摘要
当前黄土隧道的研究均将隧道周围黄土作为IV级、V级围岩对待,忽视了黄土隧道的工程特征和黄土隧道与岩质隧道的本质差别,导致当前黄土隧道在施工和运营中灾害频发。文章以在建连霍国道主干线天定高速公路TD19合同段定西隧道为工程应用背景,对天定高速TD19标定西浅埋偏压黄土隧道的应力、变形系统进行监测,在此基础上结合黄土的工程性质、黄土地区工程地质灾害的主要表现类型,对定西黄土隧道的工程特性进行了分析和探讨,提出了相应的建议措施。
At present,researches of tunnel of loess treat loess around tunnel as IV and V wall rock and ignore features of project of tunnel of loess and essence difference between loess tunnel and rock tunnel,which cause fatalities happened frequently in construction of tunnel loess.In this paper,according to background of Dingxi tunnel of Tianding freeway TD19 contract section,the author monitored stress and deformation system of CRD Method to loess tunnel.Based on this conclusion,the author discussed features of projects of Dingxi loess tunnel,and put forward corresponding suggestions combining features of projects of loess and main performance of geological disasters of projects in loess area.
出处
《科技创新与生产力》
2012年第3期96-99,共4页
Sci-tech Innovation and Productivity
关键词
隧道工程
黄土隧道
流变
工程特性
tunnel construction
tunnel of loess
features of project
