| 蓝龙飞.在冻融条件下某露天矿山边坡变形特征研究[J].矿产勘查,2024,15(S1):43-46 |
| 在冻融条件下某露天矿山边坡变形特征研究 |
| Study on deformation characteristics of an open-pit mine slope under freeze-thaw conditions |
| 投稿时间：2024-04-05 修订日期：2024-04-30 |
| DOI：10.20008/j.kckc.2024s1007 |
| 中文关键词: 冻融循环 边坡雷达 边坡变形 监测技术 |
| 英文关键词: freeze-thawing cycle slope radar slope deformation monitoring technology |
| 基金项目: |
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| 中文摘要: |
| 中国西北地区露天矿山边坡受高寒天气影响下长期处于冻融循环条件，边坡稳定性受到了破坏，为分析某露天矿山在冻融条件下边坡变形特征，本文结合矿山现有合成孔径边坡雷达监测技术，对该矿采场西帮边坡进行连续不间断监测。研究结果表明：在1—3月，边坡雷达数据显示边坡累计负向变形量处于加速上升趋势，根据现场巡查显示，裂隙主要集中在边坡斜面上，台阶和边坡均有沉陷现象。此时矿区处于解冻期间，冻融现场易造成裂隙进一步拓展，且易形成潜在滑移面，加大滑坡事故发生的风险。边坡雷达的实时监测数据可为矿方了解边坡状态提供技术支撑，为矿方安全生产和边坡治理提供基础依据及工程指导。 |
| 英文摘要: |
| The slope of open-pit mine in northwest China is in freeze-thawing cycle conditions for a long time under the influence of alpine weather， and the slope stability is destroyed. In order to analyze the slope deformation characteristics of an open-pit mine under freeze-thaw conditions， combined with the existing synthetic aperture slope radar monitoring technology of the mine， the continuous and uninterrupted monitoring of the west slope of the mine is carried out. The results show that from January to March， the radar data of the slope show that the cumulative negative deformation of the slope is in an accelerating upward trend. According to the on-site inspection， the cracks are mainly concentrated on the slope slope， and the steps and slopes have subsidence phenomenon. At this time， the mining area is in the thawing period， and the freeze-thaw site is easy to cause further expansion of cracks， and it is easy to form a potential slip surface， increasing the risk of landslide accidents. The real-time monitoring data of slope radar can provide scientific support for the mine to understand the slope state， and provide basic basis and engineering guidance for the mine safety production and slope treatment. |
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