刘红岩,张光雄,甄一豪,刘强,马平,王福瑛,樊剑男,毛烽

• 1:中国地质大学(北京)工程技术学院
• 2:保利民爆哈密有限公司
• 3:北京交科公路勘察设计研究院有限公司
• 4:中国建设基础设施有限公司

摘要(Abstract)：

针对露天矿山反倾层状节理岩质边坡在循环爆破下的动力响应及累积损伤破坏问题展开数值模拟研究，首先基于前人模型试验采用3DEC软件建立了露天矿山反倾层状节理岩质边坡数值计算模型，并利用边坡动力响应、破坏模式及稳定性变化规律等模拟结果与已有模型试验结果进行对比，验证了数值模型的合理性。其次，通过参数敏感性分析研究了层面和节理面强度参数(即粘聚力和摩擦角)对边坡永久位移及稳定性的影响规律。发现监测点位移随着循环爆破次数的增加而增加，并在边坡发生破坏时出现陡升现象;随着层面和节理面强度的增加，监测点位移减小，边坡稳定系数增加。而随着循环爆破次数的增加，监测点位移基本呈波动式增加，边坡稳定系数则逐渐减小。该研究成果可为循环爆破作用下露天矿山反倾层状节理岩质边坡的稳定性评价提供理论支撑。

关键词(KeyWords)： 循环爆破;反倾层状岩质边坡;PGA;永久位移;边坡稳定性系数;数值模拟

Abstract:

Keywords:

基金项目(Foundation): 新疆维吾尔自治区“天池英才”领军人才计划项目(2023);; 巴里坤科技计划项目(2025);; 中建基础科技研发课题(CSCIC-2025-KT-5);; 地球深部探测与矿产资源勘查国家科技重大专项(2024ZD1004106)~~

作者(Author): 刘红岩,张光雄,甄一豪,刘强,马平,王福瑛,樊剑男,毛烽

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