摘要
针对岩土参数数据有限导致边坡可靠度分析结果不准确这一问题,本文提出利用自助抽样法量化小样本数据导致的参数估计不确定性,并结合蒙特卡洛方法量化岩土参数小样本数据下边坡可靠度评估的准确性。结果表明,当岩土参数试验数据大于等于5个时,所提方法可以有效解决上述问题。
Aiming at the problem of inaccurate slope reliability analysis results due to limited geotechnical parameterdata,this paper proposed to use bootstrapping method to quantify the uncertainty of parameter estimation caused bysmall sample data,and combined Monte Carlo method to quantify the accuracy of slope reliability evaluation undersmall sample data of geotechnical parameters.The results show that the proposed method can effectively solve the aboveproblems,when the test data of geotechnical parameters is greater than or equal to five.
作者
王栋
WANG Dong(Shaanxi Railway and Underground Traffic Engineering Key Laboratory(FSDI),Xi’an 710043,China)
出处
《铁道建筑》
北大核心
2020年第8期106-110,共5页
Railway Engineering
基金
国家重点研发计划(2018YFC1504904)。
