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Project: Quarry – Residential Development | Obsidian
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Project: Quarry – Residential Development

Beech Consultants (BC) were appointed by the owner of a former Sandstone Quarry, near Parbold, Lancashire to undertake a geotechnical and solid geology investigation and assessment.


It was proposed to construct a very large detached house, on four levels (25,000ft2) on the side of the quarry. During construction of a detached garage/apartment block and excavations for a lower basement/swimming pool there had been concerns regarding the potential bearing capacity performance of a highly weathered Siltstone at the site; which was dipping downslope 12° to the horizontal. BC organised and managed rotary drilling and coring of the solid geology at the site to establish the integrity of the strata under loading from the proposed structures. A report was provided recommending additional engineering works to stabilise the site and allow the construction to proceed. A Engineering Groundwork Specification was established for the site contractor. In addition, slope stability assessments and redesign of existing slopes above and below the proposed structures was also undertaken.

Accreditations Beech Group Accreditations