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Dynamic Load Testing The Wash Tide Gauge.

 

In May 2015 Allnamics performed Pile Driving Analysis (PDA) during the installation of the monopile foundation for The Wash Tide Gauge (WTG), near King’s Lynn, UK. Monitoring was executed using the PDR-system developed by Allnamics.TheWash1

 

The location of the Tide Gauge is in the waters of The wash National Reserve, approx. 18 km Northwest of King’s Lynn and approx. 12 km North-North-East of Sutton Bridge, in English territorial waters. The length of the monopile is 40.5 m with a diameter of 2 m. The pile was stabbed using a PVE105M vibrator and impact driven to design depth with an IHC S500.

 

Monitoring was executed using Allnamics’ wireless PDR system. Because the pile head submerges at high tide, the pile has been instrumented with Under Water (UW) accelerometers and strain transducers for performing Pile Driving Analysis. Prior to transport to the job site the sensors and sensor cables were mounted on the pile. On the day the pile was driven into the sea bed the PDR was mounted and connected to the sensors. The system recorded for each hammer blow all relevant data, incl. the transferred energy of the hammer, the stresses in the pile and the dynamic pile resistance. The testing campaign also involved subsequent Signal Matching at End Of Driving (EOD) in order to calculate the pile capacity. Signal Matching is performed with Wave EQuation software AllWave-DLT, developed by Allnamics.

 

Are you I nterested in the PDR-system and AllWave-DLT? Download the brochures!

 

Off course you can always contact us.

 

Sensors just above the waterline

Sensors just above the waterline

 

Sensors going under water

Sensors going under water

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