GB/T 43991-2024
Active
DB61/T 1417-2021
Active
Shaanxi ProvinceLocal standards
DB61/T 1417-2021 "Drainage Tunnel Construction Ventilation Techniques Specification"
DB61/T 1417-2021 "Drainage Tunnel Construction Ventilation Techniques Specification"
Basic Information
Standard Code:
DB61/T 1417-2021
Standard Type:
Local standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Highway protection and maintenance
ICS Name:
\nTunnel construction
Publish Date:
2021-01-19
Implement Date:
2021-02-19
Pages:
21 pages
Scope
This document is applicable to the design, implementation, and management of ventilation systems for hydraulic tunnels within Shaanxi Province. For tunnels with a ventilation length exceeding 7.5 km using the drilling and blasting method, and tunnels with a ventilation length exceeding 16 km using the TBM method, a special study on construction ventilation is required.
Development Information
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