CN103411591B - A kind of subsea survey instrument fixes caution device and recovery method of jettisoninging - Google Patents
A kind of subsea survey instrument fixes caution device and recovery method of jettisoninging Download PDFInfo
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- CN103411591B CN103411591B CN201310323973.4A CN201310323973A CN103411591B CN 103411591 B CN103411591 B CN 103411591B CN 201310323973 A CN201310323973 A CN 201310323973A CN 103411591 B CN103411591 B CN 103411591B
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Abstract
The invention discloses a kind of subsea survey instrument and fix caution device, comprise surface platform, anchor line I, anchor line II, anchor I, anchor II, end rope I, end rope II, instrument stand; Surface platform is provided with alarming device; Anchor line I is connected with surface platform respectively with one end of anchor line II, and anchor line I and anchor line II are uniformly distributed on surface platform with the tie point of surface platform; The other end and anchor I and the end of anchor line I restrict I one end be connected; The other end and anchor II and the end of anchor line II restrict II one end be connected; End rope I is connected with instrument stand with the other end of end rope II, and end rope I and end rope II are uniformly distributed on instrument stand with the tie point of instrument stand; The invention also discloses the recovery method of jettisoninging of this equipment.The present invention can make surveying instrument stably be fixed on seabed, makes it not be subject to the impact of sea tide and weather extremes, does not drift about; And the alarming effect of its water surface is obviously eye-catching, is easy to be dodged by passing ships identification, thus avoids instrument to be damaged by passing ships.
Description
Technical field
The present invention relates to marine charting field, particularly a kind of subsea survey instrument fixes caution device and recovery method of jettisoninging.
Background technology
When the bottom topographic survey of the construction of oceanographic engineering, in earlier stage scientific research stage and construction stage and fairway depth monitoring, usually need to gather the relevant hydrographic data such as offshore tidal level and trend.When offshore is without island or when needing in offshore engineering region to arrange interim tidal level station or stream gaging station, often need throw the surveying instrument such as tide gauge or trend instrument in setting seabed, during operation, due to offshore contact cargo ship, to only reach fishing boat more, there is fishing boat trawling simultaneously, the instrument thrown often can be destroyed by passing ships because warning mark is not obvious and fixed effect is not good, or under harsh climate condition, due to fixed effect not good and drift about away from the original place that throws, cause giving instrument for change, both suitable economic loss had been caused, more lose precious measurement data, and incur loss through delay the carrying out of research work.
Existing subsea survey instrument throw conventional the having of fixing Apparatus and method for: 1. single anchor throws method, and namely an equipment racks connects anchor, then on anchor, connects a ball float as water surface mark.Although the method, structure are simple, but the measure shortcoming that protection underwater instrument is lost, only with an anchor retainer instrument shelf, stability is not good enough, be subject to the impact of sea tide and weather extremes, cause the drift of instrument, and water surface warning mark is not obvious, is not easily found by passing ships thus be vulnerable to destroy.2. acoustic communication release throws method, it is the combination of acoustic communication system and release, wherein acoustic communication system comprises deck unit waterborne and underwateracoustic communicator, also need to configure a set of Underwater Navigation product and accessory, equipment set needs hundreds of thousands yuan, cost is high, but job state and method and single anchor to throw method close, there is same protection and the problem of secure context.
Summary of the invention
In order to solve the problem, the invention provides a kind of subsea survey instrument and fixing caution device and recovery method of jettisoninging.The technical problem to be solved in the present invention is: poor stability fixing when subsea survey instrument works in seabed, is easy to drift and loses; And it is not obvious at the alarming effect on sea, be easy to ship destruction of being come and gone.In order to solve the problems of the technologies described above, technical scheme of the present invention is: caution device fixed by subsea survey instrument, it is characterized in that, comprises surface platform, anchor line I, anchor line II, anchor I, anchor II, end rope I, end rope II, instrument stand; Described surface platform is provided with alarming device; Described anchor line I is connected with surface platform respectively with one end of anchor line II, and described anchor line I and anchor line II are uniformly distributed on surface platform with the tie point of surface platform; The other end and anchor I and the end of described anchor line I restrict I one end be connected; The other end and anchor II and the end of described anchor line II restrict II one end be connected; Rope of the described end I is connected with instrument stand with the other end of end rope II, and rope of the described end I and end rope II are uniformly distributed on instrument stand with the tie point of instrument stand; The length of described anchor line I and anchor line II is equal; The length of rope of the described end I and end rope II is equal; Being equal in weight of described anchor I and anchor II.
In such scheme, restrict distance and anchor link 1 ~ 3 meter of on II of described end rope I and the end is equipped with cord-pressing block.
In such scheme, the weight of described cord-pressing block is 5 ~ 10kg.
In such scheme, described alarming device comprises warning lamp and alarm flag.Alarm flag be convenient to passing ships by day Timeliness coverage dodge; And warning lamp glimmered at night, be convenient to passing ships Timeliness coverage and dodge.
Present invention also offers the recovery method of jettisoninging that caution device fixed by subsea survey instrument.Comprise the following steps: A. measure dumping point low slack tide depth of water H, higher low tide water-head Δ h, fluctuation tide maximum flow of water speed V and trend to;
B. according to the data that steps A records, anchor line, the length of end rope and the weight of anchor is determined; And design the dumping point of anchor I and anchor II; The dumping point of described anchor I is positioned at the trend updrift side of instrument dumping point, is the length of restricting at the end with the distance of instrument dumping point; The dumping point of described anchor II is positioned at the trend downstream direction of instrument dumping point, is the length of restricting at the end with the distance of instrument dumping point;
C. the alarming device on surface platform is installed; Set the surveying instrument that will be placed in seabed and by apparatus installation on instrument stand; One end of end rope I and end rope II is connected on instrument stand; The other end of end rope I and end rope II is carried out rope sling; One end of anchor line I is connected with anchor I; The rope sling of end rope I is worn the junction to anchor line I and anchor I; The other end of anchor line I is connected with surface platform; One end of anchor line II is connected with anchor II; The rope sling of end rope II is worn the junction to anchor line II and anchor II; The other end of anchor line II is in free state;
D. after arriving predetermined anchor I dumping point, dished out by anchor I, the rope sling end of end rope I sinks thereupon simultaneously; And the position of position the record anchor I; Then, fair tide direction comes downwards to instrument dumping point, and the instrument stand being provided with surveying instrument is placed in seabed; Then surface platform is jettisoninged in the sea of this instrument dumping point, and the position of position the record instrument frame and surface platform.
E. fair tide direction continues to come downwards to anchor II dumping point, is jettisoninged by anchor II, and simultaneously the rope sling end of end rope II sinks thereupon, locates and records the position of anchor II, being finally connected with surface platform by the free-end of anchor line II;
F., after subsea survey apparatus measures task completes, regain the step of surveying instrument: according to tidal water flow when reclaiming to, first remove the connection between the anchor line of trend downstream part and surface platform; Then restrict in the anchor reclaiming this anchor line and be connected with this anchor line, the end; Thereafter, reclaim seabed instrument stand and on instrument; Again, remove the anchor line of trend upstream and the connection of surface platform, and surface platform is regained, the rope sling end restricted in the end be now connected with upstream extremity anchor can be deviate from regain from removing with surface platform the anchor line free-end be connected; Finally reclaim anchor line and the anchor of trend upstream.
In such scheme, in described step C, at the rope sling end 1 ~ 3m place apart from described end rope I and end rope II, respectively fix a cord-pressing block, the weight of described cord-pressing block is 5 ~ 10kg;
In such scheme, in described step B, the length calculation method of anchor line is:
wherein, S is anchor line length, and its unit is m; H is the depth of water of low slack tide, and its unit is m; △ h is the water-head of the height slack tide of ocean, and its unit is m; V is the maximum flow of water speed of the fluctuation time of tide, and its unit is m/s; λ is the Lidar Equation coefficient of ocean, and its empirical value is 0.1 ~ 0.3.
In such scheme, in described step B, the end length calculation method of rope is:
, wherein, DS is end rope length, and its unit is m; S is anchor line length, and its unit is m; H is the depth of water of low slack tide, and its unit is m; △ h is the water-head of the height slack tide of ocean, and its unit is m.
In such scheme, in described step B, the computing formula of the weight of anchor is:
wherein, K is anchor weight, and its unit is kg; V is the maximum flow of water speed of the fluctuation time of tide, and its unit is m/s.
Advantage of the present invention and beneficial effect are: the invention provides a kind of equipment being fixed on seabed that can make subsea survey instrument stabilizer, make it not be subject to the impact of sea tide and weather extremes, do not drift about; And the alarming effect of its water surface is obviously eye-catching, is easy to be dodged by passing ships identification, thus avoids instrument to be damaged by passing ships.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is structural representation of the present invention.
In figure: 1, rope sling 12, warning lamp 13, the alarm flag of surface platform 2, anchor line I 3, anchor line II 4, anchor I 5, anchor II 6, end rope I 7, end rope II 8, cord-pressing block 9, instrument stand 10, subsea survey instrument 11, end rope
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
As shown in Figure 1, the present invention is that a kind of subsea survey instrument fixes caution device and recovery method of jettisoninging, and comprises surface platform 1, anchor line I 2, anchor line II 3, anchor I 4, anchor II 5, end rope I 6, end rope II 7, instrument stand 9, instrument stand 9 is provided with subsea survey instrument 10; Surface platform 1 is provided with warning lamp 12 and alarm flag 13; Alarm flag be convenient to passing ships by day Timeliness coverage dodge; And warning lamp glimmered at night, be convenient to passing ships Timeliness coverage and dodge.
Embodiment 1
Surveying instrument dumping point is coastal marine site near Ningbo of Zhejiang.First, the depth of water H of the low slack tide in surveying instrument dumping point is 10m; Higher low tide potential difference Δ h is 4m; Fluctuation tide maximum flow of water speed V is 1.5m/s; And trend to; Then according to above-mentioned data, anchor line, the length of end rope and the weight of anchor is determined; Concrete grammar is: the length calculation method of anchor line:
wherein, λ is the Lidar Equation coefficient of ocean, and getting its empirical value is 0.1; As calculated, the length of anchor line is 32.6m.The end length calculation method of rope is:
as calculated, the length of end rope is 29.4m; The computing formula of the weight of anchor is:
as calculated, the weight of anchor is 61.5kg; Then, the dumping point of anchor I 4 and anchor II 5 is determined; The dumping point of anchor I 4 is the trend updrift side of instrument dumping point, and the distance to instrument dumping point is the length 29.4m of end rope; The dumping point of anchor II 5 is the trend downstream direction of instrument dumping point, and the distance to instrument dumping point is the length 29.4m of end rope;
Alarm flag and warning lamp are fixed on surface platform, set the time that warning lamp is started working; Then, the surveying instrument that will be placed in seabed will be set and by apparatus installation on instrument stand; One end of end rope I 6 and end rope II 7 is connected on instrument stand 9; The other end of end rope I 6 and end rope II 7 is carried out rope sling 11 and fixed cord-pressing block 8 at distance rope sling 2 meters of; The weight of cord-pressing block 8 is 5kg; One end of anchor line I 2 is connected with anchor I 4; The rope sling of end rope I 6 is worn the junction to anchor line I 2 and anchor I 4; The other end of anchor line I 2 is connected with surface platform 1; One end of anchor line II 3 is connected with anchor II 5; The rope sling of end rope II 7 is worn the junction to anchor line II 3 and anchor II 5; The other end of anchor line II 3 is in free state.
Then arrive anchor I 4 dumping point, first dished out by anchor I 4, the rope sling end of end rope I 6 sinks with anchor line I 2 with the cord-pressing block 8 be attached thereto simultaneously; And the position of position the record anchor I; Then, fair tide direction comes downwards to instrument dumping point, and the instrument stand 9 being provided with surveying instrument 10 is placed in seabed; Then surface platform 1 is jettisoninged in the sea of instrument dumping point, and the position of position the record instrument frame 9 and surface platform 1.
After instrument stand 9 and surface platform 1 have been jettisoninged, fair tide direction continues to come downwards to anchor II 5 dumping point, and sinks to the bottom down rope II 7 and the cord-pressing block 8 on it simultaneously, locates and records the position of anchor II 5, being finally connected with surface platform 1 by the free-end of anchor line II 7.
After subsea survey apparatus measures task completes, regain the step of surveying instrument: according to tidal water flow when reclaiming to, first remove the connection between the anchor line of trend downstream part and surface platform; Then restrict in the anchor reclaiming this anchor line and be connected with this anchor line, the end; Thereafter, reclaim seabed instrument stand and on instrument; Then, remove the anchor line of trend upstream and the connection of surface platform, and surface platform is regained, the rope sling end restricted in the end be now connected with upstream extremity anchor can be deviate from regain from removing with surface platform the anchor line free-end be connected; Finally reclaim anchor line and the anchor of trend upstream.
Embodiment 2
Surveying instrument dumping point is strong tide in Qiantang Estuary district.First, the depth of water H of the low slack tide in surveying instrument dumping point is 3m; Higher low tide potential difference Δ h is 7m; Fluctuation tide maximum flow of water speed V is 6m/s; And trend to; Then according to above-mentioned data, anchor line, the length of end rope and the weight of anchor is determined; Concrete grammar is: the length calculation method of anchor line:
wherein, λ is the Lidar Equation coefficient of ocean, and getting its empirical value is 0.1; As calculated, the length of anchor line is 35.5m.The end length calculation method of rope is:
as calculated, the length of end rope is 34m; The computing formula of the weight of anchor is:
as calculated, the weight of anchor is 122.5kg; Then, the dumping point of anchor I 4 and anchor II 5 is determined; The dumping point of anchor I 4 is the trend updrift side of instrument dumping point, and the distance to instrument dumping point is the length 34m of end rope; The dumping point of anchor II 5 is the trend downstream direction of instrument dumping point, and the distance to instrument dumping point is the length 34m of end rope;
Alarm flag and warning lamp are fixed on surface platform, set the time that warning lamp is started working; Then, the surveying instrument that will be placed in seabed will be set and by apparatus installation on instrument stand; One end of end rope I 6 and end rope II 7 is connected on instrument stand 9; The other end of end rope I 6 and end rope II 7 is carried out rope sling 11 and fixed cord-pressing block 8 at distance rope sling 2 meters of; The weight of cord-pressing block 8 is 10kg; One end of anchor line I 2 is connected with anchor I 4; The rope sling of end rope I 6 is worn the junction to anchor line I 2 and anchor I 4; The other end of anchor line I 2 is connected with surface platform 1; One end of anchor line II 3 is connected with anchor II 5; The rope sling of end rope II 7 is worn the junction to anchor line II 3 and anchor II 5; The other end of anchor line II 3 is in free state.
Then arrive anchor I 4 dumping point, first dished out by anchor I 4, the rope sling end of end rope I 6 sinks with anchor line I 2 with the cord-pressing block 8 be attached thereto simultaneously; And the position of position the record anchor I; Then, fair tide direction comes downwards to instrument dumping point, and the instrument stand 9 being provided with surveying instrument 10 is placed in seabed; Then surface platform 1 is jettisoninged in the sea of instrument dumping point, and the position of position the record instrument frame 9 and surface platform 1.
After instrument stand 9 and surface platform 1 have been jettisoninged, fair tide direction continues to come downwards to anchor II 5 dumping point, and sinks to the bottom down rope II 7 and the cord-pressing block on it simultaneously, locates and records the position of anchor II 5, being finally connected with surface platform 1 by the free-end of anchor line II 7.
After subsea survey apparatus measures task completes, regain the step of surveying instrument: according to tidal water flow when reclaiming to, first remove the connection between the anchor line of trend downstream part and surface platform; Then restrict in the anchor reclaiming this anchor line and be connected with this anchor line, the end; Thereafter, reclaim seabed instrument stand and on instrument; Then, remove the anchor line of trend upstream and the connection of surface platform, and surface platform is regained, the rope sling end restricted in the end be now connected with upstream extremity anchor can be deviate from regain from removing with surface platform the anchor line free-end be connected; Finally reclaim anchor line and the anchor of trend upstream.
The invention provides the computing formula of anchor line length, end rope length and anchor weight, in real work, those skilled in the art can make suitable fine setting on the basis of the calculated result according to implementation condition and experience.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. caution device fixed by subsea survey instrument, it is characterized in that, comprises surface platform, anchor line I, anchor line II, anchor I, anchor II, end rope I, end rope II, instrument stand; Described surface platform is provided with alarming device; Described anchor line I is connected with surface platform respectively with one end of anchor line II, and described anchor line I and anchor line II are uniformly distributed on surface platform with the tie point of surface platform; The other end and anchor I and the end of described anchor line I restrict I one end be connected; The other end and anchor II and the end of described anchor line II restrict II one end be connected; Rope of the described end I is connected with instrument stand with the other end of end rope II, and rope of the described end I and end rope II are uniformly distributed on instrument stand with the tie point of instrument stand; The length of described anchor line I and anchor line II is equal; The length of rope of the described end I and end rope II is equal; Being equal in weight of described anchor I and anchor II.
2. caution device fixed by subsea survey instrument according to claim 1, it is characterized in that, restrict distance and anchor link 1 ~ 3 meter of on II of described end rope I and the end is equipped with cord-pressing block.
3. caution device fixed by subsea survey instrument according to claim 2, it is characterized in that, the weight of described cord-pressing block is 5 ~ 10kg.
4. fix caution device according to the arbitrary described subsea survey instrument of claims 1 to 3, it is characterized in that, described alarming device comprises warning lamp and alarm flag.
5. the recovery method of jettisoninging of caution device fixed by subsea survey instrument described in claim 1, it is characterized in that, comprises the following steps:
A. the depth of water H of the low slack tide of surveying instrument dumping point, height tidal level water-head Δ h, fluctuation tide maximum flow of water speed V and trend to;
B. according to the data that steps A records, anchor line, the length of end rope and the weight of anchor is determined; And design the dumping point of anchor I and anchor II; The dumping point of described anchor I is positioned at the trend updrift side of instrument dumping point, is the length of restricting at the end with the distance of instrument dumping point; The dumping point of described anchor II is positioned at the trend downstream direction of instrument dumping point, is the length of restricting at the end with the distance of instrument dumping point;
C. the alarming device on surface platform is installed; Set the surveying instrument that will be placed in seabed and by apparatus installation on instrument stand; One end of end rope I and end rope II is connected on instrument stand; The other end of end rope I and end rope II is carried out rope sling; One end of anchor line I is connected with anchor I; The rope sling of end rope I is worn the junction to anchor line I and anchor I; The other end of anchor line I is connected with surface platform; One end of anchor line II is connected with anchor II; The rope sling of end rope II is worn the junction to anchor line II and anchor II; The other end of anchor line II is in free state;
D. after arriving predetermined anchor I dumping point, dished out by anchor I, the rope sling end of end rope I sinks thereupon simultaneously; And the position of position the record anchor I; Then, fair tide direction comes downwards to instrument dumping point, and the instrument stand being provided with surveying instrument is placed in seabed; Then surface platform is jettisoninged in the sea of this instrument dumping point, and the position of position the record instrument frame and surface platform;
E. fair tide direction continues to come downwards to anchor II dumping point, is jettisoninged by anchor II, and simultaneously the rope sling end of end rope II sinks thereupon, locates and records the position of anchor II, being finally connected with surface platform by the free-end of anchor line II;
F., after subsea survey apparatus measures task completes, regain the step of surveying instrument: according to tidal water flow when reclaiming to, first remove the connection between the anchor line of trend downstream part and surface platform; Then restrict in the anchor reclaiming this anchor line and be connected with this anchor line, the end; Thereafter, reclaim seabed instrument stand and on instrument; Again, remove the anchor line of trend upstream and the connection of surface platform, and surface platform is regained, the rope sling end restricted in the end be now connected with upstream extremity anchor can be deviate from regain from removing with surface platform the anchor line free-end be connected; Finally reclaim anchor line and the anchor of trend upstream.
6. the recovery method of jettisoninging of caution device fixed by subsea survey instrument according to claim 5, it is characterized in that, in described step C, at the rope sling end 1 ~ 3m place apart from rope of the described end I and end rope II, respectively fix a cord-pressing block, the weight of described cord-pressing block is 5 ~ 10kg.
7. fix the recovery method of jettisoninging of caution device according to the arbitrary described subsea survey instrument of claim 5 or 6, it is characterized in that, in described step B, the length calculation method of anchor line is:
wherein, S is anchor line length, and its unit is m; H is the depth of water of low slack tide, and its unit is m; △ h is the water-head of the height slack tide of ocean, and its unit is m; V is the maximum flow of water speed of the fluctuation time of tide, and its unit is m/s; λ is the Lidar Equation coefficient of ocean, and its empirical value is 0.1 ~ 0.3.
8. the recovery method of jettisoninging of caution device fixed by subsea survey instrument according to claim 7, it is characterized in that, in described step B, the end length calculation method of rope is:
wherein, DS is end rope length, and its unit is m; S is anchor line length, and its unit is m; H is the depth of water of low slack tide, and its unit is m; △ h is the water-head of the height slack tide of ocean, and its unit is m.
9. fix the recovery method of jettisoninging of caution device according to the arbitrary described subsea survey instrument of claim 5 or 6, it is characterized in that, in described step B, the computing formula of the weight of anchor is:
wherein, K is anchor weight, and its unit is kg; V is the maximum flow of water speed of the fluctuation time of tide, and its unit is m/s.
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| CN202320724U (en) * | 2011-10-31 | 2012-07-11 | 国家***南海工程勘察中心 | Strong ocean current resistant main and auxiliary double-buoy anchoring system |
| CN202574571U (en) * | 2012-04-17 | 2012-12-05 | 浙江省河海测绘院 | Flow measuring platform |
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| JPH10253355A (en) * | 1997-03-11 | 1998-09-25 | Unyusho Daisan Kowan Kensetsu Kyokucho | Ultrasonic type pulse height meter |
| GB201011445D0 (en) * | 2010-07-07 | 2010-08-25 | Kirkby Alan D | Underwater oil and gas collection system |
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| CN202320724U (en) * | 2011-10-31 | 2012-07-11 | 国家***南海工程勘察中心 | Strong ocean current resistant main and auxiliary double-buoy anchoring system |
| CN202574571U (en) * | 2012-04-17 | 2012-12-05 | 浙江省河海测绘院 | Flow measuring platform |
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