自行走隧道掘进机施工引起地表沉降规律分析  

Analysis on the laws of ground surface subsidence caused by self-walking TBM construction

作　　者：卢清国[1] 关圣府[1] 张耀庆[1] 

机构地区：[1]北京工业大学

出　　处：《山西建筑》2011年第16期179-180,共2页Shanxi Architecture

摘　　要：通过水准测量对自行走隧道掘进机施工过程中地表变形进行了研究,结果表明:横向沉降槽曲线不完全符合Peck理论的正态分布,最大沉降点位于轴线上方。沉降变形集中发生在土体开挖而掘进机尚未到达掌子面时,环向增阻块对土体挤压造成地表轻微隆起。This thesis studies the ground surface deformation in the self-walking TBM construction process with leveling. Results show that transverse Settling tank curve doesn＇ t completely follow the normal distribution of Peck theory, the biggest settling point lies on the top of the axis, the settling deformation mainly occurs in the earth excavation but TBM not arriving to the face, the cycling-direction increasing resistance block leads to the light protuberance of the earth body compaction.

关 键 词：自行走掘进机 现场试验 地表变形 沉降槽 

分 类 号：U455.44[建筑科学—桥梁与隧道工程]