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鉴于在现有的心墙坝渗流分析中很少考虑施工缺陷对渗流场的影响,通过引入随机数的概念,研究了不同的施工缺陷率和缺陷单元渗透系数等对坝体渗流场的影响。结果表明,施工缺陷的存在会在一定程度上降低心墙的挡水能力,同时会造成心墙局部渗透坡降产生较大改变,从而影响心墙的整体渗透稳定性,可见考虑随机施工缺陷将更加有利于实际工程的渗控分析。
Considering the influnce of construction defects on the seepage field, the concept of random number is introduced to study the influence of different construction defects and permeability coefficient of imperfect elements on the seepage field of dam. The results show that the existence of construction defects will reduce the water retaining capacity of the core wall to a certain extent, meanwhile it will lead to a large change of partial penetration gradient of the core wall, which will affect the overall penetration stability of the core wall. Therefore, considering the random construction defects More conducive to the actual project infiltration control analysis.