate follow-up adding
Carry continued access and the prolongation of truss.
4), load the continued access of truss both sides in centre, extend loading truss:
Load the ground continued access of truss 8 lateral symmetry in centre, extend loading truss, make loading truss 8 can exceed that two ends are farthest
The surface of two barrel bases 1；
Load the part of the mutual continued access of truss, be provided with junction steel plate and bolt hole, use the fixing connection of bolt.Junction should
Greatest axis power, shearing and the moment of flexure in work progress can be born, and there is certain safety stock.
5), the wirerope of remaining two barrel bases is installed, and implements uniform load operation:
To two barrel bases farthest from pile body 6, make the vertical suspension centre 3 connected on barrel base 1 of wirerope 4 and load
Truss 8, makes wirerope 4 tension of connection the two barrel base 1 load truss 8 by preliminary tensioning steel cable tensioner 5；
So far, four barrel base the most tentatively tensionings, pullings load truss 8, form stable loading system；Simultaneously by
The gradually steel cable tensioner 5 above four barrel bases of tensioning, and keep the pulling force of every wirerope 4 essentially identical, make drawing of wirerope 4
Power becomes the sinking load of pile body 6, gradually in pile body 6 injection sea bed；
In static load pile driving process, the levelness loading truss 8 should be kept.If finding, loading truss 8 produces, and should pass through
Adjust the pulling force on diverse location wirerope 4, make loading truss 8 return level；After pile body 6 sinks to reaching predetermined value, pass through
After detecting the satisfied requirement of its plummet degree, static load piling construction i.e. completes.
After utilizing the present invention carried device static load pile sinking to terminate, unclamp each steel cable tensioner 5, take off wirerope 4, remove and load
Truss 8, by inlet/outlet valve 2 water filling in bucket of each barrel base, barrel base gradually moves up and finally extracts sea bed,
The each barrel base of lift-off i.e. completes the dismounting work of the proposed device of the present invention.
The present invention is not limited to above-mentioned detailed description of the invention, according to foregoing, according to the ordinary technical knowledge of this area
And customary means, without departing under the present invention above-mentioned basic fundamental thought premise, the present invention can also make other various ways
Equivalent modifications, replace or change, within all falling within protection scope of the present invention.
Claims (4)
1. a marine static load pile-sinking device, it is characterised in that include distribution in alignment, sink under sea bed face four
Barrel base, four barrel bases are symmetrically distributed in the both sides of pile body, four barrel base upper surfaces are interval with suspension centre, enter
Outlet valve, waits to sink that passing through pile body upper end is set with pile cover, and pile cover upper end is fixedly connected with loading truss, loads truss lower surface and four
Suspension centre on individual barrel base is connected by vertical wirerope respectively, and every wirerope is equipped with steel cable tensioner.
Marine static load pile-sinking device the most according to claim 1, it is characterised in that described suspension centre is arranged on barrel base
Top center.
Marine static load pile-sinking device the most according to claim 1, it is characterised in that described loading truss is loaded by centre
The prolongation of truss and both sides thereof loads truss and constitutes, and the middle midpoint loading truss is positioned on pile body central axis.
4. the construction method of a marine static load pile-sinking device, it is characterised in that be embodied as step as follows:
1), pile body location is heavy with barrel base passes through:
Pile body is vertically located in plan injection point, then centered by pile body, four barrel bases are sunk to connecing by lateral symmetry ground altogether
Touch sea bed, make it sink to the degree of depth enough in seabed soil by the inlet/outlet valve extracting vacuum of barrel base, after construction terminates,
Four barrel bases and pile body are distributed in line；
2), installation pile cover and the middle truss that loads:
Being enclosed within pile body by pile cover, then centre loads truss be placed on pile cover, pile cover and the middle truss that loads are filled by auxiliary
Put and be mutually permanently connected；
3), the wirerope from nearest two barrel bases of pile body is installed:
To two barrel bases nearest from pile body, the suspension centre connected on barrel base making wirerope vertical loads purlin with middle
Frame, is made by preliminary tensioning steel cable tensioner the wirerope tension of two barrel bases of connection load truss, forms rock-steady structure；
4), load the continued access of truss both sides in centre, extend loading truss:
Load the ground continued access of truss lateral symmetry in centre, extend loading truss, make loading truss can exceed that farthest two buckets in two ends
The surface on shape basis；
5), the wirerope of remaining two barrel bases is installed, and implements uniform load operation:
To two barrel bases farthest from pile body, make the vertical suspension centre connected on barrel base of wirerope and load truss, logical
Crossing preliminary tensioning steel cable tensioner makes the wirerope tension of connection the two barrel base load truss；By the most gradually tensioning four
Steel cable tensioner above individual barrel base, makes the pulling force of wirerope become the sinking load of pile body, gradually pile body injection sea bed
In；After pile body sinks to reaching predetermined value, static load piling construction i.e. completes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610798897.6A CN106193041A (en) | 2016-08-31 | 2016-08-31 | A kind of marine static load pile-sinking device and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610798897.6A CN106193041A (en) | 2016-08-31 | 2016-08-31 | A kind of marine static load pile-sinking device and construction method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN106193041A true CN106193041A (en) | 2016-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610798897.6A Pending CN106193041A (en) | 2016-08-31 | 2016-08-31 | A kind of marine static load pile-sinking device and construction method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108560615A (en) * | 2018-02-05 | 2018-09-21 | 中交第三航务工程局有限公司 | A kind of sea single-pile foundation horizontally loading test method and system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2464778Y (en) * | 2000-12-07 | 2001-12-12 | 天津大学 | Static loading pile-sinking apparatus on water |
| CN102704503A (en) * | 2012-05-30 | 2012-10-03 | 天津大学 | Offshore submerged box type foundation structure and construction method thereof |
| CN102704502A (en) * | 2012-05-30 | 2012-10-03 | 天津大学 | Offshore submerged box type foundation structure and construction method thereof |
| CN202689022U (en) * | 2012-06-25 | 2013-01-23 | 中国水电顾问集团华东勘测设计研究院 | Offshore wind power truss single pile base structure with negative pressure tube |
| CN206015681U (en) * | 2016-08-31 | 2017-03-15 | 合肥学院 | A kind of marine static load pile-sinking device |
-
2016
- 2016-08-31 CN CN201610798897.6A patent/CN106193041A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2464778Y (en) * | 2000-12-07 | 2001-12-12 | 天津大学 | Static loading pile-sinking apparatus on water |
| CN102704503A (en) * | 2012-05-30 | 2012-10-03 | 天津大学 | Offshore submerged box type foundation structure and construction method thereof |
| CN102704502A (en) * | 2012-05-30 | 2012-10-03 | 天津大学 | Offshore submerged box type foundation structure and construction method thereof |
| CN202689022U (en) * | 2012-06-25 | 2013-01-23 | 中国水电顾问集团华东勘测设计研究院 | Offshore wind power truss single pile base structure with negative pressure tube |
| CN206015681U (en) * | 2016-08-31 | 2017-03-15 | 合肥学院 | A kind of marine static load pile-sinking device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108560615A (en) * | 2018-02-05 | 2018-09-21 | 中交第三航务工程局有限公司 | A kind of sea single-pile foundation horizontally loading test method and system |
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Application publication date: 20161207 |