Network-Aided Reduction of Slope Distances in Small-Scale Geodetic Control Networks
Publication: Journal of Surveying Engineering
Volume 147, Issue 4
Abstract
Most of the human-made infrastructures (e.g., dams) need very precise geodetic networks and constant monitoring to detect risks of failure and to plan civil engineering maintenance works. The combination of different measurements helps in determining displacements with high precision; therefore, the risk of damages is reduced. In this paper, we present a new approach, which considers a special geodetic observation strategy as a method to significantly reduce the volume of operations of a precise geodetic network and changes the designing concept of such networks. Decrease in data collection time and cost while keeping or increasing the quality of control networks has been one of the most important goals of any network designer. This paper proposes a method exploiting network properties to convert slope distances to the horizontal ones to be used in the classic terrestrial geodetic two-dimensional (2D) networks. We have evaluated the proposed method in different dam geodetic control networks in Iran. The network adjustment results show the acceptable performance of the presented method compared with the methods that are currently in use.
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Data Availability Statement
The data that support the findings of this study are available from the corresponding author on request.
Acknowledgments
The authors are grateful for the free use of geodetic control network data provided by the Regional Water Company of Semnan, Iran, for this study. We also appreciate the constructive comments of the esteemed reviewers, which improved the quality of the manuscript significantly. At last, we would like to thank Dr. Mahmoud Mohammad Karim, our great teacher, whose lectures initiated the main subject of this paper in our mind.
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Published In
Journal of Surveying Engineering
Volume 147 • Issue 4 • November 2021
Copyright
© 2021 American Society of Civil Engineers.
History
Received: Jun 17, 2020
Accepted: Jun 13, 2021
Published online: Sep 9, 2021
Published in print: Nov 1, 2021
Discussion open until: Feb 9, 2022
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