韩国某深基坑支护工程可拆式锚索类型选择研究

Type Selection Research of Removable Anchor Cable for Deep Foundation Excavation Support Project in Korean

韩国海云台LCT综合体项目深基坑支护工程,具有基坑开挖深、开挖体量大、断面分散、场地狭小、地下水位高和环境保护严格的特点,为保证深基坑支护的整体安全性与可靠性,工程采用地下连续墙与可拆除式锚索作为主要的支护体系。从试验施工、经济性分析、现场施工状况等角度对2类锚索进行了分析比较,阐述了锚索选型的要点,明确了本工程施工用锚索的类别,为锚索的合理选型积累了经验。

The deep foundation excavation project found in Haeundae LCT project has some characteristics including deep excavation,large amounts of excavation,narrow construction site,high underground water level,tough environmental rules and the shape of land where cutting surface is widely distributed. For the security and safety of deep foundation excavation,diaphragm wall and removable anchor cable were adopted as the support system. This paper compared two types of anchor cables from the test construction,economic analysis,on-site construction status and other perspectives,introduced the key point of the anchor cable selection and confirmed the anchor cable used for construction, which accumulated the experience for rational selection of anchor cable.