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泄洪雨雾入渗导致的边坡稳定问题随着高坝大库的建设越来越突出,对此类问题的研究和认识大多停留在对岩土体强度降低和荷载增加两者之一上,对渗流和应力变形的耦合作用认识和应用不足。本文通过理论分析,对泄洪雨雾入渗的渗流分析中入渗边界条件重新做了界定,并指出了存在的问题;同时对应力变形计算中渗流荷载的增加和岩土体在非饱和区的强度变化,提出了自己的观点,并指出存在的误区。最后作者通过某一水电工程泄洪雾化区边坡的渗流和应力变形作了计算,得到了合理的计算结果。
Slope stability problems caused by flood and fog infiltration As the construction of large dams and reservoirs becomes more and more prominent, the research and understanding of such problems mostly remain on either the strength reduction of rock mass or the increase of load. The coupling between seepage and stress deformation is not well understood and applied. In this paper, through theoretical analysis, infiltration boundary conditions in flood and rain infiltration seemingly re-define the boundary conditions, and pointed out the existing problems; at the same time, the increase of seepage load and the strength of rock mass in unsaturated zone Change, put forward their own point of view, and pointed out the existence of errors. Finally, the author calculated the seepage and stress deformation of the slopes in the discharge area of a hydropower project, and obtained the reasonable calculation results.