The chemical features of ground water and FDA model used to distinguish source of water burst in Jiaozuo mine area
-
摘要: 运用统计学Fisher判别分析(FDA)理论，根据含水层涌水水样的水化学分析结果，建立焦作矿区涌水水源的数学识别模型，分析了矿区地下水水化学特征及形成机制，确定了含水层涌水的补给来源，并对它们进行判别分析及结果验证。结果表明：FDA模型预测涌水水源与常规水化学方法分析结果基本一致；矿区奥灰水补给太灰水特征明显，煤层顶板砂岩水与深部岩溶水联系较弱。FDA模型利用回代估计法所得到的误判率小，适用性强，简易方便，具有较强的涌水水源判别能力。Abstract: Using the Fisher Discrimination Analysis Theory(FDA), and according to the analysis results of the water sample, the authors establish the mathematical recognition model of the source of water burst in the Jiaozuo mining area and do its discriminatory analysis and result verification. Using synthetic water chemical analytical method and the FDA model discriminatory analytical method of the source of water, and analyzing chemical characteristic of groundwater and forming mechanism in the mining area, the authors confirm source of water burst in the water-bearing strata. The research result shows that the result of FDA predicated water bursting source agrees with that of the chemical methods analysis of normal water; Ordovician groundwater recharges limestone in a remarkable way; the connection between sandstone water of the seam roof and deep karst water is weak; the FDA model is very powerful in identifying the source of water burst; by using back substitution estimation method, the error decreases continuously and it is of great applicability, easy to handle. It may offer scientific basis for the countermeasures of mine water burst.
-
Keywords:
- water burst /
- mine /
- water chemical research /
- Fisher discrimination model
-
计量
- 文章访问数: 33
- HTML全文浏览量: 8
- PDF下载量: 6
下载:
