无人机技术在超高位危岩勘查中的应用

Application of photographic technique by unmanned aerial vehicle to dangerous rock exploration

探讨无人机摄影技术在超高位危岩稳定性评价中的应用及勘查技巧。从无人机数据采集方法出发,分析了数据采集的基本原理,通过现场试验、理论分析等方法研究超高位危岩勘查航线规划技巧、空间几何参数的获取、岩层节理产状的识别。提出了危岩体结构面组合体积测量法。利用本文的无人机摄影测量技术在成昆铁路吉尔木隧道口的高陡边坡危岩体勘查中,可以获取空间几何特征测量、危岩体积、节理面产状等参数。无人机摄影测量技术在危岩体勘查和稳定性评价中具有高精度、高效率、非接触性、空间全面性等优势。

The application and exploration of photographic technique by unmanned aerial vehicle(UAV)to the stability evaluation of the high altitude dangerous rock are discussed.On the basis of data acquisition methods by UAV,the basic principle of data acquisition is analyzed.Through the analyses of field test and theoretical synthesis,the route planning technique,acquisition of geometric parameters of space,and identification of the occurrence of rock mass structure,a measurement method of combined volume of structural plane for dangerous rock is proposed.The practical application of the method to the Jiermu tunnel on the Chengdu-Kunming railway shows that UAV photographic technique can obtain such parameters as spatial geometry measurement data,rock volume,joint occurrence and other parameters of dangerous rock stability related to the evaluation of high altitude dangerous rock.It proves that the photographic technique by UAV has the advantages of high precision,high efficiency,non-contact and comprehensive space view in the exploration and stability evaluation for dangerous rock.