穿楼房群地段暗挖地铁隧道施工技术

On construction technique of metro tunnel of subsurface excavation through building group

介绍了深圳地铁世界之窗站后折返线区间隧道施工方法及采取的措施,成功地解决了浅埋暗挖软弱地层区间隧道施工技术难题,指出该文所采取的超长大管棚及洞内深孔预注浆等措施克服了富水软弱地层防沉降施工技术难题。

The paper introduces the construction method for the interval tunnel of the back-turning line after Shenzhen World＇s Window Station and some adopted measures, successfully solves the technological problems of the interval tunnel construction in shallow burying and subsurface excavation weak formation, and points out some measures, such as the ultra long and large pipe shed and the deep hole-pre-grouting in tunnel, and overcomes the technological problem of settlement construction in the weak formation with rich water.