123456：均质土石坝枢纽建筑物设计
第二次试算 R=160 m 计算过程计入表5-4：
图5-3正常蓄水位时下游坝坡稳定计算简图b
表5-4正常蓄水位时下游坝坡稳定计算表b
编号 -2 -1 0 1 2 3 4 5 6 7 8 0 0 156.673 163.712 143.466 154.096 180.45 216.978 260.896 273.597 135.636
A1 A2
0 0 17.2349 242.7616 365.4112 457.1808 533.2272 492.6432 382.1008 221.528 21.1392
A30 0 0 102.94 145.6 116.69 26.965 0 0 0 0
A4
30.7967 104.06 217.54 0 0 0 0 0 0 0 0
A5
149.577 145.6 145.6 42.6609 0 0 0 0 0 0 0
?1
20.4 20.4 20.4 20.4 20.4 20.4 20.4 20.4 20.4 20.4 20.4
?2
?319.8 19.8 19.8 19.8 19.8 19.8 19.8 19.8 19.8 19.8 19.8
16.5 16.5 16.5 16.5 16.5 16.5 16.5 16.5 16.5 16.5 16.5
?4
20.5 20.5 20.5 20.5 20.5 20.5 20.5 20.5 20.5 20.5 20.5
?5
18 18 18 18 18 18 18 18 18 18 18
b
16 16 16 16 16 16
?
0 0 0 0 0 17
sin?
0 0 0 0 0 0.2639
cos?
1 1 1 1 1 0.9646
sec?
1 1 1 1 1 1.0367
? ?'
23 23 23 23 23 23
tan?
0.37787 0.37787 0.37787 0.37787 0.37787 0.37787
40 40 40 40 40 40
tan?'
C 20 20 20 20 20 20
0.72654 0.72654 0.72654 0.72654 0.72654 0.72654
W1
0 0 3196.133 3339.725 2926.698 3143.558
27
123456：均质土石坝枢纽建筑物设计
16
16 16 16 16
24 30 37 44 53 0.36812 0.45399 0.54902 0.63742 0.73963 0.92978 0.89101 0.83581 0.77051 0.67301 1.07553 1.12233 1.19645 1.29784 1.48586 23 23 23 23 23 40 40 40 40 40 0.37787 0.37787 0.37787 0.37787 0.37787 0.72654 0.72654 0.72654 0.72654 0.72654 20 20 20 20 20 3681.172 4426.343 5322.278 5581.375 2766.97
W2
0 0 341.251 4806.68 7235.142 9052.18 10557.9 9754.335 7565.596 4386.254 418.5562
W30 0 0 1698.495 2402.4 1925.336 444.9159
0 0 0 0
W4
631.3324 2133.23 4459.57 0 0 0 0 0 0 0 0
2692.379 2620.8 2620.8 767.8962
0 0 0 0 0 0 0
W5W坝体0 0 3537.384 9844.9 12564.24 14121.07 14683.99 14180.68 12887.87 9967.629 3185.526
3323.711 4754.03 7080.37 767.8962
0 0 0 0 0 0 0
W堆石W坝体cos?tan?0 0 1336.671 3720.092 4747.649 5147.038 5159.013 4774.435 4070.345 2902.101 810.1122
W堆石cos?tan?'2414.809 3453.993 5144.172 557.9073
0 0 0 0 0 0 0
?W条块icos?tan?
Cbsec?
320 320 320 320 320 331.744 344.1696 359.1456 382.864 415.3088 475.4752
Wsin?
0 0 0 0 0 3726.551 5405.469 6437.886 7075.701 6353.566 2356.111
T S
Kc
2414.809 3453.993 6480.843 4278 4747.649 5147.038 5159.013 4774.435 4070.345 2902.101 810.1122
48147.05
31355.28
1.536 >1.35 满足 稳定 要求
第三次试算 R=180 m，b=18m. 计算过程计入表5-5。
28
123456：均质土石坝枢纽建筑物设计
图5-4正常蓄水位时下游坝坡稳定计算简图c 表5-5正常蓄水位时下游坝坡稳定计算表c
编号 -1
0 1 2 3 4 5 6 7 8
0 0 64.4184 221.403 162.367 171.736 204.851 252.612 307.674 69.7123
A1 A2
0 0 0 178.7796 387.3024 453.5658 386.4685 254.3814 59.9815 0
A30 0 0 56.782 66.28 0 0 0 0 0
A4
0 101.42 226.504 19.888 0 0 0 0 0 0
57.142 163.8 163.8 90.388 0 0 0 0 0 0
A5?1
20.4 20.4 20.4 20.4 20.4 20.4 20.4 20.4 20.4 20.4
19.8 19.8 19.8 19.8 19.8 19.8 19.8 19.8 19.8 19.8
?2
16.5 16.5 16.5 16.5 16.5 16.5 16.5 16.5 16.5 16.5
?3?4
20.5 20.5 20.5 20.5 20.5 20.5 20.5 20.5 20.5 20.5
?5
18 18 18 18 18 18 18 18 18 18
b ?
18 18 18 18 18 18 18 18 18 18
0 0 0 12 17 24 30 37 44 53
sin?
0 0 0 0.18738 0.2639 0.36812 0.45399 0.54902 0.63742 0.73963
cos?
1 1 1 0.98229 0.9646 0.92978 0.89101 0.83581 0.77051 0.67301
sec?
1 1 1 1.01803 1.0367 1.07553 1.12233 1.19645 1.29784 1.48586
?
23 23 23 23 23 23 23 23 23 23
?'
40 40 40 40 40 40 40 40 40 40
tan?
0.37787 0.37787 0.37787 0.37787 0.37787 0.37787 0.37787 0.37787 0.37787 0.37787
0.72654 0.72654 0.72654 0.72654 0.72654 0.72654 0.72654 0.72654 0.72654 0.72654
tan?'
C 20 20 20 20 20 20 20 20 20 20
W1
0 0 1314.135 4516.623 3312.291 3503.418 4178.956 5153.285 6276.55 1422.131
29
123456：均质土石坝枢纽建筑物设计
W2
0
0 0 3539.836 7668.588 8980.603 7652.076 5036.752 1187.634
0
W3
W4
0 2079.106 4643.328 407.7225
0 0 0 0 0 0
0 0 0 936.9014 1093.62 0 0 0 0 0
1028.565 2948.4 2948.4 1626.98 0 0 0 0 0 0
W5W坝体
0 0 1314.135 8993.361 12074.5 12484.02 11831.03 10190.04 7464.183 1422.131
1028.565 5027.506 7591.728 2034.703
0 0 0 0 0 0
W堆石W坝体cos?tan?0 0 496.5723 3338.137 4401.075 4386.086 3983.342 3218.294 2173.216 361.6625
W堆石cos?tan?'747.2936 3652.684 5515.694 1452.112
0 0 0 0 0 0
?W条块icos?tan?
Cbsec?
360 360 360 366.4908 373.212 387.1908 404.0388 430.722 467.2224 534.9096
Wsin?
0 0 0 2066.439 3186.46 4595.618 5371.17 5594.534 4757.82 1051.851
T S
Kc
747.2936 3652.684 6012.266 4790.249 4401.075 4386.086 3983.342 3218.294 2173.216 361.6625
37769.96
26623.89
1.4186 >1.35 满足 稳定 要求
5.3.2校核洪水位时下游坝坡稳定分析 第一次试算 R=180 m，b=18m.
计算过程计入表5-6中。
30
123456：均质土石坝枢纽建筑物设计
图5-5校核洪水位时下游坝坡稳定计算简图a
表5-6校核洪水位时下游坝坡稳定计算表a
编号 -1
0 1 2 3 4 5 6 7 8
0 0 70.9277 40.8906 42.7428 75.267 123.217 182.271 243.162 107.271
A1
A2
0 0 59.17 298.631 426.476 523.498 572.272 432.236 222.669 0
A30 0 10.4388 218.547 255.152 133.898 0 0 0 0
A4
0 52.6617 81.7384 0 0 0 0 0 0 0
104.07 267.369 267.35 58.6531 0 0 0 0 0 0
A5?1
20.4 20.4 20.4 20.4 20.4 20.4 20.4 20.4 20.4 20.4
19.8 19.8 19.8 19.8 19.8 19.8 19.8 19.8 19.8 19.8
?2
16.5 16.5 16.5 16.5 16.5 16.5 16.5 16.5 16.5 16.5
?3?4
20.5 20.5 20.5 20.5 20.5 20.5 20.5 20.5 20.5 20.5
?5
18 18 18 18 18 18 18 18 18 18
b
18 18 18 18 18 18 18 18 18 18
?
0 0 0 0 17 24 30 37 44 51
sin?
0 0 0 0 0.2639 0.3681 0.454 0.549 0.6374 0.7181
cos?
1 1 1 1 0.9646 0.92978 0.89101 0.83581 0.7705 0.6959
sec?
1 1 1 1 1.0367 1.07553 1.12233 1.19645 1.29784 1.437
?
23 23 23 23 23 23 23 23 23 23
?'
40 40 40 40 40 40 40 40 40 40
tan?
0.37787 0.37787 0.37787 0.37787 0.37787 0.37787 0.37787 0.37787 0.37787 0.37787
tan?'
0.72654 0.72654 0.72654 0.72654 0.72654 0.72654 0.72654 0.72654 0.72654 0.72654
C 20 20 20 20 20 20 20 20 20 20
W1
0 0 1446.93 834.168 871.953 1535.45 2513.63 3718.32 4960.5 2188.33
W2
0 0 1171.57 5912.89 8444.22 10365.3 11331 8558.27 4408.85 0
W3
W4
0 1079.56 1675.64 0 0 0 0 0 0 0
0 0 172.24 3606.02 4210 2209.32 0 0 0 0
1873.26 4812.64 4812.31 1055.76 0 0 0 0 0 0
W5W坝体
0 0 2790.73 10353.1 13526.2 14110 13844.6 12276.6 9369.35 2188.33
1873.26 5892.2 6487.94 1055.76 0 0 0 0 0 0
W堆石W坝体cos?tan?0 0 1054.53 3912.12 4930.2 4957.36 4661.29 3877.29 2727.88 575.443
W堆石cos?tan?'1360.997 4280.921 4713.75
?W条块icos?tan?
Cbsec? Wsin?
360 360 360 31
0 0 0
T S
1361 4280.92 5768.28
41838.53 29332.2
1.4263 >1.25 满足
Kc