[1]付冬平,孔剑捷,张欣亚.软土深基坑施工监测与数值模拟分析[J].华南地震,2024,(02):136-143.[doi:10.13512/j.hndz.2024.02.16]
FU Dongping,KONG Jianjie,ZHANG Xinya.Monitoring and Numerical Simulation of Deep Foundation Pit Construction in Soft Soil[J].,2024,(02):136-143.[doi:10.13512/j.hndz.2024.02.16]
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软土深基坑施工监测与数值模拟分析(
)
华南地震[ISSN:1006-6977/CN:61-1281/TN]
- 卷:
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- 期数:
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2024年02期
- 页码:
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136-143
- 栏目:
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土木工程防震减灾
- 出版日期:
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2024-06-30
文章信息/Info
- Title:
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Monitoring and Numerical Simulation of Deep Foundation Pit Construction in Soft Soil
- 文章编号:
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1001-8662(2024)02-0136-08
- 作者:
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付冬平1; 孔剑捷2; 张欣亚2
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1.北京市市政工程设计研究总院有限公司,北京 100082;2.上海大学力学与工程科学学院,上海 200444
- Author(s):
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FU Dongping1; KONG Jianjie2; ZHANG Xinya2
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1.Beijing General Municipal Engineering Design&Research Institute Co.,Ltd.,Beijing 100082,China;2.School of Mechanics and Engineering Science , Shanghai University , Shanghai 200444, China
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- 关键词:
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淤泥质土; 围护结构; 深基坑; 地下连续墙; 数值模拟
- Keywords:
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Muddy soil; Retaining structure; Deep foundation pit; Underground continuous walls; Numerical simulation
- 分类号:
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TU443
- DOI:
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10.13512/j.hndz.2024.02.16
- 文献标志码:
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A
- 摘要:
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以上海地区某深基坑工程为研究背景,分析了施工过程中围护结构和周边环境的监测数据,为了对基坑围护设计方案进行校核优化,采用FLAC3d软件建立了数值计算模型,对比分析了监测数据和数值模拟结果,研究了地下连续墙的厚度、深度、内支撑截面尺寸等设计参数对围护结构变形和基坑周边土体沉降的影响,可为软土地区深基坑工程的围护结构设计提供经验和依据。
- Abstract:
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Taking a deep foundation pit project in Shanghai as research background,the monitoring data collected from the retaining structures and adjacent environments during construction was analyzed. To optimize the design of the retaining structure of the foundation pit, a numerical calculation model was established by using the FLAC3d software. A comparative analysis was carried out between the monitoring data and the numerical simulation outcomes. The influence of various design parameters such as the thickness, depth, and cross-sectional dimensions of internal support of the underground diaphragm wall on the deformation of the retaining structure and the settlement of adjacent soils around the foundation pit was studied. The findings presented herein can provide valuable insights and foundational guidance for the design of retaining structures in deep foundation pit projects in soft soil terrains.
参考文献/References:
[1]王卫东,徐中华.基坑工程技术新进展与展望[J].施工技术,2018,47(6):53-65.
[2]李尚明,洪成雨,姬凤玲,等.深基坑的机器视觉监测与变形预测研究[J].地下空间与工程学报,2023,19(03):992-1000.
[3]鲁泰山,刘松玉,蔡国军,等.软土地层基坑开挖扰动及土体再压缩变形研究[J].岩土力学,2021,42(02):565-573+580.
[4]杨忠平,刘浩宇,周小涵,等.深厚淤泥土深长基坑开挖对邻近建筑的影响[J].地下空间与工程学报,2022,18(03):1015-1024.
[5]任城,黄睿.绍兴地铁某风井深基坑施工监测分析[J].土工基础,2020,34(03):361-365.
[6]曲成平,叶明辉,孙浩方.某项目深基坑变形监测与数值模拟分析[J].施工技术,2019,48(22):59-62.
[7] Ren B K,Zhu H H,Shen Y,et al. Deformation monitoring of ultra-deep foundation excavation using distributed fiber optic sensors[J/OL].IOP Conference Series: Earth and Environmen?tal Science,2021,7(861):072057[2023-12-30]. https://iop?science.iop.org/article/10.1088/1755-1315/861/7/072057.
[8] Lin P,Liu P,Ankit G,et al. Deformation monitoring analysis and numerical simulation in a deep foundation pit[J]. Soil Mechanics and Foundation Engineering,2021(58):56-62.
[9]刘晓峰,彭成,熊智彪,等.复杂深基坑二次开挖支护结构设计与监测分析[J].施工技术,2019,48(1):31-35.
[10]万志辉,刘红艳,步艳洁.深基坑围护结构变形监测与数值模拟分析[J].施工技术,2015,44(7):83-86.
[11]孙锴,彭峰,杨果林,等.泥炭土深基坑支护设计和位移监测[J].公路工程,2018,43(4):62-66+132.
[12]喻军,尚安峰,蔡益丰,等.不同围护结构变形模式对坑内土体位移影响[J].地基处理,2023,5(04):346-353.
[13]苟学登,杨琛,宣伟琳,等.基于时空效应的软土深基坑变形特性研究[J].市政技术,2023,41(07):168-175.
[14]李平,鞠雅倩,徐建元,等.我国黄土地区土层地震动峰值加速度衰减关系研究[J].地震研究,2023,46(4):586-592.
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备注/Memo
- 备注/Memo:
-
收稿日期:2024-02-10
作者简介:付冬平(1977-),男,硕士,高级工程师,主要从事岩土工程专业方面的研究。E-mail:47160390@qq.com
更新日期/Last Update:
2024-06-30