Infrastructure

At a site near Telford known as Jiggers Bank, the road had to be closed due to some serious land movement that had caused fractures to the road. As part of the work to repair the site, Geobear was contracted to fill the voids and stabilise the arches beneath the road. This video, with input […]

Geobear’s Innovative Solution for the Warford and Watercourse Viaduct This case study explores Geobear’s successful low-carbon intervention at the Warford and Watercourse Viaduct in Cheshire, Runcorn, a project commissioned by Network Rail. The primary challenge was to waterproof the viaduct spandrels and fill voids to prevent rainwater ingress without causing environmental harm to the underlying […]

Project Background/Issue Surrey Country Council was facing a significant challenge affecting a section of one of its roads, the A323. Surface undulation due to issues below ground had caused the asphalt to crack affecting traffic on the route. The road quality was gradually worsening and Surrey CC needed to find a solution that would not […]

Concrete Road Ground Improvement Background A section of road in a town in England had been experiencing frequent resurfacing needs due to problems with the soil beneath the concrete slabs. Water ingress had caused washout of fines in some areas, while weakened soils at depth had contributed to continued fracturing of the surface, affecting over […]

Badger Sett Infill – London to Brighton Railway, East Sussex Background A section of railway embankment on the London–Brighton main line in East Sussex was identified as a potential source of track faults following the discovery of multiple badger setts. In total, 35 setts were found within the 8-metre embankment. These burrows created approximately 25m³ […]

A22 Vibration Control and reduction   Working for East Sussex Highways, Geobear was contacted to address slab movement on a section of the A22. The joints between the concrete road slabs on part of the road in Lower Dicker were experiencing failure due to voiding under the joints (Figure 1). The voiding led to rocking […]

Sewer System Ground Improvement – UK A road and sewer system had experienced significant settlement of 100-200mm, initially caused by flash flooding. Consequently, washout beneath the existing sewer pipe occurred, meaning it bowed and the joints failed which caused further soil erosion. This led to an accelerated rate of settlement and loss of ground support […]

Kentish Town Slab Track Treatment Geobear produced an innovative design solution to stabilise a section of rail slab track between Kentish Town station and St Pancras station, London. We were presented with a significant geotechnical challenge where the slab track had experienced rapid deterioration which manifested in concrete slab cracking in numerous locations. The main […]

Background A number of airfield pavement slabs at a major London Airport had settled excessively due to soft underlying conditions combined with potential drainage issues, with up to 50mm of maximum settlement on some slabs (see Figure 1). The settlement of these slabs could disrupt aircraft taxiing from/to landing and take-off zones, therefore, timely maintenance […]

Summary Geobear was approached by Story Contracting to design a solution to fill the voids in and around the shafts and behind the tunnel lining of the West Coast Mainline Shugborough Tunnel in Stafford. The 1847 tunnel had deteriorated over time and there was a significant risk of collapse. Download PDF Version Introduction Shugborough Tunnel, […]

Customer situation and background The Ilmala railway depot, located in Helsinki near Finland’s largest and busiest railway station, had problems with soil subsidence. The Ilmala depot is located in an area that was originally a swamp but was later turned into a landfill. The landfill was in use until 1963, and after several years of […]

Geobear’s solutions resolved erosion issues that disrupted the port’s operations Hernesaari Port receives thousands of cruise passengers from around the world each year, and passenger numbers are expected to grow further in the coming years. However, the corner of the cruise pier in the harbour area had begun to sink repeatedly into the pits. This […]

Swanage is a coastal town in the South West of England. Geobear was contacted by Dorset County Council to deliver a solution to fill voids adjacent to the town’s historic seafront wall. Following a condition assessment carried out by WSP, whereby a visual inspection was supplemented by a geophysical survey, areas of potential voiding were […]

Water leaks were occuring at a reservoir in Scotland. Geobear were contacted to help with water leaking from some of the joints between concrete at Cobbinshaw Reservoir, the water leaks could be stopped using Geobear’s geopolymer which acts as a water sealant. Background Cobbinshaw Reservoir is a site of special scientific interest (SSSI) located in […]

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Background A GPR survey carried out in advance of planned resurfacing works highlighted voiding below concrete pavement slabs on this section of the A55. The slabs lay beneath a 40mm thick layer of asphalt that was due to be planed off prior resurfacing. The resurfacing was scheduled to be carried out over two-weekend road closures […]

Geobear provided slab stabilisation to 100 slabs at Luton airport in 2018. With the expansion of operations at Luton and additional areas identified for flight traffic, in 2019, we proposed a preventative maintenance scheme of works to stabilise newly identified taxiways to be brought into use.  Background We had developed a good relationship with the […]

Geobear provided urgent works to stabilise the bank of the Grand Western Canal running through Tiverton in the UK. The embankment had become unstable due to burrowing animals and Devon District Council needed an urgent solution.    Project background The Grand Western Canal runs across the South West of the UK and a routine inspection […]

A property on Brewer Street in London included several redundant vaults used as coal sheds in the basement. The client wanted these sheds filling to secure the area and prevent deterioration. Project background Brewer Street is a busy road in central London; the client needed a solution to fill five coal sheds with minimum disruption […]

Geobear was contacted by J Brown Construction to provide an emergency solution for a project they were completing for Thames Water. The overall project scope was to replace a section of leaking water pipe beneath Hadley Green Road in Barnet. Over the decades, gradual degradation had led to the victorian era pipe cracking, which resulted […]