摘要
北京地铁五号线区间隧道蒲黄榆至天坛东门段在玉蜓桥两侧下穿京山铁路,隧道埋深17 m。为保证既有线运营安全,采用全断面帷幕注浆预加固技术,监控量测结果表明路基沉降可以满足要求。
The subway tunnel of No.5 line of Beijing Metro between Puhuangyu station and Tiantandong station goes beneath adjacent existing Jingshan railway at Yutingqiao,with a buried depth of 17 m.In order to ensure the operation safety of existing Jingshan railway,the measure of full-face curtain grouting in advance is adopted.The monitored results indicate that the settlement of subgrade has satisfied the operation requirements
关键词
地铁区间隧道
既有铁路
施工控制
监控量测
subway tunnel
existing railway
construction control technology
monitoring measurement
