南昌工程学院本科毕业设计
?(3.58?10?5)2?3.77?10?6?3.86?10?4?3.58?10?53.77?10?6?4.38m
(H1?T)2?(h?T)2q=k?
2?=3?10?8(71.7?32)2?(4.38?32)2??7.18?10?6m3/s?m
2?19.7心墙后的浸润线方程:
2?7.18?10?62?2.0?10?4?32?71.72?2.0?10?4?3222x?71.7??y?y
2.0?10?42.0?10?42.0?10?4化简得:
0.072x?9729.69?y2?64y
(3)校核水位与下游相应水位
校核水位2822.85m ,下游相应的最低水位为2754.94m。
k。=3.0?10?8m/s, k=2.0?10?4 m/s, KT=2.0×10-4 m/s , T=32m, δ=
?上??下2=
5.0?34.4?19.7m, m=2.5, L=166.5m, H1=72.85m, H2=4.94 m 2由qⅠ= qⅡ ,代入数据:
k3.0?10?82?10?4A1??=??1.31?10?6
?L?mH219.7166.5?2.5?4.94k?KT3?10?82?10?4A2?(?)T?(?)?32?3.58?10?5
19.7166.5?0.44?32?L?0.44Tk?A3?k?H1?kH22KTTH2(H1?2T)??L?mH2L?0.44T2
3?10?8?72.852?10?4?4.9422?2?10?4?32?4.94?(72.85?2?32)??19.7166.5?2.5?4.94166.5?0.44?32 ?4.0?10?4于是:
h?A2?A1A3?A2A12
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南昌工程学院本科毕业设计
?(3.58?10?5)2?1.31?10?6?4?10?4?3.58?10?51.31?10?6?5.11m
(H1?T)2?(h?T)2q=k?
2?=3?10?8(72.85?32)2?(5.11?32)2??7.32?10?6m3/s?m
2?19.7心墙后的浸润线方程:
2?7.32?10?62?2.0?10?4?32?72.852?2.0?10?4?3222x?72.85??y?y
2.0?10?42.0?10?42.0?10?4化简得:
0.073x?99969.52?y2?64y
Ⅱ-Ⅱ断面:
?图4-3
上游坝底高程取在2752m 处,下游坝底高程取在2805m 处,经简化近似等效为上下游坝底高程均在2780m,坝与地基的接触面近似为一水平面,覆盖层深28m。
(1)正常蓄水位和相应下游水位
正常蓄水位2820.50m ,下游相应的最低水位为2752.0m。
k。=3.0?10?8m/s, k=2.0?10?4 m/s, KT=2.0×10-4 m/s , T=28m , δ=
?上??下2=
5.0?22.4?13.7m, m=2.25, L=98m, H1=40.5m, H2=0m 2由qⅠ= qⅡ ,代入数据:
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南昌工程学院本科毕业设计
k3.0?10?82?10?4A1??=??2.0?10?6
?L?mH213.798?2.25?0k?KT3?10?82?10?4A2?(?)T?(?)?28?5.08?10?5
13.798?0.44?28?L?0.44Tk?A3?k?H1?kH22KTTH2(H1?2T)??L?mH2L?0.44T2
3?10?8?40.52?10?4?022?2?10?4?28?0?(40.5?2?28)??13.798?2.25?098?0.44?28 ?8.56?10?6于是:
h?A2?A1A3?A2A12
?(5.08?10?5)2?2.0?10?6?8.56?10?6?5.08?10?52.0?10?6?0.084m
(H1?T)2?(h?T)2q=k?
2?=3?10?8(40.5?28)2?(0.084?28)2??4.27?10?6m3/s?m
2?13.7心墙后的浸润线方程:
2?4.27?10?62?2.0?10?4?40.5?282?2.0?10?4?2822x?40.5??y?y ?4?4?42.0?102.0?102.0?10化简得:
0.043x?3908.25?y2?56y
(2)设计水位与下游相应的水位
k。=3.0?10?8m/s, k=2.0?10?4 m/s, KT=2.0×10-4 m/s , T=28m, δ=
?上??下2=
5.0?22.4?13.7m, m=2.25, L=98m, H1=41.7m, H2=0m 2由qⅠ= qⅡ ,代入数据:
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南昌工程学院本科毕业设计
k3.0?10?82?10?4A1??=??2.0?10?6
?L?mH213.798?2.25?0k?KT3?10?82?10?4A2?(?)T?(?)?28?5.08?10?5
13.798?0.44?28?L?0.44Tk?A3?k?H1?kH22KTTH2(H1?2T)??L?mH2L?0.44T2
3?10?8?40.52?10?4?022?2?10?4?28?0?(41.7?2?28)??13.798?2.25?098?0.44?28 ?8.92?10?6于是:
h?A2?A1A3?A2A12
?(5.08?10?5)2?2.0?10?6?8.92?10?6?5.08?10?52.0?10?6?0.088m
(H1?T)2?(h?T)2q=k?
2?=3?10?8(41.7?28)2?(0.088?28)2??4.46?10?6m3/s?m
2?13.7心墙后的浸润线方程:
2?4.46?10?62?2.0?10?4?41.7?2822?2.0?10?4?282x?41.7??y?y ?4?4?42.0?102.0?102.0?10化简得:
0.045x?4074.09?y2?56y
(3)校核水位与下游相应水位
k。=3.0?10?8m/s, k=2.0?10?4 m/s, KT=2.0×10-4 m/s, T=28m , δ=
?上??下2=
5.0?22.4?13.7m , m=2.25, L=98m, H1=42.85m,H2=0m 2由qⅠ= qⅡ ,代入数据:
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南昌工程学院本科毕业设计
k3.0?10?82?10?4A1??=??2.0?10?6
?L?mH213.798?2.25?0k?KT3?10?82?10?4A2?(?)T?(?)?28?5.08?10?5
13.798?0.44?28?L?0.44Tk?A3?k?H1?kH22KTTH2(H1?2T)??L?mH2L?0.44T2
3?10?8?42.852?10?4?022?2?10?4?28?0?(42.85?2?28)??13.798?2.25?098?0.44?28 ?9.27?10?6于是:
h?A2?A1A3?A2A12
?(5.08?10?5)2?2.0?10?6?9.27?10?6?5.08?10?52.0?10?6?0.091m
(H1?T)2?(h?T)2q=k?
2?=3?10?8(42.85?28)2?(0.091?28)2??4.63?10?6m3/s?m
2?13.7心墙后的浸润线方程:
2?4.63?10?62?2.0?10?4?42.85?282?2.0?10?4?2822x?42.85??y?y ?4?4?42.0?102.0?102.0?10化简得:
0.046x?4235.72?y2?56y
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