CML CASE STUDY

Reactive Urgent Earthwork Inspection

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Client: CML

Service Delivered: Reactive Urgent Earthwork Inspection Works
Location: Scunthorpe, Eastern Route – Church Lane Cutting
Project: Emergency Landslide Response

CML

Background

GeoAccess was urgently requested by Construction Marine Limited (CML) to respond to a reported landslide at Scunthorpe Church Lane Cutting. The failure caused a train to become stuck in section, requiring immediate assessment and reporting to support remedial decision-making.

The incident location was identified on the Down line at 22 miles 00 chains. With potential impacts on both railway operations and adjacent properties, a fast and technically robust inspection was critical to determining next steps.

Reactive Earthwork Inspection Case Study

Method

GeoAccess deployed an examiner to provide an urgent inspection report, covering:

  • Precise location details of the failure
  • Site geology and examination history for the relevant 5-chain segment
  • Observations on failure type and triggers
  • Short-term and long-term remediation recommendations

The investigation included a photographic survey from crest and toe, supplemented with aerial drone imagery for enhanced visual assessment.

Initial findings identified a translational soil failure, triggered by saturated ground from recent rainfall. The failure geometry suggested that further downslope movement was likely if material was removed incorrectly.

Reactive Earthwork Inspection Case Study

Key considerations included:

  • Additional failure risk if toe material was disturbed without first addressing mid-to-upper slope stability
  • Potential backscarp development impacting boundary fencing and nearby residential gardens
  • Immediate risk to the bungalow deemed low due to slope geometry and material composition

Innovations & Solutions

  • 24-hour site presence ensured continuous monitoring and client support during the incident.
  • Drone deployment enabled aerial photography in daylight, aiding both the final report and examiner briefings.
  • Proactive reporting provided CML with rapid situational awareness, supporting safe decision-making during a high-risk landslide response.
Reactive Earthwork Inspection Case Study

Results & Conclusion

Over a 72-hour period, GeoAccess provided:

  • On-site technical support for CML
  • Urgent inspection reporting with detailed geological and photographic evidence
  • Short- and long-term recommendations for remediation planning
  • Rapid mobilisation of resources, minimising risks to both railway operations and nearby residential properties

By combining rope access expertise, drone technology, and geotechnical assessment, GeoAccess delivered a safe, responsive, and cost-efficient solution to a sudden landslide event, ensuring Network Rail and CML could act decisively.

Reactive Earthwork Inspection Case Study

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