CN112942336A - Modular apron board pile shoe of self-elevating drilling platform and drilling platform - Google Patents
Modular apron board pile shoe of self-elevating drilling platform and drilling platform Download PDFInfo
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- CN112942336A CN112942336A CN202110423901.1A CN202110423901A CN112942336A CN 112942336 A CN112942336 A CN 112942336A CN 202110423901 A CN202110423901 A CN 202110423901A CN 112942336 A CN112942336 A CN 112942336A
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- apron board
- skirt
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- apron
- pile shoe
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/72—Pile shoes
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D9/00—Removing sheet piles bulkheads, piles, mould-pipes or other moulds or parts thereof
- E02D9/02—Removing sheet piles bulkheads, piles, mould-pipes or other moulds or parts thereof by withdrawing
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- General Engineering & Computer Science (AREA)
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Abstract
The invention discloses a modular apron board pile shoe of a self-elevating drilling platform, which is characterized in that: the pile shoe comprises a pile shoe body and a plurality of skirt board modules which are arranged on the outer side of the pile shoe body at intervals and uniformly; the apron board module comprises an apron board connector which is connected to the outer side of the pile shoe body; the skirt board main body is connected to the bottom of the skirt board connector and is of a closed structure or a semi-closed structure, and the lowest point of the skirt board main body is lower than that of the pile shoe main body. The apron board main body in the apron board module is inserted into a hard soil layer before the pile shoe main body, so that the hard egg shell stratum of the upper layer and the soft lower layer can be damaged in advance, namely the hard soil layer structure is damaged, the bearing capacity of a foundation is reduced, and the puncture risk in the pile inserting process is reduced; gaps exist among the apron board modules, soil at the bottom of the pile shoe body is extruded and then discharged from the gaps among the apron board modules, a soil backflow channel is formed, and the influence of the apron board modules on ballast in a soft soil layer is reduced.
Description
Technical Field
The invention relates to a self-elevating drilling platform, in particular to a modular apron board pile shoe of the self-elevating drilling platform, and belongs to the technical field of ocean engineering.
Background
A jack-up platform is one of the important large equipments for offshore construction work. At present, the self-elevating platform widely adopts pile shoes as a supporting structure between the platform and a foundation, and the form of the self-elevating platform is usually a circular or polygonal steel structure with an upper conical surface and a lower conical surface, so that the pile end resistance is improved, and a stable supporting carrier is provided for the platform. However, traditional self-elevating platform pile shoe area is big, and the bottom slope is comparatively gentle, when meetting the soft "eggshell" stratum of the hard lower floor in upper strata, can produce the sudden change of upper and lower floor's bearing capacity, and lower floor's foundation bearing capacity reduces suddenly promptly, brings the puncture risk for the platform, can influence platform overall structure safety when serious.
Disclosure of Invention
In view of the above problems, it is an object of the present invention to provide a modular skirt shoe for a jack-up rig, which can break an 'egg shell' formation in advance during the pile shoe insertion process and reduce the risk of puncture during the pile insertion process by changing the shape of the shoe, and to provide a rig including the modular skirt shoe.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, the invention provides a self-elevating drilling platform modular apron shoe, which comprises a shoe body and a plurality of apron modules which are arranged on the outer side of the shoe body at intervals and uniformly;
the apron board module comprises an apron board connector which is connected to the outer side of the pile shoe body; the skirt board main body is connected to the bottom of the skirt board connector and is of a closed structure or a semi-closed structure, and the lowest point of the skirt board main body is lower than that of the pile shoe main body.
The modular skirt shoe of the self-elevating drilling platform preferably includes:
the apron board supporting structure is connected to the bottom of the apron board connecting body;
an apron board outer plate positioned at the outer side and arranged on the apron board supporting structure,
the bottom of the apron board supporting structure and/or the apron board outer plate is tapered, and the lowest point of the apron board supporting structure and/or the apron board outer plate is lower than the lowest point of the pile shoe body.
The modular apron board pile shoe of the self-elevating drilling platform is characterized in that preferably, the apron board supporting structure and the apron board outer plate are both of a plate type structure or a box type structure;
when a plate type structure is adopted, the two apron board supporting structures are arranged on two sides of the apron board connecting body, and the apron board outer plate is fixedly connected between the outer sides of the two apron board supporting structures; the apron board outer plate is of an arc-shaped plate structure;
the bottom of the apron board supporting structure is provided with a taper, and the lowest point of the taper of the bottom of the apron board supporting structure is coincided with the lowest point of the apron board outer plate.
The modular skirt shoe of a jack-up rig, preferably, the skirt connector is detachably connected to the shoe body by a locking pin assembly, the locking pin assembly comprising:
the pin piece is movably connected between the apron board connecting body and the pile shoe body;
a drive member disposed within the shoe body, coupled to the pin member, and configured to drive the pin member out of the shoe body;
a non-return structure disposed within the apron connection body and configured to lock a pin exiting the shoe body within the apron connection body.
The self-elevating drilling platform modular skirt pile shoe is characterized in that the driving part is preferably a hydraulic telescopic part;
or the driving piece is a hydraulic cavity arranged in the pile shoe body, one end of the pin piece is in sliding fit with the hydraulic cavity, and a sealing piece is arranged outside the pin piece and between the apron board connecting body and the pile shoe body.
The modular skirt shoe of the self-elevating drilling platform preferably has the check structure comprising:
a check block disposed on the pin;
a check groove arranged in the apron board connecting body,
a locking piece disposed within the check slot and configured to lock the check block within the check slot after the pin enters the check slot.
The self-elevating drilling platform modular apron pile shoe preferably forms a step between the check block and the pin piece, the locking piece comprises at least two telescopic rod pieces which are symmetrically arranged in the inner side wall of the check groove, the telescopic rod pieces can move between a locking position and an unlocking position along the direction orthogonal to the movement direction of the pin piece, the inner side wall, extending out of the check groove, of the telescopic rod pieces is blocked at the step between the check block and the pin piece when the locking position is achieved, and the telescopic rod pieces retract into the inner side wall of the check groove when the unlocking position is achieved.
Preferably, the hydraulic cavity is connected with a platform pile washing system through a pipeline, the pipeline comprises a main pipeline and a branch pipeline, the main pipeline is arranged in the pile shoe body, and one end of the main pipeline penetrates through the pile shoe body to be connected with the platform pile washing system; the other end of the main pipeline is connected with a plurality of branch pipelines, the branch pipelines are connected with the hydraulic cavity, and the number of the branch pipelines is the same as that of the lock pin assemblies.
The self-elevating drilling platform modular apron shoe preferably further comprises an elastic member, the pin member is connected in the apron connecting body through the elastic member, and the elastic member always applies an external force to the pin member, so that the pin member can extend out of the apron connecting body to be connected with the shoe body.
In a second aspect, the invention also provides a drilling platform comprising a jack-up rig modular skirt shoe according to any of the first aspects.
By adopting the technical scheme, the invention has the following advantages: according to the invention, the apron board modules are arranged at intervals on the outer side of the pile shoe body, the lowest point of the apron board main body of the apron board module is lower than the lowest point of the pile shoe body, when the pile shoe body penetrates into a stratum, the apron board main body in the apron board module is firstly inserted into a hard soil layer in advance in the pile shoe body, and the hard soil layer structure is damaged, so that the bearing capacity of a foundation is reduced, and the puncture risk in the pile inserting process is reduced; gaps exist among the apron board modules, soil at the bottom of the pile shoe body is extruded and then discharged from the gaps among the apron board modules, a soil backflow channel is formed, and the influence of the apron board modules on ballast in a soft soil layer is reduced.
2. The apron board connecting body is detachably connected with the pile shoe body through the lock pin assembly, when pile pulling is difficult or emergency exit from a well position is required, the apron board connecting body can be separated from the pile shoe body by opening the lock pin assembly, the pile shoe body is only lifted during pile pulling, and the apron board module is left on the sea bottom to be taken out later, so that pile pulling resistance is reduced, and quick pile pulling is realized.
Drawings
Fig. 1 is an overall schematic view of a modular skirt shoe of a jack-up rig according to an embodiment of the present invention;
FIG. 2 is a front view of a modular skirt shoe of a jack-up rig provided in accordance with an embodiment of the present invention;
fig. 3 is a bottom view of a modular skirt shoe of a jack-up rig according to an embodiment of the present invention;
fig. 4 is a partial schematic view of a locking pin assembly in a modular skirt shoe of a jack-up rig according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "inner", "outer", "transverse", "vertical", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the system or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used to define elements only for convenience in distinguishing between the elements, and unless otherwise stated have no special meaning and are not to be construed as indicating or implying any relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The embodiment of the disclosure provides a self-elevating drilling platform modular apron shoe and a drilling platform. The modular apron board pile shoe comprises a pile shoe body and a plurality of apron board modules which are uniformly distributed at intervals on the outer side of the pile shoe body; the apron board module comprises an apron board connector which is connected to the outer side of the pile shoe body; the apron board main part is connected at the bottom of the apron board connector, the apron board main part is of a closed structure or a semi-closed structure, and the lowest point of the apron board main part is lower than the lowest point of the pile shoe body. Set up a plurality of skirtboard modules through the outside at the pile shoe body, change the appearance of pile shoe body, when the pile shoe body penetrates the stratum, the skirtboard main part in the skirtboard module is earlier in the pile shoe body inserts hard soil layer, destroys the soft "eggshell" stratum of upper hard lower floor in advance, destroys hard soil layer structure promptly, reduces ground bearing capacity to reduce the puncture risk of inserting the stake in-process. When ballast is carried out in a soft soil layer, soil at the bottom of the pile shoe body is extruded and then discharged from gaps among the apron board modules to form a soil backflow channel, so that the influence of the apron board modules on ballast in the soft soil layer is reduced. In addition, the skirtboard connecting body is separably connected with the pile shoe body through the lock pin assembly, when pile pulling is difficult or needs to leave the well position urgently, the skirtboard connecting body can be separated from the pile shoe body by opening the lock pin assembly, the pile shoe body is only lifted during pile pulling, the skirtboard module is left on the seabed to be taken out subsequently, pile pulling resistance is reduced, and quick pile pulling is realized.
Hereinafter, the modular skirt shoe and the drilling platform of the self-elevating drilling platform according to the embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.
As shown in fig. 1, an embodiment of the present disclosure provides a jack-up rig modular skirt shoe. The modular apron board pile shoe comprises a pile shoe body 1 and apron board modules 2, wherein the apron board modules 2 are arranged on the outer side of the pile shoe body 1 at intervals and uniformly, and it should be noted that the number of the apron board modules 2 can be selected according to the characteristics of a target stratum, but gaps exist between the adjacent apron board modules 2.
As shown in fig. 2, the apron module 2 includes an apron connector 21 and an apron body 22; the apron board connecting body 21 is connected to the outer side of the pile shoe body 1; the apron board main body 22 is connected to the bottom of the apron board connecting body 21, the apron board main body 22 is of a closed structure or a semi-closed structure, and the lowest point of the apron board main body 22 is lower than that of the pile shoe main body 1.
In the self-elevating drilling platform modular skirt board pile shoe provided by the embodiment of the disclosure, a plurality of skirt board modules 2 are uniformly arranged at the outer side of a pile shoe body 1 at intervals, the lowest point of a skirt board main body 22 in each skirt board module 2 is lower than the lowest point of the pile shoe body 1, when the pile shoe body 1 and the skirt board modules 2 are inserted into a soil layer, a gap between the skirt board modules 2 can be used for extruding and discharging a soft soil layer on the upper part of an eggshell layer, so that a soil plug is prevented from being formed in a space surrounded by the skirt board modules 2 in the circle at the bottom of the pile shoe body 1, the skirt board main body 22 in each skirt board module 2 is inserted into a hard soil layer before the pile shoe body 1, the soft eggshell layer on the upper layer and the lower layer is damaged in advance, namely, the hard soil layer structure is damaged, the bearing capacity of a foundation is reduced, the pile inserting efficiency is improved.
In some examples, as shown in fig. 3, the skirt main body 22 comprises a skirt support structure 221 and a skirt outer panel 222, the skirt support structure 221 is connected to the bottom of the skirt connector 21, the skirt outer panel 222 is located on the outer side and mounted on the skirt support structure 221, and the lowest point of the skirt support structure 221 and/or the skirt outer panel 222 is lower than the lowest point of the spud shoe body 1.
In some examples, skirt support structure 221 and skirt outer panel 222 may be of a panel or box type construction depending on different formation characteristics to increase the ability to break hard earth formations. Specifically, as shown in fig. 3, the skirt panel support structure 221 and the skirt panel outer panel 222 are both of a plate type structure, the two skirt panel support structures 221 are disposed on both sides of the skirt panel connector 21, and the skirt panel outer panel 222 is fixedly connected between outer sides of the two skirt panel support structures 221. Preferably, the skirt outer panel 222 is an arc-shaped panel structure.
In some examples, the bottom of the skirt body 22 is tapered to increase the ability of the pile shoe to penetrate the soil mass when ballasted. Specifically, the bottom of the apron board supporting structure 221 may have a taper, and the lowest point of the taper of the bottom of the apron board supporting structure 221 coincides with the lowest point of the apron board outer plate 222, so that the capability of inserting the apron board main body 22 into a hard soil layer is greatly increased, the capability of damaging the hard soil layer by the modular apron board pile shoe is further increased, the bearing capacity of the foundation is reduced, and the puncture risk in the pile inserting process is reduced.
In some examples, as shown in fig. 4, the skirt connector 21 is detachably connected with the pile shoe body 1 by a locking pin assembly 3, the locking pin assembly 3 comprising a pin 31, a driving member 32 and a non-return structure 33; the pin piece 31 is movably connected between the apron board connecting body 21 and the pile shoe body 1; a driving member 32 is arranged inside the pile shoe body 1, connected to the pin member 31 and configured to drive the pin member 31 out of the pile shoe body 1; a non-return structure 33 is provided in the skirt connector 21 and is configured to lock the pin 31 exiting the boot body 1 in the skirt connector 21. Therefore, the apron board connecting body 21 and the pile shoe body 1 are separably connected together, when pile pulling is difficult or the pile shoe needs to leave a well position emergently, the lock pin assembly 3 can be opened through the driving piece 32, the apron board connecting body 21 is separated from the pile shoe body 1, the pile shoe body 1 is only lifted during pile pulling, the apron board module 2 is left on the seabed to be taken out subsequently, pile pulling resistance is reduced, and quick pile pulling is achieved.
In some examples, the driving member 32 may be a hydraulic telescopic member, and in use, the telescopic end of the hydraulic telescopic member is controlled to extend against one end of the pin member 31, thereby driving the pin member 31 to exit the pile shoe body 1. It should be understood that the drive member 32 is not so limited and other telescoping members may be used.
Preferably, the driving member 32 is also a hydraulic chamber opened in the pile shoe body 1, one end of the pin member 31 is slidably fitted in the hydraulic chamber, and a sealing member 34 (e.g. a sealing ring) is provided outside the pin member 31 between the skirt connecting body 21 and the pile shoe body 1 to ensure the sealing property of the hydraulic chamber, so that in use, a liquid can be injected into the hydraulic chamber to drive one end of the pin member 31 to slide along the hydraulic chamber and exit the pile shoe body 1. Specifically, the hydraulic cavity can be connected with a platform pile-washing system on a platform deck through a pipeline 4, seawater is pumped in by a high-pressure pump, enters the hydraulic cavity through the pipeline 4, and pushes the pin piece 31 to exit the pile shoe body 1.
In some examples, as shown in fig. 4, check structure 33 includes a check block 331, a check groove 332, and a locking element (not shown), check groove 332 being disposed within apron interface 21, check block 331 being disposed on pin element 31; a locking member is provided in the check groove 332 and configured to lock the check piece 331 in the check groove 332 after the pin 31 enters the check groove 332, thereby locking the pin 31 in the apron connection body 21, which cannot be automatically opened except by manual operation.
In some examples, the check 331 and the pin 31 form a step therebetween, and the locking element includes at least two telescopic rods symmetrically disposed within the inner sidewalls of the check slot 332, the telescopic rods being movable in a direction orthogonal to the direction of movement of the pin 31 between a locking position in which the telescopic rods extend beyond the inner sidewalls of the check slot to be stopped at the step between the check 331 and the pin 31, and an unlocking position in which the telescopic rods are retracted within the inner sidewalls of the check slot.
In some examples, the locking pin assembly 3 further comprises an elastic member 35, the pin member 31 is connected in the apron connector 21 through the elastic member 35, and the elastic member 35 always applies an external force to the pin member 31 so that the pin member 31 can extend out of the apron connector 21 to be connected with the pile shoe body 1.
In some examples, as shown in fig. 2, the pipeline 4 comprises a main pipeline 41 and a branch pipeline 42, the main pipeline 41 is arranged in the pile shoe body 1, one end of the main pipeline 41 passes through the pile shoe body 1 to be fixed on the pile leg and extends upwards to the platform main deck, and the platform pile punching system can be connected; the other end of the main pipeline 41 is connected with a plurality of branch pipelines 42, the branch pipelines 42 are connected with the hydraulic chambers, and the number of the branch pipelines 41 is the same as that of the lock pin assemblies 3.
In some examples, the top of the skirt connector 21 forms a step surface that fits the side surface 11 and the bottom surface 12 of the pile shoe body 1, and the step surface and the pile shoe body 1 are detachably connected by the hydraulic locking pin 3.
The working principle of the modular skirt pile shoe of the self-elevating drilling platform provided by the embodiment of the disclosure is as follows:
before operation, the apron module 2 is installed on the pile shoe body 1 in a manual operation mode, the pin piece 31 is connected between the apron connecting body 21 and the pile shoe body 1, and namely the locking pin assembly 3 is in a locking state.
During the process of putting the pile shoe body 1 into the sea floor, the weight and part of the horizontal load of the skirt module 2 is taken up by the lock pin assembly 3. When the pile shoe body 1 contacts the seabed, the side plate 11 and the bottom plate 12 of the pile shoe body 1 bear main vertical pressure and horizontal load, and the locking pin assembly 4 plays a limiting role.
When ballast is carried out in a soft soil layer, soil at the bottom of the pile shoe body 1 is extruded and then discharged from gaps among the apron board modules 2 to form a soil backflow channel, so that the influence of the apron board modules 2 on ballast in the soft soil layer is reduced.
When ballasting in the soft under hard "eggshell" stratum, apron board main part 22 bottom is earlier than pile shoe body 1 bottom contact hardpan, because its and soil layer area of contact is little, can insert fast in the hardpan, destroys the soil layer structure, reduces the bearing capacity to reach the mesh that reduces the puncture risk.
When the emergency pile pulling is needed to evacuate or the pile pulling is blocked, the pipeline 4 can be connected with a platform pile punching system, and seawater is pumped in by a high-pressure pump. Seawater enters the hydraulic cavity through the hydraulic cavity 41, the pin member 31 is pushed until the seawater enters the check groove 332, and the locking member locks the check block 331 in the check groove 332, namely the pin member 31 is in an open position; when all the pin members 31 are opened, the shoe body 1 is completely separated from the skirt module 2. And only the pile shoe body 1 is lifted up during pile pulling, and the apron board module 2 is left at the seabed to be taken out later, so that pile pulling resistance is reduced, and pile pulling is completed quickly.
An embodiment of the present disclosure also provides a drilling platform comprising the self-elevating drilling platform modular skirt shoe of any of the above embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a self-elevating drilling platform modular skirting board pile shoe which characterized in that: the pile shoe comprises a pile shoe body and a plurality of skirt board modules which are arranged on the outer side of the pile shoe body at intervals and uniformly;
the apron board module comprises an apron board connector which is connected to the outer side of the pile shoe body; the skirt board main body is connected to the bottom of the skirt board connector and is of a closed structure or a semi-closed structure, and the lowest point of the skirt board main body is lower than that of the pile shoe main body.
2. The modular skirt shoe of claim 1, wherein said skirt body comprises:
the apron board supporting structure is connected to the bottom of the apron board connecting body;
an apron board outer plate positioned at the outer side and arranged on the apron board supporting structure,
the bottom of the apron board supporting structure and/or the apron board outer plate is tapered, and the lowest point of the apron board supporting structure and/or the apron board outer plate is lower than the lowest point of the pile shoe body.
3. The jack-up rig modular skirt shoe of claim 2, wherein: the apron board supporting structure and the apron board outer plate are both of a plate type structure or a box type structure;
when a plate type structure is adopted, the two apron board supporting structures are arranged on two sides of the apron board connecting body, and the apron board outer plate is fixedly connected between the outer sides of the two apron board supporting structures; the apron board outer plate is of an arc-shaped plate structure;
the bottom of the apron board supporting structure is provided with a taper, and the lowest point of the taper of the bottom of the apron board supporting structure is coincided with the lowest point of the apron board outer plate.
4. The jack-up rig modular skirt shoe of claim 1, wherein said skirt connector is detachably connected to said shoe body by a lockpin assembly, said lockpin assembly comprising:
the pin piece is movably connected between the apron board connecting body and the pile shoe body;
a drive member disposed within the shoe body, coupled to the pin member, and configured to drive the pin member out of the shoe body;
a non-return structure disposed within the apron connection body and configured to lock a pin exiting the shoe body within the apron connection body.
5. The jack-up rig modular skirt shoe of claim 4, wherein: the driving piece is a hydraulic telescopic piece;
or the driving piece is a hydraulic cavity arranged in the pile shoe body, one end of the pin piece is in sliding fit with the hydraulic cavity, and a sealing piece is arranged outside the pin piece and between the apron board connecting body and the pile shoe body.
6. The jack-up rig modular skirt shoe of claim 4, wherein the non-return structure comprises:
a check block disposed on the pin;
a check groove arranged in the apron board connecting body,
a locking piece disposed within the check slot and configured to lock the check block within the check slot after the pin enters the check slot.
7. The modular skirt pile shoe of claim 6, wherein the check block and the pin member form a step therebetween, and the locking member comprises at least two telescopic rods symmetrically disposed in the inner sidewall of the check groove, the telescopic rods being movable in a direction orthogonal to the movement direction of the pin member between a locking position in which the telescopic rods extend out of the inner sidewall of the check groove to block the step between the check block and the pin member and an unlocking position in which the telescopic rods are retracted into the inner sidewall of the check groove.
8. The jack-up rig modular skirt shoe of claim 5, wherein: the hydraulic cavity is connected with the platform pile washing system through a pipeline, the pipeline comprises a main pipeline and a branch pipeline, the main pipeline is arranged in the pile shoe body, and one end of the main pipeline penetrates through the pile shoe body to be connected with the platform pile washing system; the other end of the main pipeline is connected with a plurality of branch pipelines, the branch pipelines are connected with the hydraulic cavity, and the number of the branch pipelines is the same as that of the lock pin assemblies.
9. The jack-up rig modular skirt shoe of claim 4, wherein: the lock pin assembly further comprises an elastic piece, the pin piece is connected in the apron board connecting body through the elastic piece, and the elastic piece always applies external force to the pin piece, so that the pin piece can extend out of the apron board connecting body to be connected with the pile shoe body.
10. A drilling platform, characterized by: comprising a jack-up rig modular skirt shoe according to any of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110423901.1A CN112942336A (en) | 2021-04-20 | 2021-04-20 | Modular apron board pile shoe of self-elevating drilling platform and drilling platform |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110423901.1A CN112942336A (en) | 2021-04-20 | 2021-04-20 | Modular apron board pile shoe of self-elevating drilling platform and drilling platform |
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| CN202110423901.1A Pending CN112942336A (en) | 2021-04-20 | 2021-04-20 | Modular apron board pile shoe of self-elevating drilling platform and drilling platform |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114855790A (en) * | 2022-04-06 | 2022-08-05 | 同济大学 | Novel multi-cylinder pile shoe foundation |
| WO2023221358A1 (en) * | 2022-05-17 | 2023-11-23 | 江苏科技大学 | Deepwater jack-up wind generator installation platform pile shoe having good anti-sideslip performance |
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| CN114855790A (en) * | 2022-04-06 | 2022-08-05 | 同济大学 | Novel multi-cylinder pile shoe foundation |
| WO2023221358A1 (en) * | 2022-05-17 | 2023-11-23 | 江苏科技大学 | Deepwater jack-up wind generator installation platform pile shoe having good anti-sideslip performance |
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Application publication date: 20210611 |