| 基坑开挖地表沉降模型适用性研究 |
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| 引用本文： | 王强,;陈春舒.基坑开挖地表沉降模型适用性研究[J].岩土工程技术,2014(4):168-171. |
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| 作者姓名： | 王强 ;陈春舒 |
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| 作者单位： | [1]中铁建设集团有限公司,北京100040; [2]武汉理工大学土木工程与建筑学院,湖北武汉430070 |
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| 摘 要： | 基坑开挖引起的地表沉降对周边建筑物的安全造成了一定的威胁,在已有大量实测数据分析的基础上,提出了一种新的数学函数模型,并结合模型函数性质提出了基于最大沉降量Smax和沉降范围r的沉降模型表达式,结合相关工程实例中的数据分析,证明该模型对基坑开挖引起的地表沉降规律有着较好的适用性,将该模型与其他类似的模型进行了对比.研究成果可为相关基坑工程开挖引起的地表沉降的预测和控制提供参考.
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| 关 键 词： | 基坑 地表沉降 数学模型 影响范围 最大沉降量 |
Study on Applicability of a New Model for Describing Ground Settlement Induced by Foundation Pit Excavation |
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| Institution: | Wang Qiang,Chen Chunshu( 1.China Railway Construction Group Corporation Co., Ltd, Beijing 100040, China; 2.School of Civil Engineering and Architecture,Wuhan University of Technology, Wuhan 430070, Hubei, China;) |
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| Abstract: | Ground settlement induced by foundation pit excavation always threatens the safety of the surrounding buildings.Based on lots of measured data analysis,a new mathematical model for describing ground settlement is proposed.The expression of the model including the maximum settlement s and settlement range r is given according the analysis of proper ties of the model function.Then the test data from relevant papers is fitted to prove that the model has good applicability for de scribing the distribution of the settlement.Finally,a contrast is made between this model and decentration distribution.The research results will provide references to predict and control the ground settlement induced by excavation of relevant foundation pits. |
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| Keywords: | foundation pit ground settlement mathematical model influence range maximum settlement |
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