摘要
城市地铁修建时,结构难免会侵入既有建(构)筑物的基础边界,为此常采用的方法便是拔除。结合上海某标段盾构隧道的桥梁旧桩拔除工程实例,分析了全套管无损拔桩施工技术在工程应用中的优点及其施工工艺。同时,通过实测数据探究了桩基拔除对近接箱涵的沉降影响规律,得出了相应的影响区间,并提出了类似地层情况下近接施工的建议。
During the construction of urban subway,the structure will inevitably invade the foundation boundary of the existing buildings(structures),so the usual method is to remove it.Based on the case study of a shield tunnel in Shanghai,this paper analyzes the advantages and construction technology of the whole casing nondestructive pile pulling construction technology in engineering application.At the same time,based on the measured data,the influence rule of the pile foundation pulling on the settlement of the adjacent box culvert is explored,and the corresponding influence range is obtained,and the suggestions for the adjacent construction under similar stratum condition is put forward.
作者
李鸯
LI Yang(China Railway 18th Bureau Group Fourth Engineering Co.,Ltd.,Tianjin 300350,China)
出处
《建筑施工》
2020年第2期170-172,共3页
Building Construction
关键词
拔桩
施工工艺
近接工程
沉降监测
pile pulling
construction technology
adjacent engineering
settlement monitoring
作者简介
李鸯(1983-),男,本科,工程师。通信地址:天津市津南区双港工业园丽港园33号(300350)。电子邮箱:164221291@qq.com。
