Numerical simulation and safety distance analysis of slope instability of ionic rare earth tailings in different rainy seasons

IF 4.5 3区地球科学 Q1 GEOSCIENCES, MULTIDISCIPLINARY

Geomatics Natural Hazards & Risk Pub Date : 2023-11-07 DOI:10.1080/19475705.2023.2277127

Jiabo Geng, Zhisong Wang, Xiang Lan, Xiaoshuang Li, Dongming Zhang

{"title":"Numerical simulation and safety distance analysis of slope instability of ionic rare earth tailings in different rainy seasons","authors":"Jiabo Geng, Zhisong Wang, Xiang Lan, Xiaoshuang Li, Dongming Zhang","doi":"10.1080/19475705.2023.2277127","DOIUrl":null,"url":null,"abstract":"A significant number of ionic rare earth tailings slopes were generated during the process of rare earth mining and the factor of safety of these slopes continued to decrease under the action of rainfall. This study focussed on a specific tailings slope located in Dayu County, Ganzhou City. Through the utilization of MatDEM numerical simulation software, the variations in infiltration distribution and destabilization evolution of the tailings slope between different seasons were comparatively examined. The results indicated that during the rainy season (May to June), increased rainfall led to increased rate of water infiltration, consequently reducing the stability of the slope and exacerbating landslide damage. Furthermore, the study provided analyses of safety distances under different seasons of rainfall, taking into account the geographical location of the tailings slope in Dayu County, Ganzhou City, and the results of the analyses provided theoretical foundation into ensuring the safety of buildings and residents downstream of the slope.","PeriodicalId":51283,"journal":{"name":"Geomatics Natural Hazards & Risk","volume":"79 3","pages":"0"},"PeriodicalIF":4.5000,"publicationDate":"2023-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Geomatics Natural Hazards & Risk","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1080/19475705.2023.2277127","RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"GEOSCIENCES, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

Abstract

A significant number of ionic rare earth tailings slopes were generated during the process of rare earth mining and the factor of safety of these slopes continued to decrease under the action of rainfall. This study focussed on a specific tailings slope located in Dayu County, Ganzhou City. Through the utilization of MatDEM numerical simulation software, the variations in infiltration distribution and destabilization evolution of the tailings slope between different seasons were comparatively examined. The results indicated that during the rainy season (May to June), increased rainfall led to increased rate of water infiltration, consequently reducing the stability of the slope and exacerbating landslide damage. Furthermore, the study provided analyses of safety distances under different seasons of rainfall, taking into account the geographical location of the tailings slope in Dayu County, Ganzhou City, and the results of the analyses provided theoretical foundation into ensuring the safety of buildings and residents downstream of the slope.

查看原文本刊更多论文

不同雨季离子型稀土尾矿边坡失稳数值模拟及安全距离分析

稀土开采过程中产生了大量离子型稀土尾矿边坡，在降雨作用下，离子型稀土尾矿边坡的安全系数持续降低。本研究以赣州市大余县某尾矿坡为研究对象。利用MatDEM数值模拟软件，对比考察了不同季节尾矿库边坡入渗分布及失稳演化的变化规律。结果表明:在雨季(5 ~ 6月)，降雨增加导致入渗速率增加，从而降低了边坡的稳定性，加剧了滑坡破坏;考虑赣州市大余县尾矿库边坡的地理位置，对不同降雨季节下的安全距离进行了分析，分析结果为保障尾矿库边坡下游建筑和居民的安全提供了理论依据。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Geomatics Natural Hazards & Risk GEOSCIENCES, MULTIDISCIPLINARY-METEOROLOGY & ATMOSPHERIC SCIENCES

CiteScore

7.70

自引率

4.80%

发文量

117

审稿时长

>12 weeks

期刊介绍： The aim of Geomatics, Natural Hazards and Risk is to address new concepts, approaches and case studies using geospatial and remote sensing techniques to study monitoring, mapping, risk mitigation, risk vulnerability and early warning of natural hazards. Geomatics, Natural Hazards and Risk covers the following topics: - Remote sensing techniques - Natural hazards associated with land, ocean, atmosphere, land-ocean-atmosphere coupling and climate change - Emerging problems related to multi-hazard risk assessment, multi-vulnerability risk assessment, risk quantification and the economic aspects of hazards. - Results of findings on major natural hazards