浅覆土砂卵石地层盾构穿桥技术

Shield tunneling technology in shallow overburden sand and pebble stratum

呼市地铁2号线百合路站-新店站盾构施工,地质为砂卵石地层,稳定性差,且覆土埋深6.0m左右,其间需下穿高架桥,对盾构施工技术要求极高。本文结合盾构施工过程中的实际情况,分析研究浅覆土砂卵石地层中的盾构穿桥技术。

In the shield construction of Baihelu station-Xindian station of Hohhot Metro Line 2, the geology is sandy pebble stratum with poor stability, and the buried soil depth is about 6.0 m, during which the viaduct needs to be penetrated, so the technical requirements for shield construction are very high. In this paper, combined with the actual situation in the process of shield construction, the shield technology in the shallow sand gravel stratum is analyzed and studied.