邻近地铁盾构隧道的深基坑施工要点及施工监测研究

Research on Construction Key Points and Construction Monitoring of Deep Foundation Pit Adjacent to Subway Shield Tunnel

为了有效降低深基坑在开挖过程中土层结构发生变化对周围施工环境造成的影响,论文以广州市地铁10号线东湖站为例,对邻近地铁盾构隧道的深基坑施工要点及施工监测进行研究。结果表明,以型钢组合支撑体系为代表的新体系,具备整体性、独立性以及连接性特点,可以与承受压力的型钢形成网络状结构,提高基坑围护结构的稳定性,符合当前工程施工的实际需求,可以在同类工程中得到更大程度的应用。

In order to effectively reduce the influence of the change of soil structure on the surrounding construction environment during the excavation of deep foundation pit,this paper takes Donghu Station of Guangzhou Metro Line 10 as an example to study the construction key points and construction monitoring of the deep foundation pit of adjacent subway shield tunnel.Results show that the new system represented by steel combination support system,with integrity,independence and connectivity features,with the stress of steel form a reticular structure,improve the stability of the retaining structure of foundation pit,conforms to the actual demand of the current engineering construction,can get more application in similar projects.