灵山重力标定基线场的升级改造与复测  

Reform and Repetition Measurement of Lingshan Gravity Calibration Baseline Field

作　　者：韩宇飞 何志堂[2] 刘阳 李瑜 师宏波 王坦 

机构地区：[1]地壳运动监测工程研究中心,北京100045 [2]国家测绘地理信息局第一大地测量队,陕西西安710054

出　　处：《测绘地理信息》2017年第4期69-72,共4页Journal of Geomatics

基　　金：地震科技星火计划资助项目(XH17053);地震行业科研专项资助项目(201308004)

摘　　要：完成了灵山重力标定基线场的升级改造,新建4个绝对重力观测墩,改造1个相对重力标墩,对所有重力测点进行相对重力联测。测量数据分析结果显示,基线场观测墩建设和重力联测工作均符合相关要求;各相邻重力点间6台仪器测量段差互差均优于40×10^(-8) m·s^(-2);改造后的灵山重力标定基线场最大重力段差值为246 956.8×10^(-8) m·s^(-2)。对比1990年建场值和2000年复测值结果,2014年复测结果显示该基线场稳定性较好,一般重力测量的重力仪标定可以根据测程范围选择灵山重力标定基线场进行标定。In this paper, we finished the upgrades of Lingshan gravity calibration baseline field, established four new absolute gravity observation piers and transformed one relative gravity pier, accomplished the relative gravity measurement of all the stations. Data analysis results show that the construction of base- line field observation piers and gravity conjunction meet relative requirements. The difference of adjacent gravity points for six instruments are superior to 40 × 10^-8 m · s-2. The maximum gravity difference of reconfigured Lingshan gravity calibration baseline field is 246 956.8 × 10^-8 m · s^-2. Compared with the data obtained in 1990 and 2000, repetition survey results in 2014 show that the baseline stability is better.

关 键 词：重力标定场 短基线 相对重力测量 

分 类 号：P223.3[天文地球—大地测量学与测量工程]