Abstract: The advantages and disadvantages of two water pumping schemes commonly adopted in running tunnels in urban rail transit works are compared and the parallel operation of several pumps are checked, in order to select rational and feasible waste water drainage scheme. Conclusions drawn are as follows: 1) Appropriate scheme should be selected for the water pumping stations in running tunnels through careful comparison and contrast; 2) The singlepump operation mode and the doublepump operation mode should be checked according to the data provided by the pump manufacturer so as to select appropriate pumps so that the pumps can work with high efficiency, whether in singlepump mode or in doublepump mode.

Key words: urban rail transit, running tunnel, water pumping station, long distance water pumping, parallel operation