深基坑开挖致高铁桥墩位移的SVM预测方法

宋旭明,李小龙,唐冕,王天良,程丽娟

SVM prediction method for displacement of high-speed railway piers caused by deep foundation pit excavation

Xuming SONG,Xiaolong LI,Mian TANG,Tianliang WANG,Lijuan CHENG

表 5 预测模型回归评价指标及最大相对误差

Tab.5 Regression evaluation index and maximum error of prediction model

组号 Y Z R2 RMSE/mm emax/% R2 RMSE/mm emax/% 1 0.8846 0.1471 16.07 0.7917 0.0280 9.27 2 0.9828 0.0568 6.72 0.8295 0.0253 7.98 3 0.9928 0.0368 3.20 0.9209 0.0173 5.48 4 0.9959 0.0279 2.23 0.9338 0.0158 4.93 5 0.9954 0.0294 2.47 0.9345 0.0157 5.06 6 0.9869 0.0495 4.43 0.9433 0.0146 5.77