CN203921137U - Buoyancy aid work pile - Google Patents
Buoyancy aid work pile Download PDFInfo
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- CN203921137U CN203921137U CN201420301175.1U CN201420301175U CN203921137U CN 203921137 U CN203921137 U CN 203921137U CN 201420301175 U CN201420301175 U CN 201420301175U CN 203921137 U CN203921137 U CN 203921137U
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- joint pin
- aid work
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Abstract
A buoyancy aid work pile, comprising: joint pin; And buoyancy compartment, have can with disconnected the first cavity of seawater, described buoyancy compartment is fixedly connected with one end of described joint pin; Ballast tank, is connected with the other end of described joint pin, and when described buoyancy aid work pile is worked in seawater, described ballast tank is communicated with seawater; Truss, is fixedly connected between described buoyancy compartment and described ballast tank, and the length of described truss is not more than 50 meters, and when described buoyancy aid work pile is worked in seawater, ocean current energy passes in described truss; The displacement of described buoyancy compartment is not less than the total mass of described buoyancy aid work pile, and when described buoyancy aid work pile is worked in seawater, the leaning angle producing under extraneous natural force effect is not more than 1 degree.Buoyancy aid work pile of the present utility model does not need mooring just can realize stable position in ocean, and is difficult for run-off the straight and drift.
Description
Technical field
The utility model relates to ocean structure engineering field, is specifically related to a kind of buoyancy aid work pile.
Background technology
Ocean operation need to complete by ocean structure conventionally, ocean structure comprises even artificial island etc. of ocean lighthouse, drilling platform, boats and ships harbour, harbour of refuge, how to make the stably mooring in ocean of these ocean structures become the maximum puzzlement of ocean operation.
In the more shallow marine site of the depth of water, conventionally the mode that employing is directly imbedded sea bed by buoyancy aid work pile realizes the location to ocean structure, in the darker marine site of the depth of water, especially, in ocean, the locate mode that buoyancy aid work pile is directly imbedded sea bed realizes from cost or technical being all difficult to.In prior art, the ocean structure in ocean mainly adopts catenary mooring system and tension type mooring system to position.
Yet all there is the shortcoming that is difficult to overcome in catenary mooring system and tension type mooring system, is mainly reflected in following several respects:
First, mooring system need to be connected with the anchor point on sea bed could finally realize mooring, the interconnection technique of mooring system and anchor point has the locking bolt of casting anchor technology and GPS booster power boosting technology conventionally, these two kinds of technology in ocean, implement to technology require high;
The second, the mooring radius that above-mentioned two kinds of mooring systems take is all larger, easily interferes with near the mooring system of other ocean structures;
The 3rd, mooring system realizes mooring need to arrange anchor point on sea bed, easily causes the destruction to sea bed; In addition, in the process of mooring system migration, stretched wire or tighten rope and rub near one end and the sea bed of sea bed, also can damage sea bed.
Utility model content
The problem that the utility model solves is to provide a kind of buoyancy aid work pile of realizing positioning function in seawater more stablely.
For addressing the above problem, the utility model provides a kind of buoyancy aid work pile, comprising:
Joint pin; And
Buoyancy compartment, has and disconnected the first cavity of seawater, and described buoyancy compartment is fixedly connected with one end of described joint pin;
Ballast tank, is connected with the other end of described joint pin, and when described buoyancy aid work pile is worked in seawater, described ballast tank is communicated with seawater;
Truss, is fixedly connected between described buoyancy compartment and described joint pin, or is fixedly connected between described ballast tank and described joint pin, or described joint pin is separated into two sections and be fixedly connected between two sections of joint pins vertically;
When described buoyancy aid work pile is worked in seawater, described truss is positioned at described buoyancy aid work pile along position corresponding with ocean current on prolonging direction, and the length of described truss is not less than the degree of depth of ocean current, and ocean current energy passes in described truss;
The displacement of described buoyancy compartment is not less than the total mass of described buoyancy aid work pile, and when described buoyancy aid work pile is worked in seawater, the leaning angle producing under extraneous natural force effect is not more than 1 degree.
Optionally, when described buoyancy aid work pile is worked in seawater, the centroidal distance sea level of described buoyancy aid work pile is greater than 10 meters and stagger with truss; When described buoyancy aid work pile is worked in seawater, described center of gravity is lower than centre of buoyancy, and the distance between centre of buoyancy and center of gravity is greater than 8 meters; The total mass of described buoyancy aid work pile is not less than 50 tons.
Optionally, the Length Ratio truss of described buoyancy aid work pile is large more than 50 meters.
Optionally, in the first cavity of described buoyancy compartment, be filled with the material that density is less than water and does not absorb water.
Optionally, also comprise:
Passage, described passage is communicated with described ballast tank and when described buoyancy aid work pile is worked in seawater, described passage is communicated with ambient atmosphere, is not communicated with described buoyancy compartment gas, and described passage can allow in described ballast tank, to load ballast by it.
Optionally, described ballast tank also comprises:
Through hole, is positioned at the sidewall of described ballast tank, and the cavity that described through hole limits ballast tank can be communicated with extraneous water.
Optionally, described truss is comprised of many first purlin posts that extend vertically, and one end of many described the first purlin posts is connected with described joint pin, and the other end is connected with described buoyancy compartment, between many described the first purlin posts, have space, every in many described the first purlin posts is thinner than described joint pin.
Optionally, between adjacent the first purlin post, by the second purlin post, connect, every in many described the second purlin posts is thinner than described joint pin.
Optionally, also comprise deposit cabin, described deposit cabin defines the second cavity, and described deposit cabin is fixedly connected between described buoyancy compartment and described joint pin;
Second cavity in described deposit cabin can be communicated with or not be communicated with seawater.
Optionally, in the axial external surface of described joint pin, be also arranged at intervals with a plurality of the first resistance pieces along the circumferential direction of described joint pin, resistance for increasing seawater to described joint pin, each axial plane along described joint pin in described a plurality of the first resistance pieces stretches out and is fixedly connected with described joint pin.
Optionally, described a plurality of the first resistance piece is symmetrical with respect to the axial line of described joint pin.
Optionally, described the first resistance piece is tabular, and the plate face of described the first resistance piece is perpendicular to the axial external surface of described joint pin.
Optionally, in the axial external surface of described joint pin, between adjacent two the first resistance pieces, be fixedly installed a plurality of the second resistance pieces, the resistance for increasing seawater to described joint pin;
Described a plurality of the second resistance piece arranges along the prolonging direction interval of described joint pin;
Each in described a plurality of the second resistance piece and the axial external surface of described joint pin are the nonparallel angle of cut, and each in described a plurality of the second resistance pieces and described the first resistance piece are the nonparallel angle of cut.
Optionally, described the second resistance piece is tabular, and the plate face of described the second resistance piece is perpendicular to the axial external surface of described joint pin.
Optionally, described the first resistance piece is tabular, and the plate face of described the second resistance piece is perpendicular to the plate face of described the first resistance piece.
Compared with prior art, the technical solution of the utility model has the following advantages:
Balance between the downward gravity in vertical sea level that the buoyancy that first aspect is utilized buoyancy compartment to produce to make progress perpendicular to sea level and buoyancy aid work pile have self, while making buoyancy aid work pile be positioned in ocean, can realize balance in the direction perpendicular to sea level, thereby can be suspended in ocean; Second aspect utilizes ballast tank to fill after ballast, and center of gravity moves to bottom, strengthens righting moment, for buoyancy aid work pile stable provides failure-free guarantee more; The truss that third aspect setting can be passed for ocean current, makes pile body not affected by ocean current.
Accompanying drawing explanation
Fig. 1 is the structural representation of buoyancy aid work pile in embodiment of the utility model, and wherein ballast tank is unloaded;
Fig. 2 is the perspective view of truss in embodiment buoyancy aid work pile of the utility model;
Fig. 3 is along the generalized section of A-A ' direction in Fig. 1;
Fig. 4 is the structural representation of buoyancy aid work pile in another embodiment of the utility model.
The specific embodiment
For above-mentioned purpose of the present utility model, feature and advantage can more be become apparent, below in conjunction with accompanying drawing, specific embodiment of the utility model is described in detail.
An embodiment of the present utility model provides a kind of buoyancy aid work pile, with reference to Fig. 1, and the buoyancy compartment 120 and the ballast tank 130 that comprise joint pin 110 and be connected to the two ends of joint pin 110.Buoyancy compartment 120 has and disconnected the first cavity 121 of seawater; Ballast tank 130 defines a cavity 131, and when buoyancy aid work pile is worked in seawater, the cavity 131 of ballast tank 130 is communicated with seawater; Also comprise truss 160, be fixedly connected between buoyancy compartment 120 and joint pin 110, or be fixedly connected between ballast tank 130 and joint pin 110, or joint pin 110 is separated into two sections and be fixedly connected between two sections of joint pins 110 vertically, truss 160 can allow ocean current to pass.Here " buoyancy aid ", refers to and can suspend in water to sink, but the object that also can not drift about; " buoyancy aid " is different from " floating body ", and " floating body " refers to and float on the water surface, and can be with the object of External Force Acting drift.
Buoyancy compartment 120 is not communicated with seawater, and the first cavity 121 that refers to buoyancy compartment is not communicated with seawater, and it can seal, and also can be communicated with ambient atmosphere.
With reference to Fig. 1, buoyancy aid work pile 100 has top a and bottom b, and top a is positioned at buoyancy compartment 120 away from one end of joint pin 110, and bottom b is positioned at buoyancy aid work pile with respect to the other end of top a; The displacement of buoyancy compartment 120 (be buoyancy compartment while being immersed in seawater completely, the quality of the water arranging) is not less than the total mass of buoyancy aid work pile, and the total mass of buoyancy aid work pile is not less than 50 tons.The displacement of buoyancy compartment 120 is the quality that buoyancy compartment 120 immerses the water arranging in seawater completely, the quality here and displacement all represent (1 ton=1000 kilograms) with tonnage, therefore, when buoyancy aid work pile is arranged in seawater, suffered buoyancy can be offset gravity, so buoyancy aid work pile can be suspended in seawater.When described buoyancy aid work pile is worked in seawater, the leaning angle producing under extraneous natural force effect is not more than 1 degree, requiring the strict application scenario of stability requirement, can also be by changing pile body parameter, the leaning angle that described buoyancy aid work pile is produced under extraneous natural force effect is not more than 0.1 degree.
The displacement of buoyancy compartment 120 is not less than the total mass of buoyancy aid work pile, and quality and displacement here all represent with tonnage.Therefore, when buoyancy aid work pile is arranged in seawater, suffered buoyancy can be offset gravity, so buoyancy aid work pile can be suspended in seawater.In certain embodiments, the total displacement of buoyancy compartment 120 is greater than 200t (1t=1000Kg).In certain embodiments, do not having in ballasted situation, the total mass that the quality of buoyancy compartment 120 accounts for buoyancy aid work pile is no more than 1/3.The shape of buoyancy compartment 120 can be cube shaped, cuboid.When buoyancy aid work pile is worked in seawater, there is centre of buoyancy M and center of gravity G, center of gravity G is between centre of buoyancy M and bottom b.The centre of buoyancy M of buoyancy compartment 120 will be as far as possible away from the center of gravity of pile body, and its displacement wants large, comprehensive these two conditions, it is foursquare rectangular structure that the structure of buoyancy compartment 120 is preferably cross section, and the height of cuboid is greater than the width in cross section, the height of buoyancy compartment 120 should be suitably larger.
Further, the material that can fill full quality light (density is less than water) in the first cavity 121 of buoyancy compartment 120 and not absorb water, can avoid like this buoyancy compartment 120 being corroded or during outside destroy, avoid seawater or other materials to enter the first cavity 121, guarantee the function of buoyancy compartment 120.Quality gently and its quality of the material not absorbing water negligible with respect to buoyancy aid work pile, as an embodiment, quality gently and the material not absorbing water, such as being polyvinylchloride, foam etc. organic material.
With reference to Fig. 3, consider the impact of ocean current, between buoyancy compartment and joint pin, be provided with truss 160, when buoyancy aid work pile is worked in seawater, ocean current energy passes in truss 160.Truss 160 is positioned at buoyancy aid work pile along position corresponding with ocean current on prolonging direction, the length of truss 160 is not less than the degree of depth of ocean current or basic suitable with the ocean current degree of depth, the length that is to say truss 160 generally determines and is preferably not less than the ocean current degree of depth of specifying marine site by the ocean current degree of depth of specifying marine site, yet consider the actual ocean current degree of depth and cost control, the length of truss 160 is no more than 50 meters, and the length of truss 160 refers to its height when pile body is worked in seawater.
When sea is subject to wind-force, do the used time, surface seawater sport forms stormy waves, even in the situation of wind-force maximum, the surface seawater degree of depth that it can affect is usually no more than 10 meters, so the center of gravity G of buoyancy aid work pile will be lower than the stormy waves degree of depth.Center of gravity G should be greater than 10 meters apart from the distance of sea level S, and the distance between center of gravity G and centre of buoyancy M should be greater than 8 meters.In addition,, for fear of ocean current impact, center of gravity G also should avoid the position of truss 160.In certain embodiments, suppose that truss 160 is 50 meters, and truss 160 is between buoyancy compartment 120 and joint pin 110, the center of gravity of described buoyancy aid work pile will reach more than 60 meters apart from sea level S, pile body total length reaches more than 100 meters, the distance of the centre of buoyancy M of buoyancy aid work pile in buoyancy compartment 120 and between centre of buoyancy M and center of gravity G is not less than 58 meters, center of gravity G is larger more than 10 meters than truss 160 length with the distance of sea level S so, and the distance between centre of buoyancy M and center of gravity G is larger more than 8 meters than truss 160 length.
With reference to Fig. 1 and in conjunction with Fig. 2, truss 160 can be comprised of many vertical the first purlin posts 161, between many first purlin posts 161, has space, and one end of many first purlin posts 161 is connected with described buoyancy compartment 120, and the other end is connected with described joint pin 110.Between adjacent the first purlin post 161, by one or more second purlin posts 162, connect.The lateral dimension of every in many first purlin posts 161, the second purlin post 162 is less than joint pin far away, thin more than joint pin 110, when buoyancy aid work pile is worked in seawater, ocean current energy passes the space between many first purlin posts 161, the second purlin post 162.The lateral dimension of whole truss 160, perpendicular to the size of the prolonging direction of joint pin 110, can be identical with the lateral dimension of joint pin 110.Because every the first purlin post 161, the second purlin post 162 of truss 160 are thinner, in order to guarantee can not break under ocean current or stormy waves impact, the intensity of every the first purlin post 161, the second purlin post 162 is wanted enough height.
Further, on the sidewall of ballast tank 130, can also be provided with through hole (not mark), the quantity of through hole is too much unsuitable, general one to two, the size of through hole is also unsuitable excessive, as long as can make seawater enter smoothly ballast tank 130 and the cavity 131 of ballast tank 130 restrictions is communicated with extraneous seawater.In certain embodiments, through hole can also adopt sealing member (not shown) to seal, to isolate cavity 131 and the external world.In transportation, ballast tank 130 can seal like this, so that transportation.Ballast tank 130 can be unloaded, also can to buoyancy aid work pile, increase weight by adding loads, to the center of gravity G of buoyancy aid work pile is further dragged down, to increase centre of buoyancy apart from (being the distance between center of gravity G and centre of buoyancy M), therefore the length of joint pin 110 does not need to arrange very longly, and buoyancy aid work pile also can stable position in seawater.The shape of ballast tank 130 can adopt any shape, such as square, cylindrical etc.The quality of ballast tank 130 will be tried one's best greatly, and volume is little.In certain embodiments, when ballast tank 130 is unloaded, ballast tank 130 is greater than 2/3 of whole pile quality with the quality sum of joint pin 110; Ballast tank 130 at full loads, the proportion that the quality sum of ballast tank 130 and ballast accounts for the quality of whole pile body surpasses 1/2.
When unloaded, the proportion that the quality of joint pin 110 accounts for buoyancy aid work pile total mass is greater than 1/3.In certain embodiments, joint pin 110 is even along the quality of its prolonging direction, even intensity.Buoyancy aid work pile, when seawater is worked, is vertical state, and, when without stormy waves or without ocean current, buoyancy aid work pile is substantially vertical with sea level S.Buoyancy aid work pile 100 must have enough quality to stablize.Because the bottom of pile body in embodiment of the present utility model has ballast tank 130, by fill ballast in ballast tank 130, therefore joint pin 110 needn't have very large length and also may meet the requirement of quality, in certain embodiments, if buoyancy aid work pile 100 is steel structure, buoyancy compartment 120 and joint pin 110 are corrosion-resistant steel, in order to realize stable position, the width that for example can be arranged on joint pin 110 is in 3 meters of situations, and the length of joint pin 110 is greater than 35 meters.
In certain embodiments, for to the interior filling ballast of ballast tank 130, passage 140 can also be set.In certain embodiments, passage 140 is positioned at joint pin 110 and extends along joint pin 110, run through joint pin 110 and buoyancy compartment 120, passage is used for loading ballast, when buoyancy aid work pile is worked in seawater, one end across the sea of passage is communicated with 140 ambient atmosphere, passage 110 other ends are communicated with seawater by ballast tank 130, and passage 140 is not communicated with buoyancy compartment 120 gases.The material that ballast can be stone, iron block equidensity is larger.
With reference to figure 4, in certain embodiments, buoyancy aid work pile can also comprise deposit cabin 150, is fixedly connected between buoyancy compartment 120 and truss 160.Deposit cabin 150 defines second cavity 151, and when buoyancy aid work pile is worked in seawater, deposit cabin 150 can be communicated with or not be communicated with seawater.For example, in the time of the deposit interior Loaded goods in cabin 150 (seawater or other objects), deposit cabin 150 can be used as serves as the quality that joint pin increases pile body.When load increases, need to strengthen the charge capacity that buoyancy aid work pile can bear, Loaded goods in deposit cabin 150 can be discharged to the part use of serving as buoyancy compartment, can increase the buoyancy of buoyancy aid work pile like this, thereby increase the load-carrying capacity of buoyancy aid work pile.By arranging, lay in cabin like this, thereby can control flexibly the floating of pile body and the load-carrying capacity that pile body is controlled in sinking according to extraneous circumstance.Loaded goods in deposit cabin 150 can be seawater.
Further, with reference to Fig. 1 and in conjunction with (Fig. 3 is along the generalized section of A-A ' direction in Fig. 1) shown in Fig. 3, on joint pin 110, can also be provided with a plurality of the first resistance pieces 111.A plurality of the first resistance pieces 111 are the resistance to joint pin 110 for increasing seawater, and exactly, when a plurality of the first resistance pieces 111 tilt for increasing pile body, seawater is to its resistance.Circumferentially spaced apart in the axial external surface of joint pin 110, along joint pin of a plurality of the first resistance pieces 111.Each axial plane along joint pin 110 in a plurality of the first resistance pieces 111 stretches out and is fixedly connected with joint pin 110.
Joint pin 110 has axial line, and joint pin 110 has and is parallel to the outside face of axial line and perpendicular to the outside face of axial line, axial external surface refers to the outside face of the axial line that is parallel to joint pin 110 herein.The sagittal plane of joint pin 110 refers to the sagittal plane perpendicular to the axial line of joint pin 110, and the axial plane of joint pin 110 refers to by the plane of the axial line of joint pin 110.In certain embodiments, each in the first resistance piece 111 can be for tabular, and the plate face of the first resistance piece 111 is perpendicular to the axial external surface of joint pin 110.In certain embodiments, a plurality of the first resistance pieces 111 can be symmetric with respect to the axial line of joint pin 110.
In the embodiment shown in fig. 1, each in the first resistance piece 111 extends to the other end from one end of joint pin 110, can be identical with the length of joint pin 110.Wherein, each point of the first resistance piece 111 can be positioned on same axial plane, also can be positioned on different axial planes, and the first resistance piece 111 can be plane, can be also curved surface shape, wherein with plane for well.
In certain embodiments, in the axial external surface of joint pin 110, between adjacent two first resistance pieces 111, be provided with a plurality of the second resistance pieces 112, the resistance for increasing seawater to joint pin, specifically, is resistance when increasing seawater pile body is moved up and down.A plurality of the second resistance pieces 112 arrange along the prolonging direction interval of joint pin 110, each in a plurality of the second resistance pieces 112 is fixedly connected with adjacent two first resistance pieces 111 with joint pin 110, each in a plurality of the second resistance pieces 112 and the axial external surface of joint pin 110 are the nonparallel angle of cut, and each in a plurality of the second resistance pieces 112 and the first resistance piece 111 are the nonparallel angle of cut (being angle).It is tabular that the second resistance piece can be, and the plate face of the second resistance piece 112 can be perpendicular to the axial external surface of joint pin.If the first resistance piece 111 and the second resistance piece 112 are all tabular, the plate face of the second resistance piece 112 is perpendicular to the plate face of the first resistance piece 111.Wherein, each point of the second resistance piece 112 can be positioned on same sagittal plane, also can be positioned on different sagittal planes, and the second resistance piece 112 can be plane, can be also curved surface shape, wherein with plane for well.
Arranging of the first resistance piece 111 and the second resistance piece 112 can need to be carried out according to the intensity of pile body.In certain embodiments, the first resistance piece 111 can arrange 4, along being circumferentially uniformly distributed of joint pin 110, and between every two the first adjacent resistance pieces 111, second resistance piece 112 is set along joint pin 110 prolonging directions at interval of 4.75 meters.
When as front buoyancy aid work pile when thering is deposit cabin 150, the first resistance piece 111 and the second resistance piece 112 also can be set, be not described in detail in this.
As an embodiment, location, ocean 100 can integral body be steel structure, that is: joint pin 110, buoyancy compartment 120 and ballast tank 130, truss 160 are steel structure.
The principle of work of the buoyancy aid work pile of the utility model embodiment is as follows, when buoyancy aid work pile is not subject to the lateral external forces (application force that is parallel to the direction of sea level S, the power for example being applied by wind or wave, the motion of ocean current is very slow, its power that buoyancy aid work pile is applied is with respect to negligible wind-force) do the used time, it is perpendicular to sea level S, in initial condition; When being subject to lateral external forces, do the used time, lateral external forces will produce tilting moment, and according to Ship Statics, the gravity of buoyancy aid work pile self will produce righting moment; In addition, pile body is also subject to the effect of hydraulic pressure (pressure of seawater) in part under water, and hydraulic pressure produces resistance torque.Righting moment and resistance torque all can be resisted tilting moment, impel buoyancy aid work pile to return back to virgin state.
Only consider that wind-force does the used time, suppose buoyancy aid work pile 0.1 ° (angle) that tilt, it is subject to the application force of wind-force, gravity and hydraulic pressure (only considering that centre of buoyancy M is to the hydraulic pressure of bottom b part here) three aspects:, and in conjunction with Fig. 1, concrete force analysis is as follows.
Wind-force effect is exposed to part more than sea level S to buoyancy aid work pile, and the center of definition wind-force effect is wind-force center P; The center of pressure of seawater is hydraulic pressure center.
Definition wind-force center P is H apart from the distance of centre of buoyancy M
1, center of gravity G is H apart from the distance of centre of buoyancy M
2, the distance of hydraulic pressure center and centre of buoyancy M is H
3, definition wind-force is F
p, buoyancy is F
m, gravity is F
g, the pressure of seawater is F
w.
Wind-force F
pbuoyancy aid work pile is applied to a tilting moment T
p, T
pbe about:
T
p＝F
P·BC·H
1
Wherein B is area exposed to the wind, and C is coefficient of streamline shape (C=0.5).
Gravity F
gbuoyancy aid work pile is applied to a righting moment T
g, T
gbe about:
T
G＝F
G·H
2·Sin0.1°
Hydraulic pressure F
wbuoyancy aid work pile is applied to a resistance torque T
w, as one, simplify example, the resistance torque T of water
wcan adopt following formula to calculate:
T
W＝F
W·H
3＝ρ·V·T·H
3
Wherein ρ is sea water density, and V is the tilt volume of the water that arranges 0.1 ° time of buoyancy aid work pile, H
3for the distance of hydraulic pressure center to centre of buoyancy M, T is that (when 50 meters of dark buoyancy aid work piles are all immersed in seawater, suffered average hydraulic pressure is equivalent to 2.5 barometric pressures to hydraulic pressure coefficient, and hydraulic pressure coefficient is 2.5.Here get T=2).
While only considering gravity, when buoyancy aid work pile can not keep, need meet righting moment T
gbe not less than tilting moment T
p, and when critical conditions, righting moment T
g=tilting moment T
p, that is:
F
gh
2sin0.1 °=F
pbCH
1(formula one)
While only considering hydraulic pressure, when buoyancy aid work pile can not keep, need meet resistance torque T
wbe not less than tilting moment T
p, and when critical conditions, resistance torque T
w=tilting moment T
p, that is:
ρ VTH
3=F
pbCH
1(formula two)
Through calculating, in pile body, do not have the situation of truss to compare with there being the situation of truss, the weight of pile body is smaller, and draft is lower, and the area exposing is across the sea larger, and the distance between pile body center of gravity and centre of buoyancy is also smaller.If that is to say, according to formula one, do not have the situation of truss to compare with there being the situation of truss in pile body, tilting moment is larger, and righting moment can be smaller, that is to say, when having truss, the stability of pile body is better when there is no truss.
Lower surface analysis buoyancy aid work pile does not have in the situation of truss, its stressing conditions:
The parameters of supposing buoyancy aid work pile is as follows: top a to the distance of bottom b be 51m; The total mass of buoyancy aid work pile is about 60t; The cross-sectional plane of joint pin, ballast tank and buoyancy compartment is square, and joint pin is set to the cylinder of transversal face width 3m, high 38m, and buoyancy compartment 120 is set to the cylinder of transversal face width 5m, high 11m, and ballast tank 130 is set to transversal face width 4m, the cylinder of high 2m; Buoyancy compartment, joint pin, ballast tank are all made with the steel of same size.
When ballast tank 130 is unloaded, with reference to Fig. 2, buoyancy aid work pile draft is about 43m, and buoyancy compartment 120 is exposed to sea level S and is highly about above 8m, calculates:
Area exposed to the wind B=40m
2;
Center of gravity G is about 32.5m apart from the height of bottom b; Centre of buoyancy M is 41.5m apart from the height of bottom b, and the height of hydraulic pressure centre distance bottom b is about 14.3m.
H
1=5.5m, H
2=8.5m, H
3=27.2m;
By parameters substitution formula one, obtain F
p≈ 0.01t/m
2.
Note: in the present embodiment, to take ton (t) be unit to suffered each power of buoyancy aid work pile, lower with.
By parameters substitution formula two, obtain F
p≈ 2.4t/m
2.
So, under ballast tank 130 no-load conditions, consider gravity and hydraulic pressure, the wind-force that buoyancy aid work pile inclination 0.1 degree needs is at least about 2.41t/m
2.Angle of inclination is larger, and the wind-force needing is larger.
Generally, the wind-force maximum on sea only can reach 1t/m
2, because every sq m while arriving 1t people will be blown in the air and go, the blast that is greater than every sq m 1t is seldom.Visible buoyancy aid work pile, under light condition, even if add the application force of wave, also can be realized stable position.
When pile body is used as buoy, due to its for stability requirement be not strict (1 degree that for example tilts also has no relations, only otherwise occur displacement just can), above-mentioned pile body can meet the demands completely; When stricter to the stability requirement of pile body time, such as using it when creeping into the location of platform, artificial island etc., can be by increasing ballast or increase pile body length to increase the centre of buoyancy distance of pile body in ballast tank 130, or by setting up first, second flaps to increase the modes such as seawater resistance, strengthen the stability of pile body.
As front, thus ballast tank 130 can also by add loads carry out to buoyancy aid work pile further weightening finish make under its mode of operation more stable.When ballast tank 130 at full loads, the total mass of buoyancy aid work pile can reach about 200t, and the now draft increase of buoyancy aid work pile is 50m most, and the height that buoyancy compartment 120 is exposed to more than sea level S is reduced to 1m, area exposed to the wind B '=5m
2, centre of buoyancy M is 45m apart from the height of bottom b, center of gravity G is about 10.5m apart from the height of bottom b; H
1'=5.5m, H
2'=34.53m, H
3'=30m.
Can see, at full load, rises when centre of buoyancy M is more unloaded to some extent, and the distance of whole pile body Wind pressure center and centre of buoyancy is constant, and the distance of center of gravity and centre of buoyancy increases, and the distance of hydraulic pressure center and centre of buoyancy also increases.So, when buoyancy aid work pile inclination 0.1 is spent, the wind-force needing is larger, that is to say that buoyancy aid work pile is more stable at full load.
As above, when buoyancy aid work pile does not have truss, extraordinary stability can be kept, so when it has truss, still extraordinary stability can be kept.
To sum up, general wind-force and the effect of wave, cannot make the run-off the straight of buoyancy aid work pile, and the buoyancy aid work pile of embodiment of the present utility model can enough overcome wind-force and the wave that produced by the wind-force lateral external forces to its generation, thereby realizes stable position.
In other embodiments, the total mass of buoyancy aid work pile can be also other values, but in order to guarantee to stablize, total mass when buoyancy aid work pile is unloaded should be not less than 50 tons, in addition, the bottom b of buoyancy aid work pile can be greater than 50 meters to the distance of top a, and the upper limit of this distance is as the criterion with the sea water advanced of different waters, as long as meet this distance, is less than the sea water advanced of appointment marine site.
To sum up, the buoyancy that ocean buoyancy aid work pile utilization in the present embodiment is subject in ocean and the inside-connecting relation of gravity, realize the location of pile body in ocean and fixing effect and object, buoyancy aid work pile need not locking bolt can be realized and fixingly do not drift about or only have fine motion; With respect to the mooring system of prior art, easy to use, integral structure size is less, avoids the interference between different buoyancy aid work piles, and owing to not needing and sea bed is anchored, to sea bed without injury.
It is fixing etc. that the buoyancy aid work pile of the present embodiment can be applicable to oceanographic buoy, beacon location, but be not limited only to above-mentioned application.It should be noted that, when buoyancy aid work pile is around while having loaded article, for example, as boats and ships anchor point and mooring while having boats and ships, now loaded article is as a part of buoyancy aid work pile, loaded article will increase the area exposed to the wind of whole buoyancy aid work pile, the ability that causes buoyancy aid work pile to bear blast declines to some extent, for example, suppose that the former area exposed to the wind of buoyancy aid work pile is 150m
2, it is 10t that every sq m can bear blast, the area exposed to the wind of loaded article is 300m
2, during as loaded article area exposed to the wind and buoyancy aid work pile area exposed to the wind overlaid, area exposed to the wind is still 300m
2, as wind surface center and center of buoyance constant, so at this moment every sq m holds blast energy and reduces, and than non-loaded situation, reduces to some extent.Therefore when reality is used, the load capacity that needs reasonable limits buoyancy aid work pile to bear, guarantees its stability.
Although the utility model discloses as above, the utility model is not defined in this.Any those skilled in the art, within not departing from spirit and scope of the present utility model, all can make various changes or modifications, and therefore protection domain of the present utility model should be as the criterion with claim limited range.
Claims (15)
1. a buoyancy aid work pile, is characterized in that, comprising:
Joint pin; And
Buoyancy compartment, has and disconnected the first cavity of seawater, and described buoyancy compartment is fixedly connected with one end of described joint pin;
Ballast tank, is connected with the other end of described joint pin, and when described buoyancy aid work pile is worked in seawater, described ballast tank is communicated with seawater;
Truss, is fixedly connected between described buoyancy compartment and described joint pin, or is fixedly connected between described ballast tank and described joint pin, or described joint pin is separated into two sections and be fixedly connected between two sections of joint pins vertically;
When described buoyancy aid work pile is worked in seawater, described truss is positioned at described buoyancy aid work pile along position corresponding with ocean current on prolonging direction, and the length of described truss is not less than the degree of depth of ocean current, and ocean current energy passes in described truss;
The displacement of described buoyancy compartment is not less than the total mass of described buoyancy aid work pile, and when described buoyancy aid work pile is worked in seawater, the leaning angle producing under extraneous natural force effect is not more than 1 degree.
2. buoyancy aid work pile as claimed in claim 1, is characterized in that, when described buoyancy aid work pile is worked in seawater, the centroidal distance sea level of described buoyancy aid work pile is greater than 10 meters and stagger with truss; Described center of gravity is lower than centre of buoyancy, and the distance between centre of buoyancy and center of gravity is greater than 8 meters; The total mass of described buoyancy aid work pile is not less than 50 tons.
3. buoyancy aid work pile as claimed in claim 1, is characterized in that, the Length Ratio truss of described buoyancy aid work pile is large more than 50 meters.
4. buoyancy aid work pile as claimed in claim 1, is characterized in that, in the first cavity of described buoyancy compartment, is filled with the material that density is less than water and does not absorb water.
5. buoyancy aid work pile as claimed in claim 1, is characterized in that, also comprises:
Passage, described passage is communicated with described ballast tank and when described buoyancy aid work pile is worked in seawater, described passage is communicated with ambient atmosphere, is not communicated with described buoyancy compartment gas, and described passage can allow in described ballast tank, to load ballast by it.
6. buoyancy aid work pile as claimed in claim 1, is characterized in that, described ballast tank also comprises:
Through hole, is positioned at the sidewall of described ballast tank, and the cavity that described through hole limits ballast tank can be communicated with extraneous water.
7. buoyancy aid work pile as claimed in claim 1, it is characterized in that, described truss is comprised of many first purlin posts that extend vertically, one end of many described the first purlin posts is connected with described joint pin, the other end is connected with described buoyancy compartment, between many described the first purlin posts, have space, every in many described the first purlin posts is thinner than described joint pin.
8. buoyancy aid work pile as claimed in claim 7, is characterized in that, between adjacent the first purlin post, by the second purlin post, connects, and every in many described the second purlin posts is thinner than described joint pin.
9. the buoyancy aid work pile as described in any one in claim 1～8, is characterized in that, also comprises deposit cabin, and described deposit cabin defines the second cavity, and described deposit cabin is fixedly connected between described buoyancy compartment and described joint pin;
Second cavity in described deposit cabin can be communicated with or not be communicated with seawater.
10. the buoyancy aid work pile as described in any one in claim 1～8, it is characterized in that, in the axial external surface of described joint pin, be also arranged at intervals with a plurality of the first resistance pieces along the circumferential direction of described joint pin, resistance for increasing seawater to described joint pin, each axial plane along described joint pin in described a plurality of the first resistance pieces stretches out and is fixedly connected with described joint pin.
11. buoyancy aid work piles as claimed in claim 10, is characterized in that, described a plurality of the first resistance pieces are symmetrical with respect to the axial line of described joint pin.
12. buoyancy aid work piles as claimed in claim 10, is characterized in that, described the first resistance piece is tabular, and the plate face of described the first resistance piece is perpendicular to the axial external surface of described joint pin.
13. buoyancy aid work piles as claimed in claim 10, is characterized in that, in the axial external surface of described joint pin, between adjacent two the first resistance pieces, are fixedly installed a plurality of the second resistance pieces, the resistance for increasing seawater to described joint pin;
Described a plurality of the second resistance piece arranges along the prolonging direction interval of described joint pin;
Each in described a plurality of the second resistance piece and the axial external surface of described joint pin are the nonparallel angle of cut, and each in described a plurality of the second resistance pieces and described the first resistance piece are the nonparallel angle of cut.
14. buoyancy aid work piles as claimed in claim 13, is characterized in that, described the second resistance piece is tabular, and the plate face of described the second resistance piece is perpendicular to the axial external surface of described joint pin.
15. buoyancy aid work piles as claimed in claim 13, is characterized in that, described the first resistance piece is tabular, and the plate face of described the second resistance piece is perpendicular to the plate face of described the first resistance piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420301175.1U CN203921137U (en) | 2014-06-06 | 2014-06-06 | Buoyancy aid work pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420301175.1U CN203921137U (en) | 2014-06-06 | 2014-06-06 | Buoyancy aid work pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203921137U true CN203921137U (en) | 2014-11-05 |
Family
ID=51816997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420301175.1U Withdrawn - After Issue CN203921137U (en) | 2014-06-06 | 2014-06-06 | Buoyancy aid work pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203921137U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105329410A (en) * | 2014-06-06 | 2016-02-17 | 上海海郑海洋建设工程技术有限公司 | Floating body gauge pile |
| CN108978760A (en) * | 2018-09-27 | 2018-12-11 | 景冲 | A kind of dredger |
-
2014
- 2014-06-06 CN CN201420301175.1U patent/CN203921137U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105329410A (en) * | 2014-06-06 | 2016-02-17 | 上海海郑海洋建设工程技术有限公司 | Floating body gauge pile |
| CN105329410B (en) * | 2014-06-06 | 2017-11-21 | 上海海郑海洋建设工程技术有限公司 | Floating body guide pile |
| CN108978760A (en) * | 2018-09-27 | 2018-12-11 | 景冲 | A kind of dredger |
| CN108978760B (en) * | 2018-09-27 | 2021-02-26 | 马鞍山纽盟知识产权管理服务有限公司 | Dredger |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141105 Effective date of abandoning: 20171121 |