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 E E E E I I I I H1 H1 H1 H1 H2 H2 H2 H2 Q Q Q Q<br />
superficie kmq S 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.25 0.25 0.25 0.25 0.42 0.42 0.42 0.42 0.13 0.13 0.13 0.13<br />
lunghezza dell'asta princip<strong>ale</strong> km L 0.57 0.57 0.57 0.57 0.57 0.57 0.57 0.57 0.73 0.73 0.73 0.73 0.93 0.93 0.93 0.93 0.75 0.75 0.75 0.75<br />
pendenza dell'asta princip<strong>ale</strong> m/m J 0.126 0.126 0.126 0.126 0.126 0.126 0.126 0.126 0.1635 0.1635 0.1635 0.1635 0.076 0.076 0.076 0.076 0.098 0.098 0.098 0.098<br />
Quota della sezione termin<strong>ale</strong> m slm Ho 16 16 16 16 16 16 16 16 20 20 20 20 4 4 4 4 7 7 7 7<br />
Altitu<strong>di</strong>ne med<strong>ia</strong> m slm Hm 46 46 46 46 46 46 46 46 80 80 80 80 72 72 72 72 66 66 66 66<br />
Velocità med<strong>ia</strong> in alveo m/s V 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2<br />
Curve Number CN 94 94 94 94 94 94 94 94 94 94 94 94 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 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0<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 0.079 0.079 0.079 0.079 0.079 0.079 0.079 0.079 0.101 0.101 0.101 0.101 0.129 0.129 0.129 0.129 0.104 0.104 0.104 0.104<br />
G<strong>ia</strong>ndotti ore TcG 0.549 0.549 0.549 0.549 0.549 0.549 0.549 0.549 0.499 0.499 0.499 0.499 0.604 0.604 0.604 0.604 0.418 0.418 0.418 0.418<br />
Ventura ore TcR 0.139 0.139 0.139 0.139 0.139 0.139 0.139 0.139 0.157 0.157 0.157 0.157 0.299 0.299 0.299 0.299 0.146 0.146 0.146 0.146<br />
Pasini ore TcP 0.134 0.134 0.134 0.134 0.134 0.134 0.134 0.134 0.152 0.152 0.152 0.152 0.286 0.286 0.286 0.286 0.159 0.159 0.159 0.159<br />
VAPI ore TcVP 0.753 0.753 0.753 0.753 0.753 0.753 0.753 0.753 0.922 0.922 0.922 0.922 1.258 1.258 1.258 1.258 0.869 0.869 0.869 0.869<br />
Tempo <strong>di</strong> corrivazione assunto ore Tc 0.079 0.079 0.079 0.079 0.079 0.079 0.079 0.079 0.101 0.101 0.101 0.101 0.129 0.129 0.129 0.129 0.104 0.104 0.104 0.104<br />
Coefficiente <strong>di</strong> riduzione are<strong>ale</strong><br />
ARF Wallingford ARFw 0.950 0.950 0.950 0.950 0.950 0.950 0.950 0.950 0.945 0.945 0.945 0.945 0.939 0.939 0.939 0.939 0.957 0.957 0.957 0.957<br />
ARF US Weather Service ARFu 0.999 0.999 0.999 0.999 0.999 0.999 0.999 0.999 0.999 0.999 0.999 0.999 0.998 0.998 0.998 0.998 0.999 0.999 0.999 0.999<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 8.40 8.40 8.40 8.40 8.40 8.40 8.40 8.40 13.26 13.26 13.26 13.26 21.09 21.09 21.09 21.09 7.39 7.39 7.39 7.39<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 3.86 4.49 5.12 6.01 3.86 4.49 5.12 6.01 6.10 7.10 8.09 9.48 9.70 11.28 12.86 15.08 3.40 3.95 4.51 5.28<br />
Lazzari<br />
controllo SHm 6.90 6.90 6.90 6.90 6.90 6.90 6.90 6.90 20.00 20.00 20.00 20.00 30.24 30.24 30.24 30.24 8.58 8.58 8.58 8.58<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 -1.155 -1.155 -1.155 -1.155 -1.155 -1.155 -1.155 -1.155 -0.810 -0.810 -0.810 -0.810 -0.676 -0.676 -0.676 -0.676 -1.085 -1.085 -1.085 -1.085<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 0.56 0.74 0.96 1.30 0.56 0.74 0.96 1.30 1.25 1.65 2.12 2.88 1.70 2.24 2.89 3.92 0.66 0.87 1.13 1.53<br />
Lazzari mo<strong>di</strong>ficato<br />
med<strong>ia</strong> muM 1.008 1.008 1.008 1.008 1.008 1.008 1.008 1.008 1.149 1.149 1.149 1.149 1.293 1.293 1.293 1.293 0.968 0.968 0.968 0.968<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 22.36 29.55 38.14 51.95 22.36 29.55 38.14 51.95 25.77 34.05 43.94 59.86 29.76 39.32 50.75 69.13 21.49 28.40 36.65 49.93<br />
TCEV<br />
T1 T1 0.520 0.520 0.520 0.520 0.520 0.520 0.520 0.520 0.723 0.723 0.723 0.723 1.010 1.010 1.010 1.010 0.474 0.474 0.474 0.474<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 3.060 3.060 3.060 3.060 3.060 3.060 3.060 3.060 4.254 4.254 4.254 4.254 5.946 5.946 5.946 5.946 2.790 2.790 2.790 2.790<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 10.02 12.25 14.26 17.18 10.02 12.25 14.26 17.18 13.77 16.90 20.15 24.19 19.48 23.69 27.68 33.75 9.09 10.96 13.15 15.94<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 16.21277 16.21276596 16.21277 16.21277 16.21277 16.21277 16.21277 16.21277 16.21277 16.21277 16.21277 16.21277 16.21277 16.21277 16.21277 16.21277 16.21277 16.212766 16.212766 16.21277<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 17.2 19.0 20.7 23.1 17.2 19.0 20.7 23.1 19.2 21.1 23.1 25.8 21.3 23.5 25.7 28.7 19.4 21.4 23.4 26.1<br />
altezza <strong>di</strong> precipitazione critica Hc 17.2 19.0 20.7 23.1 17.2 19.0 20.7 23.1 19.2 21.1 23.1 25.8 21.3 23.5 25.7 28.7 19.4 21.4 23.4 26.1<br />
coefficiente Fi Fic 0.500 0.525 0.548 0.576 0.500 0.525 0.548 0.576 0.528 0.553 0.576 0.603 0.555 0.580 0.603 0.629 0.531 0.556 0.579 0.606<br />
portata <strong>di</strong> piena (Piga-Liguori) Qrpl 4.53 5.24 5.98 6.99 4.53 5.24 5.98 6.99 6.94 8.01 9.12 10.64 10.69 12.33 14.00 16.30 3.57 4.13 4.70 5.48<br />
Razion<strong>ale</strong> (TCEV)<br />
Deidda-Piga-Sechi Hd 8.741 8.741 8.741 8.741 8.741 8.741 8.741 8.741 9.615 9.615 9.615 9.615 10.556 10.556 10.556 10.556 9.716 9.716 9.716 9.716<br />
Hd1 8.741 8.741 8.741 8.741 8.741 8.741 8.741 8.741 9.615 9.615 9.615 9.615 10.556 10.556 10.556 10.556 9.716 9.716 9.716 9.716<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 14.1 14.7 15.2 16.1 14.1 14.7 15.2 16.1 16.0 16.8 17.6 18.8 18.2 19.3 20.4 21.9 16.3 17.1 17.9 19.1<br />
altezza <strong>di</strong> precipitazione Hp 14.1 14.7 15.2 16.1 14.1 14.7 15.2 16.1 16.0 16.8 17.6 18.8 18.2 19.3 20.4 21.9 16.3 17.1 17.9 19.1<br />
coefficiente Fi Fip 0.448 0.458 0.468 0.483 0.448 0.458 0.468 0.483 0.482 0.494 0.506 0.523 0.515 0.530 0.543 0.562 0.486 0.498 0.511 0.527<br />
portata <strong>di</strong> piena (Deidda-Piga-Sechi) Q 3.32 3.53 3.75 4.09 3.32 3.53 3.75 4.09 5.29 5.70 6.12 6.73 8.46 9.22 9.99 11.10 2.74 2.95 3.17 3.50<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 8.40 8.40 8.40 8.40 8.40 8.40 8.40 8.40 13.26 13.26 13.26 13.26 21.09 21.09 21.09 21.09 7.39 7.39 7.39 7.39<br />
Sirch<strong>ia</strong>-Fassò riv<strong>is</strong>to mc/s Q 3.86 4.49 5.12 6.01 3.86 4.49 5.12 6.01 6.10 7.10 8.09 9.48 9.70 11.28 12.86 15.08 3.40 3.95 4.51 5.28<br />
Lazzari mc/s Q 0.56 0.74 0.96 1.30 0.56 0.74 0.96 1.30 1.25 1.65 2.12 2.88 1.70 2.24 2.89 3.92 0.66 0.87 1.13 1.53<br />
Lazzari mo<strong>di</strong>ficato mc/s Q 22.36 29.55 38.14 51.95 22.36 29.55 38.14 51.95 25.77 34.05 43.94 59.86 29.76 39.32 50.75 69.13 21.49 28.40 36.65 49.93<br />
TCEV mc/s Q 10.02 12.25 14.26 17.18 10.02 12.25 14.26 17.18 13.77 16.90 20.15 24.19 19.48 23.69 27.68 33.75 9.09 10.96 13.15 15.94<br />
Razion<strong>ale</strong> (Piga-Liguori) mc/s Q 4.53 5.24 5.98 6.99 4.53 5.24 5.98 6.99 6.94 8.01 9.12 10.64 10.69 12.33 14.00 16.30 3.57 4.13 4.70 5.48<br />
Razion<strong>ale</strong> (TCEV) mc/s Q 3.32 3.53 3.75 4.09 3.32 3.53 3.75 4.09 5.29 5.70 6.12 6.73 8.46 9.22 9.99 11.10 2.74 2.95 3.17 3.50