| 高继章.降雨入渗下矿山破裂结构岩质边坡滑坡成灾机理分析[J].矿产勘查,2025,16(9):2178-2184 |
| 降雨入渗下矿山破裂结构岩质边坡滑坡成灾机理分析 |
| Analysis on the disaster mechanism of rock slope landslides with fractured structures in mines under rainfall infiltration |
| 投稿时间：2025-05-29 |
| DOI：10.20008/j.kckc.202509012 |
| 中文关键词: 降雨入渗 矿山 岩质边坡 滑坡变形 位移-渗流耦合 成灾机理 |
| 英文关键词: rainfall infiltration mines rock slope landslide deformation displacement seepage coupling di-saster mechanism |
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| 摘要点击次数: 353 |
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| 中文摘要: |
| 降雨入渗可造成边坡失稳，引起巨大经济损失。本文以布沼坝露天矿西帮局部边坡为对象，针对其建立平面计算模型，采用数值模拟分析对降雨入渗下矿山破裂结构岩质边坡滑坡成灾机理进行了研究，提出边坡位移场-渗流场耦合模型，探明连续降雨条件下边坡滑坡位移场演化机制。结果表明:连续降雨引起渗流压明显增加，对边坡内部结构产生弱化作用，逐渐引起滑坡变形发生，边坡中下部位移不断增加，在 5h降雨后位移达到 11 mm，边坡出现滑动行为，降雨持续入渗到土体后，边坡坡脚剪切破坏严重，最终造成边坡底部发生滑塌。总的来看，降雨入渗条件下边坡位移、渗透压、剪切破坏三者的共同作用导致了滑坡灾害的发生。 |
| 英文摘要: |
| Rainfall infiltration can cause slope instability and cause huge economic losses. Taking the localslope of the western slope of the Bunnuoba open-pit mine as the object, a plane calculation model is established forit in this paper. Numerical simulation analysis is used to study the disaster mechanism of rock slope landslides withfractured structures under rainfall infiltration. A slope displacement field seepage field coupling model is proposedto explore the evolution mechanism of slope displacement field under continuous rainfall conditions. The resultsshow that continuous rainfall causes a significant increase in seepage pressure, which weakens the internal structureof the slope and gradually causes landslide deformation. The displacement in the middle and lower parts of the slopecontinues to increase, reaching 11mm after 5 hours of rainfall. The slope exhibits sliding behavior, and after continu-ous rainfall infiltrates the soil, the shear failure at the foot of the slope is severe, ultimately leading to collapse at thebottom of the slope. Overall, the combined effect of slope displacement, seepage pressure, and shear failure underrainfall infiltration conditions has led to the occurrence of landslide disasters. |
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