INSTRUMENTATION FOR MONITORING THE DYNAMIC AND STATIC BEHAVIOUR OF ROCK BOLTS IN TUNNELS.

Keywords: UK, PENMAENBACH, PEN Y CLIP, NORTH WALES, TUNNELS, ROCKS, BOLTS, ROCKBOLTS, ROCKBOLTING, BEHAVIOUR, DYNAMIC, STATIC, MONITORING, INSTRUMENTATION, INSTRUMENTS, RESEARCH, RESPONSES, TUNNELLING, INSTANTANEOUS, LONG TERM, BLASTING, CONSTRUCTION, SITES, TRANSDUCERS, SIGNALS, CONDITIONING, RECORDING, EQUIPMENT, A55, ROADS, INSTALLATION, PROTECTION, SYSTEMS, LOADS, CELLS, VIBRATIONS, AMPLIFIERS, DATA, ACQUISITION, ABERDEEN UNIVERSITY, BRADFORD UNIVERSITY