CN102645346A - Novel submarine pipe soil interaction model test platform - Google Patents
Novel submarine pipe soil interaction model test platform Download PDFInfo
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- CN102645346A CN102645346A CN201210100723XA CN201210100723A CN102645346A CN 102645346 A CN102645346 A CN 102645346A CN 201210100723X A CN201210100723X A CN 201210100723XA CN 201210100723 A CN201210100723 A CN 201210100723A CN 102645346 A CN102645346 A CN 102645346A
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Abstract
The invention provides a novel submarine pipe soil interaction model test platform which comprises a model pipe, a power device and a model slot provided with a simulated seabed. The novel submarine pipe soil interaction model test platform is also provided with an upright post, a cross beam, a clamping plate, a speed reducer, a steel wire rope, a pulley, a fixed pressing plate, a fastening bolt, a vertical power device, a transverse power device, a connecting mechanism, a pull wire type displacement sensor, a bending moment strain gauge, a pore water pressure sensor, a soil reaction force sensor, a model pipe folding and unfolding device, a hydraulic servo system and a data collection system. The novel submarine pipe soil interaction model test platform has the beneficial effects that the model test study of submarine pipe soil interaction characteristics under the deep sea complex cyclic dynamic load environment can be realized, and the model test efficiency and the result accuracy are improved to play huge promoting and pushing roles in further understanding the submarine pipe soil interaction characteristics.
Description
Technical field
The present invention relates to seabed pipeclay interaction model test platform.
Background technology
It is one of important step in the marine oil and gas engineering that the safety of subsea pipeline is laid.The laying of pipeline receives Effect of Environmental such as complicated wind, wave, stream in the deep-sea, and the interaction of pipeline and sea bed is also complicated more, and pipeline shows the strong nonlinear kinematic behavior.Therefore, the pipeclay interaction is the emphasis and the development in future direction of current domestic and international research under the complicated load environment in deep-sea.The relevant theoretical research and the foundation of numerical model reliable and detailed experimental datas are in a large number verified and are optimized.Advantages such as model test method has cost, and easy operating, external interference factor are few have irreplaceable effect in scientific research.At present; Chinese scholars interacts to the seabed pipeclay and has carried out great deal of experimental; But all not enough system, and ripe test apparatus is also seldom: the motion morphology in the district of can not the real simulation submarine pipeline contacting to earth that has, as Duan Menglan etc. and the district's fatigue experiment system design of contacting to earth of deep water steel catenary riser. mechanics and practice; 2011, (33) 3:15-19 >; What have only is applicable to sand; Not only can not consider the influence of pipeline transverse movement; Can not obtain the rule that influences of factors such as vibration amplitude, frequency and cycle index; See < M.S.Hodder, B.W.Byrne.3D experiments investigating the interaction of a model SCR with the seabed.Applied Ocean Research 2009 for details; 1:1-12 >.It is a lot of to influence the interactional factor of seabed pipeclay, to assess these factors quantitatively to the interactional influence of pipeclay, for the design level that improves China's subsea pipeline very important meaning is arranged through a large amount of model tests.
Summary of the invention
Technical matters to be solved by this invention provides a kind of novel seabed pipeclay interaction model test platform; For the pipeclay interaction experimental study of deep water seabed provides a cover novel model test platform; With Simulation of Complex marine environment more truly; Consider more multifactorial influence, the more important thing is to numerical simulation and theoretical research provides reliable model test technology.
For this reason, the present invention adopts following technical scheme: a kind of novel seabed pipeclay interaction model test platform, and it comprises the model groove that the simulation sea bed is set, and it is characterized in that said test platform also is provided with:
1), is arranged on the column (1) of model groove end;
2), the liftable crossbeam (6) of supporting propulsion system, said crossbeam (6) is connected with lifting drive, said crossbeam passes through its up-down guiding mechanism and is connected with column;
Said propulsion system comprise;
3-1), can vertically be locked at the latch mechanism on the crossbeam along level at the longitudinally-moving platform (29) of translation on the crossbeam and with said longitudinally-moving platform (29); Said longitudinally-moving platform is under the crossbeam; On crossbeam, said crossbeam is provided with the guide of said horizontal longitudinal translation through rolling element bearing;
The horizontal travel(l)ing rest (9) that 3-2), can move along horizontal cross; Said horizontal travel(l)ing rest (9) is under the longitudinally-moving platform (29); Laterally travel(l)ing rest is connected with the longitudinally-moving platform through its guided in translation device, and the translation driving device of said horizontal travel(l)ing rest (9) is installed on the longitudinally-moving platform (29);
3-3), be installed in the oil cylinder (11) on the horizontal travel(l)ing rest, its operative orientation is a vertical direction;
3-4), by the vertical movable platform (37) that said hydraulic oil cylinder driving is gone up and down, said vertical movable platform is connected with horizontal travel(l)ing rest (9) through its up-down guiding mechanism;
3-5), be installed in vertical travel(l)ing rest (10) on the vertical movable platform (37);
3-6), be hinged on the turning block (40) of vertical travel(l)ing rest (10) bottom, its rotation axis to be said laterally, said turning block also is equipped with the latch mechanism that prevents its rotation;
3-7), be installed in model pipeline fixed mechanism on the turning block (40).
On the basis of adopting technique scheme, the present invention also can adopt following further technical scheme:
The lifting drive of said crossbeam comprises: traction rope, traction rope reel, reel operating grip, and connection reducer between said reel operating grip and the traction rope reel, said column is provided with the pulley of said traction rope.
The up-down guiding mechanism of said crossbeam is vertical clamp (5), and the ways on said clamp (5) and the column is slidingly connected.
The up-down guiding mechanism of said vertical movable platform comprises vertical lines guide rail and vertical slide block, and said vertical movable platform is connected with vertical slide block, and said oil cylinder (11) is connected with vertical slide block with vertical movable platform.
The latch mechanism that said turning block set is clamping screw (39).
The latch mechanism of said longitudinally-moving platform (29) is the pressure strip (26) that is on the said guide.
Said model pipeline fixed mechanism comprises model pipeline chuck (41) and the set nut (45) that is threaded with model pipeline chuck (41).
The present invention is equipped with model pipeline (12), and the two ends of said model pipeline (12) are by gland bonnet (42) sealing, and the interior hanging steel rope of model pipeline (12) sets the fixed head (43) of fixing said wire rope in the said model pipeline.
The present invention is equipped with model pipeline (12), and the sensor of said test platform is installed on the model pipeline of said test platform, and said sensor comprises stay-supported displacement transducer, moment of flexure strainometer, pore water pressure sensor and native counter-force sensor.
The present invention is provided with the Hydrauservo System of data acquisition system (DAS) and oil cylinder, and said data acquisition system (DAS) comprises stay-supported displacement transducer, moment of flexure strainometer, pore water pressure sensor and native counter-force sensor.
Owing to adopt technical scheme of the present invention; The present invention possesses following function: the sea bed environment of arranging fast; The force-bearing situation of Simulation of Complex; Regulatable two-way circulation power loading system, the data acquisition system (DAS) that parameters such as the kinematics of pipeclay interaction model and dynamics are measured immediately.The present invention can realize pipeclay interaction model experimental study under the complex loops dynamic load environment of deep-sea; And improve and carry out the efficient of model test and result's accuracy, for further understanding seabed pipeclay interaction property huge promotion and impetus are arranged.
The present invention and domestic and international existing correlation test compared with techniques; Go for silt and clay; Can consider lateral load, and the connection pattern that can consider the model pipeline end is to the interactional influence of pipeclay, and loading system and data acquisition system (DAS) are accurately controlled.
Description of drawings
Fig. 1 is the synoptic diagram of embodiment provided by the present invention.
Fig. 2 is one of propulsion system partial schematic diagram of embodiment provided by the present invention.
Fig. 3 be embodiment provided by the present invention propulsion system portion of office synoptic diagram two.
Fig. 4 is the model groove trough floor part synoptic diagram of embodiment provided by the present invention
Fig. 5 is the speed reduction unit part synoptic diagram of embodiment provided by the present invention.
Fig. 6 is that sensing station of the present invention is arranged synoptic diagram.
Embodiment
With reference to accompanying drawing.The present invention includes the model groove 13 that the simulation sea bed is set; Said simulation sea bed is silt or clay 16; Said simulation sea bed top is water, and the present invention also is equipped with model pipeline 12, said model pipeline 12 adopts the PVC material to process, and said test platform propulsion system comprise:
1), is arranged on the column 1 of model groove 13 ends;
2), the liftable crossbeam 6 of supporting propulsion system, said crossbeam 6 is connected with lifting drive, said crossbeam passes through its up-down guiding mechanism and is connected with column 1;
The up-down guiding mechanism of said crossbeam 6 is vertical clamp 5, and the ways on said clamp 5 and the column 1 is slidingly connected, and clamp 5 can make crossbeam 6 along column 1 upper and lower displacement., the lifting drive of said crossbeam 6 comprises: traction rope 3, traction rope reel 49, reel operating grip 51; Through shaking said handle 51, can make crossbeam 6 along upper and lower displacement, to regulate the vertical position of crossbeam 6, connection reducer 4 between said reel operating grip 51 and the traction rope reel 49, the speed that said speed reduction unit 4 may command crossbeams 6 slide up and down.Said column 1 is provided with the pulley 23,24 of said traction rope.
Said propulsion system comprise;
3-1), can vertically be locked at the latch mechanism on the crossbeam 6 along level at the longitudinally-moving platform 29 of translation on the crossbeam and with said longitudinally-moving platform 29; Said longitudinally-moving platform 29 is under the crossbeam 6; Through rolling element bearing on crossbeam 6; Said crossbeam 6 is provided with the guide 7 of said horizontal longitudinal translation, and promptly longitudinally-moving platform 29 can be done lengthwise movement along the guide 7 that is installed in crossbeam 6 bottoms, and said is the left and right directions among Fig. 1,2 vertically.
The latch mechanism of said longitudinally-moving platform 29 is the pressure strip 26 on the guide 7, and it can be as required be fixed on longitudinally guiding slide plate 7 on the crossbeam 6 and stiff.
The horizontal travel(l)ing rest 9 that 3-2), can move along horizontal cross; Said horizontal travel(l)ing rest 9 is under the longitudinally-moving platform 29; Laterally travel(l)ing rest 9 is connected with the longitudinally-moving platform through its guided in translation device, and the translation driving device of said horizontal travel(l)ing rest 9 is installed on the longitudinally-moving platform 29; Said laterally with said vertically and vertical direction perpendicular.
The guided in translation device of said horizontal travel(l)ing rest 9 comprises horizontal line slideway 30,31; Transverse slider 32,33; Transverse slider 32,33 transversely line slideway 30,31 is done horizontal slip; Line slideway 30,31 is fixed on the lower surface of longitudinally-moving platform 29, and transverse slider 32,33 is connected with the top of horizontal travel(l)ing rest 9.
Laterally the translation driving device of travel(l)ing rest 9 is an oil cylinder 8.
3-3), be installed in the oil cylinder 11 on the horizontal travel(l)ing rest 9, its operative orientation is a vertical direction;
3-4), by the vertical movable platform 37 that said hydraulic oil cylinder driving is gone up and down, said vertical movable platform 37 is connected with horizontal travel(l)ing rest 9 through its up-down guiding mechanism;
The up-down guiding mechanism of said vertical movable platform 37 comprises vertical lines guide rail 36 and vertical slide block 34,35; Line slideway 36 is arranged on the horizontal travel(l)ing rest 9; Said vertical movable platform 37 is connected with vertical slide block 34,35; Said oil cylinder 11 is connected with vertical slide block 34,35 with vertical movable platform 37, drives them.
3-5), be installed in vertical travel(l)ing rest 10 on the vertical movable platform 37;
3-6), be hinged on the turning block 40 of vertical travel(l)ing rest 10 bottoms, its rotation axis 38 be provided with direction be said laterally, said turning block also is equipped with the latch mechanism that prevents its rotation; The latch mechanism that said turning block 40 is set is a clamping screw 39.Can change the pattern that is connected of vertical travel(l)ing rest 10 and model pipeline 12 ends through said set bolt 39.
3-7), be installed in model pipeline fixed mechanism on the turning block 40.
Said model pipeline fixed mechanism comprises model pipeline chuck 41 and the set nut 45 that is threaded with model pipeline chuck 41.
The present invention is equipped with model pipeline 12, and the two ends of said model pipeline 12 are by gland bonnet 42 sealings, and hanging steel rope in the model pipeline 12 is to regulate severe as required.Set the fixed head 43 of fixing said wire rope in the said model pipeline.
The present invention is provided with the Hydrauservo System of data acquisition system (DAS) and said oil cylinder 11, and said data acquisition system (DAS) comprises stay-supported displacement transducer DW, moment of flexure strainometer BW, pore water pressure sensor PT and native counter-force sensor SK.The sensor of said test platform is installed on the model pipeline of said test platform.
Model groove of the present invention also is provided with model groove side rib 15,, the side plate of model groove is a tempered glass side plate 14.Said model groove 13 bottoms are provided with drainage blanket 17.Model trough floor 18 is installed in said drainage blanket 17 bottoms, and the structure of said model trough floor 18 is referring to accompanying drawing 4.
Drawing reference numeral 46 is a fastening bolt, and drawing reference numeral 47 is a holder, and drawing reference numeral 48 is the foot bolt fixed orifice.
When making an experiment; Concrete steps are at first to topple over a certain amount of sea bed silt or clay 16 13 li of model grooves; Pour the water of certain depth above into, the drainage blanket 17 that the bottom is arranged can quicken the discharging consolidation of the soil body in the groove, reaches the sea bed environment that can make an experiment fast.Pipeline draw off gear 19 through model groove top is put into model pipeline 12 on the simulation sea bed then, through the initial position of handle 51 adjusting crossbeams 6, to regulate the initial position of model pipeline 12.
The affixed vertical cyclic load loading procedure in model pipeline end: locking pressure strip 26 can not be free to slide longitudinally-moving platform 29 along longitudinally guiding spare 7; The bolt 39 that is locked can not rotate freely model pipeline 12 around rotation axis 38; Through Hydrauservo System control oil cylinder 11; Adopt different amplitudes, different frequency, different cycle index to load respectively, through the data of each sensor of data acquisition system (DAS) real time record.
Model pipeline end affixed traverse cycle load loading procedure: locking pressure strip 26 can not be free to slide longitudinally-moving platform 29 along longitudinally guiding spare 7; The bolt 39 that is locked can not rotate freely model pipeline 12 around rotation axis 38; Through Hydrauservo System control oil cylinder 8; Adopt different amplitudes, different frequency, different cycle index to load respectively, through the data of each sensor of data acquisition system (DAS) real time record.
The hinged vertical cyclic load loading procedure in model pipeline end: decontrol pressure strip 26 longitudinally-moving platform 29 can be free to slide along longitudinally guiding spare 7; Unclamping set bolt 39 can rotate freely model pipeline 12 around rotation axis 38; Through Hydrauservo System control oil cylinder 11; Adopt different amplitudes, different frequency, different cycle index to load respectively, through the data of each sensor of data acquisition system (DAS) real time record.
Model pipeline end hinged traverse cycle load loading procedure: decontrol pressure strip 26 longitudinally-moving platform 29 can be free to slide along longitudinally guiding spare 7; Unclamping set bolt 39 can rotate freely model pipeline 12 around rotation axis 38; Through Hydrauservo System control oil cylinder 8; Adopt different amplitudes, different frequency, different cycle index to load respectively, through the data of each sensor of data acquisition system (DAS) real time record.
Test is sling model pipeline 12 through model pipeline draw off gear 19 after accomplishing, and the water in the model groove 13 is bled off; Manual work will be simulated seabed soil and stirred, stirs; In the model groove, topple over a certain amount of water again, carry out the fixed of certain hour, proceed to test next time.
Through this model test platform, amplitude, frequency and the cycle index of the dynamic load that can obtain respectively circulating further understood the interactional mechanism of pipeclay to the influence of seabed pipeclay interaction pattern, and sets up the formula that simply can be used for engineering.
Claims (10)
1. novel seabed pipeclay interaction model test platform comprises the model groove that the simulation sea bed is set, and it is characterized in that said test platform also is provided with:
1), is arranged on the column (1) of model groove end;
2), the liftable crossbeam (6) of supporting propulsion system, said crossbeam (6) is connected with lifting drive, said crossbeam passes through its up-down guiding mechanism and is connected with column;
Said propulsion system comprise;
3-1), can vertically be locked at the latch mechanism on the crossbeam along level at the longitudinally-moving platform (29) of translation on the crossbeam and with said longitudinally-moving platform (29); Said longitudinally-moving platform is under the crossbeam; On crossbeam, said crossbeam is provided with the guide of said horizontal longitudinal translation through rolling element bearing;
The horizontal travel(l)ing rest (9) that 3-2), can move along horizontal cross; Said horizontal travel(l)ing rest (9) is under the longitudinally-moving platform (29); Laterally travel(l)ing rest is connected with the longitudinally-moving platform through its guided in translation device, and the translation driving device of said horizontal travel(l)ing rest (9) is installed on the longitudinally-moving platform (29);
3-3), be installed in the oil cylinder (11) on the horizontal travel(l)ing rest, its operative orientation is a vertical direction;
3-4), by the vertical movable platform (37) that said hydraulic oil cylinder driving is gone up and down, said vertical movable platform is connected with horizontal travel(l)ing rest (9) through its up-down guiding mechanism;
3-5), be installed in vertical travel(l)ing rest (10) on the vertical movable platform (37);
3-6), be hinged on the turning block (40) of vertical travel(l)ing rest (10) bottom, its rotation axis to be said laterally, said turning block also is equipped with the latch mechanism that prevents its rotation;
3-7), be installed in model pipeline fixed mechanism on the turning block (40).
2. novel seabed pipeclay interaction model test platform as claimed in claim 1; The lifting drive that it is characterized in that said crossbeam comprises: traction rope, traction rope reel, reel operating grip; Connection reducer between said reel operating grip and the traction rope reel, said column is provided with the pulley of said traction rope.
3. novel seabed pipeclay interaction model test platform as claimed in claim 1, the up-down guiding mechanism that it is characterized in that said crossbeam is vertical clamp (5), the ways on said clamp (5) and the column is slidingly connected.
4. novel seabed pipeclay interaction model test platform as claimed in claim 1; The up-down guiding mechanism that it is characterized in that said vertical movable platform comprises vertical lines guide rail and vertical slide block; Said vertical movable platform is connected with vertical slide block, and said oil cylinder (11) is connected with vertical slide block with vertical movable platform.
5. novel seabed pipeclay interaction model test platform as claimed in claim 1 is characterized in that the latch mechanism that said turning block sets is clamping screw (39).
6. novel seabed pipeclay interaction model test platform as claimed in claim 1, the latch mechanism that it is characterized in that said longitudinally-moving platform (29) are the pressure strip (26) that is on the said guide.
7. novel seabed pipeclay interaction model test platform as claimed in claim 1 is characterized in that said model pipeline fixed mechanism comprises model pipeline chuck (41) and the set nut (45) that is threaded with model pipeline chuck (41).
8. novel seabed pipeclay interaction model test platform as claimed in claim 1; It is characterized in that it is equipped with model pipeline (12); The two ends of said model pipeline (12) are sealed by gland bonnet (42); The interior hanging steel rope of model pipeline (12) sets the fixed head (43) of fixing said wire rope in the said model pipeline.
9. novel seabed pipeclay interaction model test platform as claimed in claim 1; It is characterized in that it is equipped with model pipeline (12); The sensor of said test platform is installed on the model pipeline of said test platform, and said sensor comprises stay-supported displacement transducer, moment of flexure strainometer, pore water pressure sensor and native counter-force sensor.
10. novel seabed pipeclay interaction model test platform as claimed in claim 1; It is characterized in that it is provided with the Hydrauservo System of data acquisition system (DAS) and oil cylinder, said data acquisition system (DAS) comprises stay-supported displacement transducer, moment of flexure strainometer, pore water pressure sensor and native counter-force sensor.
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| CN103439130A (en) * | 2013-08-06 | 2013-12-11 | 中国科学院力学研究所 | Device and method for simulating dynamic coupling of steel catenary riser and seabed |
| CN103499487A (en) * | 2013-10-13 | 2014-01-08 | 大连理工大学 | Complex load tester |
| CN104729843A (en) * | 2015-02-25 | 2015-06-24 | 中国科学院力学研究所 | Loading system for simulating pipe and soil power interaction under ocean current loads |
| CN104849085A (en) * | 2015-05-28 | 2015-08-19 | 天津大学 | Seabed tube section circulation loading monitoring and testing system |
| CN105004500A (en) * | 2015-06-04 | 2015-10-28 | 浙江海洋学院 | Steel catenary riser integral analysis test apparatus with pipe-soil interaction taken into consideration |
| CN105021383A (en) * | 2015-06-08 | 2015-11-04 | 浙江海洋学院 | A steel catenary standpipe integral analyzing and testing apparatus |
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| CN105588698A (en) * | 2016-01-07 | 2016-05-18 | 中国石油大学(北京) | Seabed pipeline simulation impact test system |
| CN105866856A (en) * | 2016-04-22 | 2016-08-17 | 天津大学 | Intelligent hemispheric detecting instrument for axial action of seabed pipe soil |
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| CN107966267A (en) * | 2017-10-26 | 2018-04-27 | 浙江大学 | A kind of device for simulating sea bed weak soil catastrophe overall process under typhoon and shallow embedding high pressure gas synergy |
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| CN103439130B (en) * | 2013-08-06 | 2015-10-14 | 中国科学院力学研究所 | The device and method of simulation steel catenary riser and sea bed power coupling |
| CN103439130A (en) * | 2013-08-06 | 2013-12-11 | 中国科学院力学研究所 | Device and method for simulating dynamic coupling of steel catenary riser and seabed |
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| CN104729843A (en) * | 2015-02-25 | 2015-06-24 | 中国科学院力学研究所 | Loading system for simulating pipe and soil power interaction under ocean current loads |
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| CN105067237A (en) * | 2015-07-27 | 2015-11-18 | 天津大学 | Unconstrained pipe section horizontal cyclic loading test system |
| CN105067237B (en) * | 2015-07-27 | 2017-07-04 | 天津大学 | Without constraint pipeline section level to CYCLIC LOADING test system |
| CN105588698B (en) * | 2016-01-07 | 2017-10-20 | 中国石油大学(北京) | Submarine pipeline simulating impact pilot system |
| CN105588698A (en) * | 2016-01-07 | 2016-05-18 | 中国石油大学(北京) | Seabed pipeline simulation impact test system |
| CN105866856A (en) * | 2016-04-22 | 2016-08-17 | 天津大学 | Intelligent hemispheric detecting instrument for axial action of seabed pipe soil |
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| CN107966267A (en) * | 2017-10-26 | 2018-04-27 | 浙江大学 | A kind of device for simulating sea bed weak soil catastrophe overall process under typhoon and shallow embedding high pressure gas synergy |
| CN108007792A (en) * | 2017-11-15 | 2018-05-08 | 天津大学 | In-service deep seafloor buried pipeline earthquake-high pressure load combination loading test method |
| CN108007792B (en) * | 2017-11-15 | 2020-05-08 | 天津大学 | Earthquake-high pressure load combined loading test method for in-service deep sea seabed buried pipeline |
| CN109406186A (en) * | 2018-12-07 | 2019-03-01 | 中国石油大学(北京) | Deep Water Steel catenary riser pigging simulation test device |
| CN111157046A (en) * | 2020-01-07 | 2020-05-15 | 东北大学 | Testing device of seabed oil and gas pipeline detection equipment |
| CN111983185A (en) * | 2020-07-24 | 2020-11-24 | 河海大学 | Reservoir bank water level change and slope angle variable landslide model test device and method under coupling action of earthquake and rainfall |
| CN111983185B (en) * | 2020-07-24 | 2023-12-01 | 河海大学 | Reservoir bank water level change and slope angle variable landslide model test device and method under earthquake and rainfall coupling effect |
| CN113884289A (en) * | 2021-09-27 | 2022-01-04 | 天津大学 | End part restraint device for deep water steel catenary riser contact section test platform |
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Application publication date: 20120822 |