CN104988926A - Deep water stone throwing method and device - Google Patents
Deep water stone throwing method and device Download PDFInfo
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- CN104988926A CN104988926A CN201510366652.1A CN201510366652A CN104988926A CN 104988926 A CN104988926 A CN 104988926A CN 201510366652 A CN201510366652 A CN 201510366652A CN 104988926 A CN104988926 A CN 104988926A
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Abstract
The invention discloses a deep water stone throwing method and device. The deep water stone throwing method includes the steps that S1, a stone throwing boat conveys stone to the position near a region where the stone is thrown; S2, a stone fall detection device is installed at the first end of a telescopic first stone fall pipe, and the first stone fall pipe is placed in water; S3, the second end of the first stone fall pipe is sequentially connected with a plurality of second stone fall pipes and a third stone fall pipe with the side faces provided with water inlets till the stone fall detection device descends above a marine pipeline; the first stone fall pipe, the second stone fall pipes and the third stone fall pipe are sequentially communicated to form a stone fall pipeline allowing the stone to fall onto the pipeline, and the third stone fall pipe is located at the upper end of the stone fall pipeline; S4, the stone fall detection device guides the stone fall pipeline to move above a route of the pipeline, the stone falls onto the pipeline from the stone throwing boat through the stone fall pipeline, and stone layers covering the pipeline are formed. The operating water depth is large, adaptive geologic structures are wider, the deep water stone throwing method and device adapt to more complex sea conditions, and working efficiency is higher.
Description
Technical field
The present invention relates to field of ocean engineering, particularly relate to a kind of deep water jackstone method and apparatus.
Background technology
In offshore and gas development, underwater facility (sea pipe, umbilical cables, cable etc.) is often because of uneven, the instability of geological conditions, artificial the leaving the factors such as weight and cause damage of sea bed.The measure of protection underwater facility stability and security is a lot; as ditching, mixed earth briquetting, sand pocket backfill, sand pocket support, underwater dumped rockfill etc.; these measures respectively have superiority; sometimes also can several measure integrated applications according to field condition; under general environmental conditions, select effective, the most economic scheme should consider cost factor and technical feasibility.
Underwater dumped rockfill, as one of traditional underwater facility safeguard measure, is used widely in marine petroleum development.Underwater dumped rockfill mainly adopts stone dumper to realize, and traditional stone dumper comprises with Types Below:
1, the jackstone barge of digging machine is carried; Stone is thrown and is put to seabed by the digging machine carried by barge during operation, and this kind of marine vessel applications depth of water is more shallow, is generally less than 20m, is mainly used in the seabed pipeline section of logging in construction operation;
2, formula stone dumper is thrown in side; Pushed fast in water by stone by shipboard hydraulic platform during operation, jackstone precision is poor, and operating water depth is generally 20m-150m.
The underwater dumped rockfill that traditional stone dumper carries out, the application depth of water is more shallow, precision is low, fails to be widely used in deep water offshore oil engineering.And along with world ocean oil development trend deep water, deep-sea geologic structure is complicated, simple ditching has been difficult to the object reaching protection deep water underwater production facility stability, therefore, is necessary that design one is applicable to deep water jackstone equipment, solves foregoing problems.
Summary of the invention
The technical problem to be solved in the present invention is, provides a kind of and realizes deep water jackstone, deep water jackstone method and apparatus that operating efficiency is high.
The technical solution adopted for the present invention to solve the technical problems is: provide a kind of deep water jackstone method, comprise the following steps:
Building stones are transported to and treat jackstone areas adjacent by S1, stone dumper;
S2, falling rocks sniffer is arranged on the first end of telescopic first falling rocks pipe, the described first falling rocks pipe with described falling rocks sniffer is put into water;
S3, on the second end of described first falling rocks pipe, connect several second falling rocks pipe and side the 3rd falling rocks pipe with inlet opening successively, until drop to above the pipeline in seabed by described falling rocks sniffer;
Described first falling rocks pipe, the second falling rocks pipe and the 3rd falling rocks pipe are communicated with successively to be formed and fall to falling rocks pipeline on described pipeline for building stones, and described 3rd falling rocks pipe is positioned at the upper end of described falling rocks pipeline;
S4, described stone dumper enter treats jackstone region, described falling rocks sniffer guides described falling rocks pipeline to move above the route of described pipeline, building stones are fallen on described pipeline by described falling rocks pipeline from described stone dumper, form the stone layer covered by described pipeline.
Preferably, in described step S4, the cross section slope ratio of described stone layer is not less than 1:2.5; The thickness of described stone layer is not less than 0.5m; The end face width of described stone layer is not less than 1m.
Preferably, in described step S4, described first falling rocks pipe is in preset height by the height of outlet above described pipeline of falling rocks pipeline described in extension and contraction control; Described preset height is 0.3-1.5m.
Preferably, in described step S1, described building stones comprise the first building stones and the second building stones, and the particle diameter of described second building stones is greater than the particle diameter of described first building stones;
Described step S4 comprises:
S4-1, described first building stones are fallen on described pipeline by described falling rocks pipeline, form the first stone layer covering described pipeline;
S4-2, described second building stones to be fallen on described first stone layer by described falling rocks pipeline, form the second stone layer.
Preferably, the particle diameter of described first building stones is 10-90mm; The particle diameter of described second building stones is 60-200mm.
Preferably, in described step S2, described falling rocks sniffer comprises body, to be arranged in the middle part of described body and the center-aisle of through described body upper and lower side, be arranged on described body relative to both sides telescopic manipulator, be arranged on propulsive mechanism and the location in described body and gather described pipeline relevant information and the information of collection be sent to the data processing centre on described stone dumper by umbilical cables; The first end of described first falling rocks pipe is located in described center-aisle;
In described step S4, the manipulator of described falling rocks sniffer launches and parallels with the route direction of described pipeline; Described propulsive mechanism orders about described falling rocks sniffer and moves to different directions, drives the outlet of described falling rocks pipeline to move above described pipeline.
Preferably, described propulsive mechanism comprises several propeller laying respectively at several sides of described body; In described step S4, described propulsive mechanism orders about described falling rocks sniffer by described propeller and moves above described pipeline;
Described detection system comprises and is arranged on multi-beam echo sounding instrument on described manipulator and terrain data survey meter; In described step S4, the multi-beam echo sounding instrument on two described manipulators and terrain data survey meter detect the described pipeline and seabed that cover the described pipeline after described stone layer and seabed and stone layer to be covered respectively;
Described detection system also comprise in navigator, depth-sounder, altimeter, thermohaline deep investigation instrument, underwater camera device, underwater illuminating device and scanning sensor one or more, one or more in above-mentioned are arranged on described body.
The present invention also provides a kind of deep water jackstone equipment, jackstone is carried out for connecting stone dumper, comprise falling rocks sniffer, telescopic first falling rocks pipe, several second falling rocks pipe and the 3rd falling rocks pipe, described first falling rocks pipe, the second falling rocks pipe and the 3rd falling rocks pipe are in turn connected to form and fall to falling rocks pipeline on submerged pipeline for building stones; The side of described 3rd falling rocks pipe is provided with several inlet opening; Described falling rocks sniffer is arranged on the first end of described first falling rocks pipe away from described second falling rocks pipe.
Preferably, described falling rocks sniffer comprise body, to be arranged in the middle part of described body and the center-aisle of through described body upper and lower side, be arranged on described body relative to both sides telescopic manipulator, be arranged on propulsive mechanism and the location in described body and gather described pipeline relevant information and the information of collection be sent to the data processing centre on described stone dumper by umbilical cables; The first end of described first falling rocks pipe is located in described center-aisle.
Preferably, described propulsive mechanism comprises several propeller laying respectively at several sides of described body;
Described detection system comprises and is arranged on multi-beam echo sounding instrument on described manipulator and terrain data survey meter;
Described detection system also comprise in navigator, depth-sounder, altimeter, thermohaline deep investigation instrument, underwater camera device, underwater illuminating device and scanning sensor one or more, one or more in above-mentioned are arranged on described body.
The present invention is applicable to deep water jackstone to carry out jackstone protection to the pipeline of profundal zone; Adopting falling rocks pipe and falling rocks sniffer to realize building stones falls on the pipeline of appointed area, seabed, reduces building stones to the impact of pipeline.Operating water depth of the present invention is large, and compared to other the safeguard measure under water such as ditching, the geologic structure of adaptation is wider, adapt to more complicated sea situation, and operating efficiency is higher.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the structural representation that the deep water jackstone equipment of one embodiment of the invention carries out deep water jackstone;
Fig. 2 is the structural representation of the jackstone equipment of deep water shown in Fig. 1 and pipeline;
Fig. 3 is the cross-sectional structure schematic diagram of jackstone rear line and two-layer stone layer in the present invention;
Fig. 4-Fig. 6 is the structural representation of the first falling rocks pipe in the present invention, the second falling rocks pipe and the 3rd falling rocks pipe respectively;
Fig. 7 is that in the present invention, section curve figure is put in the throwing of stone layer.
Detailed description of the invention
In order to there be understanding clearly to technical characteristic of the present invention, object and effect, now contrast accompanying drawing and describe the specific embodiment of the present invention in detail.
With reference to figure 1,2; the deep water jackstone method of one embodiment of the invention; for deep water jackstone (operating water depth can reach 15-2000m), carry out jackstone protection to the pipeline 10 (comprising pipeline, ocean bottom cable etc.) of (seabed) profundal zone, the method comprises the following steps:
Building stones are transported to and treat jackstone areas adjacent by S1, stone dumper 1.Described treat that jackstone areas adjacent can be and treat 150m place, jackstone region.
Before this step S1, building stones are loaded on stone dumper 1.Comparatively greatly, according to the difference of operation marine site leaving wharf distance, building stones load the 20%-30% that (dock operation) accounts for whole engineering time to the accounting in whole jackstone process that is loaded in of building stones, and the rate of loading directly has influence on whole engineering efficiency.Loading needs to use multiple stage bulldozer and two conveyors to transmit guarantee efficiency of loading simultaneously, the rate of loading can reach 1600-2000 ton/hour.In shipment process, the bell mouth of entering building stones needs often to clear up, ensure ship-loading operation continue carry out.
Stone dumper 1 adopts two cover DGPS marine positioning systems, before step S1, position on pipeline route according to the coordinate that before jackstone, accurately route survey is determined, start ultra-short baseline (USBL) navigation system simultaneously and carry out Underwater Navigation, and start Doppler log calibration navigation system, after obtaining precise information, stone dumper 1 departs from the installation that pipeline route about 150m safe distance carries out subsequent step S2, S3 falling rocks pipe etc.
S2, falling rocks sniffer 2 is arranged on the first end of telescopic first falling rocks pipe 3, the first falling rocks pipe 3 with falling rocks sniffer 2 is put into water.
First falling rocks pipe 3 enters in water in vertical mode by the moon pool of stone dumper.
Wherein, falling rocks sniffer 2 comprise body 21, to be arranged in the middle part of body 21 and the center-aisle 22 of through body 21 upper and lower side, be arranged on body 21 relatively both sides telescopic manipulator 23, be arranged on propulsive mechanism in body 21 and detection system (not shown).Detection system is used for location and gathers pipeline 10 relevant information, and the data processing centre information of collection is sent to by umbilical cables on stone dumper, data processing centre, by the structure in data processing modeling display pipeline 10 and seabed, realizes the monitoring etc. in real time to jackstone situation.
Propulsive mechanism comprises several propeller 24 laying respectively at several sides of body 21, thus falling rocks sniffer 2 can be driven mobile to several different directions (all around).
Detection system comprises multi-beam echo sounding instrument (MBM) and terrain data survey meter (DTM), for detecting pipeline 10 and submarine geomorphy information, and the information detected is sent to operating platform.Multi-beam echo sounding instrument and terrain data survey meter are arranged on manipulator 23.
Understandably, detection system also comprise in navigator, depth-sounder, altimeter, thermohaline deep investigation instrument (CTD), underwater camera device, underwater illuminating device and scanning sensor one or more, one or more in above-mentioned are arranged on body 21.
The first end of the first falling rocks pipe 3 is located in the center-aisle 22 of falling rocks sniffer 2; As shown in fig. 1, the first end of the first falling rocks pipe 3 is through falling rocks sniffer 22, and building stones fall on pipeline 10 by the outlet of this first end.First falling rocks pipe 3 preferably arranges one, can control jackstone height by flexible.
Particularly, as shown in Figure 4, the first falling rocks pipe 3 comprises the first body 31 and is axially movably set in the second body 32 on the first body 31 along the first body 31, and falling rocks sniffer 2 is arranged on the second body 32.Second body 32 can drive falling rocks sniffer 2 to move up and down by moving axially along the first body 31.
S3, on the second end of the first falling rocks pipe 3, connect several second falling rocks pipe 4 and side the 3rd falling rocks pipe 5 with inlet opening 51 successively, until above the pipeline 10 falling rocks sniffer 2 being dropped to seabed.
First falling rocks pipe 3, second falling rocks pipe 4 and the 3rd falling rocks pipe 5 are communicated with the falling rocks pipeline forming flexibility successively, fall on pipeline 10 for building stones.3rd falling rocks pipe 5 is positioned at the upper end of falling rocks pipeline, connects stone dumper.3rd falling rocks pipe 5 goes out the import of interruption-forming falling rocks pipeline away from one end of the second falling rocks pipe 4, and building stones enter falling rocks pipeline from this import; The first end of the first falling rocks pipe 3 goes out the outlet of interruption-forming falling rocks pipeline, for building stones by leaving falling rocks pipeline.
Preferably, the 3rd falling rocks pipe 5 arranges one; Second falling rocks pipe 4 quantity increases and decreases according to the depth of water.
As shown in Figure 5,6, the second falling rocks pipe 4 comprises body 41, and the two ends of body 41 are respectively equipped with the connecting portion matched, by connecting portion realize the second adjacent falling rocks pipe 41 connection or and the first falling rocks pipe 3, the 3rd falling rocks pipe 5 connection.3rd falling rocks pipe 5 comprises body 52, and inlet opening 51 is opened on body 52.Inlet opening 51 is provided with multiple, controls by inlet opening 51 the seawater amount entering falling rocks pipeline, and then controls the impact velocity that building stones leave falling rocks pipeline.Control in proper range by impact velocity building stones being left falling rocks pipeline, the impact velocity avoiding building stones to fall is excessive causes damage to pipeline 10.
S4, stone dumper 1 enter treats jackstone region, and falling rocks sniffer 2 guides falling rocks pipeline to move above the route of pipeline 10, and building stones are fallen on pipeline 10 by falling rocks pipeline from stone dumper 1, forms the stone layer 60 covered by pipeline 10.
Propulsive mechanism work can be ordered about falling rocks sniffer 2 and move to different directions, drives the outlet of falling rocks pipeline to move above pipeline 10.Particularly, propulsive mechanism orders about falling rocks sniffer 2 by propeller 24 and moves above pipeline 10, and logical the rotation forward or backwards of the screw of propeller 24 makes falling rocks sniffer 2 can move to contrary two directions.Falling rocks sniffer 2 realizes moving by a small margin above pipeline 10 by the propelling of propeller 24, drives falling rocks pipeline to swing in suitable angle relative to stone dumper 1, to realize accurate jackstone.
By falling rocks pipeline jackstone above pipeline 10, ensure pipeline 10 stability, restriction conduit protuberance, suppress pipeline 10 thermal expansion and filling pipeline 10 suspended span.Pipeline 10 covers by stone layer 60 that building stones form domatic completely, as shown in Figure 2, makes pipeline 10 can resist the impact of seabed underflow, keeps stable for a long time.
In this step S4, stone layer 60 is protection dam structure in jackstone, and its cross section slope ratio is not less than 1:2.5; The thickness of stone layer 60 is not less than 0.5m; The end face width of stone layer 60 is not less than 1m.Can basis.Above-mentioned each parameter can according to changes such as the stability needs of underwater structure, underwater environment factor, pipeline type, performances.
The material of building stones is selected according to pipeline, as can be granite etc.For the control that building stones particle diameter is selected, the calculating of thermal expansion protuberance and the test of land simulation jackstone has been suppressed to determine the size of building stones particle diameter by stability analysis.
In this step S4, the first falling rocks pipe 3 is in preset height by the height of outlet above pipeline 10 of extension and contraction control falling rocks pipeline; Preset height is 0.3-1.5m.Also falling rocks sniffer 2 is driven to move up and down while first falling rocks pipe 3 is flexible.The manipulator 23 of falling rocks sniffer 2 launches and parallels with the route direction of pipeline 10, thus multi-beam echo sounding instrument on two manipulators and terrain data survey meter detect the pipeline 10 of the pipeline 10 after covering stone layer 60 and seabed and stone layer to be covered 60 and seabed respectively.
In jackstone process, by the detection system on falling rocks sniffer 2, can information gathering be carried out in real time and be sent to operating platform, realize the monitoring of operating personnel to jackstone situation.Such as, in jackstone process, both sides on corresponding pipeline 10 bearing of trend of manipulator 23 difference of body 21 both sides, respectively pipeline 10 both sides are detected by the multi-beam echo sounding instrument on manipulator 23 and terrain data survey meter, and the information detected is sent to operating platform, thus operating personnel monitors the both sides before and after pipeline 10 jackstone, and according to circumstances can take corresponding measure.
As the selective embodiment of one, layering jackstone can be adopted to be covered by pipeline 10.
Particularly, in step sl, building stones comprise the first building stones and the second building stones, and the particle diameter of the second building stones is greater than the particle diameter of the first building stones.Wherein, the particle diameter of the first building stones is 10-90mm; The particle diameter of the second building stones is 60-200mm; The concrete particle diameter of above-mentioned building stones can be determined according to results such as pipeline 10 stability and impact tests.
Correspondingly, step S4 comprises:
S4-1, the first building stones are fallen on pipeline 10 by falling rocks pipeline, form the first stone layer 61 covering pipeline, as shown in Figure 3.The particle diameter of the first building stones is less, covers on pipeline 10 and sea bed 70, and the suspended span space between filling pipeline 10 and sea bed 70.
S4-2, the second building stones to be fallen on the first stone layer 61 by falling rocks pipeline, form the second stone layer 62, as shown in Figure 3.Second building stones particle diameter is comparatively large, covers on the first stone layer 61, can not impact damage to pipeline 10, also Absorbable organic halogens first stone layer 61.
In actual job, after jackstone pipe string 10 length 200-300m, jackstone is stopped by step S4, investigate by the pipeline 10 of the detection system on falling rocks sniffer 2 to jackstone, according to after survey data Treatment Analysis, again jackstone is carried out, the operation of qualified rear this section of end to the region that jackstone does not reach designing requirement.Wherein, put section when the actual throwing of stone layer 60 and all cover default throwing and put section, be then considered as jackstone qualified.As shown in Figure 7, wherein a, b, c, d line be respectively that section is put in the throwing that the first stone layer 61 presets, the first stone layer 61 reality throw put section, the second stone layer 62 is preset, and section is put in throwing, the second stone layer 62 reality is thrown and put section.In two-layer building stones jackstone process, after the first stone layer 61 jackstone is formed, it is qualified first to check whether, carries out the jackstone of the second stone layer 62 after qualified again, can improve overall jackstone efficiency.
Aforesaid operations is repeated, until by till treating that the pipeline 10 in jackstone region covers upper stone layer 60 at next section.
With reference to figure 1,2 and Fig. 4-6, the deep water jackstone equipment of one embodiment of the invention, carries out jackstone for connecting stone dumper 1, and above-mentioned deep water jackstone method can adopt this deep water jackstone equipment to realize.
This deep water jackstone equipment can comprise falling rocks sniffer 2, telescopic first falling rocks pipe 3, several second falling rocks pipe 4 and the 3rd falling rocks pipe 5.First falling rocks pipe 3, second falling rocks pipe 4 and the 3rd falling rocks pipe 5 are in turn connected to form and fall to falling rocks pipeline on submerged pipeline 10 for building stones; Falling rocks sniffer 2 is arranged on the first end of the first falling rocks pipe 3 away from the second falling rocks pipe 4.Falling rocks pipeline entirety, in flexible, can swing within the specific limits.Usually, the first falling rocks pipe 3, second falling rocks pipe 4 and the 3rd falling rocks pipe 5 adopt uniform length, as 8m, 12m etc., and convenient transhipment.
Wherein, falling rocks sniffer 2 comprise body 21, to be arranged in the middle part of body 21 and the center-aisle 22 of through body 21 upper and lower side, be arranged on body 21 relatively both sides telescopic manipulator 23, be arranged on propulsive mechanism in body 21 and detection system.Detection system is used for location and gathers pipeline 10 relevant information, and the information of collection is sent to operating platform, realizes the monitoring etc. in real time to jackstone situation.
Understandably, body 21 can comprise framework and provide the dynamical system of power for body.Center-aisle 22 is positioned at the medium position of framework; Manipulator 23 is arranged on the relative both sides of framework, is deployablely stretched out framework by flexible or shrinks back in framework.
Propulsive mechanism comprises several propeller 24 laying respectively at several sides of body 21, thus falling rocks sniffer 2 can be driven mobile to several direction (all around).
Detection system comprises multi-beam echo sounding instrument (MBM) and terrain data survey meter (DTM), for detecting pipeline 10 and submarine geomorphy information, and the information detected is sent to operating platform.Multi-beam echo sounding instrument and terrain data survey meter are arranged on manipulator 23.
Understandably, detection system also comprise in navigator, depth-sounder, altimeter, thermohaline deep investigation instrument (CTD), underwater camera device, underwater illuminating device and scanning sensor one or more, one or more in above-mentioned are arranged on body 21.
The first end of the first falling rocks pipe 3 is located in the center-aisle 22 of falling rocks sniffer 2; As shown in Figure 1, the first end of the first falling rocks pipe 3 is through falling rocks sniffer 2, and building stones fall on pipeline 10 by the outlet of this first end.First falling rocks pipe 3 preferably arranges one, can control jackstone height by flexible.
Particularly, the first falling rocks pipe 3 comprises the first body 31 and is axially movably set in the second body 32 on the first body 31 along the first body 31, and falling rocks sniffer 2 is arranged on the second body 32.Second body 32 can drive falling rocks sniffer 2 to move up and down by moving axially along the first body 31.
Second falling rocks pipe 4 comprises body 41, and the two ends of body 41 are respectively equipped with the connecting portion matched, by connecting portion realize the second adjacent falling rocks pipe 41 connection or and the first falling rocks pipe 3, the 3rd falling rocks pipe 5 connection.3rd falling rocks pipe 5 comprises body 52, and inlet opening 51 is opened on body 52.Inlet opening 51 is provided with multiple, controls by inlet opening 51 the seawater amount entering falling rocks pipeline, and then controls the impact velocity that building stones leave falling rocks pipeline.Control in proper range by impact velocity building stones being left falling rocks pipeline, the impact velocity avoiding building stones to fall is excessive causes damage to pipeline 10.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize manual of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. a deep water jackstone method, is characterized in that, comprises the following steps:
Building stones are transported to and treat jackstone areas adjacent by S1, stone dumper;
S2, falling rocks sniffer is arranged on the first end of telescopic first falling rocks pipe, the described first falling rocks pipe with described falling rocks sniffer is put into water;
S3, on the second end of described first falling rocks pipe, connect several second falling rocks pipe and side the 3rd falling rocks pipe with inlet opening successively, until drop to above the pipeline in seabed by described falling rocks sniffer;
Described first falling rocks pipe, the second falling rocks pipe and the 3rd falling rocks pipe are communicated with successively to be formed and fall to falling rocks pipeline on described pipeline for building stones, and described 3rd falling rocks pipe is positioned at the upper end of described falling rocks pipeline;
S4, described stone dumper enter treats jackstone region, described falling rocks sniffer guides described falling rocks pipeline to move above the route of described pipeline, building stones are fallen on described pipeline by described falling rocks pipeline from described stone dumper, form the stone layer covered by described pipeline.
2. deep water jackstone method according to claim 1, is characterized in that, in described step S4, the cross section slope ratio of described stone layer is not less than 1:2.5; The thickness of described stone layer is not less than 0.5m; The end face width of described stone layer is not less than 1m.
3. deep water jackstone method according to claim 1, is characterized in that, in described step S4, described first falling rocks pipe is in preset height by the height of outlet above described pipeline of falling rocks pipeline described in extension and contraction control; Described preset height is 0.3-1.5m.
4. deep water jackstone method according to claim 1, is characterized in that, in described step S1, described building stones comprise the first building stones and the second building stones, and the particle diameter of described second building stones is greater than the particle diameter of described first building stones;
Described step S4 comprises:
S4-1, described first building stones are fallen on described pipeline by described falling rocks pipeline, form the first stone layer covering described pipeline;
S4-2, described second building stones to be fallen on described first stone layer by described falling rocks pipeline, form the second stone layer.
5. deep water jackstone method according to claim 4, is characterized in that, the particle diameter of described first building stones is 10-90mm; The particle diameter of described second building stones is 60-200mm.
6. the deep water jackstone method according to any one of claim 1-5, it is characterized in that, in described step S2, described falling rocks sniffer comprises body, to be arranged in the middle part of described body and the center-aisle of through described body upper and lower side, be arranged on described body relative to both sides telescopic manipulator, be arranged on propulsive mechanism and the location in described body and gather described pipeline relevant information and the information of collection be sent to the data processing centre on described stone dumper by umbilical cables; The first end of described first falling rocks pipe is located in described center-aisle;
In described step S4, the manipulator of described falling rocks sniffer launches and parallels with the route direction of described pipeline; Described propulsive mechanism orders about described falling rocks sniffer and moves to different directions, drives the outlet of described falling rocks pipeline to move above described pipeline.
7. deep water jackstone method according to claim 6, is characterized in that, described propulsive mechanism comprises several propeller laying respectively at several sides of described body; In described step S4, described propulsive mechanism orders about described falling rocks sniffer by described propeller and moves above described pipeline;
Described detection system comprises and is arranged on multi-beam echo sounding instrument on described manipulator and terrain data survey meter; In described step S4, the multi-beam echo sounding instrument on two described manipulators and terrain data survey meter detect the described pipeline and seabed that cover the described pipeline after described stone layer and seabed and stone layer to be covered respectively;
Described detection system also comprise in navigator, depth-sounder, altimeter, thermohaline deep investigation instrument, underwater camera device, underwater illuminating device and scanning sensor one or more, one or more in above-mentioned are arranged on described body.
8. a deep water jackstone equipment, jackstone is carried out for connecting stone dumper, it is characterized in that, comprise falling rocks sniffer, telescopic first falling rocks pipe, several second falling rocks pipe and the 3rd falling rocks pipe, described first falling rocks pipe, the second falling rocks pipe and the 3rd falling rocks pipe are in turn connected to form and fall to falling rocks pipeline on submerged pipeline for building stones; The side of described 3rd falling rocks pipe is provided with several inlet opening; Described falling rocks sniffer is arranged on the first end of described first falling rocks pipe away from described second falling rocks pipe.
9. deep water jackstone equipment according to claim 8, it is characterized in that, described falling rocks sniffer comprises body, to be arranged in the middle part of described body and the center-aisle of through described body upper and lower side, be arranged on described body relative to both sides telescopic manipulator, be arranged on propulsive mechanism and the location in described body and gather described pipeline relevant information and the information of collection be sent to the data processing centre on described stone dumper by umbilical cables; The first end of described first falling rocks pipe is located in described center-aisle.
10. deep water jackstone equipment according to claim 9, is characterized in that, described propulsive mechanism comprises several propeller laying respectively at several sides of described body;
Described detection system comprises and is arranged on multi-beam echo sounding instrument on described manipulator and terrain data survey meter;
Described detection system also comprise in navigator, depth-sounder, altimeter, thermohaline deep investigation instrument, underwater camera device, underwater illuminating device and scanning sensor one or more, one or more in above-mentioned are arranged on described body.
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| CN108570990A (en) * | 2018-04-27 | 2018-09-25 | 中英海底系统有限公司 | Shallow water ocean bottom cable stone accurately fills device and method |
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| CN117302890A (en) * | 2023-11-29 | 2023-12-29 | 中铁四局集团第二工程有限公司 | Automatic stone throwing control method, device and computer storage medium |
| CN117302890B (en) * | 2023-11-29 | 2024-03-19 | 中铁四局集团有限公司 | Automatic stone throwing control method, device and computer storage medium |
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