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收稿日期: 2015-05-05
修回日期: 2015-07-29
网络出版日期: 2015-11-09
Countermeasures for Shield Tunneling underneath Shallow Foundation of Taiping North Road Stone Arch Bridge
Received date: 2015-05-05
Revised date: 2015-07-29
Online published: 2015-11-09
赵立锋 , 邓剑峰 , 安乐 . 地铁盾构下穿浅基础太平北路石拱桥施工技术[J]. 隧道建设, 2015 , 35(10) : 1066 -1070 . DOI: 10.3973/j.issn.1672-741X.2015.10.015
A running tunnel of Line 3 of Nanjing Metro crosses underneath a stone arch bridge, which has to be reinforced before shield tunneling. However, due to the particular ground surface conditions, the stone arch bridge cannot be reinforced from the ground surface. Therefore, inner concrete arches are installed for the stone arch bridge and the shield boring parameters are optimized. In the end, the quality of the shield bored tunnel is ensured and the shield passes the stone arch bridge successfully.
Key words: Nanjing Metro; shield; stone arch bridge; reinforcement; shield tunneling parameters
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