Page 720 - 水土保持手冊_10612

(4)淤滿( H = 5 . 9 m )、地震、普通流量( h = 0 m)時
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 ) = 0.41]
3
1
2
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 =8.5 +8.5 L − 2 m 1 H a 3 / = 13 1 . 111.4
1
t
壩體自重 W κ 2 γ c 1 H a = 26.95 + 26.95 m 2 H a + t 1 2 / = 11 296.5
2
5 .
W 0 κ 2 γ c m 2 H a 2 = 42.6 + 42.6 2 m 2 H a 3 / = 3 . 6 268.4
3
P 0 ×γ × m × H ( H + H ) = 51 6 . +51.6 H 3 / = . 3 17 163.6
5 .
靜水壓力 wv 1 w 2 m m 2 m
2
P 0 5 . ×γ H m ×κ 2 =18.5 +18.5 (H m 3 / )(H m + 3H 3 ) /(H m + 2H 3 ) = . 3 17 58.6
wh
w
5 .
P 0 ×γ sub × K ac × H m 2 = 35 3 .
a
土砂壓力 P P a cos( + εδ ) = 13 9 . +13.9 H m 3 / = . 3 17 44.0
ah
P P a sin( + εδ ) = 32 4 . +32.4 m 2 H m 3 / = . 3 17 102.7

av
D K h W 1 = 1.87 +1.87 H a 3 / = . 3 17 5.93
土-4-42
1
地震對壩 D K W =5.93 +5.93 H 2 / = . 4 75 28.2
體慣性力 2 h 2 a
D K h W 3 = 9.4 +9.4 H a 3 / = . 3 17 29.8
3
5 .
P 0 K ae 1 ( − K v )γ sub H a 2 = 70 6 .
ae
地震時土 ∆ P P − P = 35 3 .
砂壓力增 ae ae a
量 ∆ P aeh ∆P ae cos( + εδ ) = 13 9 . +13.9 0 6 . H a = 7 . 5 79.23
∆ P aev ∆P ae sin( + εδ ) = 32 4 . +32.4 m 2 H a 3 / = . 2 53 82.0
上揚力 U 5 . 0 ×γ w × C × L ( × H + H + h ) = 23 5 . -23.5 L 3 / = 8 . 4 -112.8
B
m
2
合計 171.0 64.0 1158.0