![Van and drilling rigs completing ground investigation on the A8](https://www.soil-engineering.co.uk/wp-content/uploads/2024/07/IMG_0998-400x265.jpg)
![Van and drilling rigs completing ground investigation on the A8](https://www.soil-engineering.co.uk/wp-content/uploads/2024/07/IMG_0998-400x265.jpg)
Due to the constraints of a Section 61 Notice, the Sheet Piles could not be driven through granular strata using a hammer, and were vibrated into place. Several piles failed to fully penetrate very dense River Terrace Deposits and seal into the London Clay below. The resulting gaps had to be “plugged” in order to ensure the safety of operations within the cofferdam, and to prevent free running material flowing into the excavation.
Soil Engineering designed a solution utilising pressurized microfine cementitious grout to both densify and consolidate the Terrace Gravel material. The Microfine Cement allowed the grout to permeate more effectively at low pressure further than OPC based Grout, ensuring that the grout could form an extended envelope beyond the area of densification, providing a seal across the gaps in the sheet piles. Grout was also injected into the upper 1m of the underlying London Clay, to ensure the seal tied into the fissured clay, and shut off the water pathway.
On acceptance of SEGL’s design by the client, the site crew were able to mobilise a Soilmech SM-8 drilling Rig, and Bauer hydraulic colloidal mixer/pump assembly in 1 week, to undertake the works under the supervision of a Soil Engineering Senior Engineering Geologist.
Some might say “about time”, but Soil Engineering’s continued upgrade and expansion of the drilling fleet now includes the Eijkelkamp Fraste XL140 Duo rig with Sonic Drilling Capability. Unveiled at this year’s Geotechica show, the latest addition to our highly flexible Ground Investigation Fleet also supports the launch of our “Specialist Geoservices” unit. Specialist Geoservices […]
Read more ➜Lead Driller Keiron Lee, a stalwart of Soil Engineering’s market leading skilled workforce celebrated his 25th year of service with the business in November 2023. Now, barely six months later, we’re delighted to reveal that Keiron has also completed his Level 3 NVQ in Advanced Land Drilling, firmly positioning him at the pinnacle of the […]
Read more ➜Transport Scotland have announced that Soil Engineering Geoservices have been awarded the contract to provide ground investigation services at the A83 Rest And Be Thankful, to support the design of their medium term solution for the safety of the route. Long-standing framework suppliers to Transport Scotland, Soil Engineering have previously undertaken complex investigation works along […]
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