摘要
针对土工无侧限压缩试验及其试验参数离散性的特点,提出采用非参数假设检验与区间估计相结合的分析处理方法。具体过程以泥质板岩水泥改良土无侧限强度试验为例,采用K检验法,对大量数据(含水率wa、压实度Kh与强度)进行分析,得出这三种试验参数服从正态分布。接着,选取适合的区间估计方法,对改良土的强度进行区间估计,得出在置信水平1-α下,改良土能达到的最低强度^qα,从而得出所需要的较为可靠的结论。
The article mentions unconfined compression test and the parameters＇ dispersion of the test. It presents a method of statistics analysis. Taking unconfined compression strength test of argillaceous slate improvement with cement as an example, this method adopts K hypothesis testing to analyze a great number of test data （water content wa, compactness Kh and strength ） and concludes that the three parameters obey normally distribution. Then, the method takes interval estimation of slate＇s strength after improving and gets the minimum strength of improved slate in the confidence level 1--a. This method is applicable to analysis of parameters＇ dispersion in Geotechnical Engineering.
出处
《西部探矿工程》
CAS
2008年第11期1-5,共5页
West-China Exploration Engineering
基金
国家自然科学基金项目(项目批准号:50678177)
关键词
离散性参数
假设检验
区间估计
改良土
dispersive parameters
hypothesis testing
intervalestimation
improved soil
