Geoelectric / Resistivity Survey

Survei Geolistrik

Geoelectric survey is a geophysical method that measures the resistivity of rocks and soil beneath the surface. By injecting electrical current into the ground through electrodes and measuring the resulting potential difference, we can map the resistivity distribution both vertically and laterally.

Non-destructivePenetration up to 300 m2D & 3D resultsCost efficientFast & accurate

Methods & Equipment

Wenner Array

Symmetric configuration for lateral mapping and apparent resistivity determination. Suitable for shallow to medium depth surveys.

Schlumberger Array

Vertical Electrical Sounding (VES) configuration for determining depth of rock layers and aquifers.

Dipole-Dipole

Configuration with high lateral resolution, ideal for detecting vertical structures such as faults and cavities.

Pole-Dipole

Asymmetric configuration with greater depth range, suitable for deep surveys.

Equipment Used

ABEM Terrameter LS 2

ABEM Terrameter SAS 4000

ARES II Multi-electrode Resistivity System

Stainless steel electrodes & multi-core cables

Geodetic GPS for survey point positioning

RES2DINV & RES3DINV data inversion software

Applications & Use Cases

Groundwater potential exploration and mapping

Building and infrastructure foundation investigation

Slip surface detection in landslide-prone areas

Seawater intrusion mapping in coastal areas

Soil and groundwater contamination investigation

Mineral and rock exploration

Well drilling planning

Environmental impact assessment (EIA)

Standards & Regulations

SNI 2818:2020 — Geoelectric Resistivity InvestigationASTM G57 — Standard Test Method for Field Measurement of Soil ResistivityBS 1377-3 — Methods of Test for SoilsSNI 8460:2017 — Geotechnical Design Requirements

What You Receive

1Survey point location map and electrode configuration
22D resistivity cross-section from inversion
3Resistivity distribution map per depth
4Subsurface geological and hydrogeological interpretation
5Technical recommendations for project planning
6Complete report per SNI standards

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