PERBANDINGAN AKURASI DAN PRESISI ANTARA METODE SURVEY STATIK DAN RTK PADA PENGUKURAN PENURUNAN TUBUH BENDUNGAN PONRE PONRE

Abstract

The monitoring of the settlement of the Ponre-Ponre dam aims to determine the condition of the dam's body still
in the condition as planned or not. To find out the settlement of the weir body requires tools and methods with high
accuracy and precision. This study aims to compare the accuracy and precision of the two GNSS (Global Navigation
Satellite System) survey methods and use a survey method with higher accuracy and precision values. The benefit of this
research is to complete the data series of dam settlement with the latest measurement data. This study compared the
results of the static survey method measurements with the RTK survey of the parameters of the value of accuracy and
precision values. The method with a smaller value of accuracy and precision is used to measure the decrease in the body
of the dam. The results of this study indicate that the static survey method gives an accuracy value and a smaller order
precision value than the RTK survey method. Decreasing body dam in the last four years (2015 - 2018) has decreased by
4,483 cm every year.