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Click on the BBA accreditation
logo to download our BBA Certificate in Acrobat PDF format.
If you do not have Adobe Acrobat Reader you can download it
free here.
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The FA26 Rock Cuttings project involves
the stabilisation of several rail cuttings throughout the
North West of England.
The Doveholes project involved meshing
and doweling a selective area of the cutting face to eliminate
rock fall risk to the rail infrastructure.
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Mesh securing top anchors were achieved using
Weldgrip R32N self drilling anchors.
The anchors were installed using a TEI mast and grout flush
system to achieve the 6-8 meter drilling depth.
A variety of Drill Bits were tested & the
R32/51mm/ESS-F button bits proved the most productive in the
Carboniferous Limestone. Due to embankment instability heavy
machines were not permitted on the embankment crest.
Drilling operations were achieved using excavator machines
operated from the carriageway.
<< The drilling arm in action
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Drilling from the carriageway using
excavator machines |
Completed anchor and mesh installation
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A typical anchor detail |
Meshing work completed |
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<< Vertical Access operative using anchor for
work positioning
Comments of the Vertical Access
Contracts Manager:
“The use of the Self Drilling Anchor system allowed
us to produce timely work in known problematic ground conditions
and prevent program delays on this critical stage of the project.”
“The production of the top anchorages are
critical to our operation on this type of project as they are
used for both Industrial Roped Access Anchors by operatives
and always form the primary stage to our meshing works.”
Click
here to view the Vertical Access web site.
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Download the Printable PDF Brochure
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on our soil nails and rockbolts please click on the download
button.
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4.2 meg |
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Bar
& 'AT' Rockbolts
