安全管理(1)

[VI-487] Study for mesurement of multi-point dust concentration in tunnel by simple dust sensor

〇Koshiro Kakeya¹, Hisashi Hayashi¹, Masato Shinji¹ (1.Yamagchi university Sciences and Technology for innovation)

Keywords:floating dust, tunnel ventilation, light scattering method, tunnel worker safety

In order to design a suitable tunnel ventilation method among various ventilation methods in the tun-nel construction site, conducting multi-point and frequent measurement of floating dust concentration and aiming to collect simply the location of dust in the tunnel by cheap and small dust sensor. I have de-veloped a simple dust sensor. And, it was clear by simulated tunnel environmental experiments whether the developed dust sensor is suitable for measurement in a tunnel. As a result, it was found that the de-veloped simple dust sensor can measure the concentration generated during tunnel construction. The measurement results are almost the same as the digital dust sensor used for dust measurement.