CN110952589A - Gravity type caisson foundation installed by injecting high-pressure water into mud through anchor teeth - Google Patents
Gravity type caisson foundation installed by injecting high-pressure water into mud through anchor teeth Download PDFInfo
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- CN110952589A CN110952589A CN201911224460.1A CN201911224460A CN110952589A CN 110952589 A CN110952589 A CN 110952589A CN 201911224460 A CN201911224460 A CN 201911224460A CN 110952589 A CN110952589 A CN 110952589A
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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
- E02D27/32—Foundations for special purposes
- E02D27/52—Submerged foundations, i.e. submerged in open water
- E02D27/525—Submerged foundations, i.e. submerged in open water using elements penetrating the underwater ground
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D23/00—Caissons; Construction or placing of caissons
- E02D23/08—Lowering or sinking caissons
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- General Life Sciences & Earth Sciences (AREA)
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Abstract
The invention discloses a gravity type caisson foundation installed by injecting high-pressure water into mud by anchor teeth, which comprises a tooth anchor concrete main body and a plurality of anchor teeth, wherein a water injection cavity is formed in the top of the tooth anchor concrete main body, a plurality of cavities are symmetrically formed in the tooth anchor concrete main body, tooth anchors are arranged in the cavities in a one-to-one correspondence manner, the cavities are communicated with each other and are communicated with the water injection cavity; grooves are symmetrically arranged on the tooth anchor concrete main body at the lower section of the cavity, a high-strength spring and a fixing bolt are sequentially horizontally arranged in the grooves from inside to outside, and the high-strength spring is in a compressed state; the upper part of the tooth anchor is symmetrically provided with two anchor tooth cavities, the side surface is provided with anchor teeth, and the bottom is an anchor tooth tip part; the center of the tooth anchor is also provided with an anchor tooth high-pressure water channel; the top of the tooth anchor concrete main body is symmetrically provided with lifting lugs, and the tooth anchor concrete main body can be moved to an appointed installation position through the lifting lugs. The invention reduces the installation difficulty in the actual construction of the tooth anchor, improves the bearing capacity of the tooth anchor and has important application significance for popularizing the application of the tooth anchor in engineering.
Description
Technical Field
The invention relates to a gravity type caisson foundation installed by injecting high-pressure water into mud through anchor teeth.
Background
Since the 21 st century, mankind entered the phase of large-scale exploitation of the ocean, which has a more important role in the national economic development landscape and in the open world. Therefore, various offshore structures in coastal areas of China develop rapidly like bamboo shoots in spring after rain.
The most critical to offshore structures such as offshore wind turbines, offshore platforms, etc. is the stability and safety of the offshore structures during operation, and the anchoring of the structures is a decisive factor for safety. Various types of anchoring facilities such as tooth anchors, fish anchors, flat plate anchors, drag anchors, etc. are currently mainly studied.
Most of the existing tooth anchors are inserted into the soil body of the seabed through dead weight and kinetic energy after freely falling at the sea surface, and the penetration depth in the seabed cannot meet the design requirement.
The current state of the relevant research is as follows:
(1) a novel double-tooth anchor is introduced in chinese patent with application number CN201420038427.6, which comprises an anchor rod and two anchor teeth fixed at the bottom end of the anchor rod, wherein the two anchor teeth are symmetrically arranged, a support rod is fixed at the bottom end of the anchor rod, the support rod is perpendicular to the anchor rod, and the support rod is perpendicular to a connecting line between the two anchor teeth; the winch is characterized in that a first steel wire rope is fixedly connected to the top end of the anchor rod, a second steel wire rope is fixedly connected to the bottom end of the anchor rod, and the first steel wire rope and the second steel wire rope are wound on the winch respectively. However, the patent does not guarantee that the tooth anchor meets the design anchoring requirements during the anchoring process.
(2) The chinese patent with application number CN201430016115.0 introduces a new type of tridentate anchor, which adopts the design of tridentate anchor in appearance shape, and the main function is for positioning ships at sea, but the anchoring mode of the anchor of this patent still penetrates into the soil body through the dead weight of the anchor body for throwing at the sea surface, so this patent can not guarantee the depth of inserting into the soil body in anchoring.
(3) Chinese patent application No. CN201810699908.4 describes a torpedo anchor formed by connecting segments, which includes several segments of anchor bodies; the interior of the anchor body is hollow, a plurality of tail wings are welded on the outer side of the anchor body, bayonet ports with reserved holes are arranged on the end surfaces of the anchor bodies which are connected with each other, and a spherical concave surface is arranged on one side of each bayonet port positioned in the anchor body; during the equipment, connect each section anchor body with the connecting rod of spherical end in both ends, the spherical end at connecting rod both ends inlays respectively in the inside of adjacent each section anchor body, and the connecting rod passes through the preformed hole on adjacent each section anchor body terminal surface bayonet socket, and this patent is novel in design, but the application intensity can not be guaranteed to the fish thunder anchor of concatenation in the use.
The traditional anchor body can only be thrown down at the sea surface and falls to the surface of the seabed through self weight to penetrate into soil, and the anchoring mode can not ensure that the anchoring strength meets the design requirement.
Therefore, the invention provides a gravity type caisson foundation which is installed by injecting high-pressure water into mud by using anchor teeth. The invention pushes the tooth anchor to penetrate into the seabed soil body through high-pressure water pressure, ensures the depth of the tooth anchor penetrating into the soil body and the anchoring strength, and has the safety and stability for anchoring in practical engineering.
Disclosure of Invention
Based on the defects in the prior art, the invention discloses a gravity type caisson foundation installed by injecting high-pressure water into mud by using anchor teeth. The gravity type caisson foundation can penetrate the anchor teeth into the seabed deep enough to improve the bearing capacity of the anchor body; in addition, the high-pressure water adopted in the elongation process of the anchor tooth penetrates through the anchor tooth high-pressure water channel, the strength is weakened by scouring in the seabed soil body at the lower end of the tip part of the anchor tooth, and the resistance of the penetration end of the anchor tooth and the side friction resistance are reduced, so that the anchor tooth is easier to insert into the soil body. The invention changes the non-telescopic property of the anchor teeth of the traditional anchor teeth, and combines a high-pressure water installation method, thereby reducing the installation difficulty in the actual construction of the anchor teeth and improving the bearing capacity of the anchor teeth, and having important application significance for popularizing the application of the anchor teeth in the engineering.
The invention adopts the following technical scheme:
a gravity type caisson foundation installed by injecting high-pressure water into mud by adopting anchor teeth comprises a tooth anchor concrete main body and a plurality of tooth anchors;
the top of the tooth anchor concrete main body is provided with a water injection cavity, a plurality of cavities are symmetrically arranged in the tooth anchor concrete main body, the tooth anchors are correspondingly arranged in the cavities one by one, the cavities are mutually communicated and are mutually communicated with the water injection cavity; the tooth anchor concrete body of the lower section of each cavity is also symmetrically provided with grooves communicated with the corresponding cavity, the grooves are internally and horizontally provided with high-strength springs and fixing bolts from inside to outside, the high-strength springs are in a compressed state, and the transverse elastic coefficient of the high-strength springs can reach 78500KN/mm2The fixing bolt can be pushed to move transversely; the upper part of the tooth anchor is symmetrically provided with two anchor tooth cavities, and when the tooth anchor moves downwards until the fixing bolt enters the anchor tooth cavities, the tooth anchor can be prevented from continuously moving downwards; the side surface of the tooth anchor is vertically and uniformly provided with anchor teeth, and the bottom of the tooth anchor is the tip part of the anchor teeth; the anchor teeth are conical and the tip parts of the anchor teeth are downward; the center of the tooth anchor is also provided with an anchor tooth high-pressure water channel which is communicated with the water injection cavity and is used for ejecting high-pressure water injected from the upper part from the lower end of the tooth anchor;
the top of the tooth anchor concrete main body is symmetrically provided with lifting lugs, and the tooth anchor concrete main body can be moved to an appointed installation position through the lifting lugs.
In the technical scheme, a water injection cavity wall is arranged above the water injection cavity, and the water injection cavity wall have the same cross section size.
Further, the installation process of the gravity type caisson foundation is as follows:
moving the gravity type caisson foundation to an appointed installation position through a lifting lug, vertically placing the gravity type caisson foundation on the surface of a seabed, and pressing a tooth anchor concrete main body to a certain depth on the surface of the seabed through self weight; the high-pressure water injection pipe is fixedly connected to the wall of the water injection cavity, and the connection part is sealed while high-pressure water is injected; the high-pressure water injected into the water injection cavity penetrates through the anchor tooth high-pressure water channel in the tooth anchor and flows out from the tip part, so that a seabed weakened area is formed below the tooth anchor, the soil body strength of the seabed weakened area is weakened, and the tooth anchor can conveniently penetrate into a specified depth; meanwhile, high-pressure water at the top pushes the tooth anchor to move downwards to penetrate into the soil body through pressure, and when the tooth anchor moves downwards until the height of the anchor tooth cavity is consistent with that of the groove, the high-strength spring pushes the fixing bolt to move transversely and insert into the anchor tooth cavity to prevent the tooth anchor from continuing to move vertically and form an integral bearing capacity with the tooth anchor concrete body; and finally, stopping injecting the high-pressure water, injecting concrete slurry through a high-pressure water injection pipe, maintaining, and pouring the water injection cavity into an entity.
Furthermore, after the gravity type caisson foundation is installed, the lifting lugs are connected with the anchor chains, so that the lifting lugs are connected with a structure needing to be anchored on the upper portion of the sea surface, and the anchoring effect is achieved.
The invention is used for the installation and normal use of the anchor body of various types of seabed soil bodies, reduces the installation difficulty of the tooth anchor in actual construction and improves the bearing capacity of the tooth anchor.
The invention has the following advantages:
1. the invention can flexibly move the gravity type caisson foundation through the large mechanical suspension lifting lug and carry out construction at the designed designated position.
2. The invention has simple structural design, low prefabrication difficulty of the tooth anchor concrete main body and convenient popularization.
3. According to the invention, the penetration of the anchor in the seabed is realized by adopting the anchor and the anchor is pushed by adopting high-pressure water, so that the penetration depth of the anchor can be controlled and the anchoring strength of the anchor can be ensured to be exerted.
4. According to the invention, after the tooth anchor is inserted into the soil body, concrete grout is injected into the tooth anchor concrete main body, and after maintenance is finished, the whole foundation becomes a concrete entity, so that the self weight of the foundation is increased, and the bearing capacity of the foundation is improved.
Drawings
FIG. 1 is a sectional view of a first stage of installation of the retractable tooth anchor;
FIG. 2 is a sectional view of the retractable tooth anchor in a second stage of installation;
FIG. 3 is a third stage sectional view of the installation of the retractable tooth anchor;
FIG. 4 is a sectional view of a fourth stage of installation of the retractable tooth anchor;
FIG. 5 is a detailed cross-sectional view of the tooth anchor;
FIG. 6 is a distribution view of the arrangement of the tooth anchors (bottom view);
the anchor chain comprises 1, seawater, 2, a seabed, 3, an anchor chain, 4, a lifting lug, 5, an anchor chain fixing lock, 6, a tooth anchor concrete main body, 7, a tooth anchor, 8, an anchor tooth cavity, 9, an anchor tooth, 10, an anchor tooth tip, 11, a water injection cavity, 12, a water injection cavity wall, 13, an anchor tooth high-pressure water channel, 14, a fixing bolt, 15, a high-strength spring, 16, high-pressure water, 17, a high-pressure water injection pipe, 18, a seabed weakening area and 19, concrete slurry
Detailed Description
The invention is further illustrated with reference to the accompanying drawings and specific examples.
Fig. 1 shows a gravity caisson foundation installed by injecting high-pressure water into mud using anchor teeth. The foundation comprises a tooth anchor concrete main body 6 and a plurality of tooth anchors 7; the top of the tooth anchor concrete main body 6 is provided with a water injection cavity 11, a plurality of cavities are symmetrically arranged inside the tooth anchor concrete main body, the tooth anchors 7 are correspondingly positioned in the cavities one by one, the cavities are communicated with each other and are communicated with the water injection cavity 11; the tooth anchor concrete main body 6 of the lower section of the cavity is also symmetrically provided with grooves communicated with the cavity, a high-strength spring 15 and a fixing bolt 14 are horizontally arranged in the grooves, the high-strength spring 15 is positioned at the inner side of the groove, and the transverse elastic coefficient of the high-strength spring can reach 78500KN/mm2The fixing bolt 14 can be pushed to move transversely; the upper part of the tooth anchor 7 is symmetrically provided with two anchor tooth cavities 8, and when the tooth anchor 7 moves downwards until the fixing bolt 14 enters the anchor tooth cavities 8, the tooth anchor 7 can be prevented from continuously moving downwards; the side surface of the tooth anchor 7 is vertically and evenly provided with anchor teeth 9, and the bottom of the tooth anchor is provided with an anchor tooth tip part 10; the anchor teeth 9 are conical, the tip parts of the anchor teeth are downward, and the center of the tooth anchor 7 is also provided with an anchor tooth high-pressure water channel 13 which is communicated with the water injection cavity 11 and is used for ejecting high-pressure water 16 injected from the upper part from the lower end of the tooth anchor 7; the top of the tooth anchor concrete main body 6 is symmetrically provided with lifting lugs 4, and the tooth anchor concrete main body 6 can be moved to an appointed installation position through the lifting lugs 4. A water injection cavity wall is arranged above the water injection cavity 1112, and the two cross-sectional dimensions are the same.
The device is used for the installation and normal use of the anchor body of various types of seabed soil bodies, reduces the installation difficulty of the tooth anchor 7 in actual construction and improves the bearing capacity of the tooth anchor 7. The whole installation process can be described as that the tooth anchor concrete body 6 is moved to a specified installation position through the lifting lugs 4, vertically placed on the surface of the seabed 2, and pressed down to a certain depth on the surface of the seabed 2 through self weight. The high-pressure water injection pipe 17 is fixedly and closely connected with the water injection cavity wall 12, and the connection part is sealed when the high-pressure water 16 is injected. The high-pressure water 16 injected into the water injection cavity 11 passes through the anchor tooth high-pressure water channel 13 inside the anchor tooth 7 and flows out from the tip part, so that the strength of the soil body at the lower part of the anchor tooth 9 is weakened, and the anchor tooth 9 can conveniently penetrate into a specified depth. Meanwhile, high-pressure water 16 at the top pushes the anchor teeth 9 to move downwards to penetrate into the soil body through pressure, and when the anchor teeth reach the specified depth, the high-strength springs 15 at the side parts of the tooth anchors 7 push the fixing bolts 14 to move transversely and insert into the anchor tooth cavities 8 in the tooth anchors 7 to prevent the anchor teeth 9 from moving vertically continuously, and the anchor teeth and the concrete body 6 of the tooth anchors form a whole to exert bearing capacity. Finally the water-injected cavity is poured into a solid body by injecting concrete grout 19 and curing.
Specifically, as shown in fig. 1 to 4, a specific embodiment is as follows:
the installation process of the gravity type caisson foundation installed by injecting high-pressure water into mud by the anchor teeth can be roughly divided into four stages. In the first stage, the gravity type caisson foundation is hoisted and positioned, and the positioning accuracy and the placing level ensure the safety and the stability of the foundation in the later use process; in the second stage, high-pressure water 16 is injected into the water injection cavity 11 to weaken the soil body at the lower part of the anchor teeth 6 and perform the penetration of the tooth anchors 7; in the third stage, under the pushing of high-pressure water 16, the anchor teeth 9 penetrate downwards to the designated positions in the soil body, the high-strength spring 15 pushes the fixing bolt 14 to be inserted into the anchor tooth cavity 8, the tooth anchors 7 are fixed and limit vertical displacement, and the tooth anchors 7 and the concrete main body 6 of the mixed tooth anchor form a whole; in the fourth stage, the injection of the high-pressure water 16 is stopped, and the concrete slurry 19 is injected through the high-pressure water injection pipe 17 to perform maintenance, thereby making the gravity type caisson foundation solid.
In the first stage, in practical engineering, the gravity caisson foundation with a large volume may incline and be unstable during the hoisting and placing process because the seabed 2 is complex and is often not flat. Move to the appointed mounted position of design through lug 4, slowly descend to seabed 2 surface in sea water 1, tooth anchor concrete main part 6 can be impressed the seabed 2 certain degree of depth under the dead weight, this is favorable to guaranteeing safety in following construction.
In the second stage, high pressure water 16 fills the entire water injection cavity 11 and is injected from the tip of the dental anchor 7 through the anchor tooth high pressure water passage 13. The injection of high pressure water 16 into the water injection cavity 11 mainly serves two purposes: 1, high-pressure water 16 which is ejected from a tooth tip 10 and has high flow speed and high pressure can weaken the soil body near the anchor teeth 9, so that the anchor teeth 9 can penetrate downwards conveniently; 2, the anchor tooth high-pressure water channel 13 is designed to be thin, so that high-pressure water 16 with enough pressure can act on the upper surface of the anchor tooth 7 to form a vertical downward thrust of a numerical value to push the penetration of the anchor tooth 9.
In the third stage, when the anchor teeth 9 are penetrated into the soil body to a specified depth, the high-strength springs 15 in the grooves on the two sides of the cavity push the fixing bolts 14 to be inserted into the anchor tooth cavities 8 which are preset on the anchor tooth concrete main body 6. The length of the fixing bolt 14 is greater than the depth of the anchor tooth cavity 8, so that the fixing bolt will cross the anchor tooth cavity 8 and the groove of the anchor tooth concrete body 6, and simultaneously limit the vertical displacement of the anchor tooth 7 under the pushing of the high-strength spring 15. The tooth anchor 7 can not generate vertical relative movement relative to the tooth anchor concrete body 6 any longer, and the two form a whole to exert bearing capacity together.
And in the fourth stage, after the tooth anchor 7 is fixed, concrete slurry 19 is injected into the water injection cavity 11 through the high-pressure water injection pipe 17 and is maintained for a certain number of days, and finally the foundation becomes a solid body. The increase of the base dead weight also improves the bearing capacity and stability of the tooth anchor 7.
The lifting lug 4 of the invention mainly plays two roles: 1. in the hoisting and positioning stage of the gravity type caisson foundation, the caisson foundation is hoisted to a specified construction and installation position through the lifting lugs 4 and is vertically and slowly lowered to the surface of the seabed 2; 2. after all the constructions are finished, the anchor chain 3 passes through the lifting lug 4 to be connected with a structure needing anchoring on the upper part of the sea surface, and the anchoring effect is played.
It is worth noting that the main bearing capacity of the foundation of the invention is exerted by inserting the tooth anchor into the seabed, therefore, the invention is mainly suitable for the sandy seabed or the silty seabed with higher sensitivity. However, the anchor teeth cannot be inserted into the seabed to exert a bearing force in the case of a rocky seabed, and thus, the anchor teeth are not suitable for the rocky seabed.
In this embodiment, the tooth anchor concrete body 6 has 25 tooth anchors 7, which are arranged in 5 × 5 rows, and can provide sufficient uplift bearing capacity and overturn bearing capacity during normal use.
The following takes the installation of the foundation under the engineering condition of the sandy seabed as an example, briefly describing a specific process of the construction adopting the invention:
1. the gravity type caisson foundation is hoisted to a designed designated position by using marine large-scale hoisting machinery through a hanging lug, the surface of the seabed is vertically and slowly placed, and the gravity type caisson foundation penetrates into the seabed by a certain depth under the action of self weight.
2. And a high-pressure water injection pipe connected with the wall of the water injection cavity injects high-pressure water into the water injection cavity, and the tooth anchor penetrates into the sand seabed weakened in strength.
3. After the tooth anchor descends to a specified depth, the high-strength spring pushes the fixing bolt to be inserted into the cavity of the anchor tooth, and the tooth anchor 7 and the tooth anchor concrete body 6 are integrated.
4. And concrete slurry is injected into the water injection cavity through the high-pressure water injection pipe, and after the concrete slurry is cured, the gravity type caisson foundation becomes an entity.
5. The anchor chain is connected with a structure needing anchoring near the sea surface and the lifting lug, and the anchoring capability of the tooth anchor is exerted.
Claims (4)
1. A gravity type caisson foundation installed by injecting high-pressure water into mud by using anchor teeth is characterized by comprising a tooth anchor concrete main body (6) and a plurality of tooth anchors (7);
the top of the tooth anchor concrete main body (6) is provided with a water injection cavity (11), a plurality of cavities are symmetrically arranged inside the tooth anchor concrete main body, and the tooth anchor (7) IThe water injection cavity (11) is correspondingly arranged in the cavities, the cavities are communicated with each other and are communicated with the water injection cavity; the tooth anchor concrete main body (6) of each cavity lower section is symmetrically provided with a groove communicated with the corresponding cavity, a high-strength spring (15) and a fixing bolt (14) are horizontally arranged in the groove from inside to outside in sequence, the high-strength spring (15) is in a compression state, and the transverse elastic coefficient is greater than 78500KN/mm2The fixing bolt (14) can be pushed to move transversely; two anchor tooth cavities (8) are symmetrically formed in the upper part of the tooth anchor (7), and when the tooth anchor (7) moves downwards until the fixing bolt (14) enters the anchor tooth cavities (8), the tooth anchor (7) can be prevented from continuously moving downwards; the side surface of the tooth anchor (7) is vertically and uniformly provided with anchor teeth (9), and the bottom of the tooth anchor is an anchor tooth tip part (10); the anchor teeth (9) are conical and the tip parts of the anchor teeth are downward; the center of the tooth anchor (7) is also provided with an anchor tooth high-pressure water channel (13) which is communicated with the water injection cavity (11) and is used for ejecting injected high-pressure water (16) from the lower end of the tooth anchor (7);
the top of the tooth anchor concrete main body (6) is symmetrically provided with lifting lugs (4), and the tooth anchor concrete main body (6) can be moved to an appointed installation position through the lifting lugs (4).
2. A gravity caisson foundation to be installed by injecting high pressure water into the mud using anchor teeth as defined in claim 1 wherein, above said water injection cavity (11), there is a water injection cavity wall (12) and both have the same cross-sectional dimensions.
3. A gravity caisson foundation for use in connection with a gravity caisson foundation installed by use of anchor teeth for high pressure water injection into the mud, as defined in claim 1, wherein said gravity caisson foundation is installed by:
the gravity type caisson foundation is moved to an appointed installation position through a lifting lug (4) and is vertically placed on the surface of the seabed (2), and a tooth anchor concrete main body (6) is pressed down to a certain depth on the surface of the seabed (2) through self weight; a high-pressure water injection pipe (17) is fixedly connected to the wall (12) of the water injection cavity, and the connection part is sealed while injecting high-pressure water (16); high-pressure water (16) injected into the water injection cavity (11) penetrates through an anchor tooth high-pressure water channel (13) in the tooth anchor (7) and flows out from the tip part, so that a seabed weakened area (18) is formed below the tooth anchor (7), the soil strength of the seabed weakened area (18) is weakened, and the tooth anchor (7) can conveniently penetrate into a specified depth; meanwhile, high-pressure water (16) at the top pushes the tooth anchor (7) to move downwards to penetrate into the soil body through the pressure, and when the tooth anchor (7) moves downwards until the height of the anchor tooth cavity (8) is consistent with that of the groove, the high-strength spring (15) pushes the fixing bolt (14) to move transversely and insert into the anchor tooth cavity (8) to prevent the tooth anchor (7) from continuing to move vertically, and the high-pressure water and the tooth anchor concrete main body (6) form a whole to exert the bearing capacity; finally, the injection of the high-pressure water (16) is stopped, and concrete grout (19) is injected through a high-pressure water injection pipe (17) and cured, and the water injection cavity (11) is cast into a solid body.
4. A gravity type caisson foundation installed by injecting high-pressure water into mud through anchor teeth as claimed in claim 1, wherein after the gravity type caisson foundation is installed, the lifting lugs (4) are connected with the anchor chains (3) so as to be connected with a structure needing anchoring on the upper part of the sea surface, and therefore the gravity type caisson foundation plays a role in anchoring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911224460.1A CN110952589A (en) | 2019-12-04 | 2019-12-04 | Gravity type caisson foundation installed by injecting high-pressure water into mud through anchor teeth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911224460.1A CN110952589A (en) | 2019-12-04 | 2019-12-04 | Gravity type caisson foundation installed by injecting high-pressure water into mud through anchor teeth |
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| CN110952589A true CN110952589A (en) | 2020-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911224460.1A Withdrawn CN110952589A (en) | 2019-12-04 | 2019-12-04 | Gravity type caisson foundation installed by injecting high-pressure water into mud through anchor teeth |
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| CN (1) | CN110952589A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112523252A (en) * | 2020-11-18 | 2021-03-19 | 河海大学 | Recyclable seabed anti-sinking plate suitable for uneven seabed and installation and use method |
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| KR101488290B1 (en) * | 2013-11-15 | 2015-02-02 | 대우조선해양 주식회사 | Spud apparatus for jack-up rig |
| US9371625B2 (en) * | 2014-06-09 | 2016-06-21 | Offshore Technology Development Pte Ltd | Modified spudcan with optimal peripheral skirt for enhanced performance of jackup operations |
| CN107023026A (en) * | 2017-06-02 | 2017-08-08 | 中国矿业大学 | A kind of sealing bottom type caisson wall and construction method |
| CN107117261A (en) * | 2017-03-21 | 2017-09-01 | 朱德金 | A kind of ship anchor for being easy to store |
| CN108677986A (en) * | 2018-05-16 | 2018-10-19 | 福州大学 | Technology of Deepwater Mooring System body and its construction technology |
| CN110172997A (en) * | 2019-05-29 | 2019-08-27 | 浙江大学 | A kind of core bucket gravity type foundation that mushroom anchor is reinforced |
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2019
- 2019-12-04 CN CN201911224460.1A patent/CN110952589A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101488290B1 (en) * | 2013-11-15 | 2015-02-02 | 대우조선해양 주식회사 | Spud apparatus for jack-up rig |
| US9371625B2 (en) * | 2014-06-09 | 2016-06-21 | Offshore Technology Development Pte Ltd | Modified spudcan with optimal peripheral skirt for enhanced performance of jackup operations |
| CN107117261A (en) * | 2017-03-21 | 2017-09-01 | 朱德金 | A kind of ship anchor for being easy to store |
| CN107023026A (en) * | 2017-06-02 | 2017-08-08 | 中国矿业大学 | A kind of sealing bottom type caisson wall and construction method |
| CN108677986A (en) * | 2018-05-16 | 2018-10-19 | 福州大学 | Technology of Deepwater Mooring System body and its construction technology |
| CN110172997A (en) * | 2019-05-29 | 2019-08-27 | 浙江大学 | A kind of core bucket gravity type foundation that mushroom anchor is reinforced |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112523252A (en) * | 2020-11-18 | 2021-03-19 | 河海大学 | Recyclable seabed anti-sinking plate suitable for uneven seabed and installation and use method |
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Application publication date: 20200403 |