【摘要】 施工项目质量等级是由分部工程的质量等级来保证,而分部工程的质量等级又是有所含分项工程的优良率来确定.本文通过建立分部分项工程的优良率概率模型,运用概率分析中的二项分布,从理论上阐明了每个分项工程的优良率与单位工程的质量等级的优良率的关系.更多还原

【Abstract】 Quality grade of construction project must be guaranteed through the quality of part engineering,which was determined by the excellent and good rate of subentry engineering.By applying binomial distribution of probability,setting up a mathematical model of the excellent and good rate on part and subentry engineering,the author in theory elucidated the relation between the excellent and good rate of quality grade on unit engineering and that of subentry engineering.更多还原