[1]吴 强,张 强,周 洋,等.上覆堆载作用下砂性地层埋入式筒仓浮力分析[J].华南地震,2024,(01):126-132.[doi:10.13512/j.hndz.2024.01.15]
 WU Qiang,ZHANG Qiang,ZHOU Yang,et al.Buoyancy Analysis for Buried Silo in Sandy Stratum Under Overlying Surcharge Load[J].,2024,(01):126-132.[doi:10.13512/j.hndz.2024.01.15]
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上覆堆载作用下砂性地层埋入式筒仓浮力分析()
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华南地震[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2024年01期
页码:
126-132
栏目:
土木工程防震减灾
出版日期:
2024-03-30

文章信息/Info

Title:
Buoyancy Analysis for Buried Silo in Sandy Stratum Under Overlying Surcharge Load
文章编号:
1001-8662(2024)01-0126-07
作者:
吴 强1张 强2周 洋1宋 铭1王 楷3
1.河南工业大学,郑州 450001;2.河南工大设计研究院,郑州 450001;3.中建八局一公司中原公司,郑州 450003
Author(s):
WU Qiang1ZHANG Qiang2ZHOU Yang1SONG Ming1WANG Kai3
1.Henan University of Technology , Zhengzhou 450001, China;2.Henan University of Technology Design and Research Academy, Zhengzhou 450001, China;3.Zhongyuan Company of The First Company of China Construction Eighth Engineering Division Co.,Ltd., Zhengzhou 450003, China
关键词:
模型试验埋入式粮仓浮力折减系数上覆堆载
Keywords:
Model testBuried siloBuoyancyReduction factorOverlying load
分类号:
U231
DOI:
10.13512/j.hndz.2024.01.15
文献标志码:
A
摘要:
河南是国家粮食三大主产区之一,实现粮食大规模的绿色储粮利国利民,地下/半地下粮仓具有储量大、低温等优点是绿色储粮的理想仓型之一,但地下大体积结构抗浮设计问题突出。以入地式筒仓为研究对象,考虑仓周上覆堆载开展模型试验和理论研究,理论反演分析筒仓上浮时的临界状态对应的浮力折减系数。研究表明:随着筒仓周边施加的均布荷载不断增加,仓壁受土体侧摩阻力也逐渐增加,抑制仓体上浮;浮力在土体中存在着一定的折减。在饱和粗砂土质中,浮力折减系数估算为0.945;增加上覆荷载可以提升筒体埋深的设计潜力,为低温、绿色储粮提供更大可能。
Abstract:
Henan is one of the three major grain producing areas in China,and the realization of large-scale green grain storage is beneficial to the country and the people. The underground or semi-underground grain storage has the advantages of large reserves and low temperature, which is one of the ideal types of green grain storage, but the anti-floating design of underground massive structure is prominent. This study focuses on the buried cylindrical silo as the research object, conducts model experiments and theoretical research with considering the overlying load around the silo, and analyze the buoyancy reduction coefficient corresponding to the critical state of the silo floating by theoretical inversion. The research indicates that as the uniformly distributed load around the silo continues to increase, the lateral friction resistance of the silo wall to the soil also gradually increases, which inhibitis the upward flotation of the silo. Additionally,there is a certain reduction of buoyancy in soil. In saturated coarse sand,the estimated buoyancy reduction coefficient is 0.945. Increasing the overlying load can enhance the design potential of the buried depth of silo and provide greater possibilities for low-temperature and green grain storage.

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备注/Memo

备注/Memo:
收稿日期:2023-12-21
基金项目:住房与城乡建设部科技计划资助项目(2017-k10-006)
作者简介:吴强(1970-),男,高级工程师,硕士,主要研究方向为储粮结构设计、筒仓基础加固。
通信作者:周洋(1988-),男,副教授,博士,主要研究方向为结构工程、岩土工程、地下仓储等。E-mail:robertzhouy@haut.edu.cn
更新日期/Last Update: 2024-03-30