摘要
城市地铁建设过程中,常出现线路下穿年代久远、结构信息不详的建(构)筑物,如桩长不明的高架桥桥桩等。利用旁孔透射技术不仅能够因地制宜地解决桩长探测的难题,而且在经济性、安全性和可靠性方面均有保障。文章依托广州地铁某盾构区间工程,介绍了旁孔透射法桩基探测技术的工作原理、设备仪器、工艺流程、技术要点、技术优势及局限性,可为类似工程提供参考。
In the process of urban metro construction,the metro line often passes under aged buildings(structures)with unknown structural information,such as viaduct piles with unknown lengths.Using parallel seismic test method,it can not only solve the problem of condition limitations in pile length detection according to local conditions,but also provide guarantees in terms of the economic,safety and reliability aspects.This paper is based on a shield-driven running tunnel project of Guangzhou Metro,and introduces the working principle,equipment and instruments,process flow,and technical key points,advantages and limitations of the parallel seismic test method in pile foundation detection,which can provide a reference for similar projects.
作者
李永森
李艳斌
LI Yongsen;LI Yanbin(CCCC First Highway Xiamen Engineerings Co.,Ltd.,Xiamen 361021)
出处
《现代隧道技术》
CSCD
北大核心
2021年第S02期120-126,共7页
Modern Tunnelling Technology
关键词
盾构隧道
桩基探测
激振波
旁孔透射
检波器
Shield tunnel
Pile foundation detection
Excitation wave
Parallel seismic test
Geophone
