Pneumatic piezometers are used to measure pore water pressure in saturated soils. Applications include: Monitoring pore pressures to determine safe rates of fill or excavation. Monitoring pore water pressures to determine slope stability. Monitoring the effects of dewatering systems used for excavations. Monitoring the effects of ground improvement systems such as vertical drains and sand drains. Monitoring pore water pressures to check the performance of earth fill dams and embankments. Monitoring pore water pressures to check containment systems at land fills and tailings dams

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