Using the Information Quantity Method to Assess the Regional Risk of Highway Slope to Improve the Level of Risk Management
Table 5
General national and provincial road slope classification evaluation system [28].
Slope classification and evaluation level
Level 1
Level 2
Level 3
Level 4
(Stable)
(Basically stable)
(Local unstable)
(Unstable)
Engineering geological condition
Very good
Good
General
Very poor
Adaptability of protection engineering
Fit
Basic fit
Less fit
Not fit
Degree of hazard
No or light
Nonserious
More severe
Serious
The overall evaluation
Overall stability is good, and the slope is stable
Overall stability is good, and local nonstructural damage exists but does not affect the overall stability. No impact on highway traffic operations
Overall stability is general, local structural damage, further development will affect the overall stability, temporarily does not affect traffic
Overall stability is poor or has been damaged, serious structural diseases occur, and there is a slump, collapse, overturn, and other overall damage risks
