Beaver Rd, Allington- Housing Developer benefits from our innovative approach
Geolex were employed by developer Baxter Homes as a specialist in retaining walls and earth retention systems to examine the existing cut slope on this site, with a view to providing a design and proposals for appropriate slope stability measures. Gravity and traditional masonry walling was not an option due to lack of space on site, and the risk of the undermining the existing slope further.
Before proceeding the works, it was necessary to confer and obtain the approval of the Kent County Council Highways prior to issue of our design and mobilisation.
We acted jointly with Geotechnical Consultants ESG in surveying and issuing a slope specific GI report and Topographic Survey of the bank area which supported an adoptable highway. The results of this initial survey work revealed that the cut face of the slope at Beaver Road comprised predominantly limestone Hythe beds which were considered to be self supporting, therefore needing a little or no additional support. In these areas however, it was important to address the potential for shallow failure and spalling of the rock face due to future frost action and weathering. In these areas, shallow ground anchors and rock mesh were designed and installed. On the upper section of the slope, topsoil and geocoir matting were placed with ground support anchors and the whole area hydroseeded for grass growth and protection against future surface ravelling.
The critical mid region of ban comprised made ground where it was necessary to design and construct a more robust system using longer length and high capacity soil nails and high tensile galvanised steel mesh with topsoil panel facing which encouraged vegetative growth.
All works were carried out on a fully indemnified Design, Supply and Construct package of work.
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