Combined concentrative and scattered waterproof and drainage system for central dividing strip of highway

Abstract

The invention discloses a combined concentrative and scattered waterproof and drainage system for a central dividing strip of a highway. The system comprises a longitudinal upper drainage channel dug according to the central dividing strip design width, a longitudinal lower drainage channel is formed through a groove formed through concave masonry of the center portion of the longitudinal upper drainage channel, and the side wall and bottom wall surfaces of the longitudinal upper drainage channel and the longitudinal lower drainage channel are paved with cutoff water geomembrane; the bottom of the longitudinal lower drainage channel filled with gravel is provided with a longitudinal aqueduct with a water inlet in an embedded mode, and a permeable soil layer with vegetation covers the interior of the longitudinal upper drainage channel; transverse drainage channels connected with the longitudinal aqueduct are arranged below roadbeds of up and down lanes at intervals; transverse drainage culverts communicated with up and down lane outer side drainage pipe networks are formed in the middle of the geology layer below the transverse drainage channels in a spaced mode, and the upper end of a water-collecting well with the bottom communicated with the transverse drainage culverts extends to the permeable soil layer covering the longitudinal upper drainage channel. The system is simple in structure and can meet the waterproof and drainage requirements of the central dividing strip with the width being 8 m or above.

Description

technical field [0001] The invention relates to a drainage system, in particular to a scattered-collection combination type waterproof and drainage system used in the middle divider of a highway. Background technique [0002] For highways with a certain width (including urban roads and expressways), a central divider with a certain width needs to be set between the uplink lane and the downlink lane. The main functions are to isolate two-way traffic, bury communication pipes, and install anti-glare facilities. Wait. The surface water, seepage water and road surface water on the side of the superelevation section in the central divider are generally discharged through the drainage facilities of the central divider itself. The selection of the drainage form of the central divider is mainly determined by the width of the central divider and whether the surface is paved or not: 1) When the central divider is relatively narrow (<3m) and the surface is paved, the central divide...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a scattered-collection combined waterproof and drainage system for the central divider of the road to solve the waterproof and drainage problem of the central divider of the super-wide road

Images