[1]韩帅,惠淑君,孙强,等.基于地质安全评价的废弃矿山高陡边坡生态修复技术研究[J].华东地质,2023,44(02):216-227.[doi:10.16788/j.hddz.32-1865/P.2023.02.010]
　HAN Shuai,HUI Shujun,SUN Qiang,et al.Research on ecological restoration technology of high-steep slopes of abandoned mines based on geological safety evaluation[J].East China Geology,2023,44(02):216-227.[doi:10.16788/j.hddz.32-1865/P.2023.02.010]
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基于地质安全评价的废弃矿山高陡边坡生态修复技术研究()
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《华东地质》[ISSN:2096-1871/CN:32-1865/P]

卷:
44
期数:
2023年02期
页码:
216-227
栏目:
其他
出版日期:
2023-06-17

文章信息/Info

Title:
Research on ecological restoration technology of high-steep slopes of abandoned mines based on geological safety evaluation
作者:
韩帅1;  惠淑君2;  孙强1;  张帅3;  时磊1;  张颖1;  朱庆伟4
1. 中国地质调查局南京地质调查中心, 江苏 南京 210016;
2. 枣庄市城乡水务事业发展中心, 山东 枣庄 277800;
3. 中国地质科学院地质力学研究所, 北京 100081;
4. 浙江省测绘科学技术研究院, 浙江 杭州 310012
Author(s):
HAN Shuai1;  HUI Shujun2;  SUN Qiang1;  ZHANG Shuai3;  SHI Lei1;  ZHANG Ying1;  ZHU Qingwei4
1. Nanjing Center, China Geological Survey, Nanjing 210016, Jiangsu, China;
2. Zaozhuang Urban and Rural Water Affairs Development Center, Zaozhuang 277800, Shandong, China;
3. Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China;
4. Zhejiang Institute of Surveying and Mapping Science and Technology, Hangzhou 310012, Zhejiang, China
关键词:
废弃露天矿山; 生态修复; 边坡稳定性; 数值分析; 浙江省兰溪市
Keywords:
abandoned open-pit mine; ecological restoration; slope stability; numerical analysis; Lanxi;  Zhejiang Province
分类号:
X43P694P642
DOI:
10.16788/j.hddz.32-1865/P.2023.02.010
摘要:
新一轮找矿突破战略行动需要关注生态环境保护,废弃露天矿山生态修复则是矿地综合利用、生态环境保护的重要举措,其中高陡边坡修复是废弃矿山生态修复的重点与难点。为此,选择浙江省兰溪市灵洞乡洞源村废弃露天矿山开展了生态修复技术示范研究,在实地勘察、工程地质测绘与工程钻探的基础上,基于有限元方法,对边坡进行安全性数值分析,进而对高陡边坡实施生态修复。数值分析表明:边坡随着降雨的进行,其安全系数从1.458降至0.851,存在安全隐患;高陡边坡生态修复必须辅以削坡降低斜坡坡度、在边坡前缘实施挡土墙等工程手段才能达到安全性要求;合理排水可大大降低水对边坡安全性的影响,增强边坡的稳定性。经过生态修复设计后,暴雨条件下边坡安全系数显著提高且基本保持在1.7左右,达到了安全性的设计要求。该技术示范可为其他废弃矿山生态修复提供参考。
Abstract:
The new round of national strategic mineral prospecting requires to pay attention to ecological protection. The ecological restoration of abandoned open-pits is an important step in the comprehensive use of mine land and ecological environmental protection, among which the restoration of high-steep slopes is the focus and difficulty. To this end, an ecological restoration technology pilot study was carried out at the abandoned open pit mine in Dongyuan Village, Lingdong Township, Lanxi City, Zhejiang Province. Through field surveys, engineering geological mapping and engineering drilling, a numerical analysis of slope safety based on the finite element method was conducted for the ecological restoration of high-steep slopes. The analysis results show that the safety factor of the slope reduced from 1.458 to 0.851 with the rainfall, which makes it a safety hazard. Ecological restoration of high-steep slopes shall be complemented by engineering measures, including slope cutting to reduce the slope gradient and the construction of retaining walls at the leading edge of the slope, to meet safety requirements; Adequate drainage can greatly reduce the impact of water on slope safety and improve slope stability. With the ecological restoration design, the safety factor of the slope under heavy rainfall conditions significantly increased and almost maintained at around 1.7, which meets the safety design requirements. This technology demonstration can provide a reference for the ecological restoration of other abandoned mines.

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备注/Memo

备注/Memo:
收稿日期:2022-8-8;改回日期:2023-2-20。
基金项目:国家自然科学基金"台风-暴雨耦合作用下植被覆盖边坡稳定性响应与滑坡灾害触发机理研究(编号:42277126)"、国家重点研发计划"非显性滑坡隐患广域勘测与量化评价应用示范及技术标准(华东地区)(编号:2022YFC3003205)"和中国地质调查局"浙闽沿海台风暴雨型地质灾害精细调查与风险管控(编号:DD20221742)"项目联合资助。
作者简介:韩帅,1994年生,男,助理工程师,硕士,主要从事地质灾害、工程地质研究。Email:869086163@qq.com。
更新日期/Last Update: 1900-01-01