基于某地铁盾构隧道施工地表沉降的分析研究

盾构法施工技术以其特有的智能、安全、快捷、地层适用性广等特点与优势,在我国城市地铁建设中越来越多的得到推广和应用,但此法受工程地质条件、掘进过程人为控制等因素的影响,可能引起地表沉降。本文从盾构掘进对土体扰动而导致其平衡状态变化的角度讨论了地表沉降的机理,对盾构施工地表沉降的发展过程进行了详细的分析,最后利用轨道交通工程某号线盾构工程实际监测数据分析了地表沉降的一般规律,并提出防止地表沉降的控制措施,以期为类似工程施工提供有益的参考和帮助。

Based on the subway shield tunnelling construction of surface subsidence analysis

Shield tunneling technology,with its unique intelligent,safe,fast,and wide applicability formation characteristics and advantages of metro construction in Chinese cities are increasingly being applied in the promotion and application of this law,but by the engineering geological conditions,driving the process of human control factors,may cause surface subsidence.This article from the shield of the soil disturbance caused by changes in its balance.Discussed in terms of the mechanism of ground on the development of ground shield construction process of a detailed analysis.In the last,using the engineering test data analysis of the general laws of ground and surface subsidence control measures in the Metro Shield engineering.In order to providing useful practice for Shield engineering reference and helping.