In-situ Experimental Analysis of Acceleration Response of Mountain Tunnel Lining to Rubblization-Induced Vibrations

摘要: Resonant rubblization technology is often utilized to rehabilitate deteriorated concrete pavements. Vibrations induced by a resonant breaker would produce detrimental effects on lining structures in tunnel during construction. The in-situ experiments were carried out Yangjiao Mountain Tunnel Zhejiang Province, China. First, the characteristics of rubblization-induced vibration are analyzed time and frequency domains. Then different testing points pavement breaking positions dynamic response several bands taken into consideration investigate propagation rules. Later, amplitudes acceleration, acceleration level (Val) velocity examined cross section presented evaluate structure procedure rubblization. results show that peak (3.52 g) appears arch foot while maximum Val (132.6 dB) (17.2 mm/s) side. data can be useful for design safety assessment construction mountain tunnel.