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结合北京地铁4号线项目,对北京地区特有地质条件下隧道盾构施工中的地表沉降进行研究。分析该类地表沉降的影响因素,阐述地表沉降与地层、时间和施工参数之间的关系。
In combination with the project of Beijing Metro Line 4, the ground settlement in tunnel shield construction under the special geological conditions in Beijing area is studied. Analyze the influencing factors of surface subsidence and discuss the relationship between surface subsidence and formation, time and construction parameters.