摘要
介绍了广州地铁石灰岩地层地质特征,提出盾构在此地层中施工要进行岩溶、土洞预处理,对掘进中出现的喷涌、盾构偏移、管片上浮等问题进行了原因分析并提出控制措施,对同类工程有参考价值。
The geological characteristics of the lime rock stratum of the Guangzhou Subway is introduced in the paper, which points out that when a shield is used for construction in lime rock stratum, karst and earth holes have to be pre-treated. The causes of gush, the shifting of the shield and the up-moving of the gilled tubes occurring during the drilling operation are analyzed, with control measures put forward. It may serve as a useful reference for other similar projects.
出处
《国防交通工程与技术》
2007年第2期49-51,55,共4页
Traffic Engineering and Technology for National Defence
关键词
盾构机
石灰岩地层
岩溶
土洞预处理
螺旋输送器喷涌
盾构机卡壳
shield
lime rock stratum
pre-treatment of karst and earth holes
gush at the screw conveyer
jamming of the shield
