摘要
盾构机出入洞时,为了防止受到扰动的土体发生塌陷以及引起地表下沉等,需对盾构端头进行加固。通过广州地铁建设的实例,讨论采用素混凝土连续墙的加固方法,指出加固效果对于稳定端切面非常重要。结果表明,工程一次成槽宽度达9m,成槽过程无塌孔等现象出现,测试加固效果良好。
When a shield machine is launching from or entering into a shaft, strengthening the front of the shield is necessary in order to prevent collapse arising from disturbed soils and surface settlement. There are many kinds of strengthening methods, yet this paper describes the strengthening approach by adopting plain concrete diaphragm wall in Guangzhou subway construction.
出处
《都市快轨交通》
2008年第5期60-63,共4页
Urban Rapid Rail Transit
关键词
盾构
隧道
素混凝土
连续墙
加固
shield
ttmnel
plain concrete
diaphragm wall
strengthening
