【摘要】 指出可能影响混凝土拱坝安全的关键点为拱坝坝肩的稳定。阐述坝肩稳定评价中主要包括的4个方面内容:坝肩岩体的模拟方式,坝体和坝肩的联合作用,失稳机理和失稳判据。从这4个方面详细阐述了岩体的模拟方法、坝肩安全稳定分析方法和判断准则,以及失稳机理,并对各个方面加以简要评价,指出了目前较为适用的方法和准则,给出了一些建议。更多还原

【Abstract】 It is pointed out that the stability of the dam abutment is a key factor affecting the safety of concrete arch dams.Its stability evaluation should be performed from the following aspects,i.e.the method of rock simulation,the co-action of the dam and abutment,the mechanism of abutment instability,and the criterion of instability.Based on a detailed analysis and brief evaluation,some effective methods and critera are given,and some suggestions are made.更多还原