摘要
为解决大型泥水平衡盾构出洞的技术难题,采用在洞口进行局部垂直冻结法加固土体,同时采用板块加拱棚冻结技术,使开挖面泥水保持压力平衡,并严格控制冻结过程中各种技术参数,有效控制冻胀和融沉,确保盾构安全出洞。
In order to resolve the technical problem in the launch of large scale slurry balanced shield,the cup like soil which in front of the shield hole of shaft is stabilized by vertically freezing.Various technical parameters in freezing process are strictly controlled to make the phenomena of frost heave and thaw settlement under control,which ensures the safety in shield launching.
出处
《地下工程与隧道》
2006年第1期39-41,共3页
Underground Engineering and Tunnels
