摘要
既有地铁盾构隧道对变形控制要求高,在其正上方开挖施工深基坑难度大。以杭州某深基坑为例,既有地铁隧道位于拟建二层地下室基坑底部下约9m位置,斜穿整个地下室。介绍既有地铁隧道上方基坑支护设计施工中的要点、难点,以及结构工程桩上相应的应对措施。为今后类似工程的设计、施工和研究提供有益的借鉴。
The existing metro shield tunnel requires deformation control. Excavation of deep excavations on its right side is very difficult. Taking a deep excavations in Hangzhou as an example, in which the existing metro shield tunnel is located at the bottom of the foundation pit of the two storey basement for about 9 meters, the paper introduces the main points and difficulties in the design and construction of foundation pit support above the existing subway tunnel, and the corresponding measures for structural engineering piles. It will provide a useful reference for the design, construction and research of similar projects in the future.
作者
黄福明
HUANG Fuming(Hangzhou Zhejiang Univ. of Fuchide Survey and Design Co., Ltd., Hangzhou 310012, Chin)
出处
《低温建筑技术》
2018年第7期116-119,共4页
Low Temperature Architecture Technology
关键词
深基坑
地铁隧道
三轴加固
foundation ditch
metro tunnel
excavate
