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Bristol Temple Meads Platform Strengthening
Bristol Temple Meads Platform Strengthening The roof structure at Bristol Temple Meads Station was due for refurbishment/repair, this work was to be carried out from scaffolds spanning across platforms and live tracks. However, the existing platform structure was not able to support the load from the scaffold support legs and required strengthening prior to […]
Read moreSewer Stabilisation
Sewer System Stabilisation – 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 increasing […]
Read moreKentish Town Slab Track Treatment
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 […]
Read moreAirfield Concrete Slab Treatment
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 […]
Read moreSoft clay treatment
Treatment of very soft clays via expansive geopolymer injection Background Geobear was requested to stabilise an area of ground at a site in Scotland, covering approximately 600 m2, which was suffering from subsidence (Figure 1). The subsidence was thought to be associated with water leakage from a deeply buried sewer at the site location. The […]
Read moreSubsidence clay repair
Geobear resolves subsidence affecting the perimeter of the entire property Geobear was called out to a property in Leicestershire that had suffered from subsidence. A number of factors had caused the issue, primarily shrinking clay soil which was exacerbated by roots from adjacent trees. Pine trees lined the road where the property was located and […]
Read morePublic Swimming Pool Ground Improvement
A swimming pool in the Midlands required some urgent ground improvement works as a result of a water leak through circulation pipes. The main pool was closed following a significant loss of water, due to fractured pipes. Whilst repairs to the pipework were undertaken, investigatory works were also carried out around the pool hall […]
Read moreResidential stabilisation – Midlands
Stabilising the foundations and slab in a detached house Each year Geobear remediates hundreds of residential properties that have suffered from structural movement caused by subsidence. The teams work in all corners of the UK dealing with subsidence issues that have occurred for many reasons such as shrinkable clay soils or drainage problems. At a […]
Read moreWoodfields Retail Site Car Park Stabilisation
Background Geobear was contracted to deliver ground improvement works at multiple locations of an out of town retail park, Woodfields in Bury. The site had become severely undulated and a solution was required to stabilise the access road, car park and service area. See photos 1&2. The current site was constructed in the 1990s on […]
Read moreWCML Shugborough Tunnel shaft and annulus void filling
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, […]
Read moreGarage stabilisation
Garage Stabilisation Geobear was contacted by a customer whose garage, attached to his property, had experienced significant movement over time. The movement had resulted in evident cracking in the walls of the property and sinking of the slab. The cause of the problem was the compaction of the existing fill over time and weakening soils […]
Read moreQueens Hotel Cheltenham Void Filling
Background The Queens Hotel was opened in 1838 on the site formerly known as the Sherborne or Imperial Spa. The hotel is located on The Promenade, Cheltenham, Gloucestershire, GL50 1NN and was opened in 1838, it has been listed as a Grade II English Heritage building since 1955. A large sinkhole was uncovered under the […]
Read moreMonkey Island Estate – Stabilisation and Slab Lifting
Project Scope In 2017 Monkey Island Estate, owned by Wessex Water was looking to invest in the property and bring it back to sustainable use. Plans were submitted to demolish the existing outbuildings, renovate the Pavilion and Temple buildings and create a new building for staff accommodation, an energy centre, and a bin store. The […]
Read moreSinking areas of railway depot were repaired by geopolymer injection
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 […]
Read morePort of Hernesaari – Internal erosion control
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 […]
Read moreVoids beneath busy train track was successfully filled with geopolymer resin
Background The railway section between Seinäjoki and Oulu is one of the busiest railway sections in Finland, and it is also part of the entire trans-European TEN-T transport network. In the middle of this section of the line is Ylivieska station, which is an important crossing and stopping point for both passenger and freight traffic. […]
Read moreSheet Pile Water Sealing Poland
Objective There was a planned residential building with underground garages in Krakow, Poland. The construction of a multi-storey residential building was part of the second stage and required a deep excavation for a two-story underground car park in unfavourable conditions such as a high groundwater table and a thick layer of compacted gravel. The excavation […]
Read moreEton College Stabilisation
Geobear were recently contracted to provide stabilisation and ground improvement works for a refurbishment project at Eton College. This video describes the works.
Read moreGuildford Council – Settlement of ground-bearing floor slab
Geobear was contacted by Guildford Council to provide a solution for a distorted floor slab which had settled differently, up to 35mm. A design was prepared and quotation provided, within 8 days of referral. The design was to inject a specialist geopolymer in a grid pattern to 0.5m below the floor slab. The expansive geopolymer […]
Read moreNewnham Hill Bridge Approach
Following structural inspections of the bridge on Newnham Hill, which spans the A45 at Daventry, it was found that the approach had settled and was becoming a safety issue for road users. KierWSP, who maintain that section of highway on behalf of Northamptonshire Highways, required a solution that would address the issue caused by badgers […]
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