Detection of Anomalies in Diaphragm Walls

If a calamity with a retaining wall occurs, the impact on surrounding buildings and infrastructure is at least an order of magnitude more severe than without the calamity. In 2005 and 2006 major leaks in the retaining walls of underground stations in Amsterdam and Rotterdam occurred. After these cases had been thoroughly studied it was concluded...

Detection of Anomalies in Diaphragm Walls

If a calamity with a retaining wall occurs, the impact on surrounding buildings and infrastructure is at least an order of magnitude more severe than without the calamity. In 2005 and 2006 major leaks in the retaining walls of underground stations in Amsterdam and Rotterdam occurred. After these cases had been thoroughly studied it was concluded...

Detectie van afwijkingen in diepwandvoegen

In Nederland werden diepwanden beschouwd als een veilige en bewezen technologie voor de kerende constructie van een diepe ontgraving. Door de grote lekkages die zich in de metro bouwprojecten in Amsterdam en Rotterdam voordeden, is de perceptie van het risicoprofiel van de diepwand veranderd.

Detecting defects in diaphragm walls prior to excavation

Recent incidents with leaking diaphragm walls during construction of subway lines in Amsterdam and Rotterdam (Netherlands) have led to reconsideration of the diaphragm wall as a retaining wall construction for deep excavations. In our opinion the joints between the panels are the weak spot. During concrete pouring the concrete should replace the...