Review of Cabling Techniques and Environmental Effects Applicable
Review of Cabling Techniques and Environmental Effects Applicable
Review of Cabling Techniques and Environmental Effects Applicable
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Figure 3.26: Placement <strong>of</strong> Rock for Scour Protection<br />
Grout bags or s<strong>and</strong> bags<br />
Cable types <strong>and</strong> installation techniques<br />
Grout or s<strong>and</strong> bags can be regarded as a smaller scale version <strong>of</strong> the mattressing<br />
process. They are usually installed by divers to stabilise or fix in place a cable or<br />
a pipeline over short distances.<br />
Grout bags can either be deployed as pre-filled bags or for larger applications<br />
empty fabric bags are taken to the seabed <strong>and</strong> a diver coordinates the filling <strong>of</strong><br />
the grout bag using a grout mix <strong>and</strong> pumping spread from the host vessel above.<br />
Figure 3.27 shows a Grout Bag (in an onshore trial) which has been placed over<br />
a pipe section <strong>and</strong> filled with grout.<br />
Figure 3.27: Grout Bag over a Pipe Section <strong>and</strong> Filled with Grout<br />
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