Ⅴ级微风化板岩层车站主体围护结构施工工艺

The construction technology of station main retaining structure of Ⅴ level weak weathering rock stratum

分析了Ⅴ级微风化板岩层车站主体围护结构的施工工艺现状,并以长沙市某地铁车站为例,介绍了地下连续墙的优化设计方案,并阐述了S60A成槽机+冲击钻成孔的施工工艺,提出了沉渣的控制措施,达到了预期的施工效果。

This paper analyzed the construction technology situation of station main retaining structure of Ⅴ level weak weathering rock stratum,and taking a subway station in Changsha as an example,introduced the optimization design scheme of underground continuous wall,and elaborated the construction technology of S60 A slot machine ＋ impact drill bore,put forward the sediment control measures,achieved expected construction effect.