Grey prediction analysis of cutoff wall affected by construction effect

The long-term stability analysis of cutoff wall affected by construction effect is crucial. longterm the Daning Reservoir mainly combined action highway vehicle load, extreme load and water under different storage loads. In this paper, prediction model method grey theory are used to predict horizontal displacement at top wall, settlement top, maximum principal stress reinforced concrete plastic based on with each drainage cycle as time series point actual situation project. predicted evaluated. results show that monitoring 2 – section gradually tend be stable during whole cycle. limit compressive 4.320 MPa, 1.758 MPa. Judging from material strength, within design strength material, failure does not occur, indicating anti-seepage system rigid adopted safe in later normal operation period.