Case Studies

Over our extensive time in the industry we have carried out a wide variety of projects in all kinds of situations, below you can see some of our most challenging and recent work.

Marine Parade, Seaford

Varying ground conditions, restrictive access and the presence of existing houses close to site boundaries, where some 7m drop in level was required, provided a background for a hybrid approach to the design and construction of the necessary earth retaining structures on this site.

Contiguous reinforced concrete piles of up to 750mm diameter were installed to depths exceeding 15m adjacent to the existing highway and dwellings flanking the site. These were supplemented by soil nailed upper slopes with terraced timber crib gravity walls to the mid and lower slope areas of the back gardens of the new plots.

Client: Barratt Southern Counties Limited

Holmthorpe, Red Hill

Half a kilometre of gabion retaining walls provided permanent bank support to new stream diversion works and flood alleviation measures. The contract also included forming new surface water outfalls and ditch liners in gabion mattressing with gabion baskets to footbridge piers and abutments.

Client: Linden Homes Ltd

Aylesbury

A challenging project in and around an existing brook involving the installation of stone faced gravity retaining walls on one side with soil nailed & slope reinforcement/geocoir and topsoil to support a steepened bank and existing adoptable cycleway on the other.

Works had to be carried out in predetermined sections to maintain temporary stability of the cut banks whilst pumping and diverting water from the working areas as dictated by site conditions.

The stabilised slopes and walls were then landscaped and planted to the approval of the Local Authority.

Client: Elite Landscapes Ltd

Dover Docks

The full design and construction of modular block faced reinforced earth ramps forming part of the new elevated roadways and infrastructure works. Main contractor: Alfred McAlpine Civil Engineering Ltd.

Client: Dover Harbour Board

Caterham

This project was up to a year in the design and planning phase with the client prior to commencement on site. This consultation paid dividends when it came to the programming, management and coordination of the works on site.

All external retaining structures had to be constructed in and around the main building drainage, services, foundations and internal RC retaining wall groundwork activities on a narrow frontage site, with some 14m of fall from front to rear.

Earth retention systems included extensive reinforced earth steel mesh faced temporary site access ramps, concrete modular and feature steps with terraced landscaped timber crib terraced retaing structures to the garden areas.

Client: McCarthy and Stone (SE) Ltd

Nailsworth

Soil nailing and timber crib facing was extensively used to support the rear upper terrace slopes of up to 6m retained height in difficult ground conditions of sandy clays with weak soliflucted deposits with groundwater seepages.

Nails were installed using 'top down' methods as bulk excavation proceeded in pre-determined stages on site.

Lower terrace slopes of up to 3.5m retained height were similarly supported with soil nails, facing mesh and shotcrete as temporary works support prior to the construction of new RC integral retaining walls.

Client: McCarthy and Stone Developments (SW) Ltd