摘要
长沙市地铁一号线涂家冲站-铁道学院站区间沿芙蓉南路敷设,先后穿越二环路、京广铁路等。穿越南二环新中路立交时,区间隧道采取绕避的方式在桥桩间穿越,长约750 m。结合地质条件及区间隧道与桥桩的相互关系,论述盾构施工对桥桩的影响,并提出相应的保护措施。
Tujiachong-Changsha Railway University section of Changsha Metro Line 1 goes along Furong South Road, and crosses under the second ring road and existing Beijing-Guangzhou Railway. When it crosses under the Xinzhonglu Flyover on South Second Ring Road, the tunnel bypasses the piles of the flyover for a length of 750 m. The paper describes the geological conditions, and relations between tunnel section and viaduct piles, and discusses the impact of shield tunneling on piles, and puts forwards counter protection measures.
出处
《铁道建筑技术》
2013年第1期11-16,共6页
Railway Construction Technology
关键词
盾构
近接桥桩
影响分析
保护
shield
close to piles
impact analysis
protection
