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[1]吴波,许杰,黄惟,等.富水砂层刚度参数敏感性分析及地表沉降预测*[J].中国安全生产科学技术,2020,16(9):96-102.[doi:10.11731/j.issn.1673-193x.2020.09.015]
　WU Bo,XU Jie,HUANG Wei,et al.Sensitivity analysis of stiffness parameter and prediction of ground settlement for watered sandy stratum[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2020,16(9):96-102.[doi:10.11731/j.issn.1673-193x.2020.09.015]
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富水砂层刚度参数敏感性分析及地表沉降预测*
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
16
期数:
2020年9期
页码:
96-102
栏目:
职业安全卫生管理与技术
出版日期:
2020-09-30

文章信息/Info

Title:
Sensitivity analysis of stiffness parameter and prediction of ground settlement for watered sandy stratum
文章编号:
1673-193X(2020)-09-0096-07
作者:
吴波; 许杰; 黄惟; 韦汉; 智学民
（1.广西大学 土木建筑工程学院，广西 南宁 530004；
2.教育部工程防灾与结构安全重点实验室，广西 南宁 530004；
3.广西防灾减灾与工程安全重点实验室，广西 南宁 530004；
4.中国水利水电第一工程局有限公司，吉林 长春 130062)
Author(s):
WU Bo;  XU Jie;  HUANG Wei;  WEI Han;  ZHI Xuemin
(1.College of Civil Engineering and Architecture,Guangxi University,Nanning Guangxi 530004,China;
2.Key Laboratory of Disaster Prevention and Structural Safety of Ministry of Education,Nanning Guangxi 530004,China;
3.Key Laboratory of Disaster Prevention and Engineering Safety of Guangxi,Nanning Guangxi 530004,China;
4.Sinohydor Bureau 1 Co.,Ltd.,Changchun Jilin 130062,China)
关键词:
土体硬化模型; 富水砂层; 正交试验; 敏感性分析; 数学模型
Keywords:
hardeningsoil model;  watered sandy stratum;  orthogonal test;  sensitivity analysis;  mathematical model
分类号:
X941
DOI:
10.11731/j.issn.1673-193x.2020.09.015
文献标志码:
A
摘要:
为了在富水砂层地铁盾构施工中保证施工安全，控制地表沉降是其重要措施。依托福州地铁盾构工程项目，利用正交试验方法，使用有限元软件Plaxis 3D建立25个数值分析模型，采用反分析的方法，确定富水砂层土体硬化模型(HardingSoil model)主要刚度参数之间的关系；通过对各刚度参数进行极差分析与方差分析，确定土体硬化模型各刚度参数敏感性和显著性，建立刚度参数与地表沉降的数学模型。研究结果可以较好地对最大地表沉降进行预测，为富水砂层参数优化和盾构施工地表沉降预测提供理论基础。
Abstract:
In order to ensure the construction safety of metro shield construction in the watered sandy stratum,controlling the ground settlement is an important measure.Based on the shield construction project in Fuzhou Metro,25 numerical analysis models were established by using the finite element software PLAXIS 3D with the orthogonal test method.The relationship between the main stiffness parameters of the hardeningsoil model for the watered sandy stratum was determined by using the backanalysis method.The range analysis and variance analysis of each stiffness parameter were conducted to determine the sensitivity and significant of each stiffness parameter in the hardeningsoil model.Finally,a mathematical model of stiffness parameters and ground settlement was established.The results can predict the maximum ground settlement better,and provide theoretical basis for the parameters optimization of watered sandy stratum and the prediction of ground settlement in the shield construction.

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相似文献/References:

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备注/Memo

备注/Memo:
收稿日期： 2020-07-12
* 基金项目： 国家自然科学基金项目(51478118,51678164)；广西自然科学基金项目（2018GXNSFDA138009）；广西科技计划项目（AD18126011）；广西特聘专家专项资金项目(20161103)；广东省高等职业院校珠江学者岗位计划项目（2019）
作者简介： 吴波，博士，教授，主要研究方向为隧道与地下工程。
通信作者： 许杰，硕士研究生，主要研究方向为隧道与地下工程。
更新日期/Last Update: 2020-10-08