ABSTRACT
In order to study the influence caused by the subway vibration loading on the saturated silty clay around the tunnel, the field test and monitoring are conducted in this research. The site is selected between Jingansi Station and Jiangsu Road Station. The dynamic monitoring system is adopted for field monitoring and its
sampling frequency can reach 200 Hz and its precision is 0.1 kPa. It can fully reflect the soil response around the tunnel due to the subway vibration loading. The dynamic monitoring system consists of a resistance sensor, a dynamic strain amplifier, a data selector and a computer. The system can record all the sampling data collected by the computer in real time.
