- Utilities
Sewer pipe belly lifting on new build development
Sewer pipe belly lifting on new build development Overview Client: UK New Build Contractor Location: North West Project Focus: Ground strengthening and pipe lifting for failing shallow sewers beneath a road network on a new-build housing estate. The Challenge: Structural Integrity in Soft Ground A sewer system constructed beneath a road on a new housing […]
- Infrastructure
Structural Void Filling the Sea Wall at Dovercourt
Structural Void Filling Behind the Sea Wall at Dovercourt Background The sea defence at Dovercourt, spanning approximately 300 metres, is formed of concrete blocks that have experienced structural failures over time. Persistent water ingress and washout have led to the formation of voids behind the wall, undermining its stability. Despite regular patch repairs, these voids […]
- Commercial
Ground Improvement at York St. John University
Ground Improvement at York St. John University Background York St. John University embarked on the second phase of converting its old sports hall into a functional space for academic and medical purposes. Phase one, completed two years prior, transformed two-thirds of the hall into classrooms. The ongoing phase aimed to repurpose the remaining area by […]
- Roads
Ground Improvement on a major A road
Background A section of a busy dual carriageway, near a town in the south of England experienced ground instability, leading to subsidence and voids beneath the carriageway. The client required a comprehensive ground improvement plan to address these issues that were identified using Ground Penetrating Radar (GPR) and Dynamic Cone Penetration (DCP) tests. A solution […]
- Rails
Chorley Tunnel Slab Track Lifting
A section of track at Chorley Tunnel in the northwest of England was subject to line speed restrictions due to subsidence. The section in question was at the end of the slab track running through the Chorley Tunnel, a line notable for its electrification scheme in the previous decade. The subsidence was caused by a […]
- Rails
Rail Ballast Binding
Background The Glenn Douglas railway section, adjacent to a loch with a steep embankment, relied on a King Post retaining wall to hold the ballast in place. Over time, the wooden sleepers forming this wall deteriorated, leading to gaps that caused the ballast to erode down the embankment, jeopardizing track stability. Problem The primary issue […]
