南昌工程学院本科毕业设计
C?1?m1m21?1.523?4.174??1.822
m1(m2?m1)1.523?(4.174?1.523) f?A?BA?B2B?()?(?C) 22m23.432?13.0273.432?13.027213.027?()?(?1.822) 224.174?0.306?tan?36?30???2.42 所以 K?f0.306
5.2.3上游坡正常蓄水位2820.50m
上游坡正常蓄水位2820.50m ①α2=17.1 ,α1=37.01:m11:m2图5-8
①由图5-8可知：?2?17.1?,?1?37.0?, m 1 = 1.327 ,m 2 = 3.251.
W1?1?(5.23?5.3?4?7)??27.86? 21W2??5.23?229.2??599.36?
2又已知： C?0,??36?30?. 土块BCDE的平衡式为：
P1?W1sin?1?1W1cos?1tan?1?0 K-45-
土体ADE的平衡式为：
南昌工程学院本科毕业设计
11W2cos?2tan?2?P1sin(?1??2)tan?2?W2sin?2?P1cos(?1??2)?0 KKtan?因为 ?1??2??，令 ?f ，而
Kf?则：
A?BA?B2B?()?(?C) 22m21?m2m21?1.32723.251A?????3.516
m2?m1m13.251?1.3271.327B?W2599.36?A??3.516?75.641 W127.86?C?1?m1m21?1.327?3.251??2.081
m1(m2?m1)1.327?(3.251?1.327) f?A?BA?B2B?()?(?C) 22m23.516?75.6413.516?75.641275.641?()?(?2.081) 223.251?0.322?tan?36?30???2.298 所以 K?f0.322 上游坡正常蓄水位2820.50m ②α2=17.1 ,α1=43.81:m11:m2图5-9
②由图5-9可知：?2?17.1?,?1?43.8?, m 1 = 1.043 ,m 2 = 3.251.
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南昌工程学院本科毕业设计
W1?1?(5.23?5.3?2?7)??20.86? 21W2??5.23?229.2??599.36?
2又已知： C?0,??36?30?. 土块BCDE的平衡式为：
P1?W1sin?1?1W1cos?1tan?1?0 K土体ADE的平衡式为：
11W2cos?2tan?2?P1sin(?1??2)tan?2?W2sin?2?P1cos(?1??2)?0 KKtan?因为 ?1??2??，令 ?f ，而
Kf?则：
A?BA?B2B?()?(?C) 22m21?m2m21?1.04323.251A?????2.947
m2?m1m13.251?1.0431.043B?W2599.36?A??2.947?84.675 W120.86?C?1?m1m21?1.043?3.251??1.907
m1(m2?m1)1.043?(3.251?1.043) f?A?BA?B2B?()?(?C) 22m22.947?84.6752.947?84.675284.675?()?(?1.907) 223.251?0.320?tan?36?30???2.312 所以 K?f0.320
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南昌工程学院本科毕业设计
上游坡正常蓄水位2820.50m ③α2=17.3 ,α1=33.71:m11:m2图5-10
③由图5-10可知：?2?17.3?,?1?33.7?, m 1 = 1.499 ,m 2 = 3.211.
W1?1?(4.17?8.5?4?7)??31.723? 21W2??4.17?226??471.21?
2又已知： C?0,??36?30?. 土块BCDE的平衡式为：
P1?W1sin?1?1W1cos?1tan?1?0 K土体ADE的平衡式为：
11W2cos?2tan?2?P1sin(?1??2)tan?2?W2sin?2?P1cos(?1??2)?0 KKtan?因为 ?1??2??，令 ?f ，而
Kf?则：
A?BA?B2B?()?(?C) 22m21?m2m21?1.44923.211A?????3.127
m2?m1m13.211?1.4991.499B?W2471.21?A??3.127?46.445 W131.723?-48-
南昌工程学院本科毕业设计
C?1?m1m21?1.499?3.211??2.265
m1(m2?m1)1.499?(3.211?1.499) f?A?BA?B2B?()?(?C) 22m23.127?46.4453.127?46.445246.445?()?(?2.265) 223.211?0.340?tan?36?30???2.176 所以 K?f0.340
5.2.4下游坡设计水位时2754.78m
下游坡设计洪水位2754.78m ①α2=5.2 ,α1=25.91:m11:m2图5-11
①由图5-11可知：?2?5.2?,?1?25.9?, m 1 = 2.059 ,m 2 = 10.988
W1?1?(14.25?146.03?4?72.72)??1185.904? 21W2??14.25?52.34??372.9225?
2又已知： C?0,??36?30?. 土块BCDE的平衡式为：
P1?W1sin?1?1W1cos?1tan?1?0 K土体ADE的平衡式为：
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虞江心墙土石坝水利枢纽计算00002 - 图文
