大巴山峡谷区高陡危岩发育特征与风险评价OA
Development Characteristics and Risk Assessment of High and Steep Dangerous Rocks in Daba Mountain Gorge Area Canyon Area
基于三维倾斜摄影采用数字地质调绘手段,研究西渝高铁明通隧道出口高陡危岩的发育特征及成因,基于无人机数字地质调绘成果对危岩区进行稳定性分析和落石运动轨迹数值模拟,分析危岩体崩落后的弹跳高度、运动速度、运动动能、运动距离.结果表明:WY01/02/04危岩带落石滚落到隧道洞口和#0桥台上的概率大,建议接长隧道明洞,设置桥墩防撞装置.
Based on 3D oblique photography and digital geological mapping method,the development characteristics and causes of high and steep dangerous rock at the exit of Mingtong tunnel of Xi'an—Chongqing High-speed Railway are studied.Based on the results of UAV digital geological mapping,stability analysis and numerical simulation of rockfall movement trajectory are carried out in the dangerous rock area,and the bounce height,movement speed,kinetic energy and movement distance of the dangerous rock mass after collapse are analyzed.The results show that the probability of rockfall in WY01/02/04 dangerous rock belt falling onto the tunnel entrance and #0 abutment is high.It is suggested to extend the open cut tunnel and set the bridge pier anti-collision device.
李松岩;李嘉雨;张可;陈亮;罗文豪
中铁二院工程集团有限责任公司,成都 610031中铁二院工程集团有限责任公司,成都 610031||四川省艰险山区轨道交通安全风险防控工程研究中心,成都 610031
交通运输
高山峡谷岩溶发育危岩落石倾斜摄影非接触式勘察地质调绘轨迹研究防灾减灾
high mountain canyonkarst developmentdangerous rockfalloblique photographynon-contact surveygeological mappingtrajectory researchdisaster prevention and reduction
《路基工程》 2024 (004)
34-41 / 8
中国中铁股份有限责任公司科技研究开发计划(2022-重大-01);中国中铁股份有限责任公司科技研究开发计划(2021-重点-02);中铁二院科技开发计划(KSNQ232009)
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