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新奥法施工隧道掘进作业粉尘时间加权平均浓度为１４．４ｍｇ／ｍ￣３＿ｎ。各工班中以炮后时间加权平均浓度最高（４１．８３ｍｇ／ｍ￣３＿ｎ），装碴和打眼分别为２２．８４ｍｇ／ｍ￣３＿ｎ和６．４４ｍｇ／ｍ￣３＿ｎ。掘进作业全过程时间加权接尘量为１２２５９．５７ｍｇ／ｍ￣３＿ｎ．ｍｉｎ）。其中装碴接尘量最高（７１７１．７６ｍｇ／（ｍ￣３＿ｎ．ｍｉｎ）占掘进全过程总接尘量的５８．５０％。各产尘工序产尘量构成比也以装碴最高（６５．５３％），打眼和爆破分别为１８．７８％和１５．６７％。
New Austrian law tunneling operation dust time weighted average concentration of 14.4mg / m ~ 3_n. In each class, the weighted average concentration of gunner time was the highest (41.83mg / m ~ 3_n), and the ballasting and drilling holes were 22.84mg / m ~ 3_n and 6.44mg / m ~ 3_n, respectively. Driving the whole process of weight-weighted dust was 12259.57mg / m ~ 3_n. min). Among them, the amount of ballast dust was the highest (7171.76mg / (m ~ 3_n.min)), accounting for 58.50% of the total amount of dust in the whole tunneling process. 53%), drilling and blasting were 18.78% and 15.67% respectively.