Page 709 - 水土保持手冊_10612

(6)淤滿( H = 5 . 9 m )、土石流體撞擊力、土石流巨礫撞擊力( D = 0 . 1 m)
E
m
A.荷重分析[ H 1 = 0 ； H = m 2 H m tanα = . 1 36 m ； H = h + H = 0 m ；κ 2 = 1 − (H o ∑b op ) /(BH a ) = .0 744 ；
2
3
1
2
κ 1 = (B E − b o / ) B E = . 0 31； B = B − b = 20 . 82 m ；q = γ m h DE = . 0 83 / t m ]
o
E
作用力 符號 計算式 R R 作用點 力矩

h
v
5
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
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
5
P .0 ×γ w × m 2 × H m (H m + H 2 ) = 42 . 56 +42.56 H m 3 / = . 3 17 134.9
1
wv
靜水壓力
P .0 5 ×γ H m 2 ×κ 2 =33.6 +33.6 (H m 3 / )(H m + 3H 3 ) /(H m + 2H 3 ) = . 3 17 106.4
wh
w
2
5 .
P 0 ×γ sub × K ac × H m + K ac q H m = 46 3 .
a
土砂壓力 P P a cos( + εδ ) = 18 . 24 +18.24 H m 3 / = . 3 17 57.8
ah
P P a sin( + εδ ) = 42 6 . +42.6 m 2 H m 3 / = . 3 17 135.0
av

5 .
上揚力 U 0 ×γ w ×C B × L × (H m + H 2 ) = 21 0 . -21.0 L 3 / = 8 . 4 -100.8
土-4-31
2
土石流體撞擊力 P 1 γ m h DE U DE / g = 0.24 +0.24 h DE / 2 + H = . 9 81 2.35
f κ
m
土石流巨礫撞擊力 P 20 2 . U DE 6 5 / D E 2 / B = . 3 72 +3.72 D E 2 / + H m = 10 0 . 37.2
d
合計 190.0 55.8 1302.8