A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Quantifying Cavity Through Volumetric Study by Resistivity Images
Abstract The complexity of karst system, referring to its geological and hydrological characteristics can be categorized among the most fragile and vulnerable environments in the world. Karst voids are commonly a major engineering risk associated with construction in areas underlain by carbonate rocks. Due to karst unique characteristics to exhibit sudden change in subsurface conditions, extensive geotechnical exploration is needed in order to achieve the best geotechnical results. A site investigation that can provide clearer picture of the overall underground condition should be carried out in order to overcome the problems related to karst void, such as cavity profiling. This study anticipated to determine the subsurface profile and investigate the underground cavities in limestone areas by electrical resistivity method and using the simulation of Voxler software. An electrical resistivity test was conducted at a proposed site at Jalan Sultan Ismail, Kuala Lumpur. The subsurface profile of the selected study area was successfully analyzed and determined from 2-D resistivity images, including identification of potential cavities and voids. The 2-D resistivity images and 2-D oblique images (sliced images from 3-D model) show similar subsurface profile indicating that the Voxler software is suitable and flexible to model the 2-D resistivity images to 3-D images. The potential cavity volume calculation was also successfully calculated.
Quantifying Cavity Through Volumetric Study by Resistivity Images
Abstract The complexity of karst system, referring to its geological and hydrological characteristics can be categorized among the most fragile and vulnerable environments in the world. Karst voids are commonly a major engineering risk associated with construction in areas underlain by carbonate rocks. Due to karst unique characteristics to exhibit sudden change in subsurface conditions, extensive geotechnical exploration is needed in order to achieve the best geotechnical results. A site investigation that can provide clearer picture of the overall underground condition should be carried out in order to overcome the problems related to karst void, such as cavity profiling. This study anticipated to determine the subsurface profile and investigate the underground cavities in limestone areas by electrical resistivity method and using the simulation of Voxler software. An electrical resistivity test was conducted at a proposed site at Jalan Sultan Ismail, Kuala Lumpur. The subsurface profile of the selected study area was successfully analyzed and determined from 2-D resistivity images, including identification of potential cavities and voids. The 2-D resistivity images and 2-D oblique images (sliced images from 3-D model) show similar subsurface profile indicating that the Voxler software is suitable and flexible to model the 2-D resistivity images to 3-D images. The potential cavity volume calculation was also successfully calculated.
Quantifying Cavity Through Volumetric Study by Resistivity Images
Awang, Haryati (author) / Khalik, Yunika Kirana Abdul (author) / Raksmey, May (author)
InCIEC 2015 ; 403-414
2016-01-01
12 pages
Article/Chapter (Book)
Electronic Resource
English
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