Based on deterministic method,an incipient bottom velocity formula of cohesionless uniform sediment is established,which is validated with measured velocity data and proved to agree well with experimental data.
采用确定性分析方法,建立无黏性均匀沙起动流速公式,并用实测资料对其进行验证。
According to the mechanical condition of incipient motion of the non cohesive uniform sediments and using some results of other researches, the relationship between incipient probability and flow condition is established.
根据无粘性均匀沙起动的力学条件，在已有研究成果基础上，推导出泥沙起动概率与水流条件之间的关系式，得到考虑起动概率的起动切应力及起动流速公式，并将起动条件与起动标准联系分析。
With non cohesive uniform sediment as example, based on mechanical condition of suspension critical for non cohesive uniform sediment, taking the suspension probability into account, this paper analysises suspension critical condition for non cohesive uniform sediment.
以无粘性均匀沙为例，从泥沙临界起悬的力学条件出发，在考虑起悬概率的基础上，对泥沙起悬条件进行了进一步研究，建立了一个能够概括各家成果的统一的泥沙起悬条件表达式，为合理选用有关泥沙起悬条件计算公式提供了便利。