CN103758096B - A kind of offshore exploration platform and construction method thereof - Google Patents

A kind of offshore exploration platform and construction method thereof Download PDF

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Publication number
CN103758096B
CN103758096B CN201410033943.4A CN201410033943A CN103758096B CN 103758096 B CN103758096 B CN 103758096B CN 201410033943 A CN201410033943 A CN 201410033943A CN 103758096 B CN103758096 B CN 103758096B
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platform
foundation
auxiliary floating
floating caisson
exploration
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CN103758096A (en
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丁红岩
徐宝
张浦阳
黄宣旭
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Tianjin University
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Tianjin University
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Abstract

The invention discloses a kind of Novel offshore exploration platform and construction method thereof, this platform is linked together by support by foundation structure, auxiliary floating caisson and operating platform, and foundation structure and auxiliary floating caisson are respectively arranged with water inlet system and drainage system; This construction method adopts the transport of body of one who has dropped dead by the roadside formula by platform haul to exploration sites, foundation structure is full of water to make platform sinking to sea bed and leveling, after more auxiliary floating caisson being full of water, exploring equipment lifting is explored to operating platform, make platform floating after having explored and recover body of one who has dropped dead by the roadside formula, haul is left.The present invention adopts body of one who has dropped dead by the roadside formula transportation by driving when transporting, center of gravity is low, and safety is good; Installation process is simple and convenient, and location sinking controllability is strong; Use reliable and stable, decrease the restriction of marine natural conditions; Therefore, it is possible to ensure efficiency and the quality of marine ground investigation, increase the construction window phase of marine ground investigation, greatly improve the safety of marine ground investigation, save personnel and the expense of marine ground investigation.

Description

A kind of offshore exploration platform and construction method thereof
Technical field
The present invention relates to a kind of floating structure and construction method thereof, specifically, relate to a kind of assistance platform for marine ground investigation and construction method thereof.
Background technology
Before Construction of Wind Power, need the marine environment to offshore wind farm place, geological conditions etc. to carry out relevant exploration, the accurate exploration of marine environment and geological conditions is most important for the Exact Design of marine structure.What utilize marine resources development along with China carries forward vigorously, and especially along with the fast development in offshore wind farm field, marine ground investigation activity gets more and more, and exploration quality requirement is also more and more higher.
Current marine ground investigation is generally utilize special exploration boats and ships, casts anchor in sea, ship utilizes Special-purpose soil fetching device, original position search equipment etc. carry out marine ground investigation operation.But the on-the-spot in place and location complexity of casting anchor of this conventional art, vessel expenses is expensive, and the required engineering time is long, and construction cost is high.And owing to being usually subject to the impact of marine climate and the factor such as trend, wave, current exploring equipment and method window phase of can constructing is less, and efficiency of construction is low, of low quality.
Summary of the invention
The present invention is to solve existing marine ground investigation efficiency lower, explore second-rate technical problem, a kind of offshore exploration platform and construction method thereof are provided.
In order to solve the problems of the technologies described above, the present invention is achieved by following technical scheme:
A kind of offshore exploration platform, comprise the circular foundation structure of hollow, the circular auxiliary floating caisson of hollow and be provided with the operating platform of exploratory hole, described foundation structure and described auxiliary floating caisson are respectively arranged with water inlet system and drainage system, described foundation structure, described auxiliary floating caisson and described operating platform are linked together by the support that hoop is uniform, described foundation structure is positioned at the bottom of described support, described operating platform is positioned at the top of described support, and described auxiliary floating caisson is positioned at the middle part of described support.
Described operating platform end face is higher than design peak level 3 ~ 5m.
After described auxiliary floating caisson position on the bracket should meet offshore exploration platform sinking to sea bed, the waterline of exploration sites at the end face of described auxiliary floating caisson between structure centre line.
The circular internal diameter of described foundation structure is 8 ~ 13m, and circular external diameter is 10 ~ 15m, is highly 1 ~ 3m.
The circular internal diameter of described auxiliary floating caisson is 5 ~ 9m, and circular external diameter is 6 ~ 10m, is highly 1 ~ 3m.
The diameter of described exploratory hole is 0.3 ~ 1m.
The vertical projection height of described support is 5 ~ 50m.
Described support and described foundation structure, described auxiliary floating caisson, described operating platform respectively by welding, bolt is connected or snap ring connects.
A construction method for offshore exploration platform, comprises the steps:
(1) foundation structure, described auxiliary floating caisson and described operating platform described in land fabrication, and utilize described support to connect described foundation structure, described auxiliary floating caisson and described operating platform, to complete the assembling of offshore exploration platform, wherein guarantee that the water inlet system of described foundation structure and drainage system, the water inlet system of described auxiliary floating caisson and drainage system are closed;
(2) body of one who has dropped dead by the roadside formula means of transportation is adopted by described offshore exploration platform haul to exploration sites;
(3) open the water inlet system of described foundation structure in exploration sites, until described foundation structure closes its water inlet system after being full of water, described offshore exploration platform sinking is preset exploration sites and leveling to sea bed;
(4) water inlet system of described auxiliary floating caisson is opened, until described auxiliary floating caisson closes its water inlet system after being full of water;
(5) marine ground investigation equipment hoisting to described operating platform is explored;
(6) to have explored and by after the transfer of described marine ground investigation equipment, the drainage system of the drainage system and described auxiliary floating caisson of opening described foundation structure carries out draining, make described offshore exploration platform floating and recover body of one who has dropped dead by the roadside formula to place, exploration sites is left in haul.
The invention has the beneficial effects as follows:
Offshore exploration platform of the present invention adopts body of one who has dropped dead by the roadside formula transportation by driving mode when transporting, center of gravity is low, and safety is good; Attention problems process operation is simple and convenient, and location sinking controllability is strong; Use reliable and stable after installation, decrease the restriction of marine natural conditions to marine ground investigation; Therefore, it is possible to ensure efficiency and the quality of marine ground investigation, increase the construction window phase of marine ground investigation, greatly improve the safety of marine ground investigation, save personnel and the expense of marine ground investigation.
Accompanying drawing explanation
Fig. 1 is the structural representation of offshore exploration platform provided by the present invention;
Fig. 2 is the floor map of foundation structure;
Fig. 3 is the floor map of auxiliary floating caisson;
Fig. 4 is the floor map of operating platform;
Fig. 5 is the transportation by driving view of offshore exploration platform provided by the present invention.
In figure: 1, foundation structure; 2, support; 3, auxiliary floating caisson; 4, operating platform; 5, exploratory hole.
Detailed description of the invention
For summary of the invention of the present invention, feature and effect can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
As shown in Figure 1, this embodiment discloses herein a kind of offshore exploration platform, primarily of foundation structure 1, auxiliary floating caisson 3, operating platform 4 and connect the above-mentioned some supports 2 connect and form.
As shown in Figure 2, foundation structure 1 is circular hollow steel design, and its circular internal diameter is 8 ~ 13m, and circular external diameter is 10 ~ 15m, and the height of foundation structure 1 is 1 ~ 3m.Foundation structure 1 is provided with water inlet system and drainage system.
As shown in Figure 3, auxiliary floating caisson 3 is circular hollow steel design, and its circular internal diameter is 5 ~ 9m, and circular external diameter is 6 ~ 10m, and the height of auxiliary floating caisson 3 is 1 ~ 3m.Auxiliary floating caisson 3 is provided with water inlet system and drainage system.
As shown in Figure 4, operating platform 4 is steel work, be provided with the exploratory hole 5 that diameter is 0.3 ~ 1m, and operating platform 4 periphery is also provided with the safeguard procedures such as railing.
Support 2 is steel pipe or formed steel construction, and the vertical projection height of support 2 is 5 ~ 50m.Foundation structure 1, auxiliary floating caisson 3 and operating platform 4 link together by the uniform support 2 of some hoops, and wherein foundation structure 1 is positioned at the bottom of support 2, and operating platform 4 is positioned at the top of support 2, and auxiliary floating caisson 3 is positioned at the middle part of support 2.Support 2 and foundation structure 1, auxiliary floating caisson 3, operating platform 4 respectively by welding, bolt is connected or snap ring connects.
The overall height of offshore exploration platform is determined according to the depth of water situation in required exploration marine site, general operation platform 4 end face 3 ~ 5m higher than the design peak level of exploration sites.The auxiliary position of floating caisson 3 on support 2 also will be determined according to the design maximum water level of exploration sites, after generally should ensureing offshore exploration platform sinking to sea bed, the waterline of exploration sites auxiliary floating caisson 3 end face to auxiliary floating caisson 3 structure centre line between scope in.
The construction method of above-mentioned offshore exploration platform is as follows:
Land fabrication foundation structure 1, auxiliary floating caisson 3 and operating platform 4.The above-mentioned each parts of land transportation are to harbour, and bank utilizes support 2 to connect foundation structure 1, auxiliary floating caisson 3 and operating platform 4, to complete the assembling of offshore exploration platform.Guarantee that water inlet system and drainage system, the water inlet system of assisting floating caisson 3 and the drainage system of foundation structure 1 are closed.
Offshore exploration platform is lifted into water, adopt body of one who has dropped dead by the roadside formula means of transportation, utilize towboat by offshore exploration platform haul to exploration sites, as shown in Figure 5.
Offshore exploration platform, according to after Design Orientation, opens the water inlet system of foundation structure 1, until foundation structure 1 closes its water inlet system after being full of water, offshore exploration platform sinking is preset exploration sites to sea bed, and leveling.
Because auxiliary floating caisson 3 is positioned near water surface curve, therefore can provide buoyancy in above-mentioned sinking process, topple in sinking process under water to avoid offshore exploration platform entirety.Offshore exploration platform opens the water inlet system of auxiliary floating caisson 3 after sinking to putting in place, until auxiliary floating caisson 3 closes its water inlet system after being full of water, can increase the gross weight of offshore exploration platform.
By on marine ground investigation equipment hoisting operating platform 4, open exploratory hole 5 and carry out marine ground investigation.
Marine ground investigation completes, and after being shifted by marine ground investigation equipment, the drainage system of the drainage system and auxiliary floating caisson 3 of opening foundation structure 1 carries out draining, make offshore exploration platform floating and recover body of one who has dropped dead by the roadside formula to place, exploration sites is left in haul, can carry out the exploration of next exploratory point.
Although be described the preferred embodiments of the present invention by reference to the accompanying drawings above; but the present invention is not limited to above-mentioned detailed description of the invention; above-mentioned detailed description of the invention is only schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present invention; do not departing under the ambit that present inventive concept and claim protect, can also make the concrete conversion of a lot of form, these all belong within protection scope of the present invention.

Claims (9)

1. an offshore exploration platform, it is characterized in that, comprise the circular foundation structure of hollow, the circular auxiliary floating caisson of hollow and be provided with the operating platform of exploratory hole, described foundation structure and described auxiliary floating caisson are respectively arranged with water inlet system and drainage system, described foundation structure, described auxiliary floating caisson and described operating platform are linked together by the support that hoop is uniform, described foundation structure is positioned at the bottom of described support, described operating platform is positioned at the top of described support, and described auxiliary floating caisson is positioned at the middle part of described support.
2. a kind of offshore exploration platform according to claim 1, is characterized in that, described operating platform end face is higher than design peak level 3 ~ 5m.
3. a kind of offshore exploration platform according to claim 1, it is characterized in that, after described auxiliary floating caisson position on the bracket should meet offshore exploration platform sinking to sea bed, the waterline of exploration sites at the end face of described auxiliary floating caisson between structure centre line.
4. a kind of offshore exploration platform according to claim 1, is characterized in that, the circular internal diameter of described foundation structure is 8 ~ 13m, and circular external diameter is 10 ~ 15m, is highly 1 ~ 3m.
5. a kind of offshore exploration platform according to claim 1, is characterized in that, the circular internal diameter of described auxiliary floating caisson is 5 ~ 9m, and circular external diameter is 6 ~ 10m, is highly 1 ~ 3m.
6. a kind of offshore exploration platform according to claim 1, is characterized in that, the diameter of described exploratory hole is 0.3 ~ 1m.
7. a kind of offshore exploration platform according to claim 1, is characterized in that, the vertical projection height of described support is 5 ~ 50m.
8. a kind of offshore exploration platform according to claim 1, is characterized in that, described support and described foundation structure, described auxiliary floating caisson, described operating platform respectively by welding, bolt is connected or snap ring connects.
9. the construction method of offshore exploration platform according to any one of claim 1-8, is characterized in that, comprise the steps:
(1) foundation structure, described auxiliary floating caisson and described operating platform described in land fabrication, and utilize described support to connect described foundation structure, described auxiliary floating caisson and described operating platform, to complete the assembling of offshore exploration platform, wherein guarantee that the water inlet system of described foundation structure and drainage system, the water inlet system of described auxiliary floating caisson and drainage system are closed;
(2) body of one who has dropped dead by the roadside formula means of transportation is adopted by described offshore exploration platform haul to exploration sites;
(3) open the water inlet system of described foundation structure in exploration sites, until described foundation structure closes its water inlet system after being full of water, described offshore exploration platform sinking is preset exploration sites and leveling to sea bed;
(4) water inlet system of described auxiliary floating caisson is opened, until described auxiliary floating caisson closes its water inlet system after being full of water;
(5) marine ground investigation equipment hoisting to described operating platform is explored;
(6) to have explored and by after the transfer of described marine ground investigation equipment, the drainage system of the drainage system and described auxiliary floating caisson of opening described foundation structure carries out draining, make described offshore exploration platform floating and recover body of one who has dropped dead by the roadside formula to place, exploration sites is left in haul.
CN201410033943.4A 2014-01-23 2014-01-23 A kind of offshore exploration platform and construction method thereof Active CN103758096B (en)

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CN109930576A (en) * 2019-04-19 2019-06-25 中交第一航务工程勘察设计院有限公司 A kind of assembled bucket foundation sea geological prospecting platform structure

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CN101532836B (en) * 2009-04-23 2011-08-03 中国海洋石油总公司 Environmental loading measuring device of ocean engineering model and use method thereof
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CN203372366U (en) * 2013-05-13 2014-01-01 浙江华东建设工程有限公司 Offshore platform for static sounding in shallow sea
CN103410133B (en) * 2013-08-20 2015-12-23 中国海洋石油总公司 Air bag is utilized to carry out the method for Attention problems to deep water jacket
CN103422486B (en) * 2013-08-22 2015-03-25 中交第三航务工程勘察设计院有限公司 Shipborne truss combined in-situ testing platform
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