摘要
岩土力学参数的概率分布推断是岩土工程可靠性分析的关键步骤之一,选择和建立输入参数的概率模型直接影响可靠性最终的计算结果和精度.介绍了不同情况下确定岩土参数概率分布的各种推断方法和研究进展,主要包括小样本情况、较大样本及大样本情况、存在先验分布和现场有限小样本情况下的推断方法.详细介绍了笔者最近在这一领域内所做的工作,希望对这一领域内的研究工作起到一定的推动作用.
For probability analysis and design of geotechnical engineering, modeling and quantifying uncertainties of geotechnical mechanics parameters is one of the initial and essential steps, because many subsequent evaluations of risk and reliability depend on these quantifications. This paper presents some common methods to deduce the probability distribution of geotechnical mechanics parameters in four conditions including small sample,bigger sample, larger sample and existing prior distribution with finite sample data. Some ad- vances and research status of our work are also discussed and reviewed detailedly and some hopes are expressed to promote the future research of this field.
出处
《长沙理工大学学报（自然科学版）》
CAS
2007年第1期1-8,共8页
Journal of Changsha University of Science and Technology:Natural Science
基金
国家"973"计划资助项目(2002CB412703)
关键词
岩土工程
力学参数
随机变量
概率分布
可靠度
geotechnical engineering
mechanics parameters
random parameters
probability distribution
reliability
