摘要
水-岩系列(包括岩石、大坝混凝土以及坝基帷幕体等)相互作用(如溶解-沉淀作用)的状态具有不确定性。依据化学热力学的基本原理,建立了一个由功能函数组成的数学模型来进行水-岩作用随机模拟的可信度分析。实例研究表明,根据所建模型可以更有效地判定坝基有关部位的水-岩作用状态,即若某部位水-岩作用状态处于溶解的概率趋近于1,则其遭受侵蚀的可能性越大;反之,若某部位水-岩作用状态处于沉淀的概率趋近于1,则其遭受侵蚀的可能性越小。因而认为,采用该方法进行水-岩作用模拟,可望获得更多的反映水-岩作用状态的有用信息。
The state of interaction, such as dissolution-deposition, of water-rock series (including rock, dam concrete and curtain-grouting) is usually of the behavior of uncertainty. A mathematical model is set up for reliability analysis of stochastic modeling for water-rock interaction (WRI). A case study is carried out. The result shows that the state of WRI within the domain may be identified more effectively by using the model. The larger the probability of WRI under dissolution is, the bigger the possibility of the solid phases being eroded is, and the larger the probability of WRI under deposition is, the smaller the possibility of the solid phases being eroded is. It can be concluded that more useful information about WRI state can be obtained by the model.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2004年第12期2010-2014,共5页
Chinese Journal of Rock Mechanics and Engineering
基金
国家自然科学基金重点项目(50139030)资助课题。
关键词
水文地质
水-岩作用
随机模拟
饱和指数
可信度分析
Mathematical models
Probability
Reliability
Rocks
Saturation (materials composition)
Water
