摘要
结合国内某城市规划地铁盾构区间上方新建隧道工程设计实践,对新建隧道预留盾构穿越条件及保护措施进行分析,提出调整变形缝位置、穿越区土体预加固等方案。通过理论分析,对穿越区土体加固范围、加固形式及加固指标等进行比选分析,并据此提出合理的加固方案。通过现场实测检验,对下穿预留条件设置方法及效果进行比较总结,为今后类似工程问题的处理提供依据。
Combined with the design practice of a domestic urban tunnel engineering at the top of a planning subway shield,analysis for new tunnel reserved shield across conditions and protection measures and proposal to adjust the position of deformation joint and soil body pre-reinforcement of through zones are put forward.Through theoretical analysis,the range of soil body reinforcement,reinforcement form and reinforcement indexes are analyzed and compared,and the reasonable reinforcement plan is determined finally.And through on-site inspection,the methods and effects for reserved across conditions are summarized,which will provide experience & reference for similar projects in the future.
出处
《中国市政工程》
2011年第2期30-33,89,共4页
China Municipal Engineering
关键词
隧道工程
盾构隧道
穿越
结构设计
土体加固
tunnel engineering
shield tunnel
crossing
structure design
soil body reinforcement
