摘要
广州地铁五号线区庄站暗挖大跨车站是在城区狭小场地由小竖井进大断面隧道施工,由于施工竖井与大跨隧道平面尺寸不同,隧道洞口与竖井交叉口处受力体系转换复杂,造成隧道进洞施工困难。为保证安全,采用在横通道内施做桩梁临时支护体系的方法解决了该施工难题,形成了小竖井进大断面隧道进洞施工关键技术,取得了良好的经济和社会效益。
The Ouzhuang station of Guangzhou metro is built in narrow ground with minor shaft and large cross-section. Because of the complex stress in the adjacent,the construction of the long-span tunnel is very difficult. Insure the safety of the construction,pile and beam supporting system is used to solve the problems. And then construction technology of the tunnel with minor shaft and large cross-section in narrow ground is formed. It proves that the technic gets better economic effects and society effects.
出处
《广东土木与建筑》
2014年第4期49-51,共3页
Guangdong Architecture Civil Engineering
关键词
狭小场地
竖井
大断面
隧道
转换
narrow ground
shaft
large cross-section
tunnel
transfer
