What specific subsurface issues were revealed by Ground Penetration Radar?

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Ground Penetration Radar Findings Not Fully Detailed

The investigation into the Masjid India sinkhole incident utilised Ground Penetration Radar (GPR) equipment to map the geological strata and subsurface utility systems. However, the specific issues or detailed findings revealed by the GPR regarding these subsurface elements have not been elaborated upon in the provided information. The GPR was employed as part of the broader subsurface investigation to aid in a comprehensive recovery process.
Geological Context of the Sinkhole Area

The area where the sinkhole occurred is geologically characterised by schist, phyllite, and quartzite rocks belonging to the Kenny Hill Formation. This geological composition is part of the metasedimentary rocks found within Kuala Lumpur, which also includes granite and other schist formations.
Subsurface Investigation Methods

The Department of Mineral and Geoscience Malaysia (JMG) utilized Ground Penetration Radar (GPR) equipment as a key tool in their subsurface investigation of the Masjid India incident area. This method aimed to provide a visual representation of the underground environment, including geological layers and existing utility infrastructure.
Broader Geological Mapping Initiatives

Beyond the specific incident, initiatives like the Greater KL Sub-Surface Geological Mapping Project are underway to enhance the understanding of the Klang Valley's subsurface conditions. This project, which covers 10 local authorities, aims to build upon existing data, such as that from the 3DKL project, by improving subsurface data for Kuala Lumpur.

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What specific subsurface issues were revealed by Ground Penetration Radar?

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