1) longitudinal ground settlement
纵向地表沉降
1.
Analysis and dynamic prediction of longitudinal ground settlements due to shield tunneling based on delayed difference equation;
盾构施工纵向地表沉降分析及基于延迟差分方程的动态预报
2) longitudinal settlement
纵向沉降
1.
Problems caused by longitudinal settlement of shield tunnel in soft ground, the main research achievements in this field are introduced, such as the longitudina l t heoretical analysis model of shield tunnel, the interaction analysis model betwe en soil and tunnel structure.
概述了软土地层盾构隧道纵向沉降引发的各种问题,分析了有关隧道纵向沉降方面的主要研究成果。
2.
Combining monitoring data and theoretical analysis,the process of the longitudinal settlement of an existing tunnel caused by an adjacent shield tunneling on top is studied.
研究发现,在软土层中直径在6m左右的隧道施工,在距离原有隧道10m以外的工况下,对原有隧道纵向沉降基本不会造成影响;穿越过程中,由于土体卸载等原因,已有隧道纵向沉降主要表现为隆起,且后期变化较大;发现隧道上穿后产生的隆起值占最终值近70%,且在10￣15天后达到最大值,而后产生少量回落,大约占最终隆起值的15%。
3.
43m,the distribution of grouting behind segments is very important to the tunnel s fi- nal longitudinal settlement.
43m,壁后注浆效果将对隧道的纵向沉降有重要影响,为了掌握该隧道壁后注浆的分布,以便进行有目的性的补偿注浆等措施,本工程利用探地雷达对壁后注浆分布进行探测。
3) Transverse subsidence of ground surface
地表横向沉降
4) Lognitudinal settlement difference
纵向沉降差
5) Surface subsidence
地表沉降
1.
Forecast and analysis of surface subsidence of metro tunnel construction in mucky ground;
淤泥质地层地铁隧道施工地表沉降预测及分析
2.
Analysis & statistics of surface subsidence of hidden-digging station construction in Beijing Subway;
北京地铁暗挖车站施工地表沉降统计及分析
3.
Finite element analysis of surface subsidence displacement in recovery blocks;
开采区块地表沉降位移的有限元分析
6) ground surface settlement
地表沉降
1.
Numerical analysis of deformation and ground surface settlement of overlying road caused by exploiting;
开采引起上覆公路地表沉降与变形的数值分析
2.
Improved the same dimension grey recurrence model for ground surface settlement prediction in tunnel
隧道地表沉降预测的改进等维灰数递补模型
3.
According to such the characteristics as shallow embedment and large span of Furongshan tunnel and through a large number of monitors for the ground surface settlement,its entire process curves and the deformation curves changed with time at the measured points are drawn out.
针对芙蓉山隧道具有浅埋、大跨度的特点,通过大量的地表沉降现场监测,绘出其全过程曲线以及各测点变形量随时间变化曲线,验证了地表控制隧道洞口稳定性的重要性;并通过对不同变化曲线进行分析,对隧道洞体的稳定性进行预判,指导施工。
补充资料：地表沉降观测
| 地表沉降观测 ground settlement observation 测定地面高程随时间变化的工作。地壳运动、开采矿藏或天然气、抽取地下水等均能引起地面高程变化。局部地区地面高程在短期内发生较大变化，对房屋、地下管道、道路、桥梁和水坝等有严重的破坏作用。城市和工业区地面的持续下沉甚至危及整个城市和工业区的安全。地表沉降观测可以定量地了解地面的升降。进行地表沉降观测，要在测区内选定适量的水准点作为地面观测点，并埋设标志，同时在沉降范围外的稳定处设置适量的基准点，也可把基准点设在沉降范围内，但必须设法使基准点高程不受地表沉降影响。在一个测区内至少要设置3个基准点 ，以便通过联测验证其稳定性。从基准点出发用精密水准测量方法测定各观测点的高程。不同日期两次测得同一观测点的高程之差，即代表地面高程在这两次观测期间的变化。根据大量的地表沉降观测资料，可以分析沉降规律，预计沉降的发展趋势。
|
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