DB34/T 2558-2015 Highway Construction Standardization Guide for Tunnel Engineering

Scope

This standard specifies the terms and definitions, general principles, construction preparation, portal and open-air tunnel works, tunnel excavation, initial support and auxiliary engineering measures, reverse arch and paving, waterproofing and drainage, secondary lining, small-clearance tunnels and continuous arch tunnels, auxiliary tunnels and ancillary works, tunnel pavement construction, advanced geological forecasting and monitoring measurement, and safety production and environmental protection for highway tunnels in Anhui Province, which are mainly excavated by drilling and blasting. The standard is applicable to the construction of new, modified, and expanded highway tunnels in Anhui Province. The construction of first-class highways and other grade highways can be referenced for implementation.

Development Information

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