临近建筑物的基坑支护结构体系设计研究
摘要:以天津慧宁嘉园基坑支护工程为背景,采用ABAQUS建立了临近建筑物的软土基坑开挖模型,以建筑物最大倾斜度作为评判标准,分析了支护结构体系中各要素对临近建筑物变形的影响特征。结果表明:①增加建筑物距基坑的距离可有效地控制建筑物的沉降和倾斜;②增加内支撑高度或内支撑钢筋预应力可有效控制临近建筑物的沉降和变形;③围护桩的混凝土强度和桩径对建筑物的沉降和倾斜影响不大,增加围护桩的桩长可有效的控制建筑物的沉降和倾斜;④增大土层黏聚力和内摩擦角可有效控制建筑物的沉降和倾斜,可以作为特定情况下建筑物保护措施的选项。
Abstract:ABAQUS sottware is used to establish the model ot excavation of soft soft foundation pit approaching building in Huining Jiayuan residential quarte,Tianjin.The maximum inclination of building is taken as the criterion to analyze the features of influence of each element in the support structure system on the deformation of the adjacent building.Several conclusions were drawn:①Increasing the distance between the building and the foundation pit can effectively control the settlement and inclination of the building.②Increasing the height of the inner support or the prestress of the internal support can effectively control the settlement and deformation of the adjacent building.③The concrete strength,the diameter and length of pile have little influence on the settlement and inclination of building.④Increasing the cohesion and angle of internal friction of the soil can effectively control the settlement and inclination of the building,which can be used as an option for the protection of building under certain circumstances.
中文标题：
临近建筑物的基坑支护结构体系设计研究
Research on Design of Retaining Structure System for Foundation Pit Adjacent to Building
作者：
王笃礼1,匡健2,沈宇鹏3
Wang Duli1,Kuang Jian2,Shen Yupeng3
作者简介:王笃礼,男,1965年生,江苏靖江人,研究员,主要从事岩土工程的勘察、设计和科研工作。E-mail:wangduli@163.com
通讯地址：
1. 中航勘察设计研究院有限公司, 北京 100098; 2. 中国新兴建设开发总公司, 北京 100039; 3. 北京交通大学土木建筑工程学院, 北京 100044
1.AVICInstituteofGeotechnicalEngineeringCo.,Ltd,Beijing100098,China; 2.ChinaXinxingConstructionS-DevelopmentGeneralCo.,Beijing100039,China; 3.SchoolofCivilEngineering,BeijingJiaotongUniversity,Beijing100044,China
中图分类号:TU941
doi:10.3969/j.issn.1007-2993.2017.04.004
出版物：岩土工程技术
收稿日期:2017-05-24
网络出版日期:2021-07-06
关键词:基坑支护,建筑物变形,最大倾斜度,数值分析
Key words:foundation pit support,building deformation,maximum inclination,numerical analysis
文档包含图片数量：图片(0)张
文档包含表格数量：表格(0)个
参考文献：
基金项目：
基金项目: 第49批留学归国人员启动基金项目 中央高校基本科研业务费专项资金(2015JBM064)
- 文件大小:
- 1.14 MB
- 下载次数:
- 60
-
高速下载
|
