面向钻孔数据的层状矿体三维建模及其可视化

目的根据钻孔数据构建层状矿体三维模型.方法利用“断面-TIN-GTP（General-ized Tri-Parism）模型”,基于领域知识的快速层状矿体三维模型构建算法DK-Section2TIN,通过引入专家知识或经验交互式地修改勘探剖面图,构建矿体三维模型.结果通过实例说明矿体三维模型估算的矿产储量、品位估算与实际开采的误差很小,构建的矿体三维模型能够真实地反映矿体的空间分布状态,预测矿产储量、品位等.结论（1）基于领域知识的“断面-TIN-GTP模型”构建的矿体三维模型,能够将计算机的自动处理与专家的知识和经验相结合,实现了基于专家领域知识的交互式层状矿体的建模;（2）提出的层状矿体三维模型构建算法DK-Section2TIN,提高了层状矿体三维模型的构建速度,通过实际生产数据验证,构建的矿体三维模型能够真实地反映矿床的实际情况.

3D Modeling and Visualization of Borehole-Data-Oriented Bedded Mineral Deposit

The 3D model of bedded orebody based on borehole data was established.The Section-TIN-GTP 3D model and a fast domain-knowledge based DK-Section2TIN algorithm were proposed to establish the 3D model of a bedded orebody.The experimental results show that the difference between the mineral deposit and grades evaluated on the basis of the 3D model of orebody and those calculated from real exploiting is very little.The 3D model of a bedded orebody proposed in this paper can really reflect the space distribution of the orebody and assess its mineral deposit and grades.The 3D model of orebody based on the Section-TIN-GTP model can combine the automatic processing of the computer with the knowledge and experiences of domain-matter experts.DK-Section2TIN algorithm for the construction of the 3D model of a bedded orebody proposed in this paper improves the speed of the construction of a 3D model by employing some special features of borehole data.The 3D model established using the approach proposed in this paper can reflect the real situation of a bedded orebody according to the tests on real data.