地铁车站盖挖逆作钢管立柱受力机理及工程应用

The stress mechanism and engineering application of steel tube column used in subway station by cover and cut method

以深圳地铁11号线与6号线换乘站松岗站的盖挖逆作法施工为工程研究对象,在介绍盖挖逆作设计方案的基础上,对钢管立柱—围护结构体系进行了受力分析计算,提出了盖挖钢管立柱施工方案,分析了施工的重点难点,最后提出了有效的施工处置措施。

The Shenzhen metro line 11 and line 6’s transfer station Songgang station was taken as the engineering research object. On the basis of cover dig inverse design scheme,analysis and calculate the stress of steel tube columns-retaining structure system. And then,the cover the construction scheme of steel tube columns was proposed. The focus of the construction difficulties was analyzed. In the end,the effective con-struction measure is put forward.