GB/T 43991-2024
Active
DB34/T 1088-2019
Active
Anhui ProvinceLocal standards
DB34/T 1088-2019 Road tunnel construction stage surrounding rock grading regulations
DB34/T 1088-2019 Road tunnel construction stage surrounding rock grading regulations
Price:
$ 30
Basic Information
Standard Code:
DB34/T 1088-2019
Standard Type:
Local standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Bridge and culvert engineering
ICS Name:
\nTunnel construction
Publish Date:
2019-12-25
Implement Date:
2020-01-25
Pages:
22 pages
Scope
This standard specifies the terminology and symbols for the classification of surrounding rock in the construction phase of highway tunnels, as well as the indicators and methods for classifying surrounding rock. This standard is applicable to highway tunnels constructed using the mining method under normal surrounding rock conditions.
Development Information
Replace the following standards
DB34/T 1088-2009
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