In recent years, sediment scour near bridge piers and abutment is a serious problem given the highly sensitive issue of flooding due to climate change which cause nationwide concern because it has resulted in more bridge failures than other causes. Fail to present an accurate maximum depth of scour may either lead to an uneconomical design of substructures, or result in scour damage or even bridge failure. As part of this process physical modelling can provide detailed assessment of current and future river work arrangements in a cost effective and timely manner.
Physical modelling of Rivers is principally required to assess the following:
- Potential flood risk.
- Afflux effects on hydraulic structures.
- Calibrate and verify mathematical models.
- Provide assessment of hydraulic adequacy of structures.
- Provide detailed calibration of pertinent hydraulic structures.
- Scour*/deposition characteristics.
- The effect of trash/debris within a system.
Physical Modelling Laboratory (Infrastructure)
- Flow Pumps –04 NOS @ 75 LPS with VFD
- Model tray 1 – 90 X 120 Feet
- Model tray 2 – 120 X 140 Feet
- Generator Set – 65 KVA
- Re-circulation Storage Tank – 350,000 liters
- Measuring Instruments – Laser distance meter, V- notches of different sizes, Acoustic Doppler Velocimeter (ADV), Current meters, Vernier calipers, Screw Gauges, etc.
- Work Stations for ready calculations and modelling
- Site monitoring system with different viewing angles
