摘要
城市轨道交通盾构隧道中最重要的是保证横向贯通测量的精度。该文以济南轨道交通某1500m的盾构隧道贯通测量为例,通过对地面控制测量、两井定向优化增加检核条件、布设地下主副导线环及交叉导线网、增加陀螺定向边等方法的综合运用,控制盾构隧道的横向贯通测量精度,保证了隧道的顺利贯通。该工程为今后类似工程提供了借鉴。
The most important thing for urban rail transit shield tunnel is to ensure the accuracy of lateral through survey. This paper takes a 1500m shield tunnel of Jinan subway as an example. Through the comprehensive application of ground control survey, additional checking conditions of two-wells orientation optimization, laying main and auxiliary underground traverse rings and cross traverse networks, and increasing gyro orientation edge, the lateral through survey accuracy of shield tunnel is controlled , the smooth penetration of tunnel is ensured. The engineering provides a reference for similar projects in the future.
作者
纪万坤
胡永利
靳羽西
Ji Wankun;Hu Yongli;Jin Yuxi(Beijing Urban Construction Exploration & Surveying Design Research Institute Co. , Ltd.;Jinan Rail Transit Group Co. , Ltd)
出处
《勘察科学技术》
2019年第2期53-56,共4页
Site Investigation Science and Technology
关键词
贯通测量
联系测量
陀螺定向
两井定向
through survey
connection survey
gyroscopic orientation
two-wells orientation
