Application of new technology of high slope survey in hydraulic engineering:present situation,challenge and prospect

Lu Shusheng; Xiang Nengwu; Sun Yunzhi

doi:10.3969/j.issn.1000-1123.2024.14.010

Abstract：With the construction of a large number of ultra-high slope projects,the risk of high slope instability disasters has become increasingly prominent.Traditional investigation techniques can hardly meet the needs of refined and quantitative analysis,urgently requiring the development of new theories and technologies.Systematically reviews the key technological advances in the field of high slope investigation in recent years.In terms of remote sensing technology,UAV oblique photogrammetry and thermal infrared imaging provide new ways for fine characterization of slope geological structures;in terms of drilling technology,directional drilling,wireline coring,and CT scanning have realized oriented acquisition and fine structural characterization of drill cores;in geophysical exploration,joint inversion of multiple methods and collaborative inversion of multi-source data are research hotspots;new geotechnical testing technologies such as in-situ testing and CT scanning are constantly emerging.Meanwhile,finite element method considering the influence of structural planes,discontinuous deformation analysis,discrete element method based on dynamics,and multi-field coupled analysis provide more refined and quantitative tools for slope stability evaluation.In the future,the deep integration of modern information technologies such as big data analysis,artificial intelligence,Internet of Things,and 5G with traditional investigation techniques,as well as intellectualization and systematization,are important development directions.It is suggested to strengthen interdisciplinary research,develop multi-scale,whole-process,and quantitative high slope investigation theories and methods,and provide key technical support for high slope disaster prevention and control in water conservancy projects.