Investigation of the Precision in Geodetic Reference-Point Positioning Because of Temperature-Induced Pillar Deflections
To perform geodetic measurements of displacements of the ground and manmade constructions, stabilised reference points are needed from which control points on the object or its surroundings could be measured. Reference points are most commonly stabilised with reinforced concrete pillars; however, th...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-08-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/19/16/3489 |
| _version_ | 1818038483989561344 |
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| author | Robert Močnik Božo Koler Dejan Zupan Tomaž Ambrožič |
| author_facet | Robert Močnik Božo Koler Dejan Zupan Tomaž Ambrožič |
| author_sort | Robert Močnik |
| collection | DOAJ |
| description | To perform geodetic measurements of displacements of the ground and manmade constructions, stabilised reference points are needed from which control points on the object or its surroundings could be measured. Reference points are most commonly stabilised with reinforced concrete pillars; however, they are not always constructed in an appropriate manner. The influence of temperature variation within a pillar on the position of the fixed screw for forced centring is not negligible and should be considered when performing precise measurements. In this research paper, the displacement of a pillar was calculated as a result of the temperature changes in the pillar, and then an experiment was performed in which the pillar was heated from one side, and the horizontal displacement of the fixed screw for forced centring was measured. Both, calculations and measurements, show that at a temperature difference of 16.2 °C, the fixed screw on a 1.5 m high pillar moves by approximately 1 mm, which is a displacement that should be taken into account in precise measurements. |
| first_indexed | 2024-12-10T07:43:28Z |
| format | Article |
| id | doaj.art-82dbdb3d92514ae5a1fed5d7c3ef726b |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-12-10T07:43:28Z |
| publishDate | 2019-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-82dbdb3d92514ae5a1fed5d7c3ef726b2022-12-22T01:57:15ZengMDPI AGSensors1424-82202019-08-011916348910.3390/s19163489s19163489Investigation of the Precision in Geodetic Reference-Point Positioning Because of Temperature-Induced Pillar DeflectionsRobert Močnik0Božo Koler1Dejan Zupan2Tomaž Ambrožič3Mariborski vodovod d.d., Jadranska cesta 24, 2000 Maribor, SloveniaFaculty of Civil and Geodetic Engineering, University of Ljubljana, Jamova 2, 1000 Ljubljana, SloveniaFaculty of Civil and Geodetic Engineering, University of Ljubljana, Jamova 2, 1000 Ljubljana, SloveniaFaculty of Civil and Geodetic Engineering, University of Ljubljana, Jamova 2, 1000 Ljubljana, SloveniaTo perform geodetic measurements of displacements of the ground and manmade constructions, stabilised reference points are needed from which control points on the object or its surroundings could be measured. Reference points are most commonly stabilised with reinforced concrete pillars; however, they are not always constructed in an appropriate manner. The influence of temperature variation within a pillar on the position of the fixed screw for forced centring is not negligible and should be considered when performing precise measurements. In this research paper, the displacement of a pillar was calculated as a result of the temperature changes in the pillar, and then an experiment was performed in which the pillar was heated from one side, and the horizontal displacement of the fixed screw for forced centring was measured. Both, calculations and measurements, show that at a temperature difference of 16.2 °C, the fixed screw on a 1.5 m high pillar moves by approximately 1 mm, which is a displacement that should be taken into account in precise measurements.https://www.mdpi.com/1424-8220/19/16/3489reinforced concrete pillarbased reference pointinfluence of temperaturecalculated displacementmeasured displacementtemperature distribution |
| spellingShingle | Robert Močnik Božo Koler Dejan Zupan Tomaž Ambrožič Investigation of the Precision in Geodetic Reference-Point Positioning Because of Temperature-Induced Pillar Deflections Sensors reinforced concrete pillar based reference point influence of temperature calculated displacement measured displacement temperature distribution |
| title | Investigation of the Precision in Geodetic Reference-Point Positioning Because of Temperature-Induced Pillar Deflections |
| title_full | Investigation of the Precision in Geodetic Reference-Point Positioning Because of Temperature-Induced Pillar Deflections |
| title_fullStr | Investigation of the Precision in Geodetic Reference-Point Positioning Because of Temperature-Induced Pillar Deflections |
| title_full_unstemmed | Investigation of the Precision in Geodetic Reference-Point Positioning Because of Temperature-Induced Pillar Deflections |
| title_short | Investigation of the Precision in Geodetic Reference-Point Positioning Because of Temperature-Induced Pillar Deflections |
| title_sort | investigation of the precision in geodetic reference point positioning because of temperature induced pillar deflections |
| topic | reinforced concrete pillar based reference point influence of temperature calculated displacement measured displacement temperature distribution |
| url | https://www.mdpi.com/1424-8220/19/16/3489 |
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