Issue 14

B. M 50 foll top sno the tria wo In pro num voi pre inv bef A C T . Chiaia et alii owing statem ography of t wpack [13] . wind deflect ngular shape rk as a crack conclusion, c pagation of erical inves ds) snowpac liminary resu estigation tak ore definite c KNOWLEDG he finan Italia/Fr by Regio , Frattura ed In ent: sponta he slope: the Studying the ors with a cr inside the sn arresters. (b) Wind de Figure onsidering th a weak layer tigations in c ks. The use lts testify the ing into acc onclusions w MENTS cial support ancia (Alpi 2 ne Piemonte tegrità Struttural neous crow concave an methods of oss shape (Fi owpack of t (a) Figure 6 : (a) W flectors on the (a) 7 : (a) Snow-gri pr e snowpack cracking ha ontinuous (n of crack arre effectivenes ount directly ill be drawn. provided by 007-2013) is and Italian M e, 14 (2010) 45 n fractures d convex rip defence aga g. 6) in the r he release ar ind deflector ridge of Lava pper element. otected by Sno as a linear–el s been cons atural) and d sters is a fir s of the activ Mode II arr Progetto S gratefully ac inistry of W -51; DOI: 10.322 follow the s ples of the s inst avalanch idge of the av ea [14, 15]. O with a cross s ncher – Morge (b) Example o w-grippers (w astic plate (2 idered. The iscontinuou st step towar e crack arres est on the w trategico RIS knowledged. ork and Soc 1/IGF-ESIS.14.0 ame path. T lope induce es, we have alanche basi bviously, th (b) hape (Photo b x (AO) – basi (b) f release area ww.incofil.com D problem), path of the s (equipped w ds a new id t concept fo eak plane an KNAT - O The research ial Security. 5 his is due tension and identified tw n and (ii) the ese defence s y Frigo, 2003) n (Photo by C of the avalanc ) . the Mode I c crack has be ith a differe ea for active r dry snow a d the cohesi biettivo coop activity is f to the morp compression o typologies snow-grippe tructures mu . eriani, 2000). he basin rown fractur en investigat nt shapes an avalanche p valanches. O ve nature of erazione ter unded by gra hology and zone inside of structures rs (Fig. 7) wi st be adapte e after comp ed by mean d geometrie rotection. Th bviously, fur snow is nee ritoriale euro nt co-suppo the the : (i) th a d to lete s of s of ese ther ded pea rted