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DESIGN OF FIBRE REINFORCED SHOTCRETE LININGS WITH MACRO-SYNTHETIC FIBRES (2009)

Fibre Reinforced Shotcrete (FRS) reinforced with macro-synthetic fibres has now been used to stabilize ground in underground mines and tunnels, and for slope stabilization, for over 10 years. Experience has demonstrated that macro-synthetic bres are capable of exhibiting very high levels of performance and are a highly e ective form of reinforcement for both temporary and permanent ground support. Engineering data also exists showing that macroynthetic bres excel with regard to corrosion resistance and embrittlement in shotcrete, and are very e ffective in ground subject to high deformation. Despite this, the design of FRS linings using this type of reinforcement lags behind that of linings incorporating alternative forms of reinforcement. There is a lack of appreciation within the engineering construction community that methods of design exist for this material and that these have been proven satisfactory. This paper will attempt to summarize generic approaches to the design of temporary and permanent ground support based on macro-synthetic FRS.

Reference:
2009 ECI Conference on Shotcrete for Underground Support XI
Organization:
Technologies in Structural Engineering P-L
Australia
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