[1]汪智慧,辛全明,孔志军,等.长期堆载预压处理软土地基效果评价[J].华侨大学学报(自然科学版),2024,45(2):241-247.[doi:10.11830/ISSN.1000-5013.202401014]
　WANG Zhihui,XIN Quanming,KONG Zhijun,et al.Evaluation of Long-Term Preloading Effects on Soft Soil Foundation[J].Journal of Huaqiao University(Natural Science),2024,45(2):241-247.[doi:10.11830/ISSN.1000-5013.202401014]
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长期堆载预压处理软土地基效果评价()
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《华侨大学学报（自然科学版）》[ISSN:1000-5013/CN:35-1079/N]

卷:
第45卷
期数:
2024年第2期
页码:
241-247
栏目:
出版日期:
2024-03-20

文章信息/Info

Title:
Evaluation of Long-Term Preloading Effects on Soft Soil Foundation
文章编号:
1000-5013(2024)02-0241-07
作者:
汪智慧1;  辛全明1; 2;  孔志军2;  蔡奇鹏2;  佘小康1;  曹洋1;  涂兵雄2
1. 中国建筑东北设计研究院有限公司, 辽宁 沈阳 110006;2. 华侨大学 土木工程学院, 福建 厦门 361021
Author(s):
WANG Zhihui1;  XIN Quanming1; 2;  KONG Zhijun2;  CAI Qipeng2;  SHE Xiaokang1;  CAO Yang1;  TU Bingxiong2
1. China Northeast Architectural Design and Research Institute Limited Company, Shenyang 110006, China; 2. Collage of Civil Engineering, Huaqiao University, Xiamen 361021, China
关键词:
长期堆载预压;  固结沉降;  软土地基;  有限元法;  双曲线法
Keywords:
long-term preloading;  consolidation settlement;  soft soil foundation;  finite element method;  hyperbolic method
分类号:
TU472
DOI:
10.11830/ISSN.1000-5013.202401014
文献标志码:
A
摘要:
为评估某园区10 a长期堆载预压后,场地后续沉降对拟建管线的影响,通过室内试验和现场试验对堆载预压处理后的场地进行系统评价,分别采用双曲线法与有限元法对后续沉降进行预测。结果表明:场地堆载预压10 a后各地层物理力学参数明显改善,但其中淤泥层性质相对较差,是场地后续沉降发生的主要地层;经过10 a堆载,场地主固结沉降基本完成,固结度达到95.5%,说明长期堆载预压效果较好;对于堆载多年后的场地,在进行后续沉降数值计算时,采用弹性模型并选用现场试验获得的参数进行计算,计算结果与实测数据较好吻合,场地剩余平均沉降量在15.4 cm左右;园区道路管线可采取常规预防措施。
Abstract:
In order to evaluate the effects of ground subsequent settlement on newly constructed pipeline after 10 years of long-term preloading, systematic evaluation of the site is conducted by indoor and on-site tests, and hyperbolic method and finite element method are used to predict subsequent settlement, respectively. The results show that the physical and mechanical parameters of each layer improve significantly after 10 years of preloading on the site, but the properties of the silt layer are relatively poor, which is the main stratum for subsequent settlement of the site. The main consolidation has basically completed after 10 years of preloading, with a consolidation degree of 95.5%, which indicates that the effect of long-term preloading is preferable. For the site loaded for many years, an elastic model is used for subsequent settlement numerical calculations, and parameters obtained from on-site experiments are selected for calculation, the calculation results are in good agreement with the measured data, and the remaining average settlement of the site is about 15.4 cm. Conventional preventive measures can be taken for road pipelines in the park.

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相似文献/References:

[1]苏世灼.固结沉降计算程序[J].华侨大学学报(自然科学版),1997,18(1):62.[doi:10.11830/ISSN.1000-5013.1997.01.0062]
　Su Shizhuo.Calculator Program for Consolidation Settlement[J].Journal of Huaqiao University(Natural Science),1997,18(2):62.[doi:10.11830/ISSN.1000-5013.1997.01.0062]

备注/Memo

备注/Memo:
收稿日期: 2024-01-18
通信作者: 蔡奇鹏(1982-),男,教授,博士,博士生导师,主要从事岩土与地下工程的研究。E-mail:cqp@hqu.edu.cn。
基金项目: 国家自然科学基金资助项目(52378342, 52308400); 福建省科技计划资助项目(2022Y4015); 福厦泉国家自主创新示范区协同创新平台项目(3502ZCQXT2022002); 中建股份科技研发计划资助项目(CSCEC-2020-Z-57)http://www.hdxb.hqu.edu.cn
更新日期/Last Update: 2024-03-20