基于综合指数法地质构造复杂程度的评价研究

Assessment of geological structure complexity based on comprehensive index method

随着地理信息系统以及定量评价手段在煤田勘探行业得到了较为广泛的应用,煤炭资源的勘探更加信息化和定量化。为此,首先选取了可以精确分析地质构造的复杂程度、降低评价分析难度的7个评价指标,建立了基于BP神经网格法的综合指数法评价体系。并以某井田为例进行了地质构造复杂程度的定量评价,得出变换指数为0.01,远小于判定依据0.3,故地质构造复杂程度为简单。该地质构造程度的定量评价可为采区布置方式以及矿井开拓方式提供了基础,也为减少矿井开采事故提供了依据。

With the wide application of GIS and quantitative assessment methods in coalfield exploration industry,the informatization and quantification of coal resource exploration have been improved.By selecting seven assessment indexes which can accurately analyze the complexity of geological structure,the comprehensive index assessment system based on BP neural network method was established.Taking a minefield as an example,the quantitative assessment of the complexity of geological structure shows that the transformation index is 0.01,which is far less than 0.3,so the complexity of geological structure is simple.The quantitative assessment of the complexity of geological structure can provide a basis for the determination of mine development mode and the layout of mining area,and also provide a basis for reducing mine mining accidents.