Slope Stability Assessment at Holiday Park, Dorset
It was proposed to locate several holiday lodges on the bank of a lake at a holiday park in Dorset.
Ruddlesden’s Phase 1 geotechnical assessment indicated that the bank was likely remnant from historical quarrying works and that it was likely to comprise re-worked natural soils (made ground).
As part of a geotechnical investigation of the site, slope stability modelling was undertaken to ascertain the effect the proposed lodges would have on the bank’s stability.
The stability modelling indicated that the placement of the lodges would likely lead to instability of the bank in the long term.
It was recommended that the lodges be relocated, their foundations be sited below the posturized slip-surface, the existing bank material be excavated and replaced with engineered fill, or the bank be retained, to mitigate the risk of landslip.