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BOŠTÍK, J.
Original Title
Parallel underground structures, problem and solution
Type
conference paper
Language
English
Original Abstract
Underground openings are extremely complex structures. The complication is more in case of parallel interacting openings. The demand on stability assurance of the rock pillar zones is essential in this case. The paper shows using a numerical approach by FEM for prediction of stress in the pillar zone between two (three-lane) and among three (two-lane) road tunnel system, which are performed by the NATM. Two pillar width to tunnel diameter ratios of 0,5 and 1,0 have been chosen. Six different rock masses of Prague area viz. Šárecká, Dobrotivská, Vinická, Bohdalecká, Skalecká series and Cenomanian sandstone have been considered to simulate possible geological conditions for each geometrical arrangement of tunnels. The tunnels have been considered to be excavated simultaneously.
Key words in English
tunnel, rock pillar zone, stress, FEM
Authors
RIV year
2003
Released
7. 10. 2003
Location
Assiut - Egypt
Pages from
186
Pages to
195
Pages count
10
BibTex
@inproceedings{BUT11138, author="Jiří {Boštík}", title="Parallel underground structures, problem and solution", booktitle="First International conference of Civil Engineering Science 7-8 October 2003, Volume 1", year="2003", pages="10", address="Assiut - Egypt" }