函谷关隧道工程测量设计毕设论文.docVIP

毕 业 设 计 [论 文] 题 目： 函谷关隧道工程测量设计 学 院： 测绘工程学院 专 业： 测绘工程 姓 名： 学 号： 0614092 指导老师： 完成时间： 2013年5月12日 摘要Abstract Tunnel engineering survey are made in the tunnelling works planning, investigation, design, construction and operation of the various phases of the measurement. This article focuses on construction surveying in the construction stage. Hanguguan tunnel is the Zhengzhou-Xian a large tunnel on passenger dedicated line, is an important project on the line as a whole. Tunnel length of 7840m. The location of the tunnel complex, is a mountainous region. And most of them located on the loess plateau with secondary accumulation of Yellow River terraces, height 370~590m relative height difference almost 220m. Tunnel terrain is a large, natural cross slope of 10~35 °. For guarantee tunnel can by provides of precision correctly through, to requirements: according to tunnel construction requirements of precision and construction order for corresponding of measurement, first according to tunnel line of shape and main entrance, and secondary entrance, and turning point of location for hole outside construction control network and entrance control network of cloth didnt and the Shi measuring, again for middle into hole relationship of calculation and the measurement, with tunnel forward extends and stage to will hole within basic control network forward extends, And construction control for continuous measurement of the wire and the centerline of the construction survey, guidance and assurance between different faces to the intended accuracy through through after the actual breakthrough error of measurement and adjustment of Central line, aspect of tunnel section measurement in construction and building layout. Key words: measurement of tunnel,