Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Offshore wind turbine composite foundation and foundation reinforcement construction method
The invention relates to an offshore wind turbine composite foundation and a foundation reinforcement construction method. The composite foundation comprises a single-pile foundation body and a peripheral friction body, wherein the peripheral friction body is of a concrete integrated pouring structure with built-in steel bars and is in a circular truncated cone shape; the single-pile foundation body is sleeved with the peripheral friction body; the peripheral friction body makes contact with the upper end of a foundation soil body; vertical construction hole channels which communicate the upper end with the lower end and are used for achieving grouting are formed in the peripheral friction body; a plurality of vertical construction hole channels are evenly distributed on one or more circles of circumference; and a steel pipe nail is connected into each vertical construction hole channel in a pouring mode or fixedly inserted into each vertical construction hole channel, the lower section of each steel pipe nail extends out of the lower end of the peripheral friction body and is inserted into the foundation soil body, and guniting holes are evenly distributed in the pipe wall of eachsteel pipe nail. According to the composite foundation, the contact area between the foundation and a subgrade is increased, grouting reinforcement treatment can be conducted on the soft soil foundation, thus the bearing capacity of the subgrade and the foundation can be improved, integrated construction is achieved, and seabed pretreatment is reduced.
本发明涉及一种海上风机复合基础及地基加固施工方法，复合基础包括单桩基础本体；包括外围摩擦体，为内置有钢筋的混凝土一体浇筑结构，形状为圆台型，外围摩擦体套设在单桩基础本体外，并与地基土体的上端接触，在外围摩擦体上设有连通上下端用于实现注浆的竖向施工孔道，多个竖向施工孔道均布设置在一圈或多圈圆周上；在每个竖向施工孔道内浇筑连接有或后插固有一钢管钉，钢管钉的下段从外围摩擦体的下端伸出、并插入到地基土体中，在钢管钉的管壁上均布设置有喷浆孔。本复合基础增加了基础与地基接触面积，可实现对软土地基进行注浆加固处理，从而可提高地基和基础的承载能力，实现一体化施工，减少海底预处理。
Offshore wind turbine composite foundation and foundation reinforcement construction method
The invention relates to an offshore wind turbine composite foundation and a foundation reinforcement construction method. The composite foundation comprises a single-pile foundation body and a peripheral friction body, wherein the peripheral friction body is of a concrete integrated pouring structure with built-in steel bars and is in a circular truncated cone shape; the single-pile foundation body is sleeved with the peripheral friction body; the peripheral friction body makes contact with the upper end of a foundation soil body; vertical construction hole channels which communicate the upper end with the lower end and are used for achieving grouting are formed in the peripheral friction body; a plurality of vertical construction hole channels are evenly distributed on one or more circles of circumference; and a steel pipe nail is connected into each vertical construction hole channel in a pouring mode or fixedly inserted into each vertical construction hole channel, the lower section of each steel pipe nail extends out of the lower end of the peripheral friction body and is inserted into the foundation soil body, and guniting holes are evenly distributed in the pipe wall of eachsteel pipe nail. According to the composite foundation, the contact area between the foundation and a subgrade is increased, grouting reinforcement treatment can be conducted on the soft soil foundation, thus the bearing capacity of the subgrade and the foundation can be improved, integrated construction is achieved, and seabed pretreatment is reduced.
本发明涉及一种海上风机复合基础及地基加固施工方法，复合基础包括单桩基础本体；包括外围摩擦体，为内置有钢筋的混凝土一体浇筑结构，形状为圆台型，外围摩擦体套设在单桩基础本体外，并与地基土体的上端接触，在外围摩擦体上设有连通上下端用于实现注浆的竖向施工孔道，多个竖向施工孔道均布设置在一圈或多圈圆周上；在每个竖向施工孔道内浇筑连接有或后插固有一钢管钉，钢管钉的下段从外围摩擦体的下端伸出、并插入到地基土体中，在钢管钉的管壁上均布设置有喷浆孔。本复合基础增加了基础与地基接触面积，可实现对软土地基进行注浆加固处理，从而可提高地基和基础的承载能力，实现一体化施工，减少海底预处理。
Offshore wind turbine composite foundation and foundation reinforcement construction method
一种海上风机复合基础及地基加固施工方法
WANG XUEFEI (Autor:in) / LI JIALE (Autor:in) / MA CHENGLIANG (Autor:in)
07.08.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
Offshore wind turbine foundation and construction method thereof
| Europäisches Patentamt | 2022