Design of shotcrete rock reinforcement in hard rock according to Eurocode

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Date
2011-06-06
Major/Subject
Mcode
Degree programme
Language
en
Pages
21
Series
Seminar on Geoengineering
Abstract
Shotcrete was invented in the 1900’s and first used in rock spaces in the 1930’s. The design of shotcrete is currently (2011) mainly based on empirical rules. This paper explores the feasibility of designing shotcrete structures according to the methods allowed in the Eurocodes. The shotcrete material parameters are derived according to the Eurocode and presented for shotcrete grades up to C50/60. The EFNARC panel test (EN 14488-5) and ASTM round panel test (C1550) are used in conjunction with the Yield Line Theory (YLT) to produce the cracking limit of the bending resistance. The shotcrete failure process and failure modes are described. Linear elastic theory is used to calculate the crack initiation capacity. The means on how to calculate the shotcrete capacity for the most common failure modes are presented. Finally, notes on how to apply these results into practical design work are given.
Description
Opponent: Michael Staudt, Supervisor: prof. Mikael Rinne
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Citation
Uotinen , L 2011 , Design of shotcrete rock reinforcement in hard rock according to Eurocode . in Seminar on Geoengineering . Seminar on Geoengineering , Espoo , Finland , 29/04/2010 .