Geophysical surveying is a non-invasive method used to study subsurface conditions by measuring physical properties of the ground, such as electrical resistivity, seismic waves, and magnetic fields. It helps reveal what lies beneath without the need for excavation or drilling.
In Malaysia, geophysical surveys are widely used for construction planning, groundwater detection, mineral exploration, slope hazard studies, and environmental assessments. These techniques are fast, cost-effective, and ideal for covering large areas with minimal disruption.
At Geotechnica, we offer a range of geophysical surveying services including electrical resistivity imaging (ERT), seismic refraction, MASW, and ground-penetrating radar (GPR)—delivering accurate subsurface data to support smart, safe, and sustainable engineering decisions.
OUR SERVICES
01
Seismic surveys use vibrations or waves to map subsurface layers by analyzing how they travel through different materials.
02
Gravity surveys measure variations in Earth’s gravity to detect changes in subsurface density, useful for mapping large-scale structures.
03
EM surveys detect conductivity and magnetic changes in the ground to locate water, minerals, or buried objects.
04
Electrical resistivity surveys inject current into the ground and measure resistance to map soil layers, water zones or voids.
05
Magnetic surveys measure variations in Earth’s magnetic field to locate buried ferrous materials or geological features.
06
GPR sends radar waves into the ground to detect shallow features like pipes, voids, and pavement thickness.
CASE STUDIES
It seems we can't find what you're looking for.
Tools & Software
Industries
Maps pipeline corridors and monitors terrain for safe infrastructure planning.
Generates 3D terrain models for volume calculations, pit monitoring, and site planning.
Supports road, rail, and bridge design with precise elevation and surface data.
Inspects powerline corridors & detects vegetation encroachment for safety.
Measures canopy height, tree density, and biomass for resource management.
Monitors coastal erosion, flood zones, and conducts environmental impact studies.
WHY US
1
We are euipped with latest and high-end LiDAR equipment and software to get 100% accuracy of data & statistics.
2
Since 2020, we had handled 20+ state and national-level projects through LiDAR in geotechnical and geo engineering.
3
Our engineers & surveyors are international and local graduate with numbers of experience in geo engineering.
4
You will received 100% accurate reporting documents and able to get GIS integration needed from our team.
FAQ
It’s a non-invasive way to study what’s underground using physical signals like waves, currents, or magnetism.
It helps detect soil layers, rocks, voids, or water—without digging or drilling.
Common methods include seismic refraction, electrical resistivity, GPR, electromagnetic (EM), and magnetic surveys.
Before construction, during slope assessments, for groundwater mapping, or mineral exploration.
Depending on the method, it can detect from a few meters up to hundreds of meters deep.
Yes. It’s non-destructive and ideal for developed or sensitive sites.
GPR uses radar waves for shallow features, while resistivity uses electric current for deeper soil profiling.
Yes. Methods like electrical resistivity and EM surveys are effective for locating aquifers and water tables.
Small sites may take a few hours; larger or deeper studies may take 1–3 days.
We combine advanced tools with expert interpretation to deliver fast, reliable subsurface data tailored to your project.
gallery
Integrity | Dedication | Excellence | Adaptability
www.geotechnica.com.my
Navigation Panel
Contact Us
Geotechnica Sdn Bhd
Wisma ESO No. 3-2,
Puchong Gateway Square,
Jalan Suria Puchong 4,
Pusat Perniagaan Suria Puchong,
47110 Puchong, Selangor
Tel: 03-5569 7765
Email: admin@geotechnica.com.my
All rights reserved. Copyright © 2026 Geotechnica Sdn Bhd