In order to efficiently express 3D objects in the actual world, especially, coal beds, a new method of 3D based on set theory was proposed after analyzing complicated 3D data of coal beds.

• 摘要为了有效地表达现实世界特别是煤矿床的三维空间实体，在分析了复杂煤层三维数据的基础上，基于集合论的数学思想，提出了一种新的抽象的煤矿床空间数据模型。