Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention discloses an offshore fan combination-type single pile foundation and a construction method thereof. The offshore fan combination-type single pile foundation comprises a pile body, a pile wing and a gravity disc, the pile wing is located on the outer wall of the upper part of an anchoring section of the pile body, the gravity disc is located on the interface of a surrounding soil body of the pile body and seawater and is of a rigid structure, and the gravity disc and the pile body are fixedly connected or freely connected. The construction method of the combination-type single pile foundation comprises the following steps that S1, parameters of the pile body, the pile wing and the gravity disc are determined; S2, the pile body is driven to the designed anchoring depth throughpile sinking equipment; and S3, the gravity disc is hung on the mud-water interface near the pile body. Through the gravity disc, the pile surrounding soil body can be strengthened, the size of the pile wing can be decreased, stress of the pile wing can be improved, through the synergistic effect of a single pile, the pile wing and the gravity disc, the passive soil pressure and shearing resistance of the pile surrounding soil body can be fully mobilized, the horizontal carrying capacity of the pile foundation is improved, rotation and lateral displacement of the pile body are lowered, the bending moment of the pile body is reduced, then the diameter and the length of the pile body can be appropriately decreased, the construction cost is lowered, and the construction progress is accelerated.
一种海上风机组合式单桩基础及施工方法，包括桩身、桩翼和重力盘，桩翼位于桩身锚固段上部外壁，重力盘位于桩身的周围土体与海水的交界面，重力盘为刚性结构，重力盘与桩身固定连接或自由连接。本发明组合式单桩基础施工方法包括如下步骤：S1确定桩身、桩翼和重力盘参数；S2利用沉桩设备将桩身打到设计锚固深度；S3将重力盘吊置于桩身附近泥水交界面。本发明重力盘可以强化桩周土体，减小桩翼尺寸，改善桩翼受力，单桩、桩翼和重力盘的协同作用可以充分调动桩周土体的被动土压力和抗剪力，提高桩基的水平承载力，降低桩身的旋转和侧向位移，减小桩身弯矩，进而可适当减小桩身直径和桩身长度，降低工程成本，加快施工进度。
The invention discloses an offshore fan combination-type single pile foundation and a construction method thereof. The offshore fan combination-type single pile foundation comprises a pile body, a pile wing and a gravity disc, the pile wing is located on the outer wall of the upper part of an anchoring section of the pile body, the gravity disc is located on the interface of a surrounding soil body of the pile body and seawater and is of a rigid structure, and the gravity disc and the pile body are fixedly connected or freely connected. The construction method of the combination-type single pile foundation comprises the following steps that S1, parameters of the pile body, the pile wing and the gravity disc are determined; S2, the pile body is driven to the designed anchoring depth throughpile sinking equipment; and S3, the gravity disc is hung on the mud-water interface near the pile body. Through the gravity disc, the pile surrounding soil body can be strengthened, the size of the pile wing can be decreased, stress of the pile wing can be improved, through the synergistic effect of a single pile, the pile wing and the gravity disc, the passive soil pressure and shearing resistance of the pile surrounding soil body can be fully mobilized, the horizontal carrying capacity of the pile foundation is improved, rotation and lateral displacement of the pile body are lowered, the bending moment of the pile body is reduced, then the diameter and the length of the pile body can be appropriately decreased, the construction cost is lowered, and the construction progress is accelerated.
一种海上风机组合式单桩基础及施工方法，包括桩身、桩翼和重力盘，桩翼位于桩身锚固段上部外壁，重力盘位于桩身的周围土体与海水的交界面，重力盘为刚性结构，重力盘与桩身固定连接或自由连接。本发明组合式单桩基础施工方法包括如下步骤：S1确定桩身、桩翼和重力盘参数；S2利用沉桩设备将桩身打到设计锚固深度；S3将重力盘吊置于桩身附近泥水交界面。本发明重力盘可以强化桩周土体，减小桩翼尺寸，改善桩翼受力，单桩、桩翼和重力盘的协同作用可以充分调动桩周土体的被动土压力和抗剪力，提高桩基的水平承载力，降低桩身的旋转和侧向位移，减小桩身弯矩，进而可适当减小桩身直径和桩身长度，降低工程成本，加快施工进度。
Offshore fan combination-type single pile foundation and construction method thereof
海上风机组合式单桩基础及施工方法
10.04.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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