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VNUHCM Journal of

Science and Technology Development

An official journal of Viet Nam National University Ho Chi Minh City, Viet Nam since 1997

ISSN: 1859-0128
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ESTIMATION OF BENCHMARK'S STABILITY BY ADJUSTMENT OF FREE GEODETIC ELEVATION BASE NETWORK

Loc Xuan Dao 1, *
Hung Manh Chu 2

  1. University of Technology, VNU - HCM
  2. University of Technology, VNU-HCM
Correspondence to: Loc Xuan Dao, University of Technology, VNU - HCM. Email: pvphuc@hcmuns.edu.vn.
Volume & Issue: Vol. 12 No. 18 (2009) | Page No.: 69-75 | DOI: 10.32508/stdj.v12i18.2385
Published: 2009-12-15

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Copyright © 2009 by the author(s).

Copyright The Author(s) 2023. This article is published with open access by Vietnam National University, Ho Chi Minh city, Vietnam. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0) which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited. 

Abstract

The paper presents a procedure to estimate benchmark's stability by adjustment of free geodetic elevation base network. The changes of adjusted heigh by software " CBSCI" for free networks consisted 3,4,5 benchmarks are 0.1-0.2 mm when to compare this method with a method one benchmark is unchanged in height and method the mean of heigh for benchmark group is unchanged. So, we can use this method for estimation of benchmark's stability when to measure settlement for engineering constructions.

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