通过对长沙地铁1号线2标北辰三角洲站~开福寺站区间内板岩地段的监测与分析得出,盾构在板岩地层掘进过程中的管片普遍存在上浮现象,通过施工过程中分析总结,采取相应措施可减少在该类地层下管片的上浮。 Through the monitoring and analysis of the slate area in the section of Beichen Delta Station ~ Kaifu Temple Station, No. 2 of Changsha Metro Line 1, it is found that there is a common phenomenon that the shields are floating up during the tunneling of slate strata. Through the construction process Analysis concluded that the corresponding measures to reduce the type of layer in the tube under the float.