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1. 四川省公路规划勘察设计研究院有限公司
2. 西南交通大学土木工程学院
Published:2025
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张乐, 陈沛, 向波, et al. 基于运动学三维模拟的山区公路崩塌灾害损伤评价及治理[J]. Bulletin of Geological Science and Technology, 2025, 44(2): 104-115.
张乐, 陈沛, 向波, et al. 基于运动学三维模拟的山区公路崩塌灾害损伤评价及治理[J]. Bulletin of Geological Science and Technology, 2025, 44(2): 104-115. DOI: 10.19509/j.cnki.dzkq.tb20240068.
考虑斜坡地貌特征的运动学三维模拟是山区公路危岩崩塌灾害损伤评价的重要依据,其计算结果亦可支撑崩塌灾害治理。基于实地调查和无人机航测,分析了研究区危岩分布、物质组成和灾变特征,并采用RocPro3D软件进行危岩崩塌运动学三维模拟,对灾害损伤情况进行评价,并计算不同粒径落石和防护设施下的工程治理效果。结果表明,构造挤压和临空卸荷产生的组合节理切割形成了危岩,底部风化凹腔降低了危岩稳定性,后缘裂隙静水推力和裂隙渗水是危岩崩塌的典型诱因;危岩崩塌后运动速度和冲击能量先增大后减小,弹跳高度起伏波动且整体趋于降低;研究区危岩带对坡脚管理用房具有重大威胁,清方至危岩直径低于0.8m,并采用高6.0m、防护能级1000 kJ的被动防护网是有效的处置措施;危岩崩塌运动迹线空间分布局部集中位置应适当增强防护。运动学三维模拟能够获取危岩崩塌运动迹线、速度、能量、弹跳高度和单元密度等信息,突破了二维剖面计算在空间上的局限性,对灾害损伤评价和地质灾害防治具有重要意义。
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Roberto Sarro,Rosa María Mateos,Inmaculada García-Moreno,Gerardo Herrera,Paola Reichenbach,Luís Laín,Carlos Paredes.The Son Poc rockfall (Mallorca, Spain) on the 6th of March 2013: 3D simulation[J].Landslides,2014.
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卢彦丞,李军,梁风,史文兵,王军义.岩溶典型区崩塌落石被动防护网失效概率模拟[J].地质科技通报,2024(03).
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庞鑫,袁明,卢渊,杜文杰,万道春,李得,丁海锋,付晓东.基于无人机LiDAR仿地飞行技术的高陡边坡危岩体快速识别方法[J].地质科技通报,2023(06).
黄军朋,邓睿,凌斯祥,巫锡勇,何鑫,张伊飞.映秀2号隧道出口高陡斜坡落石运动学模拟和危险性评估[J].自然灾害学报,2023(03).
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