Landslides (2009) 3:181-194 Diana Salciarini . Jonathan W. Godt . Pietro Conversini . Rex L. Baum . John A. Michael 授授授授 授授授授 : : 授授授 授授 授授授 授授 授授 授授 : : 79842019 79842019 授授授 授授授 : : 授授授 授授授
Jan 03, 2016
Landslides (2009) 3:181-194Diana Salciarini Jonathan W. Godt Pietro Conversini Rex L. Baum John A. Michael: :79842019:
TRIGRSTRIGRSTRIGRS
22.77~27.63mm69.13~79.68mm
(//)(mm)11996/11/2031.221999/2/1040.431999/4/1723.442000/8/3128.4
50m(5m*5m)
300m~1300m
= C = = tZdlb = W = S =
TRIGRS 2002 4 Richards equations
= = = KL = (xy)KZ =
xyEq. (2)D0 = Ksat/C0Ksat = D0 =C0 =D1 = D 0/cos2 Z= z/cos Z =z =
Eq. (3)Eq. (5)
TRIGRSBaum et al.
TRIGRSDTMTRIGRS
()
()
()
()
()
()
dlb
dwtdlb (dwt-dlb)/dlb * 100%25%
()dwt=25%dlb
(dwt=25%dlb
()dwt=25%dlb
()dwt=25%dlbOK
()dwt=0%dlb
()dwt=50%dlb
()dwt=100%dlb
3
80%TRIGRS
Modeling regional initiation of rainfall-induced shallow landslides in the eastern Umbria Region of central Italy* - [11] *3001300m2200m
*830~944mm/year11126763.16~78.6822.77~27.63
*The landslide inventory map and historical rainfall for the study area
800m25~303000~16000m3
6
Forsivo 2101999 7 10 16800m25~303000~16000m3
6
Forsivo 2101999 7 10 16
**TRIGRS
TRIGRS(after Iverson 2000;Godt 2004)TRIGRS(Iverson 2000; Baum et al. 2002; Savage et al. 2003, 2004). IdwtzZ=z cos()
FS>1FS=1 FS