中国安全科学学报 ›› 2025, Vol. 35 ›› Issue (S2): 203-209.doi: 10.16265/j.cnki.issn1003-3033.2025.S2.0029

• 防灾减灾技术与工程 • 上一篇    下一篇

基于边坡雷达监测的高陡边坡反倾岩层变形破坏特性研究

丘小强1(), 陈昌山2, 卢猛2,**(), 史帅阳2, 闫成伟2, 郭耀文1   

  1. 1 泽拉夫尚有限责任公司, 塔吉克斯坦 索格特州 7300
    2 中安国泰(北京)科技发展有限公司, 北京 102209
  • 收稿日期:2025-08-28 出版日期:2026-02-04
  • 通信作者:
    **卢 猛(1997—),男,贵州安顺人,硕士,助理工程师,主要从事露天矿山边坡监测方面的工作。E-mail:
  • 作者简介:

    丘小强 (1991—),男,福建龙岩人,硕士,工程师,主要从事露天采矿生产管理、技术管理及边坡管理等工作。E-mail:

    郭耀文 工程师

Study on deformation and failure characteristics of anti-dip rock strata on high and steep slopes based on slope radar monitoring

QIU Xiaoqiang1(), CHEN Changshan2, LU Meng2,**(), SHI Shuaiyang2, YAN Chengwei2, GUO Yaowen1   

  1. 1 Joint Venture Zaravshon Limited Liability Company, Soghat Region 7300, Tajikistan
    2 Cathay Safety Technology Co., Ltd., Beijing 102209, China
  • Received:2025-08-28 Published:2026-02-04

摘要:

为探究断层破碎带、软弱岩层和边坡渗水等多因素作用下高陡露天矿山边坡的变形破坏特性,以塔吉克斯坦某金属露天矿山南帮标高1 892~1 955 m高陡边坡滑坡为例,基于边坡合成孔径雷达对目标区域进行长期监测而获取的滑坡区域变形数据进行分析,揭示边坡变形破坏特点和滑坡破坏模式。结果表明:断层破碎带、软弱岩层和边坡渗水等多因素影响下边坡为渐进式变形破坏行为,在边坡渗水和施工作业的诱发因素作用下,南帮下部区域首先发生变形破坏,渐进式牵引上部坡面变形和倾倒破坏,造成牵引式-倾倒滑坡;倾层状边坡倾倒破坏过程分为坡址岩层变形弯曲、近坡顶渐进式弯曲破坏、超过屈服极限瞬间崩塌、稳定再平衡4个阶段。研究结果可为相似高陡边坡露天矿山的稳定性分析、滑坡预测提供数据支撑和参考。

关键词: 高陡边坡, 滑坡, 反倾岩层, 破坏模式, 边坡雷达

Abstract:

To investigate the deformation and failure characteristics of high and steep open-pit mine slopes under the combined effects of fault fracture zones, weak rock strata, and slope seepage, the landslide on the 1 892-1 955 m high and steep south slope of a metal open-pit mine in Tajikistan was taken as an example. The analysis was based on deformation data of the landslide area obtained from long-term monitoring of the target area using synthetic aperture radar on the slope, revealing the slope deformation and failure characteristics, as well as the landslide failure mode. The results indicate that under the influence of multiple factors such as fault fracture zones, weak rock strata, and slope seepage, the slope exhibits gradual deformation and failure behavior. Triggered by slope seepage and construction operations, the lower region of the south slope deforms and fails first, progressively pulling and causing deformation and toppling failure of the upper slope and resulting in a pull-topple landslide. The toppling failure process of dip slopes can be divided into four stages: deformation bending of the in-situ rock strata, progressive bending failure near the top of the slope, instantaneous collapse when exceeding the yield limit, and re-stabilization to equilibrium. The findings provide data support and references for stability analysis and landslide prediction of similar high and steep open-pit mine slopes.

Key words: high and steep slope, landslide, anti-dip rock stratum, failure mode, slope radar

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