新疆某砂岩型铀矿地浸对采区外围地下水的影响

砂岩型铀矿地浸开采过程中溶浸液向采区外围运移是一个倍受关注的问题1]。本文对新疆某砂岩型铀矿地浸采区开拓前及开采期间地下水渗流场及地下水中与酸法地浸相关的主要化学组分进行了监测和对比分析,以研究地浸开采过程中溶浸液对采区外围地下水渗流场的影响及溶质运移过程。结果表明,地浸新采区投入运行后4个月内,采区外围60m范围内含矿含水层地下水渗流场发生了明显的改变,采区外缘下注的部分溶浸液在所形成的较强的地浸地下水渗流场驱动下向周围发生了一定程度的扩散运移。

A CERTAIN SANDSTONE TAPE URANIUM DEPOSITS IN XINJIANG IN-SITU LEACHING MINING PRODUCTION FOR THE STUDY ON THE IMPACT OF PERIPHERAL GROUNDWATER

Sandstone type uranium deposit in the process of in-situ leaching mining leaching solution mining to peripheral migration is a problem widely concerned 1] . In this paper, a certain sandstone type uranium deposits in Xin Jiang in-situ leaching mining development before and during the exploit- ation of groundwater seepage field and groundwater and acid method to dip related main chemical components on the monitoring and analysis, so as to research in in-situ leaching mining process of leaching solution mining peripheral groundwater seepage field and the influence of solute transport process. The results showed that the ground immersion new mining within 4 months after the port is put into operation, mining peripheral 60 m range containing ore aquifer groundwater seepage field changed obviously change, mining area on the outer part of the leaching solution in formation of strong dipped groundwater seepage field under the drive to place around a certain degree of diffusion migration.