路基工程Issue(4)：34-41,8.DOI:10.13379/j.issn.1003-8825.202402012
大巴山峡谷区高陡危岩发育特征与风险评价
Development Characteristics and Risk Assessment of High and Steep Dangerous Rocks in Daba Mountain Gorge Area Canyon Area
摘要
Abstract
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.关键词
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Key words
high mountain canyon/karst development/dangerous rockfall/oblique photography/non-contact survey/geological mapping/trajectory research/disaster prevention and reduction分类
交通运输引用本文复制引用
李松岩,李嘉雨,张可,陈亮,罗文豪..大巴山峡谷区高陡危岩发育特征与风险评价[J].路基工程,2024,(4):34-41,8.基金项目
中国中铁股份有限责任公司科技研究开发计划(2022-重大-01) （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) （2021-重点-02）
中铁二院科技开发计划(KSNQ232009) （KSNQ232009）
