Site Investigation

SITE INVESTIGATION

Site Investigation is the foundation of every successful construction, mining, and infrastructure project. PT Terra Nusa Prima provides comprehensive field investigations to assess subsurface conditions before project execution. Our studies help clients understand soil, rock, groundwater, and geologic properties that may influence design, construction methods, and long-term performance.

Contact for professional Site Investigation Services​

SITE INVESTIGATION

🏗️ Site Investigation: Complete subsurface assessment for safe and efficient project planning. 🔹 Borehole drilling and sampling for soil and rock characterization. 🔹 In-situ testing including SPT, CPT, DCP, FDT, and PLT. 🔹 Geophysical surveys to map soil layers, groundwater, and subsurface anomalies. 🔹 Groundwater evaluation for dewatering and construction impact analysis. 🔹 Laboratory testing for accurate engineering parameters. 🔹 Detailed engineering reports supporting design, compliance, and construction decisions.

Site Investigation Services

Site Investigation is the foundation of every successful construction, mining, and infrastructure project. PT Terra Nusa Prima provides comprehensive field investigations to assess subsurface conditions before project execution. Our studies help clients understand soil, rock, groundwater, and geologic properties that may influence design, construction methods, and long-term performance.

With advanced equipment, professional interpretation, and standardized procedures, we ensure that all decisions are based on accurate and reliable geotechnical data.

Geophysical team conducting subsurface investigation using resistivity equipment in the field.
Field geotechnical investigation and drilling work performed by PT Terra Nusa Prima.

Scope of Services

Borehole Drilling & Sampling We conduct drilling programs to obtain soil and rock samples for detailed subsurface characterization. Services include:
  • Hand boring and rotary drilling
  • Core recovery and classification
  • Undisturbed and disturbed sampling
  • Stratigraphic logging
Collected samples are used for laboratory testing and geotechnical modeling.
In-Situ Field Testing Field tests are performed to measure soil and rock properties directly on site. Common tests include:
  • Standard Penetration Test (SPT)
  • Cone Penetration Test (CPT/CPTu)
  • Dynamic Cone Penetrometer (DCP)
  • Field Density Test (FDT)
  • Plate Load Test (PLT)
These tests provide real-time geomechanical data essential for engineering design.
Geophysical Surveys When required, geophysical methods are applied to complement borehole and in-situ data. Techniques include:
  • Electrical Resistivity Tomography (ERT)
  • Seismic Refraction
  • Ground Penetrating Radar (GPR)
These non-destructive methods help map:
  • Soil and rock stratigraphy
  • Groundwater conditions
  • Cavities, fractures, and anomalies
Groundwater Evaluation We assess groundwater influence on construction and excavation, including:
  • Water table depth
  • Flow direction
  • Aquifer characteristics
  • Dewatering recommendations
Understanding groundwater conditions reduces the risk of construction delays and failure.
Laboratory Testing Samples obtained from drilling are analyzed in certified laboratories, including:
  • Moisture content
  • Atterberg Limits
  • Particle size distribution
  • Compaction
  • Shear strength tests
  • Consolidation
These results support safe, accurate, and cost-effective design decisions.
Engineering Reporting All investigations are summarized in professional engineering reports containing:
  • Soil and rock profile interpretation
  • Geotechnical design parameters
  • Foundation recommendations
  • Construction considerations
  • Risk and mitigation strategies
Reports are developed to support approvals, compliance, and project execution.

Why Choose PT Terra Nusa Prima

  • High accuracy field investigation

  • Integration of geotechnical, hydrogeological, and geophysical studies

  • Licensed engineers and professional analysts

  • Detailed reporting and technical guidance

  • Proven field experience across mining, infrastructure, and industrial projects

We provide the data you need to build safer, stronger, and more reliable structures.

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