理论与试验研究

围护结构水平位移引发地表沉降的解析计算

  • 郭江豪 ,
  • 杨政 ,
  • 尹思雨 ,
  • 汪凯
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  • 1.西安交通大学 人居环境与建筑工程学院,西安 710100;
    2.中建七局安装工程有限公司,郑州 450000
郭江豪(1998—),男,河南漯河人,硕士,主要从事岩土工程及地下工程等领域的研究工作。E-mail:JianghaoG@stu.xjtu.edu.cn
杨政(1964—),男,西安人,博士,教授,主要从事复杂环境下结构破坏理论的研究工作。E-mail:zyang@mail.xjtu.edu.cn

收稿日期: 2024-04-10

  网络出版日期: 2025-03-12

Analytical Calculation of Ground Settlement Induced by Horizontal Displacement of Enclosure Structure

  • Guo Jianghao ,
  • Yang Zheng ,
  • Yin Siyu ,
  • Wang Kai
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  • 1. School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an 710100, P.R. China;
    2. China Construction Seventh Bureau Installation Engineering Co., Ltd., Zhengzhou 450000, P.R. China

Received date: 2024-04-10

  Online published: 2025-03-12

摘要

基坑围护结构水平位移引起的墙后地表沉降,会对邻近建筑和结构设施造成影响,因此对墙后地表沉降的预测是有必要的。为了准确预测墙后地表沉降,本文将围护结构的水平位移视为由4种基本变形模式组合而成,以围护结构刚性位移引起的墙后地表沉降解析模型为基础,利用微元法进行积分,推导出围护结构任意变形模式引起的墙后地表沉降解析模型,并采用数值模拟的方法对解析模型进行修正。将采用本文方法得到的墙后地表沉降值与3个实际工程数据进行对比分析,结果表明,本文推导的墙后地表沉降解析模型可以较好地预测墙后地表的沉降位移,从而验证了本文解析模型的可靠性。

本文引用格式

郭江豪 , 杨政 , 尹思雨 , 汪凯 . 围护结构水平位移引发地表沉降的解析计算[J]. 地下空间与工程学报, 2025 , 21(1) : 42 -51 . DOI: 10.20174/j.JUSE.2025.01.05

Abstract

The settlement of the ground behind the walls caused by the horizontal displacement of the foundation pit retaining structures can have an impact on nearby buildings and structural facilities. Therefore, it is necessary to predict the settlement of the ground behind the walls. In order to accurately predict the settlement of the ground behind the walls, the horizontal displacement of the retaining structures is considered as a combination of four fundamental deformation modes, the analytical model for settlement caused by the rigid displacement of the retaining structures serves as the foundation. utilizing the method of small elements for integration, analytical models for settlement caused by any deformation mode of the retaining structures are derived. Additionally, numerical simulations are employed to further refine the analytical models. The settlement values of the ground behind the walls obtained using the method in this paper will be compared and analyzed with three sets of actual engineering data. The results indicate that the analytical model for settlement of the ground behind the walls, derived in this paper, can effectively predict the settlement displacement, this validates the reliability of the analytical model proposed in this study.

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