Trash cleaning and flow splitting method for tunnel construction waste water of double-track railway transverse gallery

Abstract

The invention discloses a trash cleaning and flow splitting method for tunnel construction waste water of a double-track railway transverse gallery. Construction waste water on a tunnel face and a primary lining segment is diverted to a waste water drainage ditch through a sump gravity or movement lifting pump and a waste water booster pump station, clear water of a circumferential blind pipe / longitudinal blind pipe of a secondary lining segment is collected by utilizing a clear water drainage ditch, and a water retaining flashboard is arranged at the origin end of the clear water ditch for isolation, so as to implement independent collection and trash cleaning flow splitting of the construction waste water and the clear water of the primary lining segment and implement a case that the waste water self-flows to be discharged out of the gallery. The trash cleaning and flow splitting method for the tunnel construction waste water of the double-track railway transverse gallery, which is disclosed by the invention, is simple to operate and control, good in flow splitting effect and simple and convenient to manage, and has high application value for an abundant water tunnel or high-water-inflow tunnel in a mountainous area. After the trash cleaning and flow splitting method for the tunnel construction waste water of the double-track railway transverse gallery is applied, the tunnelwaste water treatment scale and the treatment water volume can be greatly reduced, and construction and operation cost of a water waste treatment station is reduced.

Description

technical field [0001] The invention belongs to the technical field of railway tunnel construction engineering, and in particular relates to a method for cleaning and diverting sewage from tunnel construction in a double-track railway cross tunnel. Background technique [0002] With the rapid development of railway construction projects and the strengthening of ecological environment protection, the environmental impact of railway tunnel construction has also attracted people's increasing attention, among which tunnel construction wastewater is considered to be one of the pollution sources. In recent years, the country has also increased its investment in tunnel construction wastewater treatment year by year. The construction of the railway tunnel construction wastewater treatment project has well protected the ecological environment of the area along the line and promoted the coordinated development of the local economy, society and environmental protection, but its huge in...

AI Technical Summary

Problems solved by technology

The construction of the railway tunnel construction wastewater treatment project has well protected the ecological environment of the area along the line and promoted the coordinated development of the local economy, society and environmental protection, but its huge investment cost has also brought greater economic pressure to the railway construction

Images