Penerangan
A Geotechnical Investigation is a critical process in engineering and construction that
assesses the properties and behavior of soil and rock beneath the ground at a construction site. This
investigation helps engineers design safe and effective foundations for buildings, roads, and other
structures.
Field Testing
- Boreholes: Drilling boreholes at various locations on the site to obtain samples
- of soil and rock.
- Test Pits: Excavating shallow pits to observe soil and water conditions directly.
- Standard Penetration Test (SPT): A test performed during drilling to determine the resistance of the soil to penetration, giving an indication of its density and strength.
- Cone Penetration Test (CPT): A method of pushing a cone into the soil to measure its resistance at various depths.
- Groundwater Level Measurement: Measuring the depth of groundwater, which can impact foundation design and drainage
Laboratory Testing
- Grain Size Analysis: Determines the distribution of different particle sizes in the soil.
- Atterberg Limits Test: Assesses the plasticity of fine-grained soils.
- Shear Strength Tests: Determines how the soil will behave under stress andloading, important for assessing the risk of soil failure.
- Compaction Tests: Measure the soil's ability to be compacted to ensure a solidfoundation
- Rock Tests:
i. Uniaxial Compression Test:
Purpose: To determine the strength of rock by applying pressure until it breaks.
ii. Point Load Test:
Purpose: The point load test is primarily used to measure the strength of rock material. It helps estimate the uniaxial compressive strength of rock, which is a critical parameter in rock mechanics and engineering projects like foundation design, tunneling, and excavation.
iii. Petrographic Analysis:
Purpose: Petrographic analysis is a vital tool in geology and geotechnical engineering that provides in-depth information about the mineralogical composition, texture, and properties of rocks. It’s essential for evaluating the suitability of rocks for construction, resource extraction, and environmental studies.
- Chemical Analysis: To assess the soil's composition, which is important for determining its suitability for construction, agriculture, or other purposes
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