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  1. JBSTR

    PCC Tunnel Lining Design for a Hydropower Project

    I am desinging a PCC tunnel lining of dia 6.2m, modified horseshoe (non circular tunnel) for external pressure (218kN/sqm) and Internal pressure (327 kN/Sqm). Can anybody suggest how to calculate crack width, crack spacing and number of cracks due to imposed load. Stress type 1. Direct tension...

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