论文部分内容阅读
张疃铁矿位于一冲积洪积扇上,矿床为鞍山式铁矿,矿坑充水主要是上覆三层富水砂砾卵石、砂层。我们用有限单元法进行了这个矿的矿坑涌水量预测,得到了较好的效果。通过研究,建立了复杂的三层含水层(夹两个弱透水层)越流的数学模型,构造了相应的泛函;用“第三类边界”近似的表征了“无限边界”;采用一维数组压缩存储下三角系数矩阵纯非零元素方法辅之以超松弛迭代解法和适当在调的措施在中小型计算机上实现了1006阶大型线性方程组的形成和求解。这个计算对于同类型矿区的矿坑涌水量预测以
Zhang 疃 iron ore is located in an alluvial-accumulating fan, the deposit is Anshan-type iron ore, mine water is mainly covered with three layers of water-rich gravel pebbles, sand. We use the finite element method for the prediction of the mine pit water inflow, get better results. Through the research, a mathematical model of flow in complicated three-layer aquifers (sandwiching two aquitards) is established and the corresponding functional is constructed. The “infinite boundary” is characterized by “the third type of boundary” The method of pure non-zero elements of the triangular coefficient matrix under the compressed storage of the array is complemented by the over-relaxation iterative method and the appropriate adjustment measures. The formation and solution of the 1006-order large linear system of equations are realized on small and medium-sized computers. This calculation for the same type of mine pit water inrush forecast