The beneficial effect of the autogenous self‐sealing of cracks has been relied upon implicitly in the design of concrete water retaining structures for many years. The degree to which it can be relied upon to retard leakage through cracks in water retaining structures has, to date, not been quantified in probabilistic terms. Previous research identified the crack width as a critical parameter in the autogenous self‐sealing of flow through cracks in tension‐cracked, reinforced concrete. In this research, two experimental databases are collected and compiled, and are used to probabilistically model the prediction of initial flow through, and the subsequent leakage through tension cracks considering the effects of self‐sealing. The total leakage is characterized as a function of crack width range, identifying the notable effect of increasing crack width on increased leakage duration and magnitude. This research is a first step toward quantifying the achieved SLS reliability for water retaining structures.

中文翻译：

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考虑自发自密封的张裂钢筋混凝土挡水结构渗漏的概率模型

多年以来，隐式自密封裂缝的有益效果一直隐含在混凝土保水结构的设计中。迄今为止，依靠概率来阻止通过保水结构中的裂缝泄漏的程度尚未以概率的方式量化。先前的研究认为，裂缝宽度是张拉开裂的钢筋混凝土中通过裂缝的自流自密封的关键参数。在这项研究中，收集并编译了两个实验数据库，并考虑了自密封的影响，使用概率数据库对初始流过的预测以及随后通过张力裂缝的泄漏进行了概率建模。总泄漏的特征是裂纹宽度范围的函数，确认增加裂缝宽度对增加泄漏持续时间和幅度的显着影响。这项研究是迈向量化保水结构所达到的SLS可靠性的第一步。