关键词: 结构面, 数字摄影测量, 露天矿, 岩质边坡, 生态重建

Abstract: About 80% of mineral resources need to be developed in the form of open-pit mining in our country,and the exposed slope formed in mine exploitation,has become the key difficulty which restricts the ecological restoration and reconstruction of the mining area. Hence,research on ecological restoration and reconstruction of open-pit mine rock slope plays an important role in the implementation of the construction of green mining in China. The digital identification of rock mass structure and ecological restoration of rock slope are demonstrated and the advantages and disadvantages of the reconstruction of rock slope ecological technology based on the relevant data collected from domestic and overseas are summarized. In conclusion, in the process of ecological reconstruction of rocky slope in open-pit mine,the influence of slope height,slope angle,geometry information of rock mass structure,rock weathering degree and rock mass quality grade on selection of the ecological reconstruction scheme selection should be fully considered,based on the investigation on geology,climate,soil,biology and rock mass quality,exploitation status and so on. The ecological reconstruction technique of rocky slope in open pit mine based on digital recognition of rock mass structure is proposed. Meanwhile,a vista of future with respect to the selection of suitable plants on slope and the long-term stability of ecosystem,the research and development of low-cost planting substrate for rock slope,the interaction mechanism of slope-planting substrate-root system and its overall mechanical stability are also provided.

Key words: Discontinuity, Digital photogrammetry measurement, Open-pit mine, Rock slope, Ecological reconstruction