成都市2010年供水管网规划研究

为搞好未来供水和管网的建设,开展了成都市2010年供水管网规划的研究。提出在规划之初必须进行现状管网的模拟,找出现状管网存在的问题;对于水量预测,认为《城市给水工程规划规范》(GB50282-1998)的水量指标值偏高,不适用于管网规划,必须结合当地实际情况进行水量预测指标的研究;在节点流量的分配上,重视大用户流量的分配,沿线流量采用供水面积比流量的计算方式;并提出了成都市管网压力和流速的评价指标。通过上述研究,可最终建立成都市供水管网规划模型。

On planning of water distribution network 2010 in Chengdu City

For the forthcoming construction of water supply engineering and distribution network in Chengdu City, a research on water distribution network 2010 planning was done. It has been to simulate the current pipe network and find problems before the planning. The guideline for water consumption prediction in the stipulations in Code for urban water supply engineering planning (GB 50282-1998) is too high, it is unsuitable for this planning. So a research on water consumption prediction considering the actual situation was done. In the distribution of the nodal flows, special attentions were paid to the big users and the prolongitudal flow along the line was calculated on the basis of the radio of flow to serving area. Also it was proposed the evaluation criterion on pipe network pressure and velocity in Chengdu. Through above-mentioned research, it has been succeeded in setting up the planning model of Chengdu water distribution network.