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图------圆心在O4

图------圆心在O5

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1.6数据填入EXCEL表格并计算 五种滑动面的计算数据汇总

圆弧法边坡稳定性分析表-O1 分段 1 2 3 4 5 6 7 8 合计 R= Xa= Xb= Xi 26.75 22.07 17.125 13.013 9.8748 4.1316 36.582 3.1353 29.635 sinAi 0.731231 0.603302 0.468132 0.35571 0.269936 0.112941 cosAi Si Gi=Si*r Ni=GicosAi Ti=GisinAi 115.892 229.339 305.498 277.554 147.656 9.28375 79.0533748 182.900962 269.955499 259.400448 142.174993 9.22434997 L 0.68213 6.6224 0.79751 13.1051 0.88366 17.457 0.9346 15.8602 0.96288 8.4375 0.9936 0.5305 84.743847 138.3608673 143.0131154 98.7286828 31.406 39.85774254 1.048514064 Nf?cLk??T?Nitan??cL?Ti942.709627 505.7527691 K= 1.99506211

圆弧法边坡稳定性分析表-O2 分段 1 2 3 4 5 6 7 8 合计 R= Xa= Xb=

Xi 26.069 20.737 15.277 10.25 5.4122 1.1486 32.938 -1.842 27.658 sinAi 0.791442 0.629581 0.4638 0.311187 0.164314 0.034871 cosAi Si Gi=Si*r Ni=GicosAi Ti=GisinAi 282.812 446.096 448.662 459.547 316.069 103.089 172.867321 346.587551 397.487072 436.729458 311.773249 103.026302 L Nf?cL?Nitan??cLk??T?Ti0.61124 16.1607 0.77693 25.4912 0.88594 25.6378 0.95035 26.2598 0.98641 18.0611 0.99939 5.8908 223.8295293 280.8535396 208.0893293 143.0047778 34.673 51.93468946 3.594865077 1768.47095 911.3067305 K= 1.54501031 7

圆弧法边坡稳定性分析表-O3 分段 1 2 3 4 5 6 7 8 合计 R= Xa= Xb= Xi 23.869 19.166 14.363 9.1263 4.635 -3.304 -4.202 30.578 -5.86 26.64 sinAi 0.780602 0.626783 0.469714 0.298458 0.151579 -0.10806 -0.1374 cosAi Si Gi=Si*r Ni=GicosAi Ti=GisinAi 351.39 680.629 675.392 625.644 521.908 295.547 40.369 219.62848 530.342059 596.24831 597.129171 515.877216 293.816367 39.9861159 L 0.62503 20.0794 0.77919 38.8931 0.88282 38.5938 0.95442 35.7511 0.98845 29.8233 0.99414 16.8884 0.99052 2.3068 274.2952996 426.6069338 317.2406523 186.7283594 38.238 79.11003333 -31.9369993 -5.546773633 Nf?cL?Nitan??cLk??T?Ti2793.02772 1246.497506 K= 1.51882406

圆弧法边坡稳定性分析表-O4 分段 1 2 3 4 5 6 7 8 合计 R= Xa= Xb= Xi 23.059 19.387 14.001 8.805 4.1635 -3.294 -5.64 -8.936 29.089 -9.269 26.232 sinAi 0.792722 0.666478 0.481314 0.302693 0.14313 -0.11322 -0.19387 -0.30718 cosAi Si Gi=Si*r Ni=GicosAi Ti=GisinAi 390.758 862.955 934.969 829.798 747.164 527.093 219.489 1.9705 238.199448 643.354395 819.545349 790.87019 739.471348 523.703649 215.323994 1.87522758 L 0.60958 22.329 0.74553 49.3117 0.87655 53.4268 0.95309 47.417 0.9897 42.6951 0.99357 30.1196 0.98103 12.5422 0.95165 0.1126 309.7619193 575.140003 450.0138359 251.1737119 42.124 106.9417666 -59.67846139 -42.5532538 -0.605303047 Nf?cL?Nitan??cLk??T?Ti3972.3436 1590.194219 K= 1.53906982

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圆弧法边坡稳定性分析表-O5 分段 1 2 3 4 5 6 7 8 合计 R= Xa= Xb= Xi 23.072 18.566 13.738 8.7912 3.7765 -1.122 -5.961 -6.182 28.232 -12.26 26.235 sinAi 0.817199 0.657624 0.486586 0.311387 0.133765 -0.03975 -0.21114 -0.21897 cosAi Si Gi=Si*r Ni=GicosAi Ti=GisinAi 439.306 963.426 1202.66 1111.95 955.444 789.551 480.202 107.154 253.196238 725.793355 1050.68089 1056.67075 946.857533 788.926914 469.375592 104.553828 5396.0551 K= L 0.57636 25.1032 0.75335 55.0529 0.87363 68.7233 0.95028 63.5402 0.99101 54.5968 0.99921 45.1172 0.97745 27.4401 0.97573 6.1231 359.0005943 633.5717651 585.1968249 346.2477724 46.352 127.8047302 -31.38638895 -101.3916866 -23.46338156 1895.58023 1.63917739 Nf?cL?Nitan??cLk??T?Ti

3.计算结果分析与结论 3.1计算结果分析

稳定系数K与滑动面位置变化示意图2.200002.000001.80000K值1.600001.400001.200001.00000036距左边缘距离912稳定系数K与滑动面位置变化示意图。

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重点说明：稳定系数在滑动面在路基最左端时最大,然后逐渐减小,当滑动面在路基中间时达到最小,为1.51,然后当滑动面在路基上的点继续向右移动时,稳定系数又逐渐增大，到达最右端时为1.64。 3.2结论

1)由于Kmin=1.51,大于规范规定的1.20~1.25,故边坡稳定。 2)不满足要求,如何处理: 1.减小边坡坡度

2.换添路基土 ,选择粘性系数较大的土 3.加固边坡

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