Page 688 - 水土保持手冊_10612

2. 未淤滿( H = . 8 12 m )、最大流量( h = 2 m ； h = . 1 38 m ； h = 0 . 1 m )時
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(1)荷重分析( H = H − H = . 1 38 m ； H = m 2 H tanα = . 1 15 m ； H = h + H = . 3 38 m； H = H + h = 10 5 . m )
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作用力 符號 計算式 R R 作用點 力矩
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W 0 γ c m 1 H a 2 = 20 . 76 + 20.76 L − 2 m 1 H a 3 / = 11 . 23 233.0
5 .
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 . c m 2 H a 2 = 83 . 03 + 83.03 2 m 2 H a 3 / = . 5 07 421.0
3 0 γ
P wh 1 .0 5γ wc 2 ( h + H 1 )H 1 = . 4 08 +4.08 (H 1 3 / )(H 1 + 3h ) /(H 1 + 2h ) + H m = . 0 63 2.57
P wh 2 5.0 2 [ γ wc H 3 +γ w H m ]H m = 63 2 . +63.2 (H m 3 / )[H m + 3H 3 )] /[H m + 2H 3 )] = . 3 05 192.8
P wv 1 .0 γ wc m 2 H 1 2 = . 0 84 + 0.84 m 2 H 1 3 / + m 2 H 2 = . 0 88 0.74
5
P γ m H (H − H ) = . 1 64 +1.64 m H 2 / = . 3 25 5.3
靜水壓力 wv 2 wc 2 m 1 2 2 m
P wv 3 .0 5γ w m 2 H m (H m + H 2 ) = 30 1 . +30.1 m 2 H m 3 / = . 2 17 65.3

P wv 4 .0 5γ wc m 2 H m H 2 = 1 . 4 +4.1 2m 2 H m 3 / = . 4 34 17.8
土-4-9
P wv 5 .0 5γ wc ( + hh c )m 2 H a = 14 0 . +14.0 m 2 H a 2 / = 8 . 3 53.2
P wv 6 5.0 γ wc h ( c + h ck t ) 1 = . 3 82 +3.82 m 2 H a + t 1 2 / = 1 . 9 34.8
2
P 0 5 . K ac γ sub H m = 25 . 76
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 / = . 2 17 48.6
av
上揚力 U 0 γ w C B L H = 21 . 56 -21.56 L 3 / = . 4 17 -90.0
5 .
合 計 225.0 80.0 1616.0