港口区地下通道衔接既有地铁车站施工影响及控制措施研究  

Study on construction influence and control measures of connecting the underground passage in port area with existing subway station

作　　者：吕海英 朱雯蕾 Lu Haiying;Zhu Wenlei

机构地区：[1]中交铁道设计研究总院有限公司

出　　处：《现代城市轨道交通》2020年第2期44-49,共6页Modern Urban Transit

摘　　要：广州南沙客运港地下通道与既有地铁4号线南沙客运港站Ⅶ号出入口衔接工程,位于存在较厚海陆交互相沉积淤泥质土港口区,地质情况较复杂。文章采用数值模拟方法,分析衔接工程施工过程中引起的周边地层变形、既有地铁结构变形情况。根据模拟结果,结合相关工程经验,提出施工过程中对地层及既有地铁结构变形控制措施及建议,避免因变形过大而导致地铁结构破坏发生。The project of connecting the underground passage of Nansha passenger port in Guangzhou with the entrance and exit Ⅶ of Nansha passenger port station of the existing metro line 4 is located in the port area where there is relatively thick stratum of sea-land interaction sedimentaty muddy soil,and the geological situation is relatively complex.This papermses the numerical sinulation method to analyze the deformation of surrounding strata and existing subway structure caused by the construction process of connection project.Based on the simulation results and the relevant engineering experience,it puts forward the deformation control measures and suggestions for the stratum and the existing subway structure in the construction process,so as to avoid the damage of the subway structure caused by the excessive deformation.

关 键 词：地铁 港口区 地下通道 施工影响 控制措施 

分 类 号：TU411[建筑科学—岩土工程]