Abstract:For studying the effects of ground movements on pipelines and structures,prediction of ground settlement induced by tunneling is always a hot issue. A regression analysis of the field measurements of ground settlements induced by shallow metro station constructions in Beijing is conducted to acquire empirical estimations of the relevant characteristic parameters. The ground conditions include silty sand,silty clay,clayey silt,silty fine sand,medium and coarse sands,cobble and gravel,which are typical of soil compositions in Beijing area. About 69.8% of the maximum ground settlements induced by the station constructions are less than 60 mm. The accumulative frequency curve of maximum surface settlement fits well with the accumulative normal distribution curve. The parameter of settlement trough is dependent on the construction method:0.61–0.82 for drift-PBA method,and 0.40–0.65 for central drift method. The ground loss ratio is 0.39%–1.41% for drift-PBA method;and the average loss ratio is 0.93%. For central drift method,the ground loss ratio is 0.49%–1.03%,and the average is 0.69%. These results are useful for predicting the magnitude and influential range of ground settlement.