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Site Data Based Prediction of Shield Driving Performance in Compound Strata
(1 School of Mechanical Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043; 2 Urban Rail Transit Engineering Company limited of China Railway 15th Bureau, Luoyang 471000)
Abstract Performance prediction of shield driving plays an important role in evaluation of construction period and construction cost. Taking a construction lot of Guangzhou- Dongguan-Shenzhen intercity rail transit for example, a multivariate nonlinear regression analysis on advance rate of the EPB shield with diameter of 8.8 m in compound strata was conducted based on site data, a direct multivariate nonlinear prediction model, and a multivariate linear prediction model after linear treatment were established, the predicted and actual advance rates of the same section were compared. The results show that the error of advance rate measured by direct multivariate nonlinear prediction model is 9.035% compared with the actual advance rate, while the error of advance rate measured by multivariate linear prediction model after linear treatment is 5.987% compared with the actual advance.
Abstract：
Performance prediction of shield driving plays an important role in evaluation of construction period and construction cost. Taking a construction lot of Guangzhou- Dongguan-Shenzhen intercity rail transit for example, a multivariate nonlinear regression analysis on advance rate of the EPB shield with diameter of 8.8 m in compound strata was conducted based on site data, a direct multivariate nonlinear prediction model, and a multivariate linear prediction model after linear treatment were established, the predicted and actual advance rates of the same section were compared. The results show that the error of advance rate measured by direct multivariate nonlinear prediction model is 9.035% compared with the actual advance rate, while the error of advance rate measured by multivariate linear prediction model after linear treatment is 5.987% compared with the actual advance.
LI Jie1 ZHANG Bin1 FU Ke1 MA Chao1 GUO Jingbo1 NIU Decao2
.Site Data Based Prediction of Shield Driving Performance in Compound Strata[J] MODERN TUNNELLING TECHNOLOGY, 2019,V56(4): 97-104
2019, Vol. 56 