TÜV Rheinland excels in conducting onshore geotechnical and geophysical investigations worldwide. With rigorous quality control and industry-leading practices, we provide comprehensive assessments of soil conditions prior to design and construction activities. Our tailored investigations ensure accurate soil characterization, delivering high-quality results for onshore projects. We perform onshore geotechnical and geophysical surveys according to ASTM, BS, DIN EN and/or equivalent standards.
Our Onshore Investigation Services:
Fieldwork:
- Conducting on-site data collection and surveying.
- Performing subsurface exploration through drilling, sampling, and in-site testing.
- Gathering geotechnical and geophysical data using advanced equipment and techniques.
Laboratory Testing:
- Performing thorough analysis of soil and rock samples in accredited laboratories.
- Conducting tests to determine geotechnical properties, strength characteristics, and suitability for construction purposes.
- Utilizing specialized equipment and protocols to ensure accurate and reliable results.
Site Stratigraphy:
- Establishing a comprehensive understanding of the geological and stratigraphic conditions at the project location.
- Analysing soil layers, sedimentation patterns, and subsurface formations.
- Assessing the distribution and characteristics of different soil types and rock layers.
Modelling & Analysis:
- Utilizing advanced software and modelling techniques to simulate and analyse geotechnical behaviour.
- Conducting geotechnical and geophysical analysis to assess soil stability, foundation performance, and potential risks.
- Performing calculations and simulations to predict soil settlement, deformation behaviour, soil bearing capacity and slope stability.
Reports:
- Preparing detailed reports summarizing findings, interpretations, and recommendations
- Presenting comprehensive analysis of geotechnical and geophysical data
- Providing clear and concise documentation of investigation results for design and construction purposes
Through these services, our onshore investigations deliver vital information to characterize soil and subsurface conditions, enabling informed decision-making and efficient project planning.
Onshore Geotechnical Survey:
- Drilling of Boreholes
- Cone Penetration Test (CPT)
- Trial Test Pits
- Piezometer Installation
- Field Tests (SPT, Plate Load, Sand Cone, Proctor Compaction Test and Vane Shear)
Onshore Geophysical Survey:
Surface geophysical methods play a crucial role in site characterization endeavours. Several recommended geophysical survey methods can be conducted at the site, such as:
- Ground Penetrating Radar (GPR) for underground utility detection.
- Electrical Resistivity Tomography (ERT) for groundwater mapping.
- Electrical Resistivity Tests for designing Electrical Earthing and Cathodic Protection Systems.
- Thermal Conductivity Tests for designing buried cables.
- Multichannel Analysis of Surface Waves (MASW) for assessing ground stiffness in geotechnical engineering.
- Microgravity Survey for identifying cavities in structures and potential subsidence risks.
Laboratory Testing:
Lab testing encompasses a range of assess¬ments, including soil index tests, soil strength tests, soil compressibility tests, and chemical tests for soil and water samples.
Soil Index Properties:
- Grain Size Distribution (sieves) and Hydrometer Tests
- Atterberg limits for selected cohesive samples
- Water Content Measurement
- Soil Specific Gravity & Organic Content Tests
- Soil Unit Weight Measurements
- Relative Density Test
Soil Mechanical Properties:
- Odometer Test
- Unconfined Compressive Strength Test
- Swelling Potential Tests
- Expansion Index Tests
- Collapsibility Tests
- Unconsolidated Undrained Triaxial (UUT) Tests
Chemical Tests:
- pH Analysis
- Soil Chemical Analysis
- Water Chemical Analysis
- Soil Carbonate, Sulphate and Chloride Content Analysis
Rock Tests:
- Physical properties
- Unconfined compression strength
- Point load test
Additional lab tests can be specified based on the site investigation, adhering to client specifications and ASTM standards, or equivalent.
Why Choose TÜV Rheinland:
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