Deterministic seismic hazard assessment of a long mountainous road tunnel: a case study of Lowari Tunnel, Pakistan

This study aimed to perform a comprehensive Deterministic Seismic Hazard Assessment (DSHA) to quantify the Peak Ground Acceleration (PGA) values for the Lowari Tunnel region. Twelve thrust faults in the vicinity of the tunnel were evaluated using an updated earthquake catalog from 25AD to 2022. The...

Full description

Saved in:
Bibliographic Details
Published in:Environmental earth sciences 2024-05, Vol.83 (10), p.303, Article 303
Main Authors: Khan, Jehanzeb, Ahmed, Waqas, Waseem, Muhammad, Shah, Syed Tanvir, Khan, Sarfraz, ur Rehman, Qasim, Islam, Ihtisham, Janjuhah, Hammad Tariq, Kontakiotis, George
Format: Article
Language:English
Subjects:
Biogeosciences
Earth and Environmental Science
Earth Sciences
Earthquakes
Environmental Science and Engineering
Fault lines
Geochemistry
Geological faults
Geological hazards
Geology
Ground motion
Hazard assessment
Hydrology/Water Resources
Original Article
Seismic activity
Seismic hazard
Seismic response
Terrestrial Pollution
Thrust faults
Tunnels
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This study aimed to perform a comprehensive Deterministic Seismic Hazard Assessment (DSHA) to quantify the Peak Ground Acceleration (PGA) values for the Lowari Tunnel region. Twelve thrust faults in the vicinity of the tunnel were evaluated using an updated earthquake catalog from 25AD to 2022. The PGA values were calculated for each thrust fault and compared with the designed value of 0.5 g from the feasibility stage of the tunnel. The study demonstrated that all twelve thrust faults exhibited PGA values below 0.5 g, indicating a low-to-moderate seismic hazard in the region. The maximum PGA value obtained in this study was 0.4 g, which is well below the maximum designed value, indicating that the tunnel is expected to withstand the ground motion values projected to result from high-magnitude earthquakes in the region. These findings hold significant importance as they provide crucial insights into assessing the long-term sustainability of the Lowari Tunnel, situated in one of the world's most seismically active zones.
ISSN:1866-6280
1866-6299
DOI:10.1007/s12665-024-11625-y