CN105040718B - A kind of spud leg pitch of self-elevating drilling platform - Google Patents
A kind of spud leg pitch of self-elevating drilling platform Download PDFInfo
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- CN105040718B CN105040718B CN201510332722.1A CN201510332722A CN105040718B CN 105040718 B CN105040718 B CN 105040718B CN 201510332722 A CN201510332722 A CN 201510332722A CN 105040718 B CN105040718 B CN 105040718B
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Abstract
The invention discloses the spud leg pitch of a kind of self-elevating drilling platform, described spud leg pitch be surrounded by three rectangle sides and cross section outer rim be the truss structure of equilateral triangle, described spud leg pitch includes leg chord, main brace bar, secondary hound and internal overarm support.Described three leg chord are respectively arranged on the apex of described equilateral triangle, each rectangle sides of described spud leg pitch all includes passing through to be weldingly connected with two adjacent leg chord respectively in the two ends of main brace bar and secondary hound, described main brace bar and the secondary hound laying respectively on this rectangle sides diagonal.Compared with prior art, the X-type structure pile leg section of the present invention is away from the pipe fitting negligible amounts made, save material cost, and the quantity of its pipe node is the most less, the quantities of welding is substantially reduced, simultaneously as suffered wind load and seaway load its stability of relatively low event are than prior art more preferably.
Description
Technical field
The present invention relates to a kind of spud leg pitch, particularly to the spud leg pitch of a kind of self-elevating drilling platform.
Background technology
The pile leg structure of self-elevating drilling platform can be generally divided into case type and the big class of truss-like two, case type
It is simple to manufacture and the feature such as firm in structure although spud leg has, but is generally used for operating depth 60～70m,
Operating water depth is shallow.Deep water jack-up unit many employings truss framed leg, truss framed leg can greatly reduce
Water resistance and the impact of seaway load so that operating water depth significantly improves, can as deep as 120 meters or
Deeper.
And for truss type pile leg structure, in the prior art, generally use can use K-type, double K-type or
X-type structure, following table is the contrast of these three type spud leg.
By the contrast of upper table, it is seen that K-type spud leg not only rod member quantity is many, welding node is many, cost
Height, and the wind load born is big, so inferior position is more apparent compared with double K-types and X-type spud leg.Double K-type stakes
The rod member quantity that lower limb uses is more than X-type, and the wind load born is also big than X-type, but the technology of double K-type
More many than X-type maturation, its precision to be easily controlled compared with for X-type spud leg.United States Patent (USP)
US20030049077A1 discloses the pile leg structure of a kind of self-elevating drilling platform, and this pile leg structure is double
The pile legs of self-elevating drilling platform of K-type structure.But application X-type spud leg not yet being had to Patents is remembered
Record, its reason is that many technical barriers also fail to overcome, so at present for developing a kind of rod member quantity relatively
Less, welding job amount is less, wind area is less and double K-type spud leg phases with prior art in other respects
When X-type spud leg be the problem needing solution badly.
Summary of the invention
The purpose of the present invention, it is simply that provide the stake of a kind of self-elevating drilling platform in order to solve the problems referred to above
Leg section away from structure, this structure is the minimum structural unit of X-type spud leg, by the one of this spud leg pitch being
The research of row and design, can make spud leg not only materials more save, welding engineering amount is greatly reduced, wind surface
Long-pending little, and the raising of its stability, operating water depth is also greatly improved.
The object of the present invention is achieved like this:
The spud leg pitch of a kind of self-elevating drilling platform, described spud leg pitch is surrounded by three rectangle sides
And cross section outer rim is the truss structure of equilateral triangle, described spud leg pitch includes three leg chord, institute
Stating three leg chord and be respectively arranged on the apex of described equilateral triangle, described three rectangle sides are followed successively by
First rectangle sides, the second rectangle sides and the 3rd rectangle sides；
Each rectangle sides of described spud leg pitch all includes laying respectively at the master on this rectangle sides diagonal
Hound and secondary hound, the two ends of described main brace bar and secondary hound respectively with two adjacent supporting leg strings
Bar is by being weldingly connected；
Described spud leg pitch also includes the first internal overarm support, the second internal overarm support and the 3rd internal overarm support, described main brace
Bar is provided with upper node and the lower node of symmetrical distribution, one end of described first internal overarm support and described the
The upper node of one rectangle sides is connected, under the other end of described first internal overarm support and described second rectangle sides
Node is connected, and one end of described second internal overarm support is connected with the upper node of described second rectangle sides, and described the
The other end of two internal overarm supports is connected with the lower node of described 3rd rectangle sides, one end of described 3rd internal overarm support
It is connected with the upper node of described 3rd rectangle sides, the other end of described 3rd internal overarm support and described first rectangle
The lower node of side is connected.
The spud leg pitch of above-mentioned a kind of self-elevating drilling platform, wherein, described secondary hound includes being positioned at together
Upper short hound on one straight line and under short hound, in described short hound one end and described main brace bar
Point is connected, and the other end upwardly extends and is connected with described leg chord, described under short hound one end and described master
Hound midpoint is connected, and the other end downwardly extends and is connected with described leg chord.
The pile leg structure of above-mentioned a kind of self-elevating drilling platform, wherein, described main brace bar includes being positioned at together
On one straight line and end to end upper main brace bar, middle main brace bar and lower main brace bar, described upper main brace
Bar is identical with the thickness of lower main brace bar and is less than described middle main brace bar；Described first internal overarm support, in second
Strut, the 3rd internal overarm support, upper short hound and under short hound be all connected on described middle main brace bar.
The pile leg structure of above-mentioned a kind of self-elevating drilling platform, wherein, described middle main brace bar a length of
1200mm。
The pile leg structure of above-mentioned a kind of self-elevating drilling platform, wherein, described main brace bar and secondary hound
Between angle be 120-140 °.
The spud leg pitch of above-mentioned a kind of self-elevating drilling platform, wherein, the upper node of described main brace bar and
Lower node is 325mm with the distance at the midpoint of this main brace bar.
The spud leg pitch of above-mentioned a kind of self-elevating drilling platform, wherein, it is characterised in that described supporting leg string
The cylindrical structure of bar, this leg chord includes two semi-circular plates and a rack-plate, said two semi-circular plate pair
Claim to be welded in described rack-plate both sides；The thickness of described rack-plate is 165.1mm, addendum width is 950mm,
Tooth root width is 550mm, and the pressure angle of described rack-plate tooth bar is 28 °, tooth bar modulus is 100mm, institute
The outer curvature radius stating semi-circular plate is 260mm, incurvature radius is 229.1mm.
Compared with prior art, the X-type structure pile leg section of the present invention away from pipe fitting negligible amounts, save
Material cost, meanwhile, the quantity of its pipe node is the most less, and the quantities of welding is substantially reduced.For this
Spud leg pitch in bright does not use triatic stay, and with main brace bar as critical piece, puts down at jack-up rigs
Significantly reducing wind area during platform towage, the wind load suffered by spud leg reduces accordingly, stability
Good；And under drilling condition, it being greatly reduced the impact of wind load and wave load so that jack up bores
Platform shaft operating water depth is greatly improved.Moreover, while the spud leg of the present invention meets above advantage,
In other technologies index suitable with of the prior art pair of K-type spud leg.
Accompanying drawing explanation
Fig. 1 is the three dimensional structure schematic diagram of the present invention；
Fig. 2 is the two-dimensional structure schematic diagram of the present invention；
Fig. 3 is the cut-away view at first rectangle sides of the present invention；
Fig. 4 is the top view of Fig. 1；
Fig. 5 is the schematic diagram of the rack-plate in the present invention；
Fig. 6 is the structural representation of the leg chord in the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
Refering to Fig. 1, Fig. 2 and Fig. 4, figure shows the spud leg pitch of a kind of self-elevating drilling platform, stake
Leg section away from be surrounded by three rectangle sides and cross section outer rim be the truss structure of equilateral triangle, spud leg
Three rectangle sides of pitch are followed successively by the first rectangle sides the 1, second rectangle sides 2 and the 3rd rectangle sides
3。
Spud leg pitch includes three leg chord, respectively first leg chord the 4, second leg chord 5,
3rd leg chord 6, three leg chord are respectively arranged on the apex of equilateral triangle.This triangle purlin
Shelf structure compared to existing technology among tetragon spud leg structural stability more preferable, and the tubing quantity used is also
Decrease.The spud leg pitch of existing self-elevating drilling platform the most all can use triatic stay structure, and this
Spud leg pitch among invention all uses hound structure, therefore significantly reduces wind surface during towage
Long-pending, the wind load suffered by spud leg reduces accordingly, good stability；And under drilling condition, subtract greatly
Little stream load and the impact of wave load so that self-elevating drilling platform operating water depth is greatly improved.
First rectangle sides 1 includes the first main brace bar 11 He laying respectively on this rectangle sides diagonal
First secondary hound 12, the two ends of the first main brace bar 11 and the first secondary hound 12 are respectively with adjacent two
Root leg chord is by being weldingly connected, it is accordingly required in particular to it is noted that the first main brace bar 11 and first is secondary oblique
Distance between the strut 12 two end points on the first leg chord 4 and the first main brace bar 11 and first
Distance between the secondary hound 12 two end points on second leg chord 5 is equal, and first is main
Between hound 11 and the first secondary hound 12, angle is 120-140 °, the most just defines an X knot
Structure.First secondary hound 12 include being located along the same line first on short hound 121 and first time short
Hound 122, on first, short hound 121 one end is connected with the first main brace bar 11 midpoint, the other end to
Upper extension is connected with the first leg chord 4, first time short hound 122 one end and the first main brace bar 11
Midpoint is connected, and the other end downwardly extends and is connected with the second leg chord 5.This makes whole spud leg use in a large number
Short component, stock utilization significantly improves, and can save substantial amounts of steel and save construction cost.
Second rectangle sides 2 includes the second main brace bar 21 He laying respectively on this rectangle sides diagonal
Second secondary hound 22, the two ends of the second main brace bar 21 and the second secondary hound 22 are respectively with adjacent two
Root leg chord is by being weldingly connected, it is accordingly required in particular to it is noted that the second main brace bar 21 and second is secondary oblique
Distance between the strut 22 two end points on the second leg chord 5 and the second main brace bar 21 and second
Distance between the secondary hound 22 two end points on the 3rd leg chord 6 is equal, and second is main
Between hound 21 and the second secondary hound 22, angle is 120-140 °.Second secondary hound 22 includes position
Short hound 221 and second time short hound 222, short hound on second on same straight line second
221 one end are connected with the second main brace bar 21 midpoint, and the other end upwardly extends and is connected with the second leg chord 5,
Second time short hound 222 one end is connected with the second main brace bar 21 midpoint, and the other end downwardly extends and the
Three leg chord 6 are connected.
3rd rectangle sides 3 includes the 3rd main brace bar 31 He laying respectively on this rectangle sides diagonal
3rd secondary hound 32, the two ends of the 3rd main brace bar 31 and the 3rd secondary hound 32 are respectively with adjacent two
Root leg chord is by being weldingly connected, it is accordingly required in particular to it is noted that the 3rd main brace bar 31 and the 3rd is secondary oblique
Distance between the strut 32 two end points on the 3rd leg chord 6 and the 3rd main brace bar 31 and the 3rd
Distance between the secondary hound 32 two end points on first leg chord 4 is equal, and the 3rd is main
Between hound 31 and the 3rd secondary hound 32, angle is 120-140 °.3rd secondary hound 32 includes position
Short hound 321 and the 3rd time short hound 322, short hound on the 3rd on same straight line the 3rd
321 one end are connected with the 3rd main brace bar 31 midpoint, and the other end upwardly extends and is connected with the 3rd leg chord 6,
3rd time short hound 322 one end is connected with the 3rd main brace bar 31 midpoint, and the other end downwardly extends and the
One leg chord 4 is connected.
Refering to Fig. 1, Fig. 2 and Fig. 3, the spud leg pitch of a kind of self-elevating drilling platform also includes the first internal stay
Bar the 7, second internal overarm support 8 and the 3rd internal overarm support 9.First main brace bar 11 is provided with symmetrical distribution
First on node 111 and the first lower node 112, the upper node 111 of the first main brace bar and lower node 112
It is 325mm with the distance at the midpoint of this main brace bar.Second main brace bar 21 is provided with symmetrical distribution
Second on node and the second lower node, the midpoint of node and the second lower node and this main brace bar on second
Distance is 325mm.3rd main brace bar 31 is provided with on the 3rd of symmetrical distribution the node and the 3rd time
Node, on the 3rd, the distance at the midpoint of node and the 3rd lower node and this main brace bar is 325mm.More than will
Node is symmetrical and distance is designed to 325mm primarily to prevent stress from concentrating, and this design is also convenient for
Welding.
One end of first internal overarm support 7 is connected with the first lower node 112, the other end of the first internal overarm support 7 and
On three, node is connected, and one end of the second internal overarm support 8 is connected with node on first 111, the second internal overarm support 8
The other end and the second lower node are connected, and one end of the 3rd internal overarm support 9 is connected with node on second, the 3rd internal stay
The other end of bar 9 and the 3rd lower node are connected.Three internal overarm supports play support between two main brace bars and make
With, and it forms a rock-steady structure being similar to triangle so that the spud leg stability of self-elevating drilling platform is more
Good.
It should be noted that the first above-mentioned main brace bar the 11, second main brace bar 21 and the 3rd main brace
Bar 31 also has special character, due to the first main brace bar the 11, second main brace bar 21 and the 3rd main brace
Bar 31 has identical physical dimension, therefore is introduced as a example by the first main brace bar 11.First main brace
Bar 11 includes leading tiltedly in main brace bar 113, first on be located along the same line and be weldingly connected from beginning to end first
Strut 114 and first time main brace bar 115, the upper end of main brace bar 113 and the second leg chord on first
5 by being weldingly connected, and on first, in the lower end of main brace bar 113 and first, the upper end of main brace bar 114 leads to
Crossing and be weldingly connected, in first, the lower end of main brace bar 114 and the upper end of first time main brace bar 115 are by weldering
Connecing connected, the lower end of first time main brace bar 115 and the first leg chord 4 are by being weldingly connected；On first
The external diameter of main brace bar 113 and first time main brace bar 115 is 273mm, and thickness is 15.09mm, first
The external diameter of middle main brace bar 114 is 273mm, and thickness is 18.26mm, and length L4 is 1200mm.Also need to
It is noted that all of internal overarm support, upper short hound and under short hound be all to be welded in middle main brace bar
On.So the reason of design is not only to weld upper and lower short hound at main brace bar from central spot, also
Being welded with internal overarm support, stress is concentrated very much herein, is easily caused strut disrumpent feelings, therefore to prevent stress mistake
Greatly, local thickeies this section of main brace bar thickness.The measure that main brace bar thick middle both sides are thin, not only acts as knot
The effect that structure is strengthened, also a saving the great amount of cost of steel.Length L4 of middle main brace bar is 1200mm,
One is to avoid high stress concentration zone, and two is to facilitate internal overarm support to weld.
Refering to Fig. 5 and Fig. 6, three leg chord of pile legs of self-elevating drilling platform pitch have identical knot
Structure, is now introduced its structure as a example by the first leg chord 4.The first cylindrical knot of leg chord 4
Structure, this leg chord includes two semi-circular plates 41 and a rack-plate 42, two semi-circular plates 41 be symmetrically welded in
Rack-plate 42 both sides；The thickness L1 of rack-plate 42 is 165.1mm, addendum width L2 is 950mm, tooth
Root width L3 is 550mm, and the pressure angle of rack-plate 42 tooth bar is 28 °, tooth bar modulus (the most adjacent two teeth
Ratio with the tooth pitch between side profile Yu pi) it is 100mm, the outer curvature radius of two semi-circular plates 41
R1 is 260mm, incurvature radius R2 is 229.1mm.
Dimensions above is chosen, among our prior art that has been global alignment after double K-type spud legs, logical
Crossing what FEM calculation drew, existing choose dimensions above makes brief description.
Table 1
| Spud leg part dimension | Existing pair of K-type pile leg structure | The X-type of the present invention |
| Rack-plate thickness (mm) | 177.8 | 165.1 |
| Addendum width (mm) | 838.2 | 950 |
| Tooth root width (mm) | 464.7 | 550 |
| Rack-plate modulus | 97 | 100 |
| Pressure angle | 30° | 28° |
| Semi-circular plate outer curvature radius (mm) | 222.25 | 260 |
| Semi-circular plate incurvature radius (mm) | 139.7 | 221.9 |
Table 1 is the part dimension of the X-type spud leg of the double K-type spud leg of a certain model and the present invention among prior art
Contrast table.For rack-plate thickness, addendum width and tooth root width these three parameter, the X-type stake of the present invention
The rack-plate thickness of lower limb structure is than existing pair of K-type pile leg structure thin 7%, but tooth bar width to exceed
12%.Improving the design of rack-plate size, be to find based in design, the effect of rack-plate is subject to spud leg
Structure is along the flexural deformation of rack-plate width, and semicircle is mainly passed through in the flexural deformation of through-thickness
Plate bears.Therefore, the rack-plate size that the present invention proposes, it is simply that acted on the former of this member stress
Then.The rack-plate that the present invention proposes weight in unit length is basic with the rack-plate of double K-type pile leg structures
Identical, the most only from rack-plate this, on the basis of not increasing material weight and cost, according to
The rack-plate size of the distribution situation reasonably optimizing of power, the selection of material is more reasonable.
For rack-plate modulus and pressure angle the two parameter, modulus and the pressure angle of the rack-plate of the present invention divide
Not being 100 and 28 °, this is anti-shearing at the stressing conditions considering rack and pinion engagement and tooth root
Choose after intensity.Because tooth bar modulus is the biggest, the ability that tooth bar bears external applied load is the strongest；Pressure angle is the biggest,
Shear strength at tooth root is the best.The profile of tooth of present invention design, have passed through the most thorough Strength co-mputation,
Consider above-mentioned factor, after comparing within the specific limits, 100 moduluses finally chosen and 28 ° of pressure
Angle.
For the interior outer curvature radius the two parameter of semi-circular plate, the semi-circular plate external diameter of present invention design is more existing
The semi-circular plate external diameter of double K-type pile leg structures want big, this is primarily due to the reason that rack-plate width broadens.
Additionally, the thickness of semi-circular plate greatly reduces, it is only the 46% of double K-type pile leg structure semi-circular plate thickness.This
The reason of sample design is that we find in the design process, and tooth bar thickness of slab is mainly born in the effect of semi-circular plate
Bending load on degree direction.Due to the shape of semi-circular plate, it is caused to bear along rack-plate thickness direction
The energy of bending load is more many than general steel plate is eager to excel, and through careful accurate calculating, the present invention sets
The semi-circular plate gauge of meter can enough meet the requirement of strength of spud leg main chord, therefore bigger the subtracting of the present invention
The thickness of little semicircle is the most reliably.Meanwhile, the minimizing of semi-circular plate thickness, greatly reduce material
The weight of material: be made up of two parts semi-circular plate in view of a chord member, a pile lower limb has 3 main chords, and one
Individual platform at least three pile lower limb, and spud leg length is more than 100 meters, uses the semi-circular plate thickness of the present invention
Pile leg structure, compared with the weight of existing pile leg structure, decreases the spud leg weight of 38.6%, it is therefore apparent that
This can be saved lot of materials and reduce purchase cost.
Table 2
| Technique effect | Existing pair of K-type pile leg structure | The X-type of the present invention |
| Wind load KN | 68.369 | 61.390 |
| Seaway load KN | 1111.3 | 809 |
Certainly depositing under operating mode identical, the depth of water is 106.7m, and wind direction wave is to during for 0 °, and air gap height is 15.24m,
Double K-type pile leg structures and the X-type spud leg stressing conditions such as table 2 of the present invention.Owing to X-type spud leg caliber is little,
For the most double K-type pile leg structures, the external load being subject to significantly reduces, and wind load reduces 10%, wave
Load reduces 27%.
Through above-mentioned analysis, we can be clearly understood that, for comparing more double K-type spud leg, and the present invention
Size during middle X-type spud leg is designed to such as table 1 is improved.By research spud leg all parts
Stressing conditions and feature thereof, in the case of meeting each parts force request and bearing capacity, change spud leg each
The size of individual parts, nor affects on the operation of self-elevating drilling platform while having saved great amount of cost and size
Ability, table 2 lists the technical parameter that spud leg is different, right from the technique effect of double K-types and X-type spud leg
Among Bi, it is known that the performance of patent of the present invention is more preferable compared with in prior art pair of K-type spud legs.
The cross section of spud leg pitch is arranged to triangular structure by the present invention, has used compared with quadrilateral structure
Tubing quantity reduces, and the present invention all uses hound structure, in the same circumstances its ratio triatic stay structure
The power being subject to is much smaller, and meanwhile, the most a large amount of use of the present invention has arrived short component, and stock utilization significantly improves.
The present invention carries out careful contrast also by with of the prior art pair of K-type spud leg and uses FEM calculation,
Obtain the optimum-size of each parts, in the case of bearing capacity is identical with double K-type spud legs, saved
Material thus cost reduce.Spud leg pitch in the present invention does not use triatic stay to be main portion with main brace bar
Part, significantly reduces wind area during self-elevating drilling platform towage, the wind load suffered by spud leg
Corresponding minimizing, good stability；And under drilling condition, it is greatly reduced stream load and wave load
Impact so that self-elevating drilling platform operating water depth is greatly improved, and uses triangular form truss structure also may be used
Increase the stability of spud leg.
Above example is used for illustrative purposes only, rather than limitation of the present invention, relevant technical field
Technical staff, without departing from the spirit and scope of the present invention, it is also possible to make various conversion or change
Type, the technical scheme of the most all equivalents also should belong to scope of the invention, should be limited by each claim
Fixed.
Claims (7)
1. the spud leg pitch of a self-elevating drilling platform, it is characterised in that described spud leg pitch is by three
Individual rectangle sides surrounds and cross section outer rim is the truss structure of equilateral triangle, and described spud leg pitch includes
Three leg chord, described three leg chord are respectively arranged on the apex of described equilateral triangle, and described three
Individual rectangle sides is followed successively by the first rectangle sides, the second rectangle sides and the 3rd rectangle sides；
Each rectangle sides of described spud leg pitch all includes laying respectively at the master on this rectangle sides diagonal
Hound and secondary hound, the two ends of described main brace bar and secondary hound respectively with two adjacent supporting leg strings
Bar is by being weldingly connected；
Described spud leg pitch also includes the first internal overarm support, the second internal overarm support and the 3rd internal overarm support, described main brace
Bar is provided with upper node and the lower node of symmetrical distribution, one end of described first internal overarm support and described the
The upper node of one rectangle sides is connected, under the other end of described first internal overarm support and described second rectangle sides
Node is connected, and one end of described second internal overarm support is connected with the upper node of described second rectangle sides, and described the
The other end of two internal overarm supports is connected with the lower node of described 3rd rectangle sides, one end of described 3rd internal overarm support
It is connected with the upper node of described 3rd rectangle sides, the other end of described 3rd internal overarm support and described first rectangle
The lower node of side is connected.
The spud leg pitch of a kind of self-elevating drilling platform the most as claimed in claim 1, it is characterised in that
Described secondary hound include the upper short hound that is located along the same line and under short hound, described short diagonal brace
Bar one end is connected with described main brace bar midpoint, and the other end upwardly extends and is connected with described leg chord, described
Under short hound one end be connected with described main brace bar midpoint, the other end downwardly extends and described leg chord phase
Even.
3. the pile leg structure of a kind of self-elevating drilling platform as described in claim 1 and 2, its feature exists
In, described main brace bar includes being located along the same line and end to end upper main brace bar, middle main brace bar
With lower main brace bar, described upper main brace bar is identical with the thickness of lower main brace bar and is less than described middle main brace
Bar；Described first internal overarm support, the second internal overarm support, the 3rd internal overarm support, upper short hound and under short hound equal
It is connected on described middle main brace bar.
The pile leg structure of a kind of self-elevating drilling platform the most as claimed in claim 3, it is characterised in that
The a length of 1200mm of described middle main brace bar.
The pile leg structure of a kind of self-elevating drilling platform the most as claimed in claim 1, it is characterised in that
Between described main brace bar and secondary hound, angle is 120-140 °.
The spud leg pitch of a kind of self-elevating drilling platform the most as claimed in claim 1, it is characterised in that
The distance at the midpoint of the upper node of described main brace bar and lower node and this main brace bar is 325mm.
The spud leg pitch of a kind of self-elevating drilling platform the most as claimed in claim 1, it is characterised in that
The cylindrical structure of described leg chord, this leg chord includes two semi-circular plates and a rack-plate, described two
Individual semi-circular plate is symmetrically welded in described rack-plate both sides；The thickness of described rack-plate is 165.1mm, tooth top width
Degree is 550mm for 950mm, tooth root width, and the pressure angle of described rack-plate tooth bar is 28 °, tooth bar modulus
For 100mm, the outer curvature radius of described semi-circular plate is 260mm, incurvature radius is 229.1mm.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09158178A (en) * | 1995-12-04 | 1997-06-17 | Takenaka Komuten Co Ltd | Execution method of structure foundation using cast-in-place concrete pile |
| CN200985503Y (en) * | 2006-12-18 | 2007-12-05 | 中国石油天然气集团公司 | Hui shaped shock resistance large area conduit pipe support sea oil production platform |
| CN201050057Y (en) * | 2007-04-13 | 2008-04-23 | 中国海洋石油总公司 | Marine drilling platform reinforced pile leg |
| CN102966127A (en) * | 2012-11-30 | 2013-03-13 | 大连船舶重工集团有限公司 | Method for determining towing load of triangular truss-type pile leg of self-elevating drilling platform |
| CN204326041U (en) * | 2013-07-26 | 2015-05-13 | 江苏科技大学 | A kind of assembled truss framed leg device |
-
2015
- 2015-06-15 CN CN201510332722.1A patent/CN105040718B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09158178A (en) * | 1995-12-04 | 1997-06-17 | Takenaka Komuten Co Ltd | Execution method of structure foundation using cast-in-place concrete pile |
| CN200985503Y (en) * | 2006-12-18 | 2007-12-05 | 中国石油天然气集团公司 | Hui shaped shock resistance large area conduit pipe support sea oil production platform |
| CN201050057Y (en) * | 2007-04-13 | 2008-04-23 | 中国海洋石油总公司 | Marine drilling platform reinforced pile leg |
| CN102966127A (en) * | 2012-11-30 | 2013-03-13 | 大连船舶重工集团有限公司 | Method for determining towing load of triangular truss-type pile leg of self-elevating drilling platform |
| CN204326041U (en) * | 2013-07-26 | 2015-05-13 | 江苏科技大学 | A kind of assembled truss framed leg device |
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| CN105040718A (en) | 2015-11-11 |
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