A Quantitative Method for Obtaining the Uncertainty of 3D Geological Model of Ore Deposit

Abstract

The invention provides a method for quantitatively obtaining uncertainty of a three-dimensional mineral deposit geological model. Firstly each attribute of modeling data in the mineral deposit geological model and uncertainty thereof are processed standardly, and furthermore layering processing is performed on the modeling data according to the characteristic of the mineral deposit. Then Kriging interpolation is performed on each attribute of the modeling data in a certain layer and the uncertainty, and furthermore tetrahedral picture dividing is performed. The uncertainty of the modeling method of each divided layer and the uncertainty of the modeling data are obtained. The uncertainty of the modeling data are overlapped with the uncertainty of the modeling method, thereby obtaining the uncertainty of each divided layer. Finally the uncertainty of the layers is overlapped, thereby obtaining a uncertainty model of the whole mineral deposit geological model. According to the method forquantitatively obtaining the uncertainty of the three-dimensional mineral deposit geological model, through analyzing the uncertainty of the mineral deposit geological model, establishing the uncertainty model, precision of the mineral deposit geological model can be quantified, and a scientific evaluation basis is supplied for decision of related design and production process.

Description

technical field

[0001] The invention relates to the field of three-dimensional ore deposit geological modeling, in particular to a method for quantitatively obtaining the uncertainty of a three-dimensional ore deposit geological model. Background technique

[0002] The ore deposit geological model is an important basic model for mine planning, design and production. All along, the ore deposit geological model has been understood and established in accordance with the deterministic method, and it is used as the only accurate basis for mine planning decision-making. In practical application, the inaccuracy of the geological model of the mineral deposit often leads to major mistakes in design and even serious safety accidents. Due to the influence of many factors such as data collection density, errors in the collection process of various data, and the accuracy of modeling methods, the established geological model of the deposit must be uncertain. Therefore, the uncertainty of ...

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