Study On Consolidated Drainage System Of Urban Roads

If the urban road drainage influences the road surface for a long time, it will reduce the strength of the road material. This not only can lead to a variety of water-related road traffic problems, and may cause traffic accidents. Especially for urban roads, due to topography and land use restrictions, the study of the urban road drainage system has more practical significance in order to discharge rainwater timely and effectively,The integrated drainage system should be set, including the roadbed internal drainage, internal drainage of the pavement structure, the road surface drainage. Based on the different forms of drainage patterns, this paper gives a comprehensive drainage scheme and the application conditions of the different drainage patterns., which can provide practical significance for guiding the engineering design and construction..By calculating, the flow calculation formula of the shallow triangular ditches, low-lying areas of shallow triangle ditches, rectangular ditches and trapezoidal ditches are gained. By the analysis of applicable conditions of different side ditch form and Influence factors of side ditch flow, the methods of increasing side ditch flow and water drainage capability of outlet.By empirical formula and the method of theoretical analysis, the formula of Drainage capacity of different forms of outfall in the continuous slope paragraph and the bottom of the vertical curve.By the study of the displacement changes under different conditions, the application conditions of different forms outfall are provided.Through analyzing the drainage ability of drain outlet, with the specific method of drain spacing design, special form designed for urban road surface outfall design are given, and the design work are simplified...