历史勘察数据在城市地理信息系统中的有效利用

信息系统将城市中的公共资源信息通过互联网有机连接起来,智能化做出响应,更好地服务于社会,但信息系统的建设必须基于大量的基础数据。经过多年积累,目前很多行业存在拥有大量的历史数据,但因数据产生的年代、使用的标准各不相同,导致这些历史数据难以共享及纳入地理信息系统。本文首先通过对某市标准各异的工程勘察数据建立城市标准地层的方式形成地层的标尺,并据此对历史勘察数据其进行标准化。项目采用矢量化的宏观区域地质数据与微观点状勘察数据相结合的方法将勘察行业大、小数据进行有效衔接。通过逐渐加密三维系统中各地质剖面并进行循环闭合验证方法,删除进入系统的异常数据,通过这种方法有效解决了该市地质信息系统建设过程中勘察行业历史数据不能互通的问题,也为其他行业历史数据的利用、归一处理和合理性验证提供了完整的工作思路。

Urban Historical Geological Data in the Effective Use of GIS

Information system in the city public resources information through the Internet efficiently connect,intelli-gent to respond,to better serve the society. Which the information of all public resources must be based on a large num-ber of basic data. At present a lot of industry belongs to each unit after many years of accumulation has a lot of historical data,but On the one hand,the domestic each unit has a lot of historical data,the current continues to generate a lot of very valuable in survey data,but these data because of different criteria,different format cannot be compatible,cause at the end of the project on the shelf even more slowly lost. On the other hand prior to the construction of the project lacks basic geological data for prior to the construction of the city′s overall planning,functional partition of urban planning,the development and utilization of underground space,the location of the construction projects,project investment estimation of decision-making to provide geological basis and related Suggestions . One standard of different engineering this paper based on the survey data to establish urban standard formation way of the formation of scale formation,and on the basis of the historical geological data standardization. Project using macro regional geological data and micro dot method combi-ning the survey data to survey industry,and little borehole data to carry on the effective connection. By gradually encryp-tion three-dimensional geological section of the system and the validation method of loop closure,deleting abnormal data into the system,through this method effectively solves the city’s geological prospecting industry in the process of informa-tion system construction history data cannot be exchanged problems,also for other industries the use of historical data and the normalization processing and rationality validation provides a complete working train of thought.