V级浅埋围岩隧道复合式衬砌钢拱架榀距分析  

Analysis of steel arch frame spacing of the shallow tunnel composite lining in the fifth level rocks

作　　者：皇民[1,2] 康一[1] 潘炳玉[1] 肖昭然[3] 赵玉如[1] 

机构地区：[1]河南工程学院土木工程学院,河南郑州451191 [2]郑州大学土木学院,河南郑州450001 [3]河南工业大学土木建筑学院,河南郑州450001

出　　处：《河南工程学院学报（自然科学版）》2015年第2期30-33,共4页Journal of Henan University of Engineering：Natural Science Edition

基　　金：河南省教育厅自然科学研究重点项目(12A560004;15A560020);郑州市科技发展计划项目(20130816)

摘　　要：为了探究V级围岩浅埋段复合式衬砌钢拱架的合理榀距,保证工程的经济性与安全性,结合中原路西延上街辘把坡至巩义S237快速通道韩门隧道工程实例,选取有代表性的断面,采用理论计算和数值分析法,结合现场的变形监测数据分析结果,对该隧道V级围岩段的钢拱架榀距进行了安全性评估.结果表明,在该条件下钢拱架设计榀距的安全储备过于充足、设计偏保守,施工图设计的钢拱架支护参数可以再作适当的优化调整.In order to solve the reasonable spacing of the steel arch frame of composite lining for shallow tunnel in the fifth level surrounding rocks and ensure the economy and security of the program,the paper selects special positions in the Hanmen tunnel of Zhongyuan Road extending from Shangjie to Gongyi S237 fast road and makes an estimate for the security,by theoretical arithmetic, numerical analysis and the analytic result of monitoring data. The results point out that the spacing designed for the steel arch frame is too conservative,which causes the program is uneconomical. The parameters of steel frame spacing should be devised for an appropriate adjustment.

关 键 词：公路隧道 复合式衬砌 数值模拟 隧道监测 钢拱架榀距 

分 类 号：U451.4[建筑科学—桥梁与隧道工程]