Simulation of Dangerous Rock Movement and Risk Zoning Based on UAV Model
ZOU Yang1, LIU Yi1, LI Jianqiang1, FENG Tao1, ZHANG Guangze1, ZOU Fei2
1. China Railway Eryuan Engineering Group Co. Ltd, Chengdu, Sichuan 610031, China; 2. Chengdu Industry and Trade College, Chengdu, Sichuan 611731, China
Abstract：Research purposes:The Jinsha River area at the southeast edge of the Qinghai-Tibet Plateau is characterized by high elevation, frequent crustal activity, broken rock mass, large coastal topographic relief and high dangerous rock development. The traditional geological survey means are hard to reach by manpower, with high safety risks and low efficiency. Therefore, it is urgent to carry out relevant research and practice on non-contact measurement, motion simulation and risk zoning technology, and explore a set of dangerous rock and rockfall investigation and risk assessment analysis system suitable for plateau and mountain areas. Research conclusions:(1) In view of the adverse environmental factors such as high altitude, low temperature and low oxygen, undulating terrain, high wind speed and so on, the non-contact UAV platform and fine modeling technology have been selected to replace the traditional survey work mode in the plateau mountain area. (2) The real terrain surface features of high steep slope and high dangerous rock fall area are obtained, which can realize the interpretation and identification of high dangerous rock and rockfall on high steep slope, quantitative extraction of geometric information of rock mass structure, 3D rolling motion simulation and feature analysis, and temporal and spatial risk zoning of rockfall. (3) Through a large number of application practices, this new survey and evaluation system can greatly improve the survey accuracy and efficiency, ensure the safety of survey, design and construction, and the research results can provide reference for the survey work in plateau and mountain areas.
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2023, Vol. 40 
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