Adhar Instruments & Services

Sector 10, Noida, Uttar Pradesh

Uplift pressure meters are installed in foundation gallery of dam to monitor the uplift water pressure acting on foundation. It consists of reducers, T-assembly, cock valves, nipples and Burdon Pressure Gauge. The vibrating wire sensor can also be used at the place of Burdon Pressure gauge, if the data is to be recorded in automatic mode.
Accessories:Raiser Pipe : GI of PVC, diameter 50mm length 1m, 2m, 3m.Perforated Section : GI or PVC, diameter 50mm length 1m

Vibrating wire piezometer is standard piezometer, which can be used in all applications. It is very simple in installation and can be installed at multilevel too. This allows direct grouting using cement, bentonite grout. The application includes: Monitoring pore water 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 pressures to check the performance of earth fill dams and embankments. Monitoring pore pressures to check containment systems at land fills and tailings dams.

Over range : 200% full scaleMaterial : Stainless SteelDiameter : 20mmTemperature Range : -20 to +80C

Casagrande porous tube piezometers are used to monitor piezometric water levels. Observation wells are used to monitor ground water levels. Water level readings are typically obtained with a water level indicator. Typical applications include:

• Monitoring pore-water pressure to determine the stability of slopes, embankments, and landfill dykes.
• Monitoring of ground improvement techniques such as vertical drains, sand drains, and dynamic compaction.
• Monitoring dewatering schemes for excavations and underground openings.
• Monitoring seepage and ground water movement in embankments, landfill dykes, and dams.
• Monitoring water drawdown during pumping tests.

SpecificationPorous Tube Piezometer is made of carborundum tube of length 200mm, 38mm OD, 6mm wall thickness, total length 600mm with tie rods and brass mesh.
Stand Pipe : 25mm Od, 17mm Id, 3m longProtective Pipe : 100mm dia, 1m long with protective lock.

Standpipe piezometers are used to monitor piezometric water levels. Observation wells are used to monitor ground water levels. Water level readings are typically obtained with a water level indicator. Typical applications include:

• Monitoring pore-water pressure to determine the stability of slopes, embankments, and landfill dykes.
• Monitoring of ground improvement techniques such as vertical drains, sand drains, and dynamic compaction.
• Monitoring dewatering schemes for excavations and underground openings.
• Monitoring seepage and ground water movement in embankments, landfill dykes, and dams.
• Monitoring water drawdown during pumping tests.

SpecificationStand pipe Piezometer is made of 50mm dia, 1 meter long perforated section PVC Pipe covered with brash mesh.The 50mm dia 3 meter long raiser pipe is used to achieve the desired depth of piezometer. Suitable coupling is used to join the raiser pipe to each other.

The VW embedment jointmeter is used to monitor movement at joints in mass-concrete structures such as abutments, foundations, and dams.

Vibrating wire triaxial jointmeters are designed to monitor the relative displacement of two adjacent surfaces in three orthogonal directions. The typical application of triaxial jointmeter is monitoring of movement at constructions joints in concrete dam, tunnels and tanks or masonry structures.

Mechanical triaxial jointmeter is used to monitor the relative displacement of two adjacent surfaces in three orthogonal directions. The data is being recorded using digital depth gauge manually.

Vibration measuring instruments are used in construction work, mining, blasting, demolition or other works where vibration cannot be avoided. Depending on the requirement of monitoring the transducers are chosen. They are available in following frequency ranges: