Page 707 - 水土保持手冊_10612

(5)未淤滿( H m = . 8 12 m )、土石流體撞擊、土石流巨礫撞擊力( D = 0 . 1 m)
E

2
A.荷重分析[ H = H − H = . 1 38 m ； H = m 2 H m tanα = . 1 15 m ； H = h + H = . 1 38 m；q = γ me h DE = . 1 336 × . 0 62 = . 0 83 / t m ；
1
m
1
a
3
2
κ 2 = 1 − (H o ∑b op ) /(BH a ) = .0 744 ]
作用力 符號 計算式 R R 作用點 力矩
v
h
W .0 κ 2 γ c m 1 H a 2 =15.4 +15.4 L − 2 m 1 H a 3 / = 11 2 . 172.5
5
1
t
壩體自重 W κ 2 γ c 1 H a = 48.8 + 48.8 m 2 H a + t 1 2 / = 1 . 9 444.1
2
5
W .0 κ 2 γ c m 2 H a 2 = 61.8 + 61.8 2 m 2 H a 3 / = . 5 07 313.3
3
P γ H 2 =24.6 +24.6 H 3 / = 7 . 2 66.3
wh 05κ
靜水壓力 2 w m m
P wv 3 5.0 γ w m 2 H m ( H + H 2 ) = 30 0 . +30.0 m 2 H m 3 / = . 2 17 65.0
m
P 5 . ac sub H m + K ac q H m = 35 2 .
2
a 0 K γ
土砂壓力 P P a cos( + εδ ) = 13 . 86 +13.86 H m 3 / = 7 . 2 37.4
ah

土-4-29
P P a sin( + εδ ) = 32 . 35 +32.35 m 2 H m 3 / = 7 . 2 87.3
av
5 .
上揚力 U 0 γ w C B ( L H + H 2 ) = 17 4 . -17.4 L 3 / = 8 . 4 -83.5
m
2
土石流體撞擊力 P m h DE U DE / g = . 0 78 0.78 h d / 2 + H = . 8 43 6.9
f γ
m
土石流巨礫撞擊力 P 20 2 . U DE 6 5 / D E 2 / B = 3.1 +3.1 D E / 2 + H = . 8 62 26.72
m
d
合計 171.0 42.34 1136.0