Application of InSAR Monitoring Seawall Settlement
The seawall structure is often filled with earth and rock,which is easy to produce non-uniform settlement.InSAR monitoring has the characteristics of large range and high frequency,which can obtain the deformation information of seawall with linear distribution,long range and frequent operation activities.Seawalls within the management scope of Section 4 of Shenzhen Bay were selected as the research object,high-resolution TerraSAR-X images were used as data sources,and the long-period temporal deformation information of seawalls was obtained based on interferometry technology of fusion of permanent scatterers and uniformly distributed scatterers,and accuracy verification was carried out with artificial leveling.The results showed that:The seawall deformation monitoring technology based on time-series InSAR can capture linear,large-scale seawall and surrounding settlement deformation information with reliable accuracy,which greatly promotes the establishment of water engineering information monitoring model.
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