Search

Because of the particularity of the environment in the tunnel, the rational tunnel illumination system should be developed, so as to optimize the tunnel environment. Considering the high cost of traditional tunnel illumination system with high-pressure sodium (HPS) lamps as well as the effect of a single light source on tunnel entrance, the energy-saving illumination system with HPS lamps and LEDs combined illumination in road tunnel, which could make full use of these two kinds of lamps, was proposed. The wireless intelligent control system based on HPS lamps and LEDs combined illumination and microcontrol unit (MCU) Si1000 wireless communication technology was designed. And the remote monitoring, wireless communication, and PWM dimming module of this system were designed emphatically. Intensity detector and vehicle flow detector can be configured in wireless intelligent control system, which gather the information to the master control unit, and then the information is sent to the monitoring center through the Ethernet. The control strategies are got by the monitoring center according to the calculated results, and the control unit wirelessly sends parameters to lamps, which adjust the luminance of each segment of the tunnel and realize the wireless intelligent control of combined illumination in road tunnel. [ABSTRACT FROM AUTHOR]

In response to the frequent occurrence of rock blasting during traffic tunnel excavation under high ground stress, this paper presents a detailed introduction to microseismic monitoring technology. Firstly, the principle and role of microseismic monitoring are explained, including the characteristics and main processes of microseismic monitoring technology. Secondly, the characteristics of microseismic monitoring technology are introduced, and the different characteristics encountered in the application of microseismic monitoring technology to traffic tunnels are discussed. The introduction of the microseismic monitoring process includes six parts: microseismic signal acquisition, recognition and classification, noise reduction, arrival detection, localization, and microseismic-based forecast and warning. Finally, an outlook on the development of microseismic monitoring in traffic tunnels is given. [ABSTRACT FROM AUTHOR]