CN109610462B - The grouting equipment for washing away the slip casting means of defence of disaster for submarine pipeline and its using - Google Patents
The grouting equipment for washing away the slip casting means of defence of disaster for submarine pipeline and its using Download PDFInfo
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- CN109610462B CN109610462B CN201811265259.3A CN201811265259A CN109610462B CN 109610462 B CN109610462 B CN 109610462B CN 201811265259 A CN201811265259 A CN 201811265259A CN 109610462 B CN109610462 B CN 109610462B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/06—Placing concrete under water
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Abstract
The invention discloses the grouting equipments for washing away the slip casting means of defence of disaster for submarine pipeline and its using, and are related to field of ocean engineering, grouting equipment specifically includes that Grouting Pipe and driving device of injected hole etc. is distributed in slip casting main body.This method step are as follows: by grouting equipment frame in the surface of submarine pipeline, the Grouting Pipe of two sides is symmetrically inserted into the ocean soil body of submarine pipeline two sides, it gradually rises the position of injected hole and reduces grouting pressure, delamination pour slurry is carried out to the soil body around submarine pipeline, Grouting Pipe full retraction is extracted later, grouting equipment proceeds to next section to slip casting region, until slip casting terminates to be formed one section of trapezoidal diaphragm wall of class as grouting and reinforcing area along duct orientation.The beneficial effects of the invention are as follows; slurries are uniformly injected into the soil body of submarine pipeline two sides by grouting process; the bearing capacity of the pipeline soil body can be effectively improved, distinguished and admirable and wave souring is weakened, is played an important role in terms of reinforcing and protecting submarine pipeline.
Description
Technical field
The present invention relates to field of ocean engineering, especially for submarine pipeline wash away disaster slip casting means of defence and
Its grouting equipment used.
Background technique
Over strait transport channel of the submarine pipeline as resources such as oil gas plays the conveying of national remote energy source and economic development
Important role.It is heavy by own wt after submarine pipeline generally goes through a series of safeguard procedures such as concrete weight, anti-corrosion
Seabed is dropped to, seabed surface is laid on, or excavating pipe trench makes it be embedded in ocean inside soil body certain depth, to ensure oil gas
Transport safely.
However marine environment is complicated, the long term of especially stormy waves and ocean current will cause the pipeline ocean soil body not
It is disconnected to wash away, so that the pipeline for being laid on seabed surface or being embedded in the soil body of ocean is exposed original pipe trench, leads to the seabed being laid with
Pipeline suspended span is aerial.When suspended span reaches a certain level, pipeline loses effective supporting role, because by biggish moment of flexure and work
Firmly destroy；Pipeline vortex-induced vibration caused by hydrodynamic load simultaneously causes the disconnected of pipeline so that fatigue rupture occurs for pipeline
It splits and is revealed with oil gas.Therefore novel, efficient, economic submarine pipeline scour protection technology is developed with important engineer application valence
Value.
Application No. is 201020699450.1 Chinese patent applications to disclose a kind of pipeline under the ocean scour protection
Structure.The protection structure installs base wad and sandbag of jettisoninging composition co-ordinative construction by bionical sea grass to resist souring.But
The bionical sea grass of the ribbon of the protection structure easily lodges under strong flow action, so that choked flow and sedimentation effect are deteriorated, it can
It is poor by property.
Application No. is 201610278503.4 Chinese patent application disclose a kind of submarine pipeline flexible board group wash away it is anti-
Protection unit.The protective device by one tiling submarine pipeline beside sea bed backing plate and be arranged on sea bed backing plate several
Flexible board resists the souring of ocean current.But the protective device needs artificial underwater pile driving, the degree of automation is not high.
Application No. is 201720244206.8 Chinese patent applications to disclose a kind of antiscour suitable for submarine pipeline
Device.The anti-impact brush device reduces punching by sandbag, mesh blanket, water-proof curtain and multiple suspended substances that can be suspended in sea
Brush intensity, siltation of the bed-sit for promoting sea bed nearby to move near submarine pipeline.But there are underwater skills for the anti-impact brush device
Art problem and somewhat expensive, it is difficult to be applied to practical.
Other are commonly underwater dumped rockfill for the safeguard procedures that submarine pipeline washes away disaster, sand hill heap is built etc., but due to this
The presence of a little solid bodies, secondary wash away easily occur causes submarine pipeline secondary hanging, and deform destruction, practical effect
It is undesirable.
Summary of the invention
The purpose of the present invention is by grouting equipment to shallow embedding in the submarine pipeline of sea bed by washing away certain more serious
Segment pipe carries out slip casting protection, and one section of diaphragm wall is finally formed around the segment pipe as grouting and reinforcing area, thus effectively
Protection submarine pipeline simultaneously prolongs the service life, and devises and for submarine pipeline washes away the slip casting means of defence of disaster and its use
Grouting equipment.
Realize above-mentioned purpose the technical scheme is that, a kind of grouting equipment of submarine pipeline, comprising: slip casting master
Body is set to the top of submarine pipeline, is equipped with the driving device for driving its own to move in the slip casting main body；At least two groups note
Slurry pipe, is connect by telescopic extension section with the slip casting main body respectively, and the Grouting Pipe is equipped with the several and slip casting main body
The injected hole of interior slurries connection；Pressure pump is set in the slip casting main body or Grouting Pipe, is flowed out for controlling from injected hole
Slurries radius.
This application provides a kind of preferred grouting equipment, the injected hole in the Grouting Pipe along duct orientation at least
Four column, the diameter of each injected hole are all the same.
This application provides another preferred grouting equipment, the injected hole in the Grouting Pipe along duct orientation at least
There are four column, wherein the diameter of the injected hole of a column from the top down is sequentially increased.
Further, in addition the slip casting bore dia of several column is equal and its slip casting pore diameter size is located therein column maximum directly
Between diameter and minimum diameter.
Further, the injected hole in the Grouting Pipe is equally spaced in the vertical direction.
Further, the driving device is traveling wheel, and the slip casting main body walks in submarine pipeline by driving device
On.
This application provides a kind of slip casting means of defences that disaster is washed away for submarine pipeline, comprising the following steps:
A, the Grouting Pipe of grouting equipment is inserted into the ocean soil body of submarine pipeline two sides, and the slip casting of Grouting Pipe lowermost end
Hole is located at the lower section of submarine pipeline, and grouting equipment starts slip casting, and slurries are from the ocean soil body that injected hole is diffused into surrounding, seabed
The ocean soil body soil body and slurries of pipeline are sufficiently mixed, and form the trapezoidal grouting and reinforcing area of class；
B, during Grouting Pipe moves up, the grouting pressure in grouting equipment is gradually decreased, filling Grouting Pipe is formed
Cavity；
C, Grouting Pipe leaves grouting and reinforcing area.
Further, after the step C, increase step D: Grouting Pipe moves forward along submarine pipeline, repetitive operation step A
To step C.
This application provides another slip casting means of defences that disaster is washed away for submarine pipeline, comprising the following steps:
A, the Grouting Pipe of grouting equipment is inserted into the ocean soil body of submarine pipeline two sides, and the slip casting of Grouting Pipe lowermost end
Hole is located at the lower section of submarine pipeline；
B, grouting equipment starts slip casting, and slurries are diffused into the ocean soil body of surrounding by injected hole, keeps submarine pipeline all
The lowest level soil body and slurries enclosed is sufficiently mixed, and forms grouting and reinforcing area, suspends slip casting；
C, Grouting Pipe moves up, and so that injected hole is located at the n-th layer ocean soil body corresponding to submarine pipeline, while reducing note
The grouting pressure of equipment is starched, slurries diffuse to this layer of ocean soil body by injected hole and are sufficiently mixed therewith, form grouting and reinforcing
Area suspends slip casting；
Wherein, N is from starting counting, every operation step a C, N+1；
D, repeat the above steps C, until the top of grouting and reinforcing area covering submarine pipeline, forms the trapezoidal grouting and reinforcing of class
Area；
E, Grouting Pipe is withdrawn from grouting and reinforcing area.
Further, after the step E, increase step F: Grouting Pipe moves forward along submarine pipeline, repetitive operation step A
To step E.
The main thought of the two methods of the application is the trapezoidal grouting and reinforcing area of class to be formed by grouting equipment, therefore have
There is unicity.
The beneficial effects of the present invention are: only needing to wash away shallow embedding in the submarine pipeline of sea bed certain serious segment pipe
Slip casting protection is carried out, there is the characteristics of easy to operate, save the cost, significant effect；Slurries are uniformly injected into sea by grouting process
In the soil body of bottom pipeline two sides, the bearing capacity of the pipeline soil body can be effectively improved, to reduce distinguished and admirable and wave rush
Brush effect plays an important role in terms of reinforcing and protecting submarine pipeline.
Detailed description of the invention
Fig. 1 is the schematic diagram of the grouting equipment slip casting in the embodiment of the present application 1；
Fig. 2 is the schematic diagram of the grouting equipment slip casting in the embodiment of the present application 2；
The schematic diagram of Fig. 3 Grouting Pipe delamination pour slurry of the embodiment of the present invention；
Fig. 4 is the force analysis figure of submarine pipeline when slip casting of the embodiment of the present invention terminates not washed away；
Fig. 5 is the force analysis figure of submarine pipeline when being washed away after slip casting of the embodiment of the present invention.
In above each figure, 1, slip casting main body；2, Grouting Pipe；21, injected hole.
Specific embodiment
It is of the invention to reach the technical means and efficacy that predetermined goal of the invention is taken further to illustrate, below in conjunction with
Attached drawing and preferred embodiment, to specific embodiment, structure, feature and its effect according to the present invention, detailed description are as follows:
The application protects submarine pipeline using by slip casting, by the carrying energy for improving submarine pipeline surrounding soil
Power, to weaken erosion damage caused by stormy waves and ocean current, submarine pipeline is effectively protected and prolong the service life.
Embodiment 1
A kind of grouting equipment of submarine pipeline, as shown in Figure 1, including slip casting main body 1, at least two groups Grouting Pipe 2 and pressure
Power pump.Wherein, the top of submarine pipeline is arranged in slip casting main body 1, and the driving dress for driving its own to move is equipped in slip casting main body 1
It sets.Here, slip casting main body 1 not only can be mobile in the top of submarine pipeline, but also can move on submarine pipeline, at this point, it can
To be designed to the patterns such as traveling wheel.
Grouting Pipe 2 is arranged in groups, and when in use, at least one group of Grouting Pipe is respectively set in the two sides of submarine pipeline
2, the Grouting Pipe by telescopic extension section with slip casting main body 1 by being connect respectively, to realize Grouting Pipe 2 in the two sides of submarine pipeline
It moves up and down, as long as Grouting Pipe 2 and slip casting main body 1 can be made to generate the model that opposite upper and lower displacement belongs to telescopic extension section
Farmland.
The injected hole 21 that several slurries in slip casting main body 1 are connected to, Grouting Pipe bottom envelope are equipped in Grouting Pipe 2
It closes.The injected hole 21 is used to inject slurry to submarine pipeline and its periphery.21 edge of injected hole in the present embodiment, in Grouting Pipe 2
Duct orientation at least four arrange, the diameter of each injected hole 21 is all the same, and injected hole 21 is only distributed in Grouting Pipe lower end.Pressure
Setting not shown is pumped in slip casting main body 1 or Grouting Pipe 2, for controlling the radius of the slurries flowed out from injected hole 21.Grouting Pipe 2
Slip casting when upper pull out, grouting equipment start slip casting, and slurries are injected around submarine pipeline by the injected hole 21 in Grouting Pipe 2
The soil body in.By pressure pump, so that the radius of the slurries flowed out from injected hole 21 gradually decreases, forms the trapezoidal slip casting of class and add
Gu Qu.
The theoretical basis of the present embodiment is: in order to guarantee that finally formed grouting and reinforcing area section is trapezoidal in class, key exists
It is segmented in Grouting Pipe 2 and shrinks carried out delamination pour slurry process upwards, be less than the distance that slurry is spread in the soil body of upper layer successively
The distance that slurry is spread in the soil body of lower layer, key are to control the grouting pressure of grouting equipment.By Magg formulaKnow that the dilation angle R of slurries and grouting pressure are positively correlated trend, therefore during delamination pour slurry,
Its dependent variable is controlled, the grouting pressure of grouting equipment is successively suitably reduced, the distance that slurry is spread in the soil body of upper layer can be made to be less than
The distance that slurry is spread in the soil body of lower layer finally realizes the grouting and reinforcing area section formed around submarine pipeline in class ladder
Shape.
Embodiment 2
Unlike the first embodiment, in the present embodiment, the injected hole 21 in Grouting Pipe 2 is along duct orientation at least four
Column, wherein the diameter of the injected hole 21 of a column from the top down is sequentially increased, this column injected hole 21 is mainly used for backwards to submarine pipeline
Inject slurry.Injected hole 21 herein can be uniformly distributed along Grouting Pipe 2 or as embodiment 1 is only distributed in Grouting Pipe lower end.In
In the case that grouting pressure is certain, increase slip casting bore, so that the dilation angle of slurry is bigger.On this basis, remaining several column
21 diameter of injected hole is equal and its 21 diameter of injected hole is located therein between a column maximum diameter and minimum diameter.Such as:
Four sides are respectively distributed a vertical setting of types injected hole 21 inside and outside the front and back of each Grouting Pipe 2, and respectively there are four injected holes 21 for each vertical setting of types, far from sea
The diameter of the injected hole 21 of bottom pipeline side is followed successively by 15mm, 20mm, 25mm and 30mm from top to bottom；Its excess-three side injected hole 21
Diameter be 20mm, vertical direction equidistantly distributes.Grouting equipment starts slip casting, and slurries pass through the injected hole in Grouting Pipe 2
In the soil body around 21 injection submarine pipelines.In addition, the injected hole 21 in Grouting Pipe 2 is equally spaced in the vertical direction, it is convenient for
Grouting Pipe 2 can disposably form the trapezoidal grouting and reinforcing area of class during static.Due to the dilation angle and note of slurries
The bore in slurry hole 21 is positively correlated trend, to guarantee at the same pressure, the slip casting distance in 2 outside of Grouting Pipe is from top to bottom etc.
Difference increases, therefore outside slurries are in ramp type, and because interior survey slurries are diffused into submarine pipeline, what final pipeline was formed
Grouting and reinforcing area section is trapezoidal in class.
Embodiment 3
This application provides a kind of slip casting means of defences that disaster is washed away for submarine pipeline, correspond in embodiment 2
Grouting equipment, as shown in Figure 1, comprising the following steps:
A, the Grouting Pipe 2 of grouting equipment is inserted into the ocean soil body of submarine pipeline two sides, and the note of 2 lowermost end of Grouting Pipe
Slurry hole 21 is located at the lower section of submarine pipeline, wherein grouting equipment frame submarine pipeline surface or be mounted on submarine pipeline
On, injected hole 21, which is located at, to be convenient to the surrounding of submarine pipeline and is surrounded by slurry under submarine pipeline；Grouting equipment starts slip casting, slurry
From the ocean soil body that injected hole 21 is diffused into surrounding, the ocean soil body soil body and slurries around submarine pipeline are sufficiently mixed liquid,
It is disposable to form the trapezoidal grouting and reinforcing area of class；
B, during Grouting Pipe 2 moves up, the grouting pressure in grouting equipment is gradually decreased, fills 2 shape of Grouting Pipe
At cavity.
C, Grouting Pipe 2 leaves grouting and reinforcing area.
After step C, increase step D: Grouting Pipe 2 moves forward along submarine pipeline, and repetitive operation step A is to step C, in sea
The trapezoidal diaphragm wall of one section of class is formed around bottom pipeline as grouting and reinforcing area.
Embodiment 4
This application provides another slip casting means of defences that disaster is washed away for submarine pipeline, correspond to embodiment 1
In grouting equipment, as shown in Figure 2, comprising the following steps:
A, the Grouting Pipe 2 of grouting equipment is inserted into the ocean soil body of submarine pipeline two sides, and the note of 2 lowermost end of Grouting Pipe
Slurry hole 21 is located at the lower section of submarine pipeline.Wherein, grouting equipment frame submarine pipeline surface or be mounted on submarine pipeline
On, injected hole 21, which is located at, to be convenient to the surrounding of submarine pipeline and is surrounded by slurry under submarine pipeline.
B, grouting equipment starts slip casting, and slurries are diffused into the ocean soil body of surrounding by injected hole 21, makes submarine pipeline
The lowest level soil body and slurries of surrounding are sufficiently mixed, and form grouting and reinforcing area, suspend slip casting.
C, Grouting Pipe 2 moves up a small distance by telescopic extension section, so that injected hole 21 is located at submarine pipeline institute right
The n-th layer ocean soil body answered, while the grouting pressure of grouting equipment is reduced, slurries diffuse to this layer of ocean soil by injected hole 21
Body is simultaneously sufficiently mixed therewith, forms grouting and reinforcing area, suspends slip casting；Wherein, N is started counting from 2, every operation step a C, N+
1.It should be noted that the distance that Grouting Pipe 2 moves up depends on the vertical distance that injected hole 21 is distributed in Grouting Pipe 2,
Injected hole 21 is distributed more vertically, and the distance that Grouting Pipe 2 needs to shrink upwards every time is bigger, and soil body layering is fewer, but most
End form at trapezoidal effect may be more unobvious.
D, repeat the above steps C, until the top of grouting and reinforcing area covering submarine pipeline, forms the trapezoidal grouting and reinforcing of class
Area；
E, Grouting Pipe 2 is withdrawn from grouting and reinforcing area.
After step E, increase step F: Grouting Pipe 2 moves forward along submarine pipeline, repetitive operation step A to step E.In sea
The trapezoidal diaphragm wall of one section of class is formed around bottom pipeline as grouting and reinforcing area.
It should be noted that the volume of Grouting Pipe 2 itself adds slip casting in embodiment 4 in embodiment 3 and embodiment 4
The influence of Gu Qu is smaller, and Grouting Pipe 2 is disposal molding in embodiment 3, the shadow in the grouting and reinforcing area trapezoidal to class of Grouting Pipe 2
Sound is larger.
Under be illustrated so that one section of diameter is the submarine pipeline of 500mm as an example.The submarine pipeline shallow embedding in sea bed, to its by
It washes away certain serious segment pipe and carries out slip casting protection.
It is illustrated in conjunction with Fig. 3 and Fig. 4, grouting equipment is located at the surface of the submarine pipeline in the present embodiment, two sides
2 diameter of Grouting Pipe is 120mm, and fore-and-aft clearance 350mm, bottom closing, nearly four side of lower end is evenly distributed with column note
Hole 21 is starched, and is same bore, size 20mm.Grouting Pipe 2 is symmetrically inserted into the ocean of submarine pipeline two sides by telescopic extension section
In the soil body, when beginning, the position of injected hole 21 corresponds to the lowest level soil body around submarine pipeline.Grouting equipment starts slip casting,
Slurries are diffused into the ocean soil body of surrounding by injected hole 21, mix the lowest level soil body and slurries around submarine pipeline sufficiently
Suspend slip casting after conjunction.Then, Grouting Pipe 2 shrinks 100mm by telescopic extension section upwards, and the position of injected hole 21 is made to correspond to sea
The second layer soil body (from the bottom up) around bottom pipeline, while the appropriate grouting pressure for reducing slip casting main body 1 starts slip casting, slurries
The layer soil body is diffused to by injected hole 21 and suspends slip casting after being mixed with.Later, Grouting Pipe 2 shrinks 100mm again up,
Delamination pour slurry successively is carried out to up one layer of the soil body, until having infused top layer's soil body around submarine pipeline, delamination pour slurry is complete
The diffusion length of Cheng Hou, each layer slurries are successively decreased from bottom to top, and edge can form class trapezoidal profile as shown by dashed lines.Later, it infuses
It starches 2 full retraction of pipe to return in grouting equipment, then is advanced one section by the driving device of slip casting body interior along submarine pipeline direction
Distance, the Grouting Pipe 2 of the grouting equipment rearmost two sides after just making movement navigate to the note of the mobile preceding forefront two sides of equipment
2 position of pipe is starched, Grouting Pipe 2 is all stretched out again, in the symmetrical soil body for being inserted into pipeline two sides, carries out the delamination pour slurry of a new round.
It repeats the above steps, until grouting equipment covers the part that the submarine pipeline needs slip casting, slip casting is completed, finally in submarine pipeline
Surrounding forms the trapezoidal diaphragm wall of one section of class as grouting and reinforcing area.
After submarine pipeline slip casting protection, what the slurries that the ocean soil body and Grouting Pipe 2 of pipeline two sides are spread were mixed and condensed in
The trapezoidal diaphragm wall of class produces grouting and reinforcing area, the grouting and reinforcing area protective layer thick and heavy as submarine pipeline, can be effective
Protect submarine pipeline from destroying.Submarine pipeline before comparing non-slip casting, the soil that injecting cement paste changes around original pipeline are answered
Power distribution is become the main passive earth pressure with downward component, is significantly improved original by the original main passive earth pressure of level
The bearing capacity of the pipeline soil body.By Coulomb's earth pressure theory, if grouting and reinforcing area right side is by action of ocean current, submarine pipeline
With grouting and reinforcing district's groups at whole right side can generate to the movement for leaving ocean soil body direction, while left side can be generated to close
The movement in ocean soil body direction, therefore generate total passive earth pressure respectively at left and right sides of grouting and reinforcing areaWith
Total active earth pressureWherein D is pipe diameter, and γ ' is the buoyant weight degree of the ocean soil body, KpAnd KaRespectively library
Logical sequence coefficient of passive earth pressure and coulomb coefficient of active earth pressure.Guarantee that the inclined angle alpha between grouting and reinforcing area and vertical line is greater than
Angle of friction between grouting and reinforcing area and the soil body, total active earth pressure EaAnd EpTotal passive earth pressure can be analyzed to horizontal direction
With the component of vertical direction, wherein the downward component of vertical direction can effectively avoid submarine pipeline because of stormy waves and ocean current souring
And be exposed, so that the huge bending moment being subject to because pipeline is hanging and active force be avoided to destroy.
As shown in connection with fig. 4, submarine pipeline, which meets with the external loads such as strong ocean wave, strong bathycurrent and generates, washes away disaster
Afterwards, the soil body outside grouting and reinforcing area is washed, and grouting and reinforcing area is more difficult is washed, and can effectively resist external loads pair
Submarine pipeline bring, which is washed away, corroded, emptying etc., to be destroyed.After local scour occurring or entirety is washed away, before comparing non-slip casting
Submarine pipeline device, injecting cement paste changes the distribution of water pressure around original submarine pipeline, is perpendicularly oriented to pipeline by original
Water pressure, become the water pressure with downward component, improve the vertical stability of injecting cement paste, can preferably protect seabed
Pipeline.When being washed away outside injecting cement paste, by hydraulic pressure calculation formula, the grouting and reinforcing area water pressure downward by straight bevel facet
ρ ga, wherein z is the vertical range for a little arriving ocean surface in grouting and reinforcing area for the density of seawater.
Above with reference to preferred embodiment, invention has been described, but protection scope of the present invention is not restricted to
This can carry out various improvement to it and can be replaced wherein with equivalent without departing from the scope of the invention
Component, as long as be not present structural conflict, it is mentioned in the various embodiments items technical characteristic can combine in any way
Get up, and any reference signs in the claims should not be construed as limiting the involved claims, no matter comes from which point
It sees, the present embodiments are to be considered as illustrative and not restrictive.Therefore, any to fall within the scope of the appended claims
All technical solutions be within the scope of the invention.
Claims (7)
1. a kind of grouting equipment of submarine pipeline characterized by comprising
Slip casting main body (1) is set to the top of submarine pipeline, is equipped with the drive for driving its own to move in the slip casting main body (1)
Dynamic device；
At least two groups Grouting Pipe (2) is connect, on the Grouting Pipe (2) with the slip casting main body (1) respectively by telescopic extension section
Injected hole (21) equipped with the injected hole (21) that several slurries in the slip casting main body (1) are connected to, on the Grouting Pipe (2)
It is arranged along duct orientation at least four, wherein the diameter of the injected hole (21) that submarine pipeline one arranges backwards from the top down successively increases
Greatly, in addition injected hole (21) diameter of several column is equal and its injected hole (21) diameter is located therein a column maximum gauge and most
Between minor diameter；
Pressure pump is set in the slip casting main body (1) or Grouting Pipe (2), for controlling the slurries flowed out from injected hole (21)
Radius.
2. a kind of grouting equipment of submarine pipeline according to claim 1, which is characterized in that on the Grouting Pipe (2)
Injected hole (21) be equally spaced in the vertical direction.
3. a kind of grouting equipment of submarine pipeline according to claim 1, which is characterized in that the driving device is row
Wheel is walked, the slip casting main body (1) is walked on submarine pipeline by driving device.
4. a kind of slip casting means of defence for washing away disaster for submarine pipeline, which is characterized in that the injected hole in Grouting Pipe (2)
(21) it is arranged along submarine pipeline direction at least four, wherein the diameter of the injected hole (21) that submarine pipeline one arranges backwards from the top down
It is sequentially increased, in addition injected hole (21) diameter of several column is equal and its injected hole (21) diameter is located therein column maximum directly
Between diameter and minimum diameter, it the described method comprises the following steps:
A, the Grouting Pipe (2) of grouting equipment is inserted into the ocean soil body of submarine pipeline two sides, and the note of Grouting Pipe (2) lowermost end
Slurry hole (21) is located at the lower section of submarine pipeline, and grouting equipment starts slip casting, and slurries are diffused into the ocean of surrounding from injected hole (21)
In the soil body, the ocean soil body soil body and slurries around submarine pipeline are sufficiently mixed, and form the trapezoidal grouting and reinforcing area of class；
B, during Grouting Pipe (2) moves up, the grouting pressure in grouting equipment is gradually decreased, fills Grouting Pipe (2) shape
At cavity；
C, Grouting Pipe (2) leaves grouting and reinforcing area.
5. a kind of slip casting means of defence for washing away disaster for submarine pipeline according to claim 4, which is characterized in that In
After the step C, increase step D: Grouting Pipe (2) moves forward along submarine pipeline, repetitive operation step A to step C.
6. a kind of slip casting means of defence for washing away disaster for submarine pipeline, which is characterized in that the injected hole in Grouting Pipe (2)
(21) it is arranged along submarine pipeline direction at least four, wherein the diameter of the injected hole (21) that submarine pipeline one arranges backwards from the top down
It is sequentially increased, in addition injected hole (21) diameter of several column is equal and its injected hole (21) diameter is located therein column maximum directly
Between diameter and minimum diameter, it the described method comprises the following steps:
A, the Grouting Pipe (2) of grouting equipment is inserted into the ocean soil body of submarine pipeline two sides, and the note of Grouting Pipe (2) lowermost end
Slurry hole (21) is located at the lower section of submarine pipeline；
B, grouting equipment starts slip casting, and slurries are diffused into the ocean soil body of surrounding by injected hole (21), keeps submarine pipeline all
The lowest level soil body and slurries enclosed is sufficiently mixed, and forms grouting and reinforcing area, suspends slip casting；
C, Grouting Pipe (2) moves up, and so that injected hole (21) is located at the n-th layer ocean soil body corresponding to submarine pipeline, drops simultaneously
The grouting pressure of low grouting equipment, slurries are diffused to this layer of ocean soil body and are sufficiently mixed therewith by injected hole (21), are formed
Grouting and reinforcing area suspends slip casting；
Wherein, N is started counting from 2, every operation step a C, N+1；
D, repeat the above steps C, until the top of grouting and reinforcing area covering submarine pipeline, forms the trapezoidal grouting and reinforcing area of class；
E, Grouting Pipe (2) is withdrawn from grouting and reinforcing area.
7. a kind of slip casting means of defence for washing away disaster for submarine pipeline according to claim 6, which is characterized in that In
After the step E, increase step F: Grouting Pipe (2) moves forward along submarine pipeline, repetitive operation step A to step E.
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| CN201811265259.3A CN109610462B (en) | 2018-10-29 | 2018-10-29 | The grouting equipment for washing away the slip casting means of defence of disaster for submarine pipeline and its using |
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| CN201811265259.3A CN109610462B (en) | 2018-10-29 | 2018-10-29 | The grouting equipment for washing away the slip casting means of defence of disaster for submarine pipeline and its using |
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| JP2767224B2 (en) * | 1995-12-21 | 1998-06-18 | 日本仮設株式会社 | Underwater concrete casting equipment |
| US20090092447A1 (en) * | 2007-10-08 | 2009-04-09 | Armortec, Inc. | Non-abrasive pad for an articulated seabed mat |
| CN207862919U (en) * | 2018-01-17 | 2018-09-14 | 盐城工业职业技术学院 | A kind of spiral pushing device and system for being reinforced along seabeach |
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2018
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