关于城市排水(雨水)防涝规划编制的思考

Discussion on issues about urban drainage system and local flood control planning

随着城市雨水系统规划设计的范围扩大,已经逐渐超过了基于推理公式法的雨水系统规划设计方法的适用范围,导致计算结果出现偏差,影响雨水系统的安全性。同时,目前全国开展的城市排水防涝规划中,要求转变思路以及加强数学模型等新技术的应用,但由于规划的编制和模型等新技术的应用在我国还处于起步阶段,很多具体技术问题有待探讨。总结了排水防涝规划的核心问题及思路,对规划编制的重点问题以及数学模型的应用等几个关键问题进行探讨。

With the urban development,the design scope of urban drainage planning was enlarged,which exceeded the applicability of traditional scope of urban drainage system planning based on reasoning formula method.The design scope problem may lead to the result warp and influence the security of the drainage system.And rapid urban development also worsens the problems of urban water accumulation problem.It was important to find a way to analysis risk of urban accumulation under the condition of over standard rainfall and to establish emergency planning and the perspective planning of urban drainage system rebuilding.At present,according to national requirement,urban drainage system and local flood control planning was doing in most of cities in China.Therefore,in order to safeguard the security of the urban drainage system,it is necessary to improve and perfect the original design method to meet the current needs of urban development.The urban flood control system planning also call to increase application of mathematical model.However,the application of this technology in China is still in the initial stage,many problems have to be solved.Based on the relevant research results,the usual way to construct model,methodology to build different scale model and related technical problems were discussed in this paper.