摘要
文中依托福建省福州市某房屋建筑项目,分析了周边荷载及环境温度对基坑支护结构不同部位变形量的影响。结果表明,随着基坑顶部的不断卸载,基坑顶部的水平位移数据不断增加;随着基坑顶部的不断卸载,基坑周边地表的沉降量不断增加,但是越靠近基坑,其累计沉降量增加速率越明显;越远离基坑,其累计沉降量增加速率不是太显著;支撑越长,随着温度下降支撑的水平位移值越大;温度每下降10℃,支撑水平位移的最大值为12.1 mm;基坑北侧的水平位移随着温度的升高而降低,基坑东侧的水平位移随着温度的变化而变化不显著;基坑的支撑轴力整体的变化范围不是很显著,且不同位置的支撑轴力变化趋势不一致。
this paper relies on a building construction project in Fuzhou,Fujian Province,to analyze the influence of surrounding load and ambient temperature on the deformation of different parts of foundation pit supporting structure.The results show that the horizontal displacement data of the top of foundation pit increases with the unloading of the top.With the continuous unloading of the top of the foundation pit,the surface settlement around the foundation pit continues to increase,but the closer the foundation pit is,the more obvious the cumulative settlement increase rate is.The further away from the foundation pit,the increasing rate of the accumulated settlement is not too significant.The longer the support is,the larger the horizontal displacement value of the support is as the temperature decreases.When the temperature drops by 10℃,the maximum horizontal displacement of the support is 12.1 mm.The horizontal displacement on the north side of the foundation pit decreases with the increase of temperature,while the horizontal displacement on the east side of the foundation pit does not change significantly with the change of temperature.The overall variation range of supporting axial force of foundation pit is not very significant,and the variation trend of supporting axial force at different positions is inconsistent.
作者
张杰
Zhang Jie(Fujian Qingan Engineering Construction Co.Ltd.,Fuzhou,Fujian 350000)
出处
《江西建材》
2024年第1期125-127,共3页
Jiangxi Building Materials
关键词
基坑工程
支护结构
影响因素
结构变形
Foundation pit engineering
Supporting structure
Influencing factors
Structural deformation
作者简介
张杰(1989—),男,福建建瓯人,本科,工程师,主要研究方向为建筑施工技术。
