Page 705 - 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 ) = .0 744 ]
3
2
1
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
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 = 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

土-4-27
D K h W 1 = . 3 78 +3.78 H a 3 / = . 3 17 12.0
1
地震對壩 D K W = 12 0 . +12.0 H 2 / = . 4 75 56.85
體慣性力 2 h 2 a
D K h W 3 = 15 2 . +15.2 H a 3 / = . 3 17 48.0
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 2 ) = 20 0 . -20.0 L 3 / = 8 . 4 -96.0
m
B
合計 211.4 92.4 1500.0