引水隧洞贯通测量中地下导线测量技术方案设计  

Design of Underground Traverse Survey Technique Scheme in Holing-Through Survey of Diversion Tunnel

作　　者：朱晓江[1] 

机构地区：[1]新疆水利水电勘测设计研究院测绘工程院,新疆昌吉831100

出　　处：《地矿测绘》2017年第4期22-24,共3页Surveying and Mapping of Geology and Mineral Resources

摘　　要：贯通测量的主要任务是制定合理可行的测量技术方案保证贯通误差满足规范要求,就目前的测量技术水平和仪器设备而言,使用几何水准测量方法能使竖向贯通误差精度满足要求,贯通测量的重点是如何使得横向贯通误差精度满足要求。以某工程为例,该工程引水隧洞开工在即,为保证隧洞最终顺利精确贯通,文章从隧洞工程特点、使用测量仪器、洞内布设导线等因素入手,结合规范对贯通误差的分配值,分析论证采用哪一等级导线进行施测可满足引水隧洞贯通的精度。The main task of holing-through survey is to design a feasible survey technical scheme to guarantee the through error meet the standard requirement. On the basis of present measurement technical level and equipment, the use of geometric leveling method could meet the requirement of longitudinal through error. However, holing-through survey should place emphasis on how to make the lateral error meet the accuracy requirement. For example of a project, the diversion tunnel of the project which is about to star. In order to ensure the tunnel through successfully, starting from the characteristics of tunnel engineering, the instruments used and the traverse layout in the tunnel and other factors, combined with the through error distribution requirement specified in the standard, it is analyzed and demonstrated which grade traverse can be used to meet the through accuracy requirement of diversion tunnel.

关 键 词：引水隧洞 贯通测量 横向贯通误差 地下导线测量 

分 类 号：P214[天文地球—测绘科学与技术]