临近浅基础建筑单层地下室基坑变形控制研究
摘要:软土地基中为控制临近浅基础建筑物的单层地下室基坑变形,开发了新型的基坑支护结构和控制技术,并应用于工程中。在基坑内设置被动桩,被动桩与支护桩设置传力梁,将内支撑设置于支护结构顶部并在浇筑地下室顶板时不拆除支撑,详细介绍了该技术的施工方法。在施工过程中进行了土体水平位移、坑外土体竖向位移及周边房屋沉降等监测。结果表明,随着施工开挖,深层土体水平位移曲线呈现"鱼肚"形,且基坑在开挖过程中土体位移变化不大,深层土体水平位移、坑外土体竖向位移及周边房屋沉降均未超出报警值。通过新型支护结构和控制技术的应用,有效控制了临近浅基础基坑变形。
Abstract:In order to control the deformation of single floor basement pit near the shallow foundation building in soft ground, a new foundation pit supporting structure and control technology are developed and applied in the project. The passive pile is set in the foundation pit, and the transfer beam is set between the passive pile and the supporting pile. The monitoring of the horizontal displacement of the soil, the vertical displacement of the pit outside and the settlement of surrounding houses are carried out. The results show that with the excavation, the horizontal displacement curve of the deep soil body shows a "fish belly" shape, and the displacement of the soil in the excavation process and the demolition process is not much. The horizontal displacements of the deep soil, the vertical displacements of the pit and the settlements of the surrounding houses did not exceed the warning value. The deformation of the pit adjacent shallow foundation is effectively controlled by the application of the new supporting structure and control technology.
中文标题：
临近浅基础建筑单层地下室基坑变形控制研究
Study on Deformation Control of Single Floor Basement Pit near Shallow Foundation Building
作者：
袁子琦1,崔允亮2,,
Yuan Ziqi1,Cui Yunliang2,,
作者简介:袁子琦,男,1979年生,汉族,浙江杭州人,大学本科,高级工程师,从事基坑工程方向研究。E-mail:22821058@qq.com通讯作者:崔允亮,男,1984年生,汉族,浙江杭州人,博士,副教授。E-mail:cuiyl@zucc.edu.cn
通讯地址：
1. 中国电建集团华东勘测设计研究院有限公司, 浙江杭州 311122; 2. 浙江大学城市学院 工程学院, 浙江杭州 310015
1.ChinaPowerConstructionGroupEastChinaSurveyDesign&ResearchInstituteCo.,Ltd.,Hangzhou311122,Zhejiang,China; 2.EngineeringCollege,ZhejiangUniversityCityCollege,Hangzhou310015,Zhejiang,China
中图分类号:TU753
doi:10.3969/j.issn.1007-2993.2020.06.006
出版物：岩土工程技术
收稿日期:2020-04-08
网络出版日期:2021-07-06
关键词:单层地下室基坑,浅基础,变形控制,被动桩
Key words:single floor basement pit,shallow foundation,deformation control,passive pile
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基金项目：
基金项目: 中国电建集团华东勘测设计研究院科研计划项目(KY2018-JG-39)
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