Abstract：
The Huayingshan super-long highway tunnel passes through oil-containing strata, and the crude oil produces hydrogen sulphide, which is poisonous and smells like rotten eggs. The hydrogen sulphide permeates through lining cracks as percolating water enters into tunnel, creating unsanitary and uncomfortable conditions. Measurements of content and volatility of hydrogen sulphide in the percolating water demonstrated that the percolating water is the major channel through which hydrogen sulphide is carried. According to the distribution of hydrogen sulphide in the tunnel, the source of the hydrogen sulphide was determined. Incorporating analysis and measured data, a comprehensive treatment was applied, including enclosed drainage, crack sealing, and improved ventilation during tunnel operations. Referring to concentration control standards of hydrogen sulphide in other professions, sanitation and comfort criterion is determined. Because there are no current national standards, the conclusions presented within this paper can be used as a reference for future projects.
2011, Vol. 48 