Abstract:

On basis of the features of the rapid construction and longdistance delivery of the diversion tunnel of the Water Diversion Channel Project from Datong River to Huang River in Qinghai province, for which doubleshielded TBMs are used, this paper proposes the longdistance centralized automatic dispatch control of track delivery trains inside the tunnel via centralized dispatch control system. It is determined that for superlong tunnels, singletrack transportation system will be adopted and fixed passing stations will be installed at certain intervals in accordance with the transport volume required by the planned advance rate and the capacity of the transportation system. The paper presents the equipment composition, control theory, station interlock control and interval blocking of the dispatch control system for the transportation trains inside superlong tunnels. The paper proposes two control modes, i.e., train entering control mode and mode of interval blocking control of arriving and departing trains. The paper also proposes the field bus distribution control system consisting of optical cable transmission, computer interlock and PLC control.

Key words: superlong tunnel, track transportation system, train dispatch, station interlock, interval block, control system, TV monitoring