Ground deformation detection along Beijing-Tianjin intercity railway using advanced network multi-baseline DInSAR

Recent years, the application of multi-baseline DInSAR was primarily possible in the case of slow ground movements. In this paper, the application of Beijing-Tianjin intercity railway roadbed deformation monitoring based on multi-baselines DInSAR is present. To enable this, the advanced network algorithm is adapted for pixels linking. Our study is based on 15 ALOS PALSAR images during one-year period of 2008-2009. The results of current study indicate that the cumulate subsidence along most of the roadbed is about 0-10mm, which means the roadbed is relative stable during the first year running of the intercity railway.