Ispitivanje utjecaja bočne refrakcije na mjerenja horizontalnih pravaca u tunelu

Title (Dublin Core)

hrv Ispitivanje utjecaja bočne refrakcije na mjerenja horizontalnih pravaca u tunelu

eng Testing of the Effect of Lateral Refraction on the Measurements of Horizontal Directions in the Tunnel

Description (Dublin Core)

hrv U ovom radu analizirana su složena geodetska mjerenja u tunelogradnji. Izloženi su izvori pogrešaka koje se javljaju pri mjerenju horizontalnih pravaca, s posebnim osvrtom na utjecaj bočne refrakcije. Kako atmosfera nije homogeno sredstvo, vizura ne ide ravnocrtno nego po krivulji koju nije jednostavno matematički definirati, a ovisna je o udaljenosti vizure od uzročnika refrakcije te o promjeni temperature i tlaka zraka. U ovom istraživanju analizirano je više mjerenja pri različitim atmosferskim uvjetima i različitim udaljenostima vizure od tunelske stijene kao glavnog uzročnika bočne refrakcije. Na kraju su prikazani rezultati mjerenja i predstavljen je model koji zadovoljava stroge kriterije mjerenja pri izvođenju geodetskih radova u tunelogradnji.

eng This paper analyzes the complexity of tunnel surveying. Sources of errors which are shown herein are those that occur in the measurement of horizontal lines, with special emphasis on the influence of lateral refraction. Since the atmosphere is not a homogeneous medium, therefore it follows the curve which is not mathematically defined, but is dependent on the distance from the visor line of the cause of refraction and changes in temperature and air pressure. In this study, there are several processed measurements under different atmospheric conditions and a visor line distance from the tunnel wall, which is in fact, the cause of refraction. Finally, the measurement results are shown together with the model which meets the stringent criteria for performing tunnel surveying.

Creator (Dublin Core)

Redovniković, Loris

Džapo, Marko

Kapović, Zdravko

Subject (Dublin Core)

hrv bočna refrakcija; proboj tunela; temperatura

eng lateral refraction; breakthrough of the tunnel; temperature

Publisher (Dublin Core)

Croatian geodetic society

Date (Dublin Core)

2011

Type (Dublin Core)

text

info:eu-repo/semantics/article

info:eu-repo/semantics/publishedVersion

Format (Dublin Core)

application/pdf

Identifier (Dublin Core)

https://hrcak.srce.hr/77844

hrv https://hrcak.srce.hr/file/115604

Source (Dublin Core)

Geodetski list

ISSN 0016-710X (Print)

ISSN 1849-0611 (Online)

Volume 65 (88)

Issue 3

Language (Dublin Core)

hrv

Rights (Dublin Core)

info:eu-repo/semantics/openAccess

Full-text papers can be used for personal or educational purposes only. Authors' and publisher's copyrights must be acknowledged.

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