PREDICTION OF RESOLUTION AND COMPOSITION OF MEASURED DISPLACEMENT DURING SLOPE EXCAVATION
边坡开挖期实测位移的分解与合成预测

The previous equilibrium state of the slope is upset because of excavation. Monitoring and analyzing displacement is one of the most important ways to ensure safety of the slope. Stage excavations bring different displacement regulations in the excavation and the non-excavation stage. To forecast the displacement values during stage excavation,a method based on survey displacement data and mathematical monitoring models is put forward in this paper to separate the displacement into two parts:creep displacement and instantaneous displacement by excavation. Both monitoring models are established. Then the displacement in next excavation stage can be forecasted by them in this way with the consideration of creep and excavation. Detailed approach and example are given,and can be used in actual stage excavation to forecast the displacement.