【擁壁工】支持力係数の早見表(Φ0.1刻み)

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支持力の検討に使用する支持力係数は「国土交通省告示第1113号 その2」に記載の下表の値を使用します。

 内部摩擦角
支持力
係数
0度05度10度15度20度25度28度32度36度40度
以上
Nc5.16.58.311.014.820.725.835.550.675.3
0.00.10.41.12.96.811.222.044.493.7
Nq1.01.62.53.96.410.714.723.237.864.2

しかし、この表ではΦの間隔が広いため実務では困りますよね。

例えばΦが30°の場合、どの値を使えば良いのでしょうか。

Φの補完方法については以下の記載があります。

支持力係数の補完方法

この表に掲げる内部摩擦角以外の内部摩擦角に応じたNc、Nγ及びNqは、表に掲げる数値をそれぞれ直線的に補間した数値とする。

引用元:国土交通省告示 第1113号

上記方法でΦを0.1刻みとした場合の支持力係数表を以下に掲載します。

是非、実設計にご活用下さい。

目次

支持力係数(Φ0.1°刻み)

内部摩擦角
Φ
(°)
支持力係数
NqNc
0.01.05.10.0
0.11.05.10.0
0.21.05.20.0
0.31.05.20.0
0.41.05.20.0
0.51.15.20.0
0.61.15.30.0
0.71.15.30.0
0.81.15.30.0
0.91.15.40.0
1.01.15.40.0
1.11.15.40.0
1.21.15.40.0
1.31.25.50.0
1.41.25.50.0
1.51.25.50.0
1.61.25.50.0
1.71.25.60.0
1.81.25.60.0
1.91.25.60.0
2.01.25.70.0
2.11.35.70.0
2.21.35.70.0
2.31.35.70.0
2.41.35.80.0
2.51.35.80.1
2.61.35.80.1
2.71.35.90.1
2.81.35.90.1
2.91.35.90.1
3.01.45.90.1
3.11.46.00.1
3.21.46.00.1
3.31.46.00.1
3.41.46.10.1
3.51.46.10.1
3.61.46.10.1
3.71.46.10.1
3.81.56.20.1
3.91.56.20.1
4.01.56.20.1
4.11.56.20.1
4.21.56.30.1
4.31.56.30.1
4.41.56.30.1
4.51.56.40.1
4.61.66.40.1
4.71.66.40.1
4.81.66.40.1
4.91.66.50.1
5.01.66.50.1
5.11.66.50.1
5.21.66.60.1
5.31.76.60.1
5.41.76.60.1
5.51.76.70.1
5.61.76.70.1
5.71.76.80.1
5.81.76.80.1
5.91.86.80.2
6.01.86.90.2
6.11.86.90.2
6.21.86.90.2
6.31.87.00.2
6.41.97.00.2
6.51.97.00.2
6.61.97.10.2
6.71.97.10.2
6.81.97.10.2
6.91.97.20.2
7.02.07.20.2
7.12.07.30.2
7.22.07.30.2
7.32.07.30.2
7.42.07.40.2
7.52.17.40.3
7.62.17.40.3
7.72.17.50.3
7.82.17.50.3
7.92.17.50.3
8.02.17.60.3
8.12.27.60.3
8.22.27.70.3
8.32.27.70.3
8.42.27.70.3
8.52.27.80.3
8.62.27.80.3
8.72.37.80.3
8.82.37.90.3
8.92.37.90.3
9.02.37.90.3
9.12.38.00.3
9.22.48.00.4
9.32.48.00.4
9.42.48.10.4
9.52.48.10.4
9.62.48.20.4
9.72.48.20.4
9.82.58.20.4
9.92.58.30.4
10.02.58.30.4
10.12.58.40.4
10.22.68.40.4
10.32.68.50.4
10.42.68.50.5
10.52.68.60.5
10.62.78.60.5
10.72.78.70.5
10.82.78.70.5
10.92.88.80.5
11.02.88.80.5
11.12.88.90.6
11.22.88.90.6
11.32.99.00.6
11.42.99.10.6
11.52.99.10.6
11.62.99.20.6
11.73.09.20.6
11.83.09.30.7
11.93.09.30.7
12.03.19.40.7
12.13.19.40.7
12.23.19.50.7
12.33.19.50.7
12.43.29.60.7
12.53.29.70.8
12.63.29.70.8
12.73.39.80.8
12.83.39.80.8
12.93.39.90.8
13.03.39.90.8
13.13.410.00.8
13.23.410.00.8
13.33.410.10.9
13.43.510.10.9
13.53.510.20.9
13.63.510.20.9
13.73.510.30.9
13.83.610.40.9
13.93.610.40.9
14.03.610.51.0
14.13.610.51.0
14.23.710.61.0
14.33.710.61.0
14.43.710.71.0
14.53.810.71.0
14.63.810.81.0
14.73.810.81.1
14.83.810.91.1
14.93.910.91.1
15.03.911.01.1
15.14.011.11.1
15.24.011.21.2
15.34.111.21.2
15.44.111.31.2
15.54.211.41.3
15.64.211.51.3
15.74.311.51.4
15.84.311.61.4
15.94.411.71.4
16.04.411.81.5
16.14.511.81.5
16.24.511.91.5
16.34.612.01.6
16.44.612.11.6
16.54.712.11.6
16.64.712.21.7
16.74.812.31.7
16.84.812.41.7
16.94.912.41.8
17.04.912.51.8
17.15.012.61.9
17.25.012.71.9
17.35.112.71.9
17.45.112.82.0
17.55.212.92.0
17.65.213.02.0
17.75.313.12.1
17.85.313.12.1
17.95.413.22.1
18.05.413.32.2
18.15.513.42.2
18.25.513.42.3
18.35.613.52.3
18.45.613.62.3
18.55.713.72.4
18.65.713.72.4
18.75.813.82.4
18.85.813.92.5
18.95.914.02.5
19.05.914.02.5
19.16.014.12.6
19.26.014.22.6
19.36.114.32.6
19.46.114.32.7
19.56.214.42.7
19.66.214.52.8
19.76.314.62.8
19.86.314.62.8
19.96.414.72.9
20.06.414.82.9
20.16.514.93.0
20.26.615.03.1
20.36.715.23.1
20.46.715.33.2
20.56.815.43.3
20.66.915.53.4
20.77.015.63.4
20.87.115.73.5
20.97.215.93.6
21.07.316.03.7
21.17.316.13.8
21.27.416.23.8
21.37.516.33.9
21.47.616.54.0
21.57.716.64.1
21.67.816.74.1
21.77.916.84.2
21.87.916.94.3
21.98.017.04.4
22.08.117.24.5
22.18.217.34.5
22.28.317.44.6
22.38.417.54.7
22.48.517.64.8
22.58.617.84.9
22.68.617.94.9
22.78.718.05.0
22.88.818.15.1
22.98.918.25.2
23.09.018.35.2
23.19.118.55.3
23.29.218.65.4
23.39.218.75.5
23.49.318.85.6
23.59.418.95.6
23.69.519.05.7
23.79.619.25.8
23.89.719.35.9
23.99.819.45.9
24.09.819.56.0
24.19.919.66.1
24.210.019.86.2
24.310.119.96.3
24.410.220.06.3
24.510.320.16.4
24.610.420.26.5
24.710.420.36.6
24.810.520.56.6
24.910.620.66.7
25.010.720.76.8
25.110.820.96.9
25.211.021.07.1
25.311.121.27.2
25.411.221.47.4
25.511.421.67.5
25.611.521.77.7
25.711.621.97.8
25.811.822.18.0
25.911.922.28.1
26.012.022.48.3
26.112.222.68.4
26.212.322.78.6
26.312.422.98.7
26.412.623.18.9
26.512.723.39.0
26.612.823.49.1
26.713.023.69.3
26.813.123.89.4
26.913.223.99.6
27.013.424.19.7
27.113.524.39.9
27.213.624.410.0
27.313.824.610.2
27.413.924.810.3
27.514.025.010.5
27.614.225.110.6
27.714.325.310.8
27.814.425.510.9
27.914.625.611.1
28.014.725.811.2
28.114.926.011.5
28.215.126.311.7
28.315.326.512.0
28.415.626.812.3
28.515.827.012.6
28.616.027.312.8
28.716.227.513.1
28.816.427.713.4
28.916.628.013.6
29.016.828.213.9
29.117.028.514.2
29.217.328.714.4
29.317.529.014.7
29.417.729.215.0
29.517.929.415.3
29.618.129.715.5
29.718.329.915.8
29.818.530.216.1
29.918.730.416.3
30.019.030.716.6
30.119.230.916.9
30.219.431.117.1
30.319.631.417.4
30.419.831.617.7
30.520.031.918.0
30.620.232.118.2
30.720.432.318.5
30.820.732.618.8
30.920.932.819.0
31.021.133.119.3
31.121.333.319.6
31.221.533.619.8
31.321.733.820.1
31.421.934.020.4
31.522.134.320.7
31.622.434.520.9
31.722.634.821.2
31.822.835.021.5
31.923.035.321.7
32.023.235.522.0
32.123.635.922.6
32.223.936.323.1
32.324.336.623.7
32.424.737.024.2
32.525.037.424.8
32.625.437.825.4
32.725.838.125.9
32.826.138.526.5
32.926.538.927.0
33.026.939.327.6
33.127.239.728.2
33.227.640.028.7
33.327.940.429.3
33.428.340.829.8
33.528.741.230.4
33.629.041.531.0
33.729.441.931.5
33.829.842.332.1
33.930.142.732.6
34.030.543.133.2
34.130.943.433.8
34.231.243.834.3
34.331.644.234.9
34.432.044.635.4
34.532.344.936.0
34.632.745.336.6
34.733.145.737.1
34.833.446.137.7
34.933.846.438.2
35.034.246.838.8
35.134.547.239.4
35.234.947.639.9
35.335.248.040.5
35.435.648.341.0
35.536.048.741.6
35.636.349.142.2
35.736.749.542.7
35.837.149.843.3
35.937.450.243.8
36.037.850.644.4
36.138.551.245.6
36.239.151.846.9
36.339.852.548.1
36.440.453.149.3
36.541.153.750.6
36.641.854.351.8
36.742.454.953.0
36.843.155.554.3
36.943.756.255.5
37.044.456.856.7
37.145.157.458.0
37.245.758.059.2
37.346.458.660.4
37.447.059.261.7
37.547.759.962.9
37.648.460.564.1
37.749.061.165.4
37.849.761.766.6
37.950.362.367.8
38.051.063.069.1
38.151.763.670.3
38.252.364.271.5
38.353.064.872.7
38.453.665.474.0
38.554.366.075.2
38.655.066.776.4
38.755.667.377.7
38.856.367.978.9
38.956.968.580.1
39.057.669.181.4
39.158.369.782.6
39.258.970.483.8
39.359.671.085.1
39.460.271.686.3
39.560.972.287.5
39.661.672.888.8
39.762.273.490.0
39.862.974.191.2
39.963.574.792.5
40.064.275.393.7

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