Page 714 - 水土保持手冊_10612

(1)未淤滿( H = . 8 12 m)、地震、普通流量( h = 0 m)時
m
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 ；κ 2 = 1 − (H o ∑b op ) /(BH a ) = 0.41；
2
m
a
1
3
1
H = h + H + H = . 9 27 m ]
2
m
作用力 符號 計算式 R R 作用點 力矩
v
h
W 5 . 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
W 5 . 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 5 . 0 κ γ H 2 =13.5 +13.5 H 3 / = 7 . 2 36.5
靜水壓力 wh 2 w m m
P wv 3 5 . 0 γ w m 2 H m ( H + H 2 ) = 45 7 . +45.7 m 2 H m 3 / = 7 . 2 123.4
m
P 5 . 0 K ac γ sub H m = 25 . 76
2
a
土砂壓力 P P a cos( + εδ ) = 12 7 . +12.7 H m 3 / = 7 . 2 34.3
ah
P P a sin( + εδ ) = 22 4 . +22.4 m 2 H m 3 / = 7 . 2 60.5
av

上揚力 U 5 . 0 γ w C B L H = 20 0 . -20.0 L 3 / = 8 . 4 -96.0
土-4-36
D K h W 1 = 1.87 +1.87 H a 3 / = . 3 17 5.93
1
地震時壩 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
2
P 5 . 0 K ae 1 ( − K v )γ sub H m = 51 . 56
ae
地震時土 ∆ P P − P = 25 8 .
砂壓力增 ae ae a
量 ∆ P aeh ∆P ae cos( + εδ ) = 10 . 16 +10.16 6 . 0 H m = . 4 87 49.48
∆ P aev ∆P ae sin( + εδ ) = 23 7 . +23.7 m 2 H m 3 / = 7 . 2 64.0
合 計 150.0 51.3 998.0