CN107740409B - Offshore pile shoe capable of being quickly pulled up and truss type pile leg using same - Google Patents
Offshore pile shoe capable of being quickly pulled up and truss type pile leg using same Download PDFInfo
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- CN107740409B CN107740409B CN201711142508.5A CN201711142508A CN107740409B CN 107740409 B CN107740409 B CN 107740409B CN 201711142508 A CN201711142508 A CN 201711142508A CN 107740409 B CN107740409 B CN 107740409B
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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
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D13/00—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D13/00—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
- E02D13/08—Removing obstacles
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2200/00—Geometrical or physical properties
- E02D2200/16—Shapes
- E02D2200/165—Shapes polygonal
- E02D2200/1664—Shapes polygonal made from multiple elements
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0061—Production methods for working underwater
- E02D2250/0092—Production methods for working underwater using hydraulical means
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
The invention discloses a quick-drawing offshore pile shoe and truss type pile leg using the same, comprising a pile shoe body and a spraying mechanism, wherein the spraying mechanism is connected with the pile shoe body; the spraying and flushing mechanism comprises an upper spraying and flushing unit and a lower spraying and flushing unit which are mutually independent, the upper spraying and flushing unit comprises an upper conveying pipe, an upper annular main pipe and an upper spraying and flushing pipe, the lower spraying and flushing unit comprises a lower conveying pipe, a lower annular main pipe and a lower spraying and flushing pipe, the upper conveying pipe and the lower conveying pipe are arranged above the pile shoe body in parallel, and one end of the upper conveying pipe and one end of the lower conveying pipe are inserted into the pile shoe body. The upper spraying unit and the lower spraying unit are mutually independent, and the pressure intensity of high-pressure water in the upper spraying unit is larger than that in the lower spraying unit, so that the pile shoe body can be quickly pulled up.
Description
Technical Field
The invention relates to the field of ocean platforms, in particular to a marine pile shoe capable of being quickly pulled up and a truss type pile leg using the marine pile shoe.
Background
The self-elevating ocean platform, also called as pile foot type ocean platform, is the most widely used drilling platform at home and abroad at present, and has the characteristics of convenient floating transportation and good stability during operation. The self-elevating ocean platform hull stretches the pile legs into the seabed through the lifting system, when the pile legs reach the seabed, the hull can be lifted to a certain height and bear the weight of the hull, and a stable ocean working platform is built through the supporting action of the pile legs and the pile shoes; when transferring, the pile legs are pulled up, the barge type ship body descends to float on the water surface, and the barge type ship body can be hauled to another place. For the sealed pile shoe, the inside of the sealed pile shoe is not communicated with the outside, so that the upper surface of the sealed pile shoe can be subjected to soil backlog action and seawater pressure during pile pulling, and meanwhile, the lower surface of the sealed pile shoe can generate vacuum, so that the sealed pile shoe is not easy to pull out, and the lifting speed of a pile leg is seriously influenced.
Disclosure of Invention
The invention aims to provide an offshore pile shoe capable of being quickly pulled up and a truss type pile leg using the same, which can wash away soil adhered to the upper surface of the pile shoe during pile pulling, eliminate the vacuum phenomenon of the lower surface, independently control the upper and lower spraying, realize the quick pulling up of the pile shoe and improve the lifting speed of the pile leg.
To achieve the purpose, the invention adopts the following technical scheme:
the marine pile shoe comprises a pile shoe body and a spraying mechanism, wherein the spraying mechanism is connected with the pile shoe body;
the upper spraying and flushing unit comprises an upper conveying pipe, an upper annular main pipe and an upper spraying and flushing pipe, the lower spraying and flushing unit comprises a lower conveying pipe, a lower annular main pipe and a lower spraying and flushing pipe, the upper conveying pipe and the lower conveying pipe are arranged above the pile shoe body in parallel, and one end of the upper conveying pipe and one end of the lower conveying pipe are inserted into the pile shoe body;
the upper annular main pipe and the lower annular main pipe are arranged in the pile shoe body, the upper annular main pipe is arranged above the lower annular main pipe in parallel, one end of the upper conveying pipe is communicated with the upper annular main pipe, and one end of the lower conveying pipe is communicated with the lower annular main pipe;
the spraying mechanism further comprises a plurality of spraying heads and a plurality of input nozzles, the plurality of spraying heads which are radially distributed are arranged on the upper surface and the lower surface of the pile shoe body, the spraying heads positioned on the upper surface of the pile shoe body are communicated with the upper annular main pipe through an upper spraying pipe, and the spraying heads positioned on the lower surface of the pile shoe body are communicated with the lower annular main pipe through a lower spraying pipe;
the outer wall of the upper conveying pipe and the outer wall of the lower conveying pipe are uniformly provided with a plurality of input nozzles at intervals, and the input nozzles positioned on the upper conveying pipe and the input nozzles positioned on the lower conveying pipe are uniformly distributed;
the water spraying pressure of the upper water spraying unit is larger than that of the lower water spraying unit.
Preferably, the spray head comprises a spray head body and an anti-blocking plate, the spray head body is welded on the pile shoe body, the interior of the spray head body is hollow, spray holes are formed in two sides of the spray head body, and the bottoms of the spray holes are tightly attached to the pile shoe body; the two anti-blocking plates are respectively arranged on two sides of the spray head body and cover the upper half part of the spray hole, and are obliquely arranged towards the middle part of the spray head body;
the upper spray pipe is communicated with the spray head positioned on the upper surface of the pile shoe body through the spray pipe fixing seat; the lower spray pipe is communicated with the spray head positioned on the lower surface of the pile shoe body through a spray pipe fixing seat.
Preferably, the input nozzle comprises a nozzle body, a sealing plug and a connecting chain, wherein the input end of the nozzle body is sealed through the sealing plug, and the sealing plug is connected with the outer wall of the nozzle body through the connecting chain.
Preferably, the pile shoe body is a hollow octagonal shell formed by welding a plurality of coamings, the cross section of the pile shoe body is an octagon formed by four first flat edges and four first oblique edges, and one first oblique edge is arranged between the two first flat edges;
the middle part of the upper surface of pile shoe body is equipped with regular hexagonal platform, two second plain edges that are opposite in the regular hexagonal platform are parallel with two first plain edges that are opposite of pile shoe body, the contained angle of two adjacent second hypotenuses is located the central line of two other first plain edges of pile shoe body in the regular hexagonal platform, the lower surface of pile shoe body is the conical surface.
Preferably, the pile shoe further comprises a central pipe and three pile leg foundations, wherein the central pipe is fixed in the center of the interior of the pile shoe body, and the central pipe vertically penetrates through the interior of the pile shoe body;
the three pile leg foundations are respectively arranged at the midpoints of three mutually non-adjacent sides of the regular hexagonal platform, and one end of each pile leg foundation vertically penetrates through the pile shoe body;
a plurality of partition boards are arranged in the pile shoe body, the partition boards penetrate through the pile shoe body up and down, corners of the pile shoe body are connected with a central pipe through the partition boards, the central pipe is connected with midpoints of four first flat edges of the pile shoe body through the partition boards, and a reflective partition board group extending from the central pipe to the side face of the pile shoe body is formed; the three pile leg foundations are connected with each other through the partition plates to form a triangular partition plate group; the partition boards are arranged along two second flat edges and four second oblique edges of the regular hexagonal platform to form a large hexagonal partition board group; and the inner part of the triangular partition plate group is provided with partition plates to form a small hexagonal partition plate group.
Preferably, the reflective baffle plate group, the triangular baffle plate group, the large hexagonal baffle plate group and the small hexagonal baffle plate group divide the interior of the pile shoe body into a plurality of cavities; the partition plate is provided with an operation through hole, and adjacent cavities are communicated through the operation through hole;
the upper annular main pipe and the lower annular main pipe are arranged between the large hexagonal partition plate group and the small hexagonal partition plate group in an up-down opposite mode, corresponding partition plates between the large hexagonal partition plate group and the small hexagonal partition plate group are provided with spray pipe installation through holes, and the upper annular main pipe and the lower annular main pipe penetrate through the spray pipe installation through holes.
Preferably, the pile shoe further comprises a plurality of vertical rib plates, and the plurality of vertical rib plates are arranged in the pile shoe body in an up-down opposite mode;
the baffle plates of the reflecting baffle plate group in the small hexagon baffle plate group are connected through the vertical rib plates to form a hexagon rib plate group;
the partition plates connected with the pile leg foundation between the large hexagonal partition plate group and the small hexagonal partition plate group are connected through the vertical rib plates to form a trapezoid rib plate group;
the rest of the partition plates between the large hexagonal partition plate group and the small hexagonal partition plate group are connected through the vertical rib plates to form a strip rib plate group;
the baffle plates of the reflective baffle plate group, which are positioned between the large hexagon baffle plate group and the side surface of the pile shoe body, are connected through the vertical rib plates to form a decagon rib plate group;
the large hexagon baffle plate group is connected with the side face of the pile shoe body through the vertical rib plates to form a radial rib plate group.
Preferably, the pile shoe further comprises a plurality of trapezoid rib plates, wherein the trapezoid rib plates are welded to the side wall of the pile shoe body, and two vertical rib plates which are opposite up and down in the radial rib plate group are connected through the trapezoid rib plates;
the triangular rib plates are welded on the included angles between the vertical rib plates of the radial rib plate group and the partition plates.
Preferably, the pile shoe further comprises a working inlet pipe, wherein the working inlet pipe is arranged on the regular hexagonal platform and is communicated with the inside of the pile shoe body.
Preferably, the truss type pile leg of the offshore pile shoe capable of being quickly drawn comprises a pile shoe body, a spraying mechanism and a pile leg body, wherein the pile leg body is a triangular truss formed by three chord rods, and the three chord rods and three pile leg foundations are connected into a whole;
the upper conveying pipe and the lower conveying pipe of the spraying mechanism are arranged on the outer side of the pile leg body in parallel, and the other end of the upper conveying pipe is connected with the other end of the lower conveying pipe.
The spraying mechanism is used for assisting in pulling out the pile shoe body, and quick pulling-up of the pile shoe body is realized. The upper spraying unit and the lower spraying unit are mutually independent, the pressure of high-pressure water in the upper spraying unit is higher than that in the lower spraying unit, because the upper surface of the pile shoe body is stressed by soil backlog action and seawater pressure, soil adhered to the upper surface of the pile shoe body is required to be washed away, the backlog soil is also required to be dispersed so as to reduce the soil backlog action, and the gravity applied when the upper spraying pipe upwards sprays is required to be overcome, so that the required pressure of the high-pressure water in the upper spraying unit is higher; the lower surface of the pile shoe body only needs to eliminate vacuum, and the gravity action can enhance the flow velocity when the lower spray pipe is sprayed downwards, so that the required pressure of high-pressure water in the lower spray unit is not too high, sand and stone roll on the lower surface of the pile shoe body easily if the pressure is too high, and the lower surface of the pile shoe body is worn.
Drawings
The present invention is further illustrated by the accompanying drawings, which are not to be construed as limiting the invention in any way.
FIG. 1 is a schematic view of a shoe construction according to one embodiment of the present invention;
FIG. 2 is a schematic diagram of a spray head according to one embodiment of the present invention;
FIG. 3 is a side view of a spray head body according to one embodiment of the present invention;
FIG. 4 is a schematic illustration of the configuration of an input nozzle in accordance with one embodiment of the present invention;
FIG. 5 is a top view of a shoe body according to one embodiment of the present invention;
FIG. 6 is a schematic cross-sectional view of a shoe body according to one embodiment of the present invention;
FIG. 7 is a schematic view of a longitudinal section of a shoe body according to one embodiment of the present invention;
FIG. 8 is a schematic view of a trapezoidal rib structure according to one embodiment of the present invention;
fig. 9 is a schematic view of a construction of a job entry tube according to one embodiment of the present invention.
Wherein: a pile shoe body 1; a spraying mechanism 2; an upper spraying unit 21; a lower spray unit 22; an upper conveying pipe 211; an upper ring main 212; an upper spray pipe 213; a lower conveying pipe 221; a lower ring main 222; a lower spray pipe 223; a spray head 24; an input nozzle 23; a head body 241; a blocking prevention plate 242; a spray tube holder 244; a nozzle 243; a nozzle body 231; a sealing plug 232; a link chain 233; a coaming 11; a first flat edge 12; a first oblique side 13; a regular hexagonal platform 15; a second flat edge 151; a second beveled edge 152; a central tube 3; a pile leg foundation 4; a partition plate 5; a corner 14; a reflective spacer group 5A; triangular partition plate groups 5B; a large hexagonal partition plate group 5C; a small hexagonal partition plate group 5D; a work through hole 51; a nozzle mounting through hole 52; vertical rib plates 6; hexagonal rib plate group 6A; a trapezoidal rib plate group 6B; a strip rib group 6C; a decagonal rib group 6D; radial rib groups 6E; trapezoidal rib plates 7; triangular rib plates 8; a work access pipe 9; a leg body 91; chord 92.
Detailed Description
The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.
The marine pile shoe capable of being quickly pulled up in the embodiment comprises a pile shoe body 1 and a spraying mechanism 2, as shown in fig. 1, wherein the spraying mechanism 2 is connected with the pile shoe body 1;
the spraying mechanism 2 comprises an upper spraying unit 21 and a lower spraying unit 22 which are mutually independent, the upper spraying unit 21 comprises an upper conveying pipe 211, an upper annular main pipe 212 and an upper spraying pipe 213, the lower spraying unit 22 comprises a lower conveying pipe 221, a lower annular main pipe 222 and a lower spraying pipe 223, the upper conveying pipe 211 and the lower conveying pipe 221 are arranged above the pile shoe body 1 in parallel, and one end of the upper conveying pipe 211 and one end of the lower conveying pipe 221 are inserted into the pile shoe body 1;
the upper annular main pipe 212 and the lower annular main pipe 222 are arranged in the pile shoe body 1, the upper annular main pipe 212 is arranged above the lower annular main pipe 222 in parallel, one end of the upper conveying pipe 211 is communicated with the upper annular main pipe 212, and one end of the lower conveying pipe 221 is communicated with the lower annular main pipe 222;
the spraying mechanism 2 further comprises a plurality of spraying heads 24 and a plurality of input nozzles 23, wherein the plurality of spraying heads 24 are radially distributed on the upper surface and the lower surface of the pile shoe body 1, the spraying heads 24 positioned on the upper surface of the pile shoe body 1 are communicated with the upper annular main pipe 212 through an upper spraying pipe 213, and the spraying heads 24 positioned on the lower surface of the pile shoe body 1 are communicated with the lower annular main pipe 222 through a lower spraying pipe 223;
a plurality of input nozzles 23 are uniformly arranged on the outer wall of the upper conveying pipe 211 and the outer wall of the lower conveying pipe 221 at intervals, and the input nozzles 23 positioned on the upper conveying pipe 211 and the input nozzles 23 positioned on the lower conveying pipe 221 are uniformly distributed;
the water pressure of the upper spray unit 21 is stronger than that of the lower spray unit 22.
In the marine pile shoe capable of being quickly pulled up, the pile shoe body 1 is a sealed pile shoe, namely the interior of the pile shoe body 1 is not communicated with the outside, so that the upper surface of the pile shoe body 1 can be subjected to soil backlog action and seawater pressure during pile pulling, and meanwhile, the lower surface of the pile shoe body 1 can generate vacuum, and the pile shoe body 1 is not easy to pull out. The spraying mechanism 2 is arranged for assisting in pulling out the pile shoe body 1, so that the pile shoe body 1 can be quickly pulled up.
When pile pulling, water and high-pressure gas are input into the upper conveying pipe 211 by the water supply pipe and the gas supply pipe on the ocean platform together to form high-pressure water, and the high-pressure water enters the upper annular main pipe 212 through the upper conveying pipe 211 under the action of gravity, flows to each upper spray pipe 213 and is sprayed out from each spray nozzle 24 on the upper surface of the pile shoe body 1 so as to wash away soil adhered to the upper surface of the pile shoe body 1; meanwhile, the water supply pipe and the air supply pipe on the ocean platform also supply water and high-pressure air to the lower conveying pipe 221 together to form high-pressure water, and the high-pressure water enters the lower annular main pipe 222 through the lower conveying pipe 221 under the action of gravity, flows to each lower spray pipe 223 and is sprayed out from each spray nozzle 24 on the lower surface of the pile shoe body 1 so as to eliminate vacuum. So that under the combined action of the upper spraying unit 21 and the lower spraying unit 22, the lifting power device on the ocean platform can rapidly pull out the pile shoe body 1 from the ocean floor.
The upper spray unit 21 and the lower spray unit 22 are independent, the pressure of the high-pressure water in the upper spray unit 21 is higher than that in the lower spray unit 22, because the upper surface of the pile shoe body 1 is subjected to soil backlog action and seawater pressure, and the stress is higher, so that the soil adhered to the upper surface of the pile shoe body 1 is washed away, the backlog action is also reduced, and the gravity applied when the upper spray pipe 213 upwards sprays is overcome, so that the required pressure of the high-pressure water in the upper spray unit 21 is higher; the lower surface of the shoe body 1 only needs to be relieved of vacuum, and the gravity action enhances the flow rate when the lower spray pipe 223 is sprayed downwards, so that the required pressure of the high pressure water in the lower spray unit 22 is not so great, and if the pressure is too great, sand is easily rolled on the lower surface of the shoe body 1, thereby wearing the lower surface of the shoe body 1.
The outer wall of the upper conveying pipe 211 and the outer wall of the lower conveying pipe 221 are uniformly provided with a plurality of input nozzles 23 at intervals, and as the distance between the pile shoe and the offshore platform is not completely the same during each operation, if only one input nozzle 23 is provided, the input nozzle 23 is likely to be positioned in the seawater, so that high-pressure water is difficult to be conveyed; a plurality of inlet nozzles 23 of different heights are thus provided so that one inlet nozzle 23 is always located on the ocean platform for the purpose of delivering high pressure water, regardless of the distance between the shoe and the ocean platform. The input nozzles 23 positioned on the upper conveying pipe 211 and the input nozzles 23 positioned on the lower conveying pipe 221 are distributed uniformly, so that the upper conveying pipe 211 and the lower conveying pipe 221 are ensured that one input nozzle 23 is positioned on the ocean platform, and the position adjustment of the water supply pipe and the air supply pipe due to the different heights of the input nozzle 23 positioned on the upper conveying pipe 211 and the input nozzle 23 positioned on the lower conveying pipe 221 is avoided, thereby bringing convenience to operators.
Preferably, as shown in fig. 2 and 3, the nozzle 24 includes a nozzle body 241 and an anti-blocking plate 242, the nozzle body 241 is welded on the pile shoe body 1, the interior of the nozzle body 241 is hollow, two sides of the nozzle body 241 are provided with nozzle holes 243, and the bottom of the nozzle holes 243 are closely attached to the pile shoe body 1; the two anti-blocking plates 242 are respectively installed at two sides of the nozzle body 241 and cover the upper half part of the nozzle 243, and the anti-blocking plates 242 are obliquely arranged towards the middle part of the nozzle body 241; the upper spray pipe 213 is communicated with the spray head 24 positioned on the upper surface of the pile shoe body 1 through the spray pipe fixing seat 244; the lower spray pipe 223 is communicated with the spray head 24 positioned on the lower surface of the pile shoe body 1 through a spray pipe fixing seat 244.
The high-pressure water enters the nozzle body 241 first and then is sprayed out through the spray holes 243 on both sides. The bottom of the spraying hole 243 is tightly attached to the shoe body 1, so that high-pressure water is sprayed out against the outer wall of the shoe body 1, thereby reducing the possibility that silt enters the nozzle body 241. The upper half of the nozzle 243 is covered by an anti-blocking plate 242, the anti-blocking plate 242 is inclined toward the middle of the nozzle body 241, which not only guides the high-pressure water on the upper part of the nozzle body 241 to spray out against the outer wall of the shoe body 1, but also prevents hard objects such as mud stones from blocking the nozzle 243. The spray pipe fixing base 244 serves to fix the upper spray pipe 213 or the lower spray pipe 223, preventing the upper spray pipe 213 or the lower spray pipe 223 from being separated from the spray head 24 under high pressure.
Preferably, as shown in fig. 4, the input nipple 23 includes a nipple body 231, a sealing plug 232, and a connection link 233, the input end of the nipple body 231 is sealed by the sealing plug 232, and the sealing plug 232 is connected to the outer wall of the nipple body 231 by the connection link 233. The input nozzle 23 for conveying high-pressure water is not required to be sealed by the sealing plug 232, and the sealing plug 232 is pulled out of the input nozzle 23 for conveying high-pressure water; the sealing plug 232 is connected with the outer wall of the nozzle body 231 through the connecting chain 233, so that the sealing plug 232 is prevented from being lost.
Preferably, as shown in fig. 5, the pile shoe body 1 is an octagonal casing welded by a plurality of coamings 11, the cross section of the pile shoe body 1 is an octagon formed by four first flat edges 12 and four first sloping edges 13, and one first sloping edge 13 is arranged between the two first flat edges 12;
the middle part of the upper surface of the pile shoe body 1 is provided with a regular hexagonal platform 15, two opposite second flat edges 151 in the regular hexagonal platform 15 are parallel to two opposite first flat edges 12 of the pile shoe body 1, an included angle of two adjacent second inclined edges 152 in the regular hexagonal platform 15 is positioned on the central line of the other two first flat edges 12 of the pile shoe body 1, and the lower surface of the pile shoe body 1 is a conical surface. The regular hexagonal platform 15 on the upper surface of the pile shoe body 1 is a working platform, so that a worker can maintain the pile shoe; the lower surface of the pile shoe body is a conical surface, so that the pressure intensity of the pile shoe body 1 when the pile shoe body is inserted into the seabed is improved, and the resistance of the pile shoe body 1 when the pile shoe body is inserted into the seabed is reduced. The pile shoe body 1 is an octagonal shell, has a larger supporting surface, improves the anti-skid capability and the pile leg bearing capability, and is suitable for operation on soft seabed.
Preferably, as shown in fig. 5 and 7, the pile shoe further comprises a central pipe 3 and three pile leg foundations 4, wherein the central pipe 3 is fixed at the center of the interior of the pile shoe body 1, and the central pipe 3 vertically penetrates through the interior of the pile shoe body 1; the three pile leg foundations 4 are respectively arranged at the midpoints of three mutually non-adjacent sides of the regular hexagonal platform 15, and one end of each pile leg foundation 4 vertically penetrates through the pile shoe body 1;
as shown in fig. 6, a plurality of partitions 5 are provided inside the pile shoe body 1, the partitions 5 penetrate the pile shoe body 1 up and down, corners 14 of the pile shoe body 1 are connected with the central pipe 3 through the partitions 5, and the central pipe 3 is connected with the middle points of four first flat edges 12 of the pile shoe body 1 through the partitions 5 to form a reflective partition group 5A extending from the central pipe 3 to the side surface of the pile shoe body 1; the three pile leg foundations 4 are connected with each other through the partition plates 5 to form a triangular partition plate group 5B; the partition plates 5 are arranged along two second flat edges 151 and four second inclined edges 152 of the regular hexagonal platform 15 to form a large hexagonal partition plate group 5C; and the partition plates 5 are arranged in the triangular partition plate group 5B to form a small hexagonal partition plate group 5D.
The center tube 3 and the three pile leg foundations 4 are used for supporting the pile shoe body 1, the three pile leg foundations 4 are arranged on the midpoints of three mutually non-adjacent sides of the regular hexagonal platform 15, the regular hexagonal platform 15 is supported so as to improve the bearing capacity of the regular hexagonal platform 15, and the pile leg foundations 4 are also used for installing pile legs. The pile shoe body 1 is internally provided with a plurality of baffle plates 5 to strengthen bearing capacity and compression resistance, the pile shoe body 1 bears a load of about 4000T and a pressure of 8 atmospheres at maximum, the reflective baffle plate group 5A connects the central tube 3 with the inner wall of the pile shoe body 1 and divides the interior of the pile shoe body 1 into 12 equal parts, so that the stress is effectively and uniformly dispersed; the triangular partition plate group 5B connects the three pile leg foundations 4 to disperse stress of the pile leg foundations 4 and strengthen the strength of the pile leg foundations 4 and prevent the pile leg foundations 4 from bending or shifting due to uneven stress; the large hexagon baffle plate group 5C is arranged at the edge of the regular hexagonal platform 15, plays a supporting role on the regular hexagonal platform 15, and prevents the edge of the regular hexagonal platform 15 from sinking under the seabed pressure; the small hexagonal partition plate group 5D is arranged in the regular hexagonal platform 15, so that the bearing capacity of the regular hexagonal platform 15 is enhanced, the internal stress of the regular hexagonal platform 15 is uniform, and the occurrence of sinking of the internal of the regular hexagonal platform 15 due to uneven stress is prevented. The reflective baffle plate group 5A, the triangular baffle plate group 5B, the large hexagonal baffle plate group 5C and the small hexagonal baffle plate group 5D are mutually staggered, so that the inside of the pile shoe body 1 is provided with a plurality of triangular structures, the bearing capacity for external load is improved, and the service life of the pile shoe is prolonged.
Preferably, as shown in fig. 6 to 8, the reflective spacer group 5A, the triangular spacer group 5B, the large hexagonal spacer group 5C and the small hexagonal spacer group 5D divide the interior of the shoe body 1 into a plurality of cavities; the partition board 5 is provided with a working through hole 51, and adjacent cavities are communicated through the working through hole 51; the upper annular main pipe 212 and the lower annular main pipe 222 are arranged between the large hexagonal partition plate group 5C and the small hexagonal partition plate group 5D in an up-down opposite manner, the corresponding partition plates 5 between the large hexagonal partition plate group 5C and the small hexagonal partition plate group 5D are provided with spray pipe installation through holes 52, and the upper annular main pipe 212 and the lower annular main pipe 222 penetrate through the spray pipe installation through holes 52.
The partition plate 5 is provided with a working through hole 51 so that workers can enter each cavity in the pile shoe body 1 to maintain. The upper ring main pipe 212 and the lower ring main pipe 222 are disposed between the large hexagonal partition plate group 5C and the small hexagonal partition plate group 5D in a vertically opposite manner, the reflective partition plate group 5A and the triangular partition plate group 5B pass through the region, the structural strength is high enough to bear the gravity of the upper ring main pipe 212 and the lower ring main pipe 222, and the stress of each partition plate 5 is relatively uniform.
Preferably, as shown in fig. 6, the pile shoe further comprises a plurality of vertical rib plates 6, wherein the plurality of vertical rib plates 6 are arranged in the pile shoe body 1 in a vertically opposite manner;
the baffle plates 5 of the reflective baffle plate group 5A in the small hexagonal baffle plate group 5D are connected through the vertical rib plates 6 to form a hexagonal rib plate group 6A;
the partition plates 5 connected with the pile leg foundations 4 between the large hexagonal partition plate group 5C and the small hexagonal partition plate group 5D are connected through the vertical rib plates 6 to form a trapezoid rib plate group 6B;
the rest of the clapboards between the large hexagon clapboard set 5C and the small hexagon clapboard set 5D are connected through the vertical rib plates 6 to form a strip rib plate set 6C;
the baffle plates 5 of the reflecting baffle plate group 5A, which are positioned between the large hexagon baffle plate group 5C and the side surface of the pile shoe body 1, are connected through the vertical rib plates 6 to form a decagon rib plate group 6D;
the large hexagon baffle plate group 5C is connected with the side face of the pile shoe body 1 through the vertical rib plates 6 to form a radial rib plate group 6E.
The vertical rib plates 6 are arranged in the pile shoe body 1 in a vertically opposite mode, so that the strength and rigidity of the pile shoe body 1 are improved, and stress is dispersed. The hexagonal rib plate group 6A connects the partition plates 5 of the reflective partition plate group 5A in the small hexagonal partition plate group 5D, so that the structural strength of the central area of the regular hexagonal platform 15 is enhanced, and the stress born by the central pipe 3 and the partition plates 5 in the area is effectively dispersed; the trapezoid rib plate group 6B strengthens the strength and rigidity of the pile leg foundation 4 and effectively disperses the stress suffered by the partition plates 5 around the pile leg foundation 4; the strip rib plate group 6C strengthens the structural strength of the surrounding area of the regular hexagonal platform 15 and effectively disperses the stress born by the large hexagonal partition plate group 5C and the small hexagonal partition plate group 5D; the decagonal rib plate group 6D strengthens the structural strength of the surrounding area of the pile shoe body 1 and effectively disperses the stress born by the reflective partition plate group 5A in the area; the radial rib plate group 6E strengthens the structural strength of the surrounding area of the pile shoe body 1, and effectively disperses the stress suffered by the large hexagonal partition plate group 5C and the side wall of the pile shoe body 1.
Preferably, as shown in fig. 7 and 8, the pile shoe further comprises a plurality of trapezoidal rib plates 7, wherein the trapezoidal rib plates 7 are welded to the side wall of the pile shoe body 1, and two vertical rib plates 6 which are opposite to each other up and down in the radial rib plate group 6E are connected through the trapezoidal rib plates 7; the novel corrugated plate structure further comprises a plurality of triangular rib plates 8, and the triangular rib plates 8 are welded on the included angle between the vertical rib plates 6 of the radial rib plate group 6E and the partition plate 5. The trapezoidal rib plates 7 connect the side wall of the pile shoe body 1 and the two vertical rib plates 6 which are opposite up and down into a whole, play a role in supporting and reinforcing rigidity of the pile shoe body 1, enable stress received by the two vertical rib plates 6 which are opposite up and down to be dispersed uniformly, and improve structural strength. The triangular rib plates 8 are arranged on the included angle between the vertical rib plates 6 and the partition plates 5, and play a role in supporting and stress dispersing the vertical rib plates 6.
Preferably, as shown in fig. 9, the pile shoe further comprises a working inlet pipe 9, wherein the working inlet pipe 9 is arranged on the regular hexagonal platform 15 and is communicated with the interior of the pile shoe body 1. Through which working access tube 9 the staff can access the interior of the shoe body 1 for maintenance.
Preferably, as shown in fig. 1, the truss type pile leg using the quick-drawing offshore pile shoe comprises a pile shoe body 1, a spraying mechanism 2 and a pile leg body 91, wherein the pile leg body 91 is a triangular truss consisting of three chords 92, and the three chords 92 and three pile leg foundations 4 are connected into a whole; the upper conveying pipe 211 and the lower conveying pipe 221 of the spraying mechanism 2 are arranged outside the pile leg body 91 in parallel, and the other end of the upper conveying pipe 211 and the other end of the lower conveying pipe 221 are connected with the pile leg body 91.
The upper and lower delivery pipes 211 and 221 extend into the inside of the pile shoe body 1 along the outer side of the leg body 91 so that water and high pressure gas are supplied from the water supply pipe and the gas supply pipe on the ocean platform to the upper and lower delivery pipes 211 and 221. The truss type pile leg is provided with the spraying mechanism 2, when pile pulling is carried out, water and high-pressure gas are commonly input into the upper conveying pipe 211 through the water supply pipe and the air supply pipe on the ocean platform to form high-pressure water, the high-pressure water enters the upper annular main pipe 212 through the upper conveying pipe 211 under the action of gravity, then flows to each upper spraying pipe 213 and is sprayed out from each spray nozzle 24 on the upper surface of the pile shoe body 1 so as to wash away soil adhered to the upper surface of the pile shoe body 1; meanwhile, the water supply pipe and the air supply pipe on the ocean platform also supply water and high-pressure air to the lower conveying pipe 221 together to form high-pressure water, and the high-pressure water enters the lower annular main pipe 222 through the lower conveying pipe 221 under the action of gravity, flows to each lower spray pipe 223 and is sprayed out from each spray nozzle 24 on the lower surface of the pile shoe body 1 so as to eliminate vacuum. Therefore, under the combined action of the upper spraying unit 21 and the lower spraying unit 22, the lifting power device on the ocean platform can rapidly pull out the pile shoe body 1 from the ocean floor, so that the purpose of rapidly lifting the pile leg is realized.
The technical principle of the present invention is described above in connection with the specific embodiments. The description is made for the purpose of illustrating the general principles of the invention and should not be taken in any way as limiting the scope of the invention. Other embodiments of the invention will be apparent to those skilled in the art from consideration of this specification without undue burden.
Claims (7)
1. The utility model provides a but marine pile shoe of quick drawing, includes pile shoe body and spouts towards mechanism, it connects its characterized in that to spout towards mechanism and pile shoe body:
the upper spraying and flushing unit comprises an upper conveying pipe, an upper annular main pipe and an upper spraying and flushing pipe, the lower spraying and flushing unit comprises a lower conveying pipe, a lower annular main pipe and a lower spraying and flushing pipe, the upper conveying pipe and the lower conveying pipe are arranged above the pile shoe body in parallel, and one end of the upper conveying pipe and one end of the lower conveying pipe are inserted into the pile shoe body;
the upper annular main pipe and the lower annular main pipe are arranged in the pile shoe body, the upper annular main pipe is arranged above the lower annular main pipe in parallel, one end of the upper conveying pipe is communicated with the upper annular main pipe, and one end of the lower conveying pipe is communicated with the lower annular main pipe;
the spraying mechanism further comprises a plurality of spraying heads and a plurality of input nozzles, the plurality of spraying heads which are radially distributed are arranged on the upper surface and the lower surface of the pile shoe body, the spraying heads positioned on the upper surface of the pile shoe body are communicated with the upper annular main pipe through an upper spraying pipe, and the spraying heads positioned on the lower surface of the pile shoe body are communicated with the lower annular main pipe through a lower spraying pipe;
the outer wall of the upper conveying pipe and the outer wall of the lower conveying pipe are uniformly provided with a plurality of input nozzles at intervals, and the input nozzles positioned on the upper conveying pipe and the input nozzles positioned on the lower conveying pipe are uniformly distributed;
the water spraying pressure of the upper water spraying unit is higher than that of the lower water spraying unit;
the pile shoe body is a hollow octagonal shell formed by welding a plurality of coamings, the cross section of the pile shoe body is an octagon formed by four first flat edges and four first bevel edges, and one first bevel edge is arranged between the two first flat edges;
the middle part of the upper surface of the pile shoe body is provided with a regular hexagonal platform, two opposite second flat edges in the regular hexagonal platform are parallel to two opposite first flat edges of the pile shoe body, an included angle of two adjacent second oblique edges in the regular hexagonal platform is positioned on the central line of the other two first flat edges of the pile shoe body, and the lower surface of the pile shoe body is a conical surface;
the spray head comprises a spray head body and an anti-blocking plate, the spray head body is welded on the pile shoe body, the interior of the spray head body is hollow, spray holes are formed in two sides of the spray head body, and the bottoms of the spray holes are tightly attached to the pile shoe body; the two anti-blocking plates are respectively arranged on two sides of the spray head body and cover the upper half part of the spray hole, and are obliquely arranged towards the middle part of the spray head body;
the upper spray pipe is communicated with the spray head positioned on the upper surface of the pile shoe body through the spray pipe fixing seat; the lower spray pipe is communicated with the spray head positioned on the lower surface of the pile shoe body through a spray pipe fixing seat;
the pile shoe comprises a pile shoe body, a central pipe and three pile leg foundations, wherein the central pipe is fixed in the center of the interior of the pile shoe body, and the central pipe vertically penetrates through the interior of the pile shoe body;
the three pile leg foundations are respectively arranged at the midpoints of three mutually non-adjacent sides of the regular hexagonal platform, and one end of each pile leg foundation vertically penetrates through the pile shoe body;
a plurality of partition boards are arranged in the pile shoe body, the partition boards penetrate through the pile shoe body up and down, corners of the pile shoe body are connected with a central pipe through the partition boards, the central pipe is connected with midpoints of four first flat edges of the pile shoe body through the partition boards, and a reflective partition board group extending from the central pipe to the side face of the pile shoe body is formed; the three pile leg foundations are connected with each other through the partition plates to form a triangular partition plate group; the partition boards are arranged along two second flat edges and four second oblique edges of the regular hexagonal platform to form a large hexagonal partition board group; and the inner part of the triangular partition plate group is provided with partition plates to form a small hexagonal partition plate group.
2. The quick-rise offshore pile shoe of claim 1, wherein: the input nozzle comprises a nozzle body, a sealing plug and a connecting chain, wherein the input end of the nozzle body is sealed through the sealing plug, and the sealing plug is connected with the outer wall of the nozzle body through the connecting chain.
3. The quick-rise offshore pile shoe of claim 1, wherein: the reflective baffle plate group, the triangular baffle plate group, the large hexagonal baffle plate group and the small hexagonal baffle plate group divide the interior of the pile shoe body into a plurality of cavities; the partition plate is provided with an operation through hole, and adjacent cavities are communicated through the operation through hole;
the upper annular main pipe and the lower annular main pipe are arranged between the large hexagonal partition plate group and the small hexagonal partition plate group in an up-down opposite mode, corresponding partition plates between the large hexagonal partition plate group and the small hexagonal partition plate group are provided with spray pipe installation through holes, and the upper annular main pipe and the lower annular main pipe penetrate through the spray pipe installation through holes.
4. The quick-rise offshore pile shoe of claim 1, wherein: the pile shoe further comprises a plurality of vertical rib plates, and the vertical rib plates are arranged in the pile shoe body in an up-down opposite mode;
the baffle plates of the reflecting baffle plate group in the small hexagon baffle plate group are connected through the vertical rib plates to form a hexagon rib plate group;
the partition plates connected with the pile leg foundation between the large hexagonal partition plate group and the small hexagonal partition plate group are connected through the vertical rib plates to form a trapezoid rib plate group;
the rest of the partition plates between the large hexagonal partition plate group and the small hexagonal partition plate group are connected through the vertical rib plates to form a strip rib plate group;
the baffle plates of the reflective baffle plate group, which are positioned between the large hexagon baffle plate group and the side surface of the pile shoe body, are connected through the vertical rib plates to form a decagon rib plate group;
the large hexagon baffle plate group is connected with the side face of the pile shoe body through the vertical rib plates to form a radial rib plate group.
5. The quick-rise offshore pile shoe of claim 4, wherein: the pile shoe comprises a pile shoe body, a radial rib plate group, a plurality of trapezoidal rib plates, a plurality of support plates and a plurality of support plates, wherein the trapezoidal rib plates are welded on the side wall of the pile shoe body, and two vertical rib plates which are opposite up and down in the radial rib plate group are connected through the trapezoidal rib plates;
the triangular rib plates are welded on the included angles between the vertical rib plates of the radial rib plate group and the partition plates.
6. The quick-rise offshore pile shoe of claim 1, wherein: the pile shoe further comprises an operation inlet pipe, wherein the operation inlet pipe is arranged on the regular hexagonal platform and is communicated with the inside of the pile shoe body.
7. Truss type pile leg using the quick-pull-up offshore pile shoe according to claim 1, characterized in that: the pile leg comprises a pile shoe body, a spraying mechanism and a pile leg body, wherein the pile leg body is a triangular truss consisting of three chord rods, and the three chord rods and three pile leg foundations are connected into a whole;
the upper conveying pipe and the lower conveying pipe of the spraying mechanism are arranged on the outer side of the pile leg body in parallel, and the other end of the upper conveying pipe is connected with the other end of the lower conveying pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711142508.5A CN107740409B (en) | 2017-11-17 | 2017-11-17 | Offshore pile shoe capable of being quickly pulled up and truss type pile leg using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711142508.5A CN107740409B (en) | 2017-11-17 | 2017-11-17 | Offshore pile shoe capable of being quickly pulled up and truss type pile leg using same |
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| Publication Number | Publication Date |
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| CN107740409A CN107740409A (en) | 2018-02-27 |
| CN107740409B true CN107740409B (en) | 2023-08-29 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101126235A (en) * | 2007-09-07 | 2008-02-20 | 霍刚 | Petroleum platform pile shoe lifting auxiliary system |
| CN104594293A (en) * | 2015-01-08 | 2015-05-06 | 中交上海三航科学研究院有限公司 | Hydraulic pull reduction system on jack-up platform ship supporting pile leg |
| CN104790398A (en) * | 2015-02-15 | 2015-07-22 | 金海重工股份有限公司 | Self-elevating type ocean platform safe and controllable ejection system |
| CN105002875A (en) * | 2015-08-07 | 2015-10-28 | 江苏蓝潮海洋风电工程建设有限公司 | High-pressure flushing device for offshore platform pile leg |
| CN106869100A (en) * | 2017-02-16 | 2017-06-20 | 广东精铟海洋工程股份有限公司 | A kind of shoe with elimination seabed attachment function |
| CN207419464U (en) * | 2017-11-17 | 2018-05-29 | 佛山市榕岸海洋工程装备有限公司 | A kind of marine shoe that can quickly smoke and use its truss framed leg |
-
2017
- 2017-11-17 CN CN201711142508.5A patent/CN107740409B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101126235A (en) * | 2007-09-07 | 2008-02-20 | 霍刚 | Petroleum platform pile shoe lifting auxiliary system |
| CN104594293A (en) * | 2015-01-08 | 2015-05-06 | 中交上海三航科学研究院有限公司 | Hydraulic pull reduction system on jack-up platform ship supporting pile leg |
| CN104790398A (en) * | 2015-02-15 | 2015-07-22 | 金海重工股份有限公司 | Self-elevating type ocean platform safe and controllable ejection system |
| CN105002875A (en) * | 2015-08-07 | 2015-10-28 | 江苏蓝潮海洋风电工程建设有限公司 | High-pressure flushing device for offshore platform pile leg |
| CN106869100A (en) * | 2017-02-16 | 2017-06-20 | 广东精铟海洋工程股份有限公司 | A kind of shoe with elimination seabed attachment function |
| CN207419464U (en) * | 2017-11-17 | 2018-05-29 | 佛山市榕岸海洋工程装备有限公司 | A kind of marine shoe that can quickly smoke and use its truss framed leg |
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|---|---|
| CN107740409A (en) | 2018-02-27 |
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