P ia n o U rb an is tico C o m u n ale - Comune di Villasimius
P ia n o U rb an is tico C o m u n ale - Comune di Villasimius
P ia n o U rb an is tico C o m u n ale - Comune di Villasimius
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u.m. simbolo Tk 1 s.1.45 Tk 1 s.1.45 Tk 1 s.1.45 Tk 1 s.1.45 Tk1 tot Tk1 tot Tk1 tot Tk1 tot Tk2 Tk2 Tk2 Tk2 Tk3 Tk3 Tk3 Tk3 Tk4 Tk4 Tk4 Tk4<br />
superficie kmq S 0.055 0.055 0.055 0.055 0.081 0.081 0.081 0.081 0.186 0.186 0.186 0.186 0.035 0.035 0.035 0.035 0.081 0.081 0.081 0.081<br />
lunghezza dell'asta princip<strong>ale</strong> km L 0.274 0.274 0.274 0.274 0.566 0.566 0.566 0.566 0.733 0.733 0.733 0.733 0.517 0.517 0.517 0.517 0.632 0.632 0.632 0.632<br />
pendenza dell'asta princip<strong>ale</strong> m/m J 0.05 0.05 0.05 0.05 0.03 0.03 0.03 0.03 0.02 0.02 0.02 0.02 0.07 0.07 0.07 0.07 0.08 0.08 0.08 0.08<br />
Quota della sezione termin<strong>ale</strong> m slm Ho 2.33 2.33 2.33 2.33 1.37 1.37 1.37 1.37 2.33 2.33 2.33 2.33 2.18 2.18 2.18 2.18 1.84 1.84 1.84 1.84<br />
Altitu<strong>di</strong>ne med<strong>ia</strong> m slm Hm 19.69 19.69 19.69 19.69 18.73 18.73 18.73 18.73 21.90 21.90 21.90 21.90 42.18 42.18 42.18 42.18 51.84 51.84 51.84 51.84<br />
Velocità med<strong>ia</strong> in alveo m/s V 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3<br />
Curve Number CN 94 94 94 94 95 95 95 95 95 95 95 95 94 94 94 94 94 94 94 94<br />
c 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02<br />
Coefficiente Sirch<strong>ia</strong>-Fassò Ψ 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1<br />
Zona idrografica (S-F riv<strong>is</strong>to) Zi 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11<br />
Coefficiente riduttivo Pa 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5<br />
Gruppo pluviometrico (Cao-Puddu) Gc 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3<br />
Zona Deidda-Piga-Sechi Zo 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2<br />
Altezza med<strong>ia</strong> giornaliera mm Hg 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70 70<br />
Esposizione (or=1, occ=0) E 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1<br />
applicazione ARF ARFsn 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0<br />
tempo <strong>di</strong> corrivazione (0=calcolato) ore Tcc 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2<br />
estensione della piogg<strong>ia</strong> prima e dopo h/h Dp 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0<br />
Tempo <strong>di</strong> ritorno e probabilità <strong>di</strong> non superamento<br />
tempo <strong>di</strong> ritorno <strong>an</strong>ni Tr 50 100 200 500 50 100 200 500 50 100 200 500 50 100 200 500 50 100 200 500<br />
probabilità <strong>di</strong> non superamento <strong>an</strong>nua p 0.98 0.99 0.995 0.998 0.98 0.99 0.995 0.998 0.98 0.99 0.995 0.998 0.98 0.99 0.995 0.998 0.98 0.99 0.995 0.998<br />
frattile della d<strong>is</strong>tribuzione norm<strong>ale</strong> u 2.054 2.326 2.576 2.878 2.054 2.326 2.576 2.878 2.054 2.326 2.576 2.878 2.054 2.326 2.576 2.878 2.054 2.326 2.576 2.878<br />
Tempo <strong>di</strong> corrivazione<br />
Viparelli ore TcV 0.025 0.025 0.025 0.025 0.052 0.052 0.052 0.052 0.068 0.068 0.068 0.068 0.048 0.048 0.048 0.048 0.059 0.059 0.059 0.059<br />
G<strong>ia</strong>ndotti ore TcG 0.404 0.404 0.404 0.404 0.595 0.595 0.595 0.595 0.798 0.798 0.798 0.798 0.302 0.302 0.302 0.302 0.369 0.369 0.369 0.369<br />
Ventura ore TcR 0.127 0.127 0.127 0.127 0.214 0.214 0.214 0.214 0.357 0.357 0.357 0.357 0.088 0.088 0.088 0.088 0.131 0.131 0.131 0.131<br />
Pasini ore TcP 0.114 0.114 0.114 0.114 0.230 0.230 0.230 0.230 0.362 0.362 0.362 0.362 0.105 0.105 0.105 0.105 0.145 0.145 0.145 0.145<br />
VAPI ore TcVP 0.593 0.593 0.593 0.593 0.774 0.774 0.774 0.774 1.037 1.037 1.037 1.037 0.615 0.615 0.615 0.615 0.781 0.781 0.781 0.781<br />
Tempo <strong>di</strong> corrivazione assunto ore Tc 0.200 0.200 0.200 0.200 0.200 0.200 0.200 0.200 0.200 0.200 0.200 0.200 0.200 0.200 0.200 0.200 0.200 0.200 0.200 0.200<br />
Coefficiente <strong>di</strong> riduzione are<strong>ale</strong><br />
ARF Wallingford ARFw 0.975 0.975 0.975 0.975 0.971 0.971 0.971 0.971 0.961 0.961 0.961 0.961 0.979 0.979 0.979 0.979 0.971 0.971 0.971 0.971<br />
ARF US Weather Service ARFu 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 0.999 0.999 0.999 0.999 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000<br />
ARF 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1<br />
Sirch<strong>ia</strong>-Fassò<br />
portata <strong>di</strong> piena Qsf 3.40 3.40 3.40 3.40 4.82 4.82 4.82 4.82 10.18 10.18 10.18 10.18 2.30 2.30 2.30 2.30 4.84 4.84 4.84 4.84<br />
Sirch<strong>ia</strong>-Fassò riv<strong>is</strong>to<br />
coefficiente riduttivo per il tempo <strong>di</strong> ritorno Ps 0.920 1.070 1.220 1.430 0.920 1.070 1.220 1.430 0.920 1.070 1.220 1.430 0.920 1.070 1.220 1.430 0.920 1.070 1.220 1.430<br />
portata <strong>di</strong> piena Qsfr 1.57 1.82 2.08 2.43 2.22 2.58 2.94 3.44 4.68 5.45 6.21 7.28 1.06 1.23 1.41 1.65 2.23 2.59 2.95 3.46<br />
Lazzari<br />
controllo SHm 1.08 1.08 1.08 1.08 1.51 1.51 1.51 1.51 4.07 4.07 4.07 4.07 1.49 1.49 1.49 1.49 4.20 4.20 4.20 4.20<br />
applicabilità Lazzari / TCEV NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO<br />
med<strong>ia</strong> mu -1.758 -1.758 -1.758 -1.758 -1.648 -1.648 -1.648 -1.648 -1.326 -1.326 -1.326 -1.326 -1.652 -1.652 -1.652 -1.652 -1.316 -1.316 -1.316 -1.316<br />
scarto sigma 0.441 0.441 0.441 0.441 0.441 0.441 0.441 0.441 0.441 0.441 0.441 0.441 0.441 0.441 0.441 0.441 0.441 0.441 0.441 0.441<br />
portata <strong>di</strong> piena Ql 0.14 0.19 0.24 0.33 0.18 0.24 0.31 0.42 0.38 0.50 0.65 0.88 0.18 0.24 0.31 0.42 0.39 0.51 0.66 0.90<br />
Lazzari mo<strong>di</strong>ficato<br />
med<strong>ia</strong> muM 0.727 0.727 0.727 0.727 0.835 0.835 0.835 0.835 1.067 1.067 1.067 1.067 0.606 0.606 0.606 0.606 0.837 0.837 0.837 0.837<br />
scarto sigmaM 1.022 1.022 1.022 1.022 1.022 1.022 1.022 1.022 1.022 1.022 1.022 1.022 1.022 1.022 1.022 1.022 1.022 1.022 1.022 1.022<br />
portata <strong>di</strong> piena Qlm 16.90 22.33 28.81 39.25 18.82 24.87 32.09 43.71 23.74 31.37 40.48 55.15 14.97 19.78 25.53 34.78 18.85 24.91 32.15 43.79<br />
TCEV<br />
T1 T1 0.271 0.271 0.271 0.271 0.348 0.348 0.348 0.348 0.597 0.597 0.597 0.597 0.204 0.204 0.204 0.204 0.349 0.349 0.349 0.349<br />
L1 L1 4.571 4.571 4.571 4.571 4.571 4.571 4.571 4.571 4.571 4.571 4.571 4.571 4.571 4.571 4.571 4.571 4.571 4.571 4.571 4.571<br />
T2 T2 1.594 1.594 1.594 1.594 2.048 2.048 2.048 2.048 3.515 3.515 3.515 3.515 1.203 1.203 1.203 1.203 2.056 2.056 2.056 2.056<br />
L2 L2 0.510 0.510 0.510 0.510 0.510 0.510 0.510 0.510 0.510 0.510 0.510 0.510 0.510 0.510 0.510 0.510 0.510 0.510 0.510 0.510<br />
portata <strong>di</strong> piena Qtcev 5.19 6.37 7.54 8.92 6.66 8.17 9.70 11.55 11.44 13.83 16.58 20.09 3.94 4.82 5.62 6.74 6.68 8.20 9.74 11.61<br />
Razion<strong>ale</strong> (Piga-Liguori)<br />
Coefficienti Piga-Liguori A 1.379048 1.379048 1.379048 1.379048 1.379048 1.379048 1.379048 1.379048 1.379048 1.379048 1.379048 1.379048 1.379048 1.379048 1.379048 1.379048 1.379048 1.379048 1.379048 1.379048<br />
B 0.164598 0.164598 0.164598 0.164598 0.164598 0.164598 0.164598 0.164598 0.164598 0.164598 0.164598 0.164598 0.164598 0.164598 0.164598 0.164598 0.164598 0.164598 0.164598 0.164598<br />
C 0.418212 0.418212 0.418212 0.418212 0.418212 0.418212 0.418212 0.418212 0.418212 0.418212 0.418212 0.418212 0.418212 0.418212 0.418212 0.418212 0.418212 0.418212 0.418212 0.418212<br />
D 0.009093 0.009093 0.009093 0.009093 0.009093 0.009093 0.009093 0.009093 0.009093 0.009093 0.009093 0.009093 0.009093 0.009093 0.009093 0.009093 0.009093 0.009093 0.009093 0.009093<br />
Curve Number ss 16.21276596 16.21276596 16.21276596 16.21276596 13.36842105 13.36842105 13.36842105 13.36842105 13.36842105 13.36842105 13.36842105 13.36842105 16.21276596 16.21276596 16.21276596 16.21276596 16.21276596 16.21276596 16.21276596 16.21276596<br />
altezza <strong>di</strong> precipitazione precedente Hc1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0<br />
altezza <strong>di</strong> precipitazione complessiva Hc2 25.8 28.5 31.2 34.8 25.8 28.5 31.2 34.8 25.8 28.5 31.2 34.8 25.8 28.5 31.2 34.8 25.8 28.5 31.2 34.8<br />
altezza <strong>di</strong> precipitazione critica Hc 25.8 28.5 31.2 34.8 25.8 28.5 31.2 34.8 25.8 28.5 31.2 34.8 25.8 28.5 31.2 34.8 25.8 28.5 31.2 34.8<br />
coefficiente Fi Fic 0.603 0.627 0.649 0.674 0.649 0.672 0.692 0.716 0.649 0.672 0.692 0.716 0.603 0.627 0.649 0.674 0.603 0.627 0.649 0.674<br />
portata <strong>di</strong> piena (Piga-Liguori) Qrpl 1.18 1.36 1.54 1.78 1.87 2.14 2.42 2.79 4.33 4.95 5.58 6.44 0.76 0.88 0.99 1.15 1.75 2.01 2.28 2.64<br />
Razion<strong>ale</strong> (TCEV)<br />
Deidda-Piga-Sechi Hd 12.492 12.492 12.492 12.492 12.492 12.492 12.492 12.492 12.492 12.492 12.492 12.492 12.492 12.492 12.492 12.492 12.492 12.492 12.492 12.492<br />
Hd1 12.492 12.492 12.492 12.492 12.492 12.492 12.492 12.492 12.492 12.492 12.492 12.492 12.492 12.492 12.492 12.492 12.492 12.492 12.492 12.492<br />
aa 2.288 2.616 2.944 3.377 2.288 2.616 2.944 3.377 2.288 2.616 2.944 3.377 2.288 2.616 2.944 3.377 2.288 2.616 2.944 3.377<br />
durate superiori all'ora nns -0.001 -0.003 -0.004 -0.006 -0.001 -0.003 -0.004 -0.006 -0.001 -0.003 -0.004 -0.006 -0.001 -0.003 -0.004 -0.006 -0.001 -0.003 -0.004 -0.006<br />
durate inferiori all'ora nni 0.1381 0.1755 0.2068 0.2388 0.1381 0.1755 0.2068 0.2388 0.1381 0.1755 0.2068 0.2388 0.1381 0.1755 0.2068 0.2388 0.1381 0.1755 0.2068 0.2388<br />
nn 0.1381 0.1755 0.2068 0.2388 0.1381 0.1755 0.2068 0.2388 0.1381 0.1755 0.2068 0.2388 0.1381 0.1755 0.2068 0.2388 0.1381 0.1755 0.2068 0.2388<br />
altezza <strong>di</strong> precipitazione precedente Hp1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0<br />
altezza <strong>di</strong> precipitazione complessiva Hp2 22.9 24.6 26.4 28.7 22.9 24.6 26.4 28.7 22.9 24.6 26.4 28.7 22.9 24.6 26.4 28.7 22.9 24.6 26.4 28.7<br />
altezza <strong>di</strong> precipitazione Hp 22.9 24.6 26.4 28.7 22.9 24.6 26.4 28.7 22.9 24.6 26.4 28.7 22.9 24.6 26.4 28.7 22.9 24.6 26.4 28.7<br />
coefficiente Fi Fip 0.573 0.592 0.608 0.629 0.621 0.639 0.654 0.674 0.621 0.639 0.654 0.674 0.573 0.592 0.608 0.629 0.573 0.592 0.608 0.629<br />
portata <strong>di</strong> piena (Deidda-Piga-Sechi) Q 1.00 1.11 1.22 1.37 1.59 1.76 1.93 2.16 3.67 4.06 4.46 5.00 0.64 0.71 0.79 0.89 1.48 1.64 1.80 2.03<br />
SINTESI<br />
tempo <strong>di</strong> ritorno <strong>an</strong>ni Tr 50 100 200 500 50 100 200 500 50 100 200 500 50 100 200 500 50 100 200 500<br />
Sirch<strong>ia</strong>-Fassò mc/s Q 3.40 3.40 3.40 3.40 4.82 4.82 4.82 4.82 10.18 10.18 10.18 10.18 2.30 2.30 2.30 2.30 4.84 4.84 4.84 4.84<br />
Sirch<strong>ia</strong>-Fassò riv<strong>is</strong>to mc/s Q 1.57 1.82 2.08 2.43 2.22 2.58 2.94 3.44 4.68 5.45 6.21 7.28 1.06 1.23 1.41 1.65 2.23 2.59 2.95 3.46<br />
Lazzari mc/s Q 0.14 0.19 0.24 0.33 0.18 0.24 0.31 0.42 0.38 0.50 0.65 0.88 0.18 0.24 0.31 0.42 0.39 0.51 0.66 0.90<br />
Lazzari mo<strong>di</strong>ficato mc/s Q 16.90 22.33 28.81 39.25 18.82 24.87 32.09 43.71 23.74 31.37 40.48 55.15 14.97 19.78 25.53 34.78 18.85 24.91 32.15 43.79<br />
TCEV mc/s Q 5.19 6.37 7.54 8.92 6.66 8.17 9.70 11.55 11.44 13.83 16.58 20.09 3.94 4.82 5.62 6.74 6.68 8.20 9.74 11.61<br />
Razion<strong>ale</strong> (Piga-Liguori) mc/s Q 1.18 1.36 1.54 1.78 1.87 2.14 2.42 2.79 4.33 4.95 5.58 6.44 0.76 0.88 0.99 1.15 1.75 2.01 2.28 2.64<br />
Razion<strong>ale</strong> (TCEV) mc/s Q 1.00 1.11 1.22 1.37 1.59 1.76 1.93 2.16 3.67 4.06 4.46 5.00 0.64 0.71 0.79 0.89 1.48 1.64 1.80 2.03