CN103557365B - Construction method based on load graded transition protection device for subsea pipeline in shallow sea reclamation area - Google Patents
Construction method based on load graded transition protection device for subsea pipeline in shallow sea reclamation area Download PDFInfo
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- CN103557365B CN103557365B CN201310578341.2A CN201310578341A CN103557365B CN 103557365 B CN103557365 B CN 103557365B CN 201310578341 A CN201310578341 A CN 201310578341A CN 103557365 B CN103557365 B CN 103557365B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/12—Laying or reclaiming pipes on or under water
- F16L1/20—Accessories therefor, e.g. floats, weights
- F16L1/202—Accessories therefor, e.g. floats, weights fixed on or to vessels
- F16L1/207—Pipe handling apparatus
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Underground Or Underwater Handling Of Building Materials (AREA)
Abstract
The invention relates to a construction method based on a load graded transition protection device for a subsea pipeline in a shallow sea reclamation area. The method comprises steps as follows: (1), construction preparation is made; (2), barge positioning is performed; (3), an excavator and a barge are used for limiting, vertical piles are arranged in place row by row in the axis direction of a pipeline by shifting anchors; (4), after the barge is stationed in place, a batter pile support sleeve mounted on a board is used for limiting, and the piles are sunk in place in the batter pile support sleeve direction through the excavator; (5), a stereoscopic truss with a spatial structure is distributed on every two adjacent vertical piles; (6), pile heads are levelled; (7), horizontal beams and longitudinal beams are mounted; (8), a cover plate is laid; (9), and the barge is moved away, and flow construction is performed. With the adoption of the method, a large amount of completely protected and invested manpower and material resources are reduced, waste of construction machinery and energy is reduced, and the structure is environment-friendly and economical; the construction is convenient and fast; the top surface of a protection structure is located in a tide intermediate zone, and underwater construction is avoided to the greatest extent; and all upper structures adopt monomer assembly, multiple cross sections form flow construction, and the tide interval time can be fully utilized.
Description
Technical field
The invention belongs to submerged pipeline resist technology field, particularly relate to a kind of method of construction based on submarine pipeline in shallow sea reclamation area load classification over current protection device.
Background technique
Along with the progress of national economy, reclamation engineering rises gradually in recent years, has huge Social and economic benef@, also can go up peripherally it and the environment of underground causes certain influence simultaneously.Such as in reclaiming land around sea planning, often there will be the situation of some submarine facilities of planning region overlay, especially run into the analogues such as benthal oil-gas pipeline.
Submerged pipeline carries the important use of the economic people's livelihood of relation usually, therefore must carry out special protection to it in reclaiming land around sea construction, industrial accident not occur to guarantee to meet pipeline safety needs.Generally the thick mud layer of about 1m to 2m is about covered above this type of pipeline.The load that the mud layer that loads in dredge fill process produces causes construction area gut line to bear pressure to be greater than construction area external pipeline and to bear pressure, and the increase of Local Loads causes the pipeline of infall to produce deflection deformation, produce in the duct additional to draw, pressure stress.If when the combination of ducted additional stress and pipeline original stress (as the stress that temperature and interior pressure cause) in operational conditions exceedes the yield stress of pipe material, pipeline will destroy.
For addressing this problem, the at present general method of construction adopting the filling bag bedding of Extended chemotherapy to add a cover concrete cover, somewhat expensive and efficiency of construction is lower.The method of construction of the timber joining cover plate that the present invention adopts, can effectively solve this construction difficult problem, improves efficiency of construction and greatly reduces construction cost.
Summary of the invention
The present invention provides a kind of construction convenient for solving in known technology the technical problem that exists, and pile sinking precision is high, to reach the method for construction based on submarine pipeline in shallow sea reclamation area load classification over current protection device of the effect of protection submerged pipeline.
The technological scheme that the present invention takes for the technical problem existed in solution known technology is:
Based on a method of construction for submarine pipeline in shallow sea reclamation area load classification over current protection device,
(1), preparation of construction;
(2), ship's fix:
A, adopt magnetic to visit instrument according to pipeline situation plan to detect the actual trend of pipeline, and foundation detection data rendering pipeline exact position figure, the background paper figure of assisted GPS location system is made with this;
B, according to above-mentioned background paper figure stay ship positionning, side, shipping work face ship side peg position setting also imports above-mentioned GPS navigation system;
After c, ship's fix, felt in conjunction with slurry pump diving by diver, artificial mark post of inserting is visited again, and identifies pipeline position on the spot, adopts four positioning of anchors according to mark perpendicular to pipeline axis direction;
(3), soldier piles pile sinking: boats and ships are stayed behind position, propose stake, utilize the limit stoper of ship side to carry out spacing by excavator, and by move anchor along pipeline axis direction by row pile sinking enter position;
(4), taper pile pile sinking: boats and ships propose stake by excavator after staying position, utilize the taper pile bracket sleeve tube be arranged on ship side to carry out spacing, and enter position by excavator along taper pile bracket sleeve tube direction pile sinking;
(5), truss installa-tion: after pile sinking enters position, adjacent soldier piles are laid the space truss of spatial structure;
(6), pile crown is levelling;
(7), transverse and longitudinal beam is installed: first install crossbeam, crossbeam adopts fastening piece to be arranged on soldier piles top, then on crossbeam, adopt fastening piece to install longeron;
(8), lay cover plate, after installing transverse and longitudinal beam, lay cover plate at longeron upper surface by fastening piece;
(9) ship construction flow process, is moved.
The advantage that the present invention has and good effect are: the present invention takes safeguard structure to make the load on pipeline top be step-like classification transition; thus to make outside construction area inside former surface load and construction area completely that between hydraulic reclamation load, pipeline institute bearing load can even transition; effectively guarantee that pipeline large bending deflection breakthrough ultimate stress does not occur and causes pipeline damage; the method had both decreased employing and had protected input a large amount of human and material resources completely; additionally reducing the waste of its construction plant and the energy, is a kind of not only environmental protection but also economic structure.The present invention constructs convenient, and operator guards end face is in intertidal zone, avoids underwater construction as far as possible, all superstructure monomer assemblings, and multibreak forms continuous productive process, can make full use of between tide the time; Ask low to labor and materials are confidential, material channel is wide, and ship machine is slightly transformed and just can be constructed, setup time before minimizing work, workable.Economic benefit is mainly manifested in project organization and achieves in easy process conditions, under workable method of construction, submerged pipeline is formed to the protection of effective and safe.
Accompanying drawing explanation
The load assignment schematic diagram of Tu1Shi hydraulic reclamation district gut line load classification transition
Fig. 2 is the structural representation of first order classification changeover portion;
Fig. 3 is I-I sectional drawing of Fig. 2;
Fig. 4 is boats and ships construction network for location;
Fig. 5 is soldier piles piling construction schematic diagram;
Fig. 6 is K direction view in Fig. 5;
Fig. 7 is taper pile piling construction schematic diagram;
Fig. 8 is truss construction schematic diagram;
Fig. 9 is transverse and longitudinal beam scheme of installation;
Figure 10 is for installing fixing wooden cover plate schematic diagram;
Figure 11 is method of construction flow chart.
In figure: 1, soldier piles; 2, taper pile; 3, crossbeam; 4, longeron; 5, cover plate; 6, truss; 7, diagonal brace; 8, submerged pipeline; 9, rigid body; 10, fastening piece; 11, dredger; 12, barge; 13, limit stoper; 13-1, position-limited rack; 13-2, guiding groove; 14, taper pile bracket sleeve tube device; 14-1, triangle support frame; 14-2, axle sleeve; 14-3, turning axle; 14-4, polygonal spindle nose; 14-5, bracket sleeve tube; 14-6, lock screw.
Embodiment
For summary of the invention of the present invention, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1 to Fig. 3, a kind of submarine pipeline protection device in shallow sea reclamation area, mainly comprise soldier piles 1, taper pile 2, crossbeam 3, longeron 4 and cover plate 5, wherein soldier piles 1 are distributed in the both sides of the submerged pipeline 8 in hydraulic reclamation district.Be starting point with firm body 9 in hydraulic reclamation district be cascade layout along pipeline direction, and be increase step by step, for ease of illustrating, specific to close rigid body 9 is first order classification changeover portion, and the number of step is carried out rationalization according to the length of actual classification changeover portion and selected; Outermost soldier piles 1 are provided with group of taper pile 2 at a certain distance; Crossbeam 3 is equipped with by fastening piece 10 in the upper top of soldier piles 1 vertical submerged pipeline 8 direction; Longeron 4 is equipped with along submerged pipeline 8 direction by fastening piece 10 at described crossbeam 3 upper surface; Cover plate 5 is equipped with by fastening piece 10 at longeron 4 upper surface of each ladder surface.Described fastening piece 10 adopts harrow nail, self tapping screw or binding structural member.Truss 6 is installed with by fastening piece 10 between described adjacent soldier piles 1.
An above-mentioned method of construction based on submarine pipeline in shallow sea reclamation area load classification over current protection device, refers to Figure 11,
(1), preparation of construction; A, ship machine are marched into the arena: workboat machine is marched into the arena, and auxiliary barge and excavator put in place, mainly comprise flat top barge, transportation of materials boats and ships and excavator.B, material prepare: mainly comprise timber, wooden cover plate, truss, fastening piece etc.C, personnel are in place: all kinds of workmen comprises administrative staff, ship machine operator, safety officer, diver, workman etc.D, work surface are laid: comprise and set up and verify surveying control network, carry out repetition measurement before work to Specific construction region, confirmation pipeline position etc.
(2), ship's fix:
A, adopt magnetic to visit instrument according to pipeline situation plan to detect submerged pipeline 8 reality trend, and draw submerged pipeline 8 exact position figure according to detection data, make the background paper of assisted GPS location system with this;
B, according to above-mentioned background paper figure stay ship positionning, consult Fig. 4, side, shipping work face ship side peg position setting also imports above-mentioned GPS navigation system;
After c, ship's fix, felt in conjunction with slurry pump diving by diver, artificial mark post of inserting is visited again, and identifies submerged pipeline 8 position on the spot, adopts four positioning of anchors according to mark perpendicular to submerged pipeline 8 axial direction; Adopt accommodation to move towards localized reason perpendicular to submerged pipeline 8 to be: avoid construction anchor hawser and completed between timber disturbing, avoid moving in ship process and destroy completing stake.
Item is should be noted that: note when casting anchor, away from pipeline position, guaranteeing pipeline safety in this step.
(3), soldier piles pile sinking: refer to Fig. 5 and Fig. 6, boats and ships are stayed behind position, propose stake, utilize the limit stoper of ship side to carry out spacing by excavator, and by move anchor along pipeline axis direction by row pile sinking enter position; Described limit stoper comprises the three-dimensional constraint position-limited rack 13-1 that fixed installation is gone up on the quarter, the below fixed installation guiding groove 13-2 of described position-limited rack.
(4), taper pile pile sinking: refer to Fig. 7, boats and ships propose stake by excavator after staying position, utilize the taper pile bracket sleeve tube device 14 be arranged on ship side to carry out spacing, and enter position by excavator along taper pile bracket sleeve tube direction pile sinking; This device described comprises two groups of parallel up and down triangle support frame 14-1, the rear end often organizing supporting frame all fixedly mounts goes up on the quarter, at the top of triangle support frame, axle sleeve 14-2 is all installed, turning axle 14-3 is coated with between upper and lower two axle sleeves, the upper-end surface of Upper shaft sleeve is stretched out in the upper end portion of described turning axle, be provided with polygonal spindle nose 14-4 at extension, described spindle nose is fitted with dismountable spanner; The bracket sleeve tube 14-5 of the neutral position fixed installation inclination of described turning axle, described axle sleeve is coated with lock screw 14-6, wherein said bracket sleeve tube is split structure, and two split bodies are articulated as one by articulated elements, and described two split bodies are also provided with the latch assembly that cooperatively interacts.
(5), truss installa-tion: after pile sinking enters position, adjacent soldier piles are laid the space truss of spatial structure; Use Barge Self-Propelled to transport short wood, by manually carrying out colligation truss, as shown in Figure 8, stablizing of operator guards, single horizontal plane truss role is not enough, need make space multistory truss.After proposing stake and entering position and before pile sinking puts in place, pile crown has penetrated subscribes position mud layer, but the pile sinking that also do not exert a force, now fix truss quarter butt at stake waist rational position and get a foothold, time fixing, another position that will connect is pointed in quarter butt direction.
In pile driving process, first carry out the colligation of truss lower end, during colligation, make truss direction point to adjacent timber.After pile sinking puts in place, then by truss upper end and adjacent timber colligation.
(6), pile crown is levelling; Truss is built one-shot job platform, manually makes with a chainsaw, the equipment and materials such as chock is levelling to stake top.
(7), transverse and longitudinal beam is installed: refer to Fig. 9, first install crossbeam, crossbeam adopts fastening piece to be arranged on soldier piles top, then on crossbeam, adopt fastening piece to install longeron; Crossbeam and soldier piles adopt harrow nail to be connected, and adopt clamping bolt to be connected between crossbeam with longeron;
(8), lay cover plate, refer to Figure 10, after installing transverse and longitudinal beam, lay cover plate at longeron upper surface by clamping bolt;
(9) ship construction flow process, is moved.After often having set a campshed, move ship and construct to next row, when possessing transverse and longitudinal beam work surface, starting beam and cover plate construction, making each inter process form overlap joint continuous productive process.
The present invention takes safeguard structure to make the load on pipeline top be step-like classification transition; thus to make outside construction area inside former surface load and construction area completely that between hydraulic reclamation load, pipeline institute bearing load can even transition; effectively guarantee that pipeline large bending deflection breakthrough ultimate stress does not occur and causes pipeline damage; namely the method decreases employing and protects input a large amount of human and material resources completely; additionally reducing the waste of its construction plant and the energy, is a kind of not only environmental protection but also economic structure.The present invention constructs convenient, and operator guards end face is in intertidal zone, avoids underwater construction as far as possible, all superstructure monomer assemblings, and multibreak forms continuous productive process, can make full use of between tide the time; Ask low to labor and materials are confidential, material channel is wide, and ship machine is slightly transformed and just can be constructed, setup time before minimizing work, workable.Economic benefit is mainly manifested in project organization and achieves in easy process conditions, under workable method of construction, submerged pipeline is formed to the protection of effective and safe.
The above is only to preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, every according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent variations and modification, all belong in the scope of technical solution of the present invention.
Claims (1)
1., based on a method of construction for submarine pipeline in shallow sea reclamation area load classification over current protection device, it is characterized in that:
(1), preparation of construction;
(2), ship's fix:
A, adopt magnetic to visit instrument according to pipeline situation plan to detect the actual trend of pipeline, and foundation detection data rendering pipeline exact position figure, the background paper figure of assisted GPS location system is made with this;
B, according to above-mentioned background paper figure stay ship positionning, side, shipping work face ship side peg position setting also imports above-mentioned GPS navigation system;
After c, ship's fix, felt in conjunction with slurry pump diving by diver, artificial mark post of inserting is visited again, and identifies pipeline position on the spot, adopts four positioning of anchors according to mark perpendicular to pipeline axis direction;
(3), soldier piles pile sinking: boats and ships are stayed behind position, propose stake, utilize the limit stoper of ship side to carry out spacing by excavator, and by move anchor along pipeline axis direction by row pile sinking enter position;
(4), taper pile pile sinking: boats and ships propose stake by excavator after staying position, utilize the taper pile bracket sleeve tube be arranged on ship side to carry out spacing, and enter position by excavator along taper pile bracket sleeve tube direction pile sinking;
(5), truss installa-tion: after pile sinking enters position, adjacent soldier piles are laid the space truss of spatial structure;
(6), pile crown is levelling;
(7), transverse and longitudinal beam is installed: first install crossbeam, crossbeam adopts fastening piece to be arranged on soldier piles top, then on crossbeam, adopt fastening piece to install longeron;
(8), lay cover plate, after installing transverse and longitudinal beam, lay cover plate at longeron upper surface by fastening piece;
(9) ship construction flow process, is moved.
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| CN201310578341.2A CN103557365B (en) | 2013-11-15 | 2013-11-15 | Construction method based on load graded transition protection device for subsea pipeline in shallow sea reclamation area |
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| CN103557365B true CN103557365B (en) | 2015-07-01 |
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Citations (6)
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|---|---|---|---|---|
| DE19522014A1 (en) * | 1995-06-21 | 1997-01-02 | Huesker Synthetic Gmbh & Co | Method of securing pipelines against vertical movements |
| RU2162187C1 (en) * | 2000-03-29 | 2001-01-20 | Мухаметдинов Харис Касьянович | Shock-proof protection device for different surfaces, particularly, pipelines |
| CN101982689A (en) * | 2010-09-30 | 2011-03-02 | 中国海洋大学 | Submarine pipeline protection method and submarine pipeline |
| CN202674530U (en) * | 2012-06-07 | 2013-01-16 | 中国海洋石油总公司 | Cross protection device for seabed pipeline |
| CN102938548A (en) * | 2012-11-23 | 2013-02-20 | 上海市基础工程有限公司 | Platform protection device for submarine cable |
| CN103236660A (en) * | 2013-03-22 | 2013-08-07 | 广东明阳风电产业集团有限公司 | Submarine cable laying and protection method and guiding device for offshore wind turbine foundation |
-
2013
- 2013-11-15 CN CN201310578341.2A patent/CN103557365B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19522014A1 (en) * | 1995-06-21 | 1997-01-02 | Huesker Synthetic Gmbh & Co | Method of securing pipelines against vertical movements |
| RU2162187C1 (en) * | 2000-03-29 | 2001-01-20 | Мухаметдинов Харис Касьянович | Shock-proof protection device for different surfaces, particularly, pipelines |
| CN101982689A (en) * | 2010-09-30 | 2011-03-02 | 中国海洋大学 | Submarine pipeline protection method and submarine pipeline |
| CN202674530U (en) * | 2012-06-07 | 2013-01-16 | 中国海洋石油总公司 | Cross protection device for seabed pipeline |
| CN102938548A (en) * | 2012-11-23 | 2013-02-20 | 上海市基础工程有限公司 | Platform protection device for submarine cable |
| CN103236660A (en) * | 2013-03-22 | 2013-08-07 | 广东明阳风电产业集团有限公司 | Submarine cable laying and protection method and guiding device for offshore wind turbine foundation |
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