浸矿作用下离子型稀土强度弱化及滑坡研究进展  

Reviews of Ionic Type Rare Earth Orebody Strength Weakening and Landslide under Ore Leaching

作　　者：郭钟群[1,2] 周尖荣 徐虹 周可凡 金解放 GUO Zhong-qun;ZHOU Jian-rong;XU Hong;ZHOU Ke-fan;JIN Jie-fang(School of Civil Engineering and Surveying&Mapping Engineering,Jiangxi University of Science and Technology,Ganzhou 341000,China;Jiangxi Key Laboratory of Environmental Geotechnology and Engineering Disaster Control,Ganzhou 341000,China)

机构地区：[1]江西理工大学土木与测绘工程学院,江西赣州341000 [2]江西省环境岩土与工程灾害控制重点试验室,江西赣州341000

出　　处：《稀土》2022年第3期9-22,I0003,共15页Chinese Rare Earths

基　　金：国家自然科学基金项目(52004106)。

摘　　要：离子型稀土原地浸矿过程中,由于受到浸矿液渗流作用、化学置换作用、降雨和干湿循环等因素的影响,矿体强度将发生不同程度弱化。结合国内外学者对离子型稀土浸矿过程中强度特性的研究成果,对浸矿液渗流作用、化学置换作用、降雨和干湿循环作用对离子型稀土矿体强度影响规律进行归纳总结,分析了矿体颗粒孔隙结构、土体含水率、基质吸力等参数与强度指标黏聚力c、内摩擦角φ之间的关系,综述了离子型稀土矿山边坡稳定性的影响因素,提出了矿山滑坡相关防控措施,并对今后的研究思路进行展望。研究结果为离子型稀土强度弱化机理及边坡稳定性分析提供参考,有助于离子型稀土安全高效开采。In the process of ionic type rare earth ore in-situ leaching, the strength of orebody will be weakened in varying degrees due to the influence of leaching solution seepage, chemical replacement of leaching solution, rainfall and dry-wet cycle. Based on the research results of domestic and foreign scholars on the strength characteristics of ionic type rare earth ore in the process of leaching, the effects of leaching solution seepage, chemical replacement, rainfall and dry-wet cycle on the strength of ionic type rare earth orebody are summarized in this paper. And the relations between the parameters such as orebody particle pore structure, soil water content, matrix suction and strength index cohesion c and internal friction angle φ are analyzed. The effects of different factors on the slope stability of ionic type rare earth mines are summarized, the relevant prevention and control measures of landslides are put forward, and the future research ideas are prospected. The research results provide a reference for the strength weakening mechanism and slope stability analysis of ionic type rare earth orebody, and are helpful to the safe and efficient mining of ionic type rare earth deposits.

关 键 词：离子型稀土 原地浸矿 强度弱化 边坡稳定性 

分 类 号：TD865[矿业工程—金属矿开采]