A pre-assembled method for the main grid 1/4 cylinder land area of lattice-type steel sheet piles
A technology of lattice-type steel sheet piles and steel sheet piles, which is applied in the fields of sheet pile walls, buildings, and foundation structure engineering, etc., can solve the problems of high requirements for marine environmental protection, inability to pre-assemble master grid steel sheet piles, and inability to complete hoisting and sinking at one time, etc. Achieve the effect of reducing assembly time
Active Publication Date: 2016-01-27
CCCC THIRD HARBOR ENG
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Problems solved by technology
[0011] The present invention aims at the construction process of the artificial island formed by backfilling the cofferdam formed by the large cylinder of lattice-type steel sheet piles and the breakwater, which is faced with the site conditions of "restricted from top to bottom, left and right" (that is, the height limit of the construction area, shallow water depth, etc.) , poor geological conditions, high requirements for marine environmental protection) and the construction conditions required by the construction period, it is impossible to pre-assemble the main grid steel sheet piles on site, and it is impossible to complete the overall hoisting and sinking of one main grid at one time. / 4 Cylinder land area pre-assembly method
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[0045] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.
[0046] see figure 1 and figure 2 , an artificial island 100 is formed by backfilling a cofferdam formed by a large cylinder of lattice steel sheet piles 101 and a breakwater 102, covering an area of about 1.5 million square meters. The axis length of the island wall structure of lattice-type steel sheet piles is about 5.1km, and there are 134 large cylinders (101a) of lattice-type steel sheet piles with diameters of 26.9m and 31.194m respectively. There are 133 sets of sub-grids 101b connecting the main grid 101a (that is, the large cylinder of lattice-type steel sheet piles) with the main grid, which are: ① The diameter of the auxiliary grid between the main grids is 26.9m in diameter and the diameter is 10.976m. There are 55 groups (110 pi...
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The invention discloses a pre-assembling method of a 1 / 4 cylinder of a main cell of a cellular steel sheet pile in the land area. The method comprises the following steps: processing a steel sheet pile at a pre-assembling site in the inland; pre-assembling the 1 / 4 cylinder of a main cell sheet pile on a transport ship to obtain a corresponding 1 / 4 round steel plate pile assembling sheets. According to the scheme, the pre-assembling method overcomes the problem of the existing scheme.
Description
technical field [0001] The invention relates to a construction technique of an artificial island on the sea, in particular to a land area pre-assembly method of a 1 / 4 cylinder of a main cell of a lattice-type steel sheet pile. Background technique [0002] Artificial islands are generally artificially built land in shallow waters near the coast. As a place for offshore operations or other purposes, most of them are connected to the shore by trestles or undersea tunnels. In a coastal country with developed modern industry, the dense population and crowded cities along the coast have greatly restricted the further development and construction of new enterprises and public facilities, and the problems of residence, traffic, noise, water and air pollution in the original city itself are also difficult. solve. Therefore, the construction of artificial islands has changed or improved the above-mentioned difficult problems. Artificial island is one of the ways to use ocean space,...
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IPC IPC(8): E02D5/04
Inventor 徐明贤蔡福康熊文峰胡雪华时蓓玲郑荣平王伟徐立新苗艳遂张景瑞
Owner CCCC THIRD HARBOR ENG