| Phi Group has successfully completed earth retaining works to facilitate the widening of slip roads to the busy commuter junction 4 on the M20 in Kent. |
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| Several methods were used for the scheme to produce the most cost effective overall solution. One 6 metre high slope was designed with soil nailing at the base, to minimise temporary works excavation, combining with geogrid reinforced soil for the top fill section. |
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The face of both sections was formed using Phi Group’s ‘Textomur’ system, a sacrificial steel mesh backed by a topsoil retention fabric so that the finished 60 degree slope could be grass seeded on completion.
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| Gravity walls using gabions created space for highway services, and Phi Group’s ‘Terraforce’ hollow concrete block was used to support the edge of a stretch of widened carriageway. |
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| The project took 3 months to complete, commencing at the start of May and finishing at the end of July 2006. |
