Threaded cylinder type foundation and application thereof
A cylindrical foundation and thread technology, which is applied in infrastructure engineering, construction, sheet pile walls, etc., can solve the problems of increased installation cost, delay in construction period, and enlarged diameter, so as to shorten offshore construction time, reduce construction costs and The effect of construction costs
Pending Publication Date: 2016-12-07
TIANJIN UNIV
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Problems solved by technology
If such a conventional cylindrical foundation is required to provide a larger bearing capacity, the only way to increase the diameter, height and body thickness of the cylindrical foundation is to use. In addition, the installation of this type of cylindrical foundation requires offshore negative pressure subsidence technology or With the assistance of positive pressure sinking technology, due to the limitations of negative pressure and positive pressure sinking, it often happens that the initial inclination angle of the cylindrical foundation after installation exceeds the allowable requirements, resulting in delays in the construction period and increased installation costs
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[0018] Below in conjunction with accompanying drawing and embodiment the present invention will be described in further detail:
[0019] A threaded cylindrical foundation, including an upper steel cylinder 3, a cylinder cover 4, a lower steel cylinder 5, a threaded structure 6, a first steel beam 7-1, a second steel beam 7-2, and a third steel beam 7- 3. The first circular reinforcing rib 8-1, the second circular reinforcing rib 8-2, the third circular reinforcing rib 8-3, the fourth circular reinforcing rib 8-4 and the reinforcing disc 9. The upper steel cylinder has a frustum-shaped structure, and a flange 2 is arranged on the top of the upper steel cylinder, and the upper part of the flange is the marine engineering superstructure 1 . The cylinder cover is arranged at the bottom of the upper steel cylinder, and the reinforcing disc is arranged at the center of the cylinder cover, and the diameter of the reinforcing disc is 30% of the diameter of the cylinder cover. The low...
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The invention discloses a threaded cylinder type foundation and application thereof. The threaded cylinder type foundation comprises an upper steel cylinder, a cylinder cover, a lower steel cylinder, a thread structure, a first steel beam, a second steel beam, a third steel beam, a first annular reinforcing rib, a second annular reinforcing rib, a third annular reinforcing rib, a fourth annular reinforcing rib and a reinforcing disc. The device can realize complete onshore control, the adjustment for the bearing capacity of the cylinder type foundation can be realized by adjusting the thread height and thread pitch of the thread structure, a matched spiral drill pipe device is used for spirally drilling the cylinder type foundation into a seabed in a marine installation manner, and the defect that the cylinder type foundation is inclined during installation when a negative pressure sinking technology or a positive pressure sinking technology is adopted is avoided; the installation speed and installation depth of the cylinder type foundation can be regulated in real time by adopting rotary drill installation, controlled regulation is realized in the whole construction period, and the threaded cylinder type foundation has the characteristics that the building cost and the construction cost are reduced and the offshore construction time is shortened.
Description
technical field [0001] The invention belongs to the field of marine engineering, and relates to a cylindrical foundation with threads and an application thereof. Background technique [0002] The barrel foundation is a prefabricated steel structure, which bears the load of the marine structure and transmits it to the foundation in marine engineering, and is the foundation of the marine structure. At present, the cylindrical foundation is mainly used in offshore wind farms, simple offshore oil platforms, and port terminals. Its structure is mainly cylindrical or box-shaped. Open your mouth. If such a conventional cylindrical foundation is required to provide a larger bearing capacity, the only way to increase the diameter, height and body thickness of the cylindrical foundation is to use. In addition, the installation of this type of cylindrical foundation requires offshore negative pressure subsidence technology or With the assistance of positive pressure sinking technolog...
Claims
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Login to View More IPC IPC(8): E02D5/24E02D5/56E02D27/52
CPCE02D5/24E02D5/56E02D27/52
Inventor 刘润刘孟孟练继建丁红岩
Owner TIANJIN UNIV