<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Dipole-dipole electrical resistivity tomographic method was applied to investigate the subsurface cavities at Staff Welfare Hospital &amp; School Quetta. A total of 890-meter profile line was covered along five smaller profile lines and fracture zones with maximum 21 meters interval. The cavity system along profile line-1 and 2 was very restricted and had no direct impact on infrastructure while major cavity beneath the building was traced at profile line-3 and line-4 thus constituting a ~20m wide cavity system with 3-4 small interconnected cavities between depths of 7 to 21 meters. This system was also traced at profile line-4 at a depth of 10 meters having a reduced width of 10m. At profile line-5, a few other cavities were detected that proved imperceptible due to limitations in data acquisition. To conclude, the cavity systems traced in profile line-3 and profile line-4 were the most perilous ones and are commonly the foremost reason for building collapse.</p></abstract>

Dipole-dipole electrical resistivity tomographic method was applied to investigate the subsurface cavities at Staff Welfare Hospital & School Quetta. A total of 890-meter profile line was covered along five smaller profile lines and fracture zones with maximum 21 meters interval. The cavity system along profile line-1 and 2 was very restricted and had no direct impact on infrastructure while major cavity beneath the building was traced at profile line-3 and line-4 thus constituting a ~20m wide cavity system with 3-4 small interconnected cavities between depths of 7 to 21 meters. This system was also traced at profile line-4 at a depth of 10 meters having a reduced width of 10m. At profile line-5, a few other cavities were detected that proved imperceptible due to limitations in data acquisition. To conclude, the cavity systems traced in profile line-3 and profile line-4 were the most perilous ones and are commonly the foremost reason for building collapse.

Subsurface Cavity Detection Using Electrical Resistivity Tomography (Ert); A Case Study from Southern Quetta, Pakistan

Pakistan Journal of Geology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Dipole-dipole electrical resistivity tomographic method was applied to investigate the subsurface cavities at Staff Welfare Hospital & School Quetta. A total...

Subsurface Cavity Detection Using Electrical Resistivity Tomography (Ert); A Case Study from Southern Quetta, Pakistan

Published Online: Jan 05, 2021

Page range: 101 - 105

DOI: https://doi.org/10.2478/pjg-2020-0012

Keywords
Natural disaster, Quetta Valley, Geophysical Techniques

© 2020 Syed Ali Abbas et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Subsurface Cavity Detection Using Electrical Resistivity Tomography (Ert); A Case Study from Southern Quetta, Pakistan

Published Online: Jan 05, 2021

Page range: 101 - 105

DOI: https://doi.org/10.2478/pjg-2020-0012

KeywordsNatural disaster, Quetta Valley, Geophysical Techniques

© 2020 Syed Ali Abbas et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
Natural disaster, Quetta Valley, Geophysical Techniques