某铁矿山云数据的三维地质建模与地质灾害评价

传统矿区地质灾害三维建模软件在数据存储和录入上存在的碎片化问题较突出。为此以吉林省通化市某铁矿山为例,在分析矿区地质及水文地质特征的基础上,结合SQL Server Compact 4.0、SQL Server 2008数据库及Civil 3D建模软件,建立了矿山地质数据云服务系统,并分别从数据存储与管理、云数据同步、基础地质数据录入等方面详细分析了矿山三维地质建模流程。研究表明:该系统通过云服务器和本地三维模型的核心数据,能够实现查询、分析和修改各模型单元,还可完成地质剖面和平面图的出图工作,实现双向动态自动关联,大大简化了基础地质数据录入流程,有助于克服传统三维地质建模软件存在的数据存储、迁移等难题。在上述分析的基础上,针对矿区主要存在的滑塌地质灾害类型,根据滑塌体所处的地形地貌特征、危岩体主控结构面发育特征及危岩可能失稳破坏方式,将危岩体视为完全刚性块体,并采用极限平衡理论推导了不同类型危岩在不同荷载组合下的稳定性计算方法。分析结果对于进一步治理该矿区地质灾害有一定的参考价值。

Three-dimensional Geological Modeling of Cloud Data and Geological Hazard Evaluation of an Iron Mine

Fragmentation problems of data storage and input of traditional three-dimensional modeling software are exis-ted significantly. Taking a iron mine in Tonghua City,Jilin Province as the study example,based on analyzing the geological characteristics and hydrogeological characteristics of the mining area,combing with SQL Server Compact 4. 0 and SQL Server 2008 database and Civil 3D modeling software,the mine geological data cloud service system is established,and the three-di-mensional geological modeling process is analyzed from the aspects of data storage and management,cloud data synchroniza-tion,basic geological data input. The study results show that:functions of query,analysis and modify of the model elements are realized based on the cloud server and core data of local three-dimensional geological model,and the profile figure and floor fig-ure can be drawn effectively,the bidirectional dynamic automatic correlation is realized,which simplified the basic geological data input process greatly,and is good for solving the problems of data storage and data migration of the traditional three-dimen-sional geological modeling softwares. Based on the above analysis results,in view of the landslide and collapse geological disas-ter types that are mainly existed in the mining area,according to the topography and landform characteristics of the area the sliding body is existed,development characteristics of the master structural planes of dangerous rock mass,instability failure mode of dangerous rock mass,the dangerous rock mass is regarded as fully rigid block,the stability calculation method of dif-ferent types of dangerous rock mass under the different load combinations is discussed based on limit equilibrium theory. The a-bove analysis results of this paper can provide some reference for the further settlement of the geological hazards in the mining area.