水对尾矿坝稳定性的作用机理研究

通过对尾矿库实际发生事故的统计资料分析，大约l/3的事故是由于洪水原因造成的，尾矿坝作为尾矿库的主要组成设施，其稳定性更是与水密切相关。坝体稳定性的研究是一个非常复杂的问题，尤其是涉及到地下水位、降雨、物理力学参数等一系列难以准确确定的变量。滑坡、溃坝等事故的发生与水的作用有密切关系，已成为共识，但人们对这种关系的认识和理解仍很不充分。基于水在尾矿库安全运行中的重要作用，阐述了水作用于坝体边坡的两种途径，并以水在滑坡灾害中的作用为例，探讨了水对坝体稳定性的影响及其作用机理。

Mechanism of Water Effect on the Stability of Tailing Dam

According to the statistic data, of all the accidents, about 1/3 are caused by floodwaters. Tailing dam is a main facility of tailing reservoir and its stability is very relevant to water. The study of dam stability is a very complicated issue and involves a series of variables difficult to accurately determine such as underwater level, rainfall, mechanics parameters etc. As is commonly known, accidents such as landslide and dam failure are often closely related to water. However, such relation has not been fully recognized and understood. In view of the water's important effect on the safety operation of tailing dam, the paper describes the two ways in which water affect the dam slope and discusses water's effect in the dam stability and its mechanism in relation to the water role in landslide disaster.