挪威海底隧道最小岩石覆盖厚度的经验及应用  

Norwegian Experience and its Application for Minimum Rock Cover Thickness of Subsea Tunneling

作　　者：徐帮树[1] 丁万涛[2] 李术才[2] 

机构地区：[1]山东大学土建与水利学院地下空间系,济南250061 [2]山东大学岩土与结构工程研究中心,济南250061

出　　处：《武汉理工大学学报（交通科学与工程版）》2008年第4期723-726,共4页Journal of Wuhan University of Technology（Transportation Science & Engineering）

基　　金：国家自然科学基金项目资助(批准号:50539080;50574053)

摘　　要：挪威是世界上采用钻爆法修建海底隧道最多的国家,在最小岩石覆盖厚度取值方面积累了大量经验.舟山灌门水道海底隧道地质条件、设计断面与挪威已建海底隧道有类似之处,可以借鉴挪威经验确定其最小岩石覆盖厚度.文中总结出挪威海底隧道最小岩石覆盖厚度的海水深度经验曲线和基岩埋深经验曲线.根据舟山灌门水道海底隧道地质纵断面图,选择控制垂直线路走向的3个分析断面,应用挪威经验得到相应分析断面的最小岩石覆盖厚度.Minimum rock cover thickness is an important parameter in vertical alignment design of subsea tunnel, and affects subsea tunnel construction cost and security. General methods are summarized for minimum rock cover thickness of subsea tunnel, including engineering analogy method and numerical analysis method. In the last 30 years, rich experiences have been gained in Norway from constructing 40 subsea tunnels. Norwegian experiences would be used for designing Zhoushan subsea tunnel because of their similar geologic condition and tunnel cross section. Minimum rock cover thickness is obtained according to the Norwegian rock cover curve with sea water depth and the Norwegian rock cover curve with bedrock depth.

关 键 词：海底隧道 最小岩石覆盖厚度 挪威建设经验 工程类比法 

分 类 号：U459.5[建筑科学—桥梁与隧道工程]