超长地铁隧道区间贯通后两站一区间控制点联测方法研究  

Research on two-Station-one-interval Control Point Joint Measurement Method After the Interval of Super-long Metro Tunnel is Connected

作　　者：王智 梁显宏 Wang Zhi;Liang Xianhong(Qingdao Surveying and Mapping Research Institute,Qingdao 266032,China;Qingdao West Coast Geomatics Center Co.,Ltd.,Qingdao 266000,China)

机构地区：[1]青岛市勘察测绘研究院,山东青岛266032 [2]青岛市西海岸基础地理信息中心有限公司,山东青岛266000

出　　处：《城市勘测》2020年第1期173-176,共4页Urban Geotechnical Investigation & Surveying

摘　　要：地铁隧道区间贯通后,要对区间内控制点进行联测,联测平差成果既是隧道限界测量的依据,也是铺轨测量的起算点,传统联测方法是约束两个车站的底板控制点,平差计算区间内控制点,但对于长距离隧道区间,该方法平差后附合导线中间控制点精度低,且成果与原有成果偏差大。以青岛地铁1号线过海隧道区间为例,探讨了长距离地铁隧道区间控制点联测方法,分析了平差精度与约束点的关系,为其他长距离地铁隧道控制点联测提供了宝贵的借鉴经验。After the subway tunnel interval is connected,it is necessary to carry out the joint measurement of the control points in the interval.The results of the joint survey adjustment are not only the basis of the tunnel boundary survey,but also the starting point of the track-laying survey.The traditional method of joint measurement is to restrict the control points of the floor of the two stations.The adjustment calculates the control points in the interval,but for the long-distance tunnel interval,the accuracy of the intermediate control points after adjustment by this method is low,and the deviation between the results and the original results is large.Taking the cross-sea tunnel interval of Qingdao Metro Line 1 as an example,this paper discusses the joint measurement method of long distance subway tunnel interval control points,and analyzes the relationship between adjustment accuracy and constraint points.It provides valuable experience for other long-distance subway tunnel control point joint survey.

关 键 词：地铁隧道 贯通测量 控制测量 附合导线 

分 类 号：P258[天文地球—测绘科学与技术]