Abstract:  When multiple transportation vehicles traveling in ultra-long tunnel bored by tunnel boring machine(TBM), problems such as high driving risk, low transportation efficiency, and poor timeliness of scheduling management exist. Thus, four common multi-vehicle driving road modes in TBM tunnel construction, i.e., single-lane and dual-lane trackless transportation, single-line and four-track-three-lane railed transportation, are analyzed. The logic rules of intelligent scheduling algorithm are designed for different transportation and road modes, forming real-time positioning and trajectory prediction methods for vehicles in tunnels based on Bluetooth signal strength. Moreover, the box-type vehicle-mounted terminals with functions of real-time positioning, real-time voice calls, and online video are developed, thus realizing an intelligent dispatching management system for long-distance tunnel construction vehicles with universality, generality, parameterization, and modularization. The system has been applied in a long-distance TBM tunnel of a water supply project in Northern Xinjiang, realizing intelligent anti-collision and voice real-time intercom scheduling of multi-vehicle, and improving the efficiency of the project′s long-distance material transportation and multi-vehicle driving safety.

Key words: ultra-long tunnel, tunnel construction, tunnel boring machine, material transportation, transportation scheduling, crashworthiness, Bluetooth localization