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中文摘要：
在总结国内外关于水力劈裂机理分析及数值模拟方法的基础上，将所提出的渗透弱面水压楔劈作用模型引入基于比奥固结理论的有效应力法，采用弥散裂缝理论描述水力劈裂裂缝的发展过程，建立了用于描述水力劈裂发生和扩展过程的数学模型及有限元计算模式。模拟了挪威Hyttejuvet坝水力劈裂破坏的发生过程。计算结果表明：本文建立的数学模型和相应计算模式能够较好地模拟土石坝水力劈裂的破坏过程，可用于土石坝工程的安全性评价。
英文摘要：
The mechanism and numerical simulation of hydraulic fracturing were summarized and the model on wedging action in weak link was proposed in the framework of the effective-stress method based on Biot＇s consolidation theory. Then the smeared cracking theory was applied to simulate the process of hydraulic fracturing, while the fracture model and the calculation method were established to analyze the opening and expanding of hydraulic fracturing. As a case study, the process of hydraulic fracturing of Hyttejuvet Dam in Norway was analyzed and it was indicated that the fracture model and the numerical method could simulate well the behavior of hydraulic fracturing and could be applied to the safety assessment of earth dams.
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