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ALGORITHM FOR CALCULATING THE TUNNEL PROFILE AREAS

D. Barkovic, M. Zrinjski, L. Redovnikovic

First published: 2007DOI pendingView metrics

Abstract

Building a tunnel is a very expensive construction task, especially when cutting a tunnel in inconvenient geological conditions. The tunnel building is made drastically more expensive by badly executed works on the cutting itself, i.e. the excavation, and it happens when the areas of excavation cross-sections differ from the areas of designed profiles. It is therefore very important to monitor, apart from the direction of tunnel cutting in terms of position and height, also the areas of cross sections of the excavated tunnel. The monitoring is made by means of measuring the profile elements at individual station, and they are used to calculate the areas that are compared with the designed profiles. This paper describes the procedure of measuring the elements of the excavated tunnel cross-section and describes the algorithm for calculating the areas of excavated and designed profiles. Out of all calculated areas of measured and designed profiles, the volume of over-profile and under-profile for the whole length of a tunnel are calculated. The example of the measured and designed profiles of the tunnel “Mala kapela” is presented graphically.

Publication details

Title
ALGORITHM FOR CALCULATING THE TUNNEL PROFILE AREAS
Authors
D. Barkovic, M. Zrinjski, L. Redovnikovic
Proceedings
7th International Scientific Conference - SGEM2007
Publisher
SGEM Scientific GeoConference
Year
2007
Pages
Not available yet
SWS Citekey
Barkovic200764
ISSN
1314-2704
ISBN
954-918181-2
Language
en
Publication type
Conference Paper
Keywords
Tunnel buildingarea calculationcross sectionover-profileunderprofile
References5

  1. : Barković, Đ. (1999): Poluautomatsko određivanje profila tunela pomoću ručnog laserskog daljinomjera Leica DISTO. Magistarski rad, Geodetski fakultet Sveučilišta u Zagrebu, Zagreb. De Berg, M., van Kreveld, M., Overmars, M., Schwarzkopf, O. (2000): Computational

  2. Geometry, Algorithms and Applications, Springer Verlag, Berlin.

  3. Hunstein, W., Block, K. (1971): Die Zentralpunktkoordinaten und das Auswahlprogramm "POLYP", Nachrichten aus dem offentlichen Vermessungsdienst Nordrhein-Westfalen, 4, 350-362.

  4. Lapaine, M., Frančula, N. (2001): Točka u poligonu, Geodetski list, 3, 207-222.

  5. Preparata, F. P., Shamos, M. I. (1985): Computational Geometry, Springer Verlag, New York. Solarić, N., Solarić, M., Junašević, M., Barković, Đ. (1995): Semi - Automatic Determination of the Cross-Section in the Tunnels by means of the Hand- Held Laser Meter "LEICA-DISTO". Proceedings the 1st Inter. Symp. of Laser Technique in Geodesy and Mine Survey. Ljubljana, 53-60.

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