April 2021 – Cone Penetration Testing Update

The first quarter has been incredibly busy at GES for CPT testing. We’ve been working continuously on a series of CPT-consulting operations ranging from a detailed plot-by-plot foundation zoning plan for one of Britain’s biggest housebuilders to verification of deep soil mixing work (which we hope to write up in a technical paper) and culminating in a Principal Contractor role for additional investigations on an infrastructure development in Scotland’s Central Belt with multi-facetted public & utilities interfaces with the main technical aim of informing road embankment settlement control periods and bearing capacity issues.

Fighting through some inclement weather in the early part of the year and using piezocone, dissipation testing & detailed geotechnical interpretation, we’ve been able to optimise a number of land development sites resulting not only in hundreds of thousands of pounds in savings but also in some cases, projects becoming viable having been shelved owing to perceived ground conditions – the power of targeted CPT data. We also had a smashing little case study in Glasgow where we undertook CPT probing and, subsequently, pile design for 3nr housing plots with dynamic testing providing great agreement with estimated pile capacity. In addition, we got some great data out of our plate load testing unit by proofing the platform in advance of the piling rig arrival by undertaking continuous rate of penetration tests to 900kN/m2 in order to verify platform stiffness and ultimate bearing capacity in a meaningful way – providing solutions for our customers on multiple fronts.

We’ve also developed our in-house surveying & setting out capabilities with a c.£12k investment in the latest Trimble GNSS Smart Antenna and training via Sitech and we’ve stocked up on some new cones and technical equipment from Geomil to keep our data in top condition. We’re happy to tackle investigation sites without attendance – again, providing solutions for our customers on multiple fronts.

Deepest probe this quarter: 48.94m in Grangemouth.

Looking forward to some better weather in Q2! Onwards!

Get in touch: cpt@ge-solutions.co.uk

Project profile – April 2021 CPT update

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