Severe deformation occurred at the siluric stratum at the ridge of Wushaoling Tunnel, causing splitting of primary lining and even exceeding clearance limit.

乌鞘岭隧道岭脊段志留系地层千枚岩夹板岩地段，施工中发生大变形，初期支护开裂破坏甚至侵限。

youdao

Based on gray system, programming the software, which can be used to forecast the final clearance displacement of tunnel according to some data of monitoring, named GM-TUNNEL.

根据灰色理论编写了围岩收敛位移的预测程序GM - TUNNEL，预测收敛位移测试点的最终收敛位移。

youdao