ABSTRACT
The case study describes implementation of a new Wet Type Dust Extraction System designed to control fugitive dust generated at a large tunnel project in British Columbia, Canada. Tunnel specifications called for a tunnel 1000m in length and approximately 14m diameter. Regulators found unacceptable levels of dust and required mitigation devices to be implemented before the project could commence again. The paper briefly describes expedient implementation and operation of a highly efficient exhaust ventilation and dust control system that would remove particulates to meet both emission and ventilation parameters for the construction area. The discussion includes the implementation of the exhaust ventilation and dust control device and the corresponding test data to illustrate dust levels before and after implementation at critical tunnel locations in the construction area.
