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巷道是井下矿山系统中各种人工要素的主要空间载体,其三维空间构模问题是目前三维地学空间构模研究的重要方向之一。针对该问题的解决,给出了巷道中心线的生成方法,提出了根据巷道中心线和断面进行巷道三维空间构模算法。该算法针对圆形巷道断面和巷道交叉处椭圆断面给出了公式的推导,并利用向量算法实现了该问题的三维空间构模。算法在GIS平台下得到验证和实现,表明该方法稳定、可靠,对今后模型走向工程应用具有重要的理论和实用价值。
Roadway is the main space carrier of various artificial elements in underground mine system. The problem of three-dimensional space modeling is one of the most important directions in the study of spatial modeling of three-dimensional geosciences. Aiming at the solution of this problem, the method of generating the center line of the roadway is given, and the 3D spatial modeling algorithm of the roadway is put forward according to the centerline and section of the roadway. The algorithm gives the derivation of the formula for the elliptical cross section of a round roadway section and a roadway intersection, and realizes the three-dimensional modeling of the problem by using a vector algorithm. The algorithm is verified and implemented under the GIS platform, which shows that the method is stable and reliable. It has important theoretical and practical value for the application of the model to engineering in the future.