There may be a small amount of leakage resulted from the low rotating speed of unit when turned on or turned off. The leakage would be drained to sumpwell through sealed drainage pipe.
启停机时机组转速较低，可能会有少量漏水，漏水通过密封排水管排入集水井。
2
According to the surrounding character of well bottom sump, the destroy reason is analyzed, and feasible support methods are provided.
针对井底水仓的围岩特性，对破坏原因进行分析，提出切实可行的支护方法。
3
The result comparison between the numerical simulation and PIV experiment shows that VOF model can well simulate the flow in the pump suction sump.