湿式尾矿库浸润线解析解的修正研究  

A Study on the Correction of Analytical Solution for Wetted Tailings Reservoir Saturation Line

作　　者：胡凯文 刘佳航 李强 HU Kaiwen;LIU Jiahang;LI Qiang(School of Civil Engineering,Shijiazhuang Tiedao University,Shijiazhuang 050043,China;Key Laboratory of the Ministry of Education for Road and Railway Engineering Safety Assurance,Shijiazhuang Tiedao University,Shijiazhuang 050043,China)

机构地区：[1]石家庄铁道大学土木工程学院,河北石家庄050043 [2]石家庄铁道大学道路与铁道工程安全保障省部共建教育部重点实验室,河北石家庄050043

出　　处：《石家庄铁道大学学报（自然科学版）》2024年第2期119-126,共8页Journal of Shijiazhuang Tiedao University(Natural Science Edition)

基　　金：河北省重点研发计划(22375412D);河北省自然科学基金(E2019210304,E2021210092)。

摘　　要：浸润线是影响尾矿库稳定的主要因素之一,精确预测浸润线位置对于预防尾矿库失稳有重要意义。针对现有文献提出的湿式尾矿库的解析解,采用柯钦娜理论式和法尔科维奇理论式对下游边界条件方程进行了修正,结合修正后的上下游边界条件,求解了修正后的尾矿库浸润线的解析解。利用有限元软件建立底坡为0.05、0.1以及初期坝内坡比为1∶2、1∶1.5、1∶1、1∶0.577(60°)、1∶0.5的工况模型,将文中解析解与数值解、文献解析解进行了比对。结果表明,提出的解析解精度更高,适用性更广。The saturation line is one of the main factors affecting the stability of tailings ponds,and accurate prediction of the saturation line position is of great significance for preventing the instability of tailings points.In response to the analytical solutions proposed in existing literature for wet tailings ponds,the downstream boundary condition equations were modified using Kochina’s theory and Falkovich's theory.Combined with the modified upstream and downstream boundary conditions,the analytical solution for the revised saturation line of the tailings pond was obtained.A working condition model was established using finite element software with bottom slopes of 0.05 and 0.1,as well as initial slope ratios of 1∶2,1∶1.5,1∶1,1∶0.577(60°),and 1∶0.5.The analytical solution proposed in the paper was compared with numerical and literature analytical solutions,and the results showed that the proposed analytical solution had higher accuracy and wider applicability.

关 键 词：尾矿库 浸润线 修正解析解 渗流场 数值模拟 

分 类 号：TU411[建筑科学—岩土工程]