摘要
结合厦门东通道海底隧道工程,对海底隧道最小岩石覆盖层厚度、水压力设计值的确定,衬砌结构断面优化与防排水方案,穿越海底不良地质段(断层、溶槽)的施工措施及服务隧道设置的必要性问题进行了分析。提出应从围岩稳定性和隧道涌水量的大小综合考虑最小岩石覆盖层厚度;采用限量排放的防排水方案对海底隧道较为适宜;施工中可采用注浆和冻结法穿越海底的不良地质段;设置服务隧道有利于隧道施工和运营管理。
Combined with subsea tunnel engineering at eastern route way in Xiamen, the minimum rock covering thickness of subsea tunnel, water pressure design values, section optimization of lining structure and waterproof and drainage project, construction measures throughout bad subsea geology section, such as fault, solution groove, necessity of service tunnel setting were analyzed. Authors gave the minimum rock covering thickness with comprehensive consideration of stability of surrounding rock and tunnel seepage volume. Authors also put forward that waterproof and drainage project using limitation control was suitable; slip casting and freezing method could be used throughout bad geology section; service tunnel setting was beneficial to the tunnel construction and running management.
出处
《建筑科学与工程学报》
CAS
2005年第4期1-4,共4页
Journal of Architecture and Civil Engineering
关键词
岩石覆盖层厚度
水压力设计值
衬砌断面优化
防排水设计
服务隧道
rock covering thickness
water pressure design value
lining section optimization
waterproof and drainage design
service tunnel
