The Leveling Network of King Mongkut's University of Technology Thonburi

Abstract

This research is to study a Leveling Network of King Mongkut's University of Technology Thonburito find the elevations of benchmarks by three-wire leveling with double run type. All benchmarks arelocated all over the areas of two campuses i.e., King Mongkut's University of Technology Thonburi atTungkru and Bang Kuntien. The leveling is connected to the benchmark 533 of the Royal Thai SurveyDepartment (RTSD) at Nalaung School. The data of all twelve benchmarks are processed by LeastSquares adjustment with condition equation.

The results show that Leveling Network of 6 loops have errors within 5 mm per loop. Thedifferences of elevations adjusted by Dell's method and by Least Square Method with condition equationare within 1-2 mm. Using use three-wire leveling by Double run type and Third order equipments, theresults are accurate enough to be a reference point for future leveling as well as for updating contourmaps in the campuses and surrounding areas.