One Kind of the Vector Grid Hybrid Model Being Suitable for Orebody Reserve Calculation

The tradition reserves calculation is completed by geometry average method based on two dimensional graph.The calculation process is trivial and the error is serious in this way.This paper introduces the Section-GTP-Block Model that is suitable for orebody reserve calculation based on borehole data.It constructs irregular triangle net(TIN) with constraint of section.It expands each triangle of TIN down into generalized tri-prism along borehole trace according to the symmetrical characteristic of borehole passing through orebody.It generates block model according to generalized tri-prism.Three dimension grid data structure can be setted up after block generation of orebody.It provides convenient implement for interpolation of orebody inside grade.The automatic modeling degree of this model is higher.It is practical for orebody calculation reserve.