Ground improvement for building conversion
Background The client required ground improvement to soils beneath the existing foundations of a former school building that was in the process of being converted into a hotel. As the refurbishment was underway cracks started to appear on the walls. Initially, monitoring was conducted and superficial works were completed, however, a number of months later […]
- Rails
Rail embankment badger sett void filling
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 […]
- Roads
Vibration control and reduction on rocking slabs
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 […]
- Tree Subsidence
St Mary’s Church Subsidence Ground Improvement
St Mary’s Church Subsidence, Ground Improvement Grade 2 listed St Mary’s Church is located in Doverdale in Worcestershire (figure 1). Its original construction was dated as far back as the 12th century with subsequent restorations in the centuries that followed. In the 2000’s the church had shown evidence of subsidence and in 2012 […]
Embankment Ground Strengthening – Severn Valley Railway
A section of railway track, built on a 5m high embankment, known as Alveley Wood in Shropshire on the Severn Valley heritage railway (SVR) is showing signs of distress. The distress, seen typically as a deformation of the track with 350mm deviation from the design track geometry and 9-15mm per year of track tilt, is […]
- Commercial
- Public buildings
School Subsidence Ground Improvement project – Clay Shrinkage
Background A school in South West London had experienced differential settlement of the foundations of the building perimeter. The first signs of a problem were the cracks that began to appear throughout the school on the walls. The foundations of the building were sinking foundations on all corners. The cause of the settlement was clay […]