摘要
上海临空园区地块地下连接通道采用超大断面矩形盾构机,近距离下穿大直径管道。工程是国内首条矩形盾构隧道的实践,具有施工工艺新、穿越距离近、覆土浅等特点。针对工程的特点,从隧道的设计和施工等方面进行了分析论述,提出了针对性的措施,并对矩形盾构推进过程中的管道变形情况进行了实时监测。结果表明,超大矩形盾构近距离穿越管线是切实可行的,在实施中采取的一系列措施是积极有效的。
The ultra-large section rectangular shield is used for the underground tunnel in the Linkong Area in Shanghai,and crosses the large-diameter pipelines underneath at short range.This project is the first rectangular shield tunnel in China,and has the characteristics of new construction technology,crossing at short range and shallow covering.In the light of the engineering characteristics,the article analyzes and discusses the design and construction of tunnel,puts forward the targeted measures,and introduces the real-time monitoring of pipeline deformation in the rectangular shield tunneling process.The result shows that the ultra-large rectangular shield crossing pipeline is feasible,and a series of measures taken in the implementation is active and effective.
出处
《城市道桥与防洪》
2018年第4期202-207,共6页
Urban Roads Bridges & Flood Control
关键词
矩形盾构
超大断面
复合管片
沉降控制
rectangular shield
ultra-large section
composite segment
settlement control
