Slope Stabilization Work Air Pollution Type Air Problem Dust Relevant Env. Control Air Pollution Control (Construction Dust) Regulation, Cap. 311R requires the relevant contractor to adopt effective dust control measures. Practical Solutions Continuously wet the surface of soil nail/rock dowel operation with water or cover with tarpaulin during drilling Erect dust screen around the drilling area Enclose cement batching process for shotcreting Shelter cement bags for shotcreting Cover the drill bit with tarpaulin to suppress dust emission during drilling for soil nail Continuous manual watering the drill bit to suppress dust emission during drilling for soil nail Mist shield to suppress dust emission during drilling for soil nail Dust shelter for slope stabilization work Shelter cement batching station on top and 3 sides for cement batching and mixing Impervious sheet cover for cement bags Storage housing for cement bags
