Research And Development Of Tunnel Construction Monitoring System Based On WebGIS

With the deepening and development of the combination of Surveying and Mapping Science and computer network technology,Geographic Information System(GIS),as an interdisciplinary subject of Surveying and Mapping Science and computer technology,is developing towards the direction of diversified research and application fields.Web Geographic Information System(WebGIS)is one of the new developing trends of GIS.It has many advantages such as visual interface operation,low development cost and good performance.In informatization tunnel construction monitoring,the tunnel project is a one-off large investment,long construction period and the existence of potential safety hazard and other characteristics,more need for comprehensive monitoring of tunnel construction area and surrounding environment,and will monitor the object and its corresponding monitoring data with the method of network geographic information system for information management,achieve timely processing monitoring data,sharing and feedback construction monitoring results and the risk early warning and other important function.This paper makes a detailed study on the development methods of tunnel construction monitoring system at home and abroad and the current application status of WebGIS in the field of civil engineering by consulting materials,and sorts out and analyzes a series of work contents such as the monitoring scheme,measurement method,data collection and processing of tunnel construction monitoring project.In guarantee function completeness and good performance,on the basis of this article uses the Vue framework to build the user interface,using open source Java Script library Cesium map as a development platform,at the same time using the database information storage and management of monitoring data,using open source library every combination of annotation objects,real-time display and handle monitoring data,achieved good operating results and trend analysis results.In terms of 3d visualization,the 3d tunnel model was generated by 3DMax software in this paper,which was converted into format and loaded into the map through the interface provided by Cesium to improve the visualization effect of 3d tunnel entity.In the aspect of system function development,this paper designs the function panel that meets the user’s demand through the in-depth investigation of the monitoring project,and preliminarily realizes the monitoring data display function that the project actually needs.To sum up,based on a tunnel construction monitoring project in Chongqing,this paper proposes a method to display and analyze construction monitoring data by combining 3d tunnel model with Cesium and other open source libraries,and researches and develops a tunnel construction monitoring system based on WebGIS.In addition,the monitoring data and 3d model visualization system based on B/S structure is preliminarily realized,which verifies the feasibility of the system architecture and the rationality of the functional design proposed in this paper,which is of great value to the application of WebGIS in the field of civil engineering and the development of monitoring technology.