【作者】 孙娟娟； 王学良； 陈子干； 李丽慧； 涂新斌； 王彦兵； 廖小辉；

【Author】 SUN Juanjuan;WANG Xueliang;CHEN Zigan;LI Lihui;TU Xinbin;WANG Yanbing;LIAO Xiaohui;Key Laboratory of Shale Gas and Geoengineeering,Institute of Geology and Geophysics,Chinese Academy of Sciences;Graduate University of Chinese Academy of Sciences;Zhejiang Shenxianju Tourism Group Co.,Ltd.;State Power Economic Research Institute;Quzhou University;

【机构】 中国科学院地质与地球物理研究所中国科学院页岩气与地质工程重点实验室； 中国科学院大学； 浙江省神仙居旅游集团有限公司； 国家电网北京经济技术研究院； 衢州学院；

【摘要】 由于坡高峻陡,隐蔽性强等特点,高陡边坡危石的准确识别一直面临较大难题。作者利用无人机航摄、Agisoft PhotoScan等技术,建立高陡岩体的实景模型和三维信息数据。基于不共线的三点确定一个平面的原理,运用Visual Basic语言编写完成结构面产状计算程序。从而形成了准确识别岩体结构面并快速大量提取点云数据进行岩体结构面几何特征计算的方法,并选择浙江省神仙居景区某典型岩体结构边坡进行了应用分析。在确定危石之后,借助滚石运动模拟软件,对危石失稳后的运动特征进行了预测分析。结果表明:A-D处若发生滚落均会砸在游步道上,对游人生命安全构成严重威胁,建议尽快采取相应工程措施以降低风险水平。更多还原

【Abstract】 Due to the characteristics like high and steep slope and its strong concealment,the accurate identification of dangerous rocks in high and steep slope has always been confronting with great difficulty.The author uses technology like unmanned aerial vehicle aerial photography and Agisoft PhotoScan to establish the dioramas and three-dimentional data of the rock mass in high and steep slopes.Based on the principle that three points which are non-collinear can specify a plane,the author uses Visual Basic language to write a program in order to complete the calculation of structual plane’s occurrence,thereby a algorithm is formed to accurately indetify the structual plane of rock mass and massively and rapidly extract point cloud data to calclulate the geometrical characteristics of structual plane’s occurrence.And a typical rock mass slope in Zhejiang Immortals scenery area is selected as a case to analyze.After confirming the dangerous rocks,the motion features of the unstable rocks are predicted and analyzed with the assist of rolling rocks simulation software.The results show that once stones fall from A-D they will all hit directly in travel line,therefore cause great threaten to the security of travelers.It is advisable to take engineering measures as soon as possible to reduce risk levels.更多还原