半圆体桶式基础组合导堤结构的研究与应用

Research and application of composite diversion dike structure with semi-circular bucket-based

桶式基础结构是一种适用于近海软土地基的新型结构,在连云港徐圩防波堤中成功应用。长江口一期整治工程半圆体实施的成功经验,利用半圆体结构的导流、抗波浪优势,结合桶式基础的稳定性,提出一种新型的半圆体桶式基础组合导堤结构。结合长江口南槽九段沙导流堤工程,根据理论分析和试验研究,得出一致结论:半圆体桶式组合导堤结构安全可靠,位移可控,施工简单,绿色环保,其设计方法、试验研究及研究结论为类似工程设计提供借鉴,并将研究成果应用工程实践。

Bucket-based structure is a new type of structure suitable for offshore soft soil foundation, which has been successfully applied in Xuwei dike of Lianyungang. Based on the successful experience of the semi-circular structure in the Yangtze estuary phase I regulation project, a new type of semi-circular bucket-based composite diversion dike structure is proposed, which takes the advantages of diversion and wave resistance of the semi-circular structure and combines the stability of the bucket-based. Based on theoretical analysis and experimental study of the Jiuduansha diversion dike project in the south channel of the Yangtze estuary, it is concluded that the semi-circular bucket composite dike is safe, reliable, controllable in displacement, simple in construction and green in environmental protection. Its design method, experimental research and research conclusions can provide a reference for similar engineering design, and the research results will be applied to engineering practice.