摘要
对复杂地质下地铁站旁深基坑群支护质量控制技术进行研究,结合具体工程案例,阐述搭接深基坑与外侧桩体,重点承重区域采用钢筋笼吊进行多层级的土方开挖,标记每一阶段的挖掘深度,对连续支护墙槽段间接头处理等施工工艺,并对施工质量进行验证分析,结果表明:最终得出的屈服强度均控制在35 MPa以下,表明该建筑深基坑群的支护质量控制效果较好。
This paper studies the quality control technology of deep foundation pit group support beside subway station under complex geology,combined with specific engineering cases,this paper describes the construction technology,as to overlap the deep foundation pit and the outer pile body,use the reinforcement cage crane to carry out multi-layer earthwork excavation in the key bearing area,mark the excavation depth at each stage,treat the joints between the continuous support wall slot sections,and verifies and analyzes the construction quality.The results show that the final yield strength is controlled below 35 MPa,which indicates that the supporting quality control effect of this building's deep foundation pit groupisgood.
作者
刘新良
吴超
邱进强
LIU Xin-liang;WU Chao;QIU Jin-qiang(China Construction Second Engineering Bureau Co.Ltd.,Beijing 100000,China)
出处
《工程建设与设计》
2023年第11期45-47,共3页
Construction & Design for Engineering
关键词
地铁站施工
复杂地质
深基坑
支护结构
基坑挖掘
质量控制
subwaystationconstruction
complex geology
deep foundationpit supporting structure
foundation pitexcavation
qualitycontrol
