平行隧道盾构施工对土体变形的影响分析  

Analysis on the Soil Deformation Induced by Twin Shield Tunnels

作　　者：徐洪波 

机构地区：[1]福建省宏泰建设工程有限公司,福州350000

出　　处：《土工基础》2013年第6期71-74,共4页Soil Engineering and Foundation

摘　　要：采用有限差分软件FLAC3D,建立盾构隧道的三维数值模型,研究平行盾构隧道施工引起的地表沉降和土体水平变形规律。比较了单、双孔隧道施工地表沉降的特点,分析了平行盾构隧道施工的同步性、掌子面距离、注浆时间和土舱压力等对土体变形的影响,研究结果对实际工程具有一定的参考意义。This paper presents a FLAC3D finite difference model of the twin shield tunnels. The objective of the model is to obtain the surface settlement and soil mass movement during the tunnel construction. The settlement characteristics of single and double tunnels, the shield support time, distance to the shielding surface, grouting time and soil pressures on the deformation of the sounding soils are also investigated.

关 键 词：盾构隧道 数值模拟 地表沉降 水平位移 

分 类 号：TU433[建筑科学—岩土工程]