针对济南轨道交通R1线强透水砂卵石地层,结合具体地铁车站围护结构,阐述了套管咬合桩的应用情况。总结了该工艺的施工要点,梳理归纳了施工中遇到的具体问题及处理措施。
Considering the sand and gravel strata condition of Ji' nan Rail Transit R1, combined with the foundation excavation support structure in practical engineering, application of casing bitten piles in Ji' nan is introduced. In this paper, key points of construction are studied, practical issues and treatment measures during the construction are summarized.