Abstract The Tuanshan No.1 fault of the Nanchong tunnel, which is mainly made up of fault rubble, is an active
holocene fault. During tunnel construction, serious surface subsidence and mud burst happened. This paper introduces the whole event process and presents corresponding measures in detail, such as backfilling at surface collapsed cavity, phased sludge cleaning inside the tunnel, and grouting consolidation with sulphate aluminium cement.
Keywords ��
Tunnel Tunel fracture zone Mud bursting Sulphate aluminium cement Grouting consolidati
Abstract ��
The Tuanshan No.1 fault of the Nanchong tunnel, which is mainly made up of fault rubble, is an active
holocene fault. During tunnel construction, serious surface subsidence and mud burst happened. This paper introduces the whole event process and presents corresponding measures in detail, such as backfilling at surface collapsed cavity, phased sludge cleaning inside the tunnel, and grouting consolidation with sulphate aluminium cement.
Keywords ��
Tunnel Tunel fracture zone Mud bursting Sulphate aluminium cement Grouting consolidati
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2017, Vol. 54 