전동차 운행시 발생되는 PM10의 특성에 관한 연구

초록

The characteristics of PM10 generation by subway operation such as acceleration, constant velocity, decelerationor stoppage were measured in real time to study its causes. For measurement positions, the lower center pointon the front side of the Tc1-car was selected to observe the re- suspension caused by train draft, and behind theM2-car wheel and the T1-car wheel were selected observe the abrasion loss from friction generation during cabinoperation. The measurement results showed that the PM10 generation is increased by train draft was 5.6% in theconstant velocity section and 1.45% in the acceleration/deceleration sections. The increase by adhesiveness forcabin acceleration/deceleration was 9.6%, while the increase caused by friction from motor operation and steeringwas 5.1%. On the other hand, the amount of PM10 flowing into the station when a cabin was stopped at a stationwas 136% of normal condition and this might be the key reason of PM10 pollution in a subway tunnels sincemost pollution is accumulated there.

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