浅谈“两化改正”对矿山井下导线测量精度的影响  

Discussion on the influence of "two correction" on the accuracy of underground traverse survey

作　　者：刘彩霞[1] 刘轩[1] 李芳[2] LIU Cai-xia;LIU Xuan;LI Fang(No.3 mining area of Jinchuan Group Co.,Ltd.,Jinchang 737100,China;No.2 Mining Area of Jinchuan Group Co.,Ltd.,Jinchang 737100,China)

机构地区：[1]金川集团股份有限公司三矿区,甘肃金昌737100 [2]金川集团股份有限公司二矿区,甘肃金昌737100

出　　处：《世界有色金属》2021年第13期40-41,共2页World Nonferrous Metals

摘　　要：本文在金川某矿区测定一井下支导线,分别计算导线边长加入"两化改正"前后由量边误差所引起的四等支导线终点的位置误差,来说明导线边长加入"两化改正"对矿山井下低等级导线测量精度的影响。In this paper,a underground traverse is measured in a mining area of Jinchuan,and the position error of the end point of the fourth grade traverse caused by the measurement edge error before and after adding "two correction" to the traverse length is calculated respectively,so as to explain the influence of adding "two correction" to the traverse length on the accuracy of underground low-grade traverse measurement.

关 键 词：精度 两化改正 椭球面 高斯投影面 

分 类 号：U452.1[建筑科学—桥梁与隧道工程]