摘要
对富含承压水和潜水的深基坑进行开挖往往会造成边坡失稳和坑底突涌,因此,对基坑进行降水支护设计尤为重要。文章以太原市小店区某中学项目为例,详细介绍了在建筑场地内土层有承压水和地表潜水的条件下,开挖深基坑综合应用复合土钉墙支护和双排水泥土搅拌桩止水帷幕对基坑进行加固的具体方案,并对降水井的布置进行了分析,旨在为类似工程提供经验。
Excavation of the deep foundation pit rich in confined water and phreatic water often causes side slope instability and sudden inrush at the bottom of the pit.Therefore,it is particularly important to design dewatering support for foundation pit.Taking a middle school project in Xiaodian District of Taiyuan City as an example,this paper introduces in detail the specific scheme of using composite soil nail wall support and double row cement soil mixing pile water stop curtain to reinforce deep foundation pit under the condition of confined water and surface phreatic water in the soil layer of the construction site,and analyzes the layout of the dewatering well,aiming at providing experience for similar engineering.
作者
张婷
ZHANG Ting(China Railway 17th Bureau Group Fifth Engineering Co.,Ltd.,Taiyuan 030032,Shanxi,China)
出处
《工程技术研究》
2024年第8期197-199,共3页
Engineering and Technological Research
关键词
深基坑
开挖支护
复合土钉墙
止水帷幕
降水井
deep foundation pit
excavation support
composite soil nail wall
water stop curtain
dewatering well