结合井口对称点的竖井联系测量的应用  

The Application of Vertical Shaft Connection Survey Based on Wellhead Symmetrical Points

作　　者：张利来 张根山[2] ZHANG Lilai;ZHANG Genshan(Anyang Branch of Henan Co.,Ltd.,China Mobile Communications Group,Anyang 455000,China;PowerChina Hebei Electric Power Engineering Co.,Ltd.,Shijiazhuang 050031,China)

机构地区：[1]中国移动通信集团河南有限公司安阳分公司,河南安阳455000 [2]中国电力建设集团河北省电力勘测设计研究院有限公司,河北石家庄050031

出　　处：《电力勘测设计》2024年第4期65-70,共6页Electric Power Survey & Design

摘　　要：竖井联系测量中定向比较困难。为此,利用井口点对称性质,可减弱竖轴倾斜误差、投点误差和对中误差对水平角的影响,测定导线连接角,为隧道内导线建立起始或终止方向。对于两井定向,增加水平角校核条件,仍可采用无定向导线计算。结合某隧道扩建工程,验证该方法的有效性。该方法可结合其他定向方法,为一井定向导入较准确定向,对两井定向也有参考作用。It is difficult to orientate in vertical shaft connection survey.The influences of vertical axis tilt error,projection error and centering error on horizontal angle can be weakened by wellhead symmetrical points.It is proposed to arrange symmetrical points on wellhead to establish a starting or ending direction for a traverse in tunnel.For two shaft orientation,the check condition for horizontal angles can be added for non directional traverse.Combined with a tunnel expansion project,the effectiveness of the method was verified.The method can be used for one vertical shaft orientation on the basis of other methods,more accurate orientation azimuth can be determined.It can also be used as a reference for two shaft orientation.

关 键 词：竖井联系测量 竖轴倾斜误差 双轴补偿器 井口对称点 导线连接角 

分 类 号：P2[天文地球—测绘科学与技术]