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Method for sinking and positioning large-diameter steel pile casing in sea
The invention provides a method for sinking and positioning a large-diameter steel pile casing in sea. The method comprises the steps of A, constructing a boring platform, B, forming a cofferdam in a region in which the steel pile casing needs to be sunk, C, clearing seabed surface within the cofferdam, D, mounting a guide frame on the constructed boring platform and determining the design plane of a pile foundation, E, sinking the steel pile casing along the guide frame, and when the bottom end of the steel pile casing is sunk to the bed surface, connecting the steel pile casing with a steel pipe pile in the boring platform, F, after all the steel pile casings needed by a pier are sunk, pouring underwater non-discrete concrete in a region, corresponding to a bearing platform, of the seabed surface so that the bottoms of the steel pile casings and the underwater non-discrete concrete can be fixedly connected with the seabed surface, thereby keeping the bottoms of the steel pile casings steady and stopping the leakage of the gap between the bottoms of the steel pile casings and the seabed surface. The method is simple in structure, convenient and fast to operate, capable of well guaranteeing that the steel pile casings are sunk as designed, and therefore, the construction quality is ensured.
Method for sinking and positioning large-diameter steel pile casing in sea
The invention provides a method for sinking and positioning a large-diameter steel pile casing in sea. The method comprises the steps of A, constructing a boring platform, B, forming a cofferdam in a region in which the steel pile casing needs to be sunk, C, clearing seabed surface within the cofferdam, D, mounting a guide frame on the constructed boring platform and determining the design plane of a pile foundation, E, sinking the steel pile casing along the guide frame, and when the bottom end of the steel pile casing is sunk to the bed surface, connecting the steel pile casing with a steel pipe pile in the boring platform, F, after all the steel pile casings needed by a pier are sunk, pouring underwater non-discrete concrete in a region, corresponding to a bearing platform, of the seabed surface so that the bottoms of the steel pile casings and the underwater non-discrete concrete can be fixedly connected with the seabed surface, thereby keeping the bottoms of the steel pile casings steady and stopping the leakage of the gap between the bottoms of the steel pile casings and the seabed surface. The method is simple in structure, convenient and fast to operate, capable of well guaranteeing that the steel pile casings are sunk as designed, and therefore, the construction quality is ensured.
Method for sinking and positioning large-diameter steel pile casing in sea
LI ZHIHUI (author) / YUAN CHANGCHUN (author) / ZHANG YAFENG (author) / LIU CHANGHUI (author) / WANG FENG (author) / ZHANG JIANXUN (author) / ZHAO DUOCANG (author) / CAO YU (author)
2015-08-26
Patent
Electronic Resource
English
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