Estimations of the Jacking Forces of Large-Sized Rectangular Jacking Pipes Based on a Displacement Control Method

Figure 5

Cross section of the models (model 1: from 12 to 13.5, model 2: from 27 to 28.5, model 3: from 42 to 43.5, model 4: from 57 to 58.5, model 5: from 72 to 73.5, and model 1: from 87 to 88.5).