中洞

北京地铁施工中所采用的中洞法是以CD、CRD法为基础，继侧洞法和柱洞法（PBA工法）之后发展起来的一种开挖大型浅埋暗挖地下洞室的新工法。

Based on center diagram method and center cross diagram method , Center drift excavation method is developed as a new construction method for the large-scale shallow tunnel engineering after side drift excavation method and PBA method .

地下洞室开挖过程中洞周损伤分布的时变反演

Time-variation Back Analysis of Surrounding Damage Distribution in Underground Excavation

中洞法开挖的地铁车站二衬结构施工受力分析

Numerical Analysis for Secondary-lining of Subway Station Tunneled in Center Drift Method

分析浅埋暗挖三拱两柱地铁车站中洞法施工对地表沉降的影响

The Influence of Middle Tunnel Method on Ground Settlement in the Construction of Subway Station

采用中洞法施工的地铁车站分离式模板台车应用技术

Separable form jumbo adopted in a subway station with the middle cell constructed in advance

双层地铁车站中洞法施工技术研究

Study on the . Construction Technology of Mining Excavation of Middle Tunnel for Double-Deck Subway Station

振幅衰减值层析成像剖面准确刻画出了模型中洞的大小和位置。

The amplitude-attenuated tomographic imaging sections can accurately describe the size and position of caverns in model .

你钻通过双方的信中洞，通过它运行的字符串。

You drill a hole in through the sides of the letter and run a string through it .

其中以宾阳中洞、奉先寺和古阳洞最具有代表性。

Among the grottoes , the Middle Binyang Cave , Fengxian Temple and Guyang Cave are the most representative ones .

暗挖地铁车站中洞法施工地面沉降控制的关键工序

The Critical Procedure of Controlling the Ground Subsidence in the Construction of Tunneling Subway Stations with the Center Drift Excavation Method

中洞法施工中，侧洞开挖引起的地表沉降占总地表沉降量的50%以上；

Values of ground surface settlement during side cavern cutting occupy total settlement values more than 50 % in the construction of CRD method ;

它可有效用于解决水利工程施工组织设计中洞径，堰高的计算问题。

It can be effectively used to solve the problem of computing tunnel diameter and cofferdam height in the organizational design of hydraulic engineering construction .

以北京城市铁路某浅埋暗挖区间隧道工程为例，分析了导洞隔离桩墙结构对中洞法双连拱隧道施工变形影响的限制作用。

Based on the construction of a shallow-buried tunnel in Beijing metro , the constraint effect of pilot-drift and separation-pile structure on ground movements induced by shallow tunneling is analysed .

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。

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 .

与过去所采用的浅埋暗挖法相比，中洞法能够在较低经济代价的基础上很好地控制开挖期间的地表沉降，满足城市环境安全的要求，在技术上具有很大优势。

Compared with traditional shallow tunnel construction method , Center drift excavation method can control the surface settlement in construction and meet the requirement of city environment safety and as well as have dominant technology , which is base on lower economic condition .