摘要
城市轨道交通线路网不断扩展延伸,在小井口竖井条件下盾构始发越来越普遍,如何通过小井口竖井进行井上井下高精度定向和坐标传递,已成为地铁施工测量面临的重要难题。依托广州地铁7号线二期工程科丰路站小井口竖井联系测量实例,探索使用多钢丝后方交会方法进行联系测量的可行性,提供小井口竖井盾构始发条件下高精度定向和坐标传递的新方法,取得了较好的应用效果,验证了小井口竖井后方交会联系测量方法可用于竖井联系测量,指导盾构施工。
With the continuous expansion of urban rail transit line network,shield launching under the condition of small wellhead shaft is becoming more and more common.How to conduct high-precision orientation and coordinate transmission above and below the shaft through the small wellhead shaft has become an important problem faced by metro construction survey personnel.This paper explores the feasibility of using the multi wire resection method for connection survey through the example of shaft connection survey at Kefeng Road Station of Phase II Project of Guangzhou Metro Line 7,and provides a new method of high-precision orientation and coordinate transmmision under the condition of shield launching from the small wellhead shaft,which has achieved good results and verified that the multi wire resection method in small wellhead shaft can be used for shaft connection survey to guide shield construction.
作者
贾东杰
徐顺明
JIA Dongjie;XU Shunming(Guangzhou Metro Group Co.,Ltd.,Guangzhou 510330)
出处
《现代隧道技术》
CSCD
北大核心
2022年第S01期979-985,共7页
Modern Tunnelling Technology
关键词
盾构隧道
小井口竖井
多钢丝后方交会
联系测量
Shield tunnel
Small wellhead shaft
Multi wire resection
Connection survey
