platform tunnel
2.This research focused on the excavation process of the tunnel and underground engineering construction and the monitoring data, by introducing the concept of temporal GIS, and designing data structure with temporal characteristics, the main frame of the DTE platform is put forward and applied in Xiamen subsea tunnel.
5.In metro system, if the absorbing resistor of the vehicle absorbs the regenerative energy during the train operation, the problem of temperature rise will occur in tunnel and platform, and this will consequently increase the load of environment control system in station, increase considerably the energy consumption and the construction &operation cost.

