Location: Jubilee Medical Centre Practice 52 Croxteth Hall Lane Liverpool L11 4UG Project Description: Car park extension over layer of clay offering an alternative to traditional Macadam surface Technical Requirements: • Car park capable of withstanding upto light vans • Permeable surface • Strengthening poor subsoil • Alternative to Macadam surface Contractor: City Build / Siteright Consultant: Curtins Consulting Engineers Supplied Via: Travis Perkins - Stockport Fleming Road Harrowbrook Industrial Estate Hinckley LE10 3DU Tel. 01455 617 139 [email protected] www.geosyn.co.uk Case Study Golpla Curtins Consulting Engineers contacted Geosynthetics in early 2015 looking for an alternative to a traditional Macadam car park design with positive drainage. Golpla being permeable enough to allow rainwater infiltration was proposed and a Technical Recommendation was prepared. Concerns over the strength of the subsoil were raised during excavations when a layer of clay was discovered at a depth of 400mm. Geosynthetics recalculated the build up this time taking into account the clay. A Tenax geogrid was added to strengthen the clay based type 3 layer. Using Golpla in combination with Geosynthetics Engineering services enabled Curtins Consulting Engineers to change the design of the car park and removed the need for drains and pipework. Jubilee Medical Centre, Liverpool Golpla in-fllled with gravel Initial excavation revealed a clay layer at a depth of 400mm Filling Golpla units with gravel Finished car park