Assessment of quarry volume using 2-D resistivity imaging method

• Main Authors: Saad, Rosli, Mohamad, Edy Tonnizam, M. M., Nordiana, I. N., Azwin, Mohd. Akip Tan, Norsalkini
• Format: Conference or Workshop Item
• Published: 2013
• Subjects: TA Engineering (General). Civil engineering (General)
• Online Access: http://eprints.utm.my/id/eprint/50920/; http://aip.scitation.org/doi/pdf/10.1063/1.4803589

A geophysical survey was carried out at Masai quarry, Johor Darul Takzim to estimate the volume of overburden and rock can be excavated. A total of 6 survey lines were conducted in the study area using 2-D resistivity imaging; carried out with pole-dipole array, 5 m minimum electrode spacing with ABEM SAS4000 system. The results show the study area was divided into two main zones. The first zone was top layer/residual soil with resistivity value of <700 Ωm. It is consisted of saturated zone with resistivity value of 30-100 Ωm and boulders with resistivity value of > 700 Ωm. The second zone was fractured granitic bedrock with resistivity value of >1000 Ωm and depth of 10-75 m. The overburden consists of residual soil which mixed with boulders. The estimated volume of the overburden is 9,811,831.15 m3.