Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method and system for predicting penetration resistance of suction type barrel foundation in sandy soil
The invention discloses a penetration resistance prediction method and system for a suction type barrel foundation in sandy soil, and belongs to the field of offshore wind power suction type barrel foundation in-soil sinking construction. The method comprises the steps that based on the suction type barrel foundation in the sandy soil, the penetration characteristic of the suction type barrel foundation is determined by evaluating the drainage condition, and the penetration resistance of the suction type barrel foundation is predicted; and the outer side friction resistance, the inner side friction resistance and the end bearing capacity of the suction type barrel-shaped foundation are obtained, and the drainage penetration resistance of the suction type barrel-shaped foundation is predicted. On the basis of the limit equilibrium theory, enhancement of effective stress, caused by side wall friction, of a cylinder end soil body is considered, and the result of predicting the self-weight penetration depth is more accurate; meanwhile, the seepage characteristic caused by sand drainage in the penetration process of the barrel type foundation is considered, reduction of effective stress of seepage on soil bodies in the barrel and at the barrel end and increase of effective stress on soil bodies outside the barrel are considered, stress analysis conforms to the actual situation of the barrel type foundation, and prediction of penetration resistance in the suction penetration process is closer to the real situation.
本发明公开了用于砂土中吸力式筒型基础的沉贯阻力预测方法及系统，属于海上风电吸力式筒型基础土中沉放施工领域，包括：基于砂土中吸力式筒型基础，通过评估排水条件，明确吸力式筒型基础的沉贯特性，获取吸力式筒型基础的外侧摩阻力、内侧摩阻力以及端部承载力，对吸力式筒型基础的排水沉贯阻力进行预测。本发明基于极限平衡理论，考虑了侧壁摩擦引起的筒端土体有效应力的增强，对于预测自重沉贯深度的结果更加准确；同时考虑了筒型基础在沉贯过程中，砂土排水引发的渗流特性，考虑了渗流对筒内和筒端土体有效应力的减小，对筒外土体有效应力的增加，受力分析符合筒型基础的实际情况，对于吸力沉贯过程中的沉贯阻力的预测更接近真实情况。
Method and system for predicting penetration resistance of suction type barrel foundation in sandy soil
The invention discloses a penetration resistance prediction method and system for a suction type barrel foundation in sandy soil, and belongs to the field of offshore wind power suction type barrel foundation in-soil sinking construction. The method comprises the steps that based on the suction type barrel foundation in the sandy soil, the penetration characteristic of the suction type barrel foundation is determined by evaluating the drainage condition, and the penetration resistance of the suction type barrel foundation is predicted; and the outer side friction resistance, the inner side friction resistance and the end bearing capacity of the suction type barrel-shaped foundation are obtained, and the drainage penetration resistance of the suction type barrel-shaped foundation is predicted. On the basis of the limit equilibrium theory, enhancement of effective stress, caused by side wall friction, of a cylinder end soil body is considered, and the result of predicting the self-weight penetration depth is more accurate; meanwhile, the seepage characteristic caused by sand drainage in the penetration process of the barrel type foundation is considered, reduction of effective stress of seepage on soil bodies in the barrel and at the barrel end and increase of effective stress on soil bodies outside the barrel are considered, stress analysis conforms to the actual situation of the barrel type foundation, and prediction of penetration resistance in the suction penetration process is closer to the real situation.
本发明公开了用于砂土中吸力式筒型基础的沉贯阻力预测方法及系统，属于海上风电吸力式筒型基础土中沉放施工领域，包括：基于砂土中吸力式筒型基础，通过评估排水条件，明确吸力式筒型基础的沉贯特性，获取吸力式筒型基础的外侧摩阻力、内侧摩阻力以及端部承载力，对吸力式筒型基础的排水沉贯阻力进行预测。本发明基于极限平衡理论，考虑了侧壁摩擦引起的筒端土体有效应力的增强，对于预测自重沉贯深度的结果更加准确；同时考虑了筒型基础在沉贯过程中，砂土排水引发的渗流特性，考虑了渗流对筒内和筒端土体有效应力的减小，对筒外土体有效应力的增加，受力分析符合筒型基础的实际情况，对于吸力沉贯过程中的沉贯阻力的预测更接近真实情况。
Method and system for predicting penetration resistance of suction type barrel foundation in sandy soil
用于砂土中吸力式筒型基础的沉贯阻力预测方法及系统
LIU RUN (Autor:in) / MENG XIANGCHUAN (Autor:in) / LIAN JIJIAN (Autor:in) / CHEN GUANGSI (Autor:in) / WEN FENG (Autor:in) / LIU HUAICHENG (Autor:in)
25.10.2024
Patent
Elektronische Ressource
Chinesisch
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