邊坡課程設(shè)計(jì)

1、 邊坡穩(wěn)定性驗(yàn)算1.資料：某浸水路堤h1=10m-15m，堤頂寬度b=10-12m，設(shè)計(jì)最大水深為7.0m,，m=1.5。試驗(yàn)得知：土的重度，干重度，孔隙率，換算土柱高。2.設(shè)計(jì)內(nèi)容（1）試用條分法計(jì)算其邊坡穩(wěn)定性。（2）利用上述資料，如果此路堤為非浸水路堤，試計(jì)算其邊坡穩(wěn)定性。 浸水邊坡穩(wěn)定性計(jì)算條分法計(jì)算邊坡穩(wěn)定性 ：1最危險(xiǎn)滑弧圓心位置的確定輔助線的作圖角值表邊坡坡度邊坡角1:0.560°00'29°40°1:145°00'28°37°1:1.530°40'26°35°1:2

2、26°34'25°35°1:318°26'25°35°1:414°03'25°36°1:511°19'25°37° 則取=26°，=35°。(1) 按1:1比例作圖，用4.5h法作圓心輔助線。(2) 取第一個(gè)圓心q1劃分九個(gè)土條；量得r1=18.53m，d1=14.12m，干土條=3.39m ，取=0.08。如圖所示：（3）分別量取各土條重心與豎局的間距a（左正右負(fù)），計(jì)算；量面積（干與濕分開），分別計(jì)算重力q。其中濕重度：

3、（26-9.80）（1-0.31）=11.18kn/。 （4）量滑動(dòng)圓弧兩端點(diǎn)對(duì)豎局的間距，計(jì)算圓心角和全弧長(zhǎng)l，浸水圓弧長(zhǎng)=l-= 23.1m。（5）分別計(jì)算各土條圓弧面上的法向力與切向力（區(qū)分正負(fù)）如下表：土條x（m）asinacosafi()qini=qi*cosati=qi*sinalf1f2q1q2ni1ni2ti1ti216.5519.85 0.34 0.94 2.60 049.40.00 46.46446.4616.8 16.783.3924.2513.03 0.23 0.97 7.74 3.77147.0642.15 184.34184.342.7 42.6523.131.37

4、4.23 0.07 1.00 8.72 11.7165.68130.36 295.23295.221.8 21.8543.9712.18 0.21 0.98 4.94 12.393.86137.63 226.27226.348.9 48.8556.419.42 0.33 0.94 1.81 15.434.39172.17 194.82194.868.7 68.6668.7626.17 0.44 0.90 0.00 17.20192.30 172.59172.684.8 84.8713.7339.30 0.63 0.77 0.00 14.10157.64 121.9912299.8 99.848

5、15.1142.67 0.68 0.74 0.00 6.92077.37 56.88856.8952.4 52.43918.8751.24 0.78 0.63 0.00 3.47038.79 24.28824.2930.3 30.25合計(jì)25.81 84.8490.39948.40 1322.91323466.1 466.1(6)計(jì)算動(dòng)水壓力0.089.8*84.8=66.51kn. (7)浸水邊坡穩(wěn)定系數(shù) 帶入數(shù)據(jù)得: k=1.49>1.25第二滑動(dòng)面計(jì)算結(jié)果如下表所示：土條x（m）asinacosafi()qini=qi*cosati=qi*sinalf1f2q1q2ni1ni2ti

6、1ti2115.5942.20 0.67 0.74 2.94 055.860.00 41.38441.3837.5 37.523.6212.9936.01 0.59 0.81 11.10 6.49210.972.56 229.3229.3166.6 166.620.9310.2829.14 0.49 0.87 4.95 9.1994.05102.74 171.89171.995.8 95.8247.9322.85 0.39 0.92 1.81 12.734.39142.32 162.85162.868.6 68.6157.0420.39 0.35 0.94 0.00 9.690108.33 1

7、01.55101.537.7 37.7564.4613.08 0.23 0.97 0.00 6.77075.69 73.72573.7317.1 17.1372.667.84 0.14 0.99 0.00 10.20113.59 112.53112.515.5 15.58-0.391.15 0.02 1.00 0.00 6.23069.65 69.63769.641.4 1.4029-1.725.08 0.09 1.00 0.00 3.62040.47 40.31340.313.6 3.584合計(jì)20.80 64.9395.2725.36 1003.21003443.9 443.9計(jì)算動(dòng)水壓力

8、0.089.8*64.9= 50.86kn. 浸水邊坡穩(wěn)定系數(shù) 帶入數(shù)據(jù)得k=1.24<1.25 所以邊坡在浸水狀態(tài)下不穩(wěn)定非浸水邊坡穩(wěn)定性計(jì)算第一滑動(dòng)面計(jì)算表格：土條號(hào)xiaisinaicosaifiqini=qi*cosati=qi*sinal16.5519.85 0.34 0.94 2.60 49.446.5 16.8 26.524.2513.03 0.23 0.97 11.51 218.69213.1 49.3 31.374.23 0.07 1.00 20.38 387.22386.2 28.6 43.9712.18 0.21 0.98 17.25 327.75320.4 69.

9、2 56.419.42 0.33 0.94 17.21 326.99308.4 108.7 68.7626.17 0.44 0.90 17.20 326.8293.3 144.1 713.739.30 0.63 0.77 14.10 267.9207.3 169.7 815.142.67 0.68 0.74 6.92 131.4896.7 89.1 918.951.24 0.78 0.63 3.47 65.9341.3 51.4 合計(jì)110.64 2102.21871.8 675.4 由式：第二滑動(dòng)面計(jì)算表格如下：土條號(hào)xiaisinaicosaifiqini=qi*cosati=qi*sin

10、al115.642.20 0.67 0.74 2.94 55.8641.4 37.5 24.521336.01 0.59 0.81 17.59 334.21270.4 196.5 310.329.14 0.49 0.87 14.14 268.66234.7 130.8 47.9322.85 0.39 0.92 14.54 276.26254.6 107.3 56.0417.59 0.30 0.95 9.69 184.11175.5 55.6 64.4613.08 0.23 0.97 6.77 128.63125.3 29.1 72.667.84 0.14 0.99 10.16 193.0419

11、1.2 26.3 80.391.15 0.02 1.00 6.23 118.37118.3 2.4 91.725.08 0.09 1.00 3.62 68.7868.5 6.1 合計(jì)85.68 1627.921479.9 591.6 由式：第三滑動(dòng)面計(jì)算表格如下：土條號(hào)xiaisinaicosaifiqini=qi*cosati=qi*sinal116.0951.67 0.78 0.62 4.86 92.3457.3 72.4 22.7214.2443.97 0.69 0.72 6.13 116.4783.8 80.9 312.4537.37 0.61 0.79 11.64 221.16175

12、.8 134.2 410.3830.40 0.51 0.86 9.83 186.77161.1 94.5 58.2123.60 0.40 0.92 9.58 182.02166.8 72.9 66.6518.92 0.32 0.95 6.13 116.47110.2 37.8 75.2314.77 0.25 0.97 5.62 106.78103.3 27.2 83.259.12 0.16 0.99 7.28 138.32136.6 21.9 90.591.65 0.03 1.00 3.75 71.2571.2 2.0 合計(jì)64.82 1231.58994.7 541.8 由式：第四滑動(dòng)面計(jì)算

13、表格如下：土條號(hào)xiaisinaicosaifiqini=qi*cosati=qi*sinal117.4152.96 0.80 0.60 1.49 28.3117.1 22.6 21.4216.1947.93 0.74 0.67 4.03 76.5751.3 56.8 314.4141.35 0.66 0.75 9.09 172.71129.6 114.1 412.3634.52 0.57 0.82 6.28 119.3298.3 67.6 510.4928.75 0.48 0.88 8.36 158.84139.3 76.4 68.2822.31 0.38 0.93 8.59 163.211

14、51.0 62.0 76.3416.90 0.29 0.96 4.21 79.9976.5 23.3 84.8512.85 0.22 0.97 3.65 69.3567.6 15.4 92.787.32 0.13 0.99 3.70 70.369.7 9.0 合計(jì)49.40 938.6730.7 447.2 由式：第五滑動(dòng)面計(jì)算表格如下：土條號(hào)xiaisinaicosaifiqini=qi*cosati=qi*sinal117.5350.07 0.77 0.64 2.83 53.7734.5 41.2 20.5215.7343.48 0.69 0.73 6.46 122.7489.1 84.5 313.9237.51 0.61 0.79 5.24 99.5679.0 60.6 412.4533.00 0.54 0.84 5.33 101.2784.9 55.2 510.8528.34 0.47 0.8