The conventional track-bound transportation system used in long-distance
TBM tunneling has problems such as poor communication, poor dispatching and
management, poor resource supply, and high safety risks. Intelligent track-bound
transportation system for long-distance TBM tunneling
is developed on basis of the technologies for the environment perception and
positioning, the technologies for high-speed wireless
mesh network establishing and data transmission in long tunnels, and
technologies for UWB-base-station-based two-dimensional high-precision positioning in tunnels. Conclusions drawn are as follows:
(1) With UWB and WiFi wireless base stations, a gigabit industrial ring network
and a high-speed wireless signal coverage with at least
500 m coverage radius are achieved in the tunnel; (2) The positioning sub-system achieves real-time UWB-based precise positioning of the transporting trains, the equipment
and the persons in the tunnel, with a static positioning accuracy of less than
0.3 m; (3) The 3D high-precision LiDAR obstacle
recognition sub-system is able to identify and provide
warning of the obstacles ahead of the transporting trains, with a recognition
range of 200 m and a recognition accuracy of 2 cm; (4) One shunting operator is
saved for each transporting train, the comprehensive transportation efficiency
in TBM tunneling is increased by more than 20%, and the monthly transportation
cost is reduced by about CNY 600 000; (5) With IoT technology, the intelligent
track-bound transportation system achieves real-time positioning of the persons and the equipment, live transmission
of the audio and video information, automatic control of the switches/turnout,
automatic avoidance of the obstacles, intelligent planning of the
transportation and collaboration of dispatching and commanding, which enables
that the information on the formation and operation of the transporting trains
is available to all persons related, avoids transportation accidents, and
significantly improves the transportation efficiency.
LIN Chungang
,
CHEN Yongliang
,
CUI Zhibin
,
LIU Yongsheng
,
CHEN Qiao
,
SHANG Wei
,
HAN Weifeng
,
LI Jing
,
WU Chongyao
. Research and Application of Intelligent Track-Bound Transportation System in TBM Tunneling[J]. Tunnel Construction, 2025
, 45(3)
: 477
-498
.
DOI: 10.3973/j.issn.2096-4498.2025.03.004
