[1]欧阳珊珊,姜立春,季皓宇,等.云南横断山区极端暴雨影响下高陡土质边坡渗流及稳定性*[J].中国安全生产科学技术,2026,22(4):37-45.[doi:10.11731/j.issn.1673-193x.2026.04.005]
OUYANG Shanshan,JIANG Lichun,JI Haoyu,et al.Seepage and stability of high-steep soil slopes under extreme rainfall events in the Hengduan Mountains of Yunnan[J].Journal of Safety Science and Technology,2026,22(4):37-45.[doi:10.11731/j.issn.1673-193x.2026.04.005]
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云南横断山区极端暴雨影响下高陡土质边坡渗流及稳定性*
OUYANG Shanshan,JIANG Lichun,JI Haoyu,et al.Seepage and stability of high-steep soil slopes under extreme rainfall events in the Hengduan Mountains of Yunnan[J].Journal of Safety Science and Technology,2026,22(4):37-45.[doi:10.11731/j.issn.1673-193x.2026.04.005]
《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]
- 卷:
- 22
- 期数:
- 2026年4期
- 页码:
- 37-45
- 栏目:
- 安全工程技术
- 出版日期:
- 2026-04-30
文章信息/Info
- Title:
- Seepage and stability of high-steep soil slopes under extreme rainfall events in the Hengduan Mountains of Yunnan
- 文章编号:
- 1673-193X(2026)-04-0037-09
- Keywords:
- Hengduan Mountains of Yunnan; high-steep soil slopes; extreme rainfall; numerical simulation; slope stability
- 分类号:
- X936
- 文献标志码:
- A
- 摘要:
- 为了研究极端暴雨影响下云南横断山区露天矿高陡土质边坡渗流及稳定性问题，基于土体饱和-非饱和渗流理论与边坡降雨入渗理论，采用Midas有限元分析软件，探明边坡土体体积含水率（θ）随降雨入渗时间（t）和入渗深度（h）的变化规律，计算边坡安全系数（Fs），揭示不同暴雨类型、暴雨强度（I）和持续时长（td）对高陡边坡稳定性的作用机制，并结合云南横断山区某露天钨矿边坡现场监测数据，验证边坡稳定性分析结果的合理性。研究结果表明：θ随着td的延长而急速升高，待土体饱和度达到90%后，θ增速减小，暴雨停止后，θ逐渐下降至稳定状态；θ随着h的增加而急速降低，雨后1~5 d内，θ随着h的增加呈现先增大后减小的趋势；受边坡采坑积水影响，边坡坡顶、坡腰和坡脚的θ呈现出差异性的空间分布规律。另外，与td相比，I对边坡稳定性的影响更大，I越大，td越长，Fs越小。相关研究成果为横断山区极端暴雨期间露天矿山安全生产提供理论指导与技术支撑。
- Abstract:
- In order to investigate the seepage behavior and stability of high-steep soil slopes in open-pit mines under extreme rainfall in the Hengduan Mountains of Yunnan Province,China,based on the saturated-unsaturated seepage theory and slope rainfall infiltration theory,numerical simulations are performed using the Midas finite-element software.The variation patterns of volumetric water content (θ) with rainfall infiltration time (t) and infiltration depth (h) are revealed,and the slope safety factor (Fs) is evaluated.The mechanisms by which different rainfall types,rainfall intensities (I),and rainfall durations (td) affect the stability of high-steep slopes are clarified.Field monitoring data from a soil slope in an open-pit tungsten mine in the Hengduan Mountains are further used to validate the rationality of the stability analysis results.The results indicate that θ increases rapidly with the extension of td,and its growth rate decreases once the soil saturation reaches 90%.After rainfall ceases,θ gradually declines to a stable level.θ decreases sharply with increasing h,and within 1~5 days after rainfall,θ first increases and then decreases as h increases.Due to water accumulation in the pit,θ shows distinct spatial distribution characteristics at the slope crest,mid-slope,and slope toe.In addition,compared with td,I exerts a stronger influence on slope stability; higher I and longer td lead to lower Fs.The findings provide theoretical guidance and technical support for safe production in open-pit mines during extreme rainfall events in the Hengduan Mountains.
参考文献/References:
［1］王发刚,虎万杰,邹平,等.基于临界慢化理论的露天矿边坡失稳预测方法研究与构建［J］.中国安全生产科学技术,2025,21(6):63-70.
WANG Fagang,HU Wanjie,ZOU Ping,et al.Research and development of open-pit mine slope instability prediction method based on critical slowing down theory ［J］.Journal of Safety Science and Technology,2025,21(6):63-70.
［2］LEROUX R,SEPEHRI M,KHAKSAR S,et al.Slopestability monitoring methods and technologies for open-pit mining:a systematic review ［J］.Mining,2025,5(2):32.
［3］龚礼岳,方如胜,胡献竹,等.基于IGA-AK代理模型的边坡安全系数预测与滑动面定位研究［J］.中国安全生产科学技术,2024,20(增刊1):169-178.
GONG Liyue,FANG Rusheng,HU Xianzhu,et al.Research on slope safety factor prediction and sliding surface localization based on IGA-AK surrogate model ［J］.Journal of Safety Science and Technology,2024,20(Supplement 1):169-178.
［4］JIANG L C，JI H Y，XUE L L.Shaft wall damage to high-depth inclined ore passes under impact wear behavior ［J］.Applied Sciences,2023,13(24): 13065.
［5］XU J S,DU X L,ZHAO X,et al.Analytical stability analysis of rainfall-infiltrated slopes based on the Green-Ampt model ［J］.International Journal of Geomechanics,2023,23(2):04022277.
［6］何正迎,黄雨.考虑降雨强度时间模式不确定性的边坡可靠度分析［J］.同济大学学报(自然科学版),2025,53(10):1527-1534.
HE Zhengying,HUANG Yu.Slope reliability assessment considering uncertainty associated with rainfall intensity temporal patterns ［J］.Journal of Tongji University (Natural Science Edition),2025,53(10):1527-1534.
［7］LAN H J,CHEN L S.Stability analysis of soft rock slope considering seepage softening and damage effects ［J］.International Core Journal of Engineering,2025,11(9):42-50.
［8］FU G C,XU Y R,LI W Q,et al.Probabilityassessment of potential landslides under the coupling of earthquake and rainfall—a case study of Zhouqu area,Gansu Province,China ［J］.Transactions in GIS,2025,29(5):70106.
［9］王龙,邓虎,周恩全,等.基于SMP准则的降雨条件下三维非饱和土边坡稳定性［J］.江苏大学学报(自然科学版),2025,46(6):731-738.
WANG Long,DENG Hu,ZHOU Enquan,et al.Three-dimensional stability of unsaturated soil slope under rainfall condition based on SMP criterion ［J］.Journal of Jiangsu University (Natural Science Edition),2025,46(6):731-738.
［10］王剑.考虑土体各向异性参数特征的路堑高边坡渗流及稳定性研究［J］.公路,2025,70(9):31-38.
WANG Jian.Study on seepage and stability of high cutting slopes considering the anisotropic parameter characteristics of soil mass ［J］.Highway,2025,70(9):31-38.
［11］SI J L,LIU S P,ZHOU X S,et al.A multi-scale hydro-mechanical framework for assessing rainfall-induced instability in fractured slopes ［J］.Results in Engineering,2025(28):107533.
［12］刘泰安,王兵,张继祥,等.降雨对松散土质边坡动静态力学性能劣化研究［J］.中国矿业,2025,34(增刊1):145-154.
LIU Taian,WANG Bing,ZHANG Jixiang,et al.A study on the degradation of dynamic and static mechanical properties of loose soil slopes induced by rainfall ［J］.China Mining Magazine,2025,34(Supplement 1):145-154.
［13］YIN H X,ZHANG J H,MONDAL S K,et al.Projected rainfall triggered landslide susceptibility changes in the Hengduan mountain region,southwest China under 1.5-4.0 C warming scenarios based on CMIP6 models ［J］.Atmosphere,2023,14(2):214.
［14］GU C,CHEN L,ZUO W Z,et al.Study on rainfall infiltration characteristics and instability mechanism of a lateritic soil landslide in Yunnan,China ［J］.Frontiers in Earth Science,2024(12):1478570.
［15］ZHENG Y X,HU Z P,WANG R,et al.Modified Green-Ampt model for infiltration analysis in loess area and its parameter determination and verification ［J］.Scientific Reports,2025,15(1):1738.
［16］彭振阳,黄介生,伍靖伟,等.基于分层假设的Green-Ampt模型改进［J］.水科学进展,2012,23(1):59-66.
PENG Zhenyang,HUANG Jiesheng,WU Jingwei,et al.Modification of Green-Ampt model based on the stratification hypothesis ［J］.Advances in water science,2012,23(1):59-66.
［17］ZHENG Y X,HU Z P,WANG R,et al.Slopestability analysis under heavy rainfall conditions based on a modified Green-Ampt model ［J］.Water Resources Management,2024,38(7):2627-2646.
［18］中国气象服务协会.短时气象服务降雨量等级:T/CMSA 0013—2019 ［S］.北京：中国气象服务协会，2019.
［19］张鲁渝,郑颖人,张建民.基于面向对象技术的几何建模及其在边坡稳定分析中的应用［J］.岩土工程学报,2009,31(1):129-134.
ZHANG Luyu,ZHENG Yingren,ZHANG Jianmin.2D geometric modeling based on object-oriented techniques and its application in slope stability analysis ［J］.Chinese Journal of Geotechnical Engineering,2009,31(1):129-134.
［20］冯天阔,李勇泉,李国维,等.梅州地区极端风雨条件下风化花岗岩收陡边坡稳定性分析［J］.中国安全生产科学技术,2025,21(9):77-84.
FENG Tiankuo,LI Yongquan,LI Guowei,et al.Stability analysis of weathered granite steep slopes in Meizhou area under extreme wind and rain conditions ［J］.Journal of Safety Science and Technology,2025,21(9):77-84.
［21］ZOU J Q,YANG F G,YUAN W H,et al.A kinetic energy-based failure criterion for defining slope stability by PFEM strength reduction ［J］.Engineering Failure Analysis,2023(145):107040.
［22］中华人民共和国住房和城乡建设部.非煤露天矿边坡工程技术规范:GB 51016—2014 ［S］.北京：中国计划出版社，2015.
相似文献/References:
备注/Memo
- 备注/Memo:
-
收稿日期： 2025-12-29
* 基金项目： 国家重点研发计划项目（2022YFC2903802）
作者简介： 欧阳珊珊，硕士研究生，主要研究方向为工程体系统性安全理论与方法。
通信作者： 季皓宇，博士研究生，主要研究方向为安全科学与灾害防治、安全系统工程、岩土工程。
