摘要
为解决膨胀土胀缩等级分类中存在的指标互不相容问题,提出了一种新的综合评价方法。该方法构造了一种区间关联函数,根据分类特征体现度越大、权重越大的权重计算原理,给出了一种新的变权计算方法,将单指标关联函数的最大值作为评价类的靶心坐标,根据样本与靶心的贴近度,对样本进行分类。结果表明:该方法能较好地解决指标间的互不相容性问题,且便于计算,其结论更合理、更符合实际。
In order to solve the mutually exclusive problem in indices of expansive soil classification, a new comprehensive evaluating method is given. This method constructs a new interval incidence function based on the principle of weight calculation which is that the clearer the symptom of the classified characteristic is, the bigger the weight is. A new computing method of variable weight is given according to the law that the maximum value of incidence function for single index is used to be the target, so the samples can be categorized on the basis of the degree of approaching between samples and targets. An example is presented to verify the method. The results show that this method can solve the mutually exclusive problem efficiently, and it is convenient for calculating, its conclusion is more reasonable and more accurate. 4 tabs, 9 refs.
出处
《长安大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2008年第4期32-34,38,共4页
Journal of Chang’an University(Natural Science Edition)
关键词
道路工程
路基
膨胀土
关联函数
靶心
贴近度
变权
road engineering
subgrade
expansive soil
incidence function
target
approaching
variable weight
