APPLICATION OF GEOGRAPHIC INFORMATION SYSTEM FOR WATER DISTRITBUTION NETWORKS THROUGH QUANTUM GIS PLUG-IN WITH HYDRAULIC SIMULATION FOR INFRASTRUCTURE AND DEVELOPMENT PLANNING

摘要

Globally the vital renewable natural resource at present and for the future scenario is considered to be water. Globally all country has been striving to address on many research aspects by which we can sustain this resources considering various aspects such as quality, optimization, maintenance etc. In order to ensure the availability of sufficient water, it becomes almost imperative in a modern society, to plan and design sustainable water distribution network (WDN) to the various section of the community in accordance with their requirements and demands. This study combines application of Geographic Information System(GIS) as a framework for managing and integrating data by Quantum GIS i.e(QGIS) with mainly three hydraulic plugins i.e.Ghydraulics, Open layer and Qgis2threejs.Ghydraulics allows to analysis WDN with Epanet, open layer with open street maps whereas Qgis2threejs plugin helps in exporting terrain data, mapping canvas image and vector data to the web browser and later analyzing through hydraulic simulation in EPANET. The main challenge faced is the decisions to ensure delivery of water to several locations with optimally sized, and compatible with existing infrastructure considering the demand and supply. The application of Geographical Information Systems (GIS) is to visualize, and simulate entire WDN from source to household and creating a technology with considerable potential for achieving remarkable gains in efficiency and productivity. Generally, the planning of the pipeline grid is carried out using Survey of India toposheets and preliminary ground survey which are demanding and time-consuming. In this research, use of remote sensing via spatial data, along with digital elevation model (DEM) is carried out for assessment of pipeline grids. DEM generated are used to understand the possible topographic profile which indicates the possible routes of gravity flow and outlines a procedure for pre-feasibility analysis and least pipe network could be laid thus optimizing the project considering all above-said parameters.