The application analysis of swelling grouting bolts in single shell lining tunnels
This paper researched the adaptability of swelling grouting bolts in hard rockmass,numerical simulation and field testing method were used to the single shell lining support tunnel shaft.The numerical calculation results indicated that the largest bolt axial force at the joint fissures area of tunnel left.The field monitoring results confirmed the accuracy of the numerical calculations.In class Ⅲ surrounding rock,bolt axial was the main monitoring method,displacement monitoring as a supplement.
swelling grouting boltsmechanical analysistunnelprestressaxial force
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