1) center drift method
中洞法
1.
Construction technology of center drift method for long span city underground engineering in shallow depth and weak surrounding rock;
浅埋、大跨、软弱围岩城市地下工程中洞法施工工艺
2.
The article introduces the construction technology of center drift method for shallow excavation tunnel in Beijing Metro Line 5,analyses the monitored data for the earth s surface.
介绍了北京地铁 5号线磁器口车站浅埋暗挖隧道中洞法施工技术 ,对地表监测数据进行了分析。
3.
The three-arch tunnel on Shiliuzhuang Subway Sation of Line 4 in Beijing Metro passes through the ground consisting of silty clay and medium-coarse sand,which is constructed by means of the center drift method.
三联拱结构在暗挖地铁车站浅埋暗挖中已经越来越普遍的被采用,该结构的暗挖大多采用安全性高,灵活性好,可操作性强,机械化程度低,出土效率高,工序间干扰较少的中洞法施工技术。
2) mid-cavern excavation method
中洞法
1.
Construction technology of shallow-buried mid-cavern excavation method for tunnel;
地铁暗挖中洞法施工技术
3) two-guiding-hole method
中导洞法
1.
According to the result,the three-guiding-hole method is more suitable for this construction because their wall-rock displacement and vertical stress are smaller and the prejudicial stress of the middle wall is lower than the two-guiding-hole method.
以张石高速公路二期工程岔道一号隧道为实例,对三导洞法和中导洞法两种施工方法进行了数值模拟,分析比较了这两种施工方法在不同施工工序下的围岩位移场、围岩竖向应力场以及中隔墙竖向应力的变化,从而得出了在相同支护条件下,采用三导洞方案进行岔道一号双连拱隧道施工时,与中导洞方案相比围岩位移值小,竖向应力和中墙所受偏压力低,因而优于中导洞方案。
4) central heading method
中导洞工法
6) mining excavation of middle tunnel
暗挖中洞法
1.
The method of mining excavation of middle tunnel, with enormous constructing difficulties and great safety risks, was firstly applied in No.
目前国内地铁车站完全采用暗挖法施做并已投入使用的仅有北京地铁西单站、天安门西站、东单站和王府井站，主要是采用洞柱法、桩柱法和“双眼睛法”施工，而暗挖中洞法施工技术在国内双层地铁车站中还是首次在北京地铁五号线采用，施工难道大、安全风险大。
补充资料：洞中
1.命中，切中。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条