Project Description

A large, former industrial site was to be demolished to be replaced by a large combined residential and commercial development. Open spaces, strategic landscaping and other green infrastructure was also required – along with associated road and drainage infrastructure alterations. The site is well known to Land Science, with a previous Phase I Geo-Environmental Assessment having already been carried out.

Land Science was instructed to prepare an intrusive investigation that was required to provide an interpretation of ground conditions with respect to foundations, pavements, soakaways, concrete specification, and excavations. Furthermore, this Phase II intrusive investigation was also required to provide a generic quantitative risk assessment (GQRA) in respect of the proposed redevelopment, adjacent land uses, and the wider environment, in the context of the planning regime.

This involved an extensive programme of Dynamic (windowless) Sampler boreholes, Super Heavy Dynamic Probes (SHDP), and Cable Percussive boreholes to be sunk which were carried out alongside mechanically excavated Trial Pits. Additionally, a series of monitoring wells were installed and monitored on subsequent visits.

In-situ and laboratory geotechnical and geo-environmental tests were carried out as part of the investigation. The Land Science in-house laboratory carried out a large suite of testing for soil classification which included but was not limited to Particle Size Distribution, Water Content, Atterberg Limit (Plasticity Index), and Californian Bearing Ratio (CBR) tests.

    Geotechnical & Geo-Environmental
    Brownfield Redevelopment
    Robertsbridge, East Sussex