数值法与比拟法在矿坑涌水量预测中的应用  

Numerical and comparative methods in the prediction of pit water surges

作　　者：刘述友 胡雪峰 杨智淇 LIU Shu-you;HU Xue-feng;YANG Zhi-qi(College of Mining Engineering,North China University of Technology,Tangshan 063200,Hebei,China;China Metallurgical Shencan Qinhuangdao General Engineering Design and Research Institute Ltd,Qinhuangdao,Hebei 066000 china)

机构地区：[1]华北理工大学矿业工程学院,河北唐山063200 [2]中冶沈勘秦皇岛工程设计研究总院有限公司,河北秦皇岛066000

出　　处：《地下水》2023年第2期43-45,49,共4页Ground water

基　　金：河北省自然科学基金(D2017209229)。

摘　　要：为了明确马城铁矿地下水的流场,利用数值法与水文地质比拟法对矿坑涌水量的预测。通过分析区域和矿区的含水介质岩性特征、孔隙及裂隙发育特点、风化程度及岩层透水性强弱,利用GIS技术获取了马城矿区地下水含水层顶底板高程数据,在模型中垂向上,将区域和矿区含水系统自上而下划分为9层,对不同地层赋予对应的水文地质参数。同时对矿区地下水径流循环条件,补排关系,充水水源,充水通道进行分析。使用FEFLOW软件建立三维模型,对矿区内地下水三维流畅进行模拟,预测矿区涌水量。同时以司家营铁矿水文地质资料为依据,讨论水文地质比拟法在马城铁矿矿坑涌水量预测中的应用。研究结果说明数值法与水文地质比拟法在-240开采巷道中的涌水量预测接近,两种方法都具有较高的可信度,可为矿山开采安全提供可靠的依据。In order to clarify the flow field of groundwater in the Ma Cheng iron ore mine,the numerical method and the hydrogeological comparison method were used to predict the amount of water in the mine pit.By analysing the lithological characteristics of the water-bearing media,the characteristics of pore and fissure development,the degree of weathering and the permeability of the rock strata in the region and mine area,CIS technology was used to obtain the elevation data of the top and bottom plates of the groundwater aquifers in the Ma Cheng mine area,and in the model,vertically upwards,the regional and mine area water-bearing systems were divided into nine layers from top to bottom,and the corresponding hydrogeological parameters were assigned to the different strata.The groundwater runoff circulation conditions,recharge and discharge relationships,water sources and channels are also analysed.A 3D model was created using FEFLOW software to simulate the 3D fluidity of groundwater within the mine site and predict the amount of water that will surge in the mine.Also based on the hydrogeological data of the Sijiaying iron ore mine,discuss the application of the hydrogeological comparison method in the prediction of water surges in the Ma Cheng iron ore pit.The results of the study illustrate the numerical method and hydrogeological comparison method in the-240 mining roadway in the prediction of water influx close,both methods have a high degree of confidence,can provide a reliable basis for mine mining safety.

关 键 词：马城铁矿 FEFLOW 水文地质比拟法 涌水量预计 

分 类 号：P641.463[天文地球—地质矿产勘探]