海底隧道最小岩石覆盖厚度的权函数法  

Weighted function method for minimum rock cover thickness of subsea tunnel

作　　者：李术才[1] 徐帮树[2] 丁万涛[1] 张庆松[1] 

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

出　　处：《岩土力学》2009年第4期989-996,共8页Rock and Soil Mechanics

基　　金：国家自然科学基金资助项目(No.50539080;No.50574053)。

摘　　要：最小岩石覆盖厚度是海底隧道垂直线路设计的重要参数,影响海底隧道的造价和安全。总结了确定海底隧道最小岩石覆盖厚度常用的方法,包括工程类比法、数值分析法,并分析了各种方法的适用条件。基于大量数值分析,提出了通过最小位移确定最小岩石覆盖厚度的方法。根据专家经验,分析了最小岩石覆盖厚度各种影响因素的重要性,建立确定最小岩石覆盖厚度的权函数法,并应用于青岛胶州湾隧道工程,其研究成果对海底隧道的设计与施工具有参考价值。Minimum rock cover thickness is an important parameter in vertical route design of subsea tunnel; and it affects subsea tunnel cost and security. General methods for minimum rock cover thickness of subsea tunnel are summarized; including engineering analogy method and numerical analysis method. Additionally, appropriate conditions are analyzed for all methods. Minimum distance method is presented for minimum rock cover thickness based on a great number of numerical analysis experiences. Weighted function method for minimum rock cover thickness is presented according to expert experience and is applied to Qindao Jiaozhou subsea tunnel. The research results give a reference to subsea tunnel design and construction.

关 键 词：海底隧道 最小岩石覆盖厚度 最小位移法 权函数法 挪威建设经验 

分 类 号：U449[建筑科学—桥梁与隧道工程]