Page 692 - 水土保持手冊_10612

4. 淤滿( H = H = 5 . 9 m )、地震、普通流量( h = 0 m )時
m
a
(1)荷重分析(1. H = 0 m ；2. H = m 2 H tanα = . 1 36 m ；3. H 3 = h + H 1 = 0)
1
2
m
作用力 符號 計算式 R R 作用點 力矩
h
v
W 5 . 0 γ c m 1 H a 2 = 20 . 76 + 20.76 L − 2 m 1 H a 3 / = 11 . 23 233.0
1
壩體自重 W γ c t 1 H a = 65 . 55 + 65.55 m 2 H a + t 1 2 / = 1 . 9 596.5
2
W 5 . 0 γ c m 2 H a 2 = 83 . 03 + 83.03 2 m 2 H a 3 / = . 5 07 421.0
3
P 0 γ H 2 = 45 1 . +45.1 H a 3 / = . 3 17 143.0
5 .
wh
靜水壓力 w m
5 .
P 0 γ w m 2 H m (H m + H 2 ) = 41 3 . + 41.3 m 2 H a 3 / = . 2 53 104.5
wv
P 5 . 0 K γ sub H a 2 = 35 . 27
a
a
土砂壓力 P P a cos( + εδ ) = 17 3 . +17.3 H a 3 / = . 3 17 54.84
ah
P P a sin( + εδ ) = 30 . 74 +30.74 m 2 H a 3 / = . 2 53 77.8
av

D 5 . 0 γ c K h m 1 H a 2 = . 4 57 +4.57 H a 3 / = . 3 17 14.5
土-4-13
1
地震時壩 D γ K t H = 14 4 . H 2 / = . 4 75
體慣性力 2 c h 1 a +14.4 a 68.4
D 5 . 0 γ c K h m 2 H a 2 = 18 3 . +18.3 H a 3 / = . 3 17 58.0
3
2
P 0 K ae 1 ( − K v )γ sub H m = 70 6 .
5 .
ae
地震時土 ∆ P P − P = 35 3 .
砂壓力增 ae ae a
量 ∆ P ∆P ae cos( + εδ ) = 17 3 . +17.3 6 . 0 H a = 7 . 5 98.6
aeh
∆ P ∆P ae sin( + εδ ) = 30 . 74 +30.74 m 2 H a 3 / = . 2 53 77.8
aev
上揚力 U 5 . 0 γ w C B L (H m + H 2 ) = 20 . 36 -20.36 L 3 / = . 4 17 -84.9
合 計 251.8 117.0 1863.0