CN103174150A - Gravity type foundation sinking device and application method thereof - Google Patents
Gravity type foundation sinking device and application method thereof Download PDFInfo
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- CN103174150A CN103174150A CN2013101050145A CN201310105014A CN103174150A CN 103174150 A CN103174150 A CN 103174150A CN 2013101050145 A CN2013101050145 A CN 2013101050145A CN 201310105014 A CN201310105014 A CN 201310105014A CN 103174150 A CN103174150 A CN 103174150A
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Abstract
The invention discloses a gravity type foundation sinking device and an application method thereof. At first, multiple air buoyancy tanks are hung on the periphery of a gravity type foundation, then the gravity type foundation is towed to the appointed place, and sinking of the foundation and upward floating motion of the buoyancy tanks are completed through a method that aqueous vapor is replaced through regulation and control of vent valves and drain valves of the buoyancy tanks; after sinking operation is completed, the air buoyancy tanks can be recycled; and in the sinking process, stability and security of a sinking structure can be guaranteed through controlling of the exhausting speed and the drainage speed of the buoyancy tanks. The gravity type foundation sinking device is low in cost, easy to manufacture, and capable of being suitable for gravity type foundations in different figures, and is widely applied to construction project fields of water conservancy, ports, ocean, bridges, offshore wind power and the like.
Description
Technical field
The present invention relates to the sinking technology of gravity type foundation in offshore wind farm, harbour and ocean engineering, particularly a kind of gravity type foundation sinking device and application process thereof of hanging buoyancy tank.
Background technology
The gravity type foundation structure is widely used in water conservancy, harbour, bridge and the development in recent years construction project such as ocean, offshore wind farm field faster with himself advantage.Made by steel concrete as the gravity base, keep stablely by himself weight, generally be applicable to the comparatively hard marine sites, stratum such as 10～30m stiff clay, sand or rock.Gravity type foundation has the remarkable advantages such as structure design is simple, rolled steel dosage is little, manufacture difficulty is little, durability is strong, maintenance cost is low, but also exists significant deficiency.At present, the sinking of gravity type foundation is installed and is mostly adopted crane ship to operate, but due to himself quality and the bodily form excessive, the sinking process is difficult to control, if misoperation also may cause basic local failure, have a strong impact on the safety of foundation structure in work progress and later stage running.For this reason, the present invention proposes a kind of gravity type foundation sinking method of hanging airtight buoyancy tank, to improve operability, stability and the safety of gravity type foundation in the sinking process.
Summary of the invention
The object of the invention is to, himself quality and excessive unmanageable defective of sinking process that causes of the bodily form of the gravity type foundation that exists for prior art, a kind of subsidence velocity and sinking attitude of effectively controlling gravity type foundation is provided, and guarantees a kind of gravity type foundation sinking device and the application process thereof of the stability and security in gravity type foundation sinking process.
The present invention is achieved by following technical solution.
A kind of gravity type foundation sinking device, comprise gravity type foundation, it is characterized in that, the top of described gravity type foundation 1 is that a cylinder, bottom are the hollow structure of a cone, is provided with airtight air buoyancy tank A2, airtight air buoyancy tank B3, airtight air buoyancy tank C4 and airtight air buoyancy tank D5 along the circumferential perimeter of gravity type foundation 1; Four airtight air buoyancy tanks are connected by anchor cable A I 6, anchor cable A II 7, anchor cable B I 8, anchor cable B II 9, anchor cable C I 10, anchor cable C II 11, anchor cable D I 12 and the anchor cable D II 13 that is arranged on gravity type foundation 1 cone middle part respectively; Each airtight air buoyancy tank is connected by pin AB22, pin BC23, pin CD24 and pin DA25 between any two; Be respectively arranged with vibration isolator A I 14, vibration isolator A II 15, vibration isolator B I 16, vibration isolator B I 17, vibration isolator C I 18, vibration isolator C II 19, vibration isolator D I 20 and vibration isolator D II 21 between each airtight air buoyancy tank and gravity type foundation 1; Described vibration isolator is separately positioned on inner edge and the base at airtight air buoyancy tank two ends; The top of each airtight air buoyancy tank is respectively arranged with outlet valve A26, outlet valve B28, outlet valve C30 and outlet valve D32, and the bottom is respectively arranged with draining valve A27, draining valve B29, draining valve C31 and draining valve D33.
The cylinder height on described gravity type foundation 1 top is 8m, and external diameter is 5m, and the height of lower cone body is 12m, and base diameter is 20m, and thickness is 0.8m.
Described gravity type foundation 1 is made by Reinforced Concrete Materials.
Described anchor cable is arranged on the 5m place that makes progress, bottom surface apart from gravity type foundation 1 lower cone body, and anchor cable length is respectively 1.5m and 3m.
Described airtight air buoyancy tank is steel frame construction, and Plate Welding is made, thickness degree 1cm; Its longitudinal section is polygon, and long limit and longer sides are respectively 8m and 6m, and its cross section is fan-shaped, and the camber line of interior outside and gravity type foundation 1 adapt; After each airtight air buoyancy tank connects, the external diameter of integral ring-shaped supporting structure is 18m.
The quantity of described airtight air buoyancy tank is 3～8.
A kind of application process of gravity type foundation sinking device has following steps:
(1) by anchor cable A I 6, anchor cable A II 7, anchor cable B I 8, anchor cable B II 9, anchor cable C I 10, anchor cable C II 11, anchor cable D I 12 and anchor cable D II 13, airtight air buoyancy tank A2, airtight air buoyancy tank B3, airtight air buoyancy tank C4 and airtight air buoyancy tank D5 are hung circumferential perimeter at gravity type foundation 1;
(2) with gravity type foundation 1 towage to the appointed place, open outlet valve A26, outlet valve B28, outlet valve C30, outlet valve D32 and draining valve A27, draining valve B29, draining valve C31, the draining valve D33 of airtight air buoyancy tank, gas in airtight air buoyancy tank is replaced into water gradually, due to the mass penalty of airtight air buoyancy tank, gravity type foundation 1 synchronizes with airtight air buoyancy tank;
(3) after sinking is stablized, anchor cable is lax, with whole anchor cable dismountings, again open outlet valve A26, outlet valve B28, outlet valve C30, outlet valve D32 and draining valve A27, draining valve B29, draining valve C31, the draining valve D33 of airtight air buoyancy tank, again the water in airtight air buoyancy tank is replaced into gas, airtight air buoyancy tank breaks away from gravity type foundation 1 and floats gradually;
(4) when whole airtight air buoyancy tanks emerge stable after, dismantle the connection pin between each airtight air buoyancy tank, reclaim airtight air buoyancy tank, complete the sinking operation.
In the floating-upward process of the airtight air buoyancy tank of described step (2) and (3) and gravity type foundation 1 sinking and airtight air buoyancy tank, guarantee the stability and security of airtight air buoyancy tank and gravity type foundation 1 by the turnover gas of regulating each outlet valve and draining valve, the speed of Inlet and outlet water.
The invention has the beneficial effects as follows, a kind of gravity type foundation sinking device is provided, outlet valve and the draining valve by the regulation and control buoyancy tank completed the sinking action of gravity type foundation and the floating of buoyancy tank and moved with the method for displacement aqueous vapor; Thereby and stability and the safety of time sink structure have been guaranteed by exhaust, the drainage speed of controlling each buoyancy tank.Device therefor of the present invention is with low cost, is easy to make, and is applied widely, recoverable, and applicable to the gravity type foundation of the different bodily forms, have good economy and compliance, be easy to promote.
Description of drawings
Fig. 1 is the structural profile schematic diagram of a kind of gravity type foundation sinking method of the present invention;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is the rear elevation of Fig. 1;
Fig. 4 is the monomer decomposing schematic representation of the airtight air buoyancy tank of the present invention;
Fig. 5 is course of work schematic diagram of the present invention.
Description of reference numerals is as follows:
1---gravity type foundation 2---airtight air buoyancy tank A
3---airtight air buoyancy tank B 4---airtight air buoyancy tank C
5---airtight air buoyancy tank D 6---anchor cable A I
7---anchor cable A II 8---anchor cable B I
9---anchor cable B II 10---anchor cable C I
11---anchor cable C II 12---anchor cable D I
13---anchor cable D II 14---vibration isolator A I
15---vibration isolator A II 16---vibration isolator B I
17---vibration isolator B I 18---vibration isolator C I
19---vibration isolator C II 20---vibration isolator D I
21---vibration isolator D II 22---pin AB
23---pin BC 24---pin CD
25---pin DA 26---outlet valve A
27---draining valve A 28---outlet valve B
29---draining valve B 30---outlet valve C
31---draining valve C 32---outlet valve D
33---draining valve D
The specific embodiment
The invention will be further described below in conjunction with the drawings and the specific embodiments.
Gravity type foundation sinking device of the present invention referring to Fig. 1-Fig. 4, is provided with airtight air buoyancy tank A2, airtight air buoyancy tank B3, airtight air buoyancy tank C4 and airtight air buoyancy tank D5 along the periphery of gravity type foundation 1; Described gravity type foundation 1 is that top is that cylinder, bottom are hollow, the reinforced concrete structure of cone; The cylinder height on its top is 8m, and external diameter is 5m, and the height of lower cone body is 12m, and base diameter is 20m, and thickness is 0.8m.Described airtight air buoyancy tank is steel frame construction, and Plate Welding is made, thickness degree 1cm; Its longitudinal section is polygon, and long limit and longer sides are respectively 8m and 6m, and its cross section is fan-shaped, and the camber line of interior outside and gravity type foundation 1 adapt; After each airtight air buoyancy tank connects, the external diameter of integral ring-shaped supporting structure is 18m; The quantity of airtight air buoyancy tank is 3～8.Four airtight air buoyancy tanks are connected by anchor cable A I 6, anchor cable A II 7, anchor cable B I 8, anchor cable B II 9, anchor cable C I 10, anchor cable C II 11, anchor cable D I 12 and the anchor cable D II 13 that is arranged on gravity type foundation 1 cone middle part respectively; Described anchor cable is arranged on the 5m place that makes progress, bottom surface apart from gravity type foundation 1 lower cone body, and anchor cable length is respectively 1.5m and 3m.Each airtight air buoyancy tank is connected by pin AB22, pin BC23, pin CD24 and pin DA25 between any two; Be respectively arranged with vibration isolator A I 14, vibration isolator A II 15, vibration isolator B I 16, vibration isolator B I 17, vibration isolator C I 18, vibration isolator C II 19, vibration isolator D I 20 and vibration isolator D II 21 between each airtight air buoyancy tank and gravity type foundation 1; Described vibration isolator is separately positioned on inner edge and the base at airtight air buoyancy tank two ends; The top of each airtight air buoyancy tank is respectively arranged with outlet valve A26, outlet valve B28, outlet valve C30 and outlet valve D32, and the bottom is respectively arranged with draining valve A27, draining valve B29, draining valve C31 and draining valve D33.
The method that gravity type foundation of the present invention sinks, the one, plant the gravity type foundation sinking method of hanging buoyancy tank, step is as follows:
(1) by anchor cable A I 6, anchor cable A II 7, anchor cable B I 8, anchor cable B II 9, anchor cable C I 10, anchor cable C II 11, anchor cable D I 12 and anchor cable D II 13, airtight air buoyancy tank A2, airtight air buoyancy tank B3, airtight air buoyancy tank C4 and airtight air buoyancy tank D5 are hung circumferential perimeter at gravity type foundation 1, as shown in Fig. 5 (1);
(2) with gravity type foundation 1 towage to the appointed place, open outlet valve A26, outlet valve B28, outlet valve C30, outlet valve D32 and draining valve A27, draining valve B29, draining valve C31, the draining valve D33 of airtight air buoyancy tank, gas in airtight air buoyancy tank is replaced into water gradually, mass penalty due to airtight air buoyancy tank, gravity type foundation 1 synchronizes with airtight air buoyancy tank, as shown in Fig. 5 (2);
(3) after sinking is stablized, anchor cable is lax, with whole anchor cable dismountings, again open outlet valve A26, outlet valve B28, outlet valve C30, outlet valve D32 and draining valve A27, draining valve B29, draining valve C31, the draining valve D33 of airtight air buoyancy tank, again the water in airtight air buoyancy tank is replaced into gas, airtight air buoyancy tank breaks away from gravity type foundation 1 and floats gradually, as shown in Fig. 5 (3);
(4) when whole airtight air buoyancy tanks emerge stable after, dismantle the connection pin between each airtight air buoyancy tank, reclaim airtight air buoyancy tank, complete the sinking operation.
In the floating-upward process of the airtight air buoyancy tank of described step (2) and (3) and gravity type foundation sinking and airtight air buoyancy tank, guarantee the stability and security of airtight air buoyancy tank and gravity type foundation by the turnover gas of regulating each outlet valve and draining valve, the speed of Inlet and outlet water.
The present invention is widely used in the construction project such as water conservancy, harbour, ocean, bridge, offshore wind farm field.
Claims (8)
1. gravity type foundation sinking device, comprise gravity type foundation, it is characterized in that, the top of described gravity type foundation (1) is that a cylinder, bottom are the hollow structure of a cone, is provided with airtight air buoyancy tank A(2 along the circumferential perimeter of gravity type foundation (1)), airtight air buoyancy tank B(3), airtight air buoyancy tank C(4) and airtight air buoyancy tank D(5); Four airtight air buoyancy tanks are connected by anchor cable A I (6), anchor cable A II (7), anchor cable B I (8), anchor cable B II (9), anchor cable C I (10), anchor cable C II (11), anchor cable D I (12) and the anchor cable D II (13) that is arranged on gravity type foundation (1) cone middle part respectively; Each airtight air buoyancy tank is between any two by pin AB(22), pin BC(23), pin CD(24) with pin DA(25) be connected; Be respectively arranged with vibration isolator A I (14), vibration isolator A II (15), vibration isolator B I (16), vibration isolator B I (17), vibration isolator C I (18), vibration isolator C II (19), vibration isolator D I (20) and vibration isolator D II (21) between each airtight air buoyancy tank and gravity type foundation (1); Described vibration isolator is separately positioned on inner edge and the base at airtight air buoyancy tank two ends; The top of each airtight air buoyancy tank is respectively arranged with outlet valve A(26), outlet valve B(28), outlet valve C(30) and outlet valve D(32), the bottom is respectively arranged with draining valve A(27), draining valve B(29), draining valve C(31) and draining valve D(33).
2. according to claim 1 a kind of gravity type foundation sinking device, is characterized in that, the cylinder height on described gravity type foundation (1) top is 8m, and external diameter is 5m, and the height of lower cone body is 12m, and base diameter is 20m, and thickness is 0.8m.
3. according to claim 1 a kind of gravity type foundation sinking device, is characterized in that, described gravity type foundation (1) is made by Reinforced Concrete Materials.
4. according to claim 1 a kind of gravity type foundation sinking device, is characterized in that, described anchor cable is arranged on the 5m place that makes progress, bottom surface apart from gravity type foundation (1) lower cone body, and anchor cable length is respectively 1.5m and 3m.
5. according to claim 1 a kind of gravity type foundation sinking device, is characterized in that, described airtight air buoyancy tank is steel frame construction, and Plate Welding is made, thickness degree 1cm; Its longitudinal section is polygon, and long limit and longer sides are respectively 8m and 6m, and its cross section is fan-shaped, and the camber line of interior outside and gravity type foundation (1) adapt; After each airtight air buoyancy tank connects, the external diameter of integral ring-shaped supporting structure is 18m.
6. according to claim 1 a kind of gravity type foundation sinking device, is characterized in that, the quantity of described airtight air buoyancy tank is 3～8.
7. the application process of a kind of gravity type foundation sinking device of claim 1 has following steps:
(1) by anchor cable A I (6), anchor cable A II (7), anchor cable B I (8), anchor cable B II (9), anchor cable C I (10), anchor cable C II (11), anchor cable D I (12) and anchor cable D II (13) with airtight air buoyancy tank A(2), airtight air buoyancy tank B(3), airtight air buoyancy tank C(4) and airtight air buoyancy tank D(5) hang the circumferential perimeter in gravity type foundation (1);
(2) with gravity type foundation (1) towage to the appointed place, open the outlet valve A(26 of airtight air buoyancy tank), outlet valve B(28), outlet valve C(30), outlet valve D(32) and draining valve A(27), draining valve B(29), draining valve C(31), draining valve D(33), gas in airtight air buoyancy tank is replaced into water gradually, due to the mass penalty of airtight air buoyancy tank, gravity type foundation (1) synchronizes with airtight air buoyancy tank;
(3) after sinking is stablized, anchor cable is lax, with whole anchor cable dismountings, again open the outlet valve A(26 of airtight air buoyancy tank), outlet valve B(28), outlet valve C(30), outlet valve D(32) and draining valve A(27), draining valve B(29), draining valve C(31), draining valve D(33), again the water in airtight air buoyancy tank is replaced into gas, airtight air buoyancy tank breaks away from gravity type foundation (1) and floats gradually;
(4) when whole airtight air buoyancy tanks emerge stable after, dismantle the connection pin between each airtight air buoyancy tank, reclaim airtight air buoyancy tank, complete the sinking operation.
8. according to claim 7 a kind of application process of gravity type foundation sinking device, it is characterized in that, in the floating-upward process of the airtight air buoyancy tank of described step (2) and (3) and gravity type foundation (1) sinking and airtight air buoyancy tank, guarantee the stability and security of airtight air buoyancy tank and gravity type foundation (1) by the turnover gas of regulating each outlet valve and draining valve, the speed of Inlet and outlet water.
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| CN201310105014.5A CN103174150B (en) | 2013-03-28 | 2013-03-28 | Gravity type foundation sinking device and application method thereof |
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| CN201310105014.5A CN103174150B (en) | 2013-03-28 | 2013-03-28 | Gravity type foundation sinking device and application method thereof |
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| CN103174150B CN103174150B (en) | 2015-03-18 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103711147A (en) * | 2013-11-29 | 2014-04-09 | 中交第四航务工程局有限公司 | Method of mounting ballast tank in immersed tube |
| CN103758147A (en) * | 2014-02-13 | 2014-04-30 | 天津大学前沿技术研究院有限公司 | Gravity type offshore wind turbine generator set foundation and towing and sinking method thereof |
| CN110155264A (en) * | 2019-06-12 | 2019-08-23 | 长江勘测规划设计研究有限责任公司 | Offshore wind turbine composite tube basis towage structure and method for towing |
| CN110158638A (en) * | 2019-06-12 | 2019-08-23 | 长江勘测规划设计研究有限责任公司 | Offshore wind farm composite tube foundation construction structure and construction method |
| CN111733859A (en) * | 2020-07-15 | 2020-10-02 | 中交第三航务工程局有限公司 | Auxiliary sinking device and method for foundation barrel body of barrel-type breakwater |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711147A (en) * | 2013-11-29 | 2014-04-09 | 中交第四航务工程局有限公司 | Method of mounting ballast tank in immersed tube |
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| CN110155264A (en) * | 2019-06-12 | 2019-08-23 | 长江勘测规划设计研究有限责任公司 | Offshore wind turbine composite tube basis towage structure and method for towing |
| CN110158638A (en) * | 2019-06-12 | 2019-08-23 | 长江勘测规划设计研究有限责任公司 | Offshore wind farm composite tube foundation construction structure and construction method |
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| CN111733859A (en) * | 2020-07-15 | 2020-10-02 | 中交第三航务工程局有限公司 | Auxiliary sinking device and method for foundation barrel body of barrel-type breakwater |
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| CN103174150B (en) | 2015-03-18 |
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