隧道涌水量解析公式在海底隧道工程应用研究  

Research on Application of Analytic Formula of Water Inflow into Tunnel to the Sub-sea Tunnel

作　　者：丁万涛[1] 李术才[1] 徐帮树[1] 李树忱[1] 

机构地区：[1]山东大学岩土与结构研究工程中心,济南250061

出　　处：《地下空间与工程学报》2008年第4期662-664,共3页Chinese Journal of Underground Space and Engineering

基　　金：国家973计划专题(编号2007CB209407)

摘　　要：基于隧道涌水量解析公式,从隧道涌水量的角度出发考虑确定海底隧道的最小岩石覆盖厚度。通过对解析公式的微分变换,得到隧道涌水量取最小值时,岩石覆盖厚度的计算公式,并根据该公式计算得到对应不同海水深度、不同隧道等效半径的最小岩石覆盖厚度表。采用该法选择青岛胶州湾海底隧道部分典型剖面最小岩石覆盖厚度的经验表明,对海底隧道基岩裸露,地层岩性变化较小的情况,采用隧道涌水量解析公式变化得到的计算岩石覆盖厚度的计算公式,计算海底隧道的最小岩石覆盖厚度是可行的。同时该方法对以后相似地质条件的海底隧道确定最小岩石覆盖厚度具有一定的参考意义。Based on the analytic formula of groundwater inflow into tunnel, this paper puts forward a method to choose the minimal rock cover of sub - sea tunnel. According to differential calculus of analytic formula, the formula to compute the rock cover is rewarded under the minimal ground - water inflow. The form of the minimal rock cover under different water depth and different effective radius is rewarded employing the formula to compute the rock cover. The experiences of the minimal rock cover of sub - sea tunnel of Kiaochow Bay show that the method is feasible when the rock of sub - sea bed is uncovered and the geological condition is simple. Meanwhile the method has its useful role to choose the minimal rock cover in the similar condition as the geological one of this sub-sea tunnel.

关 键 词：隧道涌水量 解析公式 最小岩石覆盖厚度 海底隧道 

分 类 号：U45[建筑科学—桥梁与隧道工程]