Fylde Coast outfall - pipeline stability assessment
Northwest Water, supported by Halcrow, were investigating the exposure and potential partial floatation of a major outfall pipeline on the Fylde Coast in Lancashire. Northwest Water asked HR Wallingford for specialist support in diagnosing the causes of the exposure and in designing a remedial solution.
The scope of work included extensive assessment of long-term stability of trench backfill. The study comprised field measurement (sedimentological and geotechnical investigations), laboratory tests, numerical modelling of erosion and wave-induced liquefaction and overall interpretation.
Northwest Water /Halcrow
1999 – 2001