May 15
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Geotechnical Aspects of Borders RailwayMine Infill Grouting
May 15
2
Geotechnical Aspects of Borders RailwayMine Infill Grouting
May 15
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Geotechnical Aspects of Borders RailwayMine Infill Grouting
May 15
4
Geotechnical Aspects of Borders RailwayMine Infill Grouting
May 15
5
United Kingdom Coalfields
M74 Glasgow Stirling-Alloa Dolphingstone Borders Railway
May 15
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Borders Railway
May 15
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Borders Railway - Design
− URS design
− 1.75m perimeter hole spacing
− 3.75 or 1.75m infill hole spacing
− Rock Cover to the seams
Depth of treatment uses 10:1 cover ratio principle
Beneath structures 10:1 applies but with min 30m
cover
Angle of draw on the permanent way = 2V:1H
May 15
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Borders Railway Shafts
May 15
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The way we worked…..
•50Nr weeks on-site
• 1125Nr rig shifts (10 Nr rigs)
• 250,000 linear metres drilled
• 5000te of grout injected
• 11Nr mine shafts consolidated
• 2.5km of consolidated railway
Exploring New Horizons
May 15
11
New Plant
• State of the art Bulk Mixing Unit utilised within
Cementation Skanska for the first time. Materials
loaded by a fully automated conveyor belt system
• Remote control drilling rigs championed, which
allowed the Operator to work remotely from the rig
• Infra red camera system trialled with a potential to
replace the safety gate system
Cementation Skanska Rail Capability• Access Planning
• Vegetation Clearance
• Temporary Works
• Drainage
• Earthworks
• Reinforced Soils
• Grundomat Piling
• Ground Anchors
• Grouting
• Soil Nails
• Mini Piling
• Sheet Piling
• Gabion Baskets
• Reinforced Concrete
• Planting
• Fencing & Handrails
• In Ground Instrumentation
• Track Monitoring
May 15
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Relationships that Work
• Over 10 years of working together
• Nearly £10 million worth of work
executed− Dolphingstone, East Coast Main line
− Stirling to Alloa Railway Link
− Borders Railway
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