Research And Development Of Comprehensive Treatment System Of Coal Mining Subsidence Area Based On WebGIS

With the rapid development of social economy,the ecological environment on which people depend has also been affected to a considerable extent.Due to the improper governance of some coal mining enterprises after mining,the surface subsidence has formed subsidence.Nowadays,coal mining enterprises need to plan and manage the subsidence area according to different surface environments and local conditions.However,in terms of the management of subsidence sites,most coal mining enterprises are still using data tables,and the form of drawing drawings handles a large amount of data,and the work tasks are extremely cumbersome.In order to improve the work efficiency of coal mine users,various data in the process of subsidence land management are implemented in information and intelligent management,and a comprehensive management system for coal mining subsidence land based on WebGIS is designed and developed.The system is based on the ArcGIS platform and adopts the B/S design mode.The map data is stored in ArcGIS on the server by publishing a map service.The ArcGIS API interface of JavaScript is called to visually process the data of the collapsed land and complete various functions of the system.They are user management module,partition management module,subsidence data management module,subsidence management query management module and file management module.The user management module mainly manages users with different identities.The functions and permissions of the users with different identities are also different.The management module is to set the legend,eagle eye,coordinate display and other elements of the thematic map of the collapsed foundation.Switching management between intervals;the data management module of subsidence area is to visually process the data of subsidence base block elements,including the addition,modification,deletion and statistical analysis of subsidence base elements;subsidence land query management module Mainly locate and locate the thematic maps of various subsidence sites including mines,projects,land types and subsidence sites;the file management module supports file upload and download,and realizes file sharing among different users in advance.The system has been installed and operated in Jining Coal Mine Enterprise.The system's operation and test results show that the system has a certain practical role,realizes the visualization of the data,and achieves the effect of intuitive and convenient processing and analysis of the collapsed land data.It can provide coal mine enterprises with timely and up-to-date data on subsidence site management,and also provide reference value for formulating a more scientific and effective comprehensive treatment plan for subsidence sites.