论文部分内容阅读
马河渗漏补给,是西石门铁矿矿山排水中的主要问题。本文试图探讨两个急需解决的问题:丰水年汛期矿区马河渗漏量计算;人工渠槽工程降低马河入渗量评价。在分析矿区岩性、地质构造和岩溶裂隙基础上,将马河划分为三种渗漏类型。根据1978年放水试验资料,运用有限元三维流计算方法,分别求得该三类型地段之渗漏补给强度。在此基础上求出1978年马河最大渗漏补给量。然后,以该补给量为基数,引入一种新的方法——变幅系数法,并辅之以回归分析,进一步求得了十年一遇的1973年和百年难遇的1963年马河渗漏补给量。在前面的有限元计算基础上,根据人工渠槽渗透性,降低渗漏补给强度值,求得人工渠槽能使马河渗漏补给量降低约一半。
Ma River leakage supply, is the West Shimen iron mine drainage in the main problems. This article attempts to explore two problems that need to be solved urgently: the calculation of the leakage of Ma River in mining area in Fengshui County; the evaluation of artificial canal project to reduce the infiltration of Ma River. Based on the analysis of the lithology, geological structure and karst fractures in the mining area, the Ma River is divided into three types of leakage. According to the drainage test data in 1978, using the finite element three-dimensional flow calculation method, the leakage recharge strength of the three types of lots was calculated respectively. On this basis, find out the maximum leakage recharge in 1978. Then, based on the recharge, the paper introduced a new method - the coefficient of hedging method, which was supplemented by regression analysis, and further found that in 1973 and once in a hundred years, the horse flood in 1963 Replenishment. On the basis of the former finite element calculation, according to the permeability of artificial channel, the leakage recharge intensity can be reduced, and the artificial channel can reduce the leakage recharge of Mahe by about half.