Design and Analysis of Water Distribution Network Using EPANET and GIS for Pattanam Rural Area of Coimbatore District

Aathira M, E. K
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引用次数: 1

Abstract

. Water distribution analysis and design is one of the challenging aspects in civil engineering which involves looping system of water distribution with extreme level of bursting pressure like lower than the atmosphere or much heavier pressure beyond the surge level due to differential elevations. The two major constraints that directly involved in major distributions are effective diameter of the pipe and permissible level of pressure at each nodal links/demand points. The paper deals with the planning of water distribution network through combined gravity and pumping looping system of network and satisfies the overall demand at each nodal point in and around the study area. The study area chosen is Pattanam rural area of Coimbatore district, Tamil Nadu. The population of the study area is 10,020. The present scenario in the study area is the presence of 9 overhead water tanks with average capacity of 40,000 litres. The feasibility of integrating the main supply with a single tank for the study area is checked. With the data obtained from field survey and data collection, a spatially bound model is created using ArcView GIS software. The output of ArcView model is then interchanged to EPANET input file with the help of interchange tool. This model is then imported in EPANET software. Keeping the flow and demand as a major factor and optimum diameter and pressure as constraints, a network is generated in EPANET software package. The output model from EPANET is checked for accuracy with manual calculation that is carried out using Hazen-William’s chart as well as with the field scenario. An integrated water distribution network model is thus suggested for the study area. The various tanks in the study area account for more head loss as well as more maintenance as many of the tanks are located to serve undeserved areas. Thus, a new tank location is identified foreseeing the further population expansion of the study area. The existing pipe line is maintained the same to the maximum extent except for some increase in diameter of pipes in the main line. The further scope of the project is the model creation and spatial analysis using GIS and water distribution system modelling packages integrating with GPS for more simplified and cost effective surveying, modeling as well as maintenance of the water distribution network system.
基于EPANET和GIS的哥印拜陀区Pattanam农村配水网络设计与分析
. 配水分析与设计是土木工程中具有挑战性的一个方面,它涉及到由于海拔差异导致的极端爆裂压力水平(如低于大气或高于涌浪水位的压力)下的环状配水系统。直接涉及主要分布的两个主要限制因素是管道的有效直径和每个节点链接/需求点的允许压力水平。本文采用重力与抽水相结合的管网循环系统进行配水管网规划,以满足研究区内及周边各节点的总体需求。选择的研究区域是泰米尔纳德邦哥印拜陀地区的Pattanam农村地区。研究区域的人口为10020人。研究地区目前的情况是有9个平均容量为40 000升的架空水箱。验证了研究区域主补给与单一储罐集成的可行性。利用野外调查和数据采集得到的数据,利用ArcView GIS软件建立空间绑定模型。然后在交换工具的帮助下,将ArcView模型的输出转换为EPANET输入文件。然后将该模型导入EPANET软件中。以流量和需求为主要因素,以最优管径和最优压力为约束条件,在EPANET软件包中生成网络。EPANET的输出模型通过使用Hazen-William的图表以及现场场景进行人工计算来检查准确性。提出了研究区综合配水网络模型。研究地区的各种储罐造成了更多的水头损失和更多的维护,因为许多储罐位于不需要的地区。因此,确定了一个新的储罐位置,以预测研究区域的进一步人口扩张。除了主干线管道的管径有所增加外,最大限度地保持现有管道的不变。该项目的进一步范围是利用地理信息系统和配水系统建模软件包进行模型创建和空间分析,并与GPS相结合,以更简化和更具成本效益的测量、建模以及配水网络系统的维护。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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