The process of checking whether a design meets its specified requirements and functions as intended. It ensures accuracy, safety, and compliance before moving to construction, manufacturing, or implementation.
An instrument that measures pore water pressure using compressed gas and diaphragm movement. Often used in embankments, dams, and foundations for long-term stability monitoring.
A geotechnical instrument used to monitor structural movement in three dimensions (X, Y, Z). Unlike sensors that stream data, it is read manually or automatically by a total station. Commonly installed on structures, railways, or with inclinometers, it provides accurate and easy-to-interpret displacement data.
Device that tracks ground settlement or heave by measuring the position of magnetic rings along a borehole. It helps assess deep ground movement at different soil or rock layers.
Survey markers installed inside tunnels to monitor settlement and ground movement over time. These points provide reference data to ensure tunnel safety and structural integrity.
A series of sensors based on Micro-Electro-Mechanical Systems (MEMS) technology, linked together to measure ground or structural deformation. Each node records tilt or inclination, and when combined, the chain provides a detailed profile of displacement or settlement along its length. They are commonly used in geotechnical monitoring of slopes, tunnels, embankments, and foundations.
RTS is an advanced surveying instrument that automatically tracks and measures targets like prisms without manual operation. It records precise 3D coordinates (X, Y, Z) over time, making it widely used in geotechnical monitoring, construction, and structural health assessments.
A derived instrument is not a physical sensor but a virtual one that calculates parameters using data from multiple instruments. For example, convergence (distance change between two points) and differential settlement (relative movement between two points) are derived values computed from sensors like 3D prisms or leveling points. Such instruments enable advanced data modeling and provide a clearer understanding of complex site behavior.
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