Risk Information Management System of City Gas Line Based on GIS

摘要

The pipe network has throughout each corner and entrance thousands of families with the constant development and expansion of gas pipeline in our country; it also has provided our life with more convenience. However, since geological conditions and surrounding environment of gas pipeline are very complex, and gas transportation in pipeline is flammable, explosive, toxic and pernicious; once leakage happens in pipeline, it is apt to cause combustion, explosion accident, casualties and enormous property losses. Therefore, pipeline security has gradually become a critical concern of the country and the whole society. Taking geographic information system (GIS) as a platform, a set of city natural gas pipe network risk management information system was developed using the MapX C/S structure pattern in this study, which can realize real time inquiry of pipeline basic information and security evaluation. It has also set up a variety of emergency response measures and rescue proposals when an accident takes place. It offers technical support for incident succor and emergency response management. It also can forecast a variety of consequences such as flame, blast and leakage accident through invoke background program; the coverage of incident can be shown in graphs. It can provide optimized rescue route and personnel evacuation path, supporting technically for rescue decision making.