DCE were instructed by London Southend Airport to undertake an assessment of the existing hardstanding and sub-base material, as well as the underlying subgrade ground conditions along the taxiways. The assessment was undertaken with respect to geotechnical issues relevant to the hardstanding surface.

An intrusive investigation was carried out in order to identify the thickness and condition of the existing hardstanding, to confirm the nature of the geology beneath the site, in-situ and through laboratory, to assess the geotechnical conditions beneath the site.

This particular investigation forms only a part of a portfolio of works previously undertaken for London Southend Airport.



At Priors Hall, Discovery CE was appointed by BELA, the contractor responsible for the earthworks at the site, to provide technical advice and quality control services regarding all aspects of the earthworks operation. This has included a review of the risks associated with inundation and creep settlement, a review of the compaction specification and testing programme as well as a review of the risks associated with the material variability. Works at the 240ha site are still ongoing.



The investigation area comprised a former open cast quarry which was backfilled via unknown operations between 1984 and 1993.  DCE investigations across the site revealed Made Ground depths to between 86m and 90m bgl.

Discovery were appointed to design a ground improvement strategy for the development of an industrial unit on site with financial, time and special constraints. Following assessment of the suitability of the different ground improvement strategies DCE developed a successful and unique ground improvement strategy which allowed delivery of the project within time and budget. As a result the site’s traditional pad foundations can be used for the proposed development.




Discovery CE provide verification services for Ground Improvement works to confirm that the requirements of the ground treatment have been achieved.

Works such as those were carried out at a 4ha commercial redevelopment at the Waterfront in Barrow in Furness. The works typically comprise of an assessment of the available geotechnical data together with inspection of the treatment process.

Verification testing at the site comprised of a suite of Static Cone Penetrometer Testing and “Zone Testing” using 2m x 2m square plates loaded to 120kN/m2. The testing confirmed that the ground treatment process was successful in producing a development platform suitable for the proposed office development.