[1]唐利斌.考虑高阶相关性的灌注桩沉降可靠度分析[J].福建工程学院学报,2020,18(01):53-56.[doi:10.3969/j.issn.1672-4348.2020.01.010]
　TANG Libin.Reliability analysis of settlement of cast-in-place piles considering high-order correlation[J].Journal of FuJian University of Technology,2020,18(01):53-56.[doi:10.3969/j.issn.1672-4348.2020.01.010]
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考虑高阶相关性的灌注桩沉降可靠度分析()
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《福建工程学院学报》[ISSN:2097-3853/CN:35-1351/Z]

卷:
第18卷
期数:
2020年01期
页码:
53-56
栏目:
出版日期:
2020-02-25

文章信息/Info

Title:
Reliability analysis of settlement of cast-in-place piles considering high-order correlation
作者:
唐利斌
中铁十九局第七工程有限公司
Author(s):
TANG Libin
7th Engineering Co., Ltd. of China Railway 19th Bureau Group
关键词:
高阶相关性;  灌注桩;  响应面法;  可靠度指标
Keywords:
high-order correlation;  cast-in-place piles;  response surface method;  reliability index
分类号:
TU4
DOI:
10.3969/j.issn.1672-4348.2020.01.010
文献标志码:
A
摘要:
为精准确定灌注桩的沉降，将桩周土体参数看作随机变量，并采用响应面法对桩基可靠度进行研究。由于，与桩沉降相关的多个土体参数之间高阶项可能存在高度相关性，基于高阶正交原理提出了新型非相关响应面法，以克服传统响应面法不考虑高阶参数高阶相关性的难题。结合实际工程计算发现，提出的新型响应面法比传统响应面法得到的值更为保守。可见，如果不考虑参数的高阶相关性，可能导致高估的计算结果。
Abstract:
In order to determine the settlement of cast-in-place piles accurately, the soil parameters around the piles were treated as random variables, and the response surface method was used to study the reliability of pile foundations. However, pile settlement is related to multiple soil parameters and the high-order terms of soil parameters may be highly correlated to each other. In order to overcome the problem that the traditional response surface method does not consider the high-order correlation of high-order parameters, a new non-correlation response surface method is proposed based on the principle of high-order orthogonality principle. Results in combination with actual engineering calculation show that the new response surface method is more conservative than the traditional one. It can be seen that if the high-order correlation of parameters is not considered, the results may be overestimated.

参考文献/References:

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更新日期/Last Update: 2019-02-25