DONG Haogang, CHEN Lide, HUANG Changsheng. 2010: INFLUENCE FACTORS AND STABILITY ASSESSMENT OF DANGEROUS ROCKS IN YUNYANG-JIANGJIN ON THREE GORGES RESERVOIR. JOURNAL OF ENGINEERING GEOLOGY, 18(5): 645-650.
    Citation: DONG Haogang, CHEN Lide, HUANG Changsheng. 2010: INFLUENCE FACTORS AND STABILITY ASSESSMENT OF DANGEROUS ROCKS IN YUNYANG-JIANGJIN ON THREE GORGES RESERVOIR. JOURNAL OF ENGINEERING GEOLOGY, 18(5): 645-650.

    INFLUENCE FACTORS AND STABILITY ASSESSMENT OF DANGEROUS ROCKS IN YUNYANG-JIANGJIN ON THREE GORGES RESERVOIR

    • From Yunyang to Jiangjin of the Three Gorges Reservoir,the geological environment is complicated. The dangerous rocks can be the main geological hazard. Rupture of the rocks is abrupt while calamity is catastropic.The stability factors of dangerous rocks are complicated and fuzzy.Their basic conditions to develop in the area classify as strong unloading agent by cutting of river or ravines lithological composition with weak or hard features.In this paper,seven factors are selected. They can influence the occurrence of fall and can be used as evaluation indices.They included phsiognomy,rock property,structure of rock mass,rock scale,hydrogeological conditions,weathering and land use type.A risk index model is obtained. Four grades are divided according to the dangerous rock stability index: stability,potential unstable,unstable,very unstable. Results of real examples are consistent with the survey.The results show that much more information are considered in the model and the data can be obtained easily.At the same time,the selection of assessment index and gradation is coincident with the fact.The model can provide significant reference to the survey and supervision for reinforcing dangerous rock in the Three Gorges Reservoir.
    • loading

    Catalog

      /

      DownLoad:  Full-Size Img  PowerPoint
      Return
      Return