Port water surface prefabricated platform gravity pile foundation structure and construction method
A technology of basic structure and construction method, which is applied in basic structure engineering, sheet pile wall, building and other directions, can solve the problems of high cost of anchoring facilities, large amount of basic steel for suction cylinders, and high construction cost, and is conducive to popularization and application. The effect of low material cost and environmental protection requirements
Pending Publication Date: 2021-07-23
CHANGJIANG SURVEY PLANNING DESIGN & RES
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Problems solved by technology
Conventional reinforced concrete foundations have complex underwater construction techniques, long construction periods and high costs; both single pile foundations and jacket foundations require piling, and the amount of steel used is large, and the construction is complicated and costly; the design of anchoring foundations is difficult, and anchoring The cost of facilities is high; the amount of steel used for the foundation of the suction cylinder is relatively large, and the construction process is complicated, resulting in high construction costs
Method used
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[0023] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0024] Such as figure 1 As shown, a gravity pile foundation structure of a port water surface prefabricated platform of the present invention comprises a gravity pile base 1, a gravity pile 2 and a prefabricated platform 3, combined figure 2 As shown, the gravity pile base 1 is a reinforced concrete structure, and a pencil-shaped (conical lower part, cylindrical upper part) grouting hole 11 is opened in the middle so that the gravity pile 2 can be poured in; each gravity pile base 1 is arranged with Four lifting lugs 8, so that it can be placed in the water and salvaged in the later stage for reuse.
[0025] to combine image 3 As shown, the tip of the bottom of the gravity pile 2 is conical (fitting with the conical shape of the lower part of the grouting hole), the bottom of the gravity pile 2 is fixed in the grouting hole 11, the body of ...
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The invention relates to a port water surface prefabricated platform gravity pile foundation structure and a construction method. The foundation structure comprises gravity pile bases, gravity piles and a prefabricated platform, wherein grouting holes are formed in the middle portions of the gravity pile bases, the bottoms of the gravity piles are fixed in the grouting holes, and the gaps between pile bodies of the gravity piles and the gravity pile bases are filled with sand bags; and the prefabricated platform is arranged on the tops of the gravity piles, and the gravity piles are connected with the prefabricated platform through hoop devices. After the gravity piles are poured into the gravity pile bases, the gaps between the gravity piles and the gravity pile bases are filled with the sand bags, so that the stability of the pile bodies of the gravity piles is kept, and the environmental protection requirement is met; one layer of anti-scouring sand quilt is laid on the surface of each filling sand bag so as to reduce the influence of wave current scouring on a gravity pile foundation; and after the gravity pile bases are arranged, the gravity piles, the filling sand bags, the anti-scouring sand quilts and other facilities are sequentially arranged, and compared with a traditional driven pile, the foundation structure does not need pile driving, so that the influence on marine geology is reduced, and meanwhile the construction cost is greatly reduced.
Description
technical field [0001] The invention relates to a port water surface prefabricated platform, in particular to a gravity pile foundation structure and a construction method of the port water surface prefabricated platform. Background technique [0002] At present, the foundation types of the port surface prefabricated platform mainly include conventional reinforced concrete foundation, single pile foundation, jacket foundation, mooring foundation and suction cylinder foundation and other foundation types. Conventional reinforced concrete foundations have complex underwater construction techniques, long construction periods and high costs; both single pile foundations and jacket foundations require piling, and the amount of steel used is large, and the construction is complicated and costly; the design of anchoring foundations is difficult, and anchoring The cost of facilities is high; the amount of steel used for the foundation of the suction cylinder is relatively large, and...
Claims
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Login to View More IPC IPC(8): E02D27/12E02D27/52E02D5/38E02D5/72
CPCE02D5/38E02D5/72E02D27/12E02D27/52
Inventor 程卫民张成陶铁铃付文军马鹏程汪顺吉何杰甘乐刘凯余学真
Owner CHANGJIANG SURVEY PLANNING DESIGN & RES