Ant Colony Algorithms of Long term Uneven Settlement Prediction in Tunnel

Abstract:

The corresponding relationship between long term uneven settlement law of Shanghai Metro shield tunnel in operation period and the idea of ant colony algorithms is found based on the measured settlement data.Then a new prediction model of long term uneven settlement in tunnel is put forward on the basis of colony algorithms.The forecasting effect of the new model is tested.A comparative study is made of predicted data with the measured data,and the idea of establishing and perfecting the new model is acquired.The results show the prediction model is directly established on real settlement data,which avoids the mistakes due to factitiousness in traditional methods.The established prediction model proves to be accurate,easy to operate and adaptable.Besides,the model can be improved in many fields,which fact is considered as a brand new way to long term uneven settlement prediction calculation of tunnel.

Key words:tunnel; long term settlement; uneven settlement; settlement prediction; ant colony algorithms