T/DGGC 021-2022
Technical Standards for Shield Formed Tunnel Strengthening and Segment Repair (English Version)

Standard No.

T/DGGC 021-2022

Language

Chinese, Available in English version

Release Date

2022

Published By

Group Standards of the People's Republic of China

Latest

T/DGGC 021-2022

T/DGGC 021-2022 history

• 2022 T/DGGC 021-2022 Technical Standards for Shield Formed Tunnel Strengthening and Segment Repair