Based on engineering practice of south anchor of Runyang Yangtze Bridge

the south anchor applies new technology of frozen row-piles method. A new method of data processing based on time series improvement method of wavelet technology is put forward. It can combine the multi-step forecasting function of time series analaysis and the refined data processing function of wavelet. The result indicates that the forecast accuracy of time series dynamic forecasting model has been improved greatly based on wavelet improving time series analysis. It affords reliable guarantee for construction of deep foundation pit and reliable basis for information construction. It can provide much experience for deep foundation pit to which the frozen row-piles method is applied.