摘要
为实现基坑安全施工,文中先开展基坑勘察成果分析,并进行支护技术研究。结果表明,基坑区范围内不存在液化地层,工程建设条件较好,且场区内粉质黏土层、中粗砂层及强-中风化基岩层均具备较好的工程性质。同时,结合基坑基础条件,将基坑支护方案总体设计为“支护桩+锚索”,并经现场变形监测,得到基坑水平位移变化范围为11.46~18.06 mm,均值为14.37 mm,均小于设计控制值,且剩余变形量仍较大,说明支护措施有效,为其安全施工奠定了理论基础。
To achieve safe construction of foundation pits,this articlef irst conducts an analysis of the results of foundation pit survey and conducts research on support technology.The analysis results nidicate that there is no liquefied formation within the excavaiton area,and the engineering construction conditions are good.The silty clay layer,medium coarse sand layer,and strongly to moderately weathered bedrock layer in the site all have good engineering properties.At thes ame time,combined with the foundation conditions of the foundation pit,the overall design of the foundation pit support plan is"support piles+anchor cables".After on-site deformation monitoring,the horizontal displacement range of the foundation pit is 11.46~18.06 mm,with an average of 14.37 mm,which is less than the design control value,and the remaining deformation is still large.This indicates the effectiveness of the support measures,laying a theoretical foundation for its safe construction.
作者
王维重
Wang Weizhong(Shenyang Building Materials Geological Engineering Survey Institute Co.Ltd.,Shenyang,Liaoning 110000)
出处
《江西建材》
2023年第11期211-213,共3页
Jiangxi Building Materials
关键词
基坑
岩土工程勘察
基坑支护
变形监测
Foundation pit
Geotechnical engineering survey
Foundation pit support
Deformation monitoring
