[1]陈艳琼,李敏,林奕.发泡剂性能对公路软基用泡沫混凝土的影响[J].福建工程学院学报,2023,21(03):288-292.[doi:10.3969/j.issn.1672-4348.2023.03.014]
CHEN Yanqiong,LI Min,LIN Yi.Influence of foaming agent properties on foamed concrete forsoft foundation of highway[J].Journal of FuJian University of Technology,2023,21(03):288-292.[doi:10.3969/j.issn.1672-4348.2023.03.014]
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发泡剂性能对公路软基用泡沫混凝土的影响(
)
《福建工程学院学报》[ISSN:1672-4348/CN:35-1267/Z]
- 卷:
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第21卷
- 期数:
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2023年03期
- 页码:
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288-292
- 栏目:
-
- 出版日期:
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2023-06-25
文章信息/Info
- Title:
-
Influence of foaming agent properties on foamed concrete forsoft foundation of highway
- 作者:
-
陈艳琼; 李敏; 林奕
-
福建船政交通职业学院
- Author(s):
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CHEN Yanqiong; LI Min; LIN Yi
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School of Civil Engineering, Fujian Chuanzheng Communications College
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- 关键词:
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软基处理; 发泡剂性能; 泡沫混凝土; 沉降变形; 有限元分析
- Keywords:
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soft foundation treatment; foaming agent performance; foam concrete; settlement deformation; finite element analysis
- 分类号:
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U416
- DOI:
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10.3969/j.issn.1672-4348.2023.03.014
- 文献标志码:
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A
- 摘要:
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泡沫混凝土具有轻质、高流动性、易施工等特性,可作为桥头软基段路堤的换填材料。为评价发泡剂性能对泡沫混凝土的影响,通过室内试验,对比不同稀释倍数下的发泡剂物理指标和泡沫混凝土的强度,得出发泡剂的最佳稀释倍率。采用最佳稀释倍率的泡沫混凝土进行工程实例应用,得出其实测沉降量。利用Ansys 有限元软件,模拟该泡沫混凝土对软基换填后的效果,并结合公路桥头软基填筑现场监测结果,证实该种泡沫混凝土能够达到减小路基沉降量要求,为软土地基处理提供方案。
- Abstract:
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Foamed concrete has the characteristics of light weight, high fluidity, easy construction and so on. It can be used as the replacement material for embankment at the bridgehead soft foundation section. In order to evaluate the influence of foaming agent properties on foamed concrete, laboratory tests were conducted to compare the physical indexes of foaming agent and the strength of foamed concrete under different dilution ratios , and then obtain the optimal dilution ratio of foaming agent. The foam concrete with the best dilution ratio was applied in the engineering practice to obtain the measured settlement amount. Finally, Ansys finite element software was used to simulate the effect of the foamed concrete on soft foundation replacement. Combined with the in-situ monitoring results of soft foundation filling at highway bridge head, it was confirmed that the foamed concrete could meet the requirements of reducing the subgrade settlement and provide a scheme for soft soil foundation treatment.
参考文献/References:
[1] 刘利萍. 泡沫混凝土换填工艺在软基路基处理的应用探究[J]. 工程机械与维修,2023(2):208-210. [2] 郝飞. 基于软土地区不良地质条件的泡沫混凝土换填及施工控制[J]. 中国公路,2023(3):118-120.[3] 彭子茂,宁英杰,叶林杰,等. 泡沫混凝土置换路堤对基底压力及沉降的影响[J]. 新型建筑材料,2020,47(9):163-167.[4] 蒋万希. 考虑刚度修正的深厚软土层上泡沫混凝土路堤沉降变形特性[J]. 土木工程与管理学报,2019,36(2):120-126.[5] 梅岭,翟宇,王新泉,等. 高陡地形泡沫混凝土轻质路堤承载特性分析[J]. 中外公路,2022,42(1):12-18.[6] 蔡海良,单志雄. 路用泡沫混凝土不同置换形式下路基变形研究[J]. 湖南交通科技,2022,48(1):19-23.
更新日期/Last Update:
2023-06-25