Abstract: By utilizing the Shanghai Mid-ring Line-Beihong Road underground intersection traffic tunneling project which was constructed by using the pipe-roofing and large section box-culvert jacking trenchless excavation technology, as an engineering background, the authors give a systematic study on the numerical simulation of ground movement in the whole construction process of above-mentioned project by using the ANSYS&FLAC 3-D computer programming respectively. Secondly, by adopting the elastic foundation beam method, lab.-model experiment, and actual test data analogical techniques in situ separately, the authors give a comprehensive study on characteristics of the ground movement variations developed in construction of the large section box jacking with pipe-roofing trenchless techniques. Finally, as adopting the intelligent soft science method, the authors make a so-called “multi-stepped rolling” prediction study by using artificial neural networks (ANN) on surface ground settlement increasing with time around the project. The results have been provided to the design and construction companies for a valuable reference.

Key words: pipe-roofing (screen), box-culvert, jacking construction, soil deformation during construction, numerical analysis, intelligent prediction