非连续煤层实体模型一体化构建技术研究

Study on integrated construction technology of non-continuous coal seam solid model

针对受断层切割影响而导致连续煤层模型难以构建问题,系统研究了复杂断层网络切割作用下非连续煤层模型一体化构建过程与方法、分析了断层数据类型,断层切割影响,揭示了断层与煤层模型构建之间的关系,提出了正断层错动处理、逆断层错层处理方法。研究结果表明:优选断层线作为断层建模数据,可实现复杂断层网络切削处理与模型构建;通过扩展初始煤层面,优化了断煤交线形态,解决了煤层与断层模型无缝拼接问题;通过调整断层与煤层接触关系,消除了数据重叠区域干扰。最终通过构建复杂断层网络模型、非连续煤层面模型,实现了非连续煤层实体模型的一体化构建。以扎哈淖尔露天矿三维地质模型构建为实例,验证了技术方法是可行性的。

The coal seam model was difficult to construct due to the influence of fault cutting,the process and method of integration of discontinuous coal seam model under complex fault network cutting were put forward in this paper.The fault data type was analyzed,considering the effects of fault cutting,the relationship between fault and coal seam model construction was revealed,the method of normal fault dislocation treatment and reverse fault split layer treatment was proposed. The results showed that the fault line was preferably used as fault modeling data and through the trend extension method,the complex fault network cutting processing and model construction were realized.Considering the effects of fault cutting,the shape of the coal line was optimized by expanding the initial coal level,seamless splicing of coal seam and fault model was solved,by adjusting the contact relationship between faults and coal seam,the data overlap area interference was eliminated.By construction of complex fault network model and discontinuous coal seam model,the integration of non-continuous coal seam solid model was realized.Taking 3D geological modeling of Zhahanaoer Open Pit Coal Mine as an example,the feasibility of the technical approach was verified.