拦水坝稳定性计算
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坝稳定计算 拦水坝- 1 拦水坝-2 拦水坝-4
流量Q=
1.3
1.6
1.9
坝宽B=
6
4
7
水γ=
9.8
9.8
9.8
土内摩擦角φ＝
28
28
28
土γ=
20
20
20
砌石γ=
24
24
24
坝高ΔH=
0.8
0.8
1.5
基础埋深h=
1
1
1
挡水面宽b1=
0.6
0.6
1.125
坝顶宽b2=
1
1
1
坝后宽b3=
0.8
0.8
3.408
3.408
11.36
11.36
4.544
4.544
34.08
27.264
22.5573475 8.740051991
7.0630568 4.520356351
1.875 0.3125
127.898715 86.51614375 32.9497184 15.44075951
3.88163302 5.603101563
14.6 5
9.8 28 20 24 0.8 1 0.6 1 0.8 80 0.4 1.4319828 1.14558624
2.8
3
9.8
28
20
24
0.8
0.8
0.6
1
0.8
80 坝高
0.4
0.6
0.66943295 坝0.基85础28底58
0.53554636 宽
0.6
0.4
0.4
0.5
0.98053 0.693846 1.831983 1.169433
15.876
12.544 2.05 2.05
1.7
1.7
25.2601766 10.49670866 B/6
2.06987844 1.3247222 0.341667 0.341667 0.283333 0.283333
2.352
2.352
8.42005886 3.936265746
14.0334314 6.560442911
3.408
3.408 11.98125
坝身浮重力G2=
11.36
11.36
21.3
坝身浮重力G3=
4.544
4.544 15.975
坝身浮重力G4=
34.08
34.08 51.475
背水面水平水压力= 7.082917 8.3374606 7.47453089
1/2背水面被动土压力= 7.0630568 7.0630568 7.0630568
挡水面主动土压力= 1.8412708 2.0698784 2.06987844
挡水面上水重力1=
2.352
2.352 8.26875
挡水面上水重力2= 1.4868071 2.2375181 3.23965084
坝顶上水重力= 2.4780118 3.7291968 2.87968964
坝身浮重力G1=
2.30235539 2.140462429
满足
满足
-0.0142205 0.003942235
满足
满足
31.4239458 25.00432251
33.7406294 24.51626804
0.83333333
0.5
1.5
地基承载力R=
80
80
80
坝底摩擦系数μ=
0.4
0.4
0.4
坝顶水位高H0= 0.2528584 0.3805303 0.29384588
下游水位H下= 0.2022867 0.3044242 0.23507671
挡水面水平水压力1= 15.876 15.876 30.625
挡水面水平水压力2= 4.4604213 6.7125543 7.19922409
(1)抗倾覆验算: 抗力弯矩Mag= 85.022495 89.0ห้องสมุดไป่ตู้2158 243.9569 倾覆弯矩Ma= 14.153736 16.256858 35.2098229
Mag/ma= 6.0070708 5.4753604 6.92866023
(2)抗滑验算:
μΣG/Pw= 2.9736511 2.6662899 1.81601204
满足
满足
满足
(3)地基承载力验算
偏心矩e= 0.0130939 0.0210265 -0.0008102
e<B/6? 满足
满足
满足
基底竖直压力
σmax= 25.693075 27.064421 31.7144714
σmin= 24.064275 24.361175 31.7996475
B/6
0.4 0.6666667 1.16666667
流量Q=
1.3
1.6
1.9
坝宽B=
6
4
7
水γ=
9.8
9.8
9.8
土内摩擦角φ＝
28
28
28
土γ=
20
20
20
砌石γ=
24
24
24
坝高ΔH=
0.8
0.8
1.5
基础埋深h=
1
1
1
挡水面宽b1=
0.6
0.6
1.125
坝顶宽b2=
1
1
1
坝后宽b3=
0.8
0.8
3.408
3.408
11.36
11.36
4.544
4.544
34.08
27.264
22.5573475 8.740051991
7.0630568 4.520356351
1.875 0.3125
127.898715 86.51614375 32.9497184 15.44075951
3.88163302 5.603101563
14.6 5
9.8 28 20 24 0.8 1 0.6 1 0.8 80 0.4 1.4319828 1.14558624
2.8
3
9.8
28
20
24
0.8
0.8
0.6
1
0.8
80 坝高
0.4
0.6
0.66943295 坝0.基85础28底58
0.53554636 宽
0.6
0.4
0.4
0.5
0.98053 0.693846 1.831983 1.169433
15.876
12.544 2.05 2.05
1.7
1.7
25.2601766 10.49670866 B/6
2.06987844 1.3247222 0.341667 0.341667 0.283333 0.283333
2.352
2.352
8.42005886 3.936265746
14.0334314 6.560442911
3.408
3.408 11.98125
坝身浮重力G2=
11.36
11.36
21.3
坝身浮重力G3=
4.544
4.544 15.975
坝身浮重力G4=
34.08
34.08 51.475
背水面水平水压力= 7.082917 8.3374606 7.47453089
1/2背水面被动土压力= 7.0630568 7.0630568 7.0630568
挡水面主动土压力= 1.8412708 2.0698784 2.06987844
挡水面上水重力1=
2.352
2.352 8.26875
挡水面上水重力2= 1.4868071 2.2375181 3.23965084
坝顶上水重力= 2.4780118 3.7291968 2.87968964
坝身浮重力G1=
2.30235539 2.140462429
满足
满足
-0.0142205 0.003942235
满足
满足
31.4239458 25.00432251
33.7406294 24.51626804
0.83333333
0.5
1.5
地基承载力R=
80
80
80
坝底摩擦系数μ=
0.4
0.4
0.4
坝顶水位高H0= 0.2528584 0.3805303 0.29384588
下游水位H下= 0.2022867 0.3044242 0.23507671
挡水面水平水压力1= 15.876 15.876 30.625
挡水面水平水压力2= 4.4604213 6.7125543 7.19922409
(1)抗倾覆验算: 抗力弯矩Mag= 85.022495 89.0ห้องสมุดไป่ตู้2158 243.9569 倾覆弯矩Ma= 14.153736 16.256858 35.2098229
Mag/ma= 6.0070708 5.4753604 6.92866023
(2)抗滑验算:
μΣG/Pw= 2.9736511 2.6662899 1.81601204
满足
满足
满足
(3)地基承载力验算
偏心矩e= 0.0130939 0.0210265 -0.0008102
e<B/6? 满足
满足
满足
基底竖直压力
σmax= 25.693075 27.064421 31.7144714
σmin= 24.064275 24.361175 31.7996475
B/6
0.4 0.6666667 1.16666667