The construction of a new 25,510ft² Type 14 Lidl UK GmbH supermarket store, together with associated external works was the first development at the new retail park in East Leeds.
Subsequent phases delivered three further units including a 28,000ft² Home Bargains store.
Ground investigation revealed numerous shallow mining workings and earthworks. Two large coal seams were also identified across the site. A drill and grout pour was required to infill mine shafts and stabilise the ground. Adept liaised with the geoenvironmental team to agree levels and specification for the final build-up of engineered fill across the site.
Adept designed vibro stone column foundations to further improve ground density and support a ground bearing concrete slab with pad and strip foundations.
The standard specification for Lidl stores is a poroton blockwork solution. A traditional steel frame design with poroton blockwork outer shell was agreed as a hybrid solution. Adept designs included car parks, concrete service yards, curb layouts, retention walls, 3m fencing requirements and slab drawings, levels and drainage plus sub base drawings for car parks.
Excellent communication ensured client requirements, from specific use of products to the channel drain design, were met.
A constrained corner of the site with only a 1m easement, meant close consideration of the retaining wall. A thin profile lock and load retaining wall with soil anchors was identified as the best solution. The new development required substantial underground drainage to attenuate surface water. Several large storage tanks were design to reduce the discharge rate to the public sewer.