Analysis methods study on Pudong seawall monitoring displacement

To use Pudong seawall monitoring information more effective and know the running state of seawall better, observed horizontal displacement and settlement data from on-site monitoring system are studied here. Displacement monitoring items are introduced; the distribution law of displacement in seawall inclinometer borehole is discussed. Then, a quantitative analysis method to evaluate unusual displacement point is presented by establishing distribution model and calculating confidence regions. The method can be used in computer program to identify unusual place in seawall body from monitoring data more quickly and accurately, instead of estimating it only from sensation. Moreover, Grey Model is used to fit and forecast settlement with the data from maximum displacement monitoring point. Instances of Pudong seawall show good results of these methods.