Abstract Excessive dust in railway tunnels could block the driver′s view, do harm to peoples′ health, and cause frequent equipment failure, and tunnel dust removal is therefore very important. In order to ensure smooth dust removal in railway tunnels, typical examples of new railway tunnels and existing railway tunnels should be selected for the establishment of tunnel dust standards, the functional performance definition of tunnel dust-cleaning apparatus and the tunnel dust norm measurement for incorporation into relevant specifications. Test results show that: 1) tunnel dust removal standards in the joint debugging and commissioning can stipulate that dust content in every cubic meter of air is 1~2 mg; and 2) dust removal in the tunnel should be done before railway debugging and commissioning, with a three-step operation method of dust removal adopted for ballastless track tunnels and a four-step operation method adopted for ballasted track tunnels. Dust-cleaning vehicles are usually used during the operational period.
Abstract：
Excessive dust in railway tunnels could block the driver′s view, do harm to peoples′ health, and cause frequent equipment failure, and tunnel dust removal is therefore very important. In order to ensure smooth dust removal in railway tunnels, typical examples of new railway tunnels and existing railway tunnels should be selected for the establishment of tunnel dust standards, the functional performance definition of tunnel dust-cleaning apparatus and the tunnel dust norm measurement for incorporation into relevant specifications. Test results show that: 1) tunnel dust removal standards in the joint debugging and commissioning can stipulate that dust content in every cubic meter of air is 1~2 mg; and 2) dust removal in the tunnel should be done before railway debugging and commissioning, with a three-step operation method of dust removal adopted for ballastless track tunnels and a four-step operation method adopted for ballasted track tunnels. Dust-cleaning vehicles are usually used during the operational period.
ZHANG Chong-Dong
.Research and Application of Dust Removal Technology and Standards for Railway Tunnels[J] MODERN TUNNELLING TECHNOLOGY, 2016,V53(5): 1-5
2016, Vol. 53 