| 既有重力式挡土墙与临近基坑开挖相互影响的研究 |
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| 引用本文： | 李志堂,彭振斌,彭文祥,宋厚园.既有重力式挡土墙与临近基坑开挖相互影响的研究[J].湖南科技大学学报(自然科学版),2011(3). |
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| 作者姓名： | 李志堂 彭振斌 彭文祥 宋厚园 |
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| 作者单位： | 中南大学地球科学与信息物理学院; |
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| 基金项目： | 湖南省自然科学基金(11JJ6042) |
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| 摘 要： | 为了深入了解临近开挖施工的基坑与附近既有重力式挡土墙之间相互作用所引起的力学行为,利用快速拉格朗日方法(FLAC3D)建立既有重力式挡土墙与临近基坑开挖的实际模型和等效模型,并通过这2个模型的对比数值模拟,分析了既有重力式挡土墙与临近基坑开挖的相互影响.将重力式挡土墙及其背后土体等效为相应荷载进行模拟,其土体变形和支护结构受力与实际模型模拟的结果较为相似.按照等效模型进行基坑支护结构设计是可行的,但同时也要注意分析重力式挡土墙的稳定性.
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| 关 键 词： | 基坑 重力式挡土墙 FLAC3D 数值模拟 |
Study on interaction between existing gravity retaining wall and nearby foundation pit excavation |
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| LI Zhi-tang,PENG Zhen-bin,PENG Wen-xiang,SONG Hou-yuan.Study on interaction between existing gravity retaining wall and nearby foundation pit excavation[J].Journal of Hunan University of Science & Technology(Natural Science Editon),2011(3). |
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| Authors: | LI Zhi-tang PENG Zhen-bin PENG Wen-xiang SONG Hou-yuan |
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| Institution: | LI Zhi-tang,PENG Zhen-bin,PENG Wen-xiang,SONG Hou-yuan(School of Geoscience and Information Physics,Central South University,Changsha 410038,China) |
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| Abstract: | In order to understand the mechanical behavior between existing gravity retaining wall and nearby foundation pit excavation,fast Lagrangian Analysis of Continua in 3 Dimensions(FLAC3D) was employed to build a realistic model and an equivalent model,then to investigate the interaction between existing gravity retaining wall and nearby foundation pit excavation by numerical modelling.The deformation of soil mass and mechanic of supporting structure in the equivalent model,in which the gravity retaining wall a... |
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| Keywords: | foundation pit gravity retaining wall FLAC3D numerical modeling |
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