Defense structures in avalanche starting zones - SLF
Defense structures in avalanche starting zones - SLF
Defense structures in avalanche starting zones - SLF
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1 > Scope 11<br />
1 > Scope<br />
1.1 Delimitation<br />
The technical guidel<strong>in</strong>e applies to the plann<strong>in</strong>g of support<strong>in</strong>g <strong>structures</strong> <strong>in</strong> the <strong>avalanche</strong><br />
start<strong>in</strong>g zone.<br />
The computational and dimension<strong>in</strong>g procedures apply to separated support<strong>in</strong>g <strong>structures</strong><br />
hav<strong>in</strong>g rigid or flexible support<strong>in</strong>g surfaces <strong>in</strong>stalled normal to the l<strong>in</strong>e of slope,<br />
or which deviate from the normal by an angle δ.<br />
The technical guidel<strong>in</strong>e specifies:<br />
> the plann<strong>in</strong>g of support<strong>in</strong>g <strong>structures</strong> <strong>in</strong> the terra<strong>in</strong><br />
> requirements on build<strong>in</strong>g materials<br />
> determ<strong>in</strong>ation of loads on the support<strong>in</strong>g <strong>structures</strong> result<strong>in</strong>g from snow pressure<br />
> dimension<strong>in</strong>g of support<strong>in</strong>g <strong>structures</strong> and their foundations/anchors<br />
> use of anchor grout <strong>in</strong> <strong>avalanche</strong> defense <strong>structures</strong><br />
> the <strong>in</strong>stallation of <strong>avalanche</strong> support<strong>in</strong>g <strong>structures</strong> <strong>in</strong> permafrost<br />
> type approval tests on <strong>avalanche</strong> defense <strong>structures</strong><br />
1.2 Relationship to the SIA standards<br />
1.2.1 General<br />
The present technical guidel<strong>in</strong>e supplements SIA 261 and/or 261/1. Where not otherwise<br />
stated, the relevant SIA standards apply. The SIA standards are the recognized<br />
codes of build<strong>in</strong>g practice <strong>in</strong> Switzerland and form the official set of build<strong>in</strong>g standards<br />
(cf. www.sia.ch).<br />
1.2.2 Dimension<strong>in</strong>g of the superstructure of support<strong>in</strong>g <strong>structures</strong><br />
Where no further <strong>in</strong>formation is given <strong>in</strong> the technical guidel<strong>in</strong>e, the SIA standards<br />
262, 263 and 265 are applicable to the dimension<strong>in</strong>g of the superstructure of support<strong>in</strong>g<br />
<strong>structures</strong>.<br />
1.2.3 Dimension<strong>in</strong>g of the foundations of support<strong>in</strong>g <strong>structures</strong><br />
For the dimension<strong>in</strong>g of the foundations of support<strong>in</strong>g <strong>structures</strong>, the provisions of the<br />
guidel<strong>in</strong>e apply. In special cases, SIA 267 (Geotechnology) can be used.
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