关键词: 矿山运输道路, 防尘技术, 抑尘剂, 抑尘路面, 现场应用, 防尘效果

Abstract: In order to ensure the safety and sustainable development of the ecological environment in the mining area，aiming at the problem that the traditional mine road dust suppression technology is easy to fail under the condition of high frequency traffic of large tonnage mining truck，the efficient dust preven⁃ tion technology of mine transportation road is studied.Through the technical path of building dust suppres⁃ sion road + daily maintenance，the self-developed EXPL-1 dust suppressant is used as the binder and maintenance agent，and the dust suppression pavement is constructed through specific roadbed treatment， material mixing，paving and rolling，and pavement maintenance process. The dust suppression perfor⁃ mance and the characteristics of pavement engineering are systematically verified.The results show that the road surface can reduce the dust concentration by 74.4% compared with the traditional sprinkler section. Spraying low concentration dust suppressant twice a day can achieve continuous and effective dust suppres⁃ sion for 24 h. The road surface compaction degree is 95.2%，the friction coefficient is 0.47，and the water seepage coefficient is 0 mL/min，which has good road performance.The water consumption per unit (trans⁃ port distance × transport volume) is reduced by 93.2%，and the water-saving effect is remarkable. This technology provides an efficient，long-term and water-saving dust control solution for mine transportation roads，especially in arid and water-deficient and strong wind-sand mining areas.

Key words: mine transportation road, dust prevention technology, dust suppressant, dust suppression road surface, field application, dust prevention effect