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Rock Slope Stability Assessment, Stembridge, Llanrhidian

We undertook a desk study review of historical and geological information for the local area to establish the geological setting of the road cutting.  This was then followed by a careful engineering geology, rock slope stability assessment of the exposed slope to determine the nature of the material and discontinuities within the face.  Slit trenches were excavated to allow precise identification of the rock mass properties.

The kinematic potential for a number of rock slope failure mechanisms was assessed, and the risk of further rock failures impacting on the highway evaluated including appraisal of geotechnical, geometric, and traffic factors.  A Rock Hazard Rating system was then implemented, including assessment of motoring/traffic factors in addition to rock slope factors, to provide an overall rating score, which is used to define the level of risk.

A number of remedial measure options were recommended based on risk and benefit; some measure were urgently required.

We subsequently supervised de-vegetation, re-profiling and scaling works on the basis of our recommendations to mitigate the immediate risks.  Concrete barriers were placed along the slope toe, and the carriageway was widened on the opposite side of the road. Regular inspections of the rock slope are being implemented to review ongoing stability and ensure the safety of motorists maintained.

Temporary slope toe control

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Simon Lewis
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Earth Science Partnership recently completed an independent geo-environmental review for us and I have been extremely impressed with both the quality of their work and the professionalism of the team. The report was comprehensive, balanced and technically robust, helping us navigate a complex evidence base and identify the key issues requiring further consideration. Just as importantly, ESP were approachable and willing to engage constructively with questions arising from the draft report. Special thanks to Daniel Thomas for his time, patience and willingness to explain technical matters in a way that non-specialists could understand. It was clear throughout that the focus was on objective, evidence-led analysis rather than simply telling a client what they wanted to hear. A highly professional consultancy and one I would most happily recommend. Simon Lewis : Secretary : Nant-Y-Calch Conservation Group
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Barbara
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Earth Science Partnership has helped us immensely through a , long, stressful and complex situation following a major leak under our property. We had the absolute pleasure of working with Giles Sommerwill, who was with us every step of the way. He helped us to understand the geological conditions and ramifications following such a major leak, and then informed and advised us during the process of agreeing a remedial solution with the water company, as well as helping us address other issues that arose over time. Giles is experienced, knowledgeable and highly qualified. We could not have hoped to work with anyone more professional, reliable or kind. We also felt that Giles was genuinely concerned, not just about our property, but about our well-being. Thanks to him, we highly recommend, and praise, Earth Science Partnership.
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Roberta Morgan
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Having used the services of Earth Science Partnership on two previous occasions, we had no reservations about employing them for a third time. They are very professional and produce excellent detailed reports on what they are able to do. They are prepared to listen to everything you require and would highly recommend them.
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Joshua Pike
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ESP undertook some thorough CMRA (Coal Mining Risk Assessment) works for our site. They showed a surprising level of knowledge into the historical mining methods and establishment of mining sites. Prompt and in-depth reporting and great communication, would definitely recommend.
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Duncan Phillips
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Great client to deal with!
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Keri Beal
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Great communication, excellent prompt service.
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Oliver Stacey
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ESP have done some excellent GI works for me and produced some excellent in depth reports for our client (Network Rail)

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Earth Science Partnership is a leading geoenvironmental and geotechnical expert, delivering a comprehensive range of specialist services across Wales, England, Scotland, Northern Ireland and Ireland. We have decades of combined experience in our team of industry-recognised experts.

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