土压平衡盾构隧道管片错台原因及对策

Causes and Countermeasures of Earth Pressure Balance Shield Tunnel Segment Dislocation

盾构管片错台是成型隧道相邻管片之间接缝处的高差,由错台引起管片破裂、隧道漏水等问题对日后运营的影响日益显现,影响百年地铁工程使用质量。文章结合合肥市轨道交通3号线祁门路站～大剧院站区间右线施工实际情况,分析管片错台原因,对管片错台提出相应的对策。

The wrong platform of the shield segment is the height difference between the joints and the adjacent segments of the forming tunnel. The problems such as the rupture of the tube and the leakage of the tunnel, which are caused by the wrong platform, have an increasingly apparent influence on the future operation, which affects the quality of the use of the subway project for a hundred years. In this paper, according to the actual situation of the construction of the right line of the Qun Road station to the Grand Theatre station of Hefei railway line 3, the reasons for the wrong platform are analyzed and the corresponding countermeasures are put forward.