By using the model test with scale of 1∶20 and numerical simulation,we get the results that: 1) the left and right hole have the trend of press during the experiment.2) The maximum moment of the left hole is located at left and right hance and arch bottom,while the maximum moment of the right hole is located at the left hance.3) Under the partial pressure,the multiple-arch tunnel moves to the shallow side.The surrounding rock mass of the shallow and deep side appears to be in passive and active pressure.The...